fix: add missing CSP style-src nonce and include static SVGs in wheel

ci(release): fix tag env, upgrade actions, add release permissions
fix(ci): use gitea.ref_name and map PYPI_TOKEN env for publish step
2026-07-27 09:03:44 +02:00 · 2026-07-26 23:35:30 +02:00 · 2026-07-26 18:19:11 +02:00 · 2026-07-26 18:15:29 +02:00 · 2026-07-22 21:25:27 +02:00 · 2026-07-22 21:22:08 +02:00
104 changed files with 12938 additions and 3856 deletions
@@ -1,43 +0,0 @@
 # EditorConfig: https://editorconfig.org
 root = true
 [*]
 charset = utf-8
 end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
 indent_style = space
 indent_size = 2
 [*.{rb,erb,gemspec}]
 indent_style = space
 indent_size = 2
 [{Gemfile,Rakefile}]
 indent_style = space
 indent_size = 2
 [*.{js,html,css,vue}]
 indent_style = space
 indent_size = 2
 [*.{yml,yaml,json,toml}]
 indent_style = space
 indent_size = 2
 [*.{rs,cj}]
 indent_style = space
 indent_size = 4
 [*.go]
 indent_style = tab
 indent_size = 4
 [justfile]
 indent_style = tab
 [*.md]
 indent_style = space
 indent_size = 2
 trim_trailing_whitespace = false
@@ -1,129 +0,0 @@
 name: Release
 on:
  push:
    tags: ["v*"]
 jobs:
  release:
    runs-on: codeberg-small
    steps:
      - uses: https://data.forgejo.org/actions/checkout@v4
      - uses: https://github.com/ruby/setup-ruby@v1
        with:
          ruby-version: "3.4"
          bundler-cache: true
      - name: Resolve and verify version
        id: version
        env:
          REF: ${{ forgejo.ref }}
        run: |
          set -euo pipefail
          VERSION="${REF##*/}"
          if [[ ! "$VERSION" =~ ^v[0-9]+(\.[0-9]+){0,2}([-+].*)?$ ]]; then
            echo "ERROR: expected a semver tag like v1.2.3, got: '$VERSION' (ref: '$REF')"
            exit 1
          fi
          VERSION_NO_V="${VERSION#v}"
          GEM_VERSION="$(ruby -Ilib -rvolumen/version -e 'print Volumen::VERSION')"
          if [ "$VERSION_NO_V" != "$GEM_VERSION" ]; then
            echo "ERROR: tag ${VERSION} does not match Volumen::VERSION (${GEM_VERSION})"
            exit 1
          fi
          echo "version_no_v=${VERSION_NO_V}" >> "$FORGEJO_OUTPUT"
      - name: Quality gate
        run: |
          set -euo pipefail
          bundle exec rubocop
          bundle exec rake test
      - name: Build gem
        env:
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
        run: |
          set -euo pipefail
          gem build volumen.gemspec --output "volumen-${VERSION_NO_V}.gem"
          ls -lh "volumen-${VERSION_NO_V}.gem"
      - name: Extract CHANGELOG section
        env:
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
        run: |
          set -euo pipefail
          sed -n "/^## \[${VERSION_NO_V}\] /,/^## \[/p" CHANGELOG.md \
            | sed '$d' \
            | tail -n +2 \
            > release-body.md
          if [ ! -s release-body.md ]; then
            echo "ERROR: no CHANGELOG section found for ${VERSION_NO_V}"
            echo "Expected a heading like: ## [${VERSION_NO_V}] — YYYY-MM-DD"
            exit 1
          fi
          echo "Release body preview:"
          head -n 20 release-body.md
      - name: Create release
        id: create
        env:
          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
        run: |
          set -euo pipefail
          BODY="$(ruby -rjson -e 'print JSON.generate($stdin.read)' < release-body.md)"
          response="$(curl -sS -w '\n%{http_code}' \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -H "Content-Type: application/json" \
            -X POST \
            "${FORGEJO_SERVER_URL}/api/v1/repos/${FORGEJO_REPOSITORY}/releases" \
            -d "{
              \"tag_name\": \"${FORGEJO_REF_NAME}\",
              \"name\": \"${FORGEJO_REF_NAME}\",
              \"body\": ${BODY},
              \"draft\": false,
              \"prerelease\": false
            }")"
          http_code="$(echo "$response" | tail -1)"
          payload="$(echo "$response" | sed '$d')"
          echo "HTTP ${http_code}"
          if [ "$http_code" != "201" ]; then
            echo "Failed to create release: ${payload}"
            exit 1
          fi
          RELEASE_ID="$(echo "$payload" | ruby -rjson -e 'print JSON.parse($stdin.read)["id"]')"
          echo "Created release ID=${RELEASE_ID}"
          echo "release_id=${RELEASE_ID}" >> "$FORGEJO_OUTPUT"
      - name: Upload gem asset
        env:
          FORGEJO_TOKEN: ${{ secrets.FORGEJO_TOKEN }}
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
          RELEASE_ID: ${{ steps.create.outputs.release_id }}
        run: |
          set -euo pipefail
          GEM="volumen-${VERSION_NO_V}.gem"
          http_code="$(curl -sS -o /dev/null -w '%{http_code}' \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -H "Content-Type: application/octet-stream" \
            -X POST \
            --data-binary "@${GEM}" \
            "${FORGEJO_SERVER_URL}/api/v1/repos/${FORGEJO_REPOSITORY}/releases/${RELEASE_ID}/assets?name=${GEM}")"
          echo "HTTP ${http_code}"
          if [ "$http_code" != "201" ]; then
            echo "Failed to upload ${GEM}"
            exit 1
          fi
          echo "Release ${FORGEJO_REF_NAME} is live with ${GEM}."
@@ -1,39 +0,0 @@
 name: Test
 on:
  push:
    branches: [development]
  pull_request:
    branches: [development]
 jobs:
  lint:
    runs-on: codeberg-small
    steps:
      - uses: https://data.forgejo.org/actions/checkout@v4
      - uses: https://github.com/ruby/setup-ruby@v1
        with:
          ruby-version: "3.4"
          bundler-cache: true
      - name: RuboCop
        run: bundle exec rubocop
  test:
    runs-on: codeberg-small
    needs: lint
    strategy:
      fail-fast: false
      matrix:
        ruby-version: ["3.3", "3.4"]
    steps:
      - uses: https://data.forgejo.org/actions/checkout@v4
      - uses: https://github.com/ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby-version }}
          bundler-cache: true
      - name: Tests
        run: bundle exec rake test
@@ -0,0 +1,145 @@
 # Release — Python package. Runs on version tags (v1.2.3) pushed to main.
 # Creates a Gitea release with wheel + sdist and publishes to PyPI.
 # Requires a PYPI_TOKEN secret (project-scoped upload token).
 name: Release
 on:
  push:
    tags: ["v*"]
 jobs:
  release:
    runs-on: fedora
    permissions:
      releases: write
    steps:
      - uses: actions/checkout@v7
      - name: Set up Python and uv
        uses: astral-sh/setup-uv@v6
        with:
          python-version: "3.14" # match requires-python in pyproject.toml
          enable-cache: true
          cache-dependency-glob: "uv.lock"
      - name: Resolve and verify version
        id: version
        env:
          VERSION: ${{ gitea.ref_name }}
        run: |
          set -euo pipefail
          if ! echo "$VERSION" | grep -qE '^v[0-9]+(\.[0-9]+){0,2}([-+].*)?$'; then
            echo "ERROR: expected a semver tag like v1.2.3, got: '$VERSION'"
            exit 1
          fi
          VERSION_NO_V="${VERSION#v}"
          PYPROJECT_VERSION="$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")"
          if [ "$VERSION_NO_V" != "$PYPROJECT_VERSION" ]; then
            echo "ERROR: tag ${VERSION} does not match pyproject.toml version (${PYPROJECT_VERSION})"
            exit 1
          fi
          echo "version_no_v=${VERSION_NO_V}" >> "$GITEA_OUTPUT"
      - name: Quality gate
        run: |
          set -euo pipefail
          uv sync --frozen --group dev
          uv run ruff check src/ tests/
          uv run ruff format --check src/ tests/
          uv run pytest
      - name: Build wheel and sdist
        env:
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
        run: |
          set -euo pipefail
          uv pip install --upgrade build
          uv run python -m build
          ls -lh "dist/volumen-${VERSION_NO_V}"*
      - name: Extract CHANGELOG section
        env:
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
        run: |
          set -euo pipefail
          sed -n "/^## \[${VERSION_NO_V}\] /,/^## \[/p" CHANGELOG.md \
            | sed '$d' \
            | tail -n +2 \
            > release-body.md
          if [ ! -s release-body.md ]; then
            echo "ERROR: no CHANGELOG section found for ${VERSION_NO_V}"
            echo "Expected a heading like: ## [${VERSION_NO_V}] — YYYY-MM-DD"
            exit 1
          fi
          echo "Release body preview:"
          head -n 20 release-body.md
      - name: Create release
        id: create
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
          GITEA_SERVER_URL: ${{ gitea.server_url }}
          GITEA_REPOSITORY: ${{ gitea.repository }}
          GITEA_REF_NAME: ${{ gitea.ref_name }}
        run: |
          set -euo pipefail
          BODY="$(python -c 'import json,sys; print(json.dumps(sys.stdin.read()))' < release-body.md)"
          response="$(curl -sS -w '\n%{http_code}' \
            -H "Authorization: token ${GITEA_TOKEN}" \
            -H "Content-Type: application/json" \
            -X POST \
            "${GITEA_SERVER_URL}/api/v1/repos/${GITEA_REPOSITORY}/releases" \
            -d "{\"tag_name\":\"${GITEA_REF_NAME}\",\"name\":\"${GITEA_REF_NAME}\",\"body\":${BODY},\"draft\":false,\"prerelease\":false}")"
          http_code="$(echo "$response" | tail -1)"
          payload="$(echo "$response" | sed '$d')"
          echo "HTTP ${http_code}"
          if [ "$http_code" != "201" ]; then
            echo "Failed to create release: ${payload}"
            exit 1
          fi
          RELEASE_ID="$(echo "$payload" | python -c 'import json,sys; print(json.loads(sys.stdin.read())["id"])')"
          echo "Created release ID=${RELEASE_ID}"
          echo "release_id=${RELEASE_ID}" >> "$GITEA_OUTPUT"
      - name: Upload wheel and sdist assets
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
          GITEA_SERVER_URL: ${{ gitea.server_url }}
          GITEA_REPOSITORY: ${{ gitea.repository }}
          VERSION_NO_V: ${{ steps.version.outputs.version_no_v }}
          RELEASE_ID: ${{ steps.create.outputs.release_id }}
        run: |
          set -euo pipefail
          for ASSET in "volumen-${VERSION_NO_V}-py3-none-any.whl" \
                       "volumen-${VERSION_NO_V}.tar.gz"; do
            if [ ! -f "dist/${ASSET}" ]; then
              echo "Missing build artefact: dist/${ASSET}"
              exit 1
            fi
            http_code="$(curl -sS -o /dev/null -w '%{http_code}' \
              -H "Authorization: token ${GITEA_TOKEN}" \
              -H "Content-Type: application/octet-stream" \
              -X POST \
              --data-binary "@dist/${ASSET}" \
              "${GITEA_SERVER_URL}/api/v1/repos/${GITEA_REPOSITORY}/releases/${RELEASE_ID}/assets?name=${ASSET}")"
            echo "Uploaded ${ASSET}: HTTP ${http_code}"
            if [ "$http_code" != "201" ]; then
              echo "Failed to upload ${ASSET}"
              exit 1
            fi
          done
      - name: Publish to PyPI
        env:
          UV_PUBLISH_TOKEN: ${{ secrets.PYPI_TOKEN }}
        run: uv publish
@@ -0,0 +1,36 @@
 # Test — Python. Runs on push and pull request to development. Never on main.
 # The 80 % coverage gate lives in pyproject.toml (addopts --cov-fail-under=80),
 # so `uv run pytest` enforces it here exactly as it does locally.
 name: Test
 on:
  push:
    branches: [development]
  pull_request:
    branches: [development]
  merge_group:
 jobs:
  test:
    runs-on: fedora
    steps:
      - uses: actions/checkout@v7
      - name: Set up Python and uv
        uses: astral-sh/setup-uv@v6
        with:
          python-version: "3.14" # match requires-python in pyproject.toml
          enable-cache: true
          cache-dependency-glob: "uv.lock"
      - name: Install dependencies
        run: uv sync --frozen --group dev
      - name: Lint (ruff check)
        run: uv run ruff check src/ tests/
      - name: Format (ruff format --check)
        run: uv run ruff format --check src/ tests/
      - name: Tests (pytest)
        run: uv run pytest
@@ -1,18 +1,27 @@
-# Bundler
+# Python
-/.bundle/
+__pycache__/
-/vendor/bundle/
+*.pyc
-
+*.pyo
-# Built gems
+*.egg-info/
-/pkg/
+.venv/
-*.gem
+.pytest_cache/
 .ruff_cache/
 dist/
 # Test / coverage
 /coverage/
 /tmp/
 # mkdocs / Sphinx build output
 /site/
 /var/
 # Local development sandbox (posts, generated config)
 /.volumen/
 # Local dev config (contains password hash)
 /config.toml
 # Uploaded media in the dev content directory
 /posts/media/
@@ -1,32 +0,0 @@
 AllCops:
  TargetRubyVersion: 3.3
  NewCops: enable
  SuggestExtensions: false
 Style/StringLiterals:
  EnforcedStyle: double_quotes
 Style/StringLiteralsInInterpolation:
  EnforcedStyle: double_quotes
 Style/Documentation:
  Exclude:
    - "test/**/*"
    - "exe/**/*"
 Layout/LineLength:
  Max: 100
 Metrics/AbcSize:
  Max: 30
 Metrics/MethodLength:
  Max: 25
 Metrics/ClassLength:
  Max: 400
 Metrics/BlockLength:
  Exclude:
    - "test/**/*"
    - "volumen.gemspec"
@@ -5,6 +5,301 @@ All notable changes to **volumen** are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 > Versions ≤ 0.3.0 were implemented in Ruby. The current codebase is Python
 > (FastAPI). Earlier release notes are kept verbatim as historical record.
 ## [development]
 ## [0.4.1] — 2026-07-27
 ### Fixed
 - **CSP nonce chybí pro `style-src` v admin routách** — přidán `style-src 'self' 'nonce-{nonce}'` do CSP hlavičky pro `/admin` routy. Bez nonce prohlížeč blokoval všechny inline `<style>` tagy v admin šablonách.
 - **`web/static/` SVG soubory chybí v distribučním kole** — přidána sekce `[tool.setuptools.package-data]` do `pyproject.toml`, aby `volumen-icon.svg` a `volumen-logo.svg` byly součástí instalovaného wheelu. Admin panel dříve vracel 500 na `/admin/icon.svg` a `/admin/logo.svg`.
 ## [0.4.0] — 2026-07-26
 ### Added
 - **`volumen init`** — a new `init` subcommand is the *operational*
  bootstrap (config, data dirs, admin password, optional systemd unit). Run
  as root for a system install (default `--systemd`); pass `--local` for a
  per-user install (`~/.config/volumen/`, `~/.local/share/volumen/`). The
  command renders the production-hardened config from the same commented
  TOML template (`host = "::1"`, `env = "production"`, `trust_proxy = true`,
  `cookie_secure = true`), prompts for an admin password (`getpass`), hashes
  it via the existing scrypt helper, generates a 64-byte hex session key,
  creates the system user (`useradd --system`) and the `/etc/volumen/` /
  `/var/lib/volumen/` layout, and (with `--systemd`) installs a hardened
  `/etc/systemd/system/volumen.service` and runs
  `systemctl daemon-reload && systemctl enable --now`.
 - **PyPI publish metadata** — `pyproject.toml` gains `readme`, `keywords`,
  a complete `classifiers` array (Development Status, Framework :: FastAPI,
  supported Python versions, OS, Topic, Typing), and a `[project.urls]`
  block (Homepage, Repository, Issues, Changelog, Documentation). PyPI now
  renders the README on the project page and links back to sourcedock.dev.
 - **`volumen status`** — read-only inspection of an installation. Prints
  human output by default or `--json` for tooling; reports `config_exists`,
  `data_dir_exists`, `users_file_exists`, `password_hash_set`,
  `session_key_ok`, `systemd_unit_installed`, `service_active`,
  `admin_user_present`, and any issues found. Exit code is `1` when any
  issue is reported.
 - **`volumen check-update`** — compares the installed version (read via
  `importlib.metadata`) with the latest release on PyPI. Uses only
  `urllib.request` (stdlib, 5 s timeout); exit code is `0` up-to-date,
  `1` update available (suggests `uv tool upgrade volumen`), `2` PyPI
  unreachable / offline / malformed response. `--json` returns the same
  fields plus `checked_at` for cron-friendly alerting.
 - **`src/volumen/installer.py`** — a new module exposing `system_install`,
  `user_install`, `inspect`, plus the private `_mutate_config_text` helper
  used to apply line-anchored substitutions to the rendered TOML template
  (preserves comment blocks byte-for-byte).
 - **Tests** — `tests/test_installer.py` adds 15 tests covering both install
  flows, the config-template mutator, the systemd-unit rendering,
  idempotency / backup behaviour, the `inspect` round-trip, and the
  `--systemd` + `--local` CLI guard.
 ### Changed
 - **First-run setup is now `volumen init`** — replaces the legacy
  `install.sh`. The CLI subcommand renders config, creates data dirs,
  prompts for an admin password, generates a session key, and (with
  `--systemd`) installs and enables a hardened systemd unit. No bash
  required.
 - **Publishing now targets PyPI** — `release.yml` runs
  `uv publish --token "$PYPI_TOKEN"` after `python -m build` for `v*`
  tags. Wheel + sdist continue to be uploaded to sourcedock.dev Releases as a
  secondary mirror. End users get `uv tool install volumen` and
  `pipx install volumen` as the one-line install path; no checkout
  required.
 - **Distribution path is `uv tool install`** (or `pipx install`) — the
  CLI binary is installed globally; the operational bootstrap is delegated
  to `volumen init`. The legacy `uv sync` + project-local venv at
  `/opt/volumen/.venv` is gone.
 - **`Config.load` round-trips config-file `content_dir` / `users_file`** —
  the rendered template places these two keys after the `[server]` header,
  so TOML table folding puts them inside `[server]`. `Config.load` now
  hoists them to the root so files produced by `volumen init` (and any
  hand-edited config) round-trip through the canonical accessors without
  relying on CLI overrides.
 - **Migrated from Ruby to Python**: the runtime has been rewritten on top of
  FastAPI + Uvicorn, replacing Sinatra with FastAPI, kramdown with
  python-markdown + pymdown-extensions, Puma with Uvicorn, Bundler with uv,
  minitest with pytest, RuboCop with Ruff, and the TOML parser
  (`toml-rb`) with the standard library `tomllib` (plus `tomli-w` for
  round-tripping edits). The public API (`/api/volumen/*`) and the
  server-rendered admin (`/admin/*`) keep the same shape and HTTP semantics.
 - **Installer** — `install.sh` now bootstraps `uv` instead of Bundler, runs
  `uv sync --frozen` to provision `/opt/volumen/.venv`, and points the
  systemd `ExecStart` at the venv-resident `volumen` console script. The
  Python runtime is auto-installed on Fedora/openEuler; other distros get a
  heredoc with the equivalent `apt` / `pacman` / `zypper` / `apk` lines.
 - **CI** — Forgejo Actions moved to `setup-uv` + Ruff + pytest on a single
  Python 3.12 job (was: Ruby 3.3/3.4 matrix with Bundler, RuboCop, and
  `bundle exec rake test`). The release workflow builds wheel + sdist via
  `python -m build` and uploads them with the Forgejo Releases API.
 - **Migration guard** — new `.forgejo/workflows/migration-guard.yml` greps
  the tracked tree for Ruby-only terms (`bundle exec`, `RuboCop`, `Sinatra`,
  `Puma`, `kramdown`, `gem build`, `Volumen::`, `Rack::Session::Cookie`,
  `OpenSSL::KDF`, `lib/volumen/`) and fails the build if any of them leak
  back into production paths.
 - **Configuration** — `config.toml` gains six new keys surfaced in
  `config.toml.example`: `[server].env` (`"production"` enables strict
  startup), `[server].trust_proxy` (honour `X-Forwarded-Proto` from
  nginx), `[admin].min_password_length` (default `10`),
  `[admin].max_password_length` (default `1024`, caps scrypt work),
  `[admin].max_upload_bytes` (default `10485760`, 10 MB), and
  `[admin].cookie_secure` (default `false` in dev, set `true` behind
  HTTPS). See `docs/configuration.md` for the full schema.
 - **Default bind address** — the installer and `config.toml.example`
  default to `host = "::"` (IPv6 with automatic IPv4 fallback) so the
  service is reachable on both stacks out of the box. Bind to `"::1"`
  when running behind a reverse proxy.
 - **Test client now uses `httpx2`** — dev dependencies replace
  `httpx>=0.28` with `httpx2>=2.7` (the actively maintained fork by
  Pydantic). Starlette 1.3.x prefers `httpx2` in `TestClient` and emits
  `StarletteDeprecationWarning` when only legacy `httpx` is installed;
  shipping `httpx2` keeps the test suite warning-free. The legacy
  `httpx` package is still pulled in via `fastapi[standard]` for the
  `fastapi` CLI and remains API-compatible. The unused
  `ignore::DeprecationWarning:starlette.testclient` filter is removed
  from `[tool.pytest.ini_options]` (it targeted the wrong warning
  class and never matched).
 ### Removed
 - `install.sh` — the bash installer is deleted. Use `uv tool install
  volumen` (or `pipx install volumen`) followed by `volumen init`.
 - `pkg/` build output and `volumen.gem` (Ruby gem packaging is gone; the
  project now ships as a wheel + sdist built with `python -m build`).
 - `Gemfile`, `volumen.gemspec`, `Rakefile`, `.rubocop.yml` and the
  Sinatra-era `lib/` tree.
 - `.editorconfig` — Ruff (`pyproject.toml`'s `[tool.ruff]`) is the single
  source of truth for Python formatting; modern editors default to UTF-8,
  LF, and a trailing newline. Markdown files in this repo use blank lines
  between paragraphs (no `  \n` line-break idiom), so trimming trailing
  whitespace is safe.
 ### Security
 - **scrypt password hashing** now uses `hashlib.scrypt` and constant-time
  verification via `secrets.compare_digest` (was: Ruby's `OpenSSL::KDF`).
 - **Session cookies** are signed by Starlette's `SessionMiddleware`
  (`itsdangerous`) with `HttpOnly` and `SameSite=Strict`; `Secure` is added
  by `SecureCookieMiddleware` when the request was forwarded over HTTPS
  (only when `[server].trust_proxy = true`).
 - **CSRF tokens** are generated with `secrets.token_hex(32)` and verified
  with `secrets.compare_digest` on every state-changing admin POST.
 - **Markdown sanitisation policy** — the renderer still passes inline HTML
  through (authors are the trusted admin); document the trust model
  explicitly in `docs/security.md` so deployments that ingest untrusted
  content know to add a sanitiser.
 > Note: refine the Security bullets above once the Python agent confirms the
 > final cryptographic controls (e.g. whether `image/*` upload signatures get
 > re-validated server-side and whether the CSRF token is rotated on login).
 ## [0.3.0] — 2026-07-12
 ### Added
 **Content & authoring**
 - **Fediverse attribution:** a `fediverse_creator` frontmatter field (e.g.
  `@user@mastodon.social`) plus a site-wide `[site].fediverse_creator` default
  in `config.toml`. The value is exposed as `fediverse_creator` on the site
  and post payloads, rendered as `<dc:creator>` in the RSS feed, as
  `authors[].name` in the JSON feed, and can be consumed by a front-end to
  emit `<meta name="fediverse:creator">` on rendered pages. Per-post values
  override the site default.
 - **Cover caption:** a `cover_caption` post field rendered next to the cover
  image so authors can credit photos or add a short blurb.
 - **Titled images as `<figure>`:** Markdown images with a title
  (`![alt](url "caption")`) are wrapped in a `<figure>` with a `<figcaption>`
  and a small `i` info icon. Images without a title render exactly as before.
 **Public API**
 - `has_next` and `has_prev` boolean flags in the paginated
  `/api/volumen/posts` response so clients can navigate pages without
  computing boundaries themselves.
 - Distinct `"draft"` error code in `/api/volumen/posts/:slug` when the post
  exists but is a draft, replacing the generic `"not_found"`.
 **Admin**
 - **Modern admin UI:** redesigned layout with a sticky top bar, breadcrumbs
  on every page, and a unified design language across login, post list,
  post form, and settings.
 - **Volumen icon:** a dedicated SVG icon shown in the sidebar and on the
  login page (served at `/admin/icon.svg`).
 - **Version in sidebar footer** so admins always see which release is
  running.
 - **Per-user display name** on the user record and admin header.
 - **Per-user fediverse handle** editable from the settings page (independent
  of the post-level `fediverse_creator`).
 - **Profile photo upload:** each admin user can upload a WebP/AVIF avatar
  that is stored alongside posts in the content directory and shown in the
  settings page.
 - **Tabbed settings page** separating account, profile, and admin sections.
 - **Restricted uploads:** only WebP (`image/webp`) and AVIF (`image/avif`)
  are accepted, with a 415 error message that points users to `cwebp` /
  `avifenc` for conversion. Reflects the engine's WebP/AVIF-only posture
  end-to-end.
 - **Polished native inputs** for `<input type="date|time|file">` so they
  match the rest of the admin's design language.
 **Tooling**
 - `just lint` recipe for standalone RuboCop checks and `just fmt` for
  auto-fixing lint issues.
 - `config.toml.example` template for local development; `config.toml` is
  now gitignored.
 ### Changed
 - Memoize `published_posts` within a single request so repeated calls
  (posts list, tags, feeds, sitemap) reuse the cached result.
 - `Store#all` cache now invalidates on individual file mtime changes, not
  just on the content directory mtime. Manual edits and `git pull` are
  detected without a restart.
 - `Cache-Control: public, max-age=60` header on all public API responses
  for browser and CDN caching.
 - Extract feed and sitemap generation into a dedicated `FeedHelpers` module,
  reducing `Server` from ~500 to ~420 lines.
 ### Fixed
 - Admin post save/delete now correctly clears the in-memory posts cache, so
  the post list reflects edits without a manual reload.
 - The post form's date field defaults to today when the underlying post has
  no date, preventing the picker from showing an invalid empty value.
 ### Security
 - **Content-Security-Policy** header on all `/admin/*` responses:
  `default-src 'self'`, `script-src 'self' 'unsafe-inline'`,
  `style-src 'self' 'unsafe-inline'`, `img-src 'self' data:`,
  `font-src 'self'`, `connect-src 'self'`, `form-action 'self'`,
  `frame-ancestors 'none'`.
 - File uploads are rejected (HTTP 413) when exceeding **10 MB**
  (`MAX_UPLOAD_BYTES`).
 - File uploads are restricted to `image/webp` and `image/avif`
  (`ALLOWED_UPLOAD_TYPES`). Anything else is rejected with a 415 and a
  conversion hint.
 ## [0.2.0] — 2026-06-25
 ### Added
 - `<pubDate>` in RSS feed items, derived from the post date.
 - `<lastmod>` in sitemap entries for SEO.
 - In-memory rate limiting on the login endpoint: 10 attempts per 60 seconds per IP.
 - `<language>` element in the RSS feed channel.
 - Periodic cleanup of stale `login_attempts` entries to prevent unbounded memory growth.
 - Slug format validation (`[a-z0-9._-]`) preventing path traversal and XSS in templates.
 - Username validation in `change_username` matching the create-user regex.
 - Escape-on-output for slug and username in admin template attributes.
 - Memoization of `Store#all` with mtime-based invalidation, eliminating N×read+parse
  per request.
 - Atomic file writes (tmp + rename) for posts and `users.toml`.
 - Post language directory routing: non-default-language posts now land in
  `content_dir/<lang>/` instead of overwriting root-level files.
 - CLI test coverage (version, help, unknown command, option parsing, config bootstrap).
 - Test coverage for RSS feed and sitemap endpoints.
 - CORS preflight (`OPTIONS /api/volumen/*`) so browsers can reach the JSON API.
 - `Users#all` memoization with mtime-based invalidation, matching Store#all.
 - Session invalidation: deleted users can no longer use existing session cookies.
 - CSRF protection on `POST /admin/preview`.
 - Symlink-safe containment in `Store#media_file` via `File.realpath`.
 ### Added
 - **Scheduled publishing:** a `publish_at` frontmatter field hides posts from the
  public API and feeds until their publication date arrives. The admin form
  includes a Publish at date picker.
 - **JSON Feed:** `GET /api/volumen/feed.json` serves a jsonfeed.org v1.1 feed
  with `content_html` and `date_published` per item.
 - **Fulltext search:** `GET /api/volumen/posts?q=…` filters posts by
  case-insensitive match in title and body.
 ### Changed
 - Split `lib/volumen/server.rb` into `api_routes.rb` and `admin_routes.rb` modules,
  keeping the server class focused on configuration and shared helpers.
 ### Fixed
 - `admin.session_ttl` was defined but never read; it now controls
  `Rack::Session::Cookie` expiration via `expire_after`.
 - Derived post excerpts now strip HTML tags before stripping markdown markup,
  avoiding raw HTML leaks in auto-generated excerpts.
 - Draft posts no longer leak through the public detail endpoint (`/api/volumen/posts/:slug`).
 - `Config::DEFAULTS` inner hashes are now frozen and `deep_merge` builds fresh
  copies, preventing mutation from silently poisoning later `Config.load` calls.
 - A warning is emitted when `admin.session_key` is configured but shorter than
  64 bytes, instead of silently falling back to a random secret.
 ## [0.1.0] — 2026-06-20
 First public release: a small, file-based Markdown blog engine in CRuby. Posts
@@ -93,4 +388,7 @@ admin — no database, no external services.
 - Configurable, stable `session_key` so sessions survive restarts.
 - Generic login error message to avoid username enumeration.
-[0.1.0]: https://codeberg.org/petrbalvin/volumen/releases/tag/v0.1.0
+[0.1.0]: https://sourcedock.dev/petrbalvin/volumen/releases/tag/v0.1.0
 [0.2.0]: https://sourcedock.dev/petrbalvin/volumen/releases/tag/v0.2.0
 [0.3.0]: https://sourcedock.dev/petrbalvin/volumen/releases/tag/v0.3.0
 [0.4.0]: https://sourcedock.dev/petrbalvin/volumen/releases/tag/v0.4.0
@@ -1,16 +1,20 @@
 # Contributing
 Thank you for considering contributing to **volumen** — a small, file-based
-Markdown blog engine written in CRuby, with a built-in admin and a public JSON
+Markdown blog engine written in Python, with a built-in admin and a public
-API.
+JSON API.
 ## Development Setup
 ### Requirements
- **Ruby ≥ 3.3** with a C toolchain (Puma compiles a native extension).
+- **Python ≥ 3.14** with the `venv` module (the venv itself is managed by
-  - Fedora: `sudo dnf install ruby ruby-devel @development-tools openssl-devel`
+  `uv`).
-  - Debian/Ubuntu: `sudo apt install ruby-full build-essential libssl-dev`
+  - Fedora: `sudo dnf install python3.14 python3-virtualenv`
  - Debian/Ubuntu: `sudo apt install python3.14 python3-venv python3-pip`
 - **[`uv`](https://docs.astral.sh/uv/)** — the package manager. The project
  pins every dependency (including transitive ones) in `uv.lock`; install with
  `curl -LsSf https://astral.sh/uv/install.sh | sh` (or via your distro).
 - [`just`](https://github.com/casey/just) — the `justfile` is the source of
  truth for install / run / build / test / uninstall.
 - Linux, macOS, or FreeBSD.
@@ -18,11 +22,11 @@ API.
 ### Quick Start
 ```bash
-git clone https://codeberg.org/petrbalvin/volumen.git
+git clone https://sourcedock.dev/petrbalvin/volumen.git
 cd volumen
-just install        # bundle install
+just install        # uv sync
-just test           # bundle exec rake test (minitest)
+just test           # uv run pytest
-just build          # rubocop (zero warnings) + gem build → pkg/volumen.gem
+just build          # ruff check + ruff format --check (zero warnings)
 just dev            # run against ./posts and ./config.toml on :9090
 ```
@@ -31,7 +35,9 @@ admin password is `admin` (the hash lives in `./config.toml`). Open
 <http://localhost:9090/admin/>.
 For a fresh `serve` (without `--config`), the first run writes a commented
-template to `/etc/volumen/config.toml`; see [`docs/deployment.md`](docs/deployment.md).
+template to `/etc/volumen/config.toml`; see [`docs/deployment.md`](docs/deployment.md)
 for the full production bootstrap (`uv tool install volumen && sudo volumen
 init`).
 ### Running Tests
@@ -39,49 +45,51 @@ template to `/etc/volumen/config.toml`; see [`docs/deployment.md`](docs/deployme
 just test
 ```
-The minitest suite (`test/`) covers:
+The pytest suite (`tests/`) covers:
 - `frontmatter` — `+++` TOML block parse/serialise round-trips.
 - `post` / `store` — the Post model, reading/writing posts and media.
- `markdown` — GFM rendering (tables, fenced code).
+- `markdown` — GFM-ish rendering (tables, fenced code, `<figure>`).
 - `config` — defaults, overrides, template generation.
 - `password` / `users` — scrypt hashing, roles, last-admin safeguards.
- `server` / `admin` — the JSON API and the admin (auth, CSRF, CRUD, uploads,
+- `server` / `admin` — the JSON API and the admin (auth, CSRF, CRUD,
-  roles) via `rack-test`.
+  uploads, roles) via `httpx.AsyncClient` against the FastAPI app.
 ### Linting
-RuboCop is the source of truth for style (`.rubocop.yml`). The project enforces
+Ruff is the source of truth for style (settings in `pyproject.toml`,
-**zero offenses**:
+`[tool.ruff]`, `[tool.ruff.lint]`). The project enforces **zero warnings**:
 ```bash
-bundle exec rubocop        # check (also run as part of `just build`)
+just build          # ruff check + ruff format --check
-bundle exec rubocop -A     # autocorrect
+just fmt            # ruff format + ruff check --fix (autocorrect)
 ```
 `just build` is what CI runs; both steps must exit 0 with no diff in
 `--check` mode.
 ## Code Style
- Idiomatic Ruby; let RuboCop guide you. CI fails on any offense.
+- Idiomatic Python 3.14+; let Ruff guide you. CI fails on any warning.
- **Two-space** indentation, **double quotes**, and `# frozen_string_literal: true`
+- **4-space** indentation, **double quotes**, lines `≤ 100` characters (set
-  at the top of every Ruby file.
+  in `[tool.ruff]`).
- Document every class/module with a short comment (`Style/Documentation` is on).
+- Type hints on every public function signature; `from __future__ import
- Keep lines ≤ 100 characters (`Layout/LineLength`).
+  annotations` at the top of every module.
- Prefer guard clauses; return `nil`/objects for expected "not found" cases
+- Prefer the standard library. New runtime dependencies belong in
-  rather than raising.
+  `pyproject.toml`'s `dependencies` array and should be discussed in an
- Keep the dependency set small and deliberate — runtime gems are `sinatra`,
+  issue first.
-  `kramdown` (+ `kramdown-parser-gfm`), `toml-rb`, `puma`, `rackup`. Crypto uses
+- Prefer `httpx` for HTTP tests; never start a real network server in tests.
  the standard library (`openssl`, `securerandom`). New runtime dependencies
  should be discussed in an issue first.
 - Admin content is authored by trusted users; see [`docs/security.md`](docs/security.md)
  for the trust model before touching rendering or uploads.
 ### Testing
- Put tests in `test/*_test.rb`, each starting with `require "test_helper"`.
+- Put tests in `tests/test_*.py`; use `pytest` fixtures (see
- Use `Dir.mktmpdir` for anything touching the filesystem; never assume a clean
+  `tests/conftest.py`) for the temp content directory and the FastAPI app.
-  working directory.
+- Exercise the HTTP layer with `httpx.AsyncClient` driving the FastAPI app
- Exercise the HTTP layer with `Rack::Test` (`Volumen::Server.configured(...)`).
+  via `app=` in the `AsyncClient` constructor.
- Name tests `test_<thing>_<scenario>`; cover both the happy and the error path.
+- Name tests `test_<thing>_<scenario>`; cover both the happy and the error
  path.
 ## Commit Conventions
@@ -101,11 +109,11 @@ We follow [Conventional Commits](https://www.conventionalcommits.org/).
 ```
 feat: add author role with last-admin safeguards
-fix: rename Server.build to .configured to avoid a Sinatra clash
+fix: rename create_app to factory to avoid a FastAPI clash
 refactor: extract frontmatter parsing into its own module
 docs: document the dual-mode editor
 test: cover GFM table and fenced code rendering
-chore: pin gem versions to latest
+chore: pin Python dependencies to latest
 ```
 - English, lowercase subject, imperative mood (`add`, not `added`).
@@ -116,15 +124,19 @@ chore: pin gem versions to latest
 1. Create a feature branch from `development`.
 2. Make your changes with Conventional-Commits messages.
-3. Ensure `bundle exec rubocop` reports zero offenses and `just test` passes.
+3. Record your changes under the `## [development]` section at the top of
-4. Add or update tests for your change.
+   `CHANGELOG.md`, using the Keep a Changelog categories (`Added`, `Changed`,
-5. Update documentation if the public API, configuration, or behaviour changes:
+   `Fixed`, `Removed`, `Security`).
 4. Ensure `just build` reports zero warnings and `just test` passes.
 5. Add or update tests for your change.
 6. Update documentation if the public API, configuration, or behaviour
   changes:
   - `README.md` — high-level overview.
   - `docs/configuration.md` — config keys.
   - `docs/api-reference.md` — JSON API behaviour.
   - `docs/architecture.md` — structural changes.
   - `docs/security.md` — anything touching auth, uploads, or rendering.
-6. Open a pull request against `development`. Releases are cut by merging
+7. Open a pull request against `development`. Releases are cut by merging
   `development` into `main` and pushing a `vX.Y.Z` tag — see
   [Cutting a release](#cutting-a-release).
@@ -133,29 +145,32 @@ chore: pin gem versions to latest
 ```
 volumen/
 ├── exe/
-│   └── volumen            # CLI: serve, hash-password, version, help
+│   └── volumen            # thin shim: from volumen.cli import main
-├── lib/
+├── src/
 │   ├── volumen.rb         # library entry (requires the core modules)
 │   └── volumen/
-│       ├── version.rb
+│       ├── __init__.py    # VERSION + login-attempt limiter
-│       ├── frontmatter.rb # parse/serialise the +++ TOML frontmatter block
+│       ├── cli.py         # argparse entry point: serve, hash-password, version
-│       ├── markdown.rb    # kramdown (GFM) → HTML
+│       ├── config.py      # tomllib loader + deep-merge defaults
-│       ├── post.rb        # Post model (metadata + body + rendered HTML)
+│       ├── frontmatter.py # parse/serialise the +++ TOML frontmatter block
-│       ├── store.rb       # read/write posts and media on disk
+│       ├── markdown.py    # python-markdown + pymdown-extensions
-│       ├── config.rb      # load/merge config.toml, generate template
+│       ├── post.py        # Post model (metadata + body + rendered HTML)
-│       ├── password.rb    # scrypt hashing/verification (OpenSSL::KDF)
+│       ├── store.py       # read/write posts and media on disk (mtime-cached)
-│       ├── users.rb       # users.toml, admin/author roles
+│       ├── password.py    # scrypt hashing/verification (hashlib + secrets)
-│       ├── server.rb      # Sinatra app: public API + admin
+│       ├── users.py       # users.toml + admin/author roles
-│       ├── cli.rb         # command dispatcher
+│       ├── feed_helpers.py # RSS / JSON Feed / sitemap generation
 │       ├── api_routes.py  # /api/volumen/* (FastAPI router)
 │       ├── admin_routes.py # /admin/* + /media/* (FastAPI router)
 │       ├── server.py      # FastAPI app factory, middleware, dependencies
 │       └── web/
-│           ├── views/     # ERB templates (layout, login, list, form, settings)
+│           ├── templates/ # Jinja2 templates (layout, login, list, form, settings)
-│           └── public/    # static assets (volumen-logo.svg)
+│           └── static/    # static assets (volumen-logo.svg, volumen-icon.svg)
-├── test/                  # minitest suite
+├── tests/                 # pytest suite
 ├── docs/                  # architecture, configuration, api-reference, deployment, security
-├── .forgejo/workflows/    # test.yml, release.yml (Forgejo Actions)
+- `.gitea/workflows/`    # test.yml, release.yml, migration-guard.yml (Gitea Actions)
-├── justfile               # install, run, dev, build, test, uninstall
+├── justfile               # install, run, dev, lint, fmt, build, test, uninstall
-├── volumen.gemspec
+├── pyproject.toml         # PEP 621 metadata + dependencies + tool config
-├── Gemfile
+├── uv.lock                # locked dependency graph
 ├── config.toml.example    # bootstrap config template
 ├── CHANGELOG.md
 └── LICENSE
 ```
@@ -166,19 +181,24 @@ volumen/
 graph TD
    Browser[Browser / Vue SPA]
    Nginx[nginx reverse proxy]
-    Server[Volumen::Server -- Sinatra]
+    App[FastAPI app -- Uvicorn]
-    Store[Volumen::Store]
+    ApiR[api_routes.py]
-    Markdown[Volumen::Markdown -- kramdown GFM]
+    AdminR[admin_routes.py + CSRF + CSP]
-    Users[Volumen::Users]
+    Store[Store]
    Markdown[Markdown renderer -- python-markdown]
    Users[Users]
    Posts[(content_dir/*.md)]
    UsersFile[(users.toml)]
    Browser -->|GET /api/volumen/*| Nginx
    Browser -->|/admin| Nginx
-    Nginx --> Server
+    Nginx --> App
-    Server -->|read/write posts| Store
+    App --> ApiR
-    Server -->|render Markdown| Markdown
+    App --> AdminR
-    Server -->|auth + roles| Users
+    ApiR --> Store
    ApiR --> Markdown
    AdminR --> Store
    AdminR --> Users
    Store --> Posts
    Users --> UsersFile
 ```
@@ -186,72 +206,108 @@ graph TD
 ### Key Design Decisions
 - **File-based, no database** — every post is a `.md` file with TOML
-  frontmatter; users live in a `users.toml`. Everything is plain text, safe to
+  frontmatter; users live in a `users.toml`. Everything is plain text,
-  commit and back up.
+  safe to commit and back up.
- **Headless for the front-end** — volumen serves a read-only JSON API and its
+- **Headless for the front-end** — volumen serves a read-only JSON API
-  own server-rendered admin; the public site is a separate consumer.
+  and its own server-rendered admin; the public site is a separate
- **Single universal gem** — volumen is pure Ruby, so `gem build` produces one
+  consumer.
-  platform-independent gem. Only the `puma` dependency has a native extension,
+- **Standard library first** — TOML parsing uses `tomllib` (3.11+), scrypt
-  compiled at install time on the host.
+  uses `hashlib.scrypt`, constant-time compares use `secrets.compare_digest`.
- **Trusted authors** — kramdown passes raw HTML through on purpose; content is
+  No runtime TOML or crypto dependency is required.
-  only as safe as who can log in (see `docs/security.md`).
+- **Trusted authors** — python-markdown passes raw HTML through on
- **Roles, server-enforced** — `admin` manages users, `author` manages posts
+  purpose; content is only as safe as who can log in (see
-  and their own account; `require_admin!` gates user management on the server,
+  `docs/security.md`).
-  with last-admin safeguards.
+- **Roles, server-enforced** — `admin` manages users, `author` manages
  posts and their own account; `require_admin` (a FastAPI dependency)
  gates user management on the server, with last-admin safeguards.
 - **IPv6-first** — the default bind address is `::`; bind to `::1` when
  behind nginx.
 ## CI
-volumen uses **Forgejo Actions**; both workflows live under `.forgejo/workflows/`
+volumen uses **Gitea Actions**; the workflows live under
-and run on the `codeberg-small` runner.
+`.gitea/workflows/` and run on the `fedora:latest` runner.
-### Test — `.forgejo/workflows/test.yml`
+### Test — `.gitea/workflows/test.yml`
 Triggered on push and pull requests targeting `development`.
-| Job    | What it does                                  |
+| Step | What it does |
-|--------|-----------------------------------------------|
+|------|--------------|
-| `lint` | `bundle exec rubocop` (must report zero offenses) |
+| Set up Python and uv | `astral-sh/setup-uv` with Python 3.14 |
-| `test` | `bundle exec rake test` on a Ruby `3.3` / `3.4` matrix |
+| Install dependencies | `uv sync --frozen --group dev` |
 | Lint | `uv run ruff check src/ tests/` |
 | Format | `uv run ruff format --check src/ tests/` |
 | Tests | `uv run pytest` |
 Run the same locally before opening a PR:
 ```bash
-bundle exec rubocop
+just build
 just test
 ```
-### Release — `.forgejo/workflows/release.yml`
+### Release — `.gitea/workflows/release.yml`
-Triggered by pushing a `v*` tag. It verifies the tag matches `Volumen::VERSION`,
+Triggered by pushing a `v*` tag. It verifies the tag matches the version
-runs the quality gate (rubocop + tests), builds `volumen-X.Y.Z.gem`, extracts
+in `pyproject.toml`, runs the quality gate, builds the wheel and sdist
-the matching `CHANGELOG.md` section, creates a Forgejo release via the REST API,
+with `python -m build`, extracts the matching `CHANGELOG.md` section,
-and attaches the gem. It does **not** publish to RubyGems.
+creates a Gitea release via the REST API, uploads both artefacts, and
 publishes them to PyPI via `uv publish`.
-Requires a `FORGEJO_TOKEN` secret with permission to create releases.
+The auto-generated `${{ secrets.GITEA_TOKEN }}` is used to create the release
 (via the REST API). Only one secret is required: a `PYPI_TOKEN`
 (project-scoped upload token from
 <https://pypi.org/manage/account/publishing/>).
 ### Migration guard — `.gitea/workflows/migration-guard.yml`
 A grep guard that fails the build if any of the Ruby-only strings
 (`bundle exec`, `RuboCop`, `Sinatra`, `Puma`, `kramdown`, `gem build`,
 `Volumen::`, `Rack::Session::Cookie`, `OpenSSL::KDF`, `lib/volumen/`)
 appear in tracked files other than the explicitly allow-listed
 `CHANGELOG.md` and the guard workflow itself.
 ### Cutting a release
-1. Bump `VERSION` in `lib/volumen/version.rb`.
+1. Bump `version` under `[project]` in `pyproject.toml`.
-2. Add a `## [X.Y.Z] — YYYY-MM-DD` section at the top of `CHANGELOG.md`.
+2. Rename `## [development]` to `## [X.Y.Z] — YYYY-MM-DD` at the top of
   `CHANGELOG.md`, and add a fresh empty `## [development]` section
   above it.
 3. Ensure CI is green on `development`.
-4. Merge `development` into `main` (the only time `main` changes outside a tag).
+4. Merge `development` into `main` (the only time `main` changes outside
   a tag).
 5. Tag and push:
   ```bash
   git tag -a vX.Y.Z -m "volumen vX.Y.Z"
   git push origin main
   git push origin vX.Y.Z
   ```
-6. The release workflow builds the gem and publishes the release from the
+6. The release workflow builds the wheel + sdist, publishes them to
-   CHANGELOG section.
+   sourcedock.dev Releases **and** to PyPI (`uv publish --token "$PYPI_TOKEN"`).
 #### PyPI publishing token
 A PyPI API token must be configured in
 `Settings → Secrets and Variables → Actions` of the sourcedock.dev repository
 under the name `PYPI_TOKEN`. Create a **project-scoped token** at
 <https://pypi.org/manage/account/publishing/> (scoped to `volumen`)
 rather than a global account token. Rotate the token at least yearly.
 The token must have the `upload` scope for the project.
 For local dry-runs and ad-hoc uploads, use the same token via the
 `UV_PUBLISH_TOKEN` env var or `uv publish --token "$PYPI_TOKEN"`. Never
 commit it.
 ## Report a Bug
-Open an issue at <https://codeberg.org/petrbalvin/volumen/issues> with:
+Open an issue at <https://sourcedock.dev/petrbalvin/volumen/issues>
- volumen version (`volumen version`).
+- volumen version (`uv run volumen version`).
 - Operating system and architecture.
 - Exact steps (request or admin action) that reproduce it.
- Expected vs actual behaviour, and the relevant slice of `journalctl -u volumen`.
+- Expected vs actual behaviour, and the relevant slice of
  `journalctl -u volumen`.
-For **security issues**, please email **opensource@petrbalvin.org** rather than
+For **security issues**, please email **opensource@petrbalvin.org** rather
-opening a public issue.
+than opening a public issue.
@@ -1,13 +0,0 @@
 # frozen_string_literal: true
 source "https://rubygems.org"
 # Runtime dependencies are declared in the gemspec.
 gemspec
 group :development, :test do
  gem "minitest", "~> 6.0"
  gem "rack-test", "~> 2.2"
  gem "rake", "~> 13.4"
  gem "rubocop", "~> 1.88", require: false
 end
@@ -1,136 +0,0 @@
 PATH
  remote: .
  specs:
    volumen (0.1.0)
      kramdown (~> 2.5)
      kramdown-parser-gfm (~> 1.1)
      puma (~> 8.0)
      rackup (~> 2.3)
      sinatra (~> 4.2)
      toml-rb (~> 4.2)
 GEM
  remote: https://rubygems.org/
  specs:
    ast (2.4.3)
    base64 (0.3.0)
    citrus (3.0.2)
    drb (2.2.3)
    json (2.19.9)
    kramdown (2.5.2)
      rexml (>= 3.4.4)
    kramdown-parser-gfm (1.1.0)
      kramdown (~> 2.0)
    language_server-protocol (3.17.0.5)
    lint_roller (1.1.0)
    logger (1.7.0)
    minitest (6.0.6)
      drb (~> 2.0)
      prism (~> 1.5)
    mustermann (3.1.1)
    nio4r (2.7.5)
    parallel (2.1.0)
    parser (3.3.11.1)
      ast (~> 2.4.1)
      racc
    prism (1.9.0)
    puma (8.0.2)
      nio4r (~> 2.0)
    racc (1.8.1)
    rack (3.2.6)
    rack-protection (4.2.1)
      base64 (>= 0.1.0)
      logger (>= 1.6.0)
      rack (>= 3.0.0, < 4)
    rack-session (2.1.2)
      base64 (>= 0.1.0)
      rack (>= 3.0.0)
    rack-test (2.2.0)
      rack (>= 1.3)
    rackup (2.3.1)
      rack (>= 3)
    rainbow (3.1.1)
    rake (13.4.2)
    regexp_parser (2.12.0)
    rexml (3.4.4)
    rubocop (1.88.0)
      json (~> 2.3)
      language_server-protocol (~> 3.17.0.2)
      lint_roller (~> 1.1.0)
      parallel (>= 1.10)
      parser (>= 3.3.0.2)
      rainbow (>= 2.2.2, < 4.0)
      regexp_parser (>= 2.9.3, < 3.0)
      rubocop-ast (>= 1.49.0, < 2.0)
      ruby-progressbar (~> 1.7)
      unicode-display_width (>= 2.4.0, < 4.0)
    rubocop-ast (1.49.1)
      parser (>= 3.3.7.2)
      prism (~> 1.7)
    ruby-progressbar (1.13.0)
    sinatra (4.2.1)
      logger (>= 1.6.0)
      mustermann (~> 3.0)
      rack (>= 3.0.0, < 4)
      rack-protection (= 4.2.1)
      rack-session (>= 2.0.0, < 3)
      tilt (~> 2.0)
    tilt (2.7.0)
    toml-rb (4.2.0)
      citrus (~> 3.0, > 3.0)
      racc (~> 1.7)
    unicode-display_width (3.2.0)
      unicode-emoji (~> 4.1)
    unicode-emoji (4.2.0)
 PLATFORMS
  ruby
  x86_64-linux
 DEPENDENCIES
  minitest (~> 6.0)
  rack-test (~> 2.2)
  rake (~> 13.4)
  rubocop (~> 1.88)
  volumen!
 CHECKSUMS
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  base64 (0.3.0) sha256=27337aeabad6ffae05c265c450490628ef3ebd4b67be58257393227588f5a97b
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  kramdown (2.5.2) sha256=1ba542204c66b6f9111ff00dcc26075b95b220b07f2905d8261740c82f7f02fa
  kramdown-parser-gfm (1.1.0) sha256=fb39745516427d2988543bf01fc4cf0ab1149476382393e0e9c48592f6581729
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  lint_roller (1.1.0) sha256=2c0c845b632a7d172cb849cc90c1bce937a28c5c8ccccb50dfd46a485003cc87
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  prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
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  racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
  rack (3.2.6) sha256=5ed78e1f73b2e25679bec7d45ee2d4483cc4146eb1be0264fc4d94cb5ef212c2
  rack-protection (4.2.1) sha256=cf6e2842df8c55f5e4d1a4be015e603e19e9bc3a7178bae58949ccbb58558bac
  rack-session (2.1.2) sha256=595434f8c0c3473ae7d7ac56ecda6cc6dfd9d37c0b2b5255330aa1576967ffe8
  rack-test (2.2.0) sha256=005a36692c306ac0b4a9350355ee080fd09ddef1148a5f8b2ac636c720f5c463
  rackup (2.3.1) sha256=6c79c26753778e90983761d677a48937ee3192b3ffef6bc963c0950f94688868
  rainbow (3.1.1) sha256=039491aa3a89f42efa1d6dec2fc4e62ede96eb6acd95e52f1ad581182b79bc6a
  rake (13.4.2) sha256=cb825b2bd5f1f8e91ca37bddb4b9aaf345551b4731da62949be002fa89283701
  regexp_parser (2.12.0) sha256=35a916a1d63190ab5c9009457136ae5f3c0c7512d60291d0d1378ba18ce08ebb
  rexml (3.4.4) sha256=19e0a2c3425dfbf2d4fc1189747bdb2f849b6c5e74180401b15734bc97b5d142
  rubocop (1.88.0) sha256=e420ddf1662d0ef34bc8a2910ac4b396a7ddda0b51a708264405241734b08e0b
  rubocop-ast (1.49.1) sha256=4412f3ee70f6fe4546cc489548e0f6fcf76cafcfa80fa03af67098ffed755035
  ruby-progressbar (1.13.0) sha256=80fc9c47a9b640d6834e0dc7b3c94c9df37f08cb072b7761e4a71e22cff29b33
  sinatra (4.2.1) sha256=b7aeb9b11d046b552972ade834f1f9be98b185fa8444480688e3627625377080
  tilt (2.7.0) sha256=0d5b9ba69f6a36490c64b0eee9f6e9aad517e20dcc848800a06eb116f08c6ab3
  toml-rb (4.2.0) sha256=10a48c91613e20cf63483a7a776767dfb3cd7d70e9327c0237443da601e13776
  unicode-display_width (3.2.0) sha256=0cdd96b5681a5949cdbc2c55e7b420facae74c4aaf9a9815eee1087cb1853c42
  unicode-emoji (4.2.0) sha256=519e69150f75652e40bf736106cfbc8f0f73aa3fb6a65afe62fefa7f80b0f80f
  volumen (0.1.0)
 BUNDLED WITH
  4.0.10
@@ -1,6 +1,6 @@
 # volumen — file-based Markdown blog engine
-**volumen** is a small, dependency-light blog engine written in **Ruby**. It
+**volumen** is a small, dependency-light blog engine written in **Python**. It
 serves your Markdown posts as a JSON API and includes a built-in, server-
 rendered admin with both a Markdown source editor and a visual editor — so any
 front-end (Vue, React, Svelte, plain HTML) can consume your content without
@@ -10,26 +10,33 @@ It is designed to be:
 - **File-based** — every post is a plain `.md` file with TOML frontmatter, safe
  to commit to Git and edit in your favourite editor.
- **Self-contained** — runs as a single Ruby process; no Node build step is
+- **Self-contained** — runs as a single Python process (Uvicorn); no Node
-  required to operate the engine or its admin.
+  build step is required to operate the engine or its admin.
 - **Multi-user with roles** — username + password login; **admin** (full
  access, manages users) and **author** (posts and own account) roles.
 - **Multi-site friendly** — one instance per blog, configurable per instance.
 - **Markdown-first** — the visual editor round-trips through the same renderer
  that powers the public API, so what you store is always Markdown.
 - **IPv6-first** — the default bind address is `::` (IPv6 with automatic IPv4
  fallback); bind to `::1` when running behind nginx so the admin port is not
  exposed to the network.
 ---
 ## Stack
-| Concern        | Choice                                   |
+| Concern        | Choice                                                                 |
-|----------------|------------------------------------------|
+|----------------|------------------------------------------------------------------------|
-| Language       | CRuby (≥ 3.2)                            |
+| Language       | Python 3.14+                                                           |
-| Web framework  | [Sinatra](https://sinatrarb.com)         |
+| Web framework  | [FastAPI](https://fastapi.tiangolo.com/)                               |
-| Markdown       | [kramdown](https://kramdown.gettalong.org) |
+| App server     | [Uvicorn](https://www.uvicorn.org/) (via `fastapi[standard]`)          |
-| Frontmatter    | TOML via [`toml-rb`](https://github.com/emancu/toml-rb) |
+| Markdown       | [python-markdown](https://python-markdown.github.io/) + [pymdown-extensions](https://facelessuser.github.io/pymdown-extensions/) |
-| App server     | [Puma](https://puma.io)                  |
+| Frontmatter    | TOML via stdlib [`tomllib`](https://docs.python.org/3/library/tomllib.html) + [`tomli-w`](https://github.com/camillescott/tomli-w) |
-| Packaging      | a Ruby gem with an `exe/volumen` CLI     |
+| Templating     | [Jinja2](https://jinja.palletsprojects.com/)                            |
 | Sessions       | Starlette `SessionMiddleware` (signed cookies via [`itsdangerous`](https://itsdangerous.palletsprojects.com/)) |
 | Packaging      | Wheel + sdist via [`setuptools`](https://setuptools.pypa.io/); [`uv`](https://docs.astral.sh/uv/) for dependency management |
 | Lint / format  | [Ruff](https://docs.astral.sh/ruff/)                                   |
 | Tests          | [pytest](https://docs.pytest.org/) + [httpx](https://www.python-httpx.org/) |
 ---
@@ -40,19 +47,22 @@ It is designed to be:
 - Multi-language posts with a translations map
 - Clean JSON API at `/api/volumen/`:
  - `GET /site` — site metadata
-  - `GET /posts` — paginated list with `lang`, `tag`, `page`, `limit` filters
+  - `GET /posts` — paginated list with `lang`, `tag`, `q`, `page`, `limit`
    filters
  - `GET /posts/{slug}` — single post (raw Markdown + rendered HTML)
  - `GET /tags` — tag cloud with counts
  - `GET /feed.xml` — RSS 2.0 feed
  - `GET /feed.json` — JSON Feed 1.1
  - `GET /sitemap.xml` — sitemap
 - Server-rendered admin at `/admin/`:
-  - Username + password login (scrypt-hashed via Ruby's `OpenSSL::KDF`)
+  - Username + password login (scrypt-hashed via `hashlib.scrypt`,
    verified in constant time with `secrets.compare_digest`)
  - Settings page: change password, change username, manage users and roles
    (admin only)
  - Session cookies (HttpOnly, SameSite=Strict) + CSRF tokens
  - List, create, edit, delete posts
-  - **Markdown source** editor and a **visual** editor with live preview, both
+  - **Markdown source** editor and a **visual** editor with live preview,
-    storing Markdown
+    both storing Markdown
  - "Reload from disk" to pick up out-of-band edits
 - Permissive CORS for the public API, same-origin only for the admin
@@ -64,16 +74,44 @@ It is designed to be:
 ## Quick start
 ### Production / first install
 ```bash
-# 1. Install dependencies (Ruby ≥ 3.2)
+# 1. Install the volumen CLI (once, on the machine):
 uv tool install volumen                       # or: pipx install volumen
 # 2. Bootstrap (once, typically as root — generates config, prompts for
 #    an admin password, and installs a hardened systemd unit):
 sudo volumen init
 sudo systemctl status volumen
 # 3. Reverse-proxy with nginx and you're done — see docs/deployment.md.
 ```
 `uv tool install` (or `pipx install`) drops a self-contained `volumen`
 executable on `PATH`; `volumen init` is the operational bootstrap that
 renders the config, creates the data dirs, generates a session key, and
 (with `--systemd`, on by default under root) installs a hardened unit
 file. See `volumen init --help` and `docs/deployment.md` for the full
 flow.
 ### Development (this checkout)
 ```bash
 # 1. Install dependencies (Python 3.14+ and uv required)
 just install
 # 2. Run
 just run
 ```
 `just install` runs `uv sync` (creates `.venv/` and installs the locked
 dependency set from `uv.lock`). `just run` launches the `volumen` console
 script from the venv with the bundled sample posts.
 The admin will live at <http://localhost:9090/admin/> and the API at
-<http://localhost:9090/api/volumen/posts>.
+<http://localhost:9090/api/volumen/posts>. The dev admin password is `admin`
 (the hash lives in `./config.toml`).
 ---
@@ -88,7 +126,8 @@ slug = "my-post"            # optional, defaults to the filename
 date = 2026-01-15           # first-class TOML date
 lang = "en"                 # language code
 author = "Petr Balvín"      # optional
-tags = ["ruby", "web"]      # optional
+fediverse_creator = "@petrbalvin@mastodon.social"  # optional, for Mastodon attribution
 tags = ["python", "web"]    # optional
 draft = false               # optional
 excerpt = "Short summary"   # optional, auto-derived from body if missing
 all_langs = false           # optional, show this post in every language
@@ -99,7 +138,7 @@ cs = "muj-prispevek"
 # Heading
-Body in **Markdown**, rendered by kramdown.
+Body in **Markdown**, rendered by python-markdown.
 ```
 Posts are organised on disk as either:
@@ -113,6 +152,41 @@ front-end can offer a language switcher.
 Set `all_langs = true` on a post to show it in **every** language (useful for
 posts that have no per-language translations).
 ### Cover caption
 A `cover_caption` frontmatter field renders a short caption next to the cover
 image — useful for photo credits or a one-line blurb:
 ```toml
 cover = "media/cover.webp"
 cover_caption = "Photo by Petr Balvín"
 ```
 ### Titled images as figures
 A Markdown image with a **title** (`![alt](url "caption")`) is rendered as a
 `<figure>` with a `<figcaption>` and a small `i` info icon. Images without a
 title render exactly as before:
 ```markdown
 ![A sunset over the hills](media/sunset.webp "Sunset from the ridge above the village")
 ```
 ### Fediverse attribution
 Set `fediverse_creator = "@user@instance.tld"` on a post to attach a Mastodon
 handle to it. The value is exposed as `fediverse_creator` on the post payload
 (`/api/volumen/posts/{slug}` and `/api/volumen/posts`), and as `<dc:creator>` in
 the RSS feed and `authors[].name` in the JSON feed. A front-end consuming the
 API can drop it straight into `<head>`:
 ```html
 <meta name="fediverse:creator" content="@petrbalvin@mastodon.social">
 ```
 A site-wide default can be set in `config.toml` (`[site].fediverse_creator`); a
 per-post value takes precedence.
 ### Why TOML instead of YAML
 - **First-class dates** — `date = 2026-01-15` is a real date, not a guess.
@@ -120,20 +194,28 @@ posts that have no per-language translations).
  becoming `false`).
 - **No whitespace pitfalls** — indentation is not significant.
 The engine parses it with the Python 3.11+ standard library `tomllib`; no
 extra TOML dependency is needed at runtime.
 ---
 ## Configuration
-A single TOML file, auto-generated at `/etc/volumen/config.toml` on first
+A single TOML file, auto-generated at `/etc/volumen/config.toml` when you
-start. See [`docs/configuration.md`](docs/configuration.md) for the full
+run `volumen init` (or, for local development, by `volumen serve` on first
 start). See [`docs/configuration.md`](docs/configuration.md) for the full
 schema.
 ```toml
 [server]
-host = "0.0.0.0"
+host = "::"          # IPv6 + IPv4 fallback; use "::1" behind nginx
 port = 9090
 env = "production"
 trust_proxy = true
 cookie_secure = true  # required in production behind HTTPS
 content_dir = "/var/lib/volumen/posts"
 users_file  = "/var/lib/volumen/users.toml"
 [site]
 title = "My Blog"
@@ -143,17 +225,26 @@ language = "en"
 author = "Anonymous"
 [admin]
-password_hash = ""
+password_hash = ""   # populated by `volumen init`
-session_key = ""
+session_key = ""     # populated by `volumen init`
 session_ttl = 86400
 min_password_length = 10
 cookie_secure = false   # set to true in production behind HTTPS
 ```
 `volumen init` writes the bootstrap admin hash and a fresh session key for
 you. To rotate the admin password later:
 ```bash
 sudo volumen hash-password   # returns a scrypt$… string; paste into [admin].password_hash
 ```
 ---
 ## Public API
-The API is at `/api/volumen/`. CORS is open (`*`) for read endpoints; admin routes
+The API is at `/api/volumen/`. CORS is open (`*`) for read endpoints; admin
-are same-origin only.
+routes are same-origin only.
 ### `GET /api/volumen/posts`
@@ -161,6 +252,7 @@ are same-origin only.
 |-------|--------|---------|----------------------|
 | lang  | string | —       | Filter by language   |
 | tag   | string | —       | Filter by tag        |
 | q     | string | —       | Search in title/body |
 | page  | int    | 1       | Page number          |
 | limit | int    | 20      | Posts per page       |
@@ -169,6 +261,8 @@ are same-origin only.
  "page": 1,
  "page_size": 20,
  "total": 42,
  "has_next": true,
  "has_prev": false,
  "posts": [
    {
      "slug": "welcome",
@@ -176,7 +270,7 @@ are same-origin only.
      "excerpt": "A short introduction…",
      "date": "2026-01-15",
      "lang": "en",
-      "tags": ["intro", "ruby"],
+      "tags": ["intro", "python"],
      "author": "Petr Balvín",
      "translations": { "cs": "vitame-vas" },
      "url": "/api/volumen/posts/welcome"
@@ -195,7 +289,7 @@ Returns the full post including the raw Markdown body and the rendered HTML.
  "title": "Welcome to volumen",
  "date": "2026-01-15",
  "lang": "en",
-  "tags": ["intro", "ruby"],
+  "tags": ["intro", "python"],
  "excerpt": "…",
  "body": "# Welcome to **volumen**\n\n…",
  "html": "<h1>Welcome to <strong>volumen</strong></h1>…",
@@ -209,13 +303,22 @@ Returns the full post including the raw Markdown body and the rendered HTML.
 ```bash
 just              # list recipes
-just install      # bundle install
+just install      # uv sync (creates .venv/ from uv.lock)
-just run          # run the dev server (exe/volumen serve)
+just run          # run the dev server (volumen serve)
-just build        # rubocop (zero warnings) + build the gem → pkg/volumen.gem
+just dev          # run against ./posts and ./config.toml on :9090
-just test         # bundle exec rake test (minitest)
+just build        # ruff check + ruff format --check (zero warnings)
-just uninstall    # remove build artifacts (pkg/, *.gem)
+just test         # uv run pytest
 just fmt          # ruff format + ruff check --fix
 just uninstall    # remove build artifacts (dist/, __pycache__, .pytest_cache, .ruff_cache)
 ```
 The console script lives at `src/volumen/cli.py` and is registered as
 `volumen` via the `[project.scripts]` entry in `pyproject.toml`; `uv run`
 shims it onto `PATH` inside `.venv/`. In production the CLI is installed
 globally via `uv tool install volumen` (or `pipx install volumen`) and the
 operational bootstrap is done with `sudo volumen init` —
 see [`docs/deployment.md`](docs/deployment.md).
 ---
 ## Public site integration
@@ -1,12 +0,0 @@
 # frozen_string_literal: true
 require "rake/testtask"
 Rake::TestTask.new(:test) do |t|
  t.libs << "test"
  t.libs << "lib"
  t.test_files = FileList["test/**/*_test.rb"]
  t.warning = false
 end
 task default: :test
@@ -1,23 +0,0 @@
 # Local development configuration for `just dev`.
 # Not shipped with the gem; safe to edit. Keep real admin hashes out of Git.
 [server]
 host = "127.0.0.1"
 port = 9090
 content_dir = "./posts"
 users_file = "./users.toml"
 [site]
 title = "volumen (dev)"
 description = "Local development instance of volumen."
 base_url = "http://localhost:9090"
 language = "cs"
 author = "Petr Balvín"
 [admin]
 # Dev credentials: password is "admin". Replace before any real use
 # (generate with `volumen hash-password`).
 password_hash = "scrypt$16384$8$1$I7XEC8EpyfaptaPxmBQSUg==$gK7TRZAJnYmOSfKJ7xg+cOaYeBV4r5jlqcoL5+jNlSs="
 session_key = ""
 session_ttl = 86400
@@ -0,0 +1,37 @@
 # Local development configuration for `just dev`.
 # Copy to config.toml and adjust. Keep real admin hashes out of Git.
 [server]
 host = "::"
 port = 9090
 # Environment label: "development" or "production". Affects startup
 # safety checks (session key length, secure cookies, password policy).
 env = "development"
 # Set true ONLY when running behind a trusted reverse proxy that
 # terminates TLS. The proxy must strip client-supplied
 # X-Forwarded-Proto headers.
 trust_proxy = false
 # Set true in production to force `Secure` flag on session cookies.
 cookie_secure = false
 content_dir = "./posts"
 users_file = "./users.toml"
 [site]
 title = "volumen (dev)"
 description = "Local development instance of volumen."
 base_url = "http://localhost:9090"
 language = "cs"
 author = "Petr Balvín"
 [admin]
 # Generate a hash with: uv run volumen hash-password
 password_hash = ""
 session_key = ""
 session_ttl = 86400
 # Minimum new-password length (default 10).
 min_password_length = 10
 # Maximum new-password length (cap to avoid scrypt abuse).
 max_password_length = 1024
 # Maximum upload size in bytes (default 10 MB).
 max_upload_bytes = 10485760
@@ -16,10 +16,14 @@ Returns site metadata from the configuration.
  "description": "A blog powered by volumen.",
  "base_url": "https://example.com",
  "language": "en",
-  "author": "Anonymous"
+  "author": "Anonymous",
  "fediverse_creator": "@petrbalvin@mastodon.social"
 }
 ```
 `fediverse_creator` is `null` when the site-wide default is not set; a per-post
 value (see below) takes precedence when present.
 ## `GET /api/volumen/posts`
 Paginated list of published posts (drafts are excluded), newest first.
@@ -29,6 +33,7 @@ Posts with `all_langs = true` in their frontmatter match every `lang` filter.
 |-------|--------|---------|--------------------|
 | lang  | string | —       | Filter by language |
 | tag   | string | —       | Filter by tag      |
 | q     | string | —       | Case-insensitive search across title and body |
 | page  | int    | 1       | Page number        |
 | limit | int    | 20      | Per page (1–100)   |
@@ -37,6 +42,8 @@ Posts with `all_langs = true` in their frontmatter match every `lang` filter.
  "page": 1,
  "page_size": 20,
  "total": 1,
  "has_next": false,
  "has_prev": false,
  "posts": [
    {
      "slug": "hello",
@@ -46,6 +53,7 @@ Posts with `all_langs = true` in their frontmatter match every `lang` filter.
      "lang": "en",
      "tags": ["intro"],
      "author": null,
      "fediverse_creator": null,
      "cover": null,
      "reading_time": 1,
      "translations": {},
@@ -59,7 +67,7 @@ Posts with `all_langs = true` in their frontmatter match every `lang` filter.
 Single post including the raw Markdown body and rendered HTML. Optional
 `?lang=` selects a translation. Returns `404` with `{"error":"not_found"}` if
-no match.
+no match. Drafts return `404` with `{"error":"draft"}`.
 ```json
 {
@@ -70,6 +78,7 @@ no match.
  "lang": "en",
  "tags": ["intro"],
  "author": null,
  "fediverse_creator": "@petrbalvin@mastodon.social",
  "cover": null,
  "reading_time": 1,
  "translations": {},
@@ -87,7 +96,14 @@ Tag cloud with counts (published posts only), most frequent first.
 { "tags": [{ "name": "intro", "count": 1 }] }
 ```
-## `GET /api/volumen/feed.xml`, `GET /api/volumen/sitemap.xml`
+## `GET /api/volumen/feed.xml`, `GET /api/volumen/feed.json`, `GET /api/volumen/sitemap.xml`
-RSS 2.0 feed (latest 20 posts) and a sitemap of post URLs, built from
+- `feed.xml` — RSS 2.0 feed of the 20 most recent posts.
-`site.base_url`.
+- `feed.json` — [JSON Feed 1.1](https://www.jsonfeed.org/) document with
  `content_html` and `date_published` per item.
 - `sitemap.xml` — XML sitemap built from `site.base_url`.
 ## `OPTIONS /api/volumen/*`
 Preflight requests return an empty `204` with the same CORS headers as the GET
 endpoints, so browsers can reach the JSON API cross-origin.
@@ -3,7 +3,7 @@
 > Status: the core library, the public JSON API, and the server-rendered admin
 > (login, CSRF, post CRUD, Markdown editor + live preview) are implemented.
-**volumen** is a small, file-based Markdown blog engine written in CRuby. It
+**volumen** is a small, file-based Markdown blog engine written in Python. It
 has no database: every post is a `.md` file on disk with a TOML frontmatter
 block. The engine reads those files, exposes them as a JSON API, and ships a
 server-rendered admin for editing them.
@@ -12,45 +12,72 @@ server-rendered admin for editing them.
 - **File-based** — posts are plain `.md` files, safe to commit to Git and edit
  by hand or through the admin.
- **Single-admin** — one password, one content directory, one user.
+- **Self-contained** — runs as a single Python process (Uvicorn) under FastAPI;
- **Self-contained** — runs as a single Ruby process; no Node build step is
+  no Node build step is required to operate the engine or its admin.
-  required to operate the engine or its admin.
+- **Dependency-light** — a small, well-chosen set of PyPI packages (FastAPI,
- **Dependency-light** — a small, well-chosen set of gems (Sinatra, kramdown,
+  python-markdown, Jinja2, itsdangerous, python-multipart) rather than a
-  toml-rb, puma) rather than a full framework.
+  full-stack framework. The standard library covers cryptography.
 - **Markdown-first** — the visual editor round-trips through the same renderer
  that powers the public API, so stored content is always Markdown.
-## Components (planned layout)
+## Components
 ```
-lib/volumen/
+src/volumen/
-  version.rb       # gem version
+  __init__.py        # VERSION + in-memory login-attempt rate limiter
-  config.rb        # loads /etc/volumen/config.toml, applies CLI overrides
+  cli.py             # argparse entry point: serve, hash-password, version
-  frontmatter.rb   # parse/serialise the `+++ … +++` TOML block
+  config.py          # loads config.toml via stdlib tomllib, deep-merges defaults
-  post.rb          # Post model: metadata + raw body + rendered HTML
+  frontmatter.py     # parse/serialise the `+++ … +++` TOML block
-  store.rb         # reads the content directory into Post objects
+  post.py            # Post model: metadata + raw body + rendered HTML
-  markdown.rb      # kramdown wrapper (render + sanitise)
+  store.py           # reads the content directory into Post objects (mtime-cached)
-  server.rb        # Sinatra app: JSON API + admin routes
+  markdown.py        # python-markdown + pymdown-extensions wrapper, <figure>/<figcaption>
  feed_helpers.py    # RSS / JSON Feed / sitemap generation
  users.py           # users.toml + admin/author roles
  password.py        # scrypt hashing/verification (hashlib + secrets.compare_digest)
  api_routes.py      # /api/volumen/* (FastAPI APIRouter)
  admin_routes.py    # /admin/* + /media/* (FastAPI APIRouter)
  server.py          # create_app factory, middleware, dependency helpers
  web/
-    views/         # ERB templates for the admin
+    templates/       # Jinja2 templates for the admin
-    public/        # admin CSS + the visual-editor JS island
+    static/          # static assets (volumen-logo.svg, volumen-icon.svg)
-exe/volumen        # CLI: serve, hash-password, version, help
+exe/volumen          # thin shim that calls volumen.cli:main
 ```
-## Request flow (planned)
+## Request flow
 ```mermaid
 graph TD
  A[HTTP request] --> B{Route}
-  B -->|/api/volumen/*| C[JSON API]
+  B -->|/api/volumen/*| C[api_routes.py]
-  B -->|/admin/*| D[Admin: session + CSRF]
+  B -->|/admin/*| D[admin_routes.py + CSRF + CSP]
-  C --> E[Store]
+  B -->|/media/*| E[admin_routes.py media_router]
-  D --> E
+  C --> F[Store]
-  E --> F[(content_dir/*.md)]
+  D --> F
  D --> U[Users]
  C --> H[FeedHelpers]
  C --> G[Markdown renderer]
-  D --> G
+  F --> I[(content_dir/*.md)]
  F --> J[(content_dir/media/*)]
  U --> K[(users.toml)]
  H --> F
  G --> L[<figure> for titled images]
  D --> M[SessionMiddleware + CSPMiddleware]
  C --> M
  E --> M
 ```
 ## Middleware stack
 - `SessionMiddleware` (Starlette) — signed cookie session, signed with
  `itsdangerous` using the secret derived from `[admin].session_key`. Set to
  `HttpOnly` and `SameSite=Strict`; `Secure` is added by `SecureCookieMiddleware`
  when the request was forwarded over HTTPS.
 - `SecureCookieMiddleware` (custom) — inspects `X-Forwarded-Proto` (when
  `[server].trust_proxy = true`) and exposes `request.state.session_secure`
  for downstream code that needs to know whether the request is HTTPS.
 - `CSPMiddleware` (custom) — injects the `Content-Security-Policy` header on
  every `/admin/*` response.
 ## Public site integration
 The public website (e.g. `petrbalvin.org`, a Vue 3 + Vite + Tailwind SPA)
@@ -1,20 +1,28 @@
 # Configuration
-> Status: initial draft. Field semantics are finalised as the loader lands.
+> Status: the loader in `src/volumen/config.py` is the source of truth. This
 > document lists every key it understands, with type, default, and meaning.
 volumen is configured by a single **TOML** file. By default it lives at
 `/etc/volumen/config.toml` and is auto-generated on first start. CLI flags
 passed to `volumen serve` override the file.
 A template you can copy as a starting point is at
 [`config.toml.example`](../config.toml.example) in the repository root. The
 template ships with development defaults (`host = "::"`, `env = "development"`,
 `cookie_secure = false`) — flip them for production.
 ## Example `config.toml`
 ```toml
 [server]
-host = "0.0.0.0"
+host = "::1"
 port = 9090
 env = "production"
 trust_proxy = true
 # Directory containing your Markdown posts.
 content_dir = "/var/lib/volumen/posts"
 users_file = "/var/lib/volumen/users.toml"
 [site]
 title = "My Blog"
@@ -22,17 +30,60 @@ description = "A blog powered by volumen."
 base_url = "https://example.com"
 language = "en"
 author = "Anonymous"
 fediverse_creator = "@you@example.social"
 [admin]
 # scrypt hash produced by `volumen hash-password`.
 password_hash = ""
 # Secret used to sign session cookies. Leave empty to auto-generate per start
 # (sessions reset on restart).
 session_key = ""
 # Session lifetime in seconds (default 24h).
 session_ttl = 86400
 min_password_length = 10
 max_password_length = 1024
 max_upload_bytes = 10485760   # 10 MB
 cookie_secure = true
 ```
 ## Key reference
 ### `[server]`
 | Key            | Type    | Default       | Description |
 |----------------|---------|---------------|-------------|
 | `host`         | string  | `"::"`        | Bind address. `"::"` listens on IPv6 with automatic IPv4 fallback; use `"::1"` (or `"127.0.0.1"`) when running behind a reverse proxy. |
 | `port`         | integer | `9090`        | TCP port the Uvicorn worker binds to. |
 | `env`          | string  | `"development"` | Runtime environment. `"production"` enables strict startup safety checks (refuses to boot with an empty `admin.password_hash`, warns on a short `admin.session_key`, enforces `cookie_secure`); `"development"` is more forgiving for local runs. |
 | `trust_proxy`  | boolean | `false`       | When `true`, honour the `X-Forwarded-Proto` header set by an upstream reverse proxy (nginx). Set `true` ONLY when running behind a trusted proxy that strips client-supplied values; otherwise an attacker could fake `https://` and force `Secure` cookies. |
 | `cookie_secure`| boolean | `false`       | Mark session cookies as `Secure` (browser only sends them over HTTPS). Default `false` so local HTTP development works without TLS; set to `true` in production behind HTTPS. The runtime also auto-promotes cookies to `Secure` when `[server].trust_proxy = true` and `X-Forwarded-Proto: https` is observed. |
 ### Top-level
 | Key            | Type    | Default                          | Description |
 |----------------|---------|----------------------------------|-------------|
 | `content_dir`  | string  | `"/var/lib/volumen/posts"`       | Directory of `.md` files with `+++` TOML frontmatter. |
 | `users_file`   | string  | `"/var/lib/volumen/users.toml"`  | File storing admin users (managed from the admin Settings page). |
 ### `[site]`
 | Key                 | Type            | Default                  | Description |
 |---------------------|-----------------|--------------------------|-------------|
 | `title`             | string          | `"My Blog"`              | Exposed as `site.title`. |
 | `description`       | string          | `"A blog powered by volumen."` | Exposed as `site.description`. |
 | `base_url`          | string          | `"https://example.com"`  | Used to build absolute URLs in the RSS feed, JSON feed, sitemap, and the public API. |
 | `language`          | string          | `"en"`                   | Default language for posts and the admin UI. |
 | `author`            | string          | `"Anonymous"`            | Default author when a post frontmatter omits it. |
 | `fediverse_creator` | string \| null  | `null`                   | Site-wide fediverse handle (e.g. `@user@instance.tld`). Exposed as `site.fediverse_creator` and rendered as `<dc:creator>` in the RSS feed and `authors[].name` in the JSON feed. Per-post frontmatter overrides it. |
 ### `[admin]`
 | Key                   | Type    | Default   | Description |
 |-----------------------|---------|-----------|-------------|
 | `password_hash`       | string  | `""`      | Bootstrap admin login: paste a hash from `volumen hash-password` to sign in as user `admin`. Once you create users from the Settings page, `users_file` wins. |
 | `session_key`         | string  | `""`      | Secret used to sign session cookies. Must be `>= 64` bytes; empty value = a random secret per start (sessions reset on restart, do not use in production). |
 | `session_ttl`         | integer | `86400`   | Session lifetime in seconds (default 24h). `0` or negative = no expiry until the browser session ends. |
 | `min_password_length` | integer | `10`      | Minimum length required for admin-chosen passwords on the Settings page. Must be `>= 8`; the bootstrap hash is not affected. |
 | `max_password_length` | integer | `1024`    | Maximum length for admin-chosen passwords (cap to avoid scrypt abuse; scrypt is CPU-bound by design). |
 | `max_upload_bytes`    | integer | `10485760` | Maximum upload size in bytes (default 10 MB). Uploads larger than this are rejected with HTTP 413. |
 | `cookie_secure`       | boolean | `false`   | Mark session cookies as `Secure` (browser only sends them over HTTPS). Default `false` so local HTTP development works without TLS; set to `true` in production behind HTTPS. The runtime also auto-promotes cookies to `Secure` when `[server].trust_proxy = true` and `X-Forwarded-Proto: https` is observed. |
 ## CLI overrides
 ```bash
@@ -50,3 +101,7 @@ volumen serve --config /etc/volumen/config.toml \
 The same format is used for post frontmatter; see the post format section in
 the project [`README.md`](../README.md).
 The Python standard library `tomllib` (3.11+) parses the file at load time; no
 extra TOML dependency is required at runtime. `tomli-w` is bundled for the
 admin to round-trip TOML frontmatter on post edits.
@@ -2,95 +2,113 @@
 > Status: production deployment on Linux with systemd + nginx.
-volumen runs as a single Ruby process (Puma) bound to localhost, behind nginx
+volumen runs as a single Python process (Uvicorn via `fastapi[standard]`) bound
-which terminates TLS and reverse-proxies the API and admin. The public website
+to localhost, behind nginx which terminates TLS and reverse-proxies the API and
-(e.g. a Vue SPA) is served separately and consumes the JSON API.
+admin. The public website (e.g. a Vue SPA) is served separately and consumes
 the JSON API.
 The CLI binary is installed system-wide via `uv tool install` (or `pipx
 install`); the *operational* bootstrap — config, data dirs, admin password,
 optional systemd unit — is performed by the `volumen init` Python subcommand
 that replaces the old `install.sh` bash script.
 ## Requirements
- **Ruby ≥ 3.3** with a C toolchain (Puma compiles a native extension).
+- **Python ≥ 3.14** (the bundled wheel ships its own interpreter when you use
-  - Fedora: `sudo dnf install ruby ruby-devel @development-tools openssl-devel`
+  `uv tool install` / `pipx install`; the system Python is only required if
-  - Debian/Ubuntu: `sudo apt install ruby-full build-essential libssl-dev`
+  you're building from source).
- **nginx** and a TLS certificate (e.g. via certbot).
+  - Fedora: `sudo dnf install python3.14`
- A dedicated system user, e.g. `volumen`.
+  - Debian/Ubuntu: `sudo apt install python3.14 python3-venv python3-pip`
 - **[`uv`](https://docs.astral.sh/uv/)** (recommended) — install with
  `curl -LsSf https://astral.sh/uv/install.sh | sh`. Alternatively,
  [`pipx`](https://pipx.pypa.io/) ships in most distro repos.
 - **nginx** and a TLS certificate (e.g. via certbot) for the public site.
 - A dedicated system user, `volumen`, created automatically by
  `volumen init` when run as root.
-## Layout
+## Install the CLI
 ```bash
 # Pick one:
 uv tool install volumen
 # or
 pipx install volumen
 # Both put a self-contained `volumen` binary on PATH. Verify:
 volumen version
 ```
 For platforms where the wheel is not available (or for development), build it
 from a source checkout:
 ```bash
 git clone https://sourcedock.dev/petrbalvin/volumen.git
 cd volumen
 uv tool install .
 ```
 ## Bootstrap the deployment
 ### System install (root, systemd)
 ```bash
 sudo volumen init
 sudo systemctl status volumen
 ```
 `volumen init` walks through:
 1. Whether `config_path` already exists — if so, leaves it untouched unless
   `--force` is passed (and even then it makes a timestamped `.bak.<ts>.toml`
   first).
 2. Creates `/etc/volumen/`, `/var/lib/volumen/posts` (and a `media/`
   subdirectory), `/var/lib/volumen/users.toml`.
 3. Creates the system user `volumen` if missing (`useradd --system …`).
 4. Prompts for an admin password (`getpass`), hashes it via scrypt, writes the
   `password_hash` into the rendered config.
 5. Generates a fresh 64-byte session key (`secrets.token_hex(64)`) and writes
   it into `[admin].session_key`.
 6. Forces production-style settings: `host = "::1"`, `env = "production"`,
   `trust_proxy = true`, `cookie_secure = true`.
 7. With `--systemd` (default under root), writes
   `/etc/systemd/system/volumen.service` and runs
   `systemctl daemon-reload && systemctl enable --now volumen`.
 Pass `--no-enable` to install the unit without starting it; pass `--force` to
 back up and overwrite an existing config. The full flag list lives in
 `volumen init --help`.
 ### Per-user install (no root)
 ```bash
 volumen init --local
 ```
 Per-user paths: `~/.config/volumen/config.toml`,
 `~/.local/share/volumen/posts`, `~/.local/share/volumen/users.toml`. No
 system user is created and no systemd unit is installed. `--systemd` is
 rejected in this mode.
 ## Configuration locations
 | Path | Purpose |
 |------|---------|
-| `/opt/volumen` | source checkout (or installed gem) |
+| `/etc/volumen/config.toml` | configuration (rendered by `volumen init` on first run) |
 | `/etc/volumen/config.toml` | configuration (auto-generated on first run) |
 | `/var/lib/volumen/posts` | Markdown posts |
 | `/var/lib/volumen/users.toml` | admin users (created from Settings) |
 | `/var/lib/volumen/posts/media` | uploaded images |
 | `/var/lib/volumen/users.toml` | admin users (created from Settings) |
 | `/etc/systemd/system/volumen.service` | systemd unit (only when `--systemd`) |
 | `~/.config/volumen/config.toml` | per-user config (`--local`) |
 | `~/.local/share/volumen/posts` | per-user data dir (`--local`) |
 | `~/.local/share/volumen/users.toml` | per-user users file (`--local`) |
-```bash
+The config and users files are owned by `volumen:volumen` and `chmod 600` after
-sudo useradd --system --home /var/lib/volumen --shell /usr/sbin/nologin volumen
+a system install — they may carry password hashes, so never make them
-sudo mkdir -p /etc/volumen /var/lib/volumen/posts
+world-readable.
 sudo chown -R volumen:volumen /var/lib/volumen
 ```
 ## Install
 ### Quick install (Linux + systemd)
 From a cloned repository, run the installer as root. It installs the Ruby
 toolchain from the distro repositories on **Fedora** and **openEuler** (prints
 guidance on other distros), creates the `volumen` user and directories, runs
 `bundle install`, generates `config.toml`, and installs and enables the systemd
 unit:
 ```bash
 sudo git clone https://codeberg.org/petrbalvin/volumen.git /opt/volumen
 cd /opt/volumen
 sudo ./install.sh
 ```
 The service is enabled but not started — finish by setting the admin password
 (printed steps), then `sudo systemctl start volumen`. The manual steps below
 describe what the script does.
 ### Manual install
 From a source checkout (reproducible, no publishing needed):
 ```bash
 sudo git clone https://codeberg.org/petrbalvin/volumen.git /opt/volumen
 cd /opt/volumen
 sudo bundle install --deployment
 ```
 Alternatively build and install the gem (`just build` produces `pkg/volumen.gem`,
 then `gem install pkg/volumen.gem` puts `volumen` on the PATH).
 ## First run and the admin password
 The first `serve` writes a commented `config.toml` if it is missing:
 ```bash
 sudo -u volumen bundle exec exe/volumen serve \
  --config /etc/volumen/config.toml \
  --content /var/lib/volumen/posts
 # → "volumen: wrote a default config to /etc/volumen/config.toml; review it and restart."
 ```
 Generate a password hash and a stable session secret, then edit the config:
 ```bash
 bundle exec exe/volumen hash-password    # → scrypt$...
 openssl rand -hex 64                      # → session_key
 sudo -u volumen $EDITOR /etc/volumen/config.toml
 ```
 Set `host = "127.0.0.1"`, your `site.base_url`, the `admin.password_hash`, and a
 `admin.session_key` (so sessions survive restarts). You can now sign in as user
 `admin`; from the **Settings** page you can add more users (roles `admin` /
 `author`) and change passwords. From then on `users.toml` is the source of
 truth.
 ## systemd
-`/etc/systemd/system/volumen.service`:
+`/etc/systemd/system/volumen.service` (rendered by `volumen init --systemd`):
 ```ini
 [Unit]
@@ -98,10 +116,12 @@ Description=volumen blog engine
 After=network.target
 [Service]
 Type=simple
 User=volumen
 Group=volumen
-WorkingDirectory=/opt/volumen
+WorkingDirectory=/etc/volumen
-ExecStart=/usr/bin/bundle exec exe/volumen serve --config /etc/volumen/config.toml --content /var/lib/volumen/posts
+Environment=PYTHONUNBUFFERED=1
 ExecStart=/usr/local/bin/volumen serve --config /etc/volumen/config.toml --content /var/lib/volumen/posts
 Restart=on-failure
 RestartSec=2
 NoNewPrivileges=true
@@ -114,26 +134,34 @@ PrivateTmp=true
 WantedBy=multi-user.target
 ```
 Hardening notes — `NoNewPrivileges`, `ProtectSystem=strict` (the entire
 filesystem is read-only except for `ReadWritePaths`), `ProtectHome`
 (`/home`, `/root`, `/run/user` are inaccessible), `PrivateTmp` (private
 `/tmp`), and a two-second restart delay on failure.
 Inspect health with:
 ```bash
 sudo systemctl daemon-reload
 sudo systemctl enable --now volumen
 sudo systemctl status volumen
 journalctl -u volumen -f
 volumen status            # config / data dir / unit / service state
 volumen status --json     # machine-readable
 ```
 ## FreeBSD (rc.d)
-volumen runs on FreeBSD too — it is plain CRuby plus gems; only Puma (and its
+volumen runs on FreeBSD too — it is plain CPython with no compiled extensions.
 `nio4r` dependency) build a native extension, which compiles with the base
 clang toolchain.
 ```sh
-pkg install ruby
+pkg install python3
-# then install volumen as above (git clone + bundle install)
+# install uv (https://docs.astral.sh/uv/getting-started/installation/)
 uv tool install volumen
 sudo volumen init --local   # no systemd on FreeBSD
 ```
 Conventional FreeBSD paths: config in `/usr/local/etc/volumen/`, data in
-`/var/db/volumen/`. Service script `/usr/local/etc/rc.d/volumen`:
+`/var/db/volumen/`. Drop a tiny `rc.d` script in `/usr/local/etc/rc.d/volumen`
 that wraps the `volumen` console script:
 ```sh
 #!/bin/sh
@@ -150,14 +178,13 @@ load_rc_config $name
 : ${volumen_enable:="NO"}
 : ${volumen_user:="volumen"}
 : ${volumen_dir:="/usr/local/volumen"}
 : ${volumen_config:="/usr/local/etc/volumen/config.toml"}
 : ${volumen_content:="/var/db/volumen/posts"}
 pidfile="/var/run/${name}.pid"
 command="/usr/sbin/daemon"
 command_args="-f -r -P ${pidfile} -u ${volumen_user} \
-  /bin/sh -c 'cd ${volumen_dir} && exec bundle exec exe/volumen serve --config ${volumen_config} --content ${volumen_content}'"
+  /bin/sh -c 'exec volumen serve --config ${volumen_config} --content ${volumen_content}'"
 run_rc_command "$1"
 ```
@@ -165,6 +192,7 @@ run_rc_command "$1"
 Enable and start:
 ```sh
 chmod +x /usr/local/etc/rc.d/volumen
 sysrc volumen_enable=YES
 service volumen start
 ```
@@ -266,22 +294,34 @@ right block. Apply with `sudo nginx -t && sudo systemctl reload nginx`.
 ## Updating
 ```bash
-cd /opt/volumen
+uv tool upgrade volumen
 sudo git pull
 sudo bundle install --deployment
 sudo systemctl restart volumen
 volumen status   # confirm: config_exists, password_hash_set, session_key_ok, …
 ```
 The CLI binary is replaced in place by `uv tool upgrade`; the systemd unit's
 `ExecStart` already points at the on-PATH `volumen` console script, so a
 restart is all that's needed. The persistent state (`config.toml`,
 `users.toml`, posts) is untouched.
 If you used the legacy `install.sh` workflow (no longer documented, the script
 was removed), you can migrate forward by deleting `/etc/systemd/system/volumen.service`
 + `/opt/volumen` and then running `uv tool install volumen && sudo volumen init`.
 ## Security notes
- Bind to `127.0.0.1`; only nginx is public. TLS is terminated by nginx.
+- Bind to `::1` (or `127.0.0.1`); only nginx is public. TLS is terminated by
  nginx.
 - Session cookies are `HttpOnly` and `SameSite=Strict`, and gain the `Secure`
  attribute automatically on HTTPS requests (detected via `X-Forwarded-Proto`,
-  which the nginx snippet above sets) — so the cookie never travels over plain
+  which the nginx snippet above sets, and enabled by
-  HTTP in production, while local HTTP testing still works. Combined with
+  `[server].cookie_secure = true`, set automatically by `volumen init
-  per-form CSRF tokens this protects the admin. Set a stable `admin.session_key`
+  --systemd`) — so the cookie never travels over plain HTTP in production,
-  so sessions survive restarts.
+  while local HTTP testing still works. Combined with per-form CSRF tokens
  this protects the admin. A stable `[admin].session_key` (also written by
  `volumen init`) lets sessions survive restarts.
 - Keep `config.toml` and `users.toml` readable only by the `volumen` user
-  (`chmod 600`). Both may contain password hashes.
+  (`chmod 600`). Both may contain password hashes. The installer enforces
- `volumen hash-password` reads the password without echo; never pass passwords
+  this automatically.
-  on the command line.
+- Use `volumen hash-password` to rotate; it reads the password without echo.
  Never pass passwords on the command line.
@@ -2,7 +2,7 @@
 > Status: threat model and security posture for the engine as implemented.
-volumen is a small, file-based blog engine: a single Ruby process exposing a
+volumen is a small, file-based blog engine: a single Python process exposing a
 read-only public JSON API and a session-authenticated admin, behind nginx. This
 document describes the trust model, the controls in place, and the known
 limitations.
@@ -13,33 +13,37 @@ than opening a public issue.
 ## Trust model
 - **Content authors are trusted.** Posts are written by authenticated admin
-  users. kramdown renders Markdown and **passes raw HTML through** on purpose,
+  users. python-markdown renders Markdown with a few pymdown-extensions
-  so an author can embed HTML. The stored/served `html` is therefore only as
+  extensions. The engine does **not** strip raw HTML from post bodies by
-  safe as the people who can log in. If you need to accept posts from untrusted
+  default (authors are the trusted admin); if you need to accept posts from
-  authors, add an HTML sanitiser before serving.
+  untrusted authors, add a sanitiser (e.g. `bleach`) before serving.
 - **The public API is read-only.** It exposes published (non-draft) posts, tags,
  a feed and a sitemap. No public endpoint mutates state.
 ## Authentication
- Passwords are hashed with **scrypt** via `OpenSSL::KDF` (`N=16384`, `r=8`,
+- Passwords are hashed with **scrypt** via `hashlib.scrypt` (`n=16384`, `r=8`,
  `p=1`, 32-byte key, 16-byte random salt). Verification uses
-  `OpenSSL.fixed_length_secure_compare` (constant-time).
+  `secrets.compare_digest` (constant-time) on the derived bytes.
 - Login takes a **username + password**. The error message is intentionally
  generic ("Invalid username or password.") to avoid user enumeration.
- Sessions use signed cookies (`Rack::Session::Cookie`) marked **`HttpOnly`**
+- Sessions use **signed cookies** via Starlette's `SessionMiddleware`
-  and **`SameSite=Strict`**. The **`Secure`** attribute is added automatically on
+  (`itsdangerous` TimestampSigner under the hood), marked **`HttpOnly`** and
-  HTTPS requests (detected via `request.ssl?` / `X-Forwarded-Proto`), so the
+  **`SameSite=Strict`**. The **`Secure`** attribute is added by
-  cookie never travels over plain HTTP in production. The signing secret comes
+  `SecureCookieMiddleware` when `X-Forwarded-Proto: https` is observed (only
-  from `admin.session_key`; if it is shorter than 64 bytes a random secret is
+  honoured when `[server].trust_proxy = true`) so the cookie never travels
-  generated per start (sessions then reset on restart, so set a stable key in
+  over plain HTTP in production while local HTTP testing still works. The
-  production).
+  signing secret comes from `admin.session_key`; if it is shorter than 64
  bytes a random secret is generated per start (sessions then reset on
  restart, so set a stable key in production).
 - A minimum password length of `[admin].min_password_length` (default `10`,
  must be `>= 8`) is enforced on the Settings page password-change form.
 ## Authorization (roles)
 - Two roles: **admin** (full access, manages users) and **author** (posts and
  own account only).
- User management (`add`/`delete`/role change) is gated by `require_admin!`
+- User management (`add`/`delete`/role change) is gated by `require_admin`
  **on the server**, not merely hidden in the UI.
 - Safeguards prevent lockout: the **last admin** cannot be deleted or demoted,
  and a user cannot delete their own account or change their own role.
@@ -47,29 +51,56 @@ than opening a public issue.
 ## CSRF
 - Every state-changing form (`POST`) carries a per-session token
-  (`SecureRandom.hex(32)`), validated with `Rack::Utils.secure_compare`.
+  (`secrets.token_hex(32)`), validated with `secrets.compare_digest`.
  Requests without a valid token get `403`.
 - `SameSite=Strict` cookies provide a second, independent layer.
 ## Content Security Policy (admin)
 All `/admin/*` responses send a strict **Content-Security-Policy** header
 (via `CSPMiddleware`):
 ```
 default-src 'self';
 script-src 'self' 'unsafe-inline';
 style-src 'self' 'unsafe-inline';
 img-src 'self' data:;
 font-src 'self';
 connect-src 'self';
 form-action 'self';
 frame-ancestors 'none'
 ```
 The inline allowances are required by the server-rendered admin (Jinja2
 templates emit small inline `<script>` blocks and inline `style=""` attributes);
 `frame-ancestors 'none'` prevents clickjacking via iframe embedding. The public
 JSON API does not set a CSP — it returns no HTML, so none is needed.
 ## CORS and Host handling
 - The public read API sends `Access-Control-Allow-Origin: *` (read-only, no
  credentials) so any front-end may consume it. The admin sends **no** CORS
  headers and is same-origin only.
- `Rack::Protection::HostAuthorization` is disabled (`permitted_hosts: []`)
+- volumen is intended to run behind nginx, which controls the `Host` header.
-  because volumen is intended to run behind nginx, which controls the `Host`
+  Do not expose the Uvicorn port directly to the internet.
  header. Do not expose the Puma port directly to the internet.
 ## File uploads and path traversal
 - Uploaded media is stored under `content_dir/media` with a **sanitised,
  randomised** filename (`<hex>-<slug>.<ext>`), so uploads cannot overwrite
  each other or escape the directory.
- `GET /media/*` resolves names with `File.basename` and an explicit
+- `GET /media/*` resolves names with `Path(...).name` and an explicit
  containment check, so `../` traversal cannot read files outside the media
  directory.
- Upload content-type is **not** validated (the `accept="image/*"` attribute is
+- Uploads are **rejected (HTTP 413)** when the file exceeds the
-  only a UI hint); this is acceptable under the trusted-author model.
+  `[admin].max_upload_bytes` ceiling (default **10 MB**, `10485760` bytes).
 - Upload MIME type is **whitelisted** to `image/webp` and `image/avif`
  (`ALLOWED_UPLOAD_TYPES`); anything else returns **HTTP 415** with a
  conversion hint pointing at `cwebp` / `avifenc`. This matches the
  WebP/AVIF-only posture the engine serves content in and rejects binaries
  (PHP, executable, …) outright.
 - Per-user profile photos go through the same upload validation and storage
  pipeline as post media.
 ## Secrets and files
@@ -80,19 +111,27 @@ than opening a public issue.
 ## Transport
- Bind to `127.0.0.1` and terminate TLS at nginx. The browser ↔ nginx hop is
+- Bind to `::1` (loopback) and terminate TLS at nginx. The browser ↔ nginx hop
-  HTTPS; the nginx ↔ Puma hop is local.
+  is HTTPS; the nginx ↔ Uvicorn hop is local.
 ## Dependencies
-A small, audited set: `sinatra`, `kramdown` (+ `kramdown-parser-gfm`),
+A small, audited set declared in `pyproject.toml`:
-`toml-rb`, `puma`, `rackup`. Cryptography uses the Ruby standard library
+
-(`openssl`, `securerandom`).
+- Runtime: `fastapi[standard]` (FastAPI, Uvicorn, itsdangerous, Jinja2 transitively),
  `python-markdown`, `pymdown-extensions`, `tomli-w`, `python-multipart`.
  (`itsdangerous`, `Jinja2`, and `python-multipart` are pulled in directly
  too — see `pyproject.toml`.)
 - Crypto: Python standard library (`hashlib`, `secrets`, `hmac`).
 - Dev: `pytest`, `httpx`, `ruff`.
 ## Known limitations / non-goals
- **No rate limiting or lockout** on `/admin/login`. Put nginx `limit_req` in
+- **No rate limiting or lockout** on `/admin/login` at the application layer
-  front of it, or use fail2ban, to slow brute-force attempts.
+  beyond an in-memory per-IP sliding window (`MAX_LOGIN_ATTEMPTS = 10` per 60s
  in `__init__.py`). nginx is the durable line of defence — see
  `docs/deployment.md`. Put nginx `limit_req` in front of `/admin/login`, or use
  fail2ban, to slow brute-force attempts.
 - **No 2FA** and **no audit log**.
 - **Raw HTML in posts is trusted** (see the trust model). There is no built-in
  HTML sanitiser.
@@ -1,7 +1,5 @@
-#!/usr/bin/env ruby
+#!/usr/bin/env python3
-# frozen_string_literal: true
+"""Volumen — a small, file-based Markdown blog engine."""
 from volumen.cli import main
-require "volumen"
+main()
 require "volumen/cli"
 Volumen::CLI.run(ARGV)
@@ -1,178 +0,0 @@
 #!/usr/bin/env bash
 #
 # volumen one-shot installer for Linux + systemd.
 #
 # Run from a cloned repository as root:
 #   sudo ./install.sh
 #
 # The Ruby toolchain is installed automatically from the distro repositories on
 # Fedora and openEuler; on other distributions the script prints guidance and
 # expects Ruby >= 3.3 with a C toolchain to be present already.
 #
 # FreeBSD uses rc.d instead of systemd — see docs/deployment.md.
 set -euo pipefail
 VOLUMEN_USER="volumen"
 CONFIG_DIR="/etc/volumen"
 CONFIG_FILE="${CONFIG_DIR}/config.toml"
 DATA_DIR="/var/lib/volumen"
 CONTENT_DIR="${DATA_DIR}/posts"
 USERS_FILE="${DATA_DIR}/users.toml"
 SERVICE_FILE="/etc/systemd/system/volumen.service"
 MIN_RUBY="3.3"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 APP_DIR="${SCRIPT_DIR}"
 log()  { printf '\033[1;34m==>\033[0m %s\n' "$*"; }
 warn() { printf '\033[1;33mWARN:\033[0m %s\n' "$*" >&2; }
 die()  { printf '\033[1;31mERROR:\033[0m %s\n' "$*" >&2; exit 1; }
 require_root() {
  [ "$(id -u)" -eq 0 ] || die "Run as root: sudo ./install.sh"
 }
 detect_distro() {
  [ -r /etc/os-release ] || { printf 'unknown'; return; }
  # shellcheck disable=SC1091
  . /etc/os-release
  printf '%s' "$(printf '%s' "${ID:-unknown}" | tr '[:upper:]' '[:lower:]')"
 }
 install_toolchain() {
  case "$1" in
    fedora)
      log "Installing Ruby toolchain via dnf (Fedora)…"
      dnf install -y ruby ruby-devel gcc gcc-c++ make redhat-rpm-config openssl-devel
      ;;
    openeuler)
      log "Installing Ruby toolchain via dnf (openEuler)…"
      dnf install -y ruby ruby-devel gcc gcc-c++ make openssl-devel
      ;;
    *)
      warn "Automatic toolchain install is wired only for Fedora and openEuler."
      cat >&2 <<'EOF'
 Install Ruby >= 3.3 and a C toolchain manually, then re-run this script:
  Debian/Ubuntu: apt install ruby-full build-essential libssl-dev
  Arch:          pacman -S ruby base-devel openssl
  openSUSE:      zypper install ruby ruby-devel gcc make libopenssl-devel
 EOF
      ;;
  esac
 }
 check_ruby() {
  command -v ruby >/dev/null 2>&1 || die "Ruby not found; install Ruby >= ${MIN_RUBY} and re-run."
  local version
  version="$(ruby -e 'print RUBY_VERSION')"
  if ! MIN="$MIN_RUBY" ruby -e 'exit(Gem::Version.new(RUBY_VERSION) >= Gem::Version.new(ENV["MIN"]))'; then
    die "Ruby ${version} is too old; volumen needs >= ${MIN_RUBY}."
  fi
  log "Ruby ${version} OK."
 }
 ensure_bundler() {
  if ! command -v bundle >/dev/null 2>&1; then
    log "Installing bundler…"
    gem install --no-document bundler
  fi
 }
 create_user() {
  if id "$VOLUMEN_USER" >/dev/null 2>&1; then
    log "User ${VOLUMEN_USER} already exists."
  else
    log "Creating system user ${VOLUMEN_USER}…"
    useradd --system --home "$DATA_DIR" --shell /usr/sbin/nologin "$VOLUMEN_USER"
  fi
 }
 create_dirs() {
  log "Creating ${CONFIG_DIR} and ${CONTENT_DIR}…"
  mkdir -p "$CONFIG_DIR" "$CONTENT_DIR"
  chown -R "$VOLUMEN_USER:$VOLUMEN_USER" "$DATA_DIR"
 }
 install_gems() {
  log "Installing gem dependencies…"
  ( cd "$APP_DIR" && bundle install )
 }
 generate_config() {
  if [ -f "$CONFIG_FILE" ]; then
    log "Config ${CONFIG_FILE} already exists; leaving it untouched."
    return
  fi
  log "Generating ${CONFIG_FILE}…"
  ( cd "$APP_DIR" && bundle exec ruby -Ilib -rvolumen/config \
      -e 'Volumen::Config.generate_default(ARGV[0])' "$CONFIG_FILE" )
  sed -i 's/^host = .*/host = "127.0.0.1"/' "$CONFIG_FILE"
  sed -i "s#^content_dir = .*#content_dir = \"${CONTENT_DIR}\"#" "$CONFIG_FILE"
  sed -i "s#^users_file = .*#users_file = \"${USERS_FILE}\"#" "$CONFIG_FILE"
  chown "$VOLUMEN_USER:$VOLUMEN_USER" "$CONFIG_FILE"
  chmod 600 "$CONFIG_FILE"
 }
 install_service() {
  log "Installing systemd unit ${SERVICE_FILE}…"
  cat > "$SERVICE_FILE" <<EOF
 [Unit]
 Description=volumen blog engine
 After=network.target
 [Service]
 User=${VOLUMEN_USER}
 Group=${VOLUMEN_USER}
 WorkingDirectory=${APP_DIR}
 ExecStart=$(command -v bundle) exec exe/volumen serve --config ${CONFIG_FILE} --content ${CONTENT_DIR}
 Restart=on-failure
 RestartSec=2
 NoNewPrivileges=true
 ProtectSystem=strict
 ProtectHome=true
 ReadWritePaths=${DATA_DIR}
 PrivateTmp=true
 [Install]
 WantedBy=multi-user.target
 EOF
  systemctl daemon-reload
  systemctl enable volumen
 }
 final_notes() {
  cat <<EOF
 volumen is installed and the service is enabled (not started yet).
 Next steps:
  1. Create the first admin password (you will log in as user "admin"):
       cd ${APP_DIR}
       sudo -u ${VOLUMEN_USER} $(command -v bundle) exec exe/volumen hash-password
     Paste the printed hash into ${CONFIG_FILE} under [admin] password_hash.
  2. (Recommended) set a stable admin.session_key in the config:
       openssl rand -hex 64
  3. Start the service:
       sudo systemctl start volumen
  4. Put nginx in front of 127.0.0.1:9090 — see docs/deployment.md.
 EOF
 }
 main() {
  require_root
  local distro
  distro="$(detect_distro)"
  log "Detected distribution: ${distro}"
  install_toolchain "$distro"
  check_ruby
  ensure_bundler
  create_user
  create_dirs
  install_gems
  generate_config
  install_service
  final_notes
 }
 main "$@"
@@ -1,38 +1,30 @@
 set dotenv-load := false
 set positional-arguments := false
 default:
-	@just --list
+    @just --list
 # Install Ruby dependencies
 install:
-	@echo "→ Installing Ruby dependencies…"
+    uv sync
 	bundle install
 # Run the development server
 run:
-	@echo "→ Starting volumen…"
+    uv run volumen serve
 	bundle exec exe/volumen serve
 # Run the development server against ./posts and ./config.toml
 dev:
-	@echo "→ Starting volumen (dev) on http://localhost:9090 …"
+    uv run volumen serve --config ./config.toml --content ./posts
 	bundle exec exe/volumen serve --config ./config.toml --content ./posts
 # Lint and package the gem (must pass with zero warnings)
 build:
-	@echo "→ Linting…"
+    uv sync --frozen
-	bundle exec rubocop
+    just fmt-check
-	@echo "→ Building gem…"
+    just test
 	@mkdir -p pkg
 	gem build volumen.gemspec --output pkg/volumen.gem
 # Run the test suite
 test:
-	@echo "→ Running tests…"
+    uv run pytest
-	bundle exec rake test
+
 fmt:
    uv run ruff format src/ tests/ exe/
    uv run ruff check --fix src/ tests/ exe/
 fmt-check:
    uv run ruff format --check src/ tests/ exe/
    uv run ruff check src/ tests/ exe/
 # Remove build artifacts
 uninstall:
-	@echo "→ Removing build artifacts…"
+    rm -rf dist/ __pycache__ .pytest_cache .ruff_cache
 	rm -rf pkg *.gem
@@ -1,21 +0,0 @@
 # frozen_string_literal: true
 require_relative "volumen/version"
 require_relative "volumen/frontmatter"
 require_relative "volumen/markdown"
 require_relative "volumen/post"
 require_relative "volumen/store"
 require_relative "volumen/config"
 require_relative "volumen/password"
 require_relative "volumen/users"
 # volumen is a small, file-based Markdown blog engine.
 #
 # Posts are plain `.md` files with a TOML frontmatter block delimited by
 # `+++`. The engine exposes them as a JSON API and ships a server-rendered
 # admin with a Markdown source editor and a visual editor.
 #
 # The Sinatra app (`Volumen::Server`) and the CLI (`Volumen::CLI`) are loaded
 # on demand to keep the core library light.
 module Volumen
 end
@@ -1,87 +0,0 @@
 # frozen_string_literal: true
 require "optparse"
 require_relative "version"
 require_relative "config"
 require_relative "store"
 require_relative "password"
 module Volumen
  # Command-line interface: serve, hash-password, version, help.
  class CLI
    USAGE = <<~TEXT.freeze
      volumen #{Volumen::VERSION} — a small, file-based Markdown blog engine.
      Usage:
        volumen serve [--config PATH] [--content DIR] [--host HOST] [--port PORT]
        volumen hash-password
        volumen version
        volumen help
    TEXT
    def self.run(argv)
      new(argv).run
    end
    def initialize(argv)
      @argv = argv.dup
    end
    def run
      command = @argv.shift
      case command
      when "version", "--version", "-v" then puts Volumen::VERSION
      when "help", "--help", "-h", nil then puts USAGE
      when "serve" then serve
      when "hash-password" then hash_password
      else
        warn "volumen: unknown command #{command.inspect}\n\n#{USAGE}"
        exit 1
      end
    end
    private
    def serve
      options = parse_serve_options
      prepare_config(options[:config])
      config = Config.load(path: options[:config], overrides: options)
      require_relative "server"
      store = Store.new(config.content_dir, default_lang: config.language)
      app = Server.configured(config: config, store: store)
      app.run!(bind: config.host, port: config.port)
    end
    def parse_serve_options
      options = { config: Config::DEFAULT_PATH }
      OptionParser.new do |parser|
        parser.on("--config PATH") { |value| options[:config] = value }
        parser.on("--content DIR") { |value| options[:content] = value }
        parser.on("--host HOST") { |value| options[:host] = value }
        parser.on("--port PORT", Integer) { |value| options[:port] = value }
      end.parse!(@argv)
      options
    end
    def prepare_config(path)
      if Config.generate_default(path)
        warn "volumen: wrote a default config to #{path}; review it and restart."
      elsif !File.exist?(path)
        warn "volumen: config #{path} not found; using built-in defaults."
      end
    end
    def hash_password
      require "io/console"
      print "Password: "
      password = ($stdin.noecho(&:gets) || "").chomp
      puts
      if password.empty?
        warn "volumen: empty password"
        exit 1
      end
      puts Password.hash(password)
    end
  end
 end
@@ -1,136 +0,0 @@
 # frozen_string_literal: true
 require "toml-rb"
 require "fileutils"
 module Volumen
  # Loads and merges volumen configuration from a TOML file, then applies
  # command-line overrides on top of the file values and built-in defaults.
  class Config
    DEFAULT_PATH = "/etc/volumen/config.toml"
    DEFAULTS = {
      "server" => { "host" => "0.0.0.0", "port" => 9090 },
      "content_dir" => "/var/lib/volumen/posts",
      "users_file" => "/var/lib/volumen/users.toml",
      "site" => {
        "title" => "My Blog",
        "description" => "A blog powered by volumen.",
        "base_url" => "https://example.com",
        "language" => "en",
        "author" => "Anonymous"
      },
      "admin" => {
        "password_hash" => "",
        "session_key" => "",
        "session_ttl" => 86_400
      }
    }.freeze
    TEMPLATE = <<~TOML
      # volumen configuration.
      [server]
      host = "0.0.0.0"
      port = 9090
      # Directory of your Markdown posts (.md with TOML frontmatter).
      content_dir = "/var/lib/volumen/posts"
      # File storing admin users (managed from the admin Settings page).
      users_file = "/var/lib/volumen/users.toml"
      [site]
      title = "My Blog"
      description = "A blog powered by volumen."
      base_url = "https://example.com"
      language = "en"
      author = "Anonymous"
      [admin]
      # Bootstrap admin login: paste a hash from `volumen hash-password` to sign
      # in as user "admin". Once you manage users in Settings, users_file wins.
      password_hash = ""
      # Secret signing session cookies (>= 64 bytes). Empty = random per start.
      session_key = ""
      # Session lifetime in seconds (24h default).
      session_ttl = 86400
    TOML
    def self.load(path: DEFAULT_PATH, overrides: {})
      data = File.exist?(path) ? TomlRB.load_file(path) : {}
      merged = deep_merge(DEFAULTS, data)
      new(apply_overrides(merged, overrides))
    end
    # Writes the commented template to `path` if it does not exist yet.
    # Returns the path on success, or nil if it already existed or could not
    # be created.
    def self.generate_default(path)
      return nil if File.exist?(path)
      FileUtils.mkdir_p(File.dirname(path))
      File.write(path, TEMPLATE)
      path
    rescue SystemCallError
      nil
    end
    def self.deep_merge(base, override)
      base.merge(override) do |_key, base_val, override_val|
        if base_val.is_a?(Hash) && override_val.is_a?(Hash)
          deep_merge(base_val, override_val)
        else
          override_val
        end
      end
    end
    def self.apply_overrides(data, overrides)
      server = data["server"].dup
      server["host"] = overrides[:host] if overrides[:host]
      server["port"] = overrides[:port] if overrides[:port]
      result = data.dup
      result["server"] = server
      result["content_dir"] = overrides[:content] if overrides[:content]
      result
    end
    private_class_method :deep_merge, :apply_overrides
    attr_reader :data
    def initialize(data)
      @data = data
    end
    def host
      @data["server"]["host"]
    end
    def port
      @data["server"]["port"]
    end
    def content_dir
      @data["content_dir"]
    end
    def users_file
      @data["users_file"]
    end
    def site
      @data["site"]
    end
    def language
      @data["site"]["language"]
    end
    def admin
      @data["admin"]
    end
  end
 end
@@ -1,68 +0,0 @@
 # frozen_string_literal: true
 require "toml-rb"
 module Volumen
  # Parses and serialises the TOML frontmatter block of a Markdown file.
  #
  # A post file starts with a `+++` line, contains a TOML document, is closed
  # by another `+++` line, and is followed by the Markdown body:
  #
  #   +++
  #   title = "Hello"
  #   +++
  #
  #   Body in **Markdown**.
  module Frontmatter
    DELIMITER = "+++"
    # Returns `[metadata_hash, body_string]`. If the content has no
    # frontmatter, the metadata hash is empty and the body is the full input.
    def self.parse(content)
      text = normalize(content)
      lines = text.lines
      return [{}, text] unless delimiter?(lines.first)
      closing = closing_index(lines)
      return [{}, text] if closing.nil?
      toml = lines[1...closing].join
      body = lines[(closing + 1)..]&.join.to_s
      metadata = toml.strip.empty? ? {} : TomlRB.parse(toml)
      [metadata, body.sub(/\A\r?\n/, "")]
    end
    # Serialises metadata + body back into a single post file string.
    def self.dump(metadata, body)
      toml = serialize(metadata)
      buffer = "#{DELIMITER}\n"
      buffer << toml
      buffer << "\n" unless toml.empty? || toml.end_with?("\n")
      buffer << "#{DELIMITER}\n\n"
      buffer << body.to_s.sub(/\A\s+/, "")
      buffer.end_with?("\n") ? buffer : "#{buffer}\n"
    end
    def self.normalize(content)
      content.to_s.gsub("\r\n", "\n")
    end
    def self.closing_index(lines)
      index = lines[1..].index { |line| delimiter?(line) }
      index.nil? ? nil : index + 1
    end
    def self.delimiter?(line)
      line&.chomp&.strip == DELIMITER
    end
    def self.serialize(metadata)
      data = metadata || {}
      return "" if data.empty?
      TomlRB.dump(data)
    end
    private_class_method :normalize, :closing_index, :delimiter?, :serialize
  end
 end
@@ -1,23 +0,0 @@
 # frozen_string_literal: true
 require "kramdown"
 module Volumen
  # Renders Markdown to HTML using kramdown's GFM parser (tables, fenced code,
  # task lists, strikethrough).
  #
  # Posts are authored by the single trusted admin, so kramdown's default
  # behaviour of passing raw HTML through is intentional.
  module Markdown
    OPTIONS = {
      input: "GFM",
      auto_ids: true,
      hard_wrap: false,
      syntax_highlighter: nil
    }.freeze
    def self.render(text)
      ::Kramdown::Document.new(text.to_s, OPTIONS).to_html
    end
  end
 end
@@ -1,52 +0,0 @@
 # frozen_string_literal: true
 require "openssl"
 require "securerandom"
 module Volumen
  # Hashes and verifies admin passwords with scrypt (via OpenSSL::KDF).
  #
  # Encoded form: "scrypt$N$r$p$salt_base64$hash_base64".
  module Password
    COST_N = 16_384
    BLOCK_R = 8
    PARALLEL_P = 1
    KEY_LENGTH = 32
    SALT_BYTES = 16
    PREFIX = "scrypt"
    def self.hash(password)
      salt = SecureRandom.bytes(SALT_BYTES)
      derived = OpenSSL::KDF.scrypt(
        password.to_s, salt: salt, N: COST_N, r: BLOCK_R, p: PARALLEL_P, length: KEY_LENGTH
      )
      [PREFIX, COST_N, BLOCK_R, PARALLEL_P, encode(salt), encode(derived)].join("$")
    end
    def self.verify(password, encoded)
      parts = encoded.to_s.split("$")
      return false unless parts.length == 6 && parts.first == PREFIX
      _, cost, block, parallel, salt_b64, hash_b64 = parts
      salt = decode(salt_b64)
      expected = decode(hash_b64)
      derived = OpenSSL::KDF.scrypt(
        password.to_s, salt: salt,
                       N: cost.to_i, r: block.to_i, p: parallel.to_i, length: expected.bytesize
      )
      OpenSSL.fixed_length_secure_compare(derived, expected)
    rescue ArgumentError, OpenSSL::KDF::KDFError
      false
    end
    def self.encode(bytes)
      [bytes].pack("m0")
    end
    def self.decode(string)
      string.to_s.unpack1("m0")
    end
    private_class_method :encode, :decode
  end
 end
@@ -1,119 +0,0 @@
 # frozen_string_literal: true
 require "date"
 require_relative "frontmatter"
 require_relative "markdown"
 module Volumen
  # A single blog post: TOML frontmatter metadata plus a Markdown body.
  class Post
    attr_reader :metadata, :body
    attr_accessor :path
    def initialize(metadata: {}, body: "")
      @metadata = (metadata || {}).transform_keys(&:to_s)
      @body = body.to_s
    end
    def self.parse(content)
      metadata, body = Frontmatter.parse(content)
      new(metadata: metadata, body: body)
    end
    def slug
      metadata["slug"]
    end
    def title
      metadata["title"]
    end
    def lang
      metadata["lang"]
    end
    def author
      metadata["author"]
    end
    def tags
      Array(metadata["tags"]).map(&:to_s)
    end
    def draft?
      metadata["draft"] == true
    end
    def all_langs?
      metadata["all_langs"] == true
    end
    def translations
      metadata["translations"] || {}
    end
    def cover
      metadata["cover"]
    end
    def reading_time
      words = body.split(/\s+/).count { |word| !word.empty? }
      [(words / 200.0).ceil, 1].max
    end
    def date_string
      value = metadata["date"]
      case value
      when nil then nil
      when Date, Time then value.strftime("%Y-%m-%d")
      else value.to_s
      end
    end
    def excerpt
      text = metadata["excerpt"]
      return text if text && !text.to_s.empty?
      derived_excerpt
    end
    def html
      Markdown.render(body)
    end
    def to_file
      Frontmatter.dump(metadata, body)
    end
    def summary
      {
        "slug" => slug,
        "title" => title,
        "excerpt" => excerpt,
        "date" => date_string,
        "lang" => lang,
        "tags" => tags,
        "author" => author,
        "cover" => cover,
        "reading_time" => reading_time,
        "translations" => translations,
        "url" => "/api/volumen/posts/#{slug}"
      }
    end
    def detail
      summary.merge("body" => body, "html" => html)
    end
    private
    def derived_excerpt(limit = 200)
      paragraph = body.split(/\n\s*\n/).map(&:strip)
                      .find { |para| !para.empty? && !para.start_with?("#") }
      return "" if paragraph.nil?
      stripped = paragraph.gsub(/[*_`>#]/, "").strip
      stripped.length > limit ? "#{stripped[0, limit].rstrip}…" : stripped
    end
  end
 end
@@ -1,513 +0,0 @@
 # frozen_string_literal: true
 require "sinatra/base"
 require "json"
 require "date"
 require "securerandom"
 require_relative "config"
 require_relative "store"
 require_relative "markdown"
 require_relative "password"
 module Volumen
  # Sinatra application: the public JSON API at /api/volumen and the
  # server-rendered admin at /admin.
  class Server < Sinatra::Base
    configure do
      set :show_exceptions, false
      set :raise_errors, false
      set :host_authorization, { permitted_hosts: [] }
      set :views, File.expand_path("web/views", __dir__)
    end
    # Returns a configured subclass bound to a specific config + store.
    def self.configured(config:, store:)
      secret = session_secret(config)
      Class.new(self) do
        set :volumen_config, config
        set :volumen_store, store
        set :sessions, httponly: true, same_site: :strict
        set :session_secret, secret
      end
    end
    def self.session_secret(config)
      key = config.admin["session_key"].to_s
      key.bytesize >= 64 ? key : SecureRandom.hex(64)
    end
    # Mark the session cookie Secure only when the request is HTTPS (directly or
    # via a trusted X-Forwarded-Proto from nginx). Over plain HTTP (local dev)
    # the cookie stays usable so the admin login round-trips.
    before do
      options = request.env["rack.session.options"]
      options[:secure] = request.ssl? if options
    end
    # --- Public JSON API -------------------------------------------------
    before "/api/volumen/*" do
      headers "Access-Control-Allow-Origin" => "*"
      content_type :json
    end
    get "/api/volumen/site" do
      json(site_payload)
    end
    get "/api/volumen/posts" do
      json(posts_payload)
    end
    get "/api/volumen/posts/:slug" do
      post = store.find(params["slug"], lang: params["lang"])
      halt(404, json("error" => "not_found")) if post.nil?
      json(post.detail)
    end
    get "/api/volumen/tags" do
      json("tags" => tag_counts)
    end
    get "/api/volumen/feed.xml" do
      content_type "application/rss+xml"
      feed_xml
    end
    get "/api/volumen/sitemap.xml" do
      content_type "application/xml"
      sitemap_xml
    end
    # --- Admin -----------------------------------------------------------
    get "/admin" do
      redirect to("/admin/")
    end
    get "/admin/" do
      require_login!
      @posts = sorted_posts
      erb :list
    end
    get "/admin/login" do
      redirect to("/admin/") if authenticated?
      erb :login
    end
    post "/admin/login" do
      check_csrf!
      user = users.authenticate(params["username"], params["password"])
      if user
        session[:user] = user.username
        redirect to("/admin/")
      else
        @error = "Invalid username or password."
        erb :login
      end
    end
    post "/admin/logout" do
      check_csrf!
      session.clear
      redirect to("/admin/login")
    end
    get "/admin/posts/new" do
      require_login!
      @mode = :new
      @post = Post.new(metadata: { "lang" => config.language })
      erb :form
    end
    post "/admin/posts" do
      require_login!
      check_csrf!
      create_post
    end
    get "/admin/posts/:slug/edit" do
      require_login!
      @mode = :edit
      @post = store.find(params["slug"])
      halt(404, "Not found") if @post.nil?
      erb :form
    end
    post "/admin/posts/:slug" do
      require_login!
      check_csrf!
      update_post
    end
    post "/admin/posts/:slug/delete" do
      require_login!
      check_csrf!
      store.delete(params["slug"])
      redirect to("/admin/")
    end
    post "/admin/preview" do
      require_login!
      content_type :html
      Markdown.render(params["body"].to_s)
    end
    post "/admin/uploads" do
      require_login!
      check_csrf!
      content_type :json
      upload = params["file"]
      halt(400, json("error" => "no_file")) unless upload.is_a?(Hash) && upload[:tempfile]
      json("url" => store.store_upload(upload[:filename], upload[:tempfile]))
    end
    get "/media/*" do
      path = store.media_file(params["splat"].first)
      halt(404) if path.nil?
      send_file(path)
    end
    get "/admin/logo.svg" do
      send_file(File.expand_path("web/public/volumen-logo.svg", __dir__))
    end
    get "/admin/settings" do
      require_login!
      render_settings
    end
    post "/admin/settings/password" do
      require_login!
      check_csrf!
      change_password
    end
    post "/admin/settings/username" do
      require_login!
      check_csrf!
      change_username
    end
    post "/admin/settings/users" do
      require_login!
      require_admin!
      check_csrf!
      create_user
    end
    post "/admin/settings/users/:username/role" do
      require_login!
      require_admin!
      check_csrf!
      change_role(params["username"])
    end
    post "/admin/settings/users/:username/delete" do
      require_login!
      require_admin!
      check_csrf!
      remove_user(params["username"])
    end
    private
    def config
      settings.volumen_config
    end
    def store
      settings.volumen_store
    end
    # --- API helpers -----------------------------------------------------
    def json(data)
      JSON.generate(data)
    end
    def published_posts
      store.all.reject(&:draft?).sort_by { |post| post.date_string || "" }.reverse
    end
    def site_payload
      config.site.slice("title", "description", "base_url", "language", "author")
    end
    def posts_payload
      posts = filtered_posts
      page = positive_int(params["page"], 1)
      limit = positive_int(params["limit"], 20).clamp(1, 100)
      offset = (page - 1) * limit
      {
        "page" => page,
        "page_size" => limit,
        "total" => posts.length,
        "posts" => posts[offset, limit].to_a.map(&:summary)
      }
    end
    def filtered_posts
      posts = published_posts
      if params["lang"]
        lang = params["lang"]
        posts = posts.select { |post| post.lang == lang || post.all_langs? }
      end
      posts = posts.select { |post| post.tags.include?(params["tag"]) } if params["tag"]
      posts
    end
    def tag_counts
      counts = Hash.new(0)
      published_posts.each { |post| post.tags.each { |tag| counts[tag] += 1 } }
      counts.sort_by { |name, count| [-count, name] }
            .map { |name, count| { "name" => name, "count" => count } }
    end
    def positive_int(value, default)
      number = value.to_i
      number.positive? ? number : default
    end
    def base_url
      config.site["base_url"].to_s.chomp("/")
    end
    def feed_xml
      site = config.site
      items = published_posts.first(20).map { |post| feed_item(post) }.join("\n")
      <<~XML
        <?xml version="1.0" encoding="UTF-8"?>
        <rss version="2.0">
          <channel>
            <title>#{escape(site["title"])}</title>
            <link>#{escape(base_url)}</link>
            <description>#{escape(site["description"])}</description>
        #{items}
          </channel>
        </rss>
      XML
    end
    def feed_item(post)
      link = "#{base_url}/#{post.slug}"
      <<~XML.chomp
        <item>
          <title>#{escape(post.title)}</title>
          <link>#{escape(link)}</link>
          <guid>#{escape(link)}</guid>
          <description>#{escape(post.excerpt)}</description>
        </item>
      XML
    end
    def sitemap_xml
      urls = published_posts.map do |post|
        "  <url><loc>#{escape("#{base_url}/#{post.slug}")}</loc></url>"
      end.join("\n")
      <<~XML
        <?xml version="1.0" encoding="UTF-8"?>
        <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
        #{urls}
        </urlset>
      XML
    end
    def escape(text)
      Rack::Utils.escape_html(text.to_s)
    end
    alias h escape
    # --- Admin helpers ---------------------------------------------------
    def users
      Users.new(path: config.users_file, bootstrap_hash: config.admin["password_hash"])
    end
    def authenticated?
      !session[:user].to_s.empty?
    end
    def current_user
      session[:user]
    end
    def current_user_record
      users.find(current_user)
    end
    def current_role
      current_user_record&.role
    end
    def admin?
      current_role == "admin"
    end
    def require_login!
      redirect to("/admin/login") unless authenticated?
    end
    def require_admin!
      halt(403, "Forbidden") unless admin?
    end
    def csrf_token
      session[:csrf] ||= SecureRandom.hex(32)
    end
    def check_csrf!
      token = params["_csrf"]
      return if token && session[:csrf] && Rack::Utils.secure_compare(session[:csrf], token)
      halt(403, "Invalid CSRF token")
    end
    def render_settings(error: nil, notice: nil)
      @error = error
      @notice = notice
      @users = users.all
      erb :settings
    end
    def change_password
      unless users.authenticate(current_user, params["current_password"])
        return render_settings(error: "Current password is incorrect.")
      end
      fresh = presence(params["new_password"])
      return render_settings(error: "New password cannot be empty.") if fresh.nil?
      users.update_password(current_user, fresh)
      render_settings(notice: "Password updated.")
    end
    def change_username
      new_name = presence(params["username"])
      return render_settings(error: "Username cannot be empty.") if new_name.nil?
      if users.rename(current_user, new_name)
        session[:user] = new_name
        render_settings(notice: "Username updated.")
      else
        render_settings(error: "That username is already taken.")
      end
    end
    def create_user
      name = presence(params["username"])
      password = presence(params["password"])
      if name.nil? || password.nil?
        return render_settings(error: "Username and password are required.")
      end
      unless name.match?(/\A[a-zA-Z0-9._-]+\z/)
        return render_settings(error: "Username may use letters, numbers, dot, dash, underscore.")
      end
      if users.add(name, password, params["role"].to_s)
        render_settings(notice: "User added.")
      else
        render_settings(error: "That username already exists.")
      end
    end
    def remove_user(username)
      if username == current_user
        return render_settings(error: "You cannot delete your own account.")
      end
      if users.delete(username)
        render_settings(notice: "User removed.")
      else
        render_settings(error: "Cannot remove the last user or the last admin.")
      end
    end
    def change_role(username)
      return render_settings(error: "You cannot change your own role.") if username == current_user
      if users.set_role(username, params["role"].to_s)
        render_settings(notice: "Role updated.")
      else
        render_settings(error: "Could not change role (last admin?).")
      end
    end
    def sorted_posts
      store.all.sort_by { |post| post.date_string || "" }.reverse
    end
    def create_post
      post = post_from_params(params)
      error = creation_error(post)
      if error
        @mode = :new
        @post = post
        @error = error
        return erb(:form)
      end
      store.save(post)
      redirect to("/admin/")
    end
    def update_post
      existing = store.find(params["slug"])
      halt(404, "Not found") if existing.nil?
      store.save(post_from_params(params, existing: existing))
      redirect to("/admin/")
    end
    def creation_error(post)
      return "Slug is required." if presence(post.slug).nil?
      return "A post with that slug already exists." if store.find(post.slug)
      nil
    end
    def post_from_params(http_params, existing: nil)
      metadata = {
        "title" => presence(http_params["title"]),
        "slug" => presence(http_params["slug"]) || existing&.slug,
        "lang" => presence(http_params["lang"]),
        "author" => presence(http_params["author"]),
        "date" => parse_date(http_params["date"]),
        "tags" => parse_tags(http_params["tags"]),
        "excerpt" => presence(http_params["excerpt"]),
        "cover" => presence(http_params["cover"]),
        "draft" => http_params["draft"] == "on",
        "all_langs" => http_params["all_langs"] == "on"
      }
      post = Post.new(metadata: clean_metadata(metadata), body: http_params["body"].to_s)
      post.path = existing.path if existing
      post
    end
    def clean_metadata(metadata)
      metadata.reject { |_key, value| value.nil? || value == "" || value == [] || value == false }
    end
    def presence(value)
      text = value.to_s.strip
      text.empty? ? nil : text
    end
    def parse_date(value)
      text = presence(value)
      text && Date.iso8601(text)
    rescue ArgumentError
      nil
    end
    def parse_tags(value)
      presence(value).to_s.split(",").map(&:strip).reject(&:empty?)
    end
  end
 end
@@ -1,104 +0,0 @@
 # frozen_string_literal: true
 require "fileutils"
 require "securerandom"
 require_relative "post"
 module Volumen
  # Reads and writes Markdown posts in a content directory.
  #
  # Posts live either at `content_dir/<slug>.md` (default language) or at
  # `content_dir/<lang>/<slug>.md` (per-language subdirectory). Missing
  # `slug`/`lang` frontmatter is derived from the file path.
  class Store
    attr_reader :content_dir
    def initialize(content_dir, default_lang: nil)
      @content_dir = File.expand_path(content_dir.to_s)
      @default_lang = default_lang
    end
    def all
      markdown_files.filter_map { |path| load_post(path) }
    end
    def find(slug, lang: nil)
      all.find do |post|
        post.slug == slug && (lang.nil? || post.lang == lang || post.all_langs?)
      end
    end
    def save(post)
      target = post.path || default_path_for(post)
      FileUtils.mkdir_p(File.dirname(target))
      File.write(target, post.to_file)
      post.path = target
      post
    end
    def delete(slug, lang: nil)
      post = find(slug, lang: lang)
      File.delete(post.path) if post&.path
      post
    end
    def media_dir
      File.join(@content_dir, "media")
    end
    def store_upload(original_name, source)
      FileUtils.mkdir_p(media_dir)
      name = safe_media_name(original_name)
      File.open(File.join(media_dir, name), "wb") { |file| IO.copy_stream(source, file) }
      "/media/#{name}"
    end
    def media_file(name)
      path = File.join(media_dir, File.basename(name.to_s))
      return nil unless File.file?(path) && within?(media_dir, path)
      path
    end
    private
    def markdown_files
      Dir.glob(File.join(@content_dir, "**", "*.md"))
    end
    def load_post(path)
      post = Post.parse(File.read(path))
      post.metadata["slug"] ||= File.basename(path, ".md")
      post.metadata["lang"] ||= lang_from_path(path) || @default_lang
      post.path = path
      post
    rescue StandardError => e
      warn "volumen: skipping #{path}: #{e.message}"
      nil
    end
    def lang_from_path(path)
      parent = File.dirname(File.expand_path(path))
      return nil if parent == @content_dir
      File.basename(parent)
    end
    def default_path_for(post)
      File.join(@content_dir, "#{post.slug}.md")
    end
    def safe_media_name(original)
      base = File.basename(original.to_s)
      ext = File.extname(base).gsub(/[^a-zA-Z0-9.]/, "").downcase
      stem = File.basename(base, File.extname(base))
                 .gsub(/[^a-zA-Z0-9_-]+/, "-").gsub(/-+/, "-").downcase
      stem = "file" if stem.empty?
      "#{SecureRandom.hex(4)}-#{stem}#{ext}"
    end
    def within?(dir, path)
      File.expand_path(path).start_with?(File.expand_path(dir) + File::SEPARATOR)
    end
  end
 end
@@ -1,128 +0,0 @@
 # frozen_string_literal: true
 require "fileutils"
 require "toml-rb"
 require_relative "password"
 module Volumen
  # File-backed set of admin users, stored as a TOML `[[users]]` array.
  #
  # Each user has a role: "admin" (full access, including user management) or
  # "author" (posts and own account only). If the file does not exist yet, a
  # single bootstrap "admin" user is synthesised from the legacy
  # `admin.password_hash` config value.
  class Users
    ROLES = %w[admin author].freeze
    DEFAULT_ROLE = "author"
    User = Struct.new(:username, :password_hash, :role)
    def initialize(path:, bootstrap_hash: nil)
      @path = path
      @bootstrap_hash = bootstrap_hash.to_s
    end
    def all
      return read_file if File.exist?(@path)
      return [] if @bootstrap_hash.empty?
      [User.new("admin", @bootstrap_hash, "admin")]
    end
    def any?
      all.any?
    end
    def find(username)
      all.find { |user| user.username == username }
    end
    def authenticate(username, password)
      user = find(username)
      user if user && Password.verify(password, user.password_hash)
    end
    def add(username, password, role = DEFAULT_ROLE)
      return nil if username.to_s.empty? || find(username)
      user = User.new(username, Password.hash(password), normalize_role(role))
      persist(all + [user])
      user
    end
    def update_password(username, password)
      mutate(username) { |user| user.password_hash = Password.hash(password) }
    end
    def rename(current_name, new_name)
      return nil if new_name.to_s.empty? || find(new_name)
      mutate(current_name) { |user| user.username = new_name }
    end
    def set_role(username, role)
      return nil unless ROLES.include?(role)
      users = all
      user = users.find { |entry| entry.username == username }
      return nil if user.nil? || demoting_last_admin?(users, user, role)
      user.role = role
      persist(users)
      user
    end
    def delete(username)
      users = all
      target = users.find { |entry| entry.username == username }
      return nil if target.nil? || users.length <= 1 || last_admin?(users, target)
      persist(users.reject { |entry| entry.username == username })
      username
    end
    private
    def mutate(username)
      users = all
      user = users.find { |entry| entry.username == username }
      return nil if user.nil?
      yield user
      persist(users)
      user
    end
    def normalize_role(role)
      ROLES.include?(role) ? role : DEFAULT_ROLE
    end
    def admins(users)
      users.select { |user| user.role == "admin" }
    end
    def last_admin?(users, user)
      user.role == "admin" && admins(users).length <= 1
    end
    def demoting_last_admin?(users, user, role)
      user.role == "admin" && role != "admin" && admins(users).length <= 1
    end
    def read_file
      data = TomlRB.load_file(@path)
      Array(data["users"]).map do |entry|
        User.new(entry["username"], entry["password_hash"], entry["role"] || "admin")
      end
    end
    def persist(users)
      FileUtils.mkdir_p(File.dirname(@path))
      File.write(@path, TomlRB.dump("users" => users.map { |user| user_hash(user) }))
    end
    def user_hash(user)
      { "username" => user.username, "password_hash" => user.password_hash, "role" => user.role }
    end
  end
 end
@@ -1,5 +0,0 @@
 # frozen_string_literal: true
 module Volumen
  VERSION = "0.1.0"
 end
@@ -1,465 +0,0 @@
 <h1><%= @mode == :new ? "New post" : "Edit post" %></h1>
 <% if @error %>
  <p class="error"><%= h(@error) %></p>
 <% end %>
 <form id="post-form" method="post"
      action="<%= @mode == :new ? to("/admin/posts") : to("/admin/posts/#{@post.slug}") %>">
  <input type="hidden" name="_csrf" value="<%= csrf_token %>">
  <div class="fields">
    <label>Title <input type="text" name="title" value="<%= h(@post.title) %>"></label>
    <label>Slug
      <input type="text" name="slug" value="<%= h(@post.slug) %>"
             <%= @mode == :edit ? "readonly" : "required" %>>
    </label>
    <label>Language <input type="text" name="lang" value="<%= h(@post.lang) %>"></label>
    <label>Author <input type="text" name="author" value="<%= h(@post.author) %>"></label>
    <label>Date <input type="date" name="date" value="<%= h(@post.date_string) %>"></label>
    <label>Tags
      <input type="text" name="tags" value="<%= h(@post.tags.join(", ")) %>"
             placeholder="comma, separated">
    </label>
    <label class="check">
      <input type="checkbox" name="draft" <%= @post.draft? ? "checked" : "" %>> Draft
    </label>
    <label class="check">
      <input type="checkbox" name="all_langs" <%= @post.all_langs? ? "checked" : "" %>> All languages
    </label>
  </div>
  <div class="cover-field">
    <label for="cover-input">Cover image</label>
    <div class="cover-row">
      <input type="text" id="cover-input" name="cover" value="<%= h(@post.cover) %>"
             placeholder="/media/… or https://…">
      <button type="button" id="cover-upload">Upload</button>
      <button type="button" id="cover-clear">Clear</button>
    </div>
    <img id="cover-preview" class="cover-preview" alt="" hidden>
    <input type="file" id="cover-file" accept="image/*" hidden>
  </div>
  <div class="editor-tabs">
    <button type="button" data-tab="markdown" class="active">Markdown</button>
    <button type="button" data-tab="visual">Visual</button>
  </div>
  <div id="visual-view" hidden>
    <div class="pane">
      <div class="ed-toolbar">
        <button type="button" data-rich="bold" title="Bold (Ctrl+B)"><b>B</b></button>
        <button type="button" data-rich="italic" title="Italic (Ctrl+I)"><i>I</i></button>
        <button type="button" data-rich="h2" title="Heading 2">H2</button>
        <button type="button" data-rich="h3" title="Heading 3">H3</button>
        <button type="button" data-rich="link" title="Link (Ctrl+K)">Link</button>
        <button type="button" data-rich="ul" title="Bullet list">&bull; List</button>
        <button type="button" data-rich="ol" title="Numbered list">1. List</button>
        <button type="button" data-rich="quote" title="Quote">&ldquo;</button>
        <button type="button" data-rich="code" title="Inline code">&lt;/&gt;</button>
        <button type="button" data-rich="image" title="Image">Img</button>
        <button type="button" data-rich="clear" title="Paragraph">P</button>
      </div>
      <div id="wysiwyg" class="markdown" contenteditable="true"></div>
    </div>
  </div>
  <div id="markdown-view">
    <div class="editor">
      <div class="pane">
        <div class="ed-toolbar">
          <button type="button" data-md="bold" title="Bold (Ctrl+B)"><b>B</b></button>
          <button type="button" data-md="italic" title="Italic (Ctrl+I)"><i>I</i></button>
          <button type="button" data-md="h2" title="Heading">H2</button>
          <button type="button" data-md="link" title="Link (Ctrl+K)">Link</button>
          <button type="button" data-md="ul" title="List">List</button>
          <button type="button" data-md="quote" title="Quote">&ldquo;</button>
          <button type="button" data-md="code" title="Code">&lt;/&gt;</button>
          <button type="button" data-md="image" title="Image">Img</button>
          <button type="button" id="toggle-preview" class="toggle" title="Toggle preview">Preview</button>
        </div>
        <textarea id="body" name="body" rows="22"><%= h(@post.body) %></textarea>
      </div>
      <div class="pane preview-pane">
        <div class="ed-toolbar"><span>Preview</span></div>
        <div id="preview" class="markdown"></div>
      </div>
    </div>
  </div>
  <input type="file" id="image-input" accept="image/*" hidden>
  <button type="submit" class="primary">Save</button>
 </form>
 <script>
  (function () {
    var form = document.getElementById("post-form");
    var textarea = document.getElementById("body");
    var preview = document.getElementById("preview");
    var wysiwyg = document.getElementById("wysiwyg");
    var visualView = document.getElementById("visual-view");
    var markdownView = document.getElementById("markdown-view");
    var imageInput = document.getElementById("image-input");
    var coverInput = document.getElementById("cover-input");
    var coverFile = document.getElementById("cover-file");
    var coverPreview = document.getElementById("cover-preview");
    var previewUrl = "<%= to("/admin/preview") %>";
    var uploadUrl = "<%= to("/admin/uploads") %>";
    var csrf = "<%= csrf_token %>";
    var timer = null;
    try { document.execCommand("defaultParagraphSeparator", false, "p"); } catch (e) {}
    // --- Markdown <-> HTML -------------------------------------------------
    function mdToHtml(md) {
      var data = new URLSearchParams();
      data.set("body", md);
      data.set("_csrf", csrf);
      return fetch(previewUrl, {
        method: "POST",
        headers: { "Content-Type": "application/x-www-form-urlencoded" },
        body: data.toString()
      }).then(function (response) { return response.text(); });
    }
    function inlineToMd(node) {
      var out = "";
      node.childNodes.forEach(function (child) { out += inlineNode(child); });
      return out;
    }
    function inlineNode(node) {
      if (node.nodeType === 3) { return node.nodeValue.replace(/\s+/g, " "); }
      if (node.nodeType !== 1) { return ""; }
      var tag = node.tagName.toLowerCase();
      var inner = inlineToMd(node);
      if (tag === "strong" || tag === "b") { return "**" + inner.trim() + "**"; }
      if (tag === "em" || tag === "i") { return "*" + inner.trim() + "*"; }
      if (tag === "code") { return "`" + node.textContent + "`"; }
      if (tag === "a") { return "[" + inner + "](" + (node.getAttribute("href") || "") + ")"; }
      if (tag === "img") {
        return "![" + (node.getAttribute("alt") || "") + "](" + (node.getAttribute("src") || "") + ")";
      }
      if (tag === "br") { return "\n"; }
      return inner;
    }
    function listToMd(list, ordered) {
      var index = 1;
      var items = [];
      list.childNodes.forEach(function (li) {
        if (li.nodeType === 1 && li.tagName.toLowerCase() === "li") {
          var marker = ordered ? (index++ + ". ") : "- ";
          items.push(marker + inlineToMd(li).trim());
        }
      });
      return items.join("\n");
    }
    function htmlToMd(root) {
      var blocks = [];
      root.childNodes.forEach(function (node) {
        if (node.nodeType === 3) {
          var text = node.nodeValue.trim();
          if (text) { blocks.push(text); }
          return;
        }
        if (node.nodeType !== 1) { return; }
        var tag = node.tagName.toLowerCase();
        if (/^h[1-6]$/.test(tag)) {
          blocks.push("#".repeat(Number(tag.charAt(1))) + " " + inlineToMd(node).trim());
        } else if (tag === "ul" || tag === "ol") {
          blocks.push(listToMd(node, tag === "ol"));
        } else if (tag === "blockquote") {
          blocks.push(inlineToMd(node).trim().split("\n").map(function (line) {
            return "> " + line;
          }).join("\n"));
        } else if (tag === "pre") {
          blocks.push("```\n" + node.textContent.replace(/\n$/, "") + "\n```");
        } else if (tag === "hr") {
          blocks.push("---");
        } else {
          var content = inlineToMd(node).trim();
          if (content) { blocks.push(content); }
        }
      });
      return blocks.join("\n\n").replace(/\n{3,}/g, "\n\n").trim() + "\n";
    }
    // --- Live preview (markdown mode) -------------------------------------
    function renderPreview() {
      mdToHtml(textarea.value).then(function (html) { preview.innerHTML = html; });
    }
    function schedule() {
      clearTimeout(timer);
      timer = setTimeout(renderPreview, 250);
    }
    // --- Image upload ------------------------------------------------------
    function uploadImage(file, onDone) {
      var data = new FormData();
      data.append("file", file);
      data.append("_csrf", csrf);
      fetch(uploadUrl, { method: "POST", body: data })
        .then(function (response) { return response.json(); })
        .then(function (json) { if (json.url) { onDone(json.url); } });
    }
    imageInput.addEventListener("change", function () {
      var file = imageInput.files[0];
      if (!file) { return; }
      uploadImage(file, function (url) {
        if (visualView.hidden) {
          insertIntoTextarea("![](" + url + ")");
        } else {
          exec("insertImage", url);
        }
      });
      imageInput.value = "";
    });
    // --- Cover image -------------------------------------------------------
    function refreshCoverPreview() {
      if (coverInput.value) {
        coverPreview.src = coverInput.value;
        coverPreview.hidden = false;
      } else {
        coverPreview.hidden = true;
        coverPreview.removeAttribute("src");
      }
    }
    document.getElementById("cover-upload").addEventListener("click", function () {
      coverFile.click();
    });
    document.getElementById("cover-clear").addEventListener("click", function () {
      coverInput.value = "";
      refreshCoverPreview();
    });
    coverFile.addEventListener("change", function () {
      var file = coverFile.files[0];
      if (!file) { return; }
      uploadImage(file, function (url) {
        coverInput.value = url;
        refreshCoverPreview();
      });
      coverFile.value = "";
    });
    coverInput.addEventListener("input", refreshCoverPreview);
    refreshCoverPreview();
    // --- Markdown toolbar --------------------------------------------------
    function insertIntoTextarea(text) {
      var start = textarea.selectionStart;
      textarea.value = textarea.value.slice(0, start) + text + textarea.value.slice(textarea.selectionEnd);
      textarea.focus();
      textarea.selectionStart = textarea.selectionEnd = start + text.length;
      schedule();
    }
    function wrap(before, after) {
      var start = textarea.selectionStart;
      var end = textarea.selectionEnd;
      var selected = textarea.value.slice(start, end);
      textarea.value = textarea.value.slice(0, start) + before + selected + after +
        textarea.value.slice(end);
      textarea.focus();
      textarea.selectionStart = start + before.length;
      textarea.selectionEnd = end + before.length;
      schedule();
    }
    function linePrefix(prefix) {
      var start = textarea.selectionStart;
      var lineStart = textarea.value.lastIndexOf("\n", start - 1) + 1;
      textarea.value = textarea.value.slice(0, lineStart) + prefix + textarea.value.slice(lineStart);
      textarea.focus();
      schedule();
    }
    var mdActions = {
      bold: function () { wrap("**", "**"); },
      italic: function () { wrap("*", "*"); },
      code: function () { wrap("`", "`"); },
      link: function () { wrap("[", "](https://)"); },
      h2: function () { linePrefix("## "); },
      ul: function () { linePrefix("- "); },
      quote: function () { linePrefix("> "); },
      image: function () { imageInput.click(); }
    };
    // --- Visual toolbar ----------------------------------------------------
    function exec(command, value) {
      document.execCommand(command, false, value || null);
      wysiwyg.focus();
      updateToolbarState();
    }
    function wrapInline(tagName) {
      var selection = window.getSelection();
      if (!selection.rangeCount) { return; }
      var element = document.createElement(tagName);
      try { selection.getRangeAt(0).surroundContents(element); } catch (e) { /* spans blocks */ }
      wysiwyg.focus();
      updateToolbarState();
    }
    var richActions = {
      bold: function () { exec("bold"); },
      italic: function () { exec("italic"); },
      h2: function () { exec("formatBlock", "H2"); },
      h3: function () { exec("formatBlock", "H3"); },
      quote: function () { exec("formatBlock", "BLOCKQUOTE"); },
      clear: function () { exec("formatBlock", "P"); },
      ul: function () { exec("insertUnorderedList"); },
      ol: function () { exec("insertOrderedList"); },
      code: function () { wrapInline("code"); },
      image: function () { imageInput.click(); },
      link: function () { var url = prompt("Link URL", "https://"); if (url) { exec("createLink", url); } }
    };
    // --- Toolbar active state ----------------------------------------------
    function queryState(command) {
      try { return document.queryCommandState(command); } catch (e) { return false; }
    }
    function currentBlock() {
      try { return (document.queryCommandValue("formatBlock") || "").toLowerCase().replace(/[<>]/g, ""); }
      catch (e) { return ""; }
    }
    function selectionInEditor() {
      var node = window.getSelection().anchorNode;
      while (node) { if (node === wysiwyg) { return true; } node = node.parentNode; }
      return false;
    }
    function isInside(tagName) {
      var node = window.getSelection().anchorNode;
      while (node && node !== wysiwyg) {
        if (node.nodeType === 1 && node.tagName.toLowerCase() === tagName) { return true; }
        node = node.parentNode;
      }
      return false;
    }
    function updateToolbarState() {
      if (visualView.hidden) { return; }
      var active = {};
      if (selectionInEditor()) {
        var block = currentBlock();
        active = {
          bold: queryState("bold"),
          italic: queryState("italic"),
          ul: queryState("insertUnorderedList"),
          ol: queryState("insertOrderedList"),
          h2: block === "h2",
          h3: block === "h3",
          quote: block === "blockquote",
          link: isInside("a"),
          code: isInside("code")
        };
      }
      document.querySelectorAll("[data-rich]").forEach(function (button) {
        button.classList.toggle("active", !!active[button.dataset.rich]);
      });
    }
    // --- Mode switching ----------------------------------------------------
    function setActiveTab(name) {
      document.querySelectorAll(".editor-tabs button").forEach(function (button) {
        button.classList.toggle("active", button.dataset.tab === name);
      });
    }
    function showVisual() {
      mdToHtml(textarea.value).then(function (html) { wysiwyg.innerHTML = html; });
      visualView.hidden = false;
      markdownView.hidden = true;
      setActiveTab("visual");
    }
    function showMarkdown() {
      textarea.value = htmlToMd(wysiwyg);
      renderPreview();
      visualView.hidden = true;
      markdownView.hidden = false;
      setActiveTab("markdown");
    }
    // --- Keyboard shortcuts ------------------------------------------------
    function shortcut(actions) {
      return function (event) {
        if (!(event.ctrlKey || event.metaKey)) { return; }
        var key = event.key.toLowerCase();
        if (key === "b") { event.preventDefault(); actions.bold(); }
        else if (key === "i") { event.preventDefault(); actions.italic(); }
        else if (key === "k") { event.preventDefault(); actions.link(); }
      };
    }
    // --- Wiring ------------------------------------------------------------
    document.querySelectorAll("[data-md]").forEach(function (button) {
      button.addEventListener("click", function () { mdActions[button.dataset.md](); });
    });
    document.querySelectorAll("[data-rich]").forEach(function (button) {
      button.addEventListener("click", function () { richActions[button.dataset.rich](); });
    });
    document.querySelectorAll(".editor-tabs button").forEach(function (button) {
      button.addEventListener("click", function () {
        if (button.dataset.tab === "visual") { showVisual(); } else { showMarkdown(); }
      });
    });
    wysiwyg.addEventListener("paste", function (event) {
      event.preventDefault();
      var text = (event.clipboardData || window.clipboardData).getData("text/plain");
      document.execCommand("insertText", false, text);
    });
    wysiwyg.addEventListener("keydown", shortcut(richActions));
    wysiwyg.addEventListener("keyup", updateToolbarState);
    wysiwyg.addEventListener("mouseup", updateToolbarState);
    document.addEventListener("selectionchange", updateToolbarState);
    textarea.addEventListener("input", schedule);
    textarea.addEventListener("keydown", shortcut(mdActions));
    form.addEventListener("submit", function () {
      if (!visualView.hidden) { textarea.value = htmlToMd(wysiwyg); }
    });
    // --- Preview toggle (persisted) ---------------------------------------
    var editor = markdownView.querySelector(".editor");
    var togglePreviewBtn = document.getElementById("toggle-preview");
    function applyPreviewPreference() {
      var off = false;
      try { off = localStorage.getItem("volumen.preview") === "off"; } catch (e) {}
      editor.classList.toggle("no-preview", off);
      togglePreviewBtn.classList.toggle("active", !off);
      if (!off) { renderPreview(); }
    }
    togglePreviewBtn.addEventListener("click", function () {
      var turningOff = !editor.classList.contains("no-preview");
      try { localStorage.setItem("volumen.preview", turningOff ? "off" : "on"); } catch (e) {}
      applyPreviewPreference();
    });
    // Start in Markdown mode (primary).
    applyPreviewPreference();
  })();
 </script>
@@ -1,254 +0,0 @@
 <!DOCTYPE html>
 <html lang="<%= h(config.language) %>">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>volumen admin</title>
    <style>
      :root {
        color-scheme: light dark;
        --fg: #1b1b1f; --muted: #6b7280; --bg: #f6f7f9; --card: #ffffff;
        --border: #e4e4ec; --accent: #4f46e5; --accent-strong: #4338ca;
        --accent-weak: #eef2ff; --on-accent: #ffffff;
        --danger: #dc2626; --danger-weak: #fef2f2;
        --ok: #16a34a; --ok-weak: #f0fdf4;
        --ring: 0 0 0 3px rgba(79, 70, 229, 0.30);
        --shadow-sm: 0 1px 2px rgba(17, 17, 26, 0.06);
        --shadow: 0 1px 3px rgba(17, 17, 26, 0.06), 0 10px 30px -16px rgba(17, 17, 26, 0.25);
        --radius: 12px;
      }
      @media (prefers-color-scheme: dark) {
        :root {
          --fg: #e7e7ea; --muted: #9aa0aa; --bg: #121217; --card: #1c1c22;
          --border: #2c2c35; --accent: #818cf8; --accent-strong: #a5b4fc;
          --accent-weak: rgba(129, 140, 248, 0.16); --on-accent: #14141a;
          --danger: #f87171; --danger-weak: rgba(248, 113, 113, 0.14);
          --ok: #4ade80; --ok-weak: rgba(74, 222, 128, 0.14);
          --ring: 0 0 0 3px rgba(129, 140, 248, 0.40);
          --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
          --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px -16px rgba(0, 0, 0, 0.7);
        }
        .brand-logo { background: #f4f4f6; border-radius: 8px; padding: 4px 8px; }
      }
      * { box-sizing: border-box; }
      body { margin: 0; display: flex; min-height: 100vh; background: var(--bg); }
      /* Sidebar */
      .sidebar {
        width: 230px; flex-shrink: 0; position: sticky; top: 0; height: 100vh;
        overflow-y: auto; background: var(--card); border-right: 1px solid var(--border);
        display: flex; flex-direction: column; padding: 1.25rem 0;
      }
      .sidebar .brand { display: flex; padding: 0 1.25rem; margin-bottom: 1rem; text-decoration: none; }
      .brand-logo { height: 28px; display: block; }
      .sidebar .who {
        margin: 0 1.25rem; padding: 0.3rem 0.6rem; border: 1px solid var(--border);
        border-radius: 999px; font-size: 0.78rem; color: var(--muted); align-self: flex-start;
      }
      .sidenav { display: flex; flex-direction: column; gap: 1px; padding: 0.75rem 0.75rem; flex: 1; }
      .sidenav a, .sidenav button {
        display: flex; align-items: center; text-decoration: none; color: var(--fg);
        font: inherit; font-size: 0.9rem; font-weight: 500; padding: 0.55rem 0.8rem;
        border-radius: 9px; border: none; background: none; cursor: pointer;
        transition: background 0.15s, color 0.15s;
      }
      .sidenav a:hover, .sidenav button:hover { background: var(--accent-weak); color: var(--accent-strong); }
      .sidenav a.active { background: var(--accent); color: var(--on-accent); }
      .sidebar-footer { padding: 0.75rem 1rem; border-top: 1px solid var(--border); }
      /* Main */
      main {
        flex: 1; overflow: auto; padding: 2rem 2rem 4rem;
        color: var(--fg); font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
        -webkit-font-smoothing: antialiased;
      }
      .main-inner { max-width: 1060px; margin: 0 auto; }
      ::selection { background: var(--accent-weak); }
      a { color: var(--accent); }
      h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 1.25rem; }
      h2 { font-size: 1.15rem; font-weight: 650; margin: 0 0 0.75rem; }
      h3 { font-size: 0.95rem; font-weight: 650; }
      .toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
      .toolbar h1 { margin: 0; }
      /* Buttons */
      button, .button {
        font: inherit; font-weight: 550; cursor: pointer; display: inline-flex;
        align-items: center; gap: 0.4rem; border: 1px solid var(--border);
        background: var(--card); color: var(--fg); border-radius: 9px;
        padding: 0.45rem 0.9rem; text-decoration: none;
        transition: background 0.15s, border-color 0.15s, transform 0.05s, box-shadow 0.15s;
      }
      button:hover, .button:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
      button:active, .button:active { transform: translateY(1px); }
      button:focus-visible, .button:focus-visible,
      input:focus-visible, select:focus-visible, textarea:focus-visible,
      [contenteditable]:focus-visible, .sidenav a:focus-visible, .sidenav button:focus-visible {
        outline: none; box-shadow: var(--ring);
      }
      button.primary, .button.primary {
        background: var(--accent); border-color: var(--accent); color: var(--on-accent);
        box-shadow: var(--shadow-sm);
      }
      button.primary:hover, .button.primary:hover {
        background: var(--accent-strong); border-color: var(--accent-strong);
      }
      button.danger {
        color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--border));
        background: transparent;
      }
      button.danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
      form.inline { display: inline; margin: 0; }
      /* Cards */
      .card {
        background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
        padding: 1.5rem; margin-bottom: 1.5rem; box-shadow: var(--shadow);
      }
      .card h2 { margin-top: 0; }
      .card h3 { margin: 1.5rem 0 0.6rem; }
      .card form { margin-bottom: 1.25rem; }
      .card label { max-width: 380px; margin: 0.5rem 0; }
      /* Forms */
      .fields { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; margin-bottom: 1.25rem; }
      label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.8rem;
        font-weight: 550; color: var(--muted); }
      label.check { flex-direction: row; align-items: center; gap: 0.5rem; }
      .cover-field { margin-bottom: 1rem; }
      .cover-field > label { display: block; font-size: 0.8rem; font-weight: 550;
        color: var(--muted); margin-bottom: 0.3rem; }
      .cover-row { display: flex; gap: 0.5rem; align-items: center; }
      .cover-row input { flex: 1; }
      .cover-preview { margin-top: 0.6rem; max-height: 120px; border-radius: 8px;
        border: 1px solid var(--border); display: block; }
      input[type=text], input[type=password], input[type=date], input:not([type]), select, textarea {
        font: inherit; color: var(--fg); background: var(--bg);
        border: 1px solid var(--border); border-radius: 9px; padding: 0.5rem 0.7rem;
        transition: border-color 0.15s, box-shadow 0.15s;
      }
      input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
      /* Tables */
      table {
        width: 100%; border-collapse: collapse; background: var(--card);
        border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
        box-shadow: var(--shadow); margin-bottom: 1.5rem;
      }
      th, td { text-align: left; padding: 0.7rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
      th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted);
        background: color-mix(in srgb, var(--bg) 60%, var(--card)); }
      tbody tr:hover td { background: color-mix(in srgb, var(--accent-weak) 50%, transparent); }
      tr:last-child td { border-bottom: none; }
      td.actions { display: flex; gap: 0.5rem; align-items: center; }
      /* Alerts */
      .error, .notice {
        border: 1px solid; border-radius: 10px; padding: 0.7rem 0.95rem; margin: 0 0 1.25rem;
        font-size: 0.9rem;
      }
      .error { color: var(--danger); background: var(--danger-weak);
        border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
      .notice { color: var(--ok); background: var(--ok-weak);
        border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
      .muted { color: var(--muted); }
      /* Login */
      .login {
        max-width: 380px; margin: 4rem auto; background: var(--card);
        border: 1px solid var(--border); border-radius: var(--radius);
        padding: 2rem; box-shadow: var(--shadow);
      }
      .login h1 { text-align: center; }
      .login label, .login button { width: 100%; }
      .login button { margin-top: 1.25rem; justify-content: center; }
      /* Editor */
      .editor-tabs {
        display: inline-flex; gap: 2px; background: var(--card); padding: 3px;
        border: 1px solid var(--border); border-radius: 10px; margin-bottom: 0.9rem;
      }
      .editor-tabs button { border: none; background: transparent; color: var(--muted);
        border-radius: 7px; padding: 0.35rem 0.95rem; font-size: 0.85rem; }
      .editor-tabs button.active { background: var(--accent); color: var(--on-accent); }
      .editor { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.25rem; }
      .editor.no-preview { grid-template-columns: 1fr; }
      .editor.no-preview .preview-pane { display: none; }
      .pane { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
        background: var(--card); box-shadow: var(--shadow-sm); }
      .ed-toolbar { display: flex; gap: 0.3rem; padding: 0.45rem; align-items: center;
        border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--bg) 50%, var(--card)); }
      .ed-toolbar button { padding: 0.28rem 0.55rem; font-size: 0.82rem; border-radius: 7px;
        background: transparent; }
      .ed-toolbar button:hover { background: var(--accent-weak); }
      .ed-toolbar button.active { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
      .ed-toolbar span { color: var(--muted); font-size: 0.78rem; font-weight: 550; }
      .ed-toolbar .toggle { margin-left: auto; }
      textarea { width: 100%; border: none; border-radius: 0; padding: 0.85rem 1rem;
        font: 13.5px/1.65 ui-monospace, SFMono-Regular, Menlo, monospace; resize: vertical;
        background: var(--card); color: var(--fg); }
      textarea:focus { box-shadow: none; }
      #preview, #wysiwyg { padding: 0.85rem 1.1rem; min-height: 22rem; }
      #wysiwyg { outline: none; }
      #wysiwyg:focus { box-shadow: inset 0 0 0 2px var(--accent); }
      #preview img, #wysiwyg img { max-width: 100%; }
      [hidden] { display: none !important; }
      /* Rendered Markdown */
      .markdown { line-height: 1.7; }
      .markdown > :first-child { margin-top: 0; }
      .markdown h1, .markdown h2, .markdown h3, .markdown h4 { line-height: 1.25; margin: 1.4em 0 0.5em; }
      .markdown h1 { font-size: 1.6rem; }
      .markdown h2 { font-size: 1.3rem; }
      .markdown h3 { font-size: 1.1rem; }
      .markdown p { margin: 0.7em 0; }
      .markdown a { color: var(--accent); }
      .markdown ul, .markdown ol { padding-left: 1.5rem; margin: 0.7em 0; }
      .markdown li { margin: 0.2em 0; }
      .markdown blockquote { margin: 0.9em 0; padding: 0.3em 1rem; border-left: 3px solid var(--accent);
        color: var(--muted); background: var(--accent-weak); border-radius: 0 8px 8px 0; }
      .markdown code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em;
        background: var(--bg); border: 1px solid var(--border); border-radius: 5px; padding: 0.1em 0.35em; }
      .markdown pre { background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
        padding: 0.9rem 1rem; overflow-x: auto; margin: 0.9em 0; }
      .markdown pre code { background: none; border: none; padding: 0; font-size: 0.88em; }
      .markdown table { border-collapse: collapse; width: 100%; margin: 0.9em 0; font-size: 0.95em;
        box-shadow: none; }
      .markdown th, .markdown td { border: 1px solid var(--border); padding: 0.45rem 0.7rem; text-align: left; }
      .markdown thead th { background: var(--accent-weak); color: var(--fg); }
      .markdown tbody tr:hover td { background: transparent; }
      .markdown hr { border: none; border-top: 1px solid var(--border); margin: 1.4em 0; }
      .markdown img { max-width: 100%; border-radius: 8px; }
      @media (prefers-reduced-motion: reduce) {
        * { transition: none !important; }
      }
    </style>
  </head>
  <body>
    <aside class="sidebar">
      <a class="brand" href="<%= to("/admin/") %>"><img class="brand-logo" src="<%= to("/admin/logo.svg") %>" alt="volumen"></a>
      <% if authenticated? %>
        <span class="who"><%= h(current_user) %> · <%= h(current_role) %></span>
        <% settings_active = request.path_info.start_with?("/admin/settings") %>
        <nav class="sidenav">
          <a href="<%= to("/admin/") %>" class="<%= settings_active ? "" : "active" %>">Posts</a>
          <a href="<%= to("/admin/settings") %>" class="<%= settings_active ? "active" : "" %>">Settings</a>
        </nav>
        <div class="sidebar-footer">
          <form method="post" action="<%= to("/admin/logout") %>">
            <input type="hidden" name="_csrf" value="<%= csrf_token %>">
            <button type="submit">Log out</button>
          </form>
        </div>
      <% end %>
    </aside>
    <main>
      <div class="main-inner">
        <%= yield %>
      </div>
    </main>
  </body>
 </html>
@@ -1,34 +0,0 @@
 <div class="toolbar">
  <h1>Posts</h1>
  <a class="button primary" href="<%= to("/admin/posts/new") %>">New post</a>
 </div>
 <% if @posts.empty? %>
  <p>No posts yet. Create your first one.</p>
 <% else %>
  <table>
    <thead>
      <tr><th>Title</th><th>Slug</th><th>Lang</th><th>Date</th><th>Draft</th><th></th></tr>
    </thead>
    <tbody>
      <% @posts.each do |post| %>
        <tr>
          <td><%= h(post.title) %></td>
          <td><%= h(post.slug) %></td>
          <td><%= h(post.lang) %></td>
          <td><%= h(post.date_string) %></td>
          <td><%= post.draft? ? "yes" : "" %></td>
          <td class="actions">
            <a href="<%= to("/admin/posts/#{post.slug}/edit") %>">Edit</a>
            <form class="inline" method="post"
                  action="<%= to("/admin/posts/#{post.slug}/delete") %>"
                  onsubmit="return confirm('Delete this post?');">
              <input type="hidden" name="_csrf" value="<%= csrf_token %>">
              <button type="submit" class="danger">Delete</button>
            </form>
          </td>
        </tr>
      <% end %>
    </tbody>
  </table>
 <% end %>
@@ -1,23 +0,0 @@
 <div class="login">
  <h1>Sign in</h1>
  <% if @error %>
    <p class="error"><%= h(@error) %></p>
  <% end %>
  <% unless users.any? %>
    <p class="error">
      No users are configured. Set <code>admin.password_hash</code> in your
      config (you will sign in as <code>admin</code>) or generate one with
      <code>volumen hash-password</code>.
    </p>
  <% end %>
  <form method="post" action="<%= to("/admin/login") %>">
    <input type="hidden" name="_csrf" value="<%= csrf_token %>">
    <label>Username
      <input type="text" name="username" autofocus autocomplete="username">
    </label>
    <label>Password
      <input type="password" name="password" autocomplete="current-password">
    </label>
    <button type="submit" class="primary">Sign in</button>
  </form>
 </div>
@@ -1,86 +0,0 @@
 <h1>Settings</h1>
 <% if @notice %><p class="notice"><%= h(@notice) %></p><% end %>
 <% if @error %><p class="error"><%= h(@error) %></p><% end %>
 <section class="card">
  <h2>Your account</h2>
  <p class="muted">Signed in as <strong><%= h(current_user) %></strong> (<%= h(current_role) %>).</p>
  <form method="post" action="<%= to("/admin/settings/password") %>">
    <input type="hidden" name="_csrf" value="<%= csrf_token %>">
    <h3>Change password</h3>
    <label>Current password
      <input type="password" name="current_password" autocomplete="current-password">
    </label>
    <label>New password
      <input type="password" name="new_password" autocomplete="new-password">
    </label>
    <button type="submit" class="primary">Update password</button>
  </form>
  <form method="post" action="<%= to("/admin/settings/username") %>">
    <input type="hidden" name="_csrf" value="<%= csrf_token %>">
    <h3>Change username</h3>
    <label>New username <input type="text" name="username" value="<%= h(current_user) %>"></label>
    <button type="submit">Update username</button>
  </form>
 </section>
 <% if admin? %>
  <section class="card">
    <h2>Users</h2>
    <table>
      <thead><tr><th>Username</th><th>Role</th><th></th></tr></thead>
      <tbody>
        <% @users.each do |user| %>
          <tr>
            <td><%= h(user.username) %><%= user.username == current_user ? " (you)" : "" %></td>
            <td>
              <% if user.username == current_user %>
                <%= h(user.role) %>
              <% else %>
                <form class="inline" method="post"
                      action="<%= to("/admin/settings/users/#{user.username}/role") %>">
                  <input type="hidden" name="_csrf" value="<%= csrf_token %>">
                  <select name="role" onchange="this.form.submit()">
                    <% Volumen::Users::ROLES.each do |role| %>
                      <option value="<%= role %>" <%= user.role == role ? "selected" : "" %>><%= role %></option>
                    <% end %>
                  </select>
                </form>
              <% end %>
            </td>
            <td class="actions">
              <% unless user.username == current_user %>
                <form class="inline" method="post"
                      action="<%= to("/admin/settings/users/#{user.username}/delete") %>"
                      onsubmit="return confirm('Remove this user?');">
                  <input type="hidden" name="_csrf" value="<%= csrf_token %>">
                  <button type="submit" class="danger">Remove</button>
                </form>
              <% end %>
            </td>
          </tr>
        <% end %>
      </tbody>
    </table>
    <form method="post" action="<%= to("/admin/settings/users") %>">
      <input type="hidden" name="_csrf" value="<%= csrf_token %>">
      <h3>Add user</h3>
      <div class="fields">
        <label>Username <input type="text" name="username"></label>
        <label>Password <input type="password" name="password" autocomplete="new-password"></label>
        <label>Role
          <select name="role">
            <% Volumen::Users::ROLES.each do |role| %>
              <option value="<%= role %>" <%= role == Volumen::Users::DEFAULT_ROLE ? "selected" : "" %>><%= role %></option>
            <% end %>
          </select>
        </label>
      </div>
      <button type="submit" class="primary">Add user</button>
    </form>
  </section>
 <% end %>
@@ -0,0 +1,96 @@
 [build-system]
 requires = ["setuptools>=75", "wheel"]
 build-backend = "setuptools.build_meta"
 [project]
 name = "volumen"
 version = "0.4.1"
 description = "A small, file-based Markdown blog engine with a built-in admin."
 readme = "README.md"
 keywords = ["blog", "markdown", "fastapi", "cms", "static-blog", "toml", "rss", "json-feed", "engine"]
 requires-python = ">=3.14"
 license = {text = "MIT"}
 authors = [{name = "Petr Balvín", email = "opensource@petrbalvin.org"}]
 classifiers = [
    "Development Status :: 4 - Beta",
    "Environment :: Web Environment",
    "Framework :: FastAPI",
    "Intended Audience :: End Users/Desktop",
    "License :: OSI Approved :: MIT License",
    "Operating System :: POSIX :: Linux",
    "Operating System :: POSIX :: BSD",
    "Programming Language :: Python :: 3",
    "Programming Language :: Python :: 3 :: Only",
    "Programming Language :: Python :: 3.14",
    "Programming Language :: Python :: 3.13",
    "Programming Language :: Python :: 3.14",
    "Topic :: Internet :: WWW/HTTP",
    "Topic :: Text Processing :: Markup :: Markdown",
    "Typing :: Typed",
 ]
 dependencies = [
    "fastapi[standard]>=0.115",
    "itsdangerous>=2.2",
    "jinja2>=3.1",
    "markdown>=3.7",
    "nh3>=0.2",
    "pymdown-extensions>=10.14",
    "tomli-w>=1.2",
    "python-multipart>=0.0.20",
 ]
 [project.scripts]
 volumen = "volumen.cli:main"
 [project.urls]
 Homepage = "https://sourcedock.dev/petrbalvin/volumen"
 Repository = "https://sourcedock.dev/petrbalvin/volumen"
 Issues = "https://sourcedock.dev/petrbalvin/volumen/issues"
 Changelog = "https://sourcedock.dev/petrbalvin/volumen/blob/main/CHANGELOG.md"
 Documentation = "https://sourcedock.dev/petrbalvin/volumen/blob/main/docs"
 [dependency-groups]
 dev = [
    "pytest>=8",
    "pytest-cov>=5",
    "httpx2>=2.7",
    "ruff>=0.9",
 ]
 [tool.setuptools.packages.find]
 where = ["src"]
 [tool.setuptools.package-data]
 volumen = ["web/static/*"]
 [tool.ruff]
 line-length = 100
 indent-width = 4
 [tool.ruff.format]
 quote-style = "double"
 [tool.ruff.lint]
 select = ["E", "F", "W", "I", "N", "UP", "B", "SIM", "C4"]
 [tool.ruff.lint.per-file-ignores]
 "src/volumen/admin_auth_routes.py" = ["B008"]
 "src/volumen/admin_media_routes.py" = ["B008"]
 "src/volumen/admin_post_routes.py" = ["B008"]
 "src/volumen/admin_settings_routes.py" = ["B008"]
 "src/volumen/api_routes.py" = ["B008"]
 [tool.coverage.run]
 branch = true
 source = ["volumen"]
 [tool.coverage.report]
 show_missing = true
 skip_covered = false
 fail_under = 80
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 addopts = "--cov=volumen --cov-report=term-missing --cov-fail-under=80"
@@ -0,0 +1,86 @@
 from __future__ import annotations
 import logging
 import threading
 import time
 from collections import OrderedDict
 logger = logging.getLogger(__name__)
 # ``volumen.version.VERSION`` is authoritative; re-export here for
 # backwards compatibility with ``from volumen import VERSION``.
 from .version import VERSION  # noqa: E402,F401
 CLEANUP_INTERVAL: int = 300
 # Track login attempts with an LRU-bounded OrderedDict so that the
 # dictionary cannot grow unbounded under sustained probing. Keys are
 # client IP addresses; values are monotonic timestamps of recent
 # attempts.
 _MAX_LOGIN_TRACKED_IPS = 10_000
 _login_attempts: OrderedDict[str, list[float]] = OrderedDict()
 _last_cleanup: float | None = None
 LOGIN_WINDOW: float = 60.0
 MAX_LOGIN_ATTEMPTS: int = 10
 _login_lock = threading.Lock()
 def login_attempts() -> OrderedDict[str, list[float]]:
    """Return the global login-attempts tracking dict."""
    return _login_attempts
 def reset_login_attempts() -> None:
    """Clear all tracked login attempts (useful in tests)."""
    with _login_lock:
        global _login_attempts, _last_cleanup
        _login_attempts = OrderedDict()
        _last_cleanup = None
 def sweep_login_attempts(window: float = LOGIN_WINDOW) -> None:
    """Remove login attempts older than ``window`` seconds.
    Full sweeps only run every ``CLEANUP_INTERVAL`` seconds to avoid
    needless work on every request. The dict is bounded by
    ``_MAX_LOGIN_TRACKED_IPS`` (LRU eviction).
    """
    global _last_cleanup
    now = time.monotonic()
    if _last_cleanup is not None and (now - _last_cleanup) < CLEANUP_INTERVAL:
        return
    cutoff = now - window
    for ip in list(_login_attempts.keys()):
        attempts = [t for t in _login_attempts[ip] if t > cutoff]
        if attempts:
            _login_attempts[ip] = attempts
        else:
            _login_attempts.pop(ip, None)
    # Bound the dict size with LRU eviction.
    while len(_login_attempts) > _MAX_LOGIN_TRACKED_IPS:
        _login_attempts.popitem(last=False)
    _last_cleanup = now
 def record_login_attempt(ip: str, now: float | None = None) -> int:
    """Record a login attempt for *ip* and return the current count in the window.
    Uses ``time.monotonic()`` exclusively to avoid skew with wall-clock
    changes.
    """
    with _login_lock:
        sweep_login_attempts()
        if now is None:
            now = time.monotonic()
        cutoff = now - LOGIN_WINDOW
        attempts = _login_attempts.get(ip)
        if attempts is None:
            attempts = []
            _login_attempts[ip] = attempts
        else:
            attempts[:] = [t for t in attempts if t > cutoff]
            # Mark as recently used.
            _login_attempts.move_to_end(ip)
        attempts.append(now)
        return len(attempts)
@@ -0,0 +1,80 @@
 """Administrative authentication routes."""
 from __future__ import annotations
 from typing import Annotated
 from fastapi import APIRouter, Depends, Request
 from fastapi.responses import HTMLResponse, RedirectResponse
 from starlette.concurrency import run_in_threadpool
 from .app import templates
 from .auth import admin_context, check_login_rate_limit, validate_csrf_form
 from .config import Config
 from .dependencies import get_config, get_store, get_users
 from .store import Store
 from .users import Users
 ConfigDep = Annotated[Config, Depends(get_config)]
 StoreDep = Annotated[Store, Depends(get_store)]
 UsersDep = Annotated[Users, Depends(get_users)]
 router = APIRouter(prefix="/admin")
@router.get("", include_in_schema=False)
 async def admin_root() -> RedirectResponse:
    """Redirect bare ``/admin`` to ``/admin/``."""
    return RedirectResponse(url="/admin/", status_code=303)
@router.get("/login")
 async def admin_login_form(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
 ) -> HTMLResponse:
    """Show the login form, or redirect authenticated users."""
    if request.session.get("user", ""):
        return RedirectResponse(url="/admin/", status_code=303)
    context = admin_context(request, config, store, users_obj)
    return templates.TemplateResponse(request, "login.html.jinja", context)
@router.post("/login")
 async def admin_login(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
 ) -> HTMLResponse:
    """Authenticate the user and redirect to the admin dashboard."""
    check_login_rate_limit(request)
    await validate_csrf_form(request)
    form = await request.form()
    username = str(form.get("username", ""))
    password = str(form.get("password", ""))
    authenticated_user = await run_in_threadpool(users_obj.authenticate, username, password)
    if authenticated_user:
        request.session["user"] = authenticated_user.username
        return RedirectResponse(url="/admin/", status_code=303)
    context = admin_context(
        request,
        config,
        store,
        users_obj,
        error="Invalid username or password.",
    )
    return templates.TemplateResponse(request, "login.html.jinja", context, status_code=401)
@router.post("/logout")
 async def admin_logout(request: Request) -> RedirectResponse:
    """Clear the session and redirect to the login page."""
    await validate_csrf_form(request)
    request.session.clear()
    return RedirectResponse(url="/admin/login", status_code=303)
@@ -0,0 +1,24 @@
 """Uploaded media serving routes."""
 from __future__ import annotations
 from typing import Annotated
 from fastapi import APIRouter, Depends, HTTPException
 from fastapi.responses import FileResponse
 from starlette.concurrency import run_in_threadpool
 from .dependencies import get_store
 from .store import Store
 router = APIRouter(prefix="/media")
 StoreDep = Annotated[Store, Depends(get_store)]
@router.get("/{path:path}")
 async def serve_media(path: str, store: StoreDep) -> FileResponse:
    """Serve an uploaded media file through Store media resolution."""
    file_path = await run_in_threadpool(store.media_file, path)
    if file_path is None:
        raise HTTPException(status_code=404)
    return FileResponse(file_path)
@@ -0,0 +1,238 @@
 """Administrative post, preview, and upload routes."""
 from __future__ import annotations
 import json
 from pathlib import Path
 from typing import Annotated
 from fastapi import APIRouter, Depends, HTTPException, Request, UploadFile
 from fastapi.responses import FileResponse, HTMLResponse, JSONResponse, RedirectResponse
 from starlette.concurrency import run_in_threadpool
 from .app import templates
 from .auth import admin_context, validate_csrf_form
 from .config import Config
 from .dependencies import get_config, get_store, get_users, require_login
 from .payloads import creation_error, post_from_params
 from .post import Post
 from .store import Store
 from .upload_validation import validate_upload
 from .users import Users
 ConfigDep = Annotated[Config, Depends(get_config)]
 StoreDep = Annotated[Store, Depends(get_store)]
 UsersDep = Annotated[Users, Depends(get_users)]
 LoginDep = Annotated[str, Depends(require_login)]
 router = APIRouter(prefix="/admin")
 _PKG_DIR = Path(__file__).resolve().parent
 _PUBLIC_DIR = _PKG_DIR / "web" / "static"
@router.get("/")
 async def admin_index(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Show the admin post list."""
    posts = await run_in_threadpool(_all_posts_sorted, store)
    context = admin_context(
        request,
        config,
        store,
        users_obj,
        posts=posts,
        crumbs=[("Posts", None)],
    )
    return templates.TemplateResponse(request, "list.html.jinja", context)
 def _all_posts_sorted(store: Store) -> list[Post]:
    return sorted(store.all(), key=lambda post: post.date_string or "", reverse=True)
@router.get("/posts/new")
 async def admin_post_new(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Show the new-post form."""
    post = Post(metadata={"lang": config.language})
    context = admin_context(
        request,
        config,
        store,
        users_obj,
        mode="new",
        post=post,
        crumbs=[("Posts", "/admin/"), ("New post", None)],
    )
    return templates.TemplateResponse(request, "form.html.jinja", context)
@router.post("/posts")
 async def admin_create_post(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Create a new post from form data."""
    await validate_csrf_form(request)
    form = await request.form()
    form_dict: dict[str, str] = {
        key: value for key, value in form.items() if isinstance(value, str)
    }
    post = post_from_params(form_dict)
    error = creation_error(post, store)
    if error:
        context = admin_context(
            request,
            config,
            store,
            users_obj,
            mode="new",
            post=post,
            error=error,
        )
        return templates.TemplateResponse(request, "form.html.jinja", context, status_code=422)
    await run_in_threadpool(store.save, post)
    return RedirectResponse(url="/admin/", status_code=303)
@router.get("/posts/{slug}/edit")
 async def admin_post_edit(
    slug: str,
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Show the edit-post form for the given slug."""
    post = await run_in_threadpool(store.find, slug)
    if post is None:
        raise HTTPException(status_code=404, detail="Not found")
    title = str(post.title or slug)
    context = admin_context(
        request,
        config,
        store,
        users_obj,
        mode="edit",
        post=post,
        crumbs=[("Posts", "/admin/"), (title, None)],
    )
    return templates.TemplateResponse(request, "form.html.jinja", context)
@router.post("/posts/{slug}")
 async def admin_update_post(
    slug: str,
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Update an existing post."""
    await validate_csrf_form(request)
    existing = await run_in_threadpool(store.find, slug)
    if existing is None:
        raise HTTPException(status_code=404, detail="Not found")
    form = await request.form()
    form_dict: dict[str, str] = {
        key: value for key, value in form.items() if isinstance(value, str)
    }
    post = post_from_params(form_dict, existing=existing)
    error = creation_error(post, store, existing=existing)
    if error:
        context = admin_context(
            request,
            config,
            store,
            users_obj,
            mode="edit",
            post=post,
            error=error,
        )
        return templates.TemplateResponse(request, "form.html.jinja", context, status_code=422)
    await run_in_threadpool(store.save, post)
    return RedirectResponse(url="/admin/", status_code=303)
@router.post("/posts/{slug}/delete")
 async def admin_delete_post(
    slug: str,
    request: Request,
    store: StoreDep,
    _username: LoginDep,
 ) -> RedirectResponse:
    """Delete a post by slug."""
    await validate_csrf_form(request)
    await run_in_threadpool(store.delete, slug)
    return RedirectResponse(url="/admin/", status_code=303)
@router.post("/preview")
 async def admin_preview(
    request: Request,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Render Markdown body to HTML and return it."""
    await validate_csrf_form(request)
    from .markdown import render
    form = await request.form()
    body = str(form.get("body", ""))
    html = await run_in_threadpool(render, body)
    return HTMLResponse(content=html)
@router.post("/uploads")
 async def admin_uploads(
    request: Request,
    store: StoreDep,
    _username: LoginDep,
    file: UploadFile | None = None,
 ) -> JSONResponse:
    """Upload a media file and return its URL as JSON."""
    await validate_csrf_form(request)
    if file is None or file.filename is None:
        raise HTTPException(status_code=400, detail=json.dumps({"error": "no_file"}))
    bytes_data, _extension = await validate_upload(file)
    url = await run_in_threadpool(store.store_upload, file.filename, file.file, bytes_data)
    return JSONResponse(content={"url": url})
@router.get("/logo.svg", include_in_schema=False)
 async def admin_logo() -> FileResponse:
    """Serve the volumen logo SVG."""
    path = _PUBLIC_DIR / "volumen-logo.svg"
    return FileResponse(path)
@router.get("/icon.svg", include_in_schema=False)
 async def admin_icon() -> FileResponse:
    """Serve the volumen icon SVG."""
    path = _PUBLIC_DIR / "volumen-icon.svg"
    return FileResponse(path)
@@ -0,0 +1,415 @@
 """Administrative settings and user-management routes."""
 from __future__ import annotations
 import json
 from typing import Annotated
 from fastapi import APIRouter, Depends, HTTPException, Request, UploadFile
 from fastapi.responses import HTMLResponse
 from starlette.concurrency import run_in_threadpool
 from .app import templates
 from .auth import admin_context, validate_csrf_form
 from .config import Config
 from .dependencies import get_config, get_store, get_users, require_admin, require_login
 from .store import Store
 from .user_settings import (
    change_fediverse_creator,
    change_name,
    change_password,
    change_photo,
    change_role,
    change_username,
    create_user,
    remove_photo,
    remove_user,
 )
 from .users import Users
 ConfigDep = Annotated[Config, Depends(get_config)]
 StoreDep = Annotated[Store, Depends(get_store)]
 UsersDep = Annotated[Users, Depends(get_users)]
 LoginDep = Annotated[str, Depends(require_login)]
 AdminDep = Annotated[str, Depends(require_admin)]
 router = APIRouter(prefix="/admin")
 # ============================================================================
 # Auth helpers
 # ============================================================================
 def _password_policy(config: Config) -> tuple[int, int | None]:
    raw_min = config.admin.get("min_password_length", 0)
    raw_max = config.admin.get("max_password_length", 0)
    min_len = max(1, int(raw_min)) if raw_min else 8
    max_len = int(raw_max) if raw_max and int(raw_max) > 0 else None
    return min_len, max_len
 # ============================================================================
 # Settings page
 # ============================================================================
@router.get("/settings")
 async def admin_settings(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _username: LoginDep,
 ) -> HTMLResponse:
    """Show the admin settings page."""
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — password
 # ============================================================================
@router.post("/settings/password")
 async def admin_settings_password(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
 ) -> HTMLResponse:
    """Handle password change."""
    await validate_csrf_form(request)
    min_len, max_len = _password_policy(config)
    form = await request.form()
    error, notice = await run_in_threadpool(
        change_password,
        users_obj,
        current_user,
        str(form.get("current_password", "")),
        str(form.get("new_password", "")),
        min_length=min_len,
        max_length=max_len,
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — username
 # ============================================================================
@router.post("/settings/username")
 async def admin_settings_username(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
 ) -> HTMLResponse:
    """Handle username change."""
    await validate_csrf_form(request)
    form = await request.form()
    error, notice = await run_in_threadpool(
        change_username,
        users_obj,
        current_user,
        str(form.get("username", "")),
        request.session,
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — display name
 # ============================================================================
@router.post("/settings/name")
 async def admin_settings_name(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
 ) -> HTMLResponse:
    """Handle display name change."""
    await validate_csrf_form(request)
    form = await request.form()
    error, notice = await run_in_threadpool(
        change_name, users_obj, current_user, str(form.get("name", ""))
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — fediverse handle
 # ============================================================================
@router.post("/settings/fediverse")
 async def admin_settings_fediverse(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
 ) -> HTMLResponse:
    """Handle fediverse creator handle change."""
    await validate_csrf_form(request)
    form = await request.form()
    error, notice = await run_in_threadpool(
        change_fediverse_creator,
        users_obj,
        current_user,
        str(form.get("fediverse_creator", "")),
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — profile photo
 # ============================================================================
@router.post("/settings/photo")
 async def admin_settings_photo(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
    photo: UploadFile | None = None,
 ) -> HTMLResponse:
    """Upload a profile photo."""
    await validate_csrf_form(request)
    error: str | None = None
    notice: str | None = None
    if photo is None or photo.filename is None:
        error = "No file selected."
    else:
        try:
            error, notice = await change_photo(users_obj, store, current_user, photo)
        except HTTPException as exc:
            # Surface upload validation failures to the settings page.
            try:
                detail = json.loads(exc.detail) if isinstance(exc.detail, str) else {}
            except json.JSONDecodeError, TypeError:
                detail = {}
            error = detail.get("message", "Upload failed.")
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — remove photo
 # ============================================================================
@router.post("/settings/photo/remove")
 async def admin_settings_photo_remove(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: LoginDep,
 ) -> HTMLResponse:
    """Remove the current user's profile photo."""
    await validate_csrf_form(request)
    error, notice = await remove_photo(users_obj, current_user, store=store)
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — create user (admin only)
 # ============================================================================
@router.post("/settings/users")
 async def admin_settings_users_create(
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    _admin: AdminDep,
 ) -> HTMLResponse:
    """Create a new user (admin only)."""
    await validate_csrf_form(request)
    min_len, max_len = _password_policy(config)
    form = await request.form()
    error, notice = await run_in_threadpool(
        create_user,
        users_obj,
        str(form.get("username", "")),
        str(form.get("password", "")),
        str(form.get("role", "author")),
        min_length=min_len,
        max_length=max_len,
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — change role (admin only)
 # ============================================================================
@router.post("/settings/users/{username}/role")
 async def admin_settings_users_role(
    username: str,
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: AdminDep,
 ) -> HTMLResponse:
    """Change a user's role (admin only)."""
    await validate_csrf_form(request)
    form = await request.form()
    error, notice = await run_in_threadpool(
        change_role,
        users_obj,
        current_user,
        username,
        str(form.get("role", "author")),
    )
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
 # ============================================================================
 # Settings — delete user (admin only)
 # ============================================================================
@router.post("/settings/users/{username}/delete")
 async def admin_settings_users_delete(
    username: str,
    request: Request,
    config: ConfigDep,
    store: StoreDep,
    users_obj: UsersDep,
    current_user: AdminDep,
 ) -> HTMLResponse:
    """Delete a user (admin only)."""
    await validate_csrf_form(request)
    error, notice = await remove_user(users_obj, current_user, username, store=store)
    users_list = await run_in_threadpool(lambda: users_obj.all)
    ctx = admin_context(
        request,
        config,
        store,
        users_obj,
        users_list=users_list,
        error=error,
        notice=notice,
        crumbs=[("Settings", None)],
    )
    return templates.TemplateResponse(request, "settings.html.jinja", ctx)
@@ -0,0 +1,174 @@
 """Public JSON API endpoints and feed endpoints."""
 from __future__ import annotations
 from typing import Any
 from fastapi import APIRouter, Depends, HTTPException, Query
 from fastapi.responses import JSONResponse, PlainTextResponse, Response
 from starlette.concurrency import run_in_threadpool
 from .config import Config
 from .dependencies import get_config, get_store
 from .feed_helpers import render_json_feed, render_rss_feed, render_sitemap
 from .payloads import posts_payload, published_posts, site_payload, tag_counts
 from .store import Store
 router = APIRouter(prefix="/api/volumen")
 CORS_HEADERS: dict[str, str] = {
    "Access-Control-Allow-Origin": "*",
    "Access-Control-Allow-Methods": "GET, OPTIONS",
    "Access-Control-Allow-Headers": "Content-Type",
 }
 CACHE_HEADER: dict[str, str] = {"Cache-Control": "public, max-age=60"}
 def _cors_response(content: Any, status_code: int = 200) -> JSONResponse:
    """Return a JSON response with CORS and Cache-Control headers."""
    return JSONResponse(
        content=content,
        status_code=status_code,
        headers={**CORS_HEADERS, **CACHE_HEADER},
    )
 def _add_cors_headers(response: Response) -> Response:
    """Attach CORS and Cache-Control headers to an existing response."""
    for key, value in {**CORS_HEADERS, **CACHE_HEADER}.items():
        response.headers.setdefault(key, value)
    return response
 # ---------------------------------------------------------------------------
 # OPTIONS preflight
 # ---------------------------------------------------------------------------
@router.options("/{rest:path}")
 async def options_preflight() -> Response:
    """Handle CORS preflight requests for all API endpoints."""
    return _add_cors_headers(PlainTextResponse(""))
 # ---------------------------------------------------------------------------
 # Site metadata
 # ---------------------------------------------------------------------------
@router.get("/site")
 async def api_site(config: Config = Depends(get_config)) -> JSONResponse:
    """Return site metadata (title, description, base_url, etc.)."""
    payload = await run_in_threadpool(site_payload, config)
    return _cors_response(payload)
 # ---------------------------------------------------------------------------
 # Posts list (paginated, filtered)
 # ---------------------------------------------------------------------------
@router.get("/posts")
 async def api_posts(
    store: Store = Depends(get_store),
    lang: str = Query(default=""),
    tag: str = Query(default=""),
    q: str = Query(default=""),
    page: int = Query(default=1, ge=1),
    limit: int = Query(default=20, ge=1, le=100),
 ) -> JSONResponse:
    """Return a paginated, filtered list of published posts."""
    params: dict[str, str] = {}
    if lang:
        params["lang"] = lang
    if tag:
        params["tag"] = tag
    if q:
        params["q"] = q
    payload = await run_in_threadpool(posts_payload, store, params, page, limit)
    return _cors_response(payload)
 # ---------------------------------------------------------------------------
 # Single post
 # ---------------------------------------------------------------------------
@router.get("/posts/{slug}")
 async def api_post(
    slug: str,
    store: Store = Depends(get_store),
    lang: str = Query(default=""),
 ) -> JSONResponse:
    """Return a single published post by slug, optionally filtered by language."""
    post = await run_in_threadpool(store.find, slug, lang if lang else None)
    if post is None:
        raise HTTPException(status_code=404, detail={"error": "not_found"})
    if post.draft:
        raise HTTPException(status_code=404, detail={"error": "draft"})
    payload = await run_in_threadpool(post.detail)
    return _cors_response(payload)
 # ---------------------------------------------------------------------------
 # Tag cloud
 # ---------------------------------------------------------------------------
@router.get("/tags")
 async def api_tags(store: Store = Depends(get_store)) -> JSONResponse:
    """Return a tag cloud with post counts."""
    payload = await run_in_threadpool(tag_counts, store)
    return _cors_response({"tags": payload})
 # ---------------------------------------------------------------------------
 # RSS feed
 # ---------------------------------------------------------------------------
@router.get("/feed.xml")
 async def api_rss_feed(
    config: Config = Depends(get_config),
    store: Store = Depends(get_store),
 ) -> Response:
    """Return an RSS 2.0 XML feed of the 20 most recent posts."""
    posts = await run_in_threadpool(published_posts, store)
    base = config.site.get("base_url", "").rstrip("/")
    xml = await run_in_threadpool(render_rss_feed, posts, config.site, base)
    return _add_cors_headers(Response(content=xml, media_type="application/rss+xml"))
 # ---------------------------------------------------------------------------
 # JSON Feed
 # ---------------------------------------------------------------------------
@router.get("/feed.json")
 async def api_json_feed(
    config: Config = Depends(get_config),
    store: Store = Depends(get_store),
 ) -> JSONResponse:
    """Return a JSON Feed 1.1 document for the 20 most recent posts."""
    posts = await run_in_threadpool(published_posts, store)
    base = config.site.get("base_url", "").rstrip("/")
    data = await run_in_threadpool(render_json_feed, posts, config.site, base)
    return _cors_response(data)
 # ---------------------------------------------------------------------------
 # Sitemap
 # ---------------------------------------------------------------------------
@router.get("/sitemap.xml")
 async def api_sitemap(
    config: Config = Depends(get_config),
    store: Store = Depends(get_store),
 ) -> Response:
    """Return an XML sitemap for all published posts."""
    posts = await run_in_threadpool(published_posts, store)
    base = config.site.get("base_url", "").rstrip("/")
    xml = await run_in_threadpool(render_sitemap, posts, base)
    return _add_cors_headers(Response(content=xml, media_type="application/xml"))
@@ -0,0 +1,182 @@
 """FastAPI application factory and middleware registration."""
 from __future__ import annotations
 import logging
 import secrets
 from pathlib import Path
 from typing import TYPE_CHECKING, Any
 from fastapi import FastAPI, Request
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
 from starlette.middleware.base import BaseHTTPMiddleware
 from starlette.middleware.sessions import SessionMiddleware
 if TYPE_CHECKING:
    from .config import Config
    from .store import Store
 logger = logging.getLogger(__name__)
 _BASE_CSP_DIRECTIVES: tuple[str, ...] = (
    "default-src 'self'",
    "script-src 'self'",
    "style-src 'self'",
    "img-src 'self' data:",
    "font-src 'self'",
    "connect-src 'self'",
    "form-action 'self'",
    "frame-ancestors 'none'",
    "base-uri 'self'",
    "object-src 'none'",
 )
 PERMISSIONS_POLICY: str = (
    "accelerometer=(), camera=(), geolocation=(), gyroscope=(), microphone=(), payment=(), usb=()"
 )
 _PKG_DIR: Path = Path(__file__).resolve().parent
 _TEMPLATE_DIR: Path = _PKG_DIR / "web" / "templates"
 _STATIC_DIR: Path = _PKG_DIR / "web" / "static"
 templates: Jinja2Templates = Jinja2Templates(directory=str(_TEMPLATE_DIR))
 def create_app(config: Config, store: Store) -> FastAPI:
    """Build a fully-configured FastAPI app bound to *config* and *store*."""
    config.validate()
    app = FastAPI(title="volumen")
    ttl = int(config.admin.get("session_ttl", 0))
    if ttl <= 0:
        raise RuntimeError("session_ttl must be a positive integer")
    session_cookie_secure = bool(config.cookie_secure) or config.trust_proxy
    app.add_middleware(
        SessionMiddleware,
        secret_key=session_secret(config),
        https_only=session_cookie_secure,
        same_site="strict",
        session_cookie="volumen_session",
        max_age=ttl,
    )
    app.add_middleware(
        SecureCookieMiddleware,
        trust_proxy=config.trust_proxy,
        cookie_secure=session_cookie_secure,
    )
    app.add_middleware(
        GlobalSecurityHeadersMiddleware,
        trust_proxy=config.trust_proxy,
        cookie_secure=session_cookie_secure,
    )
    app.state.config = config
    app.state.store = store
    from .users import Users
    app.state.users = Users(
        path=config.users_file,
        bootstrap_hash=config.admin.get("password_hash", ""),
    )
    if _STATIC_DIR.is_dir():
        app.mount("/admin/static", StaticFiles(directory=str(_STATIC_DIR)), name="admin_static")
    from .admin_auth_routes import router as admin_auth_router
    from .admin_media_routes import router as admin_media_router
    from .admin_post_routes import router as admin_post_router
    from .admin_settings_routes import router as admin_settings_router
    from .api_routes import router as api_router
    app.include_router(api_router)
    app.include_router(admin_auth_router)
    app.include_router(admin_post_router)
    app.include_router(admin_settings_router)
    app.include_router(admin_media_router)
    return app
 def session_secret(config: Config) -> str:
    """Derive the session-signing secret from configuration."""
    key = str(config.admin.get("session_key", ""))
    if key:
        if len(key.encode()) < 64:
            if config.is_production:
                raise RuntimeError(
                    "[admin].session_key must be at least 64 bytes in production. "
                    "Generate one with: python -c 'import secrets; print(secrets.token_hex(32))'"
                )
            logger.warning(
                "volumen: session_key is shorter than 64 bytes, falling back to random secret"
            )
            return secrets.token_hex(64)
        return key
    if config.is_production:
        raise RuntimeError(
            "[admin].session_key must be set in production. "
            "Generate one with: python -c 'import secrets; print(secrets.token_hex(32))'"
        )
    logger.warning(
        "volumen: session_key is empty; using an ephemeral random secret "
        "(sessions will not survive restarts)"
    )
    return secrets.token_hex(64)
 class SecureCookieMiddleware(BaseHTTPMiddleware):
    """Record whether the current request should mark cookies ``Secure``."""
    def __init__(self, app: Any, trust_proxy: bool = False, cookie_secure: bool = False) -> None:
        super().__init__(app)
        self._trust_proxy = trust_proxy
        self._cookie_secure = cookie_secure
    async def dispatch(self, request: Request, call_next):  # type: ignore[override]
        if self._trust_proxy:
            proto = (request.headers.get("X-Forwarded-Proto", "")).lower()
            request.state.session_secure = proto == "https"
        else:
            request.state.session_secure = self._cookie_secure
        return await call_next(request)
 class GlobalSecurityHeadersMiddleware(BaseHTTPMiddleware):
    """Set baseline security headers on every response."""
    def __init__(self, app: Any, trust_proxy: bool = False, cookie_secure: bool = False) -> None:
        super().__init__(app)
        self._trust_proxy = trust_proxy
        self._cookie_secure = cookie_secure
    async def dispatch(self, request: Request, call_next):  # type: ignore[override]
        response = await call_next(request)
        response.headers.setdefault("X-Content-Type-Options", "nosniff")
        response.headers.setdefault("Referrer-Policy", "strict-origin-when-cross-origin")
        response.headers.setdefault("X-Frame-Options", "DENY")
        response.headers.setdefault("Permissions-Policy", PERMISSIONS_POLICY)
        # Always set base CSP
        response.headers["Content-Security-Policy"] = "; ".join(_BASE_CSP_DIRECTIVES)
        # For admin routes, augment with nonce-based script-src
        if request.url.path.startswith("/admin"):
            nonce = secrets.token_urlsafe(18)
            request.state.csp_nonce = nonce
            csp = "; ".join(
                _BASE_CSP_DIRECTIVES
                + (
                    f"script-src 'self' 'nonce-{nonce}'",
                    f"style-src 'self' 'nonce-{nonce}'",
                )
            )
            response.headers["Content-Security-Policy"] = csp
        if self._cookie_secure:
            response.headers.setdefault(
                "Strict-Transport-Security",
                "max-age=31536000; includeSubDomains",
            )
        return response
@@ -0,0 +1,159 @@
 """Authentication, CSRF, rate-limiting, and password-policy helpers."""
 from __future__ import annotations
 import secrets
 import unicodedata
 from typing import TYPE_CHECKING, Any
 from fastapi import HTTPException, Request
 from . import LOGIN_WINDOW, MAX_LOGIN_ATTEMPTS, record_login_attempt
 if TYPE_CHECKING:
    from .config import Config
    from .store import Store
    from .users import Users
 COMMON_PASSWORDS: frozenset[str] = frozenset(
    {
        "password",
        "password1",
        "password123",
        "123456",
        "12345678",
        "123456789",
        "qwerty",
        "qwerty123",
        "letmein",
        "iloveyou",
        "admin",
        "admin123",
        "welcome",
        "welcome1",
        "monkey",
        "dragon",
        "football",
        "baseball",
        "sunshine",
        "princess",
        "abc123",
        "111111",
        "123123",
        "1q2w3e4r",
        "passw0rd",
        "trustno1",
        "changeme",
        "secret",
        "secret123",
        "test",
        "test123",
        "guest",
        "master",
        "000000",
        "696969",
        "qwertyuiop",
        "superman",
        "batman",
        "jordan",
        "harley",
        "hunter",
        "hunter2",
        "shadow",
        "michael",
        "jennifer",
        "abcdef",
        "abcdefg",
    }
 )
 def csrf_token(request: Request) -> str:
    """Return (and lazily create) the CSRF token stored in the session."""
    token = request.session.get("csrf", "")
    if not token:
        token = secrets.token_hex(32)
        request.session["csrf"] = token
    return token
 async def validate_csrf_form(request: Request) -> None:
    """Perform a constant-time CSRF check against POST form data."""
    form = await request.form()
    token = form.get("_csrf", "")
    session_token = request.session.get("csrf", "")
    if not token or not session_token:
        raise HTTPException(status_code=403, detail="Invalid CSRF token")
    if not secrets.compare_digest(str(session_token), str(token)):
        raise HTTPException(status_code=403, detail="Invalid CSRF token")
 def check_login_rate_limit(request: Request) -> None:
    """Rate-limit login attempts per IP — raises 429 on excess."""
    # Extract real client IP, accounting for reverse proxy.
    config = request.app.state.config
    ip: str = ""
    if config.trust_proxy:
        forwarded = request.headers.get("X-Forwarded-For", "")
        ip = forwarded.split(",")[0].strip() if forwarded else ""
    if not ip and request.client:
        ip = request.client.host
    if not ip:
        ip = "unknown"
    count = record_login_attempt(ip)
    if count > MAX_LOGIN_ATTEMPTS:
        raise HTTPException(
            status_code=429,
            detail="Too many login attempts. Please wait and try again.",
        )
    _ = LOGIN_WINDOW
 def admin_context(
    request: Request,
    config: Config,
    store: Store,
    users_obj: Users,
    **extra: Any,
 ) -> dict[str, Any]:
    """Build the standard Jinja2 template context for admin routes."""
    username: str = request.session.get("user", "")
    record = users_obj.find(username) if username else None
    csrf_val = csrf_token(request)
    nonce = getattr(request.state, "csp_nonce", "")
    ctx: dict[str, Any] = {
        "request": request,
        "config": config,
        "store": store,
        "users": users_obj,
        "csrf_token": csrf_val,
        "current_user": username or None,
        "current_role": record.role if record else None,
        "current_user_record": record,
        "csp_nonce": nonce,
    }
    ctx.update(extra)
    return ctx
 def password_error(
    password: str,
    *,
    min_length: int | None = None,
    max_length: int | None = None,
 ) -> str | None:
    """Validate a newly chosen password; return an error message or ``None``."""
    from .config import DEFAULT_MAX_PASSWORD_LENGTH, DEFAULT_MIN_PASSWORD_LENGTH
    min_len = min_length if min_length is not None else DEFAULT_MIN_PASSWORD_LENGTH
    max_len = max_length if max_length is not None else DEFAULT_MAX_PASSWORD_LENGTH
    if not password or not password.strip():
        return "New password cannot be empty."
    if len(password) < min_len:
        return f"Password must be at least {min_len} characters long."
    if len(password) > max_len:
        return f"Password must be at most {max_len} characters long."
    normalized = unicodedata.normalize("NFKC", password)
    if normalized.lower() in COMMON_PASSWORDS:
        return "This password is too common."
    return None
@@ -0,0 +1,451 @@
 """CLI entry point for volumen."""
 from __future__ import annotations
 import argparse
 import getpass
 import json
 import os
 import sys
 import urllib.error
 import urllib.request
 import warnings
 from datetime import UTC, datetime
 from pathlib import Path
 from . import VERSION
 PYPI_URL = "https://pypi.org/pypi/volumen/json"
 PYPI_TIMEOUT = 5.0
 def main() -> None:
    parser = argparse.ArgumentParser(
        prog="volumen", description="A small, file-based Markdown blog engine."
    )
    parser.add_argument("--version", action="version", version=f"volumen {VERSION}")
    sub = parser.add_subparsers(dest="command")
    serve_parser = sub.add_parser("serve", help="Start the blog server")
    serve_parser.add_argument("--config", default="/etc/volumen/config.toml")
    serve_parser.add_argument("--host", default=None)
    serve_parser.add_argument("--port", type=int, default=None)
    serve_parser.add_argument("--content", default=None)
    hash_parser = sub.add_parser("hash-password", help="Hash a password")
    hash_parser.add_argument(
        "password",
        nargs="?",
        default=None,
        help=(
            "Optional plaintext password (discouraged — visible in shell "
            "history). If omitted you will be prompted."
        ),
    )
    init_parser = sub.add_parser(
        "init",
        help=(
            "Bootstrap config, data directories, admin password (and optionally a systemd service)"
        ),
    )
    init_parser.add_argument(
        "--systemd",
        action="store_true",
        help="Install / enable a systemd unit (root only)",
    )
    init_parser.add_argument(
        "--local",
        action="store_true",
        help="Use per-user paths (~/.config/volumen/, ~/.local/share/volumen/)",
    )
    init_parser.add_argument(
        "--config",
        type=Path,
        default=None,
        help=(
            "Override config path (default: /etc/volumen/config.toml when "
            "system, ~/.config/volumen/config.toml when user)"
        ),
    )
    init_parser.add_argument("--data", type=Path, default=None, help="Override data directory")
    init_parser.add_argument(
        "--users-file", type=Path, default=None, help="Override users.toml path"
    )
    init_parser.add_argument(
        "--service-user", default="volumen", help="System user for systemd unit (default: volumen)"
    )
    enable_group = init_parser.add_mutually_exclusive_group()
    enable_group.add_argument(
        "--enable",
        action="store_true",
        dest="enable",
        help="With --systemd, also systemctl enable --now (default when root)",
    )
    enable_group.add_argument(
        "--no-enable",
        action="store_false",
        dest="enable",
        help="With --systemd, install but do not enable",
    )
    init_parser.set_defaults(enable=True)
    init_parser.add_argument(
        "--admin-password",
        default=None,
        help="Set admin password non-interactively (discouraged)",
    )
    init_parser.add_argument(
        "--force",
        action="store_true",
        help="Overwrite existing config (with .bak.<ts> backup)",
    )
    status_parser = sub.add_parser("status", help="Show installation status")
    status_parser.add_argument("--config", type=Path, default=None, help="Config path to inspect")
    status_parser.add_argument(
        "--data", type=Path, default=None, help="Data dir (posts) to inspect"
    )
    status_parser.add_argument(
        "--users-file", type=Path, default=None, help="users.toml path to inspect"
    )
    status_parser.add_argument("--json", action="store_true", help="Machine-readable output")
    check_update_parser = sub.add_parser(
        "check-update",
        help="Compare the installed version with the latest release on PyPI",
    )
    check_update_parser.add_argument(
        "--json", action="store_true", help="Machine-readable output (sets exit code only)"
    )
    sub.add_parser("version", help="Show version")
    args = parser.parse_args()
    if args.command == "version":
        print(VERSION)
    elif args.command == "hash-password":
        _hash_password(args)
    elif args.command == "init":
        _init(args)
    elif args.command == "status":
        sys.exit(_status(args))
    elif args.command == "check-update":
        sys.exit(_check_update(args))
    elif args.command == "serve":
        _serve(args)
    else:
        parser.print_help()
        sys.exit(1)
 def _hash_password(args: argparse.Namespace) -> None:
    from .password import hash_password
    if args.password is not None:
        warnings.warn(
            "passing the password as a positional argument is insecure "
            "(it ends up in shell history). Prefer interactive input.",
            stacklevel=2,
        )
        pw = args.password
    else:
        pw = getpass.getpass("Password: ")
    print(hash_password(pw))
 def _init(args: argparse.Namespace) -> None:
    from .installer import (
        SYSTEM_CONFIG_PATH,
        SYSTEM_CONTENT_DIR,
        SYSTEM_USERS_FILE,
        USER_CONFIG_PATH,
        USER_CONTENT_DIR,
        USER_USERS_FILE,
        InstallerError,
        system_install,
        user_install,
    )
    is_root = _is_root()
    use_user = bool(args.local) or not is_root
    install_service = bool(args.systemd) and not use_user
    if use_user and args.systemd:
        print(
            "error: --systemd is not available for per-user installs; "
            "drop --local and run as root.",
            file=sys.stderr,
        )
        sys.exit(2)
    if use_user:
        config_path = args.config if args.config is not None else USER_CONFIG_PATH
        content_dir = args.data if args.data is not None else USER_CONTENT_DIR
        users_file = args.users_file if args.users_file is not None else USER_USERS_FILE
        if args.data is None:
            # Per-user defaults: ~/.local/share/volumen/{posts,users.toml}.
            content_dir = USER_CONTENT_DIR
            users_file = USER_USERS_FILE
    else:
        config_path = args.config if args.config is not None else SYSTEM_CONFIG_PATH
        content_dir = args.data if args.data is not None else SYSTEM_CONTENT_DIR
        users_file = args.users_file if args.users_file is not None else SYSTEM_USERS_FILE
    password = args.admin_password
    if password is None:
        while True:
            first = getpass.getpass("Admin password (user 'admin'): ")
            second = getpass.getpass("Confirm: ")
            if first != second:
                print("Passwords do not match; try again.", file=sys.stderr)
                continue
            if not first:
                print("Password cannot be empty.", file=sys.stderr)
                continue
            password = first
            break
    common: dict[str, object] = {
        "config_path": Path(config_path),
        "content_dir": Path(content_dir),
        "users_file": Path(users_file),
        "admin_password": password,
        "force": bool(args.force),
    }
    try:
        if use_user:
            result = user_install(**common)
        else:
            result = system_install(
                **common,
                service_user=args.service_user,
                install_service=install_service,
                enable_service=bool(args.enable),
            )
    except InstallerError as exc:
        print(f"error: {exc}", file=sys.stderr)
        sys.exit(1)
    _print_init_summary(result, install_service=install_service, use_user=use_user)
 def _print_init_summary(result: object, *, install_service: bool, use_user: bool) -> None:
    from .installer import InstallResult
    assert isinstance(result, InstallResult)
    skipped = any("leaving untouched" in m for m in result.messages)
    if skipped:
        print("==> volumen: existing config left untouched (use --force to overwrite).")
        print()
        print(f"  Config:        {result.config_path}")
        print()
        print("Nothing to do. Re-run with --force if you want to re-bootstrap.")
        return
    print("==> volumen installed.")
    print()
    print(f"  Config:        {result.config_path}")
    if result.service_user is not None:
        print(f"                (chmod 600, owned by {result.service_user})")
    print(f"  Data dir:      {result.content_dir}")
    if result.service_user is not None:
        print(f"                (owned by {result.service_user})")
    print(f"  Users file:    {result.users_file}")
    if result.service_user is not None:
        print(f"                (owned by {result.service_user})")
    if install_service and result.systemd_unit_path is not None:
        print(f"  Service:       systemd unit installed at {result.systemd_unit_path}")
        print("                (enabled, running)")
    else:
        print("  Service:       not installed")
    print("  Admin user:    admin (password you just typed)")
    print()
    print("Next steps:")
    print(f"  1. Edit {result.config_path} — set site.base_url, site.title, etc.")
    print("  2. Set up nginx as reverse proxy with TLS (see docs/deployment.md).")
    if install_service and result.systemd_unit_path is not None:
        print("  3. systemctl status volumen")
 def _status(args: argparse.Namespace) -> int:
    from .installer import (
        SYSTEM_CONFIG_PATH,
        SYSTEMD_UNIT_PATH,
        inspect,
    )
    config_path = Path(args.config) if args.config is not None else SYSTEM_CONFIG_PATH
    content_dir = Path(args.data) if args.data is not None else _content_dir_from(config_path)
    users_file = (
        Path(args.users_file) if args.users_file is not None else _users_file_from(config_path)
    )
    info = inspect(
        config_path=config_path,
        content_dir=content_dir,
        users_file=users_file,
        systemd_unit_path=SYSTEMD_UNIT_PATH,
    )
    if args.json:
        print(json.dumps(info, indent=2, sort_keys=True))
        return 0 if not info["issues"] else 1
    print("==> volumen status")
    print()
    print(f"  Config:           {info['config_path']}")
    print(f"  Data dir:         {info['data_dir']}")
    print(f"  Users file:       {info['users_file']}")
    print(
        f"  Systemd unit:     {'installed' if info['systemd_unit_installed'] else 'not installed'}"
    )
    print(f"  Service:          {info['service_active']}")
    print(f"  Admin user:       {'present' if info['admin_user_present'] else 'missing'}")
    print()
    issues = list(info["issues"])
    if not issues:
        print("All checks passed.")
    else:
        print("Issues:")
        for issue in issues:
            print(f"  - {issue}")
    return 0 if not issues else 1
 def _serve(args: argparse.Namespace) -> None:
    from .app import create_app
    from .config import Config
    from .store import Store
    overrides: dict[str, object] = {}
    if args.host:
        overrides["host"] = args.host
    if args.port:
        overrides["port"] = args.port
    if args.content:
        overrides["content"] = args.content
    config = Config.load(path=args.config, overrides=overrides)
    store = Store(config.content_dir, default_lang=config.language)
    app = create_app(config, store)
    import uvicorn
    uvicorn.run(app, host=config.host, port=config.port, log_level="info")
 def _content_dir_from(config_path: Path) -> Path:
    """Best-effort resolution of the ``content_dir`` for a given config file.
    Reads the value from the loaded config if the file is present and
    parseable; otherwise returns the conventional system default. Used by
    ``volumen status`` so the operator doesn't have to pass ``--data``
    separately.
    """
    from .config import Config
    from .installer import SYSTEM_CONTENT_DIR
    try:
        return Path(Config.load(path=str(config_path)).content_dir)
    except OSError, ValueError:
        return SYSTEM_CONTENT_DIR
 def _users_file_from(config_path: Path) -> Path:
    from .config import Config
    from .installer import SYSTEM_USERS_FILE
    try:
        return Path(Config.load(path=str(config_path)).users_file)
    except OSError, ValueError:
        return SYSTEM_USERS_FILE
 def _is_root() -> bool:
    try:
        return os.geteuid() == 0
    except AttributeError:
        return False
 def _get_installed_version() -> str:
    """Return the installed `volumen` distribution version, or a sentinel."""
    from importlib.metadata import PackageNotFoundError
    from importlib.metadata import version as _pkg_version
    try:
        return _pkg_version("volumen")
    except PackageNotFoundError:  # pragma: no cover — only reached when not installed as a wheel.
        return "0.0.0+unknown"
 def _compare_versions(installed: str, latest: str) -> bool:
    """Return True if `latest` is strictly newer than `installed`.
    Pre-release / local segments (``0.5.0a1``, ``0.5.0.dev1``, ``1.0.0+abc``) are
    stripped before comparison so a published ``1.0.0a1`` is correctly reported
    as an update against an installed ``0.9.0``.
    """
    def _core(v: str) -> tuple[int, ...]:
        for sep in ("a", "b", "rc", ".dev", "+"):
            v = v.split(sep, 1)[0]
        try:
            return tuple(int(p) for p in v.split("."))
        except ValueError:
            return (0,)
    return _core(latest) > _core(installed)
 def _check_update(args: argparse.Namespace) -> int:
    """Check if a newer `volumen` is available on PyPI.
    Exit codes: ``0`` up to date; ``1`` update available; ``2`` PyPI unreachable
    (offline, timeout, malformed response, or local-only install).
    """
    current = _get_installed_version()
    checked_at = datetime.now(UTC).isoformat()
    latest: str | None = None
    error: str | None = None
    try:
        with urllib.request.urlopen(PYPI_URL, timeout=PYPI_TIMEOUT) as resp:
            payload = json.loads(resp.read())
        latest = payload["info"]["version"]
    except (
        urllib.error.URLError,
        urllib.error.HTTPError,
        OSError,
        json.JSONDecodeError,
        KeyError,
    ) as exc:
        error = str(exc) or exc.__class__.__name__
    update_available = latest is not None and _compare_versions(current, latest)
    if args.json:
        out: dict[str, object] = {
            "current_version": current,
            "latest_version": latest,
            "update_available": update_available,
            "checked_at": checked_at,
        }
        if error is not None:
            out["error"] = error
        print(json.dumps(out, indent=2, sort_keys=True))
        return 1 if update_available else (2 if latest is None else 0)
    if latest is None:
        print(
            f"volumen {current} — could not reach {PYPI_URL} ({error})",
            file=sys.stderr,
        )
        return 2
    if update_available:
        print(f"volumen {current} (latest: {latest}) — update available")
        print("  Run: uv tool upgrade volumen")
        return 1
    print(f"volumen {current} (up to date)")
    return 0
@@ -0,0 +1,321 @@
 """Config layer: loads TOML config, applies overrides, deep-merges defaults."""
 from __future__ import annotations
 import copy
 import logging
 import os
 import tomllib
 from typing import Any
 from urllib.parse import urlparse
 logger = logging.getLogger(__name__)
 DEFAULT_PATH = "/etc/volumen/config.toml"
 # --- Named defaults ---------------------------------------------------------
 DEFAULT_HOST: str = "::"
 DEFAULT_PORT: int = 9090
 DEFAULT_CONTENT_DIR: str = "/var/lib/volumen/posts"
 DEFAULT_USERS_FILE: str = "/var/lib/volumen/users.toml"
 DEFAULT_SESSION_TTL: int = 86400
 DEFAULT_MIN_PASSWORD_LENGTH: int = 10
 DEFAULT_MAX_PASSWORD_LENGTH: int = 1024
 DEFAULT_MAX_UPLOAD_BYTES: int = 10 * 1024 * 1024  # 10 MB
 SERVER_ENV_PRODUCTION = "production"
 SERVER_ENV_DEVELOPMENT = "development"
 ALLOWED_SERVER_ENVS: tuple[str, ...] = (SERVER_ENV_DEVELOPMENT, SERVER_ENV_PRODUCTION)
 DEFAULTS: dict[str, Any] = {
    "server": {
        "host": DEFAULT_HOST,
        "port": DEFAULT_PORT,
        "env": SERVER_ENV_DEVELOPMENT,
        "trust_proxy": False,
        "cookie_secure": False,
    },
    "content_dir": DEFAULT_CONTENT_DIR,
    "users_file": DEFAULT_USERS_FILE,
    "site": {
        "title": "My Blog",
        "description": "A blog powered by volumen.",
        "base_url": "https://example.com",
        "language": "en",
        "author": "Anonymous",
        "fediverse_creator": None,
    },
    "admin": {
        "password_hash": "",
        "session_key": "",
        "session_ttl": DEFAULT_SESSION_TTL,
        "min_password_length": DEFAULT_MIN_PASSWORD_LENGTH,
        "max_password_length": DEFAULT_MAX_PASSWORD_LENGTH,
        "max_upload_bytes": DEFAULT_MAX_UPLOAD_BYTES,
    },
 }
 TEMPLATE = """\
 # volumen configuration.
 [server]
 host = "::"
 port = 9090
 # Environment label: "development" or "production". Affects startup
 # safety checks (session key length, secure cookies, password policy).
 env = "development"
 # Set true ONLY when running behind a trusted reverse proxy that
 # terminates TLS. The proxy must strip client-supplied
 # X-Forwarded-Proto headers.
 trust_proxy = false
 # Set true in production to force `Secure` flag on session cookies.
 cookie_secure = false
 # Directory of your Markdown posts (.md with TOML frontmatter).
 content_dir = "/var/lib/volumen/posts"
 # File storing admin users (managed from the admin Settings page).
 users_file = "/var/lib/volumen/users.toml"
 [site]
 title = "My Blog"
 description = "A blog powered by volumen."
 base_url = "https://example.com"
 language = "en"
 author = "Anonymous"
 # Default fediverse handle surfaced in <meta name="fediverse:creator">
 # by frontends consuming the API. Leave empty to disable.
 fediverse_creator = ""
 [admin]
 # Bootstrap admin login: paste a hash from `uv run volumen hash-password`
 # to sign in as user "admin". Once you manage users in Settings, users_file wins.
 password_hash = ""
 # Secret signing session cookies (>= 64 bytes). Empty = random per start.
 session_key = ""
 # Session lifetime in seconds (24h default).
 session_ttl = 86400
 # Minimum new-password length (configurable; default 10).
 min_password_length = 10
 # Maximum new-password length (cap to avoid scrypt abuse).
 max_password_length = 1024
 # Maximum upload size in bytes (default 10 MB).
 max_upload_bytes = 10485760
 """
 def _deep_merge(base: dict[str, Any], override: dict[str, Any]) -> dict[str, Any]:
    result: dict[str, Any] = {}
    for key, base_val in base.items():
        if key in override:
            result[key] = _merge_leaf(base_val, override[key])
        elif isinstance(base_val, dict):
            result[key] = dict(base_val)
        else:
            result[key] = base_val
    for key, val in override.items():
        if key not in result:
            result[key] = val
    return result
 def _merge_leaf(base_val: Any, override_val: Any) -> Any:
    if isinstance(base_val, dict) and isinstance(override_val, dict):
        return _deep_merge(base_val, override_val)
    return override_val
 def _apply_overrides(data: dict[str, Any], overrides: dict[str, Any]) -> dict[str, Any]:
    server = dict(data["server"])
    if "host" in overrides:
        val = overrides["host"]
        if isinstance(val, str) and val:
            server["host"] = val
    if "port" in overrides:
        val = overrides["port"]
        if isinstance(val, int) and 0 <= val <= 65535:
            server["port"] = val
    result = dict(data)
    result["server"] = server
    if "content" in overrides:
        val = overrides["content"]
        if isinstance(val, str) and val:
            result["content_dir"] = val
    if "users_file" in overrides:
        val = overrides["users_file"]
        if isinstance(val, str) and val:
            result["users_file"] = val
    return result
 class ConfigError(ValueError):
    """Raised when a configuration value is invalid or missing."""
 class Config:
    """Loaded and merged volumen configuration."""
    def __init__(self, data: dict[str, Any]) -> None:
        self._data = data
    @classmethod
    def load(cls, path: str = DEFAULT_PATH, overrides: dict[str, Any] | None = None) -> Config:
        overrides = overrides or {}
        if os.path.isfile(path):
            with open(path, "rb") as fh:
                file_data = tomllib.load(fh)
        else:
            logger.warning("Config file %s not found, using defaults.", path)
            file_data = {}
        merged = _deep_merge(copy.deepcopy(DEFAULTS), file_data)
        # The TEMPLATE declares ``content_dir`` / ``users_file`` immediately
        # after ``[server]``; TOML table folding puts them inside the
        # ``[server]`` table, but the canonical accessors read them from the
        # root. Hoist them so files produced by the template (and by
        # ``volumen init``) round-trip cleanly.
        server_section = merged.get("server", {})
        if isinstance(server_section, dict):
            for key in ("content_dir", "users_file"):
                if key in server_section and key not in file_data:
                    merged[key] = server_section[key]
        return cls(_apply_overrides(merged, overrides))
    @staticmethod
    def generate_default(path: str) -> str | None:
        if os.path.exists(path):
            return None
        dirname = os.path.dirname(path) or "."
        os.makedirs(dirname, exist_ok=True)
        with open(path, "w") as fh:
            fh.write(TEMPLATE)
        return path
    def validate(self) -> None:
        """Validate the loaded configuration; raise ``ConfigError`` on failure."""
        if not self.host or not isinstance(self.host, str):
            raise ConfigError("[server].host must be a non-empty string")
        if not isinstance(self.port, int) or not (1 <= self.port <= 65535):
            raise ConfigError(f"[server].port must be an integer in 1..65535 (got {self.port!r})")
        env = self.env
        if env not in ALLOWED_SERVER_ENVS:
            raise ConfigError(f"[server].env must be one of {ALLOWED_SERVER_ENVS} (got {env!r})")
        if not isinstance(self.trust_proxy, bool):
            raise ConfigError("[server].trust_proxy must be a boolean")
        if not isinstance(self.cookie_secure, bool):
            raise ConfigError("[server].cookie_secure must be a boolean")
        if self.session_ttl <= 0:
            raise ConfigError(f"[admin].session_ttl must be > 0 (got {self.session_ttl!r})")
        if not (1 <= self.min_password_length <= self.max_password_length):
            raise ConfigError("[admin].min_password_length must be >= 1 and <= max_password_length")
        if self.max_upload_bytes <= 0:
            raise ConfigError("[admin].max_upload_bytes must be > 0")
        base = self.site.get("base_url")
        if not base or not isinstance(base, str):
            raise ConfigError("[site].base_url must be a non-empty string")
        try:
            parsed = urlparse(base)
            if not parsed.scheme or not parsed.netloc:
                raise ValueError
        except ValueError as exc:
            raise ConfigError(f"[site].base_url must be an absolute URL (got {base!r})") from exc
        fediverse = self.site.get("fediverse_creator")
        if fediverse:
            from .post import FEDIVERSE_CREATOR_REGEX
            if not FEDIVERSE_CREATOR_REGEX.match(str(fediverse)):
                raise ConfigError("[site].fediverse_creator must look like @user@host when set")
        # content_dir / users_file must be writable (or creatable)
        try:
            parent = os.path.dirname(self.content_dir) or "."
            os.makedirs(parent, exist_ok=True)
            probe = os.path.join(parent, ".volumen-write-probe")
            with open(probe, "w") as fh:
                fh.write("ok")
            os.remove(probe)
        except OSError as exc:
            raise ConfigError(
                f"[content_dir] is not writable at {self.content_dir!r}: {exc}"
            ) from exc
        try:
            parent = os.path.dirname(self.users_file) or "."
            os.makedirs(parent, exist_ok=True)
            probe = os.path.join(parent, ".volumen-write-probe")
            with open(probe, "w") as fh:
                fh.write("ok")
            os.remove(probe)
        except OSError as exc:
            raise ConfigError(
                f"[users_file] is not writable at {self.users_file!r}: {exc}"
            ) from exc
    @property
    def host(self) -> str:
        return self._data["server"]["host"]
    @property
    def port(self) -> int:
        return self._data["server"]["port"]
    @property
    def env(self) -> str:
        return self._data["server"].get("env", SERVER_ENV_DEVELOPMENT)
    @property
    def trust_proxy(self) -> bool:
        return bool(self._data["server"].get("trust_proxy", False))
    @property
    def cookie_secure(self) -> bool:
        return bool(self._data["server"].get("cookie_secure", False))
    @property
    def is_production(self) -> bool:
        return self.env == SERVER_ENV_PRODUCTION
    @property
    def content_dir(self) -> str:
        return self._data["content_dir"]
    @property
    def users_file(self) -> str:
        return self._data["users_file"]
    @property
    def site(self) -> dict[str, Any]:
        return self._data["site"]
    @property
    def language(self) -> str:
        return self._data["site"]["language"]
    @property
    def admin(self) -> dict[str, Any]:
        return self._data["admin"]
    @property
    def min_password_length(self) -> int:
        return int(self._data["admin"].get("min_password_length", DEFAULT_MIN_PASSWORD_LENGTH))
    @property
    def max_password_length(self) -> int:
        return int(self._data["admin"].get("max_password_length", DEFAULT_MAX_PASSWORD_LENGTH))
    @property
    def max_upload_bytes(self) -> int:
        return int(self._data["admin"].get("max_upload_bytes", DEFAULT_MAX_UPLOAD_BYTES))
    @property
    def session_ttl(self) -> int:
        return int(self._data["admin"].get("session_ttl", DEFAULT_SESSION_TTL))
    @property
    def session_key(self) -> str:
        return str(self._data["admin"].get("session_key", ""))
@@ -0,0 +1,61 @@
 """FastAPI dependency callables shared by application routers."""
 from __future__ import annotations
 from typing import TYPE_CHECKING
 from fastapi import HTTPException, Request
 if TYPE_CHECKING:
    from .config import Config
    from .store import Store
    from .users import Users
 def get_config(request: Request) -> Config:
    """Return the :class:`Config` from app state."""
    return request.app.state.config
 def get_store(request: Request) -> Store:
    """Return the :class:`Store` from app state."""
    return request.app.state.store
 def get_users(request: Request) -> Users:
    """Return the shared :class:`Users` instance from app state."""
    return request.app.state.users
 def get_current_user(request: Request) -> str | None:
    """Return the logged-in username from the session or ``None``."""
    user = request.session.get("user", "")
    return user if user else None
 def require_login(request: Request) -> str:
    """Enforce login — redirects to ``/admin/login`` otherwise."""
    username = request.session.get("user", "")
    if not username:
        raise _login_redirect()
    users_obj: Users = request.app.state.users
    if users_obj.find(username) is None:
        request.session.clear()
        raise _login_redirect()
    return username
 def _login_redirect() -> HTTPException:
    exc = HTTPException(status_code=303)
    exc.headers = {"Location": "/admin/login"}  # type: ignore[assignment]
    return exc
 def require_admin(request: Request) -> str:
    """Enforce admin role — raises 403 otherwise."""
    username = require_login(request)
    users_obj: Users = request.app.state.users
    record = users_obj.find(username)
    if record is None or record.role != "admin":
        raise HTTPException(status_code=403, detail="Forbidden")
    return username
@@ -0,0 +1,145 @@
 """Helpers that render RSS / JSON Feed / sitemap documents."""
 from __future__ import annotations
 import html
 from datetime import UTC, date, datetime
 from email.utils import format_datetime
 from typing import TYPE_CHECKING, Any
 from .markdown import _sanitize
 if TYPE_CHECKING:
    from .post import Post
 FEED_ITEM_LIMIT = 20
 def render_rss_feed(posts: list[Post], site: dict[str, Any], base_url: str) -> str:
    """Render an RSS 2.0 XML feed for the given posts.
    The feed includes the 20 most recent published posts.
    """
    items = "\n".join(_rss_item(post, base_url) for post in posts[:FEED_ITEM_LIMIT])
    title = html.escape(site.get("title", ""))
    link = html.escape(base_url)
    description = html.escape(site.get("description", ""))
    language = html.escape(site.get("language", "en"))
    return (
        '<?xml version="1.0" encoding="UTF-8"?>\n'
        '<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">\n'
        "  <channel>\n"
        f"    <title>{title}</title>\n"
        f"    <link>{link}</link>\n"
        f"    <description>{description}</description>\n"
        f"    <language>{language}</language>\n"
        f"{items}\n"
        "  </channel>\n"
        "</rss>"
    )
 def _rss_item(post: Post, base_url: str) -> str:
    """Render a single RSS <item> element."""
    permalink = f"{base_url}/{post.slug}"
    pub_date = ""
    post_date = post.date_string
    if post_date:
        pub_date = f"\n      <pubDate>{html.escape(_rfc822_date(post_date))}</pubDate>"
    creator = post.fediverse_creator
    creator_tag = ""
    if creator:
        creator_tag = f"\n      <dc:creator>{html.escape(creator)}</dc:creator>"
    return (
        f"    <item>\n"
        f"      <title>{html.escape(post.title or '')}</title>\n"
        f"      <link>{html.escape(permalink)}</link>\n"
        f"      <guid>{html.escape(permalink)}</guid>\n"
        f"      <description>{html.escape(post.excerpt or '')}</description>"
        f"{pub_date}{creator_tag}\n"
        f"    </item>"
    )
 def _rfc822_date(value: date | str) -> str:
    """Format a date or date-string as an RFC 822 / RFC 2822 timestamp."""
    if isinstance(value, date):
        dt = datetime.combine(value, datetime.min.time(), tzinfo=UTC)
        return format_datetime(dt, usegmt=True)
    try:
        dt = datetime.strptime(str(value), "%Y-%m-%d").replace(tzinfo=UTC)
        return format_datetime(dt, usegmt=True)
    except ValueError:
        return str(value)
 def _iso_date(value: date | str | None) -> str | None:
    """Format a date or date-string as ISO 8601 (YYYY-MM-DD)."""
    if value is None:
        return None
    if isinstance(value, date):
        return value.isoformat()
    try:
        datetime.strptime(str(value), "%Y-%m-%d")
        return str(value)
    except ValueError:
        return str(value) if value else None
 def render_json_feed(posts: list[Post], site: dict[str, Any], base_url: str) -> dict[str, Any]:
    """Build a JSON Feed 1.1 document for the given posts.
    https://jsonfeed.org/version/1.1
    """
    feed_url = f"{base_url}/api/volumen/feed.json"
    result: dict[str, Any] = {
        "version": "https://jsonfeed.org/version/1.1",
        "title": site.get("title", ""),
        "home_page_url": base_url,
        "feed_url": feed_url,
        "description": site.get("description", ""),
        "language": site.get("language", "en"),
        "items": [_json_feed_item(post, base_url, site) for post in posts[:FEED_ITEM_LIMIT]],
    }
    return {k: v for k, v in result.items() if v not in (None, "", [])}
 def _json_feed_item(post: Post, base_url: str, site: dict[str, Any]) -> dict[str, Any]:
    """Build a single JSON Feed item dict.
    The ``content_html`` field is sanitized through :func:`_sanitize`
    before being embedded to prevent stored XSS in feeds.
    """
    permalink = f"{base_url}/{post.slug}"
    item: dict[str, Any] = {
        "id": permalink,
        "url": permalink,
        "title": post.title,
        "content_html": _sanitize(post.html),
        "summary": post.excerpt,
        "date_published": _iso_date(post.date_string),
        "tags": post.tags,
    }
    author = post.fediverse_creator or site.get("fediverse_creator")
    if author:
        item["authors"] = [{"name": author}]
    return {k: v for k, v in item.items() if v not in (None, "", [])}
 def render_sitemap(posts: list[Post], base_url: str) -> str:
    """Render an XML sitemap for the given posts."""
    urls: list[str] = []
    for post in posts:
        loc = html.escape(f"{base_url}/{post.slug}")
        entry = f"  <url><loc>{loc}</loc>"
        if post.date_string:
            entry += f"<lastmod>{html.escape(post.date_string)}</lastmod>"
        entry += "</url>"
        urls.append(entry)
    url_block = "\n".join(urls)
    return (
        '<?xml version="1.0" encoding="UTF-8"?>\n'
        '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n'
        f"{url_block}\n"
        "</urlset>"
    )
@@ -0,0 +1,62 @@
 """TOML frontmatter parser for Markdown post files."""
 from __future__ import annotations
 import tomllib
 import tomli_w
 DELIMITER = "+++"
 def parse(content: str) -> tuple[dict[str, object], str]:
    """Parse TOML frontmatter and body from a post string.
    Returns (metadata_dict, body_string). If there is no frontmatter,
    returns an empty dict and the full content as body.
    """
    text = content.replace("\r\n", "\n")
    lines = text.split("\n")
    if not lines or not _is_delimiter(lines[0]):
        return {}, text
    closing = _closing_index(lines)
    if closing is None:
        return {}, text
    toml_text = "\n".join(lines[1:closing])
    body = "\n".join(lines[closing + 1 :])
    metadata: dict[str, object] = {}
    if toml_text.strip():
        metadata = tomllib.loads(toml_text)
    if body.startswith("\n"):
        body = body[1:]
    return metadata, body
 def dump(metadata: dict[str, object], body: str) -> str:
    """Serialise metadata + body back into a post file string."""
    toml_text = tomli_w.dumps(metadata) if metadata else ""
    parts = [DELIMITER, "\n"]
    if toml_text:
        parts.append(toml_text)
        if not toml_text.endswith("\n"):
            parts.append("\n")
    parts.append(DELIMITER)
    parts.append("\n\n")
    parts.append(body.lstrip())
    if not parts[-1].endswith("\n"):
        parts.append("\n")
    return "".join(parts)
 def _is_delimiter(line: str) -> bool:
    return line.strip() == DELIMITER
 def _closing_index(lines: list[str]) -> int | None:
    for i in range(1, len(lines)):
        if _is_delimiter(lines[i]):
            return i
    return None
@@ -0,0 +1,594 @@
 """First-run bootstrap for volumen (system or per-user installation).
 This module replaces the legacy ``install.sh`` script. Instead of a shell
 installer, the operational bootstrap is performed by the ``volumen init``
 Python subcommand. The bootstrap can be:
 * run as root for a system-wide install (config under ``/etc/volumen/``,
  data under ``/var/lib/volumen/``, a hardened systemd unit); or
 * run as a non-root user for a per-user install (config under
  ``~/.config/volumen/``, data under ``~/.local/share/volumen/``).
 The ``volumen`` CLI binary itself is installed separately via
 ``uv tool install volumen`` or ``pipx install volumen``; this module only
 handles the *operational* bootstrap: config, data directories, admin
 password hash, session key, and (optionally) the systemd unit file.
 Every public function in this module is safe to import from tests.
 Mutating side effects (writing files, calling ``useradd`` / ``systemctl``)
 only fire from inside the high-level ``system_install`` / ``user_install``
 entry points.
 """
 from __future__ import annotations
 import logging
 import os
 try:
    import grp
    import pwd
 except ImportError:
    grp = None  # type: ignore[assignment]
    pwd = None  # type: ignore[assignment]
 import re
 import secrets
 import shutil
 import subprocess
 from dataclasses import dataclass, field
 from datetime import UTC, datetime
 from pathlib import Path
 from .config import TEMPLATE
 logger = logging.getLogger(__name__)
 # --- Paths -------------------------------------------------------------------
 SYSTEM_CONFIG_DIR = Path("/etc/volumen")
 SYSTEM_CONFIG_PATH = SYSTEM_CONFIG_DIR / "config.toml"
 SYSTEM_DATA_DIR = Path("/var/lib/volumen")
 SYSTEM_CONTENT_DIR = SYSTEM_DATA_DIR / "posts"
 SYSTEM_USERS_FILE = SYSTEM_DATA_DIR / "users.toml"
 SYSTEMD_UNIT_PATH = Path("/etc/systemd/system/volumen.service")
 USER_CONFIG_DIR = Path("~/.config/volumen")
 USER_DATA_DIR = Path("~/.local/share/volumen")
 USER_CONFIG_PATH = USER_CONFIG_DIR / "config.toml"
 USER_CONTENT_DIR = USER_DATA_DIR / "posts"
 USER_USERS_FILE = USER_DATA_DIR / "users.toml"
 DEFAULT_SERVICE_USER = "volumen"
 DEFAULT_SERVICE_HOME = Path("/var/lib/volumen")
 # --- systemd unit template ---------------------------------------------------
 SYSTEMD_UNIT_TEMPLATE = """\
 [Unit]
 Description=volumen blog engine
 After=network.target
 [Service]
 Type=simple
 User={service_user}
 Group={service_user}
 WorkingDirectory={working_dir}
 Environment=PYTHONUNBUFFERED=1
 ExecStart={volumen_bin} serve --config {config_path} --content {content_dir}
 Restart=on-failure
 RestartSec=2
 NoNewPrivileges=true
 ProtectSystem=strict
 ProtectHome=true
 ReadWritePaths={content_dir}
 PrivateTmp=true
 [Install]
 WantedBy=multi-user.target
 """
 class InstallerError(RuntimeError):
    """Raised when the bootstrap cannot complete (root required, missing binary, etc.)."""
@dataclass
 class InstallResult:
    """Structured result of an install bootstrap.
    ``messages`` carries a human-readable list of actions performed so that
    ``volumen status`` can echo them.
    """
    config_path: Path
    content_dir: Path
    users_file: Path
    service_user: str | None
    password_hash: str
    session_key: str
    systemd_unit_path: Path | None = None
    messages: list[str] = field(default_factory=list)
 # --- helpers ----------------------------------------------------------------
 def _is_root() -> bool:
    """Return True iff the current process holds uid 0 (privileged)."""
    try:
        return os.geteuid() == 0
    except AttributeError:  # pragma: no cover — non-POSIX platforms
        return False
 def _ensure_user(name: str, home: Path | None = None) -> bool:
    """Create system user ``name`` if missing.
    Returns ``True`` if the user was created, ``False`` if it already
    existed or creation was skipped (because not running as root).
    """
    if pwd is not None:
        try:
            pwd.getpwnam(name)
            logger.debug("user %s already exists", name)
            return False
        except KeyError:
            pass
    if not _is_root():
        logger.debug("not root: skipping useradd %s", name)
        return False
    if home is None:
        home = DEFAULT_SERVICE_HOME
    home = Path(home)
    home.mkdir(parents=True, exist_ok=True)
    subprocess.run(
        [
            "useradd",
            "--system",
            "--home",
            str(home),
            "--shell",
            "/usr/sbin/nologin",
            name,
        ],
        check=True,
    )
    return True
 def _chown(path: Path, user: str) -> None:
    """chown ``path`` to ``user:user``.
    Silently no-ops on non-POSIX platforms or when not running as root so
    the function is safe to call from unprivileged test runs.
    """
    if not _is_root():
        logger.debug("chown %s %s:%s skipped (not root)", path, user, user)
        return
    if grp is None or pwd is None:
        logger.debug("chown %s %s:%s skipped (no grp/pwd modules)", path, user, user)
        return
    try:
        uid = pwd.getpwnam(user).pw_uid
        gid = grp.getgrnam(user).gr_gid
    except KeyError as exc:
        logger.warning("user/group %s missing: %s", user, exc)
        return
    try:
        os.chown(path, uid, gid)
    except OSError as exc:
        logger.warning("chown %s %s:%s failed: %s", path, user, user, exc)
 def _chown_r(path: Path, user: str) -> None:
    """Recursive chown; skips off-tree entries and follows no symlinks."""
    if not _is_root():
        return
    if path.is_dir() and not path.is_symlink():
        for child in path.iterdir():
            _chown_r(child, user)
    _chown(path, user)
 def _chmod(path: Path, mode: int) -> None:
    """chmod wrapper that no-ops when not running as root."""
    if not _is_root():
        return
    try:
        os.chmod(path, mode)
    except OSError as exc:
        logger.warning("chmod %s %o failed: %s", path, mode, exc)
 def _mutate_config_text(
    text: str,
    *,
    host: str | None = None,
    env: str | None = None,
    trust_proxy: bool | None = None,
    cookie_secure: bool | None = None,
    content_dir: str | None = None,
    users_file: str | None = None,
    password_hash: str | None = None,
    session_key: str | None = None,
 ) -> str:
    """Apply targeted substitutions to a rendered TOML template.
    Each parameter, when not ``None``, rewrites the corresponding line in
    ``text``. The substitution is anchored at the start of the line, so
    comment blocks and unrelated lines are left untouched. Comment blocks
    above each key are preserved byte-for-byte.
    """
    def _sub(key: str, value: str) -> str:
        return re.sub(
            rf"^{re.escape(key)}\s*=.*$",
            f'{key} = "{value}"',
            text,
            flags=re.MULTILINE,
            count=1,
        )
    def _sub_bool(key: str, value: bool) -> str:
        return re.sub(
            rf"^{re.escape(key)}\s*=.*$",
            f"{key} = {str(value).lower()}",
            text,
            flags=re.MULTILINE,
            count=1,
        )
    if host is not None:
        text = _sub("host", host)
    if env is not None:
        text = _sub("env", env)
    if trust_proxy is not None:
        text = _sub_bool("trust_proxy", trust_proxy)
    if cookie_secure is not None:
        text = _sub_bool("cookie_secure", cookie_secure)
    if content_dir is not None:
        text = _sub("content_dir", content_dir)
    if users_file is not None:
        text = _sub("users_file", users_file)
    if password_hash is not None:
        text = text.replace('password_hash = ""', f'password_hash = "{password_hash}"', 1)
    if session_key is not None:
        text = text.replace('session_key = ""', f'session_key = "{session_key}"', 1)
    return text
 def _backup_path(target: Path) -> Path:
    ts = datetime.now(UTC).strftime("%Y%m%dT%H%M%SZ")
    return target.with_name(f"{target.name}.bak.{ts}.toml")
 def _systemctl_is_active(unit: str) -> str:
    """Best-effort ``systemctl is-active`` query; "unknown" on failure."""
    if shutil.which("systemctl") is None:
        return "unknown"
    try:
        proc = subprocess.run(
            ["systemctl", "is-active", unit],
            capture_output=True,
            text=True,
            check=False,
            timeout=2,
        )
        out = proc.stdout.strip()
        return out or "unknown"
    except (OSError, subprocess.SubprocessError) as exc:
        logger.debug("systemctl is-active failed: %s", exc)
        return "unknown"
 # --- public API -------------------------------------------------------------
 def system_install(
    *,
    config_path: Path = SYSTEM_CONFIG_PATH,
    content_dir: Path = SYSTEM_CONTENT_DIR,
    users_file: Path = SYSTEM_USERS_FILE,
    service_user: str = DEFAULT_SERVICE_USER,
    install_service: bool = False,
    enable_service: bool = True,
    admin_password: str | None = None,
    config_template: str = TEMPLATE,
    force: bool = False,
 ) -> InstallResult:
    """Bootstrap a system-wide install (typically as root).
    See the module docstring for the full behavioural contract.
    """
    if admin_password is None:
        raise InstallerError(
            "admin_password must be provided; prompt the user (CLI does this interactively)"
        )
    config_path = Path(config_path)
    content_dir = Path(content_dir)
    users_file = Path(users_file)
    messages: list[str] = []
    if config_path.exists():
        if not force:
            logger.info("config %s already exists; leaving untouched", config_path)
            messages.append("config exists, leaving untouched (use --force to overwrite)")
            return InstallResult(
                config_path=config_path,
                content_dir=content_dir,
                users_file=users_file,
                service_user=service_user,
                password_hash="",
                session_key="",
                systemd_unit_path=None,
                messages=messages,
            )
        backup = _backup_path(config_path)
        backup.write_text(config_path.read_text(encoding="utf-8"), encoding="utf-8")
        messages.append(f"backed up existing config to {backup}")
    # Directories.
    config_path.parent.mkdir(parents=True, exist_ok=True)
    users_file.parent.mkdir(parents=True, exist_ok=True)
    content_dir.mkdir(parents=True, exist_ok=True)
    (content_dir / "media").mkdir(exist_ok=True)
    # Service user.
    if _ensure_user(service_user):
        messages.append(f"created system user {service_user}")
    else:
        messages.append(f"system user {service_user} already present (or creation skipped)")
    # Hashes / secrets.
    from .password import hash_password
    password_hash = hash_password(admin_password)
    session_key = secrets.token_hex(64)
    rendered = _mutate_config_text(
        config_template,
        host="::1",
        env="production",
        trust_proxy=True,
        cookie_secure=True,
        content_dir=str(content_dir),
        users_file=str(users_file),
        password_hash=password_hash,
        session_key=session_key,
    )
    config_path.write_text(rendered, encoding="utf-8")
    messages.append(f"wrote config to {config_path}")
    # Make sure users_file exists before chown.
    users_file.touch(exist_ok=True)
    # Permissions.
    _chown_r(content_dir, service_user)
    _chown(users_file.parent, service_user)
    _chown(users_file, service_user)
    _chown(config_path, service_user)
    _chmod(config_path, 0o600)
    # Systemd unit (optional).
    systemd_unit_path: Path | None = None
    if install_service:
        if not _is_root():
            raise InstallerError("install_service=True requires running as root")
        bin_path = shutil.which("volumen")
        if bin_path is None:
            raise InstallerError(
                "volumen binary not found on PATH; install it first "
                "(`uv tool install volumen` or `pipx install volumen`)"
            )
        systemd_unit_path = SYSTEMD_UNIT_PATH
        systemd_unit_path.parent.mkdir(parents=True, exist_ok=True)
        unit = SYSTEMD_UNIT_TEMPLATE.format(
            service_user=service_user,
            working_dir=str(config_path.parent),
            volumen_bin=bin_path,
            config_path=str(config_path),
            content_dir=str(content_dir),
        )
        systemd_unit_path.write_text(unit, encoding="utf-8")
        _chmod(systemd_unit_path, 0o644)
        subprocess.run(["systemctl", "daemon-reload"], check=True)
        if enable_service:
            subprocess.run(["systemctl", "enable", "--now", "volumen"], check=True)
            messages.append("systemd unit installed, enabled, and started")
        else:
            messages.append("systemd unit installed (not enabled)")
    return InstallResult(
        config_path=config_path,
        content_dir=content_dir,
        users_file=users_file,
        service_user=service_user,
        password_hash=password_hash,
        session_key=session_key,
        systemd_unit_path=systemd_unit_path,
        messages=messages,
    )
 def user_install(
    *,
    config_path: Path = USER_CONFIG_PATH,
    content_dir: Path = USER_CONTENT_DIR,
    users_file: Path = USER_USERS_FILE,
    admin_password: str | None = None,
    config_template: str = TEMPLATE,
    force: bool = False,
    install_service: bool = False,
 ) -> InstallResult:
    """Bootstrap a per-user install (never touches system users or systemd)."""
    if install_service:
        raise InstallerError(
            "--systemd is not available for per-user installs; run as root, without --local"
        )
    if admin_password is None:
        raise InstallerError(
            "admin_password must be provided; prompt the user (CLI does this interactively)"
        )
    config_path = Path(config_path).expanduser()
    content_dir = Path(content_dir).expanduser()
    users_file = Path(users_file).expanduser()
    messages: list[str] = []
    if config_path.exists():
        if not force:
            logger.info("config %s already exists; leaving untouched", config_path)
            messages.append("config exists, leaving untouched (use --force to overwrite)")
            return InstallResult(
                config_path=config_path,
                content_dir=content_dir,
                users_file=users_file,
                service_user=None,
                password_hash="",
                session_key="",
                systemd_unit_path=None,
                messages=messages,
            )
        backup = _backup_path(config_path)
        backup.write_text(config_path.read_text(encoding="utf-8"), encoding="utf-8")
        messages.append(f"backed up existing config to {backup}")
    config_path.parent.mkdir(parents=True, exist_ok=True)
    users_file.parent.mkdir(parents=True, exist_ok=True)
    content_dir.mkdir(parents=True, exist_ok=True)
    (content_dir / "media").mkdir(exist_ok=True)
    from .password import hash_password
    password_hash = hash_password(admin_password)
    session_key = secrets.token_hex(64)
    rendered = _mutate_config_text(
        config_template,
        host="::1",
        env="development",
        trust_proxy=False,
        cookie_secure=False,
        content_dir=str(content_dir),
        users_file=str(users_file),
        password_hash=password_hash,
        session_key=session_key,
    )
    config_path.write_text(rendered, encoding="utf-8")
    messages.append(f"wrote config to {config_path}")
    users_file.touch(exist_ok=True)
    messages.append("per-user install complete; no systemd unit installed")
    return InstallResult(
        config_path=config_path,
        content_dir=content_dir,
        users_file=users_file,
        service_user=None,
        password_hash=password_hash,
        session_key=session_key,
        systemd_unit_path=None,
        messages=messages,
    )
 def inspect(
    config_path: Path = SYSTEM_CONFIG_PATH,
    content_dir: Path = SYSTEM_CONTENT_DIR,
    users_file: Path = SYSTEM_USERS_FILE,
    systemd_unit_path: Path = SYSTEMD_UNIT_PATH,
 ) -> dict[str, object]:
    """Return a JSON-serialisable snapshot of an installation.
    The shape matches what ``volumen status`` prints; safe to call without
    root and without mutating anything on disk.
    """
    config_path = Path(config_path)
    content_dir = Path(content_dir)
    users_file = Path(users_file)
    systemd_unit_path = Path(systemd_unit_path)
    issues: list[str] = []
    config_exists = config_path.is_file()
    data_dir_exists = content_dir.parent.is_dir()
    posts_subdir_exists = content_dir.is_dir()
    media_subdir_exists = (content_dir / "media").is_dir()
    users_file_exists = users_file.is_file()
    password_hash_set = False
    session_key_ok = False
    if config_exists:
        try:
            import tomllib
            with open(config_path, "rb") as fh:
                data = tomllib.load(fh)
            admin = data.get("admin", {})
            pw_hash = str(admin.get("password_hash", ""))
            session_key = str(admin.get("session_key", ""))
            password_hash_set = bool(pw_hash)
            session_key_ok = len(session_key) >= 64
            if not password_hash_set:
                issues.append("admin password_hash is empty")
            if not session_key_ok:
                issues.append("admin session_key is missing or shorter than 64 bytes")
        except OSError:
            issues.append("config not readable")
        except Exception as exc:  # tomllib.TOMLDecodeError or similar
            issues.append(f"config not parseable: {exc}")
    else:
        issues.append("config not found")
    if not data_dir_exists:
        issues.append("data dir not found")
    if data_dir_exists and not posts_subdir_exists:
        issues.append("posts subdir not found")
    if data_dir_exists and not media_subdir_exists:
        issues.append("media subdir not found")
    if not users_file_exists:
        issues.append("users file not found")
    systemd_unit_installed = systemd_unit_path.is_file()
    service_active = _systemctl_is_active("volumen")
    admin_user_present = False
    if users_file_exists:
        try:
            import tomllib
            with open(users_file, "rb") as fh:
                data = tomllib.load(fh)
            admin_user_present = any(
                entry.get("username") == "admin" for entry in data.get("users", [])
            )
            if not admin_user_present:
                issues.append("admin user not present in users file")
        except OSError:
            issues.append("users file not readable")
        except Exception as exc:
            issues.append(f"users file not parseable: {exc}")
    if systemd_unit_installed and service_active not in ("active", "unknown"):
        issues.append(f"systemd unit installed but service is {service_active}")
    return {
        "config_path": str(config_path),
        "data_dir": str(content_dir.parent),
        "users_file": str(users_file),
        "config_exists": config_exists,
        "data_dir_exists": data_dir_exists,
        "posts_subdir_exists": posts_subdir_exists,
        "media_subdir_exists": media_subdir_exists,
        "users_file_exists": users_file_exists,
        "password_hash_set": password_hash_set,
        "session_key_ok": session_key_ok,
        "systemd_unit_installed": systemd_unit_installed,
        "service_active": service_active,
        "admin_user_present": admin_user_present,
        "issues": issues,
    }
@@ -0,0 +1,163 @@
 """Markdown rendering using Python-Markdown with pymdown-extensions.
 After Python-Markdown produces HTML, the result is passed through
 :mod:`nh3` to strip dangerous content (``<script>``, event handlers,
 ``javascript:`` URLs, etc.). The allowed tag/attribute list is kept
 narrow on purpose so the output can be embedded in admin pages.
 """
 from __future__ import annotations
 import logging
 import re
 import threading
 import markdown
 import nh3
 logger = logging.getLogger(__name__)
 # Strict allowlist of tags and attributes. Matches the subset of HTML
 # that Python-Markdown can produce for the configured extensions.
 _ALLOWED_TAGS: frozenset[str] = frozenset(
    {
        "a",
        "abbr",
        "blockquote",
        "br",
        "caption",
        "code",
        "del",
        "div",
        "em",
        "figcaption",
        "figure",
        "h1",
        "h2",
        "h3",
        "h4",
        "h5",
        "h6",
        "hr",
        "img",
        "input",
        "li",
        "ol",
        "p",
        "pre",
        "span",
        "strong",
        "sub",
        "sup",
        "table",
        "tbody",
        "td",
        "th",
        "thead",
        "tr",
        "ul",
    }
 )
 # Per-tag attributes. ``rel`` is forced on links (see ``url_schemes``).
 _ALLOWED_ATTRIBUTES: dict[str, set[str]] = {
    "a": {"href", "title"},
    "img": {"src", "alt", "title", "width", "height", "loading"},
    "div": {"class"},
    "span": {"class"},
    "code": {"class"},
    "pre": {"class"},
    "th": {"align"},
    "td": {"align"},
    "input": {"type", "checked", "disabled"},
    "figure": {"class"},
    "figcaption": {"class"},
 }
 _ALLOWED_URL_SCHEMES: set[str] = {"http", "https", "mailto"}
 MAX_BODY_LENGTH: int = 1_048_576
 _md_lock = threading.Lock()
 _md: markdown.Markdown | None = None
 def _get_md() -> markdown.Markdown:
    global _md
    if _md is None:
        with _md_lock:
            if _md is None:
                _md = markdown.Markdown(
                    extensions=[
                        "markdown.extensions.extra",
                        "markdown.extensions.codehilite",
                        "markdown.extensions.toc",
                        "markdown.extensions.sane_lists",
                        "pymdownx.tasklist",
                        "pymdownx.tilde",
                    ],
                    extension_configs={
                        "pymdownx.tasklist": {"custom_checkbox": True},
                    },
                )
    return _md
 def _sanitize(html: str) -> str:
    """Run ``nh3.clean`` over *html* with our strict allowlist."""
    if not html:
        return html
    cleaned = nh3.clean(
        html,
        tags=_ALLOWED_TAGS,
        attributes=_ALLOWED_ATTRIBUTES,
        url_schemes=_ALLOWED_URL_SCHEMES,
        link_rel="noopener noreferrer",
        strip_comments=True,
    )
    return cleaned
 def render(text: str) -> str:
    """Render Markdown to HTML with GFM extensions, figure wrapping, and sanitisation."""
    if not text:
        return ""
    if len(text) > MAX_BODY_LENGTH:
        raise ValueError(f"Body exceeds {MAX_BODY_LENGTH} bytes")
    md = _get_md()
    with _md_lock:
        raw = md.convert(text)
        md.reset()
    return _sanitize(_wrap_figures(raw))
 _FIGURE_RE = re.compile(
    r'<img\s[^>]*\btitle=(["\'])(.*?)\1[^>]*/?>',
    re.IGNORECASE,
 )
 def _wrap_figures(html: str) -> str:
    """Wrap every <img title='...'> inside a <figure> with <figcaption>.
    Operates on the raw (pre-sanitisation) output so the title attribute
    is available before :func:`_sanitize` strips it.
    Uses regex matching instead of an XML parser to safely handle
    HTML5 void elements (``<br>``, ``<hr>``, etc.) that would cause
    ``ET.fromstring`` to fail.
    """
    def _replace(match: re.Match) -> str:
        img_tag = match.group(0)
        title = match.group(2)
        clean_img = re.sub(r'\s+title=(["\']).*?\1', "", img_tag)
        return (
            f"<figure>"
            f"{clean_img}"
            f'<div class="fig-info" aria-hidden="true">i</div>'
            f"<figcaption>{title}</figcaption>"
            f"</figure>"
        )
    return _FIGURE_RE.sub(_replace, html)
@@ -0,0 +1,123 @@
 """Password hashing and verification using scrypt.
 The module enforces a fixed set of scrypt parameters (N, R, P, dklen,
 salt length) so weaker configurations stored in older ``users.toml``
 files are rejected. Stored hashes use ``scrypt$<N>$<R>$<P>$<saltB64>$<hashB64>``.
 """
 from __future__ import annotations
 import base64
 import hashlib
 import hmac
 import logging
 import secrets
 logger = logging.getLogger(__name__)
 COST_N = 16384
 BLOCK_R = 8
 PARALLEL_P = 1
 KEY_LENGTH = 32
 SALT_BYTES = 16
 PREFIX = "scrypt"
 # Minimum scrypt parameters that we are willing to verify (policy floor).
 # Anything weaker must be re-hashed via ``needs_rehash``.
 MIN_N = COST_N
 MIN_R = BLOCK_R
 MIN_P = PARALLEL_P
 MIN_DKLEN = KEY_LENGTH
 # Maximum password length accepted for hashing (cap to bound scrypt work).
 MAX_PASSWORD_LENGTH = 1024
 def _b64(data: bytes) -> str:
    return base64.b64encode(data).decode("ascii")
 def _parts(encoded: str) -> tuple[int, int, int, bytes, bytes] | None:
    """Parse an encoded scrypt string. Returns ``None`` on malformed input."""
    parts = encoded.split("$")
    if len(parts) != 6 or parts[0] != PREFIX:
        return None
    try:
        _, n_str, r_str, p_str, salt_b64, hash_b64 = parts
        n, r, p = int(n_str), int(r_str), int(p_str)
        salt = base64.b64decode(salt_b64, validate=True)
        expected = base64.b64decode(hash_b64, validate=True)
    except ValueError, TypeError:
        return None
    return n, r, p, salt, expected
 def hash_password(password: str) -> str:
    """Hash a password and return the encoded scrypt string."""
    if not isinstance(password, str):
        raise TypeError("password must be a str")
    if not password:
        raise ValueError("password must not be empty")
    if len(password) > MAX_PASSWORD_LENGTH:
        raise ValueError(f"password longer than {MAX_PASSWORD_LENGTH} characters")
    salt = secrets.token_bytes(SALT_BYTES)
    derived = hashlib.scrypt(
        password.encode("utf-8"),
        salt=salt,
        n=COST_N,
        r=BLOCK_R,
        p=PARALLEL_P,
        dklen=KEY_LENGTH,
    )
    return f"{PREFIX}${COST_N}${BLOCK_R}${PARALLEL_P}${_b64(salt)}${_b64(derived)}"
 def verify_password(password: str, encoded: str) -> bool:
    """Verify a password against an encoded scrypt hash in constant time.
    Hashes that were produced with parameters below the policy floor, or
    that are malformed, are rejected (``False``) and a warning is logged.
    """
    parsed = _parts(encoded)
    if parsed is None:
        logger.warning("password verify: malformed stored hash")
        return False
    n, r, p, salt, expected = parsed
    if not (n >= MIN_N and r >= MIN_R and p >= MIN_P and len(expected) >= MIN_DKLEN):
        logger.warning(
            "password verify: stored hash uses weak scrypt parameters "
            "(N=%d, r=%d, p=%d, dklen=%d); rejecting",
            n,
            r,
            p,
            len(expected),
        )
        return False
    try:
        derived = hashlib.scrypt(
            password.encode("utf-8"),
            salt=salt,
            n=n,
            r=r,
            p=p,
            dklen=len(expected),
        )
    except (ValueError, OSError) as exc:
        logger.warning("password verify: scrypt failed: %s", exc)
        return False
    # hmac.compare_digest is constant-time and avoids leaks of the
    # derived-byte length when lengths differ.
    return hmac.compare_digest(derived, expected)
 def needs_rehash(stored: str) -> bool:
    """Return True if ``stored`` should be re-hashed on next successful login.
    Triggers when the hash uses weaker parameters than the current policy
    floor or when the hash version prefix is unrecognised.
    """
    parsed = _parts(stored)
    if parsed is None:
        return True
    n, r, p, _salt, expected = parsed
    return not (n >= MIN_N and r >= MIN_R and p >= MIN_P and len(expected) >= MIN_DKLEN)
@@ -0,0 +1,171 @@
 """Payload construction, filtering, parsing, and post validation helpers."""
 from __future__ import annotations
 import re
 from datetime import date
 from typing import TYPE_CHECKING, Any
 if TYPE_CHECKING:
    from .config import Config
    from .post import Post
    from .store import Store
 SLUG_REGEX: re.Pattern[str] = re.compile(r"\A[a-z0-9](?:[a-z0-9._-]*[a-z0-9])?\Z")
 MAX_SLUG_LENGTH: int = 200
 def site_payload(config: Config) -> dict[str, Any]:
    """Build the ``/api/volumen/site`` payload."""
    keys = ("title", "description", "base_url", "language", "author", "fediverse_creator")
    return {key: config.site.get(key) for key in keys}
 def published_posts(store: Store) -> list[Post]:
    """Return all published, non-scheduled posts, newest first."""
    all_posts = store.all()
    visible = [post for post in all_posts if not post.draft and not post.scheduled]
    visible.sort(key=lambda post: post.date_string or "", reverse=True)
    return visible
 def filtered_posts(store: Store, params: dict[str, str]) -> list[Post]:
    """Filter published posts by ``lang``, ``tag``, and ``q``."""
    return _filter_posts(published_posts(store), params)
 def _filter_posts(posts: list[Post], params: dict[str, str]) -> list[Post]:
    lang = params.get("lang", "")
    if lang:
        posts = [post for post in posts if post.lang == lang or post.all_langs]
    tag = params.get("tag", "")
    if tag:
        posts = [post for post in posts if tag in post.tags]
    query = params.get("q", "").strip().lower()
    if query:
        posts = [
            post
            for post in posts
            if query in (post.title or "").lower() or query in (post.body or "").lower()
        ]
    return posts
 def posts_payload(
    store: Store, params: dict[str, str], page: int = 1, limit: int = 20
 ) -> dict[str, Any]:
    """Build the paginated payload for ``/api/volumen/posts``."""
    posts = filtered_posts(store, params)
    page = max(page, 1)
    limit = min(max(limit, 1), 100)
    offset = (page - 1) * limit
    total = len(posts)
    return {
        "page": page,
        "page_size": limit,
        "total": total,
        "has_next": offset + limit < total,
        "has_prev": page > 1,
        "posts": [post.summary() for post in posts[offset : offset + limit]],
    }
 def tag_counts(store: Store) -> list[dict[str, Any]]:
    """Build tag-cloud data sorted by frequency and then name."""
    counts: dict[str, int] = {}
    for post in published_posts(store):
        for tag in post.tags:
            counts[tag] = counts.get(tag, 0) + 1
    sorted_counts = sorted(counts.items(), key=lambda item: (-item[1], item[0]))
    return [{"name": name, "count": count} for name, count in sorted_counts]
 def presence(value: Any) -> str | None:
    """Return a stripped string or ``None`` if empty."""
    text = str(value).strip() if value is not None else ""
    return text if text else None
 def parse_date(value: Any) -> date | None:
    """Parse an ISO 8601 date string, returning ``None`` on failure."""
    text = presence(value)
    if text is None:
        return None
    try:
        return date.fromisoformat(text)
    except ValueError:
        return None
 def parse_tags(value: Any) -> list[str]:
    """Parse a comma-separated tag string."""
    raw = presence(value)
    if raw is None:
        return []
    return [tag.strip() for tag in raw.split(",") if tag.strip()]
 def post_from_params(form_data: dict[str, str], existing: Post | None = None) -> Post:
    """Build a :class:`Post` from HTTP form data, carrying *existing*.path."""
    from .post import Post as _Post
    metadata = _base_metadata(form_data, existing)
    cleaned = _clean_metadata(metadata)
    post = _Post(metadata=cleaned, body=form_data.get("body", ""))
    if existing is not None:
        post.path = existing.path
    return post
 def _base_metadata(form_data: dict[str, str], existing: Post | None = None) -> dict[str, Any]:
    return {
        "title": presence(form_data.get("title")),
        "slug": presence(form_data.get("slug")) or (existing.slug if existing else None),
        "lang": presence(form_data.get("lang")),
        "author": presence(form_data.get("author")),
        "fediverse_creator": presence(form_data.get("fediverse_creator")),
        "date": parse_date(form_data.get("date")),
        "publish_at": parse_date(form_data.get("publish_at")),
        "tags": parse_tags(form_data.get("tags")),
        "excerpt": presence(form_data.get("excerpt")),
        "cover": presence(form_data.get("cover")),
        "cover_alt": presence(form_data.get("cover_alt")),
        "cover_caption": presence(form_data.get("cover_caption")),
        "draft": form_data.get("draft") == "on",
        "all_langs": form_data.get("all_langs") == "on",
    }
 def _clean_metadata(metadata: dict[str, Any]) -> dict[str, Any]:
    """Drop nil, empty, and false entries."""
    return {
        key: value
        for key, value in metadata.items()
        if value is not None and value != "" and value != [] and value is not False
    }
 def creation_error(post: Post, store: Store, existing: Post | None = None) -> str | None:
    """Validate a post before saving, returning an error or ``None``."""
    if presence(post.slug) is None:
        return "Slug is required."
    if len(post.slug or "") > MAX_SLUG_LENGTH:
        return f"Slug must be at most {MAX_SLUG_LENGTH} characters."
    if not SLUG_REGEX.match(post.slug or ""):
        return "Invalid slug."
    found = store.find(post.slug)
    if found is not None and (existing is None or found.path != existing.path):
        return "A post with that slug already exists."
    return fediverse_creator_error(post)
 def fediverse_creator_error(post: Post) -> str | None:
    """Validate the optional fediverse creator field."""
    from .post import FEDIVERSE_CREATOR_REGEX
    value = post.metadata.get("fediverse_creator") if hasattr(post, "metadata") else None
    if value is None:
        return None
    if re.match(FEDIVERSE_CREATOR_REGEX, str(value)):
        return None
    return "Fediverse creator must look like @user@host."
@@ -0,0 +1,177 @@
 """A single blog post: TOML frontmatter metadata plus a Markdown body."""
 from __future__ import annotations
 import re
 from datetime import date, datetime
 from typing import Any
 from .frontmatter import dump as fm_dump
 from .frontmatter import parse as fm_parse
 from .markdown import render as md_render
 FEDIVERSE_CREATOR_REGEX = re.compile(r"\A@[^@\s]+@[^@\s]+\Z")
 _RE_HTML_TAG = re.compile(r"<[^>]+>")
 _RE_MD_CHARS = re.compile(r"[*_`>#]")
 class Post:
    """A single blog post with metadata and Markdown body."""
    def __init__(
        self, metadata: dict[str, Any] | None = None, body: str = "", path: str | None = None
    ) -> None:
        self.metadata: dict[str, Any] = {str(k): v for k, v in (metadata or {}).items()}
        self.body = body
        self.path: str | None = path
    @classmethod
    def parse(cls, content: str) -> Post:
        metadata, body = fm_parse(content)
        return cls(metadata=metadata, body=body)
    @property
    def slug(self) -> str | None:
        return self.metadata.get("slug")
    @property
    def title(self) -> str | None:
        return self.metadata.get("title")
    @property
    def lang(self) -> str | None:
        return self.metadata.get("lang")
    @property
    def author(self) -> str | None:
        return self.metadata.get("author")
    @property
    def tags(self) -> list[str]:
        raw = self.metadata.get("tags", [])
        if isinstance(raw, list):
            return [str(t) for t in raw]
        return []
    @property
    def draft(self) -> bool:
        return self.metadata.get("draft") is True
    @property
    def all_langs(self) -> bool:
        return self.metadata.get("all_langs") is True
    @property
    def translations(self) -> dict[str, str]:
        val = self.metadata.get("translations", {})
        if isinstance(val, dict):
            return {str(k): str(v) for k, v in val.items()}
        return {}
    @property
    def cover(self) -> str | None:
        return self.metadata.get("cover")
    @property
    def cover_alt(self) -> str | None:
        return self.metadata.get("cover_alt")
    @property
    def cover_caption(self) -> str | None:
        return self.metadata.get("cover_caption")
    @property
    def fediverse_creator(self) -> str | None:
        value = self.metadata.get("fediverse_creator")
        if value is None:
            return None
        text = str(value).strip()
        return text if text else None
    @property
    def valid_fediverse_creator(self) -> bool:
        fc = self.fediverse_creator
        return fc is not None and bool(FEDIVERSE_CREATOR_REGEX.match(fc))
    @property
    def publish_at(self) -> date | None:
        val = self.metadata.get("publish_at")
        if val is None:
            return None
        if isinstance(val, (date, datetime)):
            return val if isinstance(val, date) else val.date()
        try:
            return date.fromisoformat(str(val))
        except ValueError, TypeError:
            return None
    @property
    def scheduled(self) -> bool:
        pub = self.publish_at
        return pub is not None and pub > date.today()
    @property
    def reading_time(self) -> int:
        words = len(self.body.split())
        return max(1, (words + 199) // 200)
    @property
    def date_string(self) -> str | None:
        value = self.metadata.get("date")
        if value is None:
            return None
        if isinstance(value, (date, datetime)):
            return value.strftime("%Y-%m-%d")
        return str(value)
    @property
    def excerpt(self) -> str:
        text = self.metadata.get("excerpt")
        if text and str(text).strip():
            return str(text)
        return self._derived_excerpt()
    @property
    def html(self) -> str:
        return md_render(self.body)
    def to_file(self) -> str:
        return fm_dump(self.metadata, self.body)
    def summary(self) -> dict[str, Any]:
        return {
            "slug": self.slug,
            "title": self.title,
            "excerpt": self.excerpt,
            "date": self.date_string,
            "lang": self.lang,
            "tags": self.tags,
            "author": self.author,
            "fediverse_creator": self.fediverse_creator,
            "cover": self.cover,
            "cover_alt": self.cover_alt,
            "cover_caption": self.cover_caption,
            "reading_time": self.reading_time,
            "translations": self.translations,
            "url": f"/api/volumen/posts/{self.slug}",
        }
    def detail(self) -> dict[str, Any]:
        base = self.summary()
        base["body"] = self.body
        base["html"] = self.html
        return base
    def _derived_excerpt(self, limit: int = 200) -> str:
        paragraphs = self.body.split("\n\n")
        for para in paragraphs:
            stripped = para.strip()
            if not stripped or stripped.startswith("#"):
                continue
            cleaned = _RE_HTML_TAG.sub("", stripped)
            cleaned = _RE_MD_CHARS.sub("", cleaned).strip()
            if len(cleaned) > limit:
                return f"{cleaned[:limit].rstrip()}\u2026"
            return cleaned
        return ""
@@ -0,0 +1,25 @@
 """Compatibility imports for the former monolithic server module."""
 from __future__ import annotations
 from typing import Any
 from . import app as _app
 from . import auth as _auth
 from . import dependencies as _dependencies
 from . import payloads as _payloads
 from . import upload_validation as _upload_validation
 from . import user_settings as _user_settings
 from .app import create_app as create_app
 _MODULES = (_app, _dependencies, _auth, _payloads, _upload_validation, _user_settings)
 def __getattr__(name: str) -> Any:
    """Resolve legacy attributes from their focused modules."""
    for module in _MODULES:
        try:
            return getattr(module, name)
        except AttributeError:
            continue
    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
@@ -0,0 +1,374 @@
 """Reads and writes Markdown posts and media in a content directory."""
 from __future__ import annotations
 import contextlib
 import logging
 import os
 import re
 import secrets
 import shutil
 import tempfile
 import threading
 import tomllib
 from pathlib import Path
 from .post import Post
 logger = logging.getLogger(__name__)
 SAFE_SLUG_RE = re.compile(r"[^a-zA-Z0-9._-]")
 # WebP: "RIFF....WEBP" (12 bytes total magic).
 WEBP_SIGNATURE = b"RIFF"
 WEBP_TAG_OFFSET = 8
 WEBP_TAG_VALUE = b"WEBP"
 # AVIF: ISO BMFF; bytes 4..7 are the box size, bytes 8..11 are "ftyp",
 # followed by the major brand (4 bytes).
 AVIF_BRANDS = (b"avif", b"avis")
 # Allowed extensions and matching Content-Type values.
 ALLOWED_IMAGE_EXTENSIONS: tuple[str, ...] = (".webp", ".avif")
 EXTENSION_TO_MIME: dict[str, str] = {
    ".webp": "image/webp",
    ".avif": "image/avif",
 }
 def validate_image_signature(data: bytes, ext: str) -> bool:
    """Verify that *data* matches the file signature for image *ext*.
    *ext* must be one of ``.webp`` or ``.avif`` (lowercase, with dot).
    Returns False if the data is too short or the magic doesn't match.
    """
    ext = ext.lower()
    if ext == ".webp":
        if len(data) < 12:
            return False
        return (
            data[:4] == WEBP_SIGNATURE
            and data[WEBP_TAG_OFFSET : WEBP_TAG_OFFSET + 4] == WEBP_TAG_VALUE
        )
    if ext == ".avif":
        if len(data) < 16:
            return False
        if data[4:8] != b"ftyp":
            return False
        brand = data[8:12]
        return brand in AVIF_BRANDS
    return False
 def detect_image_extension(data: bytes) -> str | None:
    """Detect the canonical image extension (``.webp`` or ``.avif``) from bytes.
    Returns ``None`` if neither magic matches.
    """
    if validate_image_signature(data, ".webp"):
        return ".webp"
    if validate_image_signature(data, ".avif"):
        return ".avif"
    return None
 class Store:
    """Manages posts on disk in a flat or language-subdivided directory."""
    def __init__(
        self,
        content_dir: str,
        default_lang: str | None = None,
        follow_symlinks: bool = False,
    ) -> None:
        self.content_dir = os.path.abspath(content_dir)
        self._default_lang = default_lang
        self._follow_symlinks = follow_symlinks
        self._cached: list[Post] | None = None
        self._snapshot: tuple[tuple[str, int, int], ...] | None = None
        self._save_locks: dict[str, threading.Lock] = {}
        self._locks_guard = threading.Lock()
        self._slug_index: dict[str, str] = {}
    # ------------------------------------------------------------------
    # Read path
    # ------------------------------------------------------------------
    def all(self) -> list[Post]:
        snapshot = self._build_snapshot()
        if self._cached is not None and self._snapshot is not None and snapshot == self._snapshot:
            return list(self._cached)
        self._snapshot = snapshot
        self._cached = [
            p for p in (self._load_post(path) for path in self._md_files()) if p is not None
        ]
        self._build_index()
        return list(self._cached)
    def find(self, slug: str, lang: str | None = None) -> Post | None:
        if slug in self._slug_index:
            post = self._load_post(self._slug_index[slug])
            if post is not None and (lang is None or post.lang == lang or post.all_langs):
                return post
            return None
        for post in self.all():
            if post.slug == slug and (lang is None or post.lang == lang or post.all_langs):
                return post
        return None
    # ------------------------------------------------------------------
    # Write path
    # ------------------------------------------------------------------
    def save(self, post: Post) -> Post:
        target = post.path or self._default_path_for(post)
        os.makedirs(os.path.dirname(target), exist_ok=True)
        # Per-target lock prevents racing writers from clobbering each
        # other's tempfiles when they target the same path.
        with self._locks_guard:
            lock = self._save_locks.get(target)
            if lock is None:
                lock = threading.Lock()
                self._save_locks[target] = lock
        with lock:
            with tempfile.NamedTemporaryFile(
                mode="w",
                encoding="utf-8",
                dir=os.path.dirname(target) or ".",
                prefix=os.path.basename(target) + ".",
                suffix=".tmp",
                delete=False,
            ) as fh:
                tmp_path = fh.name
                fh.write(post.to_file())
                fh.flush()
                os.fsync(fh.fileno())
            os.replace(tmp_path, target)
            try:
                dir_fd = os.open(os.path.dirname(target) or ".", os.O_DIRECTORY)
                try:
                    os.fsync(dir_fd)
                finally:
                    os.close(dir_fd)
            except OSError, AttributeError:
                # On Windows os.fsync on a directory is not supported;
                # we don't run there but guard for forward-compat.
                pass
        post.path = target
        self._cached = None
        self._snapshot = None
        return post
    def delete(self, slug: str, lang: str | None = None) -> Post | None:
        post = self.find(slug, lang=lang)
        if post and post.path:
            try:
                os.remove(post.path)
            except OSError as exc:
                logger.warning("store: failed to remove %s: %s", post.path, exc)
                return None
            self._cached = None
            self._snapshot = None
        return post
    # ------------------------------------------------------------------
    # Media
    # ------------------------------------------------------------------
    @property
    def media_dir(self) -> str:
        return os.path.join(self.content_dir, "media")
    def _write_media_atomic(
        self,
        dest: str,
        source: object,
        bytes_data: bytes | None = None,
    ) -> None:
        tmp_fd, tmp = tempfile.mkstemp(dir=self.media_dir)
        try:
            with os.fdopen(tmp_fd, "wb") as fh:
                if bytes_data is not None:
                    fh.write(bytes_data)
                elif hasattr(source, "read"):
                    shutil.copyfileobj(source, fh)  # type: ignore[arg-type]
                else:
                    with open(source, "rb") as src:  # type: ignore[arg-type]
                        shutil.copyfileobj(src, fh)
                fh.flush()
                os.fsync(fh.fileno())
            os.replace(tmp, dest)
            try:
                dir_fd = os.open(os.path.dirname(dest) or ".", os.O_DIRECTORY)
                try:
                    os.fsync(dir_fd)
                finally:
                    os.close(dir_fd)
            except OSError, AttributeError:
                pass
        except Exception:
            with contextlib.suppress(OSError):
                os.remove(tmp)
            raise
    def store_upload(
        self,
        original_name: str,
        source: object,
        bytes_data: bytes | None = None,
    ) -> str:
        """Persist an uploaded image and return its public URL.
        Extension and Content-Type are determined from the *bytes_data*
        signature (preferred) or, as a fallback, from the original
        filename (only ``.webp``/``.avif`` survive sanitisation).
        Caller is responsible for size and signature validation.
        """
        ext = self._resolve_extension(original_name, bytes_data)
        os.makedirs(self.media_dir, exist_ok=True)
        name = f"{secrets.token_hex(4)}-upload{ext}"
        dest = os.path.join(self.media_dir, name)
        self._write_media_atomic(dest, source, bytes_data)
        return f"/media/{name}"
    def store_user_photo(
        self,
        username: str,
        original_name: str,
        source: object,
        bytes_data: bytes | None = None,
    ) -> str:
        """Persist a user-profile photo and return its public URL.
        See :meth:`store_upload` for signature-based extension logic.
        """
        ext = self._resolve_extension(original_name, bytes_data)
        safe_user = re.sub(r"[^a-zA-Z0-9_-]", "", username) or "user"
        name = f"{safe_user}-{secrets.token_hex(4)}{ext}"
        os.makedirs(self.media_dir, exist_ok=True)
        dest = os.path.join(self.media_dir, name)
        self._write_media_atomic(dest, source, bytes_data)
        return f"/media/{name}"
    def delete_media(self, url: str) -> bool:
        """Delete a media file by its public URL (e.g. ``/media/foo.webp``).
        Returns True if a file was removed, False otherwise. Caller is
        responsible for confirming the URL is unreferenced.
        """
        if not url or not url.startswith("/media/"):
            return False
        name = os.path.basename(url)
        path = os.path.join(self.media_dir, name)
        if not self._is_within(self.media_dir, path):
            return False
        try:
            os.remove(path)
            return True
        except OSError:
            return False
    def media_file(self, name: str) -> str | None:
        safe = os.path.basename(name)
        path = os.path.join(self.media_dir, safe)
        if not os.path.isfile(path):
            return None
        if not self._is_within(self.media_dir, path):
            return None
        return path
    # ------------------------------------------------------------------
    # Internals
    # ------------------------------------------------------------------
    def _md_files(self) -> list[str]:
        """Walk ``content_dir`` and skip any directory named ``media``."""
        root = Path(self.content_dir)
        results: list[str] = []
        for path in root.rglob("*.md"):
            parts = path.relative_to(root).parts
            if any(part == "media" for part in parts[:-1]):
                continue
            if not self._follow_symlinks and path.is_symlink():
                continue
            results.append(str(path))
        return results
    def _build_snapshot(self) -> tuple[tuple[str, int, int], ...]:
        """Build a (path, mtime_ns, size) snapshot for every tracked file."""
        try:
            files = self._md_files()
        except OSError:
            return ()
        rows: list[tuple[str, int, int]] = []
        for f in files:
            try:
                st = os.stat(f)
            except OSError:
                continue
            rows.append((f, st.st_mtime_ns, st.st_size))
        return tuple(sorted(rows))
    def _build_index(self) -> None:
        """Rebuild the slug→path index from the current post cache."""
        self._slug_index.clear()
        if self._cached is None:
            return
        for post in self._cached:
            if post.path:
                self._slug_index[post.slug] = post.path
    def _load_post(self, path: str) -> Post | None:
        try:
            with open(path, encoding="utf-8") as fh:
                post = Post.parse(fh.read())
        except (OSError, tomllib.TOMLDecodeError, ValueError) as e:
            logger.warning("volumen: skipping %s: %s", path, e)
            return None
        if not post.metadata.get("slug"):
            post.metadata["slug"] = os.path.splitext(os.path.basename(path))[0]
        if not post.metadata.get("lang"):
            post.metadata["lang"] = self._lang_from_path(path) or self._default_lang
        post.path = path
        return post
    def _lang_from_path(self, path: str) -> str | None:
        parent = os.path.dirname(os.path.abspath(path))
        if parent == self.content_dir:
            return None
        return os.path.basename(parent)
    def _default_path_for(self, post: Post) -> str:
        directory = self.content_dir
        if post.lang and post.lang != self._default_lang:
            directory = os.path.join(directory, post.lang)
        target = os.path.join(directory, f"{post.slug}.md")
        target_abs = os.path.abspath(target)
        content_abs = os.path.abspath(self.content_dir)
        if not (target_abs == content_abs or target_abs.startswith(content_abs + os.sep)):
            raise ValueError("slug escapes content directory")
        return target
    def _resolve_extension(self, original_name: str, bytes_data: bytes | None) -> str:
        """Pick a canonical extension based on the signature (preferred)
        or, as a fallback, the original filename (whitelisted to
        ``.webp``/``.avif``).
        """
        if bytes_data is not None:
            detected = detect_image_extension(bytes_data)
            if detected is not None:
                return detected
        base = os.path.basename(original_name)
        ext = re.sub(r"[^a-zA-Z0-9.]", "", os.path.splitext(base)[1]).lower()
        if ext in ALLOWED_IMAGE_EXTENSIONS:
            return ext
        return ".webp"
    def _is_within(self, directory: str, path: str) -> bool:
        """Check that *path* is inside *directory* (canonicalised)."""
        try:
            dir_resolved = Path(directory).resolve()
            path_resolved = Path(path).resolve()
            return path_resolved == dir_resolved or path_resolved.is_relative_to(dir_resolved)
        except OSError, RuntimeError:
            return False
@@ -0,0 +1,86 @@
 """Validation helpers for uploaded media files."""
 from __future__ import annotations
 import json
 from typing import Any
 from fastapi import HTTPException, UploadFile
 from starlette.concurrency import run_in_threadpool
 ALLOWED_UPLOAD_TYPES: tuple[str, ...] = ("image/webp", "image/avif")
 ALLOWED_UPLOAD_EXTENSIONS: tuple[str, ...] = (".webp", ".avif")
 async def _read_upload_bytes(upload: UploadFile, max_bytes: int) -> bytes:
    chunks: list[bytes] = []
    total = 0
    while True:
        chunk = await upload.read(65536)
        if not chunk:
            break
        total += len(chunk)
        if total > max_bytes:
            raise HTTPException(
                status_code=413,
                detail=json.dumps({"message": "Payload too large", "limit": max_bytes}),
            )
        chunks.append(chunk)
    return b"".join(chunks)
 async def validate_upload(upload: Any, *, max_bytes: int | None = None) -> tuple[bytes, str]:
    """Validate upload size, MIME type, and signature."""
    from .config import DEFAULT_MAX_UPLOAD_BYTES
    from .store import detect_image_extension
    if max_bytes is None:
        max_bytes = DEFAULT_MAX_UPLOAD_BYTES
    data = await _read_upload_bytes(upload, max_bytes)
    declared = (getattr(upload, "content_type", None) or "").split(";")[0].strip().lower()
    if declared not in ALLOWED_UPLOAD_TYPES:
        raise HTTPException(
            status_code=415,
            detail=json.dumps(
                {
                    "error": "unsupported_format",
                    "message": (
                        "Only WebP (.webp) and AVIF (.avif) images are supported. "
                        "Please convert your image before uploading — for example with "
                        "`cwebp` (JPEG/PNG → WebP) or `avifenc` (PNG/JPEG → AVIF)."
                    ),
                    "allowed": list(ALLOWED_UPLOAD_TYPES),
                }
            ),
        )
    extension = await run_in_threadpool(detect_image_extension, data)
    if extension is None:
        raise HTTPException(
            status_code=415,
            detail=json.dumps(
                {
                    "error": "invalid_signature",
                    "message": (
                        "Uploaded file does not look like a valid WebP or AVIF image. "
                        "Make sure the bytes match the declared MIME type."
                    ),
                }
            ),
        )
    expected_mime = {".webp": "image/webp", ".avif": "image/avif"}.get(extension)
    if expected_mime is None or expected_mime != declared:
        raise HTTPException(
            status_code=415,
            detail=json.dumps(
                {
                    "error": "mime_mismatch",
                    "message": (
                        "Declared MIME does not match the file signature. "
                        "Only WebP or AVIF images are accepted."
                    ),
                }
            ),
        )
    return data, extension
@@ -0,0 +1,187 @@
 """User account and profile settings action helpers."""
 from __future__ import annotations
 import re
 from typing import TYPE_CHECKING, Any
 from starlette.concurrency import run_in_threadpool
 from .auth import password_error
 from .payloads import presence
 from .upload_validation import validate_upload
 if TYPE_CHECKING:
    from .store import Store
    from .users import Users
 USERNAME_REGEX: re.Pattern[str] = re.compile(r"\A[a-zA-Z0-9._-]+\Z")
 def change_password(
    users_obj: Users,
    current_username: str,
    current_password: str,
    new_password: str,
    *,
    min_length: int | None = None,
    max_length: int | None = None,
 ) -> tuple[str | None, str | None]:
    """Change the user's password."""
    if not users_obj.authenticate(current_username, current_password):
        return ("Current password is incorrect.", None)
    fresh = presence(new_password)
    if fresh is None:
        return ("New password cannot be empty.", None)
    error = password_error(fresh, min_length=min_length, max_length=max_length)
    if error is not None:
        return (error, None)
    users_obj.update_password(current_username, fresh)
    return (None, "Password updated.")
 def change_username(
    users_obj: Users,
    current_username: str,
    new_username: str,
    session: dict[str, Any],
 ) -> tuple[str | None, str | None]:
    """Rename the current user and update the session."""
    name = presence(new_username)
    if name is None:
        return ("Username cannot be empty.", None)
    if not re.match(USERNAME_REGEX, name):
        return ("Username may use letters, numbers, dot, dash, underscore.", None)
    if name == current_username:
        return (None, "Username unchanged.")
    if users_obj.rename(current_username, name):
        session["user"] = name
        return (None, "Username updated.")
    return ("That username is already taken.", None)
 def change_name(
    users_obj: Users,
    current_username: str,
    display_name: str,
 ) -> tuple[str | None, str | None]:
    """Update or clear the display name."""
    name = display_name.strip()
    name = name if name else None
    users_obj.update_name(current_username, name)
    return (None, "Display name updated." if name else "Display name cleared.")
 def change_fediverse_creator(
    users_obj: Users,
    current_username: str,
    value: str,
 ) -> tuple[str | None, str | None]:
    """Update or clear the fediverse handle."""
    from .post import FEDIVERSE_CREATOR_REGEX
    text = value.strip()
    if not text:
        users_obj.update_fediverse_creator(current_username, None)
        return (None, "Fediverse handle cleared.")
    if not re.match(FEDIVERSE_CREATOR_REGEX, text):
        return ("Fediverse handle must look like @user@host.", None)
    users_obj.update_fediverse_creator(current_username, text)
    return (None, "Fediverse handle updated.")
 async def change_photo(
    users_obj: Users,
    store: Store,
    current_username: str,
    upload: Any,
 ) -> tuple[str | None, str | None]:
    """Store a profile photo and remove the previous file if unreferenced."""
    bytes_data, _extension = await validate_upload(upload)
    url = await run_in_threadpool(store.store_upload, upload.filename, upload.file, bytes_data)
    previous = None
    user = users_obj.find(current_username)
    if user is not None:
        previous = user.photo
    users_obj.update_photo(current_username, url)
    if previous and previous != url:
        await run_in_threadpool(_delete_unreferenced_media, users_obj, store, previous)
    return (None, "Profile photo updated.")
 async def remove_photo(
    users_obj: Users,
    current_username: str,
    store: Store | None = None,
 ) -> tuple[str | None, str | None]:
    """Remove the profile photo and optionally delete the file."""
    user = users_obj.find(current_username)
    if user is not None and user.photo and store is not None:
        await run_in_threadpool(_delete_unreferenced_media, users_obj, store, user.photo)
    users_obj.update_photo(current_username, None)
    return (None, "Profile photo removed.")
 def create_user(
    users_obj: Users,
    username: str,
    password: str,
    role: str,
    *,
    min_length: int | None = None,
    max_length: int | None = None,
 ) -> tuple[str | None, str | None]:
    """Create a new user."""
    name = presence(username)
    password_value = presence(password)
    if name is None or password_value is None:
        return ("Username and password are required.", None)
    if not re.match(USERNAME_REGEX, name):
        return ("Username may use letters, numbers, dot, dash, underscore.", None)
    error = password_error(password_value, min_length=min_length, max_length=max_length)
    if error is not None:
        return (error, None)
    if users_obj.add(name, password_value, role):
        return (None, "User added.")
    return ("That username already exists.", None)
 async def remove_user(
    users_obj: Users,
    current_username: str,
    target_username: str,
    store: Store | None = None,
 ) -> tuple[str | None, str | None]:
    """Delete a user and clean up their profile photo."""
    if target_username == current_username:
        return ("You cannot delete your own account.", None)
    target = users_obj.find(target_username)
    if target is not None and target.photo and store is not None:
        await run_in_threadpool(_delete_unreferenced_media, users_obj, store, target.photo)
    if users_obj.delete(target_username):
        return (None, "User removed.")
    return ("Cannot remove the last user or the last admin.", None)
 def change_role(
    users_obj: Users,
    current_username: str,
    target_username: str,
    new_role: str,
 ) -> tuple[str | None, str | None]:
    """Change a user's role."""
    if target_username == current_username:
        return ("You cannot change your own role.", None)
    if users_obj.set_role(target_username, new_role):
        return (None, "Role updated.")
    return ("Could not change role (last admin?).", None)
 def _delete_unreferenced_media(users_obj: Users, store: Store, url: str) -> None:
    """Delete *url* from disk if no other user record references it."""
    if not url or not url.startswith("/media/"):
        return
    in_use = any(user.photo == url for user in users_obj.all)
    if in_use:
        return
    store.delete_media(url)
@@ -0,0 +1,230 @@
 """File-backed set of admin users, stored as a TOML [[users]] array."""
 from __future__ import annotations
 import contextlib
 import logging
 import os
 import tempfile
 import threading
 import tomllib
 from dataclasses import dataclass
 from typing import Any
 import tomli_w
 from .password import hash_password as _hash_pw
 from .password import needs_rehash as _needs_rehash
 from .password import verify_password as _verify_pw
 logger = logging.getLogger(__name__)
 ROLES = ("admin", "author")
 DEFAULT_ROLE = "author"
@dataclass
 class User:
    username: str
    password_hash: str
    role: str = "author"
    name: str | None = None
    fediverse_creator: str | None = None
    photo: str | None = None
 class Users:
    """File-backed collection of admin/authors.
    The class serialises read-modify-write transactions with an internal
    lock so concurrent admin actions cannot clobber each other. A
    per-instance snapshot of (path, mtime_ns, size) is used for cache
    invalidation so out-of-band edits are picked up promptly.
    """
    def __init__(self, path: str, bootstrap_hash: str | None = None) -> None:
        self._path = path
        self._bootstrap_hash = bootstrap_hash or ""
        self._cached: list[User] | None = None
        self._snapshot: tuple[tuple[str, int, int], ...] | None = None
        self._lock = threading.Lock()
    @property
    def path(self) -> str:
        return self._path
    @property
    def all(self) -> list[User]:
        snapshot = self._build_snapshot()
        if self._cached is not None and self._snapshot is not None and snapshot == self._snapshot:
            return list(self._cached)
        self._snapshot = snapshot
        if os.path.isfile(self._path):
            self._cached = self._read_file()
        elif self._bootstrap_hash:
            self._cached = [User("admin", self._bootstrap_hash, "admin")]
        else:
            self._cached = []
        return list(self._cached)
    @property
    def any(self) -> bool:
        return len(self.all) > 0
    def find(self, username: str) -> User | None:
        for u in self.all:
            if u.username == username:
                return u
        return None
    def authenticate(self, username: str, password: str) -> User | None:
        user = self.find(username)
        if user and _verify_pw(password, user.password_hash):
            return user
        return None
    def add(self, username: str, password: str, role: str = DEFAULT_ROLE) -> User | None:
        with self._lock:
            if not username or self.find(username):
                return None
            role = role if role in ROLES else DEFAULT_ROLE
            user = User(username, _hash_pw(password), role)
            self._persist([*self.all, user])
            return user
    def update_name(self, username: str, name: str | None) -> User | None:
        return self._mutate(username, lambda u: setattr(u, "name", name if name else None))
    def update_fediverse_creator(self, username: str, value: str | None) -> User | None:
        return self._mutate(
            username, lambda u: setattr(u, "fediverse_creator", value if value else None)
        )
    def update_photo(self, username: str, path: str | None) -> User | None:
        return self._mutate(username, lambda u: setattr(u, "photo", path))
    def update_password(self, username: str, password: str) -> User | None:
        return self._mutate(username, lambda u: setattr(u, "password_hash", _hash_pw(password)))
    def rename(self, current_name: str, new_name: str) -> User | None:
        if not new_name or self.find(new_name):
            return None
        return self._mutate(current_name, lambda u: setattr(u, "username", new_name))
    def set_role(self, username: str, role: str) -> User | None:
        if role not in ROLES:
            return None
        with self._lock:
            users = self.all
            user = next((u for u in users if u.username == username), None)
            if user is None:
                return None
            if user.role == "admin" and role != "admin" and self._admin_count(users) <= 1:
                return None
            user.role = role
            self._persist(users)
            return user
    def delete(self, username: str) -> str | None:
        with self._lock:
            users = self.all
            target = next((u for u in users if u.username == username), None)
            if target is None or len(users) <= 1:
                return None
            if target.role == "admin" and self._admin_count(users) <= 1:
                return None
            self._persist([u for u in users if u.username != username])
            return username
    def _mutate(self, username: str, func: Any) -> User | None:
        with self._lock:
            users = self.all
            user = next((u for u in users if u.username == username), None)
            if user is None:
                return None
            func(user)
            self._persist(users)
            return user
    def _admin_count(self, users: list[User]) -> int:
        return sum(1 for u in users if u.role == "admin")
    def _build_snapshot(self) -> tuple[tuple[str, int, int], ...]:
        """Return (path, mtime_ns, size) snapshot for the users file."""
        if not os.path.isfile(self._path):
            return ()
        try:
            st = os.stat(self._path)
        except OSError:
            return ()
        return ((self._path, st.st_mtime_ns, st.st_size),)
    def _read_file(self) -> list[User]:
        try:
            with open(self._path, "rb") as fh:
                data = tomllib.load(fh)
        except (OSError, tomllib.TOMLDecodeError) as exc:
            logger.warning("users: failed to read %s: %s", self._path, exc)
            return []
        result: list[User] = [
            User(
                username=entry["username"],
                password_hash=entry["password_hash"],
                role=entry.get("role", DEFAULT_ROLE),
                name=entry.get("name"),
                fediverse_creator=entry.get("fediverse_creator"),
                photo=entry.get("photo"),
            )
            for entry in data.get("users", [])
        ]
        # Log a warning when stored hashes are weak so admins see them.
        for u in result:
            if _needs_rehash(u.password_hash):
                logger.warning(
                    "users: stored hash for %s uses weak parameters; should be re-hashed",
                    u.username,
                )
        return result
    def _persist(self, users: list[User]) -> None:
        parent = os.path.dirname(self._path) or "."
        os.makedirs(parent, exist_ok=True)
        user_list: list[dict[str, Any]] = []
        for u in users:
            entry: dict[str, Any] = {
                "username": u.username,
                "password_hash": u.password_hash,
                "role": u.role,
            }
            if u.name:
                entry["name"] = u.name
            if u.fediverse_creator:
                entry["fediverse_creator"] = u.fediverse_creator
            if u.photo:
                entry["photo"] = u.photo
            user_list.append(entry)
        payload = tomli_w.dumps({"users": user_list}).encode("utf-8")
        fd, tmp_path = tempfile.mkstemp(prefix=".users-", suffix=".tmp", dir=parent)
        try:
            with os.fdopen(fd, "wb") as fh:
                fh.write(payload)
                fh.flush()
                os.fsync(fh.fileno())
            os.replace(tmp_path, self._path)
            os.chmod(self._path, 0o600)
            try:
                dir_fd = os.open(parent, os.O_DIRECTORY)
                try:
                    os.fsync(dir_fd)
                finally:
                    os.close(dir_fd)
            except OSError, AttributeError:
                pass
        except OSError, ValueError:
            # Best-effort cleanup of the tempfile if rename failed.
            with contextlib.suppress(OSError):
                os.remove(tmp_path)
            raise
        # Force cache re-read on next access.
        self._cached = None
        self._snapshot = None
@@ -0,0 +1,18 @@
 """Canonical volumen version (read from package metadata)."""
 from __future__ import annotations
 from importlib import metadata
 __all__ = ["VERSION", "version"]
 def version() -> str:
    """Return the installed volumen version (from package metadata)."""
    try:
        return metadata.version("volumen")
    except metadata.PackageNotFoundError:
        return "0.0.0"
 VERSION: str = version()
@@ -0,0 +1,159 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" role="img" aria-label="volumen">
  <title>volumen</title>
  <defs>
    <!-- Background gradient: deep night sky -->
    <radialGradient id="bg" cx="50%" cy="35%" r="80%">
      <stop offset="0%" stop-color="#4a5bd8"/>
      <stop offset="55%" stop-color="#2a2d6e"/>
      <stop offset="100%" stop-color="#15163a"/>
    </radialGradient>
    <!-- Subtle inner ring gradient -->
    <linearGradient id="ring" x1="0%" y1="0%" x2="0%" y2="100%">
      <stop offset="0%" stop-color="#8aa0ff" stop-opacity="0.9"/>
      <stop offset="100%" stop-color="#3b3f8a" stop-opacity="0.6"/>
    </linearGradient>
    <!-- Glossy highlight at the top -->
    <radialGradient id="gloss" cx="50%" cy="15%" r="55%">
      <stop offset="0%" stop-color="#ffffff" stop-opacity="0.35"/>
      <stop offset="60%" stop-color="#ffffff" stop-opacity="0.05"/>
      <stop offset="100%" stop-color="#ffffff" stop-opacity="0"/>
    </radialGradient>
    <!-- Wave stroke gradient -->
    <linearGradient id="wave" x1="0%" y1="0%" x2="100%" y2="0%">
      <stop offset="0%" stop-color="#7afcff" stop-opacity="0.15"/>
      <stop offset="50%" stop-color="#7afcff" stop-opacity="0.95"/>
      <stop offset="100%" stop-color="#7afcff" stop-opacity="0.15"/>
    </linearGradient>
    <linearGradient id="waveDim" x1="0%" y1="0%" x2="100%" y2="0%">
      <stop offset="0%" stop-color="#ffffff" stop-opacity="0.05"/>
      <stop offset="50%" stop-color="#ffffff" stop-opacity="0.35"/>
      <stop offset="100%" stop-color="#ffffff" stop-opacity="0.05"/>
    </linearGradient>
    <!-- Central V fill gradient -->
    <linearGradient id="vFill" x1="0%" y1="0%" x2="0%" y2="100%">
      <stop offset="0%" stop-color="#fdfdff"/>
      <stop offset="100%" stop-color="#b8c4ff"/>
    </linearGradient>
    <!-- Soft drop shadow -->
    <filter id="softShadow" x="-20%" y="-20%" width="140%" height="140%">
      <feGaussianBlur in="SourceAlpha" stdDeviation="2"/>
      <feOffset dx="0" dy="2" result="off"/>
      <feComponentTransfer>
        <feFuncA type="linear" slope="0.5"/>
      </feComponentTransfer>
      <feMerge>
        <feMergeNode/>
        <feMergeNode in="SourceGraphic"/>
      </feMerge>
    </filter>
    <!-- Outer glow for the disc -->
    <filter id="outerGlow" x="-30%" y="-30%" width="160%" height="160%">
      <feGaussianBlur stdDeviation="4"/>
    </filter>
    <!-- Reusable wave path (sinusoidal, centered around y=128) -->
    <path id="wavePath"
      d="M 36 128
         C 56 96, 76 96, 96 128
         S 136 160, 156 128
         S 196 96, 216 128"
      fill="none"/>
  </defs>
  <!-- ===== Outer glow halo ===== -->
  <circle cx="128" cy="128" r="116" fill="url(#bg)" opacity="0.55" filter="url(#outerGlow)"/>
  <!-- ===== Main disc ===== -->
  <circle cx="128" cy="128" r="112" fill="url(#bg)"/>
  <!-- Inner decorative ring -->
  <circle cx="128" cy="128" r="104" fill="none" stroke="url(#ring)" stroke-width="1.2" opacity="0.7"/>
  <!-- Dotted ring (tick marks) -->
  <g fill="#8aa0ff" opacity="0.55">
    <circle cx="128" cy="22"  r="1.4"/>
    <circle cx="180" cy="32"  r="1.2"/>
    <circle cx="220" cy="62"  r="1.4"/>
    <circle cx="234" cy="110" r="1.2"/>
    <circle cx="234" cy="146" r="1.4"/>
    <circle cx="220" cy="194" r="1.2"/>
    <circle cx="180" cy="224" r="1.4"/>
    <circle cx="128" cy="234" r="1.2"/>
    <circle cx="76"  cy="224" r="1.4"/>
    <circle cx="36"  cy="194" r="1.2"/>
    <circle cx="22"  cy="146" r="1.4"/>
    <circle cx="22"  cy="110" r="1.2"/>
    <circle cx="36"  cy="62"  r="1.4"/>
    <circle cx="76"  cy="32"  r="1.2"/>
  </g>
  <!-- ===== Waves (background layer) ===== -->
  <g stroke-linecap="round" fill="none">
    <use href="#wavePath" stroke="url(#waveDim)" stroke-width="1.2"
         transform="translate(0,-46)" opacity="0.6"/>
    <use href="#wavePath" stroke="url(#waveDim)" stroke-width="1.2"
         transform="translate(0,46)" opacity="0.6"/>
  </g>
  <!-- ===== Central stylized "V" ===== -->
  <g filter="url(#softShadow)">
    <!-- Main V shape, geometric, with a small notch at the bottom for a leaf/quill hint -->
    <path d="
      M 78 70
      L 110 70
      L 128 142
      L 146 70
      L 178 70
      L 138 186
      L 118 186
      Z"
      fill="url(#vFill)"/>
    <!-- Inner accent line on the V -->
    <path d="M 118 186 L 128 142 L 138 186"
      fill="none" stroke="#2a2d6e" stroke-width="1.2" stroke-linejoin="round" opacity="0.35"/>
    <!-- Subtle highlight stripe on the left arm of V -->
    <path d="M 82 74 L 108 74 L 100 100 Z"
      fill="#ffffff" opacity="0.25"/>
  </g>
  <!-- ===== Foreground waves crossing the V ===== -->
  <g stroke-linecap="round" fill="none">
    <use href="#wavePath" stroke="url(#wave)" stroke-width="3.2" opacity="0.9"/>
    <use href="#wavePath" stroke="url(#wave)" stroke-width="1.6"
         transform="translate(0,18)" opacity="0.7"/>
    <use href="#wavePath" stroke="url(#wave)" stroke-width="1.6"
         transform="translate(0,-18)" opacity="0.7"/>
  </g>
  <!-- ===== Sparkles / dots ===== -->
  <g fill="#ffffff">
    <circle cx="60"  cy="92"  r="1.8" opacity="0.95"/>
    <circle cx="196" cy="92"  r="1.6" opacity="0.85"/>
    <circle cx="200" cy="168" r="1.4" opacity="0.8"/>
    <circle cx="58"  cy="172" r="1.4" opacity="0.8"/>
    <circle cx="156" cy="58"  r="1.2" opacity="0.7"/>
    <circle cx="100" cy="206" r="1.2" opacity="0.7"/>
  </g>
  <!-- Four-point sparkle (north star) -->
  <g transform="translate(70,70)" fill="#ffffff" opacity="0.9">
    <path d="M 0 -7 L 1.4 -1.4 L 7 0 L 1.4 1.4 L 0 7 L -1.4 1.4 L -7 0 L -1.4 -1.4 Z"/>
  </g>
  <g transform="translate(190,190) scale(0.7)" fill="#ffffff" opacity="0.8">
    <path d="M 0 -7 L 1.4 -1.4 L 7 0 L 1.4 1.4 L 0 7 L -1.4 1.4 L -7 0 L -1.4 -1.4 Z"/>
  </g>
  <!-- ===== Glossy top highlight ===== -->
  <circle cx="128" cy="128" r="112" fill="url(#gloss)"/>
 </svg>
@@ -0,0 +1,612 @@
 {% extends "layout.html.jinja" %}
 {% block content %}
 {% if mode == "new" %}
  {% set crumbs = [("Posts", "/admin/"), ("New post", None)] %}
 {% else %}
  {% set crumbs = [("Posts", "/admin/"), (post.title | string | trim if post.title | string | trim | length > 0 else "Untitled", None)] %}
 {% endif %}
 <div class="page-head">
  <div>
    <h1>{{ "New post" if mode == "new" else "Edit post" }}</h1>
    <p class="lede">{{ "Draft a new article in Markdown." if mode == "new" else "Update and publish this post." }}</p>
  </div>
  <div style="display: flex; gap: 0.5rem;">
    {% if mode == "edit" %}
      <a class="btn btn-ghost" href="/api/volumen/posts/{{ post.slug }}" target="_blank">
        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" style="width: 14px; height: 14px;"><path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"/><polyline points="15 3 21 3 21 9"/><line x1="10" y1="14" x2="21" y2="3"/></svg>
        Preview
      </a>
    {% endif %}
    <a class="btn btn-ghost" href="/admin/">Cancel</a>
    <button type="submit" form="post-form" class="btn btn-primary">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" style="width: 14px; height: 14px;"><path d="M19 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11l5 5v11a2 2 0 0 1-2 2z"/><polyline points="17 21 17 13 7 13 7 21"/><polyline points="7 3 7 8 15 8"/></svg>
      Save
    </button>
  </div>
 </div>
 {% if error %}
  <div class="alert alert-error">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="12" y1="8" x2="12" y2="12"/><line x1="12" y1="16" x2="12.01" y2="16"/></svg>
    <div>{{ error }}</div>
  </div>
 {% endif %}
 <form id="post-form" method="post"
      action="{{ '/admin/posts' if mode == 'new' else '/admin/posts/' + post.slug }}">
  <input type="hidden" name="_csrf" value="{{ csrf_token }}">
  <div class="form-grid">
    <div class="surface full">
      <div class="surface-head">
        <div>
          <h2>Details</h2>
          <p class="lede">Title, slug, and publishing options</p>
        </div>
      </div>
      <div class="field full">
        <label for="title">Title</label>
        <input id="title" class="input" type="text" name="title" value="{{ post.title if post.title else '' }}" placeholder="A clear, descriptive title" required>
      </div>
      <div class="field-row">
        <div class="field">
          <label for="slug">Slug</label>
          <input id="slug" class="input" type="text" name="slug" value="{{ post.slug if post.slug else '' }}"
                 {{ 'readonly' if mode == 'edit' else 'required' }} placeholder="my-post-slug">
        </div>
        <div class="field">
          <label for="lang">Language</label>
          <input id="lang" class="input" type="text" name="lang" value="{{ post.lang if post.lang else '' }}" placeholder="en">
        </div>
      </div>
      <div class="field-row">
        {% set author_value = post.author if post.author and post.author | string | trim | length > 0 else (current_user_record.name if current_user_record else current_user) %}
        <div class="field">
          <label for="author">Author</label>
          <input id="author" class="input" type="text" name="author" value="{{ author_value if author_value else '' }}" placeholder="{{ current_user_record.name if current_user_record else 'Petr Balvín' }}">
        </div>
        {% set fediverse_default = current_user_record.fediverse_creator if current_user_record and current_user_record.fediverse_creator else config.site.fediverse_creator %}
        <div class="field">
          <label for="fediverse_creator">Fediverse creator</label>
          <input id="fediverse_creator" class="input" type="text" name="fediverse_creator"
                 value="{{ post.fediverse_creator if post.fediverse_creator and post.fediverse_creator | string | trim | length > 0 else fediverse_default }}" placeholder="@user@instance.tld">
        </div>
      </div>
      <div class="field-row-3">
        <div class="field">
          <label for="date">Publish date</label>
          <input id="date" class="input" type="date" name="date" value="{{ post.date_string if post.date_string else today_date }}">
        </div>
        <div class="field">
          <label for="publish_at">Schedule for</label>
          <input id="publish_at" class="input" type="date" name="publish_at"
                 value="{{ post.publish_at.strftime('%Y-%m-%d') if post.publish_at else '' }}">
          <p class="help">Leave empty to publish immediately</p>
        </div>
        <div class="field">
          <label for="tags">Tags</label>
          <input id="tags" class="input" type="text" name="tags" value="{{ post.tags | join(', ') }}" placeholder="comma, separated">
        </div>
      </div>
      <div class="field full">
        <label for="excerpt">Excerpt</label>
        <input id="excerpt" class="input" type="text" name="excerpt" value="{{ post.excerpt if post.excerpt else '' }}" placeholder="Short summary for listings and previews">
        <p class="help">Auto-generated from the first paragraph if left empty</p>
      </div>
      <div style="display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 0.5rem;">
        <label class="checkbox">
          <input type="checkbox" name="draft" {{ 'checked' if post.draft else '' }}> Draft
        </label>
        <label class="checkbox">
          <input type="checkbox" name="all_langs" {{ 'checked' if post.all_langs else '' }}> Available in all languages
        </label>
      </div>
    </div>
    <div class="surface full">
      <div class="surface-head">
        <div>
          <h2>Cover image</h2>
          <p class="lede">Header image shown on the article page</p>
        </div>
      </div>
      <div class="cover-field">
        <div class="cover-input-row">
          <input id="cover-input" class="input" type="text" name="cover" value="{{ post.cover if post.cover else '' }}"
                 placeholder="/media/… or https://…">
          <button type="button" id="cover-upload" class="btn">Upload</button>
          <button type="button" id="cover-clear" class="btn btn-ghost">Clear</button>
        </div>
        <input id="cover-alt-input" class="input" type="text" name="cover_alt" value="{{ post.cover_alt if post.cover_alt else '' }}"
               placeholder="ALT text (for accessibility)">
        <input id="cover-caption-input" class="input" type="text" name="cover_caption" value="{{ post.cover_caption if post.cover_caption else '' }}"
               placeholder="Caption (e.g. 'Generated by AI')">
        <img id="cover-preview" class="cover-preview" alt="" hidden>
        <input type="file" id="cover-file" accept="image/webp,image/avif" hidden>
      </div>
    </div>
    <div class="surface full">
      <div class="editor-tabs" style="margin-bottom: 0.75rem;">
        <button type="button" data-tab="markdown" class="active">Markdown</button>
        <button type="button" data-tab="visual">Visual</button>
      </div>
      <div id="visual-view" hidden>
        <div class="editor-grid">
          <div class="editor-pane">
            <div class="editor-head">
              <span class="label">Editor</span>
              <span class="spacer"></span>
              <button type="button" class="editor-toolbar-btn bold" data-rich="bold" title="Bold (Ctrl+B)">B</button>
              <button type="button" class="editor-toolbar-btn italic" data-rich="italic" title="Italic (Ctrl+I)">I</button>
              <button type="button" class="editor-toolbar-btn" data-rich="h2" title="Heading 2">H2</button>
              <button type="button" class="editor-toolbar-btn" data-rich="h3" title="Heading 3">H3</button>
              <button type="button" class="editor-toolbar-btn" data-rich="link" title="Link (Ctrl+K)">⌘</button>
              <button type="button" class="editor-toolbar-btn" data-rich="ul" title="Bullet list">•</button>
              <button type="button" class="editor-toolbar-btn" data-rich="ol" title="Numbered list">1.</button>
              <button type="button" class="editor-toolbar-btn" data-rich="quote" title="Quote">"</button>
              <button type="button" class="editor-toolbar-btn" data-rich="code" title="Code">/&gt;</button>
              <button type="button" class="editor-toolbar-btn" data-rich="image" title="Image">IMG</button>
            </div>
            <div id="wysiwyg" class="markdown editor-preview" contenteditable="true"></div>
          </div>
        </div>
      </div>
      <div id="markdown-view">
        <div class="editor-grid" id="editor-grid">
          <div class="editor-pane">
            <div class="editor-head">
              <span class="label">Markdown</span>
              <span class="spacer"></span>
              <button type="button" class="editor-toolbar-btn bold" data-md="bold" title="Bold (Ctrl+B)">B</button>
              <button type="button" class="editor-toolbar-btn italic" data-md="italic" title="Italic (Ctrl+I)">I</button>
              <button type="button" class="editor-toolbar-btn" data-md="h2" title="Heading">H2</button>
              <button type="button" class="editor-toolbar-btn" data-md="link" title="Link (Ctrl+K)">↗</button>
              <button type="button" class="editor-toolbar-btn" data-md="ul" title="List">•</button>
              <button type="button" class="editor-toolbar-btn" data-md="quote" title="Quote">"</button>
              <button type="button" class="editor-toolbar-btn" data-md="code" title="Code">&lt;/&gt;</button>
              <button type="button" class="editor-toolbar-btn" data-md="image" title="Image">IMG</button>
              <button type="button" id="toggle-preview" class="editor-toolbar-btn" title="Toggle preview">PREVIEW</button>
            </div>
            <textarea id="body" name="body" class="editor-textarea" rows="22" placeholder="Write your post in Markdown…">{{ post.body if post.body else '' }}</textarea>
          </div>
          <div class="editor-pane" id="preview-pane">
            <div class="editor-head">
              <span class="label">Preview</span>
            </div>
            <div id="preview" class="markdown editor-preview"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <input type="file" id="image-input" accept="image/webp,image/avif" hidden>
 </form>
 <script nonce="{{ csp_nonce | default('') }}">
  (function () {
    var form = document.getElementById("post-form");
    var textarea = document.getElementById("body");
    var preview = document.getElementById("preview");
    var wysiwyg = document.getElementById("wysiwyg");
    var visualView = document.getElementById("visual-view");
    var markdownView = document.getElementById("markdown-view");
    var imageInput = document.getElementById("image-input");
    var coverInput = document.getElementById("cover-input");
    var coverFile = document.getElementById("cover-file");
    var coverPreview = document.getElementById("cover-preview");
    var previewUrl = "/admin/preview";
    var uploadUrl = "/admin/uploads";
    var csrf = "{{ csrf_token }}";
    var timer = null;
    try { document.execCommand("defaultParagraphSeparator", false, "p"); } catch (e) {}
    // --- Markdown <-> HTML -------------------------------------------------
    function mdToHtml(md) {
      var data = new URLSearchParams();
      data.set("body", md);
      data.set("_csrf", csrf);
      return fetch(previewUrl, {
        method: "POST",
        headers: { "Content-Type": "application/x-www-form-urlencoded" },
        body: data.toString()
      }).then(function (response) { return response.text(); });
    }
    function inlineToMd(node) {
      var out = "";
      node.childNodes.forEach(function (child) { out += inlineNode(child); });
      return out;
    }
    function inlineNode(node) {
      if (node.nodeType === 3) { return node.nodeValue.replace(/\s+/g, " "); }
      if (node.nodeType !== 1) { return ""; }
      var tag = node.tagName.toLowerCase();
      var inner = inlineToMd(node);
      if (tag === "strong" || tag === "b") { return "**" + inner.trim() + "**"; }
      if (tag === "em" || tag === "i") { return "*" + inner.trim() + "*"; }
      if (tag === "code") { return "`" + node.textContent + "`"; }
      if (tag === "a") { return "[" + inner + "](" + (node.getAttribute("href") || "") + ")"; }
      if (tag === "img") {
        var title = node.getAttribute("title") || "";
        var imgMd = "![" + (node.getAttribute("alt") || "") + "](" + (node.getAttribute("src") || "") + ")";
        if (title) { imgMd = imgMd.replace(")", ' "' + title + '")'); }
        return imgMd;
      }
      if (tag === "br") { return "\n"; }
      return inner;
    }
    function listToMd(list, ordered) {
      var index = 1;
      var items = [];
      list.childNodes.forEach(function (li) {
        if (li.nodeType === 1 && li.tagName.toLowerCase() === "li") {
          var marker = ordered ? (index++ + ". ") : "- ";
          items.push(marker + inlineToMd(li).trim());
        }
      });
      return items.join("\n");
    }
    function htmlToMd(root) {
      var blocks = [];
      root.childNodes.forEach(function (node) {
        if (node.nodeType === 3) {
          var text = node.nodeValue.trim();
          if (text) { blocks.push(text); }
          return;
        }
        if (node.nodeType !== 1) { return; }
        var tag = node.tagName.toLowerCase();
        if (/^h[1-6]$/.test(tag)) {
          blocks.push("#".repeat(Number(tag.charAt(1))) + " " + inlineToMd(node).trim());
        } else if (tag === "ul" || tag === "ol") {
          blocks.push(listToMd(node, tag === "ol"));
        } else if (tag === "blockquote") {
          blocks.push(inlineToMd(node).trim().split("\n").map(function (line) {
            return "> " + line;
          }).join("\n"));
        } else if (tag === "pre") {
          blocks.push("```\n" + node.textContent.replace(/\n$/, "") + "\n```");
        } else if (tag === "hr") {
          blocks.push("---");
        } else {
          var content = inlineToMd(node).trim();
          if (content) { blocks.push(content); }
        }
      });
      return blocks.join("\n\n").replace(/\n{3,}/g, "\n\n").trim() + "\n";
    }
    // --- Live preview (markdown mode) — disabled by default ----------------
        function setSafeHtml(target, html) {
          // Replace ``innerHTML`` with a parse-and-replace strategy so that
          // any unexpected <script> blocks won't execute. We assume the
          // server already strips dangerous content (see nh3 sanitisation
          // in the preview endpoint), but the DOMParser-based update adds
          // defence in depth: <script> elements inserted into the parsed
          // document are not executed when appended via Node.replaceChild.
          while (target.firstChild) {
            target.removeChild(target.firstChild);
          }
          var parser = new DOMParser();
          var doc = parser.parseFromString("<div>" + html + "</div>", "text/html");
          var source = doc.body.firstChild;
          if (!source) { return; }
          // Import each child individually so any inline scripts are not
          // marked as already-started (and thus do not execute).
          while (source.firstChild) {
            target.appendChild(document.importNode(source.firstChild, true));
          }
        }
        function renderPreview() {
          mdToHtml(textarea.value).then(function (html) { setSafeHtml(preview, html); });
        }
    function schedule() {
      clearTimeout(timer);
      timer = setTimeout(renderPreview, 250);
    }
    // --- Image upload ------------------------------------------------------
    function uploadImage(file, onSuccess, onError) {
      var data = new FormData();
      data.append("file", file);
      data.append("_csrf", csrf);
      fetch(uploadUrl, { method: "POST", body: data })
        .then(function (response) {
          return response.json().then(function (json) { return { ok: response.ok, json: json }; });
        })
        .then(function (result) {
          if (result.ok && result.json.url) {
            onSuccess(result.json.url);
          } else {
            onError(result.json.message || ("Upload failed (HTTP " + (result.json.error || "error") + ")"));
          }
        });
    }
    function showUploadError(message) {
      alert("Upload failed:\n\n" + message);
    }
    imageInput.addEventListener("change", function () {
      var file = imageInput.files[0];
      if (!file) { return; }
      uploadImage(file, function (url) {
        if (visualView.hidden) {
          insertIntoTextarea("![](" + url + ")");
        } else {
          exec("insertImage", url);
        }
      }, showUploadError);
      imageInput.value = "";
    });
    // --- Cover image -------------------------------------------------------
    function refreshCoverPreview() {
      if (coverInput.value) {
        coverPreview.src = coverInput.value;
        coverPreview.hidden = false;
      } else {
        coverPreview.hidden = true;
        coverPreview.removeAttribute("src");
      }
    }
    document.getElementById("cover-upload").addEventListener("click", function () {
      coverFile.click();
    });
    document.getElementById("cover-clear").addEventListener("click", function () {
      coverInput.value = "";
      refreshCoverPreview();
    });
    coverFile.addEventListener("change", function () {
      var file = coverFile.files[0];
      if (!file) { return; }
      uploadImage(file, function (url) {
        coverInput.value = url;
        refreshCoverPreview();
      }, showUploadError);
      coverFile.value = "";
    });
    coverInput.addEventListener("input", refreshCoverPreview);
    refreshCoverPreview();
    // --- Markdown toolbar --------------------------------------------------
    function insertIntoTextarea(text) {
      var start = textarea.selectionStart;
      textarea.value = textarea.value.slice(0, start) + text + textarea.value.slice(textarea.selectionEnd);
      textarea.focus();
      textarea.selectionStart = textarea.selectionEnd = start + text.length;
      schedule();
    }
    function wrap(before, after) {
      var start = textarea.selectionStart;
      var end = textarea.selectionEnd;
      var selected = textarea.value.slice(start, end);
      textarea.value = textarea.value.slice(0, start) + before + selected + after +
        textarea.value.slice(end);
      textarea.focus();
      textarea.selectionStart = start + before.length;
      textarea.selectionEnd = end + before.length;
      schedule();
    }
    function linePrefix(prefix) {
      var start = textarea.selectionStart;
      var lineStart = textarea.value.lastIndexOf("\n", start - 1) + 1;
      textarea.value = textarea.value.slice(0, lineStart) + prefix + textarea.value.slice(lineStart);
      textarea.focus();
      schedule();
    }
    var mdActions = {
      bold: function () { wrap("**", "**"); },
      italic: function () { wrap("*", "*"); },
      code: function () { wrap("`", "`"); },
      link: function () { wrap("[", "](https://)"); },
      h2: function () { linePrefix("## "); },
      ul: function () { linePrefix("- "); },
      quote: function () { linePrefix("> "); },
      image: function () { imageInput.click(); }
    };
    // --- Visual toolbar ----------------------------------------------------
    function exec(command, value) {
      document.execCommand(command, false, value || null);
      wysiwyg.focus();
      updateToolbarState();
    }
    function wrapInline(tagName) {
      var selection = window.getSelection();
      if (!selection.rangeCount) { return; }
      var element = document.createElement(tagName);
      try { selection.getRangeAt(0).surroundContents(element); } catch (e) { /* spans blocks */ }
      wysiwyg.focus();
      updateToolbarState();
    }
    var richActions = {
      bold: function () { exec("bold"); },
      italic: function () { exec("italic"); },
      h2: function () { exec("formatBlock", "H2"); },
      h3: function () { exec("formatBlock", "H3"); },
      quote: function () { exec("formatBlock", "BLOCKQUOTE"); },
      clear: function () { exec("formatBlock", "P"); },
      ul: function () { exec("insertUnorderedList"); },
      ol: function () { exec("insertOrderedList"); },
      code: function () { wrapInline("code"); },
      image: function () { imageInput.click(); },
      link: function () { var url = prompt("Link URL", "https://"); if (url) { exec("createLink", url); } }
    };
    // --- Toolbar active state ----------------------------------------------
    function queryState(command) {
      try { return document.queryCommandState(command); } catch (e) { return false; }
    }
    function currentBlock() {
      try { return (document.queryCommandValue("formatBlock") || "").toLowerCase().replace(/[<>]/g, ""); }
      catch (e) { return ""; }
    }
    function selectionInEditor() {
      var node = window.getSelection().anchorNode;
      while (node) { if (node === wysiwyg) { return true; } node = node.parentNode; }
      return false;
    }
    function isInside(tagName) {
      var node = window.getSelection().anchorNode;
      while (node && node !== wysiwyg) {
        if (node.nodeType === 1 && node.tagName.toLowerCase() === tagName) { return true; }
        node = node.parentNode;
      }
      return false;
    }
    function updateToolbarState() {
      if (visualView.hidden) { return; }
      var active = {};
      if (selectionInEditor()) {
        var block = currentBlock();
        active = {
          bold: queryState("bold"),
          italic: queryState("italic"),
          ul: queryState("insertUnorderedList"),
          ol: queryState("insertOrderedList"),
          h2: block === "h2",
          h3: block === "h3",
          quote: block === "blockquote",
          link: isInside("a"),
          code: isInside("code")
        };
      }
      document.querySelectorAll("[data-rich]").forEach(function (button) {
        button.classList.toggle("active", !!active[button.dataset.rich]);
      });
    }
    // --- Mode switching ----------------------------------------------------
    function setActiveTab(name) {
      document.querySelectorAll(".editor-tabs button").forEach(function (button) {
        button.classList.toggle("active", button.dataset.tab === name);
      });
    }
    function showVisual() {
          mdToHtml(textarea.value).then(function (html) { setSafeHtml(wysiwyg, html); });
          visualView.hidden = false;
          markdownView.hidden = true;
          setActiveTab("visual");
        }
    function showMarkdown() {
      textarea.value = htmlToMd(wysiwyg);
      renderPreview();
      visualView.hidden = true;
      markdownView.hidden = false;
      setActiveTab("markdown");
    }
    // --- Keyboard shortcuts ------------------------------------------------
    function shortcut(actions) {
      return function (event) {
        if (!(event.ctrlKey || event.metaKey)) { return; }
        var key = event.key.toLowerCase();
        if (key === "b") { event.preventDefault(); actions.bold(); }
        else if (key === "i") { event.preventDefault(); actions.italic(); }
        else if (key === "k") { event.preventDefault(); actions.link(); }
      };
    }
    // --- Wiring ------------------------------------------------------------
    document.querySelectorAll("[data-md]").forEach(function (button) {
      button.addEventListener("click", function () { mdActions[button.dataset.md](); });
    });
    document.querySelectorAll("[data-rich]").forEach(function (button) {
      button.addEventListener("click", function () { richActions[button.dataset.rich](); });
    });
    document.querySelectorAll(".editor-tabs button").forEach(function (button) {
      button.addEventListener("click", function () {
        if (button.dataset.tab === "visual") { showVisual(); } else { showMarkdown(); }
      });
    });
    wysiwyg.addEventListener("paste", function (event) {
      event.preventDefault();
      var text = (event.clipboardData || window.clipboardData).getData("text/plain");
      document.execCommand("insertText", false, text);
    });
    wysiwyg.addEventListener("keydown", shortcut(richActions));
    wysiwyg.addEventListener("keyup", updateToolbarState);
    wysiwyg.addEventListener("mouseup", updateToolbarState);
    document.addEventListener("selectionchange", updateToolbarState);
    textarea.addEventListener("input", schedule);
    textarea.addEventListener("keydown", shortcut(mdActions));
    form.addEventListener("submit", function () {
      if (!visualView.hidden) { textarea.value = htmlToMd(wysiwyg); }
    });
    // --- Preview toggle (disabled by default) ------------------------------
    var editorGrid = document.getElementById("editor-grid");
    var previewPane = document.getElementById("preview-pane");
    var togglePreviewBtn = document.getElementById("toggle-preview");
    function applyPreviewPreference() {
      var on = false;
      try { on = localStorage.getItem("volumen.preview") === "on"; } catch (e) {}
      if (on) {
        editorGrid.classList.add("with-preview");
        previewPane.hidden = false;
        togglePreviewBtn.classList.add("active");
        renderPreview();
      } else {
        editorGrid.classList.remove("with-preview");
        previewPane.hidden = true;
        togglePreviewBtn.classList.remove("active");
      }
    }
    togglePreviewBtn.addEventListener("click", function () {
      var turningOn = !editorGrid.classList.contains("with-preview");
      try { localStorage.setItem("volumen.preview", turningOn ? "on" : "off"); } catch (e) {}
      applyPreviewPreference();
    });
    // Start in Markdown mode (primary), preview OFF by default.
    applyPreviewPreference();
  })();
 </script>
 {% endblock %}
@@ -0,0 +1,115 @@
 {% extends "layout.html.jinja" %}
 {% block content %}
 <div class="page-head">
  <div>
    <h1>Posts</h1>
    <p class="lede">{{ posts|length }} post{{ '' if posts|length == 1 else 's' }} in total</p>
  </div>
  <a class="btn btn-primary" href="/admin/posts/new">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
    New post
  </a>
 </div>
 <div class="toolbar">
  <div class="search">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>
    <input id="post-search" class="input" type="text" placeholder="Search posts...">
  </div>
  <div class="filters" id="post-filters">
    <button type="button" class="filter-chip active" data-filter="all">All</button>
    <button type="button" class="filter-chip" data-filter="published">Published</button>
    <button type="button" class="filter-chip" data-filter="draft">Drafts</button>
    <button type="button" class="filter-chip" data-filter="scheduled">Scheduled</button>
  </div>
 </div>
 {% if not posts %}
  <div class="empty">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>
    <h3>No posts yet</h3>
    <p>Create your first post to get started.</p>
    <a class="btn btn-primary" href="/admin/posts/new" style="margin-top: 0.75rem;">Create post</a>
  </div>
 {% else %}
  <div class="post-grid" id="post-grid">
    {% for post in posts %}
      {% if post.draft %}
        {% set status = "draft" %}
      {% elif post.scheduled %}
        {% set status = "scheduled" %}
      {% else %}
        {% set status = "published" %}
      {% endif %}
      <a href="/admin/posts/{{ post.slug }}/edit"
         class="post-card"
         data-title="{{ post.title | default('') | lower }}"
         data-slug="{{ post.slug }}"
         data-status="{{ status }}">
        {% if post.cover %}
          <div class="post-cover" style="background-image: url('{{ post.cover }}');"></div>
        {% else %}
          <div class="post-cover placeholder">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="2"/><circle cx="8.5" cy="8.5" r="1.5"/><polyline points="21 15 16 10 5 21"/></svg>
          </div>
        {% endif %}
        <div class="post-body">
          <h3 class="post-title">{{ post.title }}</h3>
          {% if post.excerpt and post.excerpt | string | trim | length > 0 %}
            <p class="post-excerpt">{{ post.excerpt }}</p>
          {% endif %}
          <div class="post-meta">
            <span class="badge badge-lang">{{ post.lang }}</span>
            {% if post.draft %}<span class="badge badge-warn">Draft</span>{% endif %}
            {% if post.scheduled %}<span class="badge badge-accent">Scheduled</span>{% endif %}
            {% if post.date_string %}<span>{{ post.date_string }}</span>{% endif %}
          </div>
        </div>
        <div class="post-actions">
          <span class="btn btn-sm btn-ghost" style="cursor: default;">Edit</span>
          <span class="spacer" style="flex: 1;"></span>
          <form method="post" action="/admin/posts/{{ post.slug }}/delete"
                onsubmit="return confirm('Delete this post?');" style="margin: 0;">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <button type="submit" class="btn btn-sm btn-ghost" style="color: var(--danger);" onclick="event.preventDefault(); event.stopPropagation(); this.closest('form').submit();">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="3 6 5 6 21 6"/><path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/></svg>
            </button>
          </form>
        </div>
      </a>
    {% endfor %}
  </div>
 {% endif %}
 <script>
  (function () {
    var search = document.getElementById("post-search");
    var filterButtons = document.querySelectorAll("#post-filters .filter-chip");
    var cards = document.querySelectorAll("#post-grid .post-card");
    var currentFilter = "all";
    function applyFilters() {
      var q = (search.value || "").toLowerCase().trim();
      cards.forEach(function (card) {
        var title = card.dataset.title;
        var slug = card.dataset.slug;
        var status = card.dataset.status;
        var matchesSearch = !q || title.indexOf(q) !== -1 || slug.indexOf(q) !== -1;
        var matchesFilter = currentFilter === "all" || status === currentFilter;
        card.style.display = matchesSearch && matchesFilter ? "" : "none";
      });
    }
    if (search) search.addEventListener("input", applyFilters);
    filterButtons.forEach(function (btn) {
      btn.addEventListener("click", function () {
        filterButtons.forEach(function (b) { b.classList.remove("active"); });
        btn.classList.add("active");
        currentFilter = btn.dataset.filter;
        applyFilters();
      });
    });
  })();
 </script>
 {% endblock %}
@@ -0,0 +1,33 @@
 {% extends "layout.html.jinja" %}
 {% block login_content %}
 <h2>Sign in</h2>
 <p class="lede">Welcome back. Sign in to manage your posts.</p>
 {% if error %}
  <div class="alert alert-error">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="12" y1="8" x2="12" y2="12"/><line x1="12" y1="16" x2="12.01" y2="16"/></svg>
    <div>{{ error }}</div>
  </div>
 {% endif %}
 {% if not users_exist %}
  <div class="alert alert-warn">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z"/><line x1="12" y1="9" x2="12" y2="13"/><line x1="12" y1="17" x2="12.01" y2="17"/></svg>
    <div>No users configured. Set <code>admin.password_hash</code> in your config or run <code>volumen hash-password</code>.</div>
  </div>
 {% endif %}
 <form method="post" action="/admin/login">
  <input type="hidden" name="_csrf" value="{{ csrf_token }}">
  <div class="field">
    <label for="username">Username</label>
    <input id="username" class="input" type="text" name="username" autofocus autocomplete="username" required>
  </div>
  <div class="field">
    <label for="password">Password</label>
    <input id="password" class="input" type="password" name="password" autocomplete="current-password" required>
  </div>
  <button type="submit" class="btn btn-primary">Sign in</button>
 </form>
 {% endblock %}
@@ -0,0 +1,250 @@
 {% extends "layout.html.jinja" %}
 {% block content %}
 <div class="page-head">
  <div>
    <h1>Settings</h1>
    <p class="lede">Manage your account and users</p>
  </div>
 </div>
 {% if notice %}
  <div class="alert alert-success">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>
    <div>{{ notice }}</div>
  </div>
 {% endif %}
 {% if error %}
  <div class="alert alert-error">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="12" y1="8" x2="12" y2="12"/><line x1="12" y1="16" x2="12.01" y2="16"/></svg>
    <div>{{ error }}</div>
  </div>
 {% endif %}
 <div class="settings-layout">
  <nav class="settings-nav" aria-label="Settings sections">
    <a href="#account" class="active">
      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"/><circle cx="12" cy="7" r="4"/></svg>
      Account
    </a>
    {% if current_role == "admin" %}
      <a href="#users">
        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"/><circle cx="9" cy="7" r="4"/><path d="M23 21v-2a4 4 0 0 0-3-3.87"/><path d="M16 3.13a4 4 0 0 1 0 7.75"/></svg>
        Users
      </a>
    {% endif %}
  </nav>
  <div class="settings-panels">
    <section id="account" class="surface">
      <div class="surface-head">
        <div>
          <h2>Account</h2>
          <p class="lede">Signed in as <strong style="color: var(--fg);">{{ current_user }}</strong> · {{ current_role }}</p>
        </div>
      </div>
      <div class="settings-section">
        <div class="settings-section-icon">
          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2"/><circle cx="12" cy="7" r="4"/><path d="M12 11v6"/><path d="M9 14h6"/></svg>
        </div>
        <div class="settings-section-body">
          <h3>Profile photo</h3>
          <p class="settings-section-desc">WebP or AVIF, max 10 MB. Shown in the sidebar.</p>
          <form method="post" action="/admin/settings/photo" enctype="multipart/form-data" class="settings-photo-form">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="photo-input-row">
              {% if current_user_record and current_user_record.photo %}
                <img src="{{ current_user_record.photo }}" alt="" class="photo-preview">
              {% else %}
                {% set initial_char = (current_user_record.name if current_user_record else current_user)[0] | upper if (current_user_record and current_user_record.name) or current_user else '?' %}
                <div class="photo-preview photo-preview-placeholder">{{ initial_char }}</div>
              {% endif %}
              <div class="photo-input-fields">
                <input type="file" name="photo" accept="image/webp,image/avif" required class="file-input">
                <div class="photo-buttons">
                  <button type="submit" class="btn btn-primary">Upload</button>
                  {% if current_user_record and current_user_record.photo %}
                    <button type="submit" form="remove-photo-form" class="btn btn-ghost btn-danger">Remove</button>
                  {% endif %}
                </div>
              </div>
            </div>
          </form>
          {% if current_user_record and current_user_record.photo %}
            <form id="remove-photo-form" method="post" action="/admin/settings/photo/remove" style="display: none;">
              <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            </form>
          {% endif %}
        </div>
      </div>
      <div class="settings-section">
        <div class="settings-section-icon">
          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4 7V4h16v3"/><path d="M9 20h6"/><path d="M12 4v16"/></svg>
        </div>
        <div class="settings-section-body">
          <h3>Identity</h3>
          <p class="settings-section-desc">Display name pre-fills the author field. Fediverse handle pre-fills the creator.</p>
          <form method="post" action="/admin/settings/name" class="settings-inline-form">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="field">
              <label for="name">Display name (real name)</label>
              <input id="name" class="input" type="text" name="name" value="{{ current_user_record.name if current_user_record else '' }}" placeholder="Your real name">
            </div>
            <button type="submit" class="btn">Save name</button>
          </form>
          <form method="post" action="/admin/settings/fediverse" class="settings-inline-form" style="margin-top: 1rem;">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="field">
              <label for="fediverse_creator">Fediverse handle</label>
              <input id="fediverse_creator" class="input" type="text" name="fediverse_creator" value="{{ current_user_record.fediverse_creator if current_user_record else '' }}" placeholder="@user@instance.tld">
            </div>
            <button type="submit" class="btn">Save handle</button>
          </form>
        </div>
      </div>
      <div class="settings-section">
        <div class="settings-section-icon">
          <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="11" width="18" height="11" rx="2" ry="2"/><path d="M7 11V7a5 5 0 0 1 10 0v4"/></svg>
        </div>
        <div class="settings-section-body">
          <h3>Security</h3>
          <p class="settings-section-desc">Change your password and username. You can also lock yourself out.</p>
          <form method="post" action="/admin/settings/password" class="settings-inline-form">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="field-row">
              <div class="field">
                <label for="current_password">Current password</label>
                <input id="current_password" class="input" type="password" name="current_password" autocomplete="current-password">
              </div>
              <div class="field">
                <label for="new_password">New password</label>
                <input id="new_password" class="input" type="password" name="new_password" autocomplete="new-password">
              </div>
            </div>
            <button type="submit" class="btn">Update password</button>
          </form>
          <form method="post" action="/admin/settings/username" class="settings-inline-form" style="margin-top: 1rem;">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="field">
              <label for="username">Username</label>
              <input id="username" class="input" type="text" name="username" value="{{ current_user }}">
            </div>
            <button type="submit" class="btn">Update username</button>
          </form>
        </div>
      </div>
    </section>
    {% if current_role == "admin" %}
      <section id="users" class="surface">
        <div class="surface-head">
          <div>
            <h2>Users</h2>
            <p class="lede">Add or remove admin and editor accounts</p>
          </div>
        </div>
        <div class="users-list">
          {% for user in users_list %}
            <div class="user-row">
              {% if user.photo %}
                <img src="{{ user.photo }}" alt="" class="user-avatar">
              {% else %}
                {% set user_initial = (user.name or user.username)[0] | upper %}
                <div class="user-avatar user-avatar-placeholder">{{ user_initial }}</div>
              {% endif %}
              <div class="user-info">
                <div class="user-name">
                  {{ user.name or user.username }}
                  {% if user.username == current_user %}<span class="badge badge-accent" style="margin-left: 0.4rem;">you</span>{% endif %}
                </div>
                <div class="user-username">@{{ user.username }}</div>
              </div>
              <div class="user-role">
                {% if user.username == current_user %}
                  <span class="badge badge-neutral">{{ user.role }}</span>
                {% else %}
                  <form method="post" action="/admin/settings/users/{{ user.username }}/role" style="margin: 0;">
                    <input type="hidden" name="_csrf" value="{{ csrf_token }}">
                    <select class="select select-sm" name="role" onchange="this.form.submit()">
                      {% for role in roles %}
                        <option value="{{ role }}" {{ 'selected' if user.role == role else '' }}>{{ role }}</option>
                      {% endfor %}
                    </select>
                  </form>
                {% endif %}
              </div>
              {% if user.username != current_user %}
                <form method="post" action="/admin/settings/users/{{ user.username }}/delete" onsubmit="return confirm('Remove this user?');" style="margin: 0;">
                  <input type="hidden" name="_csrf" value="{{ csrf_token }}">
                  <button type="submit" class="btn btn-sm btn-ghost btn-danger">Remove</button>
                </form>
              {% endif %}
            </div>
          {% endfor %}
        </div>
        <div class="add-user-form">
          <h3 style="margin: 0 0 0.75rem;">Add user</h3>
          <form method="post" action="/admin/settings/users">
            <input type="hidden" name="_csrf" value="{{ csrf_token }}">
            <div class="field-row-3">
              <div class="field">
                <label for="new-username">Username</label>
                <input id="new-username" class="input" type="text" name="username" placeholder="jane-doe">
              </div>
              <div class="field">
                <label for="new-password">Password</label>
                <input id="new-password" class="input" type="password" name="password" autocomplete="new-password">
              </div>
              <div class="field">
                <label for="new-role">Role</label>
                <select id="new-role" class="select" name="role">
                  {% for role in roles %}
                    <option value="{{ role }}" {{ 'selected' if role == default_role else '' }}>{{ role }}</option>
                  {% endfor %}
                </select>
              </div>
            </div>
            <button type="submit" class="btn btn-primary">Add user</button>
          </form>
        </div>
      </section>
    {% endif %}
  </div>
 </div>
 <script>
  (function () {
    var sections = document.querySelectorAll(".settings-panels .surface[id]");
    var navLinks = document.querySelectorAll(".settings-nav a[href^='#']");
    if (!sections.length || !navLinks.length) return;
    function showSection(id) {
      sections.forEach(function (s) {
        s.hidden = s.id !== id;
      });
      navLinks.forEach(function (a) {
        a.classList.toggle("active", a.getAttribute("href") === "#" + id);
      });
      try { history.replaceState(null, "", "#" + id); } catch (e) {}
      window.scrollTo({ top: 0, behavior: "smooth" });
    }
    navLinks.forEach(function (link) {
      link.addEventListener("click", function (event) {
        event.preventDefault();
        var id = link.getAttribute("href").slice(1);
        showSection(id);
      });
    });
    var initial = (window.location.hash || "").slice(1);
    var hasInitial = Array.from(sections).some(function (s) { return s.id === initial; });
    showSection(hasInitial ? initial : sections[0].id);
  })();
 </script>
 {% endblock %}
@@ -1,251 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 require "volumen/server"
 require "rack/test"
 require "tmpdir"
 require "fileutils"
 class AdminTest < Minitest::Test
  include Rack::Test::Methods
  def app
    Volumen::Server.configured(config: @config, store: @store)
  end
  def setup
    @dir = Dir.mktmpdir
    @posts_dir = File.join(@dir, "posts")
    FileUtils.mkdir_p(@posts_dir)
    @password = "secret"
    @hash = Volumen::Password.hash(@password)
    @users_path = File.join(@dir, "users.toml")
    config_path = File.join(@dir, "config.toml")
    File.write(config_path, <<~TOML)
      content_dir = "#{@posts_dir}"
      users_file = "#{@users_path}"
      [admin]
      password_hash = "#{@hash}"
    TOML
    @config = Volumen::Config.load(path: config_path)
    @store = Volumen::Store.new(@posts_dir, default_lang: "en")
  end
  def teardown
    FileUtils.remove_entry(@dir)
  end
  def test_admin_requires_login
    get "/admin/"
    assert_equal 302, last_response.status
  end
  def test_login_page_renders
    get "/admin/login"
    assert_predicate last_response, :ok?
    assert_includes last_response.body, "Sign in"
  end
  def test_session_cookie_is_secure_over_https
    get "https://example.org/admin/login"
    post "https://example.org/admin/login",
         "username" => "admin", "password" => @password, "_csrf" => csrf(last_response.body)
    cookie = last_response["Set-Cookie"].to_s
    assert_match(/;\s*secure/i, cookie)
    assert_match(/;\s*httponly/i, cookie)
    assert_match(/;\s*samesite=strict/i, cookie)
  end
  def test_session_cookie_plain_http_is_not_secure
    login
    refute_match(/;\s*secure/i, last_response["Set-Cookie"].to_s)
  end
  def test_wrong_password_is_rejected
    get "/admin/login"
    post "/admin/login",
         "username" => "admin", "password" => "nope", "_csrf" => csrf(last_response.body)
    assert_includes last_response.body, "Invalid username or password"
  end
  def test_login_then_list
    login
    assert_equal 302, last_response.status
    follow_redirect!
    assert_includes last_response.body, "Posts"
  end
  def test_create_post_writes_file
    login
    get "/admin/posts/new"
    post "/admin/posts",
         "_csrf" => csrf(last_response.body), "title" => "Test", "slug" => "test",
         "lang" => "en", "tags" => "a, b", "body" => "Hello **world**."
    assert_equal 302, last_response.status
    path = File.join(@posts_dir, "test.md")
    assert File.exist?(path)
    saved = Volumen::Post.parse(File.read(path))
    assert_equal "Test", saved.title
    assert_equal %w[a b], saved.tags
  end
  def test_create_post_with_all_langs
    login
    get "/admin/posts/new"
    post "/admin/posts",
         "_csrf" => csrf(last_response.body), "title" => "Global", "slug" => "global",
         "lang" => "en", "all_langs" => "on", "body" => "Hi"
    assert_equal 302, last_response.status
    saved = Volumen::Post.parse(File.read(File.join(@posts_dir, "global.md")))
    assert_predicate saved, :all_langs?
  end
  def test_create_post_with_cover
    login
    get "/admin/posts/new"
    post "/admin/posts",
         "_csrf" => csrf(last_response.body), "title" => "Covered", "slug" => "covered",
         "lang" => "en", "cover" => "/media/c.png", "body" => "Hi"
    assert_equal 302, last_response.status
    saved = Volumen::Post.parse(File.read(File.join(@posts_dir, "covered.md")))
    assert_equal "/media/c.png", saved.cover
  end
  def test_preview_requires_login
    post "/admin/preview", "body" => "**hi**"
    assert_equal 302, last_response.status
  end
  def test_csrf_is_enforced
    login
    post "/admin/posts", "title" => "X", "slug" => "x", "body" => "y"
    assert_equal 403, last_response.status
  end
  def test_image_upload_and_serving
    login
    get "/admin/posts/new"
    token = csrf(last_response.body)
    image_path = File.join(@dir, "pic.png")
    File.binwrite(image_path, "PNGDATA")
    post "/admin/uploads",
         "_csrf" => token,
         "file" => Rack::Test::UploadedFile.new(image_path, "image/png")
    assert_predicate last_response, :ok?
    url = JSON.parse(last_response.body)["url"]
    assert_match(%r{\A/media/}, url)
    get url
    assert_predicate last_response, :ok?
    assert_equal "PNGDATA", last_response.body
  end
  def test_settings_requires_login
    get "/admin/settings"
    assert_equal 302, last_response.status
  end
  def test_change_password
    login
    get "/admin/settings"
    post "/admin/settings/password",
         "_csrf" => csrf(last_response.body),
         "current_password" => @password, "new_password" => "brand-new"
    assert_includes last_response.body, "Password updated"
    fresh = Volumen::Users.new(path: @users_path)
    refute fresh.authenticate("admin", @password)
    assert fresh.authenticate("admin", "brand-new")
  end
  def test_add_and_login_as_new_user
    login
    get "/admin/settings"
    post "/admin/settings/users",
         "_csrf" => csrf(last_response.body), "username" => "editor", "password" => "pw12345"
    assert_includes last_response.body, "User added"
    post "/admin/logout", "_csrf" => csrf(last_response.body)
    get "/admin/login"
    post "/admin/login",
         "username" => "editor", "password" => "pw12345", "_csrf" => csrf(last_response.body)
    assert_equal 302, last_response.status
  end
  def test_cannot_delete_self
    login
    get "/admin/settings"
    post "/admin/settings/users/admin/delete", "_csrf" => csrf(last_response.body)
    assert_includes last_response.body, "cannot delete your own account"
  end
  def test_admin_can_assign_role
    login
    add_user("writer", "pw12345", "author")
    assert_includes last_response.body, "User added"
    assert_equal "author", Volumen::Users.new(path: @users_path).find("writer").role
  end
  def test_author_cannot_manage_users
    login
    add_user("writer", "pw12345", "author")
    logout
    login_as("writer", "pw12345")
    follow_redirect!
    post "/admin/settings/users",
         "_csrf" => csrf(last_response.body), "username" => "intruder", "password" => "pw12345"
    assert_equal 403, last_response.status
  end
  def test_author_settings_omits_user_management
    login
    add_user("writer", "pw12345", "author")
    logout
    login_as("writer", "pw12345")
    follow_redirect!
    get "/admin/settings"
    refute_includes last_response.body, "Add user"
  end
  def test_author_can_create_post
    login
    add_user("writer", "pw12345", "author")
    logout
    login_as("writer", "pw12345")
    get "/admin/posts/new"
    post "/admin/posts",
         "_csrf" => csrf(last_response.body), "title" => "By author", "slug" => "by-author",
         "lang" => "en", "body" => "Hi"
    assert_equal 302, last_response.status
    assert File.exist?(File.join(@posts_dir, "by-author.md"))
  end
  private
  def csrf(body)
    body[/name="_csrf" value="([^"]+)"/, 1]
  end
  def login
    get "/admin/login"
    post "/admin/login",
         "username" => "admin", "password" => @password, "_csrf" => csrf(last_response.body)
  end
  def login_as(username, password)
    get "/admin/login"
    post "/admin/login",
         "username" => username, "password" => password, "_csrf" => csrf(last_response.body)
  end
  def logout
    post "/admin/logout", "_csrf" => csrf(last_response.body)
  end
  def add_user(username, password, role)
    get "/admin/settings"
    post "/admin/settings/users",
         "_csrf" => csrf(last_response.body),
         "username" => username, "password" => password, "role" => role
  end
 end
@@ -1,57 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 require "tmpdir"
 class ConfigTest < Minitest::Test
  MISSING = "/nonexistent/volumen.toml"
  def test_defaults_when_file_missing
    config = Volumen::Config.load(path: MISSING)
    assert_equal 9090, config.port
    assert_equal "en", config.language
  end
  def test_overrides_apply
    config = Volumen::Config.load(
      path: MISSING,
      overrides: { host: "127.0.0.1", port: 9000, content: "/srv/posts" }
    )
    assert_equal "127.0.0.1", config.host
    assert_equal 9000, config.port
    assert_equal "/srv/posts", config.content_dir
  end
  def test_does_not_mutate_defaults
    Volumen::Config.load(path: MISSING, overrides: { host: "10.0.0.1" })
    assert_equal "0.0.0.0", Volumen::Config.load(path: MISSING).host
  end
  def test_loads_and_merges_file
    Dir.mktmpdir do |dir|
      path = File.join(dir, "config.toml")
      File.write(path, "[site]\ntitle = \"Custom\"\n")
      config = Volumen::Config.load(path: path)
      assert_equal "Custom", config.site["title"]
      assert_equal 9090, config.port
    end
  end
  def test_generate_default_writes_template
    Dir.mktmpdir do |dir|
      path = File.join(dir, "sub", "config.toml")
      assert_equal path, Volumen::Config.generate_default(path)
      assert_path_exists path
      assert_equal 9090, Volumen::Config.load(path: path).port
    end
  end
  def test_generate_default_skips_existing
    Dir.mktmpdir do |dir|
      path = File.join(dir, "config.toml")
      File.write(path, "[server]\nport = 9999\n")
      assert_nil Volumen::Config.generate_default(path)
      assert_equal 9999, Volumen::Config.load(path: path).port
    end
  end
 end
@@ -1,47 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 class FrontmatterTest < Minitest::Test
  def test_parse_extracts_metadata_and_body
    content = <<~POST
      +++
      title = "Hello"
      tags = ["a", "b"]
      +++
      Body text.
    POST
    metadata, body = Volumen::Frontmatter.parse(content)
    assert_equal "Hello", metadata["title"]
    assert_equal %w[a b], metadata["tags"]
    assert_equal "Body text.\n", body
  end
  def test_parse_without_frontmatter
    metadata, body = Volumen::Frontmatter.parse("# Just markdown\n")
    assert_empty metadata
    assert_equal "# Just markdown\n", body
  end
  def test_parse_without_closing_delimiter
    content = "+++\ntitle = \"x\"\n\nbody"
    metadata, body = Volumen::Frontmatter.parse(content)
    assert_empty metadata
    assert_equal content, body
  end
  def test_round_trip
    metadata = { "title" => "Hello", "tags" => ["intro"], "draft" => false }
    dumped = Volumen::Frontmatter.dump(metadata, "Hello **world**.")
    parsed_meta, parsed_body = Volumen::Frontmatter.parse(dumped)
    assert_equal metadata, parsed_meta
    assert_equal "Hello **world**.", parsed_body.strip
  end
  def test_parse_normalises_crlf
    metadata, body = Volumen::Frontmatter.parse("+++\r\ntitle = \"x\"\r\n+++\r\n\r\nBody\r\n")
    assert_equal "x", metadata["title"]
    assert_equal "Body\n", body
  end
 end
@@ -1,33 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 class MarkdownTest < Minitest::Test
  def test_renders_bold
    assert_includes Volumen::Markdown.render("**bold**"), "<strong>bold</strong>"
  end
  def test_renders_heading
    assert_includes Volumen::Markdown.render("# Title"), "<h1"
  end
  def test_renders_gfm_table
    table = <<~MD
      | A | B |
      |---|---|
      | 1 | 2 |
    MD
    assert_includes Volumen::Markdown.render(table), "<table"
  end
  def test_renders_fenced_code_block
    code = <<~MD
      ```ruby
      puts 1
      ```
    MD
    html = Volumen::Markdown.render(code)
    assert_includes html, "<pre"
    assert_includes html, "<code"
  end
 end
@@ -1,24 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 class PasswordTest < Minitest::Test
  def test_hash_and_verify_round_trip
    encoded = Volumen::Password.hash("s3cret")
    assert Volumen::Password.verify("s3cret", encoded)
  end
  def test_verify_rejects_wrong_password
    encoded = Volumen::Password.hash("s3cret")
    refute Volumen::Password.verify("nope", encoded)
  end
  def test_verify_rejects_malformed_input
    refute Volumen::Password.verify("x", "not-a-hash")
    refute Volumen::Password.verify("x", "")
  end
  def test_encoded_format
    assert Volumen::Password.hash("pw").start_with?("scrypt$16384$8$1$")
  end
 end
@@ -1,59 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 class PostTest < Minitest::Test
  def test_parse_builds_post
    content = <<~POST
      +++
      title = "Hello"
      slug = "hello"
      lang = "en"
      tags = ["intro", "ruby"]
      date = 2026-01-15
      draft = true
      +++
      First paragraph.
    POST
    post = Volumen::Post.parse(content)
    assert_equal "hello", post.slug
    assert_equal "Hello", post.title
    assert_equal "en", post.lang
    assert_equal %w[intro ruby], post.tags
    assert_predicate post, :draft?
    assert_equal "2026-01-15", post.date_string
  end
  def test_excerpt_derived_from_body
    post = Volumen::Post.new(metadata: { "slug" => "x" }, body: "# Heading\n\nThe body paragraph.")
    assert_equal "The body paragraph.", post.excerpt
  end
  def test_summary_shape
    post = Volumen::Post.new(metadata: { "slug" => "x", "title" => "X" }, body: "Body")
    summary = post.summary
    assert_equal "/api/volumen/posts/x", summary["url"]
    assert_equal "X", summary["title"]
    refute_predicate post, :draft?
  end
  def test_detail_includes_rendered_html
    post = Volumen::Post.new(metadata: { "slug" => "x" }, body: "**hi**")
    assert_includes post.detail["html"], "<strong>hi</strong>"
  end
  def test_summary_includes_cover_and_reading_time
    post = Volumen::Post.new(
      metadata: { "slug" => "x", "cover" => "/media/c.png" },
      body: ("word " * 250)
    )
    assert_equal "/media/c.png", post.summary["cover"]
    assert_equal 2, post.summary["reading_time"]
  end
  def test_reading_time_is_at_least_one
    post = Volumen::Post.new(metadata: { "slug" => "x" }, body: "short")
    assert_equal 1, post.reading_time
  end
 end
@@ -1,95 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 require "volumen/server"
 require "rack/test"
 require "tmpdir"
 require "fileutils"
 require "json"
 class ServerTest < Minitest::Test
  include Rack::Test::Methods
  def app
    Volumen::Server.configured(config: @config, store: @store)
  end
  def setup
    @dir = Dir.mktmpdir
    File.write(File.join(@dir, "hello.md"), <<~POST)
      +++
      title = "Hello"
      tags = ["intro"]
      +++
      Hello **world**.
    POST
    File.write(File.join(@dir, "draft.md"), <<~POST)
      +++
      title = "Draft"
      draft = true
      +++
      Secret.
    POST
    @config = Volumen::Config.load(path: "/nonexistent", overrides: { content: @dir })
    @store = Volumen::Store.new(@dir, default_lang: "en")
  end
  def teardown
    FileUtils.remove_entry(@dir)
  end
  def test_site_endpoint
    get "/api/volumen/site"
    assert_predicate last_response, :ok?
    assert_equal "My Blog", JSON.parse(last_response.body)["title"]
  end
  def test_posts_excludes_drafts
    get "/api/volumen/posts"
    data = JSON.parse(last_response.body)
    assert_equal 1, data["total"]
    assert_equal "hello", data["posts"].first["slug"]
  end
  def test_post_detail_renders_html
    get "/api/volumen/posts/hello"
    assert_predicate last_response, :ok?
    assert_includes JSON.parse(last_response.body)["html"], "<strong>world</strong>"
  end
  def test_post_not_found
    get "/api/volumen/posts/missing"
    assert_equal 404, last_response.status
    assert_equal "not_found", JSON.parse(last_response.body)["error"]
  end
  def test_tags_endpoint
    get "/api/volumen/tags"
    assert_equal [{ "name" => "intro", "count" => 1 }], JSON.parse(last_response.body)["tags"]
  end
  def test_cors_header_present
    get "/api/volumen/site"
    header = last_response.headers["Access-Control-Allow-Origin"] ||
             last_response.headers["access-control-allow-origin"]
    assert_equal "*", header
  end
  def test_all_langs_post_appears_in_other_languages
    File.write(File.join(@dir, "global.md"), <<~POST)
      +++
      title = "Global"
      lang = "en"
      all_langs = true
      +++
      Everywhere.
    POST
    get "/api/volumen/posts?lang=cs"
    slugs = JSON.parse(last_response.body)["posts"].map { |post| post["slug"] }
    assert_includes slugs, "global"
    refute_includes slugs, "hello"
  end
 end
@@ -1,52 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 require "tmpdir"
 require "fileutils"
 class StoreTest < Minitest::Test
  def setup
    @dir = Dir.mktmpdir
    File.write(File.join(@dir, "hello.md"), "+++\ntitle = \"Hello\"\n+++\n\nBody\n")
    FileUtils.mkdir_p(File.join(@dir, "cs"))
    File.write(File.join(@dir, "cs", "ahoj.md"), "+++\ntitle = \"Ahoj\"\n+++\n\nTelo\n")
  end
  def teardown
    FileUtils.remove_entry(@dir)
  end
  def test_all_loads_every_post
    assert_equal 2, Volumen::Store.new(@dir).all.length
  end
  def test_slug_falls_back_to_filename
    slugs = Volumen::Store.new(@dir).all.map(&:slug).sort
    assert_equal %w[ahoj hello], slugs
  end
  def test_lang_derived_from_subdirectory
    store = Volumen::Store.new(@dir, default_lang: "en")
    assert_equal "cs", store.find("ahoj").lang
    assert_equal "en", store.find("hello").lang
  end
  def test_find_returns_nil_when_missing
    assert_nil Volumen::Store.new(@dir).find("nope")
  end
  def test_all_langs_post_is_visible_in_any_language
    File.write(File.join(@dir, "global.md"), <<~POST)
      +++
      title = "Global"
      lang = "en"
      all_langs = true
      +++
      Visible everywhere.
    POST
    store = Volumen::Store.new(@dir, default_lang: "en")
    assert store.find("global", lang: "cs")
    assert store.find("global", lang: "en")
  end
 end
@@ -1,4 +0,0 @@
 # frozen_string_literal: true
 require "minitest/autorun"
 require "volumen"
@@ -1,114 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 require "tmpdir"
 require "fileutils"
 class UsersTest < Minitest::Test
  def setup
    @dir = Dir.mktmpdir
    @path = File.join(@dir, "users.toml")
  end
  def teardown
    FileUtils.remove_entry(@dir)
  end
  def test_bootstrap_user_from_hash
    hash = Volumen::Password.hash("secret")
    users = Volumen::Users.new(path: @path, bootstrap_hash: hash)
    assert_equal 1, users.all.length
    assert users.authenticate("admin", "secret")
  end
  def test_no_users_without_file_or_hash
    refute_predicate Volumen::Users.new(path: @path), :any?
  end
  def test_add_and_authenticate
    users = Volumen::Users.new(path: @path)
    assert users.add("alice", "wonderland")
    assert_path_exists @path
    assert users.authenticate("alice", "wonderland")
    refute users.authenticate("alice", "nope")
  end
  def test_add_rejects_duplicate
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x")
    assert_nil users.add("alice", "y")
  end
  def test_update_password
    users = Volumen::Users.new(path: @path)
    users.add("alice", "old")
    users.update_password("alice", "new")
    refute users.authenticate("alice", "old")
    assert users.authenticate("alice", "new")
  end
  def test_rename
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x")
    assert users.rename("alice", "alicia")
    assert_nil users.find("alice")
    assert users.find("alicia")
  end
  def test_delete_keeps_last_user
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x")
    assert_nil users.delete("alice")
    users.add("bob", "y")
    assert users.delete("bob")
    assert_nil users.find("bob")
  end
  def test_default_role_is_author
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x")
    assert_equal "author", users.find("alice").role
  end
  def test_add_with_explicit_role
    users = Volumen::Users.new(path: @path)
    users.add("boss", "x", "admin")
    assert_equal "admin", users.find("boss").role
  end
  def test_invalid_role_falls_back_to_default
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x", "wizard")
    assert_equal "author", users.find("alice").role
  end
  def test_bootstrap_user_is_admin
    users = Volumen::Users.new(path: @path, bootstrap_hash: Volumen::Password.hash("s"))
    assert_equal "admin", users.find("admin").role
  end
  def test_set_role
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x", "admin")
    users.add("bob", "y", "author")
    assert users.set_role("bob", "admin")
    assert_equal "admin", users.find("bob").role
  end
  def test_cannot_demote_last_admin
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x", "admin")
    users.add("bob", "y", "author")
    assert_nil users.set_role("alice", "author")
    assert_equal "admin", users.find("alice").role
  end
  def test_cannot_delete_last_admin
    users = Volumen::Users.new(path: @path)
    users.add("alice", "x", "admin")
    users.add("bob", "y", "author")
    assert_nil users.delete("alice")
    users.add("carol", "z", "admin")
    assert users.delete("alice")
  end
 end
@@ -1,13 +0,0 @@
 # frozen_string_literal: true
 require "test_helper"
 class VolumenTest < Minitest::Test
  def test_version_is_defined
    refute_nil Volumen::VERSION
  end
  def test_version_is_semver
    assert_match(/\A\d+\.\d+\.\d+\z/, Volumen::VERSION)
  end
 end
@@ -0,0 +1,125 @@
 """Shared fixtures for the volumen test suite."""
 from __future__ import annotations
 import tempfile
 from collections.abc import Generator
 from pathlib import Path
 import pytest
 from fastapi.testclient import TestClient
 from volumen import reset_login_attempts
 from volumen.config import Config
 from volumen.password import hash_password as hash_pw
 from volumen.store import Store
 from volumen.users import Users
@pytest.fixture(autouse=True)
 def _reset_login_attempts() -> Generator[None]:
    """Reset the global login-attempts tracker before every test."""
    reset_login_attempts()
    yield
@pytest.fixture
 def tmp_dir() -> Generator[Path]:
    """Create a temporary directory that is cleaned up after the test."""
    with tempfile.TemporaryDirectory() as d:
        yield Path(d)
@pytest.fixture
 def tmp_content_dir(tmp_path: Path) -> Path:
    """Temporary content directory with sample posts."""
    content = tmp_path / "posts"
    content.mkdir()
    (content / "hello.md").write_text(
        '+++\ntitle = "Hello"\ntags = ["intro"]\n+++\n\nHello **world**.\n'
    )
    (content / "draft.md").write_text('+++\ntitle = "Draft"\ndraft = true\n+++\n\nSecret.\n')
    return content
@pytest.fixture
 def config(tmp_content_dir: Path, tmp_path: Path) -> Config:
    """Test Config instance pointing at a temp content directory."""
    users_file = str(tmp_path / "users.toml")
    return Config.load(
        path="/nonexistent/volumen.toml",
        overrides={"content": str(tmp_content_dir), "users_file": users_file},
    )
@pytest.fixture
 def store(tmp_content_dir: Path) -> Store:
    """Test Store instance backed by a temp content directory."""
    return Store(str(tmp_content_dir), default_lang="en")
@pytest.fixture
 def users_path(tmp_path: Path) -> str:
    """Path for a temporary users.toml file."""
    return str(tmp_path / "users.toml")
@pytest.fixture
 def bootstrap_hash() -> str:
    """A pre-hashed password for bootstrap tests."""
    return hash_pw("volumen-test-password")
@pytest.fixture
 def users(users_path: str, bootstrap_hash: str) -> Users:
    """Test Users instance with bootstrap admin user."""
    return Users(path=users_path, bootstrap_hash=bootstrap_hash)
@pytest.fixture
 def client(config: Config, store: Store) -> TestClient:
    """FastAPI TestClient for public API tests."""
    from volumen.app import create_app
    app = create_app(config, store)
    return TestClient(app)
@pytest.fixture
 def admin_config_dir(tmp_path: Path) -> Path:
    """Create a directory with config and posts for admin tests."""
    posts_dir = tmp_path / "posts"
    posts_dir.mkdir()
    users_path = tmp_path / "users.toml"
    config_path = tmp_path / "config.toml"
    pw_hash = hash_pw("volumen-test-password")
    config_path.write_text(
        f'content_dir = "{posts_dir}"\n'
        f'users_file = "{users_path}"\n\n'
        "[admin]\n"
        f'password_hash = "{pw_hash}"\n'
    )
    return tmp_path
@pytest.fixture
 def admin_client(admin_config_dir: Path) -> TestClient:
    """FastAPI TestClient for admin tests with bootstrap admin."""
    from volumen.app import create_app
    from volumen.config import Config
    from volumen.store import Store
    config = Config.load(path=str(admin_config_dir / "config.toml"))
    store = Store(config.content_dir, default_lang="en")
    app = create_app(config, store)
    return TestClient(app)
@pytest.fixture
 def sample_post_md() -> str:
    """Sample post in Markdown with TOML frontmatter."""
    return (
        '+++\ntitle = "Test Post"\nslug = "test-post"\nlang = "en"\n'
        'tags = ["python", "blog"]\ndate = 2026-01-15\ndraft = false\n+++\n\n'
        "This is the **body** of the post.\n\nSecond paragraph."
    )
@@ -0,0 +1,436 @@
 """Tests for the admin routes."""
 from __future__ import annotations
 import re
 from pathlib import Path
 from fastapi.testclient import TestClient
 from volumen.users import Users
 def _csrf_from_body(body: str) -> str:
    match = re.search(r'name="_csrf" value="([^"]+)"', body)
    if match:
        return match.group(1)
    return ""
 class TestAdminLogin:
    def test_admin_redirect_to_login(self, admin_client: TestClient) -> None:
        response = admin_client.get("/admin/", follow_redirects=False)
        assert response.status_code in (302, 307, 301, 303)
    def test_login_page_renders(self, admin_client: TestClient) -> None:
        response = admin_client.get("/admin/login")
        assert response.status_code == 200
        assert "Sign in" in response.text
    def test_login_with_valid_credentials(self, admin_client: TestClient) -> None:
        resp = admin_client.get("/admin/login")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/login",
            data={
                "username": "admin",
                "password": "volumen-test-password",
                "_csrf": token,
            },
            follow_redirects=False,
        )
        assert resp.status_code in (302, 307, 303)
    def test_login_with_invalid_credentials(self, admin_client: TestClient) -> None:
        resp = admin_client.get("/admin/login")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/login",
            data={"username": "admin", "password": "nope", "_csrf": token},
        )
        assert "Invalid" in resp.text or "invalid" in resp.text.lower()
    def test_wrong_password_is_rejected(self, admin_client: TestClient) -> None:
        resp = admin_client.get("/admin/login")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/login",
            data={"username": "admin", "password": "nope", "_csrf": token},
        )
        assert "Invalid username or password" in resp.text
 def _login(client: TestClient) -> str:
    """Log in as admin and return the session cookie value."""
    resp = client.get("/admin/login")
    token = _csrf_from_body(resp.text)
    client.post(
        "/admin/login",
        data={
            "username": "admin",
            "password": "volumen-test-password",
            "_csrf": token,
        },
        follow_redirects=True,
    )
    return token
 def _login_as(client: TestClient, username: str, password: str) -> str:
    resp = client.get("/admin/login")
    token = _csrf_from_body(resp.text)
    client.post(
        "/admin/login",
        data={"username": username, "password": password, "_csrf": token},
        follow_redirects=True,
    )
    return token
 class TestAdminPostList:
    def test_post_list_requires_login(self, admin_client: TestClient) -> None:
        resp = admin_client.get("/admin/", follow_redirects=False)
        assert resp.status_code in (302, 307, 303)
    def test_post_list_after_login(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/")
        assert resp.status_code == 200
        assert "Posts" in resp.text
 class TestCreatePost:
    def test_create_post_writes_file(
        self, admin_client: TestClient, admin_config_dir: Path
    ) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "Test",
                "slug": "test",
                "lang": "en",
                "tags": "a, b",
                "body": "Hello **world**.",
            },
            follow_redirects=False,
        )
        assert resp.status_code in (302, 307, 303)
        post_path = admin_config_dir / "posts" / "test.md"
        assert post_path.exists()
        content = post_path.read_text()
        assert "Test" in content
        assert "a, b" in content or "a" in content
    def test_create_post_with_all_langs(
        self, admin_client: TestClient, admin_config_dir: Path
    ) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "Global",
                "slug": "global",
                "lang": "en",
                "all_langs": "on",
                "body": "Hi",
            },
            follow_redirects=False,
        )
        post_path = admin_config_dir / "posts" / "global.md"
        assert post_path.exists()
        content = post_path.read_text()
        assert "all_langs" in content
    def test_create_post_with_cover(self, admin_client: TestClient, admin_config_dir: Path) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "Covered",
                "slug": "covered",
                "lang": "en",
                "cover": "/media/c.png",
                "body": "Hi",
            },
            follow_redirects=False,
        )
        post_path = admin_config_dir / "posts" / "covered.md"
        content = post_path.read_text()
        assert "/media/c.png" in content
    def test_create_post_rejects_invalid_slug(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "X",
                "slug": "../../etc/passwd",
                "lang": "en",
                "body": "y",
            },
        )
        assert "Invalid slug" in resp.text
    def test_create_post_rejects_xss_in_slug(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "X",
                "slug": 'foo" onclick',
                "lang": "en",
                "body": "y",
            },
        )
        assert "Invalid slug" in resp.text
    def test_create_post_duplicate_slug(
        self, admin_client: TestClient, admin_config_dir: Path
    ) -> None:
        (admin_config_dir / "posts" / "dup.md").write_text(
            '+++\ntitle = "Existing"\n+++\n\nBody.\n'
        )
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/posts",
            data={
                "_csrf": token,
                "title": "Dup",
                "slug": "dup",
                "lang": "en",
                "body": "x",
            },
        )
        assert "already exists" in resp.text.lower()
 class TestCSRF:
    def test_csrf_token_required(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.post(
            "/admin/posts",
            data={"title": "X", "slug": "x", "body": "y"},
        )
        assert resp.status_code == 403
    def test_invalid_csrf_token_rejected(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/posts/new")
        resp = admin_client.post(
            "/admin/posts",
            data={
                "_csrf": "invalid-token",
                "title": "X",
                "slug": "x",
                "body": "y",
            },
        )
        assert resp.status_code == 403
 class TestLogout:
    def test_logout_clears_session(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/")
        assert resp.status_code == 200
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        admin_client.post("/admin/logout", data={"_csrf": token})
        resp = admin_client.get("/admin/", follow_redirects=False)
        assert resp.status_code in (302, 307, 303)
 class TestSettings:
    def test_settings_requires_login(self, admin_client: TestClient) -> None:
        resp = admin_client.get("/admin/settings", follow_redirects=False)
        assert resp.status_code in (302, 307, 303)
    def test_change_password(self, admin_client: TestClient, admin_config_dir: Path) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/password",
            data={
                "_csrf": token,
                "current_password": "volumen-test-password",
                "new_password": "volumen-brand-new-pw",
            },
        )
        assert "Password updated" in resp.text
        users_path = str(admin_config_dir / "users.toml")
        fresh = Users(path=users_path)
        assert fresh.authenticate("admin", "volumen-test-password") is None
        assert fresh.authenticate("admin", "volumen-brand-new-pw") is not None
    def test_change_password_wrong_current(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/password",
            data={
                "_csrf": token,
                "current_password": "wrong",
                "new_password": "brand-new",
            },
        )
        assert "incorrect" in resp.text.lower()
    def test_change_username(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/username",
            data={"_csrf": token, "username": "superadmin"},
        )
        assert "updated" in resp.text.lower()
    def test_change_username_accepts_same_name(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/username",
            data={"_csrf": token, "username": "admin"},
        )
        assert "unchanged" in resp.text.lower()
    def test_change_username_rejects_special_chars(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/username",
            data={"_csrf": token, "username": 'foo" bar'},
        )
        assert "letters" in resp.text.lower()
    def test_change_display_name(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/name",
            data={"_csrf": token, "name": "Admin User"},
        )
        assert "Display name updated" in resp.text
 class TestFediverseSettings:
    def test_change_fediverse_creator_valid(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/fediverse",
            data={"_csrf": token, "fediverse_creator": "@user@example.com"},
        )
        assert "updated" in resp.text.lower()
    def test_change_fediverse_creator_invalid(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/fediverse",
            data={"_csrf": token, "fediverse_creator": "not-a-handle"},
        )
        assert "handle" in resp.text.lower()
 class TestUserManagement:
    def test_create_user_admin_only(self, admin_client: TestClient, admin_config_dir: Path) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/users",
            data={
                "_csrf": token,
                "username": "editor",
                "password": "editor-test-pw",
                "role": "author",
            },
        )
        assert "User added" in resp.text
        users_path = str(admin_config_dir / "users.toml")
        users = Users(path=users_path)
        assert users.find("editor") is not None
    def test_create_user_then_login(self, admin_client: TestClient, admin_config_dir: Path) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        admin_client.post(
            "/admin/settings/users",
            data={"_csrf": token, "username": "editor2", "password": "editor-test-pw"},
        )
        # Logout
        resp = admin_client.get("/admin/login")
        token = _csrf_from_body(resp.text)
        admin_client.post("/admin/logout", data={"_csrf": token})
        # Login as new user
        _login_as(admin_client, "editor2", "editor-test-pw")
        resp = admin_client.get("/admin/")
        assert resp.status_code == 200
    def test_cannot_delete_own_account(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/users/admin/delete",
            data={"_csrf": token},
        )
        assert "cannot delete your own" in resp.text.lower()
    def test_cannot_create_user_with_empty_fields(self, admin_client: TestClient) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/settings")
        token = _csrf_from_body(resp.text)
        resp = admin_client.post(
            "/admin/settings/users",
            data={"_csrf": token, "username": "", "password": ""},
        )
        assert "required" in resp.text.lower() or "empty" in resp.text.lower()
 class TestOrphanedSession:
    def test_orphaned_session_is_rejected(
        self, admin_client: TestClient, admin_config_dir: Path
    ) -> None:
        _login(admin_client)
        resp = admin_client.get("/admin/")
        assert resp.status_code == 200
        # Clear users file to simulate deleted user
        users_path = admin_config_dir / "users.toml"
        users_path.write_text("")
        resp = admin_client.get("/admin/", follow_redirects=False)
        assert resp.status_code in (302, 307, 303)
@@ -0,0 +1,512 @@
 """Tests for CLI entry point."""
 from __future__ import annotations
 import argparse
 import contextlib
 import json
 import sys
 import urllib.error
 from pathlib import Path
 from unittest import mock
 import pytest
 from volumen import VERSION
 from volumen import cli as cli_module
 from volumen.cli import main
 class TestVersionCommand:
    def test_version_output(self, capsys: pytest.CaptureFixture[str]) -> None:
        with (
            mock.patch.object(sys, "argv", ["volumen", "version"]),
            contextlib.suppress(SystemExit),
        ):
            main()
        captured = capsys.readouterr()
        assert VERSION in captured.out
 class TestHelpCommand:
    def test_help_output(self, capsys: pytest.CaptureFixture[str]) -> None:
        with mock.patch.object(sys, "argv", ["volumen", "--help"]), contextlib.suppress(SystemExit):
            main()
        captured = capsys.readouterr()
        assert "volumen" in captured.out or "usage" in captured.out.lower()
 class TestUnknownCommand:
    def test_unknown_command_exits(self) -> None:
        with mock.patch.object(sys, "argv", ["volumen", "bogus"]), pytest.raises(SystemExit):
            main()
 class TestParseServeOptions:
    def test_parse_serve_defaults(self) -> None:
        with mock.patch.object(sys, "argv", ["volumen", "serve"]):
            import argparse
            parser = argparse.ArgumentParser()
            sp = parser.add_subparsers(dest="command")
            sp_serve = sp.add_parser("serve")
            sp_serve.add_argument("--config", default="/etc/volumen/config.toml")
            sp_serve.add_argument("--host", default=None)
            sp_serve.add_argument("--port", type=int, default=None)
            sp_serve.add_argument("--content", default=None)
            args = parser.parse_args(["serve"])
            assert args.config == "/etc/volumen/config.toml"
    def test_parse_serve_overrides(self) -> None:
        import argparse
        parser = argparse.ArgumentParser()
        sp = parser.add_subparsers(dest="command")
        sp_serve = sp.add_parser("serve")
        sp_serve.add_argument("--config", default="/etc/volumen/config.toml")
        sp_serve.add_argument("--host", default=None)
        sp_serve.add_argument("--port", type=int, default=None)
        sp_serve.add_argument("--content", default=None)
        args = parser.parse_args(
            ["serve", "--config", "/t.toml", "--host", "127.0.0.1", "--port", "9000"]
        )
        assert args.config == "/t.toml"
        assert args.host == "127.0.0.1"
        assert args.port == 9000
 class TestPrepareConfig:
    def test_prepare_config_writes_template(self, tmp_path: Path) -> None:
        from volumen.config import Config
        path = tmp_path / "config.toml"
        result = Config.generate_default(str(path))
        assert result == str(path)
        assert path.exists()
    def test_prepare_config_noops_when_present(self, tmp_path: Path) -> None:
        from volumen.config import Config
        path = tmp_path / "config.toml"
        path.write_text("[server]\nport = 1\n")
        result = Config.generate_default(str(path))
        assert result is None
 class TestCheckUpdate:
    def _fake_response(self, payload: dict[str, object]) -> object:
        """Build a context-manager-compatible mock that returns *payload* on .read()."""
        response = mock.MagicMock()
        response.read.return_value = json.dumps(payload).encode("utf-8")
        response.__enter__.return_value = response
        return response
    def _patches(
        self,
        *,
        installed: str,
        latest: str | None,
        error: Exception | None = None,
    ) -> object:
        """Stack of context managers patching version + urlopen for one call."""
        from contextlib import ExitStack
        stack = ExitStack()
        stack.enter_context(
            mock.patch.object(cli_module, "_get_installed_version", return_value=installed)
        )
        if error is not None:
            stack.enter_context(
                mock.patch.object(cli_module.urllib.request, "urlopen", side_effect=error)
            )
        else:
            stack.enter_context(
                mock.patch.object(
                    cli_module.urllib.request,
                    "urlopen",
                    return_value=self._fake_response({"info": {"version": latest}}),
                )
            )
        return stack
    def test_update_available(self, capsys: pytest.CaptureFixture[str]) -> None:
        args = argparse.Namespace(json=False)
        with self._patches(installed="0.4.0", latest="0.5.0"):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 1
        assert "0.4.0" in captured.out
        assert "0.5.0" in captured.out
        assert "uv tool upgrade volumen" in captured.out
    def test_up_to_date(self, capsys: pytest.CaptureFixture[str]) -> None:
        args = argparse.Namespace(json=False)
        with self._patches(installed="0.5.0", latest="0.5.0"):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 0
        assert "up to date" in captured.out
    def test_local_ahead_of_remote(self, capsys: pytest.CaptureFixture[str]) -> None:
        """A locally-built unreleased version is not 'behind' the latest tag."""
        args = argparse.Namespace(json=False)
        with self._patches(installed="1.0.0a1", latest="0.9.0"):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 0
        assert "up to date" in captured.out
    def test_prerelease_handling(self) -> None:
        """Pre-release and local segments are stripped before numeric comparison.
        Implementation is intentionally conservative — ``0.5.0a1`` and ``0.5.0``
        are seen as the same core version (``(0, 5, 0)``), so we report no
        update between them. A higher minor/major with a pre-release or local
        segment is still correctly detected.
        """
        assert cli_module._compare_versions("0.5.0", "0.5.1a1+build") is True
        assert cli_module._compare_versions("0.5.0+a", "0.5.0+a") is False
        assert cli_module._compare_versions("0.5.0+a", "0.5.1") is True
    def test_offline_returns_exit_code_2(self, capsys: pytest.CaptureFixture[str]) -> None:
        args = argparse.Namespace(json=False)
        with self._patches(
            installed="0.4.0",
            latest=None,
            error=urllib.error.URLError("no internet"),
        ):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 2
        assert "could not reach" in captured.err
        assert "0.4.0" in captured.err
    def test_json_output_with_update_available(self, capsys: pytest.CaptureFixture[str]) -> None:
        args = argparse.Namespace(json=True)
        with self._patches(installed="0.4.0", latest="0.5.0"):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 1
        doc = json.loads(captured.out)
        assert doc["current_version"] == "0.4.0"
        assert doc["latest_version"] == "0.5.0"
        assert doc["update_available"] is True
        assert "error" not in doc
    def test_json_output_when_offline(self, capsys: pytest.CaptureFixture[str]) -> None:
        args = argparse.Namespace(json=True)
        with self._patches(
            installed="0.4.0",
            latest=None,
            error=urllib.error.URLError("dns failure"),
        ):
            rc = cli_module._check_update(args)
        captured = capsys.readouterr()
        assert rc == 2
        doc = json.loads(captured.out)
        assert doc["current_version"] == "0.4.0"
        assert doc["latest_version"] is None
        assert doc["update_available"] is False
        assert "error" in doc
 class TestServeCommand:
    def _config_path(self, tmp_path: Path, content_dir: Path) -> Path:
        """Write a minimal but complete config and return the path."""
        config_path = tmp_path / "config.toml"
        users_file = tmp_path / "users.toml"
        config_path.write_text(
            f'content_dir = "{content_dir}"\n'
            f'users_file = "{users_file}"\n'
            "[admin]\n"
            'password_hash = ""\n'
        )
        return config_path
    def test_serve_loads_config_and_invokes_uvicorn(
        self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
    ) -> None:
        content_dir = tmp_path / "posts"
        content_dir.mkdir()
        config_path = self._config_path(tmp_path, content_dir)
        import uvicorn
        captured: list[dict[str, object]] = []
        def fake_run(app: object, **kwargs: object) -> None:
            captured.append({"app": app, **kwargs})
        monkeypatch.setattr(uvicorn, "run", fake_run)
        args = argparse.Namespace(
            config=str(config_path),
            host=None,
            port=None,
            content=None,
        )
        cli_module._serve(args)
        assert len(captured) == 1
        call = captured[0]
        assert call["host"] == "::"
        assert call["port"] == 9090
        assert call["log_level"] == "info"
        from fastapi import FastAPI
        assert isinstance(call["app"], FastAPI)
    def test_serve_applies_host_and_port_overrides(
        self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
    ) -> None:
        content_dir = tmp_path / "posts"
        content_dir.mkdir()
        config_path = self._config_path(tmp_path, content_dir)
        import uvicorn
        captured: list[dict[str, object]] = []
        def fake_run(app: object, **kwargs: object) -> None:
            captured.append(kwargs)
        monkeypatch.setattr(uvicorn, "run", fake_run)
        args = argparse.Namespace(
            config=str(config_path),
            host="127.0.0.1",
            port=9000,
            content=None,
        )
        cli_module._serve(args)
        assert captured[0]["host"] == "127.0.0.1"
        assert captured[0]["port"] == 9000
 class TestStatusCommand:
    def test_status_human_output_with_issues(
        self, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        info = {
            "config_path": "/etc/volumen/config.toml",
            "data_dir": "/var/lib/volumen/posts",
            "users_file": "/var/lib/volumen/users.toml",
            "config_exists": True,
            "data_dir_exists": True,
            "users_file_exists": False,
            "posts_subdir_exists": True,
            "media_subdir_exists": True,
            "password_hash_set": True,
            "session_key_ok": True,
            "systemd_unit_installed": True,
            "service_active": "inactive",
            "admin_user_present": False,
            "issues": ["users file does not exist", "admin user missing"],
        }
        monkeypatch.setattr(cli_module, "_status", _FakeStatus(info))
        with (
            mock.patch.object(sys, "argv", ["volumen", "status"]),
            pytest.raises(SystemExit) as exc,
        ):
            main()
        captured = capsys.readouterr()
        assert exc.value.code == 1
        assert "==>" in captured.out
        assert "volumen status" in captured.out
        assert "users file does not exist" in captured.out
        assert "admin user missing" in captured.out
        assert "Issues:" in captured.out
    def test_status_returns_zero_when_no_issues(
        self, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        info = {
            "config_path": "/etc/volumen/config.toml",
            "data_dir": "/var/lib/volumen/posts",
            "users_file": "/var/lib/volumen/users.toml",
            "config_exists": True,
            "data_dir_exists": True,
            "users_file_exists": True,
            "posts_subdir_exists": True,
            "media_subdir_exists": True,
            "password_hash_set": True,
            "session_key_ok": True,
            "systemd_unit_installed": True,
            "service_active": "active",
            "admin_user_present": True,
            "issues": [],
        }
        monkeypatch.setattr(cli_module, "_status", _FakeStatus(info))
        with (
            mock.patch.object(sys, "argv", ["volumen", "status"]),
            pytest.raises(SystemExit) as exc,
        ):
            main()
        captured = capsys.readouterr()
        assert exc.value.code == 0
        assert "All checks passed." in captured.out
 class _FakeStatus:
    """Mock returning a static info dict from cli._status."""
    def __init__(self, info: dict[str, object]) -> None:
        self._info = info
    def __call__(self, args: argparse.Namespace) -> int:
        # Mirror the shape of the real _status(). For human mode print plain
        # text; for --json print the info as JSON. Exit code 0 if no issues.
        import json as _json
        if args.json:
            print(_json.dumps(self._info, indent=2, sort_keys=True))
        else:
            print("==> volumen status")
            print()
            print(f"  Config:           {self._info['config_path']}")
            print(f"  Data dir:         {self._info['data_dir']}")
            print(f"  Users file:       {self._info['users_file']}")
            unit = "installed" if self._info["systemd_unit_installed"] else "not installed"
            print(f"  Systemd unit:     {unit}")
            print(f"  Service:          {self._info['service_active']}")
            presence = "present" if self._info["admin_user_present"] else "missing"
            print(f"  Admin user:       {presence}")
            print()
            issues = list(self._info["issues"])
            if not issues:
                print("All checks passed.")
            else:
                print("Issues:")
                for issue in issues:
                    print(f"  - {issue}")
        return 0 if not self._info["issues"] else 1
 class TestInitCommand:
    def test_init_rejects_systemd_under_local(
        self, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        # Force ``use_user=True`` then ``--systemd`` → exit 2 with explanation.
        monkeypatch.setattr(cli_module, "_is_root", lambda: False)
        with (
            mock.patch.object(
                sys,
                "argv",
                ["volumen", "init", "--local", "--systemd"],
            ),
            pytest.raises(SystemExit) as exc,
        ):
            main()
        assert exc.value.code == 2
        captured = capsys.readouterr()
        assert "--systemd is not available for per-user installs" in captured.err
    def test_init_propagates_installer_error(
        self, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        # ``system_install`` is mocked to raise InstallerError → exit 1 + stderr msg.
        monkeypatch.setattr(cli_module, "_is_root", lambda: True)
        def fake_system_install(**_kwargs: object) -> object:
            from volumen.installer import InstallerError
            raise InstallerError("simulated installer failure")
        # _init does ``from .installer import system_install`` per call, so we
        # patch at the import site (volumen.installer.system_install) rather
        # than the local reference inside cli_module.
        monkeypatch.setattr("volumen.installer.system_install", fake_system_install)
        args = argparse.Namespace(
            local=False,
            systemd=False,
            config=None,
            data=None,
            users_file=None,
            service_user="volumen",
            enable=True,
            admin_password="some-strong-pw-1234",
            force=False,
        )
        with pytest.raises(SystemExit) as exc:
            cli_module._init(args)
        captured = capsys.readouterr()
        assert exc.value.code == 1
        assert "simulated installer failure" in captured.err
    def test_init_user_install_branch(
        self, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        # ``--local`` → user_install() path. Mock user_install to skip side effects.
        monkeypatch.setattr(cli_module, "_is_root", lambda: False)
        from volumen.installer import InstallResult
        fake_result = InstallResult(
            config_path=Path("/home/u/.config/volumen/config.toml"),
            content_dir=Path("/home/u/.local/share/volumen/posts"),
            users_file=Path("/home/u/.local/share/volumen/users.toml"),
            service_user=None,
            password_hash="scrypt$...",
            session_key="x" * 128,
            systemd_unit_path=None,
            messages=[],
        )
        monkeypatch.setattr(
            "volumen.installer.user_install",
            lambda **_kw: fake_result,
        )
        args = argparse.Namespace(
            local=True,
            systemd=False,
            config=None,
            data=None,
            users_file=None,
            service_user="volumen",
            enable=True,
            admin_password="some-strong-pw-1234",
            force=False,
        )
        cli_module._init(args)  # Should not raise.
        captured = capsys.readouterr()
        assert "==> volumen installed." in captured.out
        assert "Service:       not installed" in captured.out
 class TestPrintInitSummary:
    def test_summary_skipped_message(self, capsys: pytest.CaptureFixture[str]) -> None:
        from volumen.installer import InstallResult
        result = InstallResult(
            config_path=Path("/etc/volumen/config.toml"),
            content_dir=Path("/var/lib/volumen/posts"),
            users_file=Path("/var/lib/volumen/users.toml"),
            service_user="volumen",
            password_hash="",
            session_key="",
            systemd_unit_path=None,
            messages=["config exists, leaving untouched (use --force to overwrite)"],
        )
        cli_module._print_init_summary(result, install_service=True, use_user=False)
        captured = capsys.readouterr()
        assert "left untouched" in captured.out
        assert "Nothing to do" in captured.out
    def test_summary_user_install(self, capsys: pytest.CaptureFixture[str]) -> None:
        from volumen.installer import InstallResult
        result = InstallResult(
            config_path=Path("/home/u/.config/volumen/config.toml"),
            content_dir=Path("/home/u/.local/share/volumen/posts"),
            users_file=Path("/home/u/.local/share/volumen/users.toml"),
            service_user=None,
            password_hash="",
            session_key="",
            systemd_unit_path=None,
            messages=[],
        )
        cli_module._print_init_summary(result, install_service=False, use_user=True)
        captured = capsys.readouterr()
        assert "Service:       not installed" in captured.out
@@ -0,0 +1,104 @@
 """Concurrency tests: store/users racy write scenarios.
 These tests hammer the same files from many threads to confirm that
 per-target locks, fsync, and unique tempfiles do not corrupt data.
 """
 from __future__ import annotations
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from pathlib import Path
 from volumen.post import Post
 from volumen.store import Store
 from volumen.users import Users
 class TestStoreRace:
    def test_concurrent_saves_keep_all_data(self, tmp_content_dir: Path) -> None:
        """Many threads save distinct posts in parallel."""
        store = Store(str(tmp_content_dir), default_lang="en")
        def worker(idx: int) -> str:
            slug = f"post-{idx}"
            post = Post(metadata={"slug": slug, "title": f"Post {idx}"}, body=f"body {idx}")
            store.save(post)
            return slug
        with ThreadPoolExecutor(max_workers=16) as pool:
            futures = [pool.submit(worker, i) for i in range(50)]
            for f in as_completed(futures):
                assert f.result() is not None
        posts = store.all()
        slugs = {p.slug for p in posts}
        for i in range(50):
            assert f"post-{i}" in slugs
    def test_concurrent_saves_to_same_target(self, tmp_content_dir: Path) -> None:
        """Many threads save to the same target path; no data lost."""
        store = Store(str(tmp_content_dir), default_lang="en")
        def worker(idx: int) -> None:
            post = Post(
                metadata={"slug": "shared", "title": f"v{idx}"},
                body=f"iteration {idx}",
            )
            store.save(post)
        with ThreadPoolExecutor(max_workers=8) as pool:
            list(pool.map(worker, range(20)))
        post = store.find("shared")
        assert post is not None
        # The file content must end with one of our iterations, no torn write.
        assert post.body.startswith("iteration ")
 class TestUsersRace:
    def test_concurrent_adds_keep_all_users(self, users_path: str) -> None:
        users = Users(path=users_path)
        def worker(idx: int) -> str:
            name = f"user-{idx}"
            users.add(name, "alice-test-password")
            return name
        with ThreadPoolExecutor(max_workers=8) as pool:
            futures = [pool.submit(worker, i) for i in range(30)]
            for f in as_completed(futures):
                assert f.result() is not None
        assert len(users.all) == 30
 class TestSnapshotCache:
    def test_snapshot_changes_invalidate_cache(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        store.all()  # prime cache
        (tmp_content_dir / "extra.md").write_text('+++\ntitle = "Extra"\n+++\n\nNew post.\n')
        # Even without touching mtime directly, stat() picks up the new file.
        posts = store.all()
        slugs = {p.slug for p in posts}
        assert "extra" in slugs
    def test_size_only_change_invalidates(self, tmp_content_dir: Path) -> None:
        """The cache key includes size; in-place rewrites invalidate."""
        import os
        store = Store(str(tmp_content_dir), default_lang="en")
        # Force initial cache.
        store.all()
        # Overwrite an existing file with the same mtime but different size.
        path = tmp_content_dir / "hello.md"
        st = os.stat(path)
        os.utime(path, (st.st_atime, st.st_mtime))
        path.write_text(
            '+++\ntitle = "Hello (resized)"\n+++\n\nNew body that is much longer than before.\n' * 5
        )
        # Touch back to original mtime so only size differs.
        os.utime(path, (st.st_atime, st.st_mtime))
        post = store.find("hello")
        assert post is not None
        assert "resized" in (post.title or "")
@@ -0,0 +1,112 @@
 """Tests for Config — loading, merging, defaults, overrides."""
 from __future__ import annotations
 from pathlib import Path
 from volumen.config import Config
 MISSING = "/nonexistent/volumen.toml"
 class TestDefaults:
    def test_defaults_when_file_missing(self) -> None:
        config = Config.load(path=MISSING)
        assert config.port == 9090
        assert config.language == "en"
        assert config.host == "::"
    def test_default_content_dir(self) -> None:
        config = Config.load(path=MISSING)
        assert config.content_dir == "/var/lib/volumen/posts"
    def test_default_site_title(self) -> None:
        config = Config.load(path=MISSING)
        assert config.site["title"] == "My Blog"
 class TestOverrides:
    def test_overrides_apply(self) -> None:
        config = Config.load(
            path=MISSING,
            overrides={"host": "127.0.0.1", "port": 9000, "content": "/srv/posts"},
        )
        assert config.host == "127.0.0.1"
        assert config.port == 9000
        assert config.content_dir == "/srv/posts"
    def test_does_not_mutate_defaults(self) -> None:
        Config.load(path=MISSING, overrides={"host": "10.0.0.1"})
        fresh = Config.load(path=MISSING)
        assert fresh.host == "::"
    def test_does_not_mutate_default_inner_hashes(self) -> None:
        config = Config.load(path=MISSING)
        config.site["title"] = "MUTATED"
        fresh = Config.load(path=MISSING)
        assert fresh.site["title"] == "My Blog"
 class TestLoadFromFile:
    def test_loads_and_merges_file(self, tmp_path: Path) -> None:
        config_path = tmp_path / "config.toml"
        config_path.write_text('[site]\ntitle = "Custom"\n')
        config = Config.load(path=str(config_path))
        assert config.site["title"] == "Custom"
        assert config.port == 9090  # default preserved
    def test_loads_server_section(self, tmp_path: Path) -> None:
        config_path = tmp_path / "config.toml"
        config_path.write_text('[server]\nhost = "1.2.3.4"\nport = 8000\n')
        config = Config.load(path=str(config_path))
        assert config.host == "1.2.3.4"
        assert config.port == 8000
 class TestGenerateDefault:
    def test_generate_default_writes_template(self, tmp_path: Path) -> None:
        dest = tmp_path / "sub" / "config.toml"
        result = Config.generate_default(str(dest))
        assert result == str(dest)
        assert dest.exists()
        loaded = Config.load(path=str(dest))
        assert loaded.port == 9090
    def test_generate_default_skips_existing(self, tmp_path: Path) -> None:
        config_path = tmp_path / "config.toml"
        config_path.write_text("[server]\nport = 9999\n")
        result = Config.generate_default(str(config_path))
        assert result is None
        loaded = Config.load(path=str(config_path))
        assert loaded.port == 9999
 class TestAccessors:
    def test_host(self) -> None:
        config = Config.load(path=MISSING, overrides={"host": "127.0.0.1"})
        assert config.host == "127.0.0.1"
    def test_port(self) -> None:
        assert Config.load(path=MISSING).port == 9090
    def test_content_dir(self) -> None:
        config = Config.load(path=MISSING, overrides={"content": "/tmp/posts"})
        assert config.content_dir == "/tmp/posts"
    def test_users_file(self) -> None:
        config = Config.load(path=MISSING)
        assert config.users_file == "/var/lib/volumen/users.toml"
    def test_site(self) -> None:
        config = Config.load(path=MISSING)
        assert isinstance(config.site, dict)
        assert "title" in config.site
    def test_admin(self) -> None:
        config = Config.load(path=MISSING)
        assert isinstance(config.admin, dict)
        assert "password_hash" in config.admin
    def test_language(self) -> None:
        config = Config.load(path=MISSING)
        assert config.language == "en"
@@ -0,0 +1,177 @@
 """Coverage tests for feed helpers — RSS, JSON Feed, sitemap."""
 from __future__ import annotations
 from datetime import date
 from typing import Any
 from volumen.feed_helpers import (
    _iso_date,
    _rfc822_date,
    render_json_feed,
    render_rss_feed,
    render_sitemap,
 )
 from volumen.post import Post
 SITE: dict[str, Any] = {
    "title": "My Blog",
    "description": "A blog.",
    "language": "en",
 }
 def _post(
    *,
    title: str = "Hello",
    slug: str = "hello",
    post_date: str = "2026-01-15",
    tags: list[str] | None = None,
    excerpt: str = "",
    fediverse_creator: str = "",
    body: str = "Body.",
 ) -> Post:
    """Build a Post with optional fields, simulating parse() without frontmatter I/O."""
    metadata: dict[str, Any] = {"title": title, "slug": slug}
    if post_date:
        metadata["date"] = post_date
    if tags is not None:
        metadata["tags"] = tags
    if excerpt:
        metadata["excerpt"] = excerpt
    if fediverse_creator:
        metadata["fediverse_creator"] = fediverse_creator
    return Post(metadata=metadata, body=body)
 class TestRenderRSSFeed:
    def test_basic_two_posts(self) -> None:
        posts = [
            _post(slug="a", title="Alpha"),
            _post(slug="b", title="Beta"),
        ]
        xml = render_rss_feed(posts, SITE, "https://example.com")
        assert '<?xml version="1.0"' in xml
        assert "<rss version=" in xml
        assert "<title>My Blog</title>" in xml
        assert "<link>https://example.com</link>" in xml
        assert "<description>A blog.</description>" in xml
        assert "<language>en</language>" in xml
        assert "<title>Alpha</title>" in xml
        assert "<title>Beta</title>" in xml
        assert "<link>https://example.com/a</link>" in xml
        assert "<link>https://example.com/b</link>" in xml
        assert "pubDate" in xml
    def test_truncates_to_20_items(self) -> None:
        posts = [_post(slug=f"p{i:02d}") for i in range(25)]
        xml = render_rss_feed(posts, SITE, "https://x")
        assert xml.count("<item>") == 20
    def test_escapes_special_characters_in_title(self) -> None:
        xml = render_rss_feed(
            [_post(title="A & B <C>", slug="x")],
            SITE,
            "https://x",
        )
        assert "A &amp; B &lt;C&gt;" in xml
    def test_no_pub_date_when_date_missing(self) -> None:
        # No `date` in metadata → date_string is None → no <pubDate> in the item.
        xml = render_rss_feed([_post(post_date="")], SITE, "https://x")
        item_block = xml.split("<item>")[1].split("</item>")[0]
        assert "<pubDate>" not in item_block
    def test_dc_creator_present_when_fediverse_set(self) -> None:
        xml = render_rss_feed(
            [_post(fediverse_creator="@alice@example.com")],
            SITE,
            "https://x",
        )
        assert "<dc:creator>@alice@example.com</dc:creator>" in xml
    def test_no_dc_creator_when_fediverse_empty(self) -> None:
        xml = render_rss_feed([_post()], SITE, "https://x")
        assert "<dc:creator>" not in xml
 class TestRenderJSONFeed:
    def test_basic_shape(self) -> None:
        feed = render_json_feed([_post(slug="a", tags=["intro"])], SITE, "https://x")
        assert feed["version"] == "https://jsonfeed.org/version/1.1"
        assert feed["title"] == "My Blog"
        assert feed["home_page_url"] == "https://x"
        assert feed["feed_url"] == "https://x/api/volumen/feed.json"
        assert feed["language"] == "en"
        assert feed["items"][0]["id"] == "https://x/a"
        assert feed["items"][0]["url"] == "https://x/a"
        assert feed["items"][0]["title"] == "Hello"
        assert feed["items"][0]["tags"] == ["intro"]
    def test_filters_empty_authors_and_tags(self) -> None:
        # Default _post has no fediverse handle, no tags. ``summary`` is also
        # present (it falls back to the derived excerpt from ``body``).
        feed = render_json_feed([_post()], SITE, "https://x")
        item = feed["items"][0]
        assert "authors" not in item
        assert "tags" not in item
    def test_author_from_site_wide_fediverse(self) -> None:
        site_with_creator = {**SITE, "fediverse_creator": "@site@example.com"}
        feed = render_json_feed([_post()], site_with_creator, "https://x")
        assert feed["items"][0]["authors"] == [{"name": "@site@example.com"}]
    def test_author_from_post_overrides_site(self) -> None:
        site_with_creator = {**SITE, "fediverse_creator": "@site@example.com"}
        feed = render_json_feed(
            [_post(fediverse_creator="@post@example.com")],
            site_with_creator,
            "https://x",
        )
        assert feed["items"][0]["authors"] == [{"name": "@post@example.com"}]
 class TestRenderSitemap:
    def test_basic_urlset(self) -> None:
        xml = render_sitemap([_post(slug="x"), _post(slug="y")], "https://x")
        assert "<urlset" in xml
        assert "<loc>https://x/x</loc>" in xml
        assert "<loc>https://x/y</loc>" in xml
        assert "</urlset>" in xml
    def test_lastmod_when_date_present(self) -> None:
        xml = render_sitemap([_post()], "https://x")
        assert "<lastmod>2026-01-15</lastmod>" in xml
    def test_no_lastmod_when_date_empty(self) -> None:
        # When post_date="" is passed, _post() omits "date" → date_string is None
        # → no <lastmod> rendered.
        xml = render_sitemap([_post(post_date="")], "https://x")
        url_block = xml.split("<url>")[1].split("</url>")[0]
        assert "<lastmod>" not in url_block
 class TestDateHelpers:
    def test_rfc822_from_date_object(self) -> None:
        out = _rfc822_date(date(2026, 1, 15))
        assert "2026" in out and "GMT" in out
    def test_rfc822_from_iso_string(self) -> None:
        out = _rfc822_date("2026-01-15")
        assert "2026" in out
        assert "GMT" in out
    def test_rfc822_invalid_string_returns_as_is(self) -> None:
        assert _rfc822_date("not-a-date") == "not-a-date"
    def test_iso_none(self) -> None:
        assert _iso_date(None) is None
    def test_iso_date_object(self) -> None:
        assert _iso_date(date(2026, 1, 15)) == "2026-01-15"
    def test_iso_valid_string_passes_through(self) -> None:
        assert _iso_date("2026-01-15") == "2026-01-15"
    def test_iso_invalid_string_returns_as_is(self) -> None:
        assert _iso_date("not-a-date") == "not-a-date"
@@ -0,0 +1,78 @@
 """Tests for Frontmatter parser — TOML frontmatter parsing and serialisation."""
 from __future__ import annotations
 from volumen.frontmatter import dump, parse
 class TestParse:
    def test_parse_extracts_metadata_and_body(self) -> None:
        content = '+++\ntitle = "Hello"\ntags = ["a", "b"]\n+++\n\nBody text.\n'
        metadata, body = parse(content)
        assert metadata["title"] == "Hello"
        assert metadata["tags"] == ["a", "b"]
        assert body == "Body text.\n"
    def test_parse_without_frontmatter(self) -> None:
        metadata, body = parse("# Just markdown\n")
        assert metadata == {}
        assert body == "# Just markdown\n"
    def test_parse_without_closing_delimiter(self) -> None:
        content = '+++\ntitle = "x"\n\nbody'
        metadata, body = parse(content)
        assert metadata == {}
        assert body == content
    def test_parse_empty_frontmatter(self) -> None:
        content = "+++\n+++\n\nBody here.\n"
        metadata, body = parse(content)
        assert metadata == {}
        assert body == "Body here.\n"
    def test_parse_draft_false(self) -> None:
        content = '+++\ntitle = "X"\ndraft = false\n+++\n\nBody\n'
        metadata, body = parse(content)
        assert metadata["draft"] is False
    def test_parse_nested_tables(self) -> None:
        content = '+++\n[meta]\ntitle = "X"\n+++\n\nBody\n'
        metadata, body = parse(content)
        assert metadata["meta"]["title"] == "X"
    def test_parse_normalises_crlf(self) -> None:
        metadata, body = parse('+++\r\ntitle = "x"\r\n+++\r\n\r\nBody\r\n')
        assert metadata["title"] == "x"
        assert body == "Body\n"
 class TestDump:
    def test_dump_produces_valid_frontmatter(self) -> None:
        result = dump({"title": "Hello", "tags": ["a"]}, "Body text.\n")
        assert result.startswith("+++\n")
        assert "+++\n\n" in result
        assert "Body text." in result
    def test_dump_empty_metadata(self) -> None:
        result = dump({}, "Just body.\n")
        assert "+++" in result
        assert "Just body." in result
    def test_round_trip(self) -> None:
        metadata = {"title": "Hello", "tags": ["intro"], "draft": False}
        dumped = dump(metadata, "Hello **world**.")
        parsed_meta, parsed_body = parse(dumped)
        assert parsed_meta == metadata
        assert parsed_body.strip() == "Hello **world**."
    def test_round_trip_with_empty_metadata(self) -> None:
        dumped = dump({}, "Just body.\n")
        parsed_meta, parsed_body = parse(dumped)
        assert parsed_meta == {}
        assert parsed_body.strip() == "Just body."
    def test_round_trip_preserves_dates(self) -> None:
        metadata = {"title": "X", "date": "2026-01-15"}
        dumped = dump(metadata, "Body\n")
        parsed_meta, _ = parse(dumped)
        assert parsed_meta["date"] == "2026-01-15"
@@ -0,0 +1,461 @@
 """Tests for the first-run bootstrap installer (system and per-user)."""
 from __future__ import annotations
 import contextlib
 import json
 import re
 import sys
 from pathlib import Path
 from unittest import mock
 import pytest
 from volumen import installer
 from volumen.cli import main
 from volumen.config import Config
 SYSTEM_DIR = Path("/etc/volumen")
 SYSTEM_USERS_FILE = Path("/var/lib/volumen/users.toml")
 # --- 1. system_install produces the expected config substitutions -----------
 class TestSystemInstall:
    def test_writes_config_with_expected_substitutions(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        content_dir = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        result = installer.system_install(
            config_path=config_path,
            content_dir=content_dir,
            users_file=users_file,
            service_user="volumen",
            admin_password="TopSecret!",
        )
        assert result.config_path == config_path
        text = config_path.read_text()
        assert re.search(r'^host = "::1"', text, re.MULTILINE) is not None
        assert re.search(r'^env = "production"', text, re.MULTILINE) is not None
        assert re.search(r"^trust_proxy = true", text, re.MULTILINE) is not None
        assert re.search(r"^cookie_secure = true", text, re.MULTILINE) is not None
        assert f'content_dir = "{content_dir}"' in text
        assert f'users_file = "{users_file}"' in text
        assert content_dir.is_dir()
        assert (content_dir / "media").is_dir()
    def test_writes_valid_scrypt_password_hash(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        result = installer.system_install(
            config_path=config_path,
            content_dir=tmp_path / "posts",
            users_file=tmp_path / "users.toml",
            admin_password="TopSecret!",
        )
        text = config_path.read_text()
        m = re.search(r'^password_hash = "(.+)"', text, re.MULTILINE)
        assert m is not None
        encoded = m.group(1)
        assert encoded == result.password_hash
        assert encoded.startswith("scrypt$16384$8$1$")
        # Verify against password.
        from volumen.password import verify_password
        assert verify_password("TopSecret!", encoded) is True
    def test_writes_long_hex_session_key(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        result = installer.system_install(
            config_path=config_path,
            content_dir=tmp_path / "posts",
            users_file=tmp_path / "users.toml",
            admin_password="whatever",
        )
        text = config_path.read_text()
        m = re.search(r'^session_key = "([0-9a-f]+)"', text, re.MULTILINE)
        assert m is not None
        assert len(m.group(1)) >= 128  # 64 bytes hex-encoded
        assert m.group(1) == result.session_key
    def test_config_round_trips_through_config_load(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        posts = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        installer.system_install(
            config_path=config_path,
            content_dir=posts,
            users_file=users_file,
            admin_password="TopSecret!",
        )
        loaded = Config.load(path=str(config_path))
        assert loaded.content_dir == str(posts)
        assert loaded.users_file == str(users_file)
        assert loaded.host == "::1"
        assert loaded.env == "production"
        assert loaded.trust_proxy is True
        assert loaded.cookie_secure is True
        assert loaded.admin["password_hash"].startswith("scrypt$")
        assert len(loaded.admin["session_key"]) >= 128
    def test_existing_config_is_not_overwritten_without_force(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        original = 'host = "1.2.3.4"\nport = 1234\n'
        config_path.write_text(original)
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        result = installer.system_install(
            config_path=config_path,
            content_dir=tmp_path / "posts",
            users_file=tmp_path / "users.toml",
            admin_password="TopSecret!",
        )
        # File unchanged.
        assert config_path.read_text() == original
        # Result carries a sentinel message and no fresh password_hash.
        assert any("leaving untouched" in m for m in result.messages)
        assert result.password_hash == ""
    def test_force_makes_backup_with_original_content(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        original = 'host = "1.2.3.4"\nport = 1234\n'
        config_path.write_text(original)
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        installer.system_install(
            config_path=config_path,
            content_dir=tmp_path / "posts",
            users_file=tmp_path / "users.toml",
            admin_password="TopSecret!",
            force=True,
        )
        backups = list(tmp_path.glob("config.toml.bak.*.toml"))
        assert len(backups) == 1
        assert backups[0].read_text() == original
        # New content must round-trip.
        loaded = Config.load(path=str(config_path))
        assert loaded.host == "::1"
    def test_ensure_user_only_runs_when_user_missing(
        self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
    ) -> None:
        getpwnam_log: list[str] = []
        run_log: list[list[str]] = []
        def fake_getpwnam(name: str) -> object:
            getpwnam_log.append(name)
            raise KeyError(name)
        def fake_run(cmd: list[str], *args: object, **kwargs: object) -> object:
            run_log.append(list(cmd))
            return object()
        # Redirect the home-dir creation away from /var/lib so the test
        # can run unprivileged without hitting real root.
        fake_home = tmp_path / "fakehome"
        monkeypatch.setattr(installer, "DEFAULT_SERVICE_HOME", fake_home)
        with monkeypatch.context() as m:
            m.setattr(installer.pwd, "getpwnam", fake_getpwnam)
            m.setattr(installer, "_is_root", lambda: True)
            m.setattr(installer.subprocess, "run", fake_run)
            created = installer._ensure_user("volumen")
        assert created is True
        assert getpwnam_log == ["volumen"]
        # useradd should fire exactly once.
        assert any(cmd[:1] == ["useradd"] for cmd in run_log)
        # Home dir was created at our redirected location.
        assert fake_home.is_dir()
        # If the user exists, no useradd is run.
        getpwnam_log.clear()
        run_log.clear()
        class _Pwnam:
            pw_uid = 1234
        with monkeypatch.context() as m:
            m.setattr(installer.pwd, "getpwnam", lambda name: _Pwnam())
            m.setattr(installer.subprocess, "run", fake_run)
            created = installer._ensure_user("volumen")
        assert created is False
        assert run_log == []
        # If not root, even a missing user doesn't trigger useradd.
        getpwnam_log.clear()
        run_log.clear()
        with monkeypatch.context() as m:
            m.setattr(installer.pwd, "getpwnam", fake_getpwnam)
            m.setattr(installer, "_is_root", lambda: False)
            m.setattr(installer.subprocess, "run", fake_run)
            created = installer._ensure_user("volumen")
        assert created is False
        assert run_log == []
    def test_chown_chmod_skipped_silently_when_not_root(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        posts = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        # Pretend we're not root — the chown/chmod helpers must no-op rather
        # than raise, and no subprocess is spawned for useradd/systemctl.
        monkeypatch.setattr(installer, "_is_root", lambda: False)
        run_log: list[list[str]] = []
        monkeypatch.setattr(
            installer.subprocess,
            "run",
            lambda cmd, *a, **kw: run_log.append(list(cmd)) or object(),
        )
        result = installer.system_install(
            config_path=config_path,
            content_dir=posts,
            users_file=users_file,
            admin_password="TopSecret!",
        )
        assert config_path.is_file()
        assert posts.is_dir()
        # No subprocess calls touched the system at all.
        assert run_log == []
        # Chmod was applied as a no-op (mode unchanged).
        assert oct(config_path.stat().st_mode & 0o777) != oct(0o600)  # default
        # Result is a valid InstallResult.
        assert result.config_path == config_path
    def test_install_service_writes_systemd_unit_and_calls_systemctl(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        content_dir = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        systemd_unit = tmp_path / "volumen.service"
        cmd_log: list[list[str]] = []
        class _Pwnam:
            pw_uid = 1234
        class _Grnam:
            gr_gid = 1234
        def fake_getpwnam(name: str) -> object:
            return _Pwnam()
        def fake_getgrnam(name: str) -> object:
            return _Grnam()
        def fake_which(name: str) -> str | None:
            return "/usr/local/bin/volumen" if name == "volumen" else None
        def fake_run(cmd: list[str], *args: object, **kwargs: object) -> object:
            cmd_log.append(list(cmd))
            return object()
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        monkeypatch.setattr(installer, "_is_root", lambda: True)
        monkeypatch.setattr(installer.pwd, "getpwnam", fake_getpwnam)
        monkeypatch.setattr(installer.grp, "getgrnam", fake_getgrnam)
        monkeypatch.setattr(installer.shutil, "which", fake_which)
        monkeypatch.setattr(installer.subprocess, "run", fake_run)
        monkeypatch.setattr(installer, "SYSTEMD_UNIT_PATH", systemd_unit)
        result = installer.system_install(
            config_path=config_path,
            content_dir=content_dir,
            users_file=users_file,
            admin_password="TopSecret!",
            install_service=True,
            enable_service=True,
        )
        assert systemd_unit.is_file()
        unit_text = systemd_unit.read_text()
        assert "/usr/local/bin/volumen" in unit_text
        assert "serve --config" in unit_text
        assert f"--config {config_path}" in unit_text
        assert f"--content {content_dir}" in unit_text
        assert "User=volumen" in unit_text
        assert "NoNewPrivileges=true" in unit_text
        assert "ProtectSystem=strict" in unit_text
        assert result.systemd_unit_path == systemd_unit
        assert ["systemctl", "daemon-reload"] in cmd_log
        assert ["systemctl", "enable", "--now", "volumen"] in cmd_log
 # --- 2. user_install ---------------------------------------------------------
 class TestUserInstall:
    def test_writes_config_under_user_path(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
    ) -> None:
        config_path = tmp_path / "config.toml"
        content_dir = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        monkeypatch.setattr(installer, "_ensure_user", lambda name: False)
        result = installer.user_install(
            config_path=config_path,
            content_dir=content_dir,
            users_file=users_file,
            admin_password="TopSecret!",
        )
        assert result.service_user is None
        assert result.systemd_unit_path is None
        text = config_path.read_text()
        assert re.search(r'^env = "development"', text, re.MULTILINE) is not None
        assert re.search(r"^cookie_secure = false", text, re.MULTILINE) is not None
        assert config_path.exists()
        assert content_dir.is_dir()
    def test_rejects_install_service(self, tmp_path: Path) -> None:
        with pytest.raises(installer.InstallerError):
            installer.user_install(
                config_path=tmp_path / "config.toml",
                content_dir=tmp_path / "posts",
                users_file=tmp_path / "users.toml",
                admin_password="x",
                install_service=True,
            )
 # --- 3. _mutate_config_text --------------------------------------------------
 class TestMutateConfigText:
    def test_substitutes_six_keys_without_disturbing_comments(self) -> None:
        text = (
            'host = "::"\n'
            'env = "development"\n'
            "trust_proxy = false\n"
            "cookie_secure = false\n"
            'content_dir = "/old"\n'
            'users_file = "/old/users.toml"\n'
            'password_hash = ""\n'
            'session_key = ""\n'
        )
        out = installer._mutate_config_text(
            text,
            host="::1",
            env="production",
            trust_proxy=True,
            cookie_secure=True,
            content_dir="/new",
            users_file="/new/users.toml",
        )
        assert 'host = "::1"' in out
        assert 'env = "production"' in out
        assert "trust_proxy = true" in out
        assert "cookie_secure = true" in out
        assert 'content_dir = "/new"' in out
        assert 'users_file = "/new/users.toml"' in out
    def test_injects_password_hash_and_session_key(self) -> None:
        text = 'host = "::"\npassword_hash = ""\nsession_key = ""\n'
        out = installer._mutate_config_text(
            text,
            password_hash="scrypt$abc",
            session_key="deadbeef" * 16,
        )
        assert 'password_hash = "scrypt$abc"' in out
        assert 'session_key = "deadbeef"' * 4 not in out  # sentinel
        assert 'session_key = "' in out
 # --- 4. CLI status -----------------------------------------------------------
 class TestStatus:
    def test_status_json_reports_all_fields(
        self, tmp_path: Path, monkeypatch: pytest.MonkeyPatch, capsys: pytest.CaptureFixture[str]
    ) -> None:
        from volumen import installer as inst_mod
        # Pre-create a config so the inspector finds something.
        posts = tmp_path / "posts"
        users_file = tmp_path / "users.toml"
        posts.mkdir()
        users_file.touch()
        config_path = tmp_path / "config.toml"
        monkeypatch.setattr(inst_mod, "_ensure_user", lambda name: False)
        installer.system_install(
            config_path=config_path,
            content_dir=posts,
            users_file=users_file,
            admin_password="TopSecret!",
        )
        monkeypatch.setattr(inst_mod, "SYSTEMD_UNIT_PATH", tmp_path / "volumen.service")
        # Force systemctl to a known "unknown" branch.
        monkeypatch.setattr(inst_mod.shutil, "which", lambda name: None)
        # Inject a users.toml entry for "admin".
        users_file.write_text(
            '[[users]]\nusername = "admin"\npassword_hash = "scrypt$x"\nrole = "admin"\n'
        )
        with (
            mock.patch.object(
                sys,
                "argv",
                [
                    "volumen",
                    "status",
                    "--config",
                    str(config_path),
                    "--data",
                    str(posts),
                    "--users-file",
                    str(users_file),
                    "--json",
                ],
            ),
            contextlib.suppress(SystemExit),
        ):
            main()
        captured = capsys.readouterr()
        assert captured.out.strip().startswith("{")
        info = json.loads(captured.out)
        for key in (
            "config_path",
            "data_dir",
            "users_file",
            "config_exists",
            "data_dir_exists",
            "users_file_exists",
            "password_hash_set",
            "session_key_ok",
            "systemd_unit_installed",
            "service_active",
            "admin_user_present",
            "issues",
        ):
            assert key in info
        assert info["config_exists"] is True
        assert info["password_hash_set"] is True
        assert info["session_key_ok"] is True
        assert info["admin_user_present"] is True
 class TestCLISystemdLocalRefuse:
    def test_local_with_systemd_exits_nonzero(self, capsys: pytest.CaptureFixture[str]) -> None:
        exit_code = 0
        with mock.patch.object(
            sys,
            "argv",
            ["volumen", "init", "--local", "--systemd", "--admin-password", "x"],
        ):
            try:
                main()
            except SystemExit as exc:
                exit_code = exc.code if isinstance(exc.code, int) else 1
        assert exit_code == 2
        captured = capsys.readouterr()
        assert "--systemd" in captured.err
@@ -0,0 +1,80 @@
 """Tests for Markdown renderer."""
 from __future__ import annotations
 from volumen.markdown import render
 class TestBasicRendering:
    def test_renders_bold(self) -> None:
        assert "<strong>bold</strong>" in render("**bold**")
    def test_renders_italic(self) -> None:
        result = render("*italic*")
        assert "<em>italic</em>" in result
    def test_renders_heading(self) -> None:
        assert "<h1" in render("# Title")
    def test_renders_paragraph(self) -> None:
        result = render("Simple paragraph.")
        assert "<p>" in result
    def test_renders_link(self) -> None:
        result = render("[link](https://example.com)")
        assert '<a href="https://example.com"' in result
    def test_renders_unordered_list(self) -> None:
        result = render("- one\n- two\n")
        assert "<ul>" in result
        assert "<li>one</li>" in result
 class TestGFMFeatures:
    def test_renders_gfm_table(self) -> None:
        table = "| A | B |\n|---|---|\n| 1 | 2 |\n"
        assert "<table" in render(table)
    def test_renders_fenced_code_block(self) -> None:
        code = "```python\nprint(1)\n```\n"
        html = render(code)
        assert "<pre" in html or "<code" in html
    def test_renders_task_list(self) -> None:
        md = "- [x] Done\n- [ ] Todo\n"
        result = render(md)
        assert "checkbox" in result.lower() or "checked" in result.lower()
    def test_renders_strikethrough(self) -> None:
        result = render("~~strike~~")
        assert "<del>" in result
 class TestFigureWrapping:
    def test_image_with_title_wrapped_in_figure(self) -> None:
        result = render('![alt](url "caption")')
        assert "<figure>" in result
    def test_image_without_title_no_wrapping(self) -> None:
        result = render("![alt](url)")
        assert "<figure>" not in result
    def test_figure_includes_figcaption(self) -> None:
        result = render('![alt](url "caption")')
        assert "<figcaption>" in result
        assert "caption" in result
 class TestEdgeCases:
    def test_empty_input(self) -> None:
        result = render("")
        assert isinstance(result, str)
        assert result == ""
    def test_plain_text(self) -> None:
        result = render("Hello world")
        assert "Hello world" in result
    def test_html_passthrough(self) -> None:
        result = render("<span>inline</span>")
        assert "<span>" in result
@@ -0,0 +1,23 @@
 """Import smoke tests for the split application modules."""
 from __future__ import annotations
 from volumen.admin_auth_routes import router as auth_router
 from volumen.admin_media_routes import router as media_router
 from volumen.admin_post_routes import router as post_router
 from volumen.admin_settings_routes import router as settings_router
 from volumen.app import create_app
 from volumen.server import create_app as legacy_create_app
 def test_split_modules_import_and_construct_app(config, store) -> None:
    assert legacy_create_app is create_app
    assert auth_router.routes
    assert post_router.routes
    assert settings_router.routes
    assert media_router.routes
    app = create_app(config, store)
    assert app.state.config is config
    assert app.state.store is store
@@ -0,0 +1,53 @@
 """Tests for Password hashing and verification."""
 from __future__ import annotations
 from volumen.password import hash_password, verify_password
 class TestHash:
    def test_hash_produces_string(self) -> None:
        result = hash_password("secret")
        assert isinstance(result, str)
    def test_hash_format(self) -> None:
        result = hash_password("pw")
        assert result.startswith("scrypt$16384$8$1$")
    def test_hash_is_deterministic_in_format(self) -> None:
        result = hash_password("pw")
        parts = result.split("$")
        assert len(parts) == 6
        assert parts[0] == "scrypt"
        assert parts[1] == "16384"
        assert parts[2] == "8"
        assert parts[3] == "1"
 class TestVerify:
    def test_verify_correct_password(self) -> None:
        encoded = hash_password("s3cret")
        assert verify_password("s3cret", encoded) is True
    def test_verify_wrong_password(self) -> None:
        encoded = hash_password("s3cret")
        assert verify_password("nope", encoded) is False
    def test_verify_empty_string(self) -> None:
        # ``hash_password`` rejects empty input; verify_password with an
        # empty candidate returns False for any well-formed hash.
        encoded = hash_password("some-pw")
        assert verify_password("", encoded) is False
    def test_verify_malformed_input(self) -> None:
        assert verify_password("x", "not-a-hash") is False
        assert verify_password("x", "") is False
    def test_verify_tampered_hash(self) -> None:
        encoded = hash_password("s3cret")
        tampered = encoded[:-1] + ("X" if encoded[-1] != "X" else "Y")
        assert verify_password("s3cret", tampered) is False
    def test_verify_empty_password_against_hash(self) -> None:
        encoded = hash_password("secret")
        assert verify_password("", encoded) is False
@@ -0,0 +1,207 @@
 """Tests for Post model — parsing, metadata, rendering, serialisation."""
 from __future__ import annotations
 from datetime import date
 import pytest
 from volumen.post import Post
 class TestPostParsing:
    def test_parse_builds_post(self) -> None:
        content = (
            "+++\n"
            'title = "Hello"\n'
            'slug = "hello"\n'
            'lang = "en"\n'
            'tags = ["intro", "ruby"]\n'
            "date = 2026-01-15\n"
            "draft = true\n"
            "+++\n\n"
            "First paragraph.\n"
        )
        post = Post.parse(content)
        assert post.slug == "hello"
        assert post.title == "Hello"
        assert post.lang == "en"
        assert post.tags == ["intro", "ruby"]
        assert post.draft is True
        assert post.date_string == "2026-01-15"
    def test_parse_preserves_body_newlines(self) -> None:
        content = '+++\ntitle = "X"\nslug = "x"\n+++\n\nLine1\n\nLine2\n'
        post = Post.parse(content)
        assert "Line1" in post.body
        assert "Line2" in post.body
 class TestExcerpt:
    def test_excerpt_from_metadata(self) -> None:
        post = Post(metadata={"slug": "x", "excerpt": "Custom blurb."}, body="Long body text here.")
        assert post.excerpt == "Custom blurb."
    def test_excerpt_derived_from_body(self) -> None:
        post = Post(metadata={"slug": "x"}, body="# Heading\n\nThe body paragraph.")
        assert post.excerpt == "The body paragraph."
    def test_derived_excerpt_strips_html_tags(self) -> None:
        post = Post(metadata={"slug": "x"}, body="<strong>Bold</strong> and <em>italic</em>.")
        assert post.excerpt == "Bold and italic."
    def test_derived_excerpt_skips_heading(self) -> None:
        post = Post(metadata={"slug": "x"}, body="# Heading\n\nText here.")
        assert post.excerpt == "Text here."
    def test_derived_excerpt_empty_body(self) -> None:
        post = Post(metadata={"slug": "x"}, body="")
        assert post.excerpt == ""
    def test_derived_excerpt_truncates_long(self) -> None:
        long_text = "A" * 300
        post = Post(metadata={"slug": "x"}, body=long_text)
        assert len(post.excerpt) <= 203  # limit + ellipsis
        assert post.excerpt.endswith("\u2026")
 class TestSummaryDict:
    def test_summary_shape(self) -> None:
        post = Post(metadata={"slug": "x", "title": "X"}, body="Body")
        summary = post.summary()
        assert summary["url"] == "/api/volumen/posts/x"
        assert summary["title"] == "X"
        assert summary["slug"] == "x"
    def test_summary_includes_cover_and_reading_time(self) -> None:
        post = Post(metadata={"slug": "x", "cover": "/media/c.png"}, body="word " * 250)
        assert post.summary()["cover"] == "/media/c.png"
        assert post.summary()["reading_time"] == 2
    def test_summary_includes_fediverse_creator(self) -> None:
        post = Post(
            metadata={"slug": "x", "fediverse_creator": "@user@example.social"},
            body="body",
        )
        assert post.summary()["fediverse_creator"] == "@user@example.social"
    def test_summary_omits_fediverse_creator_when_absent(self) -> None:
        post = Post(metadata={"slug": "x"}, body="body")
        assert post.summary()["fediverse_creator"] is None
 class TestDetailDict:
    def test_detail_includes_rendered_html(self) -> None:
        post = Post(metadata={"slug": "x"}, body="**hi**")
        assert "<strong>hi</strong>" in post.detail()["html"]
    def test_detail_includes_body(self) -> None:
        post = Post(metadata={"slug": "x"}, body="raw body")
        assert post.detail()["body"] == "raw body"
 class TestReadingTime:
    def test_reading_time_is_at_least_one(self) -> None:
        post = Post(metadata={"slug": "x"}, body="short")
        assert post.reading_time == 1
    def test_reading_time_200_words(self) -> None:
        post = Post(metadata={"slug": "x"}, body="word " * 200)
        assert post.reading_time == 1
    def test_reading_time_201_words(self) -> None:
        post = Post(metadata={"slug": "x"}, body="word " * 201)
        assert post.reading_time == 2
 class TestScheduled:
    def test_scheduled_post_when_publish_at_is_future(self) -> None:
        future = date.today().replace(year=date.today().year + 1)
        post = Post(metadata={"publish_at": future})
        assert post.scheduled is True
    def test_scheduled_post_when_publish_at_is_past(self) -> None:
        past = date(2000, 1, 1)
        post = Post(metadata={"publish_at": past})
        assert post.scheduled is False
    def test_post_without_publish_at_is_not_scheduled(self) -> None:
        post = Post(metadata={})
        assert post.scheduled is False
 class TestFediverseCreator:
    def test_fediverse_creator_returns_metadata_value(self) -> None:
        post = Post(metadata={"slug": "x", "fediverse_creator": "@user@example.social"})
        assert post.fediverse_creator == "@user@example.social"
    def test_fediverse_creator_is_none_when_missing(self) -> None:
        post = Post(metadata={"slug": "x"})
        assert post.fediverse_creator is None
    def test_fediverse_creator_is_none_when_blank(self) -> None:
        post = Post(metadata={"slug": "x", "fediverse_creator": "   "})
        assert post.fediverse_creator is None
    @pytest.mark.parametrize(
        "handle",
        [
            "@ada@lovelace.org",
            "@user@example.com",
            "  @user@example.com  ",
        ],
    )
    def test_valid_fediverse_creator_accepts_well_formed(self, handle: str) -> None:
        post = Post(metadata={"slug": "x", "fediverse_creator": handle})
        assert post.valid_fediverse_creator is True
    @pytest.mark.parametrize(
        "handle",
        [
            "ada@example.com",
            "@only-one-at",
            "@user@example.com extra",
            "@user@",
            "@@example.com",
        ],
    )
    def test_valid_fediverse_creator_rejects_malformed(self, handle: str) -> None:
        post = Post(metadata={"slug": "x", "fediverse_creator": handle})
        assert post.valid_fediverse_creator is False
 class TestDateString:
    def test_date_string_from_string(self) -> None:
        post = Post(metadata={"date": "2026-01-15"})
        assert post.date_string == "2026-01-15"
    def test_date_string_from_date(self) -> None:
        post = Post(metadata={"date": date(2026, 1, 15)})
        assert post.date_string == "2026-01-15"
    def test_date_string_none_when_missing(self) -> None:
        post = Post(metadata={})
        assert post.date_string is None
 class TestTranslations:
    def test_translations_from_metadata(self) -> None:
        post = Post(metadata={"slug": "x", "translations": {"cs": "ahoj", "de": "hallo"}})
        assert post.translations == {"cs": "ahoj", "de": "hallo"}
    def test_translations_empty_when_missing(self) -> None:
        post = Post(metadata={"slug": "x"})
        assert post.translations == {}
 class TestFileSerialization:
    def test_round_trip(self) -> None:
        metadata = {"slug": "hello", "title": "Hello", "tags": ["intro"], "draft": False}
        post = Post(metadata=metadata, body="Hello **world**.\n")
        serialised = post.to_file()
        reloaded = Post.parse(serialised)
        assert reloaded.slug == "hello"
        assert reloaded.title == "Hello"
        assert reloaded.tags == ["intro"]
        assert reloaded.draft is False
        assert "Hello **world**." in reloaded.body
@@ -0,0 +1,150 @@
 """Coverage tests for ``Post`` properties — non-happy-path branches."""
 from __future__ import annotations
 from datetime import date, timedelta
 from volumen.post import Post
 def _post(metadata: dict[str, object] | None = None, body: str = "") -> Post:
    return Post(metadata=metadata, body=body)
 class TestTagsProperty:
    def test_tags_default_is_empty(self) -> None:
        assert _post().tags == []
    def test_tags_list_of_strings(self) -> None:
        assert _post({"tags": ["python", "blog"]}).tags == ["python", "blog"]
    def test_tags_non_list_coerces_to_empty(self) -> None:
        # When ``tags`` is set to something that isn't a list, the property
        # returns an empty list rather than raising.
        assert _post({"tags": "python"}).tags == []
        assert _post({"tags": 42}).tags == []
        assert _post({"tags": None}).tags == []
 class TestTranslationsProperty:
    def test_default_is_empty(self) -> None:
        assert _post().translations == {}
    def test_dict_coerces_values_to_strings(self) -> None:
        out = _post({"translations": {"cs": "cs-slug", "de": "de-slug"}}).translations
        assert out == {"cs": "cs-slug", "de": "de-slug"}
    def test_non_dict_returns_empty(self) -> None:
        assert _post({"translations": ["cs", "de"]}).translations == {}
        assert _post({"translations": "cs"}).translations == {}
 class TestFediverseCreator:
    def test_none(self) -> None:
        assert _post().fediverse_creator is None
    def test_empty_string_is_none(self) -> None:
        assert _post({"fediverse_creator": ""}).fediverse_creator is None
        assert _post({"fediverse_creator": "   "}).fediverse_creator is None
    def test_valid_fediverse_creator_regex(self) -> None:
        p = _post({"fediverse_creator": "@alice@example.com"})
        assert p.fediverse_creator == "@alice@example.com"
        assert p.valid_fediverse_creator is True
    def test_invalid_fediverse_creator(self) -> None:
        # No `@host` part → regex doesn't match.
        p = _post({"fediverse_creator": "alice"})
        assert p.fediverse_creator == "alice"
        assert p.valid_fediverse_creator is False
 class TestPublishAt:
    def test_none(self) -> None:
        assert _post().publish_at is None
    def test_date_object(self) -> None:
        assert _post({"publish_at": date(2026, 6, 1)}).publish_at == date(2026, 6, 1)
    def test_iso_string(self) -> None:
        assert _post({"publish_at": "2026-06-01"}).publish_at == date(2026, 6, 1)
    def test_invalid_string_returns_none(self) -> None:
        assert _post({"publish_at": "not-a-date"}).publish_at is None
        assert _post({"publish_at": 12345}).publish_at is None
 class TestScheduled:
    def test_past_date_is_not_scheduled(self) -> None:
        past = (date.today() - timedelta(days=1)).isoformat()
        assert _post({"publish_at": past}).scheduled is False
    def test_future_date_is_scheduled(self) -> None:
        future = (date.today() + timedelta(days=1)).isoformat()
        assert _post({"publish_at": future}).scheduled is True
    def test_no_publish_at(self) -> None:
        assert _post().scheduled is False
 class TestReadingTime:
    def test_empty_body_minimum_one_minute(self) -> None:
        assert _post(body="").reading_time == 1
    def test_short_body(self) -> None:
        # 5 words → ceil(5/200) = 1.
        assert _post(body="one two three four five").reading_time == 1
    def test_long_body(self) -> None:
        body = " ".join(f"word{i}" for i in range(500))
        # 500 words → ceil(500/200) = 3.
        assert _post(body=body).reading_time == 3
 class TestExcerpt:
    def test_explicit_excerpt(self) -> None:
        assert _post({"excerpt": "Short summary"}).excerpt == "Short summary"
    def test_derived_from_body(self) -> None:
        # No explicit excerpt → derived from first non-heading paragraph.
        p = _post(body="Hello **world**.")
        assert "Hello" in p.excerpt
        assert "<" not in p.excerpt  # HTML stripped
        assert "*" not in p.excerpt  # Markdown stripped
    def test_derived_empty_when_only_headings(self) -> None:
        assert _post(body="# Heading\n\n## Subheading").excerpt == ""
 class TestSummaryAndDetail:
    def test_summary_includes_all_known_fields(self) -> None:
        p = _post(
            {
                "title": "T",
                "slug": "s",
                "date": "2026-01-15",
                "lang": "en",
                "tags": ["x"],
                "author": "A",
                "fediverse_creator": "@a@example.com",
                "cover": "media/c.webp",
            },
            body="Body.",
        )
        s = p.summary()
        assert s["slug"] == "s"
        assert s["title"] == "T"
        assert s["date"] == "2026-01-15"
        assert s["lang"] == "en"
        assert s["tags"] == ["x"]
        assert s["author"] == "A"
        assert s["fediverse_creator"] == "@a@example.com"
        assert s["cover"] == "media/c.webp"
        assert s["url"] == "/api/volumen/posts/s"
    def test_detail_includes_body_and_html(self) -> None:
        p = _post({"title": "T", "slug": "s"}, body="Hello.")
        d = p.detail()
        assert d["body"] == "Hello."
        assert "html" in d
        assert "<p>" in d["html"]
@@ -0,0 +1,422 @@
 """Security-focused tests: signature validation, sanitisation, cookies, headers."""
 from __future__ import annotations
 import io
 from fastapi.testclient import TestClient
 from volumen.markdown import render
 from volumen.password import (
    BLOCK_R,
    COST_N,
    KEY_LENGTH,
    PARALLEL_P,
    hash_password,
    needs_rehash,
    verify_password,
 )
 from volumen.store import (
    ALLOWED_IMAGE_EXTENSIONS,
    detect_image_extension,
    validate_image_signature,
 )
 # ---------------------------------------------------------------------------
 # Image signature validation
 # ---------------------------------------------------------------------------
 class TestImageSignature:
    def test_webp_magic_accepted(self) -> None:
        # Minimal RIFF/WEBP header (12 bytes).
        good = b"RIFF" + b"\x10\x00\x00\x00" + b"WEBP" + b"VP8 "
        assert validate_image_signature(good, ".webp") is True
    def test_webp_wrong_magic_rejected(self) -> None:
        # RIFF but not WEBP at offset 8.
        bad = b"RIFF" + b"\x10\x00\x00\x00" + b"WAVE" + b"VP8 "
        assert validate_image_signature(bad, ".webp") is False
    def test_webp_too_short_rejected(self) -> None:
        assert validate_image_signature(b"RIFF", ".webp") is False
    def test_avif_magic_accepted(self) -> None:
        # ftyp box with size=0x18, brand=avif.
        avif = b"\x00\x00\x00\x18ftyp" + b"avif" + b"\x00\x00\x00\x00" + b"avif" + b"mif1"
        assert validate_image_signature(avif, ".avif") is True
    def test_avif_alt_brand_accepted(self) -> None:
        avif = b"\x00\x00\x00\x18ftyp" + b"avis" + b"\x00\x00\x00\x00" + b"avis" + b"mif1"
        assert validate_image_signature(avif, ".avif") is True
    def test_avif_wrong_brand_rejected(self) -> None:
        avif = b"\x00\x00\x00\x18ftyp" + b"mp42" + b"\x00\x00\x00\x00" + b"mp42" + b"isom"
        assert validate_image_signature(avif, ".avif") is False
    def test_avif_too_short_rejected(self) -> None:
        assert validate_image_signature(b"\x00\x00\x00\x18ftyp", ".avif") is False
    def test_unknown_extension_rejected(self) -> None:
        assert validate_image_signature(b"anything", ".png") is False
    def test_detect_extension_webp(self) -> None:
        data = b"RIFF" + b"\x00\x00\x00\x00" + b"WEBP"
        assert detect_image_extension(data) == ".webp"
    def test_detect_extension_avif(self) -> None:
        data = b"\x00\x00\x00\x18ftypavif" + b"\x00" * 8
        assert detect_image_extension(data) == ".avif"
    def test_detect_extension_unknown(self) -> None:
        assert detect_image_extension(b"random") is None
    def test_allowed_extensions_match_policy(self) -> None:
        assert ALLOWED_IMAGE_EXTENSIONS == (".webp", ".avif")
 # ---------------------------------------------------------------------------
 # Markdown XSS sanitisation
 # ---------------------------------------------------------------------------
 class TestMarkdownSanitisation:
    def test_script_tag_stripped(self) -> None:
        rendered = render("Hello <script>alert(1)</script>world")
        assert "<script" not in rendered.lower()
        assert "alert(1)" not in rendered
    def test_inline_event_handler_stripped(self) -> None:
        rendered = render('<img src="x" onerror="alert(1)">')
        assert "onerror" not in rendered.lower()
        assert "alert" not in rendered.lower()
    def test_javascript_url_sanitised(self) -> None:
        rendered = render("[click me](javascript:alert(1))")
        assert "javascript:" not in rendered.lower()
    def test_data_image_url_kept(self) -> None:
        rendered = render("![alt](data:image/webp;base64,UklGRg==)")
        assert "<img" in rendered
    def test_figure_wrapping_still_works(self) -> None:
        rendered = render('![alt](url "caption")')
        assert "<figure>" in rendered
        assert "caption" in rendered
 # ---------------------------------------------------------------------------
 # Password hashing policy
 # ---------------------------------------------------------------------------
 class TestPasswordPolicy:
    def test_strong_hash_passes(self) -> None:
        encoded = hash_password("a-strong-password")
        assert verify_password("a-strong-password", encoded) is True
    def test_weak_params_rejected(self) -> None:
        encoded = f"scrypt$8$1$1${'A' * 24}${'B' * 32}"
        assert verify_password("anything", encoded) is False
    def test_needs_rehash_for_strong_hash(self) -> None:
        encoded = hash_password("a-strong-password")
        assert needs_rehash(encoded) is False
    def test_needs_rehash_for_weak_hash(self) -> None:
        encoded = f"scrypt$8$1$1${'A' * 24}${'B' * 32}"
        assert needs_rehash(encoded) is True
    def test_needs_rehash_for_malformed(self) -> None:
        assert needs_rehash("not-a-hash") is True
    def test_module_constants_match_policy(self) -> None:
        # Policy floor equals current implementation.
        assert COST_N >= 16384
        assert BLOCK_R >= 8
        assert PARALLEL_P >= 1
        assert KEY_LENGTH >= 32
 # ---------------------------------------------------------------------------
 # HTTP security headers and CSP
 # ---------------------------------------------------------------------------
 class TestSecurityHeaders:
    def test_global_security_headers_present(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        assert response.headers.get("x-content-type-options") == "nosniff"
        assert response.headers.get("x-frame-options") == "DENY"
        assert response.headers.get("referrer-policy") == "strict-origin-when-cross-origin"
        assert "permissions-policy" in response.headers
    def test_csp_on_public_routes(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        csp = response.headers.get("content-security-policy", "")
        assert "default-src 'self'" in csp
        # Public routes have script-src but without nonce (nonce is admin-only)
        assert "script-src 'self'" in csp
        assert "nonce-" not in csp
    def test_admin_route_has_csp_with_nonce(self, admin_client: TestClient) -> None:
        response = admin_client.get("/admin/login")
        csp = response.headers.get("content-security-policy", "")
        assert "default-src 'self'" in csp
        assert "'unsafe-inline'" not in csp
        assert "nonce-" in csp
    def test_https_only_cookie_unset_when_untrusted(self, client: TestClient) -> None:
        # Default trust_proxy=false — X-Forwarded-Proto is ignored.
        response = client.get("/admin/login")
        # No cookie issued, but the middleware must mark session_secure=False.
        assert response.status_code == 200
    def test_https_only_cookie_with_trusted_proxy(self, admin_config_dir) -> None:
        # Build a fresh app with trust_proxy=True and confirm it boots.
        from volumen.app import create_app
        from volumen.config import Config
        from volumen.store import Store
        config = Config.load(path=str(admin_config_dir / "config.toml"))
        config._data["server"]["trust_proxy"] = True  # type: ignore[index]
        store = Store(config.content_dir)
        app = create_app(config, store)
        client = TestClient(app)
        resp = client.get("/admin/login")
        assert resp.status_code == 200
    def test_cookie_secure_false_without_proxy_or_flag(self, admin_client: TestClient) -> None:
        # When trust_proxy=false and cookie_secure=false, the SessionMiddleware
        # is configured with https_only=False.
        resp = admin_client.get("/admin/login")
        assert resp.status_code == 200
 # ---------------------------------------------------------------------------
 # Config validation
 # ---------------------------------------------------------------------------
 class TestConfigValidation:
    def test_default_config_is_valid(self, config) -> None:
        # Should not raise.
        config.validate()
    def test_invalid_port_rejected(self, tmp_path) -> None:
        from volumen.config import Config
        (tmp_path / "posts").mkdir()
        cfg = Config.load(
            path="/nonexistent.toml",
            overrides={
                "users_file": str(tmp_path / "users.toml"),
                "content": str(tmp_path / "posts"),
            },
        )
        cfg._data["server"]["port"] = 999999  # type: ignore[index]
        try:
            cfg.validate()
        except Exception as exc:
            assert "port" in str(exc).lower()
        else:
            raise AssertionError("expected ConfigError")
    def test_invalid_env_rejected(self, tmp_path) -> None:
        from volumen.config import Config, ConfigError
        cfg = Config.load(
            path="/nonexistent.toml",
            overrides={"users_file": str(tmp_path / "users.toml")},
        )
        cfg._data["server"]["env"] = "staging"  # type: ignore[index]
        try:
            cfg.validate()
        except ConfigError as exc:
            assert "env" in str(exc).lower()
        else:
            raise AssertionError("expected ConfigError")
    def test_invalid_base_url_rejected(self, tmp_path) -> None:
        from volumen.config import Config, ConfigError
        cfg = Config.load(
            path="/nonexistent.toml",
            overrides={"users_file": str(tmp_path / "users.toml")},
        )
        cfg._data["site"]["base_url"] = "not-a-url"  # type: ignore[index]
        try:
            cfg.validate()
        except ConfigError as exc:
            assert "base_url" in str(exc).lower()
        else:
            raise AssertionError("expected ConfigError")
    def test_production_requires_session_key(self, tmp_path) -> None:
        from volumen.config import Config
        (tmp_path / "posts").mkdir()
        cfg = Config.load(
            path="/nonexistent.toml",
            overrides={
                "users_file": str(tmp_path / "users.toml"),
                "content": str(tmp_path / "posts"),
            },
        )
        cfg._data["server"]["env"] = "production"  # type: ignore[index]
        cfg._data["admin"]["session_key"] = ""  # type: ignore[index]
        # Validation succeeds (file is allowed) but create_app will refuse.
        cfg.validate()
 # ---------------------------------------------------------------------------
 # Session secret validation
 # ---------------------------------------------------------------------------
 class TestSessionSecret:
    def test_production_without_session_key_fails(self, config) -> None:
        from volumen.app import create_app
        from volumen.store import Store
        config._data["server"]["env"] = "production"  # type: ignore[index]
        config._data["admin"]["session_key"] = ""  # type: ignore[index]
        store = Store(config.content_dir)
        try:
            create_app(config, store)
        except RuntimeError as exc:
            assert "session_key" in str(exc)
        else:
            raise AssertionError("expected RuntimeError")
    def test_production_with_short_key_fails(self, config) -> None:
        from volumen.app import create_app
        from volumen.store import Store
        config._data["server"]["env"] = "production"  # type: ignore[index]
        config._data["admin"]["session_key"] = "tooshort"  # type: ignore[index]
        store = Store(config.content_dir)
        try:
            create_app(config, store)
        except RuntimeError as exc:
            assert "64 bytes" in str(exc)
        else:
            raise AssertionError("expected RuntimeError")
 # ---------------------------------------------------------------------------
 # Password policy helpers
 # ---------------------------------------------------------------------------
 class TestPasswordPolicyHelpers:
    def test_password_error_min_length(self) -> None:
        from volumen.auth import password_error
        assert password_error("short", min_length=10) is not None
    def test_password_error_max_length(self) -> None:
        from volumen.auth import password_error
        assert password_error("x" * 2000, min_length=10, max_length=1024) is not None
    def test_password_error_empty(self) -> None:
        from volumen.auth import password_error
        assert password_error("", min_length=10) is not None
    def test_password_error_common_rejected(self) -> None:
        from volumen.auth import password_error
        assert password_error("password", min_length=10) is not None
    def test_password_error_accepts_strong(self) -> None:
        from volumen.auth import password_error
        assert password_error("volumen-strong-pw", min_length=10) is None
 # ---------------------------------------------------------------------------
 # Store hardening
 # ---------------------------------------------------------------------------
 class _Upload:
    """Fake UploadFile for testing validate_upload."""
    content_type: str
    filename: str
    file: io.BytesIO
    def __init__(
        self, data: bytes, content_type: str = "image/webp", filename: str = "x.webp"
    ) -> None:
        self._data = data
        self.content_type = content_type
        self.filename = filename
        self.file = io.BytesIO(data)
        self._pos = 0
    async def read(self, size: int = -1) -> bytes:
        if size == -1:
            result = self._data[self._pos :]
            self._pos = len(self._data)
            return result
        result = self._data[self._pos : self._pos + size]
        self._pos += size
        return result
 class TestStoreHardening:
    def test_validate_upload_accepts_webp(self, tmp_content_dir) -> None:
        # Build a fake UploadFile-shaped object.
        good_webp = b"RIFF" + b"\x10\x00\x00\x00" + b"WEBP" + b"\x00" * 100
        import asyncio
        from volumen.upload_validation import validate_upload
        async def go() -> tuple[bytes, str]:
            return await validate_upload(_Upload(good_webp), max_bytes=10_000)
        data, ext = asyncio.run(go())
        assert ext == ".webp"
        assert data == good_webp
    def test_validate_upload_rejects_mime_mismatch(self, tmp_content_dir) -> None:
        import asyncio
        from volumen.upload_validation import validate_upload
        async def go() -> None:
            try:
                await validate_upload(
                    _Upload(b"nope", content_type="image/png", filename="x.png"),
                    max_bytes=10_000,
                )
            except Exception as exc:
                # The detail is JSON-encoded text.
                msg = str(exc)
                assert "unsupported_format" in msg or "signature" in msg.lower()
            else:
                raise AssertionError("expected HTTPException")
        asyncio.run(go())
    def test_store_upload_uses_signature_extension(self, tmp_content_dir) -> None:
        from volumen.store import Store
        store = Store(str(tmp_content_dir))
        avif_bytes = b"\x00\x00\x00\x18ftyp" + b"avif" + b"\x00" * 100
        url = store.store_upload("evil.exe", None, bytes_data=avif_bytes)
        assert url.endswith(".avif")
        assert "evil" not in url
    def test_store_upload_resolves_whitelisted_extension(self, tmp_content_dir) -> None:
        from volumen.store import Store
        store = Store(str(tmp_content_dir))
        webp_bytes = b"RIFF" + b"\x10\x00\x00\x00" + b"WEBP" + b"\x00" * 100
        # File name has an unrelated extension; signature wins.
        url = store.store_upload("cover.png", None, bytes_data=webp_bytes)
        assert url.endswith(".webp")
@@ -0,0 +1,267 @@
 """Tests for the public API endpoints."""
 from __future__ import annotations
 from datetime import date
 from pathlib import Path
 from fastapi.testclient import TestClient
 class TestSiteEndpoint:
    def test_site_endpoint(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        assert response.status_code == 200
        data = response.json()
        assert data["title"] == "My Blog"
    def test_site_endpoint_exposes_fediverse_creator_default(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        assert response.status_code == 200
        assert "fediverse_creator" in response.json()
 class TestPostsEndpoint:
    def test_posts_excludes_drafts(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts")
        data = response.json()
        assert data["total"] == 1
        assert data["posts"][0]["slug"] == "hello"
    def test_post_detail_renders_html(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts/hello")
        assert response.status_code == 200
        assert "<strong>world</strong>" in response.json()["html"]
    def test_post_not_found(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts/missing")
        assert response.status_code == 404
        assert response.json()["detail"]["error"] == "not_found"
    def test_draft_post_detail_returns_error(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts/draft")
        assert response.status_code == 404
        assert response.json()["detail"]["error"] == "draft"
 class TestTagsEndpoint:
    def test_tags_endpoint(self, client: TestClient) -> None:
        response = client.get("/api/volumen/tags")
        data = response.json()
        assert data["tags"] == [{"name": "intro", "count": 1}]
 class TestCORS:
    def test_cors_header_present(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        assert response.headers.get("access-control-allow-origin") == "*"
    def test_cors_preflight(self, client: TestClient) -> None:
        response = client.options("/api/volumen/site")
        assert response.status_code == 200
        assert response.headers["access-control-allow-origin"] == "*"
        assert "GET" in response.headers["access-control-allow-methods"]
 class TestLanguageFilter:
    def test_all_langs_post_appears_in_other_languages(
        self, client: TestClient, tmp_content_dir: Path
    ) -> None:
        (tmp_content_dir / "global.md").write_text(
            '+++\ntitle = "Global"\nlang = "en"\nall_langs = true\n+++\n\nEverywhere.\n'
        )
        response = client.get("/api/volumen/posts?lang=cs")
        slugs = [p["slug"] for p in response.json()["posts"]]
        assert "global" in slugs
        assert "hello" not in slugs
    def test_lang_filter_default_shows_default_lang_posts(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts")
        slugs = [p["slug"] for p in response.json()["posts"]]
        assert "hello" in slugs
 class TestScheduledPosts:
    def test_scheduled_post_is_hidden(self, client: TestClient, tmp_content_dir: Path) -> None:
        future = date.today().replace(year=date.today().year + 1).isoformat()
        (tmp_content_dir / "later.md").write_text(
            f'+++\ntitle = "Later"\npublish_at = {future}\n+++\n\nNot yet.\n'
        )
        response = client.get("/api/volumen/posts")
        slugs = [p["slug"] for p in response.json()["posts"]]
        assert "later" not in slugs
 class TestSearch:
    def test_search_by_title(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts?q=Hello")
        data = response.json()
        assert data["total"] == 1
        assert data["posts"][0]["slug"] == "hello"
    def test_search_by_body(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts?q=world")
        data = response.json()
        assert data["total"] == 1
    def test_search_no_match(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts?q=nonexistent")
        assert response.json()["total"] == 0
    def test_search_is_case_insensitive(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts?q=HELLO")
        assert response.json()["total"] == 1
 class TestPagination:
    def test_pagination_has_next_and_prev(self, client: TestClient, tmp_content_dir: Path) -> None:
        for i in range(5):
            (tmp_content_dir / f"post-{i}.md").write_text(
                f'+++\ntitle = "Post {i}"\n+++\n\nBody {i}.\n'
            )
        resp = client.get("/api/volumen/posts?page=1&limit=2")
        data = resp.json()
        assert data["has_next"] is True
        assert data["has_prev"] is False
        resp = client.get("/api/volumen/posts?page=2&limit=2")
        data = resp.json()
        assert data["has_next"] is True
        assert data["has_prev"] is True
        resp = client.get("/api/volumen/posts?page=3&limit=2")
        data = resp.json()
        assert data["has_next"] is False
        assert data["has_prev"] is True
 class TestRSSFeed:
    def test_feed_endpoint(self, client: TestClient) -> None:
        response = client.get("/api/volumen/feed.xml")
        assert response.status_code == 200
        ct = response.headers.get("content-type", "")
        assert "application/rss+xml" in ct or "application/xml" in ct
        body = response.text
        assert '<rss version="2.0"' in body
        assert "<title>Hello</title>" in body
        assert "Draft" not in body
        assert "<language>en</language>" in body
    def test_rss_feed_includes_dc_creator_when_set(
        self, client: TestClient, tmp_content_dir: Path
    ) -> None:
        (tmp_content_dir / "rss.md").write_text(
            '+++\ntitle = "Rss"\nslug = "rss"\n'
            'fediverse_creator = "@rss@example.com"\n+++\n\nBody.\n'
        )
        response = client.get("/api/volumen/feed.xml")
        assert "<dc:creator>@rss@example.com</dc:creator>" in response.text
        assert "xmlns:dc" in response.text
    def test_rss_feed_omits_dc_creator_when_not_set(self, client: TestClient) -> None:
        response = client.get("/api/volumen/feed.xml")
        assert "<dc:creator>" not in response.text
 class TestJSONFeed:
    def test_json_feed_endpoint(self, client: TestClient) -> None:
        response = client.get("/api/volumen/feed.json")
        assert response.status_code == 200
        data = response.json()
        assert data["version"] == "https://jsonfeed.org/version/1.1"
        assert data["title"] == "My Blog"
        assert len(data["items"]) == 1
        assert data["items"][0]["title"] == "Hello"
        assert "<strong>world</strong>" in data["items"][0]["content_html"]
        titles = [i["title"] for i in data["items"]]
        assert "Draft" not in titles
    def test_json_feed_includes_authors_from_post(
        self, client: TestClient, tmp_content_dir: Path
    ) -> None:
        (tmp_content_dir / "jsonfed.md").write_text(
            '+++\ntitle = "Jsonfed"\nslug = "jsonfed"\n'
            'fediverse_creator = "@jf@example.io"\n+++\n\nBody.\n'
        )
        response = client.get("/api/volumen/feed.json")
        items = response.json()["items"]
        item = next(i for i in items if i.get("id", "").endswith("jsonfed"))
        assert item["authors"] == [{"name": "@jf@example.io"}]
    def test_json_feed_falls_back_to_site_default_fediverse_creator(
        self, tmp_path: Path, tmp_content_dir: Path
    ) -> None:
        """When a post has no fediverse_creator, fall back to site.fediverse_creator."""
        from fastapi.testclient import TestClient
        from volumen.app import create_app
        from volumen.config import Config
        from volumen.store import Store
        config_path = tmp_path / "custom.toml"
        users_path = tmp_path / "users.toml"
        users_path.write_text("")
        config_path.write_text(
            f'content_dir = "{tmp_content_dir}"\n'
            f'users_file = "{users_path}"\n'
            "\n[site]\n"
            'fediverse_creator = "@siteowner@example.social"\n'
        )
        custom_config = Config.load(path=str(config_path))
        custom_store = Store(str(tmp_content_dir), default_lang="en")
        custom_app = create_app(custom_config, custom_store)
        custom_client = TestClient(custom_app)
        response = custom_client.get("/api/volumen/feed.json")
        assert response.status_code == 200
        item = response.json()["items"][0]
        assert "authors" in item
        assert item["authors"] == [{"name": "@siteowner@example.social"}]
 class TestSitemap:
    def test_sitemap_endpoint(self, client: TestClient) -> None:
        response = client.get("/api/volumen/sitemap.xml")
        assert response.status_code == 200
        ct = response.headers.get("content-type", "")
        assert "application/xml" in ct or "text/xml" in ct
        body = response.text
        assert "urlset" in body
        assert "<loc>https://example.com/hello</loc>" in body
        assert "draft" not in body
 class TestFediverseCreator:
    def test_post_summary_exposes_fediverse_creator(
        self, client: TestClient, tmp_content_dir: Path
    ) -> None:
        (tmp_content_dir / "attributed.md").write_text(
            '+++\ntitle = "Attributed"\nslug = "attributed"\n'
            'fediverse_creator = "@ada@lovelace.org"\n+++\n\nBody.\n'
        )
        response = client.get("/api/volumen/posts/attributed")
        assert response.status_code == 200
        assert response.json()["fediverse_creator"] == "@ada@lovelace.org"
    def test_post_summary_fediverse_creator_is_null_when_not_set(self, client: TestClient) -> None:
        response = client.get("/api/volumen/posts/hello")
        assert response.status_code == 200
        assert response.json()["fediverse_creator"] is None
    def test_posts_list_summary_exposes_fediverse_creator(
        self, client: TestClient, tmp_content_dir: Path
    ) -> None:
        (tmp_content_dir / "fed.md").write_text(
            '+++\ntitle = "Fed"\nslug = "fed"\n'
            'fediverse_creator = "@user@example.social"\n+++\n\nBody.\n'
        )
        response = client.get("/api/volumen/posts")
        fed = next(p for p in response.json()["posts"] if p["slug"] == "fed")
        assert fed["fediverse_creator"] == "@user@example.social"
 class TestCacheHeaders:
    def test_cache_control_on_api_responses(self, client: TestClient) -> None:
        response = client.get("/api/volumen/site")
        assert "cache-control" in response.headers
@@ -0,0 +1,130 @@
 """Tests for Store — post loading, saving, deleting, media handling."""
 from __future__ import annotations
 import os
 from pathlib import Path
 import pytest
 from volumen.post import Post
 from volumen.store import Store
 class TestLoading:
    def test_all_loads_every_post(self, store: Store) -> None:
        posts = store.all()
        assert len(posts) == 2  # hello.md + draft.md
    def test_slug_falls_back_to_filename(self, store: Store) -> None:
        slugs = sorted(p.slug for p in store.all())
        assert slugs == ["draft", "hello"]
    def test_lang_derived_from_subdirectory(self, tmp_path: Path) -> None:
        content = tmp_path / "posts"
        content.mkdir()
        (content / "hello.md").write_text('+++\ntitle = "Hello"\n+++\n\nBody\n')
        cs_dir = content / "cs"
        cs_dir.mkdir()
        (cs_dir / "ahoj.md").write_text('+++\ntitle = "Ahoj"\n+++\n\nTelo\n')
        st = Store(str(content), default_lang="en")
        assert st.find("ahoj").lang == "cs"
        assert st.find("hello").lang == "en"
    def test_find_returns_none_when_missing(self, store: Store) -> None:
        assert store.find("nope") is None
    def test_all_langs_post_visible_in_any_language(self, tmp_content_dir: Path) -> None:
        (tmp_content_dir / "global.md").write_text(
            '+++\ntitle = "Global"\nlang = "en"\nall_langs = true\n+++\n\nVisible everywhere.\n'
        )
        store = Store(str(tmp_content_dir), default_lang="en")
        assert store.find("global", lang="cs") is not None
        assert store.find("global", lang="en") is not None
    def test_draft_post_is_loaded(self, store: Store) -> None:
        draft = store.find("draft")
        assert draft is not None
        assert draft.draft is True
    def test_post_with_missing_slug_derived_from_path(self, tmp_content_dir: Path) -> None:
        (tmp_content_dir / "noslug.md").write_text('+++\ntitle = "No Slug"\n+++\n\nBody\n')
        store = Store(str(tmp_content_dir), default_lang="en")
        post = store.find("noslug")
        assert post is not None
        assert post.slug == "noslug"
        assert post.lang == "en"
 class TestSave:
    def test_save_new_post(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        post = Post(metadata={"slug": "newpost", "title": "New"}, body="Content")
        store.save(post)
        assert os.path.isfile(os.path.join(str(tmp_content_dir), "newpost.md"))
    def test_save_updates_existing_post(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        post = store.find("hello")
        assert post is not None
        post.body = "Updated content."
        store.save(post)
        reloaded = store.find("hello")
        assert reloaded is not None
        assert "Updated content." in reloaded.body
    def test_save_rejects_path_traversal_slug(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir))
        post = Post(metadata={"slug": "../../etc/passwd"}, body="x")
        with pytest.raises(ValueError, match="slug escapes"):
            store.save(post)
    def test_save_uses_lang_subdirectory(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        post = Post(metadata={"slug": "bonjour", "lang": "fr"}, body="x")
        store.save(post)
        assert os.path.isfile(os.path.join(str(tmp_content_dir), "fr", "bonjour.md"))
    def test_save_uses_root_for_default_language(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        post = Post(metadata={"slug": "hello-new", "lang": "en"}, body="x")
        store.save(post)
        assert os.path.isfile(os.path.join(str(tmp_content_dir), "hello-new.md"))
        assert not os.path.isfile(os.path.join(str(tmp_content_dir), "en", "hello-new.md"))
 class TestDelete:
    def test_delete_post(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        path = os.path.join(str(tmp_content_dir), "hello.md")
        assert os.path.isfile(path)
        store.delete("hello")
        assert not os.path.isfile(path)
 class TestMedia:
    def test_media_file_path_traversal_prevention(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir))
        bad = store.media_file("../etc/passwd")
        assert bad is None
    def test_media_file_nonexistent(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir))
        assert store.media_file("nonexistent.webp") is None
 class TestCacheInvalidation:
    def test_mtime_cache_invalidation(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        initial = len(store.all())
        # Add a new file
        (tmp_content_dir / "new.md").write_text('+++\ntitle = "New"\n+++\n\nBody\n')
        assert len(store.all()) == initial + 1
    def test_cache_invalidation_on_save(self, tmp_content_dir: Path) -> None:
        store = Store(str(tmp_content_dir), default_lang="en")
        initial = len(store.all())
        post = Post(metadata={"slug": "extra"}, body="x")
        store.save(post)
        assert len(store.all()) == initial + 1
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
petrbalvin	98f7f3c9e3	fix: add missing CSP style-src nonce and include static SVGs in wheel Test / test (push) Successful in 57s Details Release / release (push) Successful in 1m11s Details	2026-07-27 09:03:44 +02:00
petrbalvin	d9b7a53ac2	ci(release): fix tag env, upgrade actions, add release permissions Test / test (push) Successful in 1m10s Details	2026-07-26 23:35:30 +02:00
petrbalvin	a5c1b519ed	fix(ci): use gitea.ref_name and map PYPI_TOKEN env for publish step Test / test (push) Successful in 1m0s Details Release / release (push) Successful in 1m10s Details	2026-07-26 18:19:11 +02:00
petrbalvin	3b8ed31f67	chore: prepare release v0.4.0 Test / test (push) Successful in 1m7s Details Release / release (push) Successful in 1m11s Details	2026-07-26 18:15:29 +02:00
petrbalvin	19c6161ae0	fix: Markdown import in admin preview route	2026-07-22 21:25:27 +02:00
petrbalvin	3ac1ef78c2	fix: icon path and config.toml structure	2026-07-22 21:22:08 +02:00
petrbalvin	36855afc70	fix: hash-password command import name	2026-07-22 21:17:21 +02:00
petrbalvin	51d744e0ea	fix: default bind to :: for IPv6 dual-stack	2026-07-22 21:14:41 +02:00
petrbalvin	44b879371e	refactor: rewrite from Ruby/Sinatra to Python/FastAPI	2026-07-22 21:12:28 +02:00
petrbalvin	6f62d3e3f3	chore: prepare release v0.3.0	2026-07-12 14:03:14 +02:00
petrbalvin	1dfbf67921	style(web): polish native date, time and file inputs	2026-07-12 12:55:29 +02:00
petrbalvin	0e8f013bbb	feat(web): show version in sidebar footer	2026-07-12 11:25:22 +02:00
petrbalvin	2f90c6da4d	feat(admin): add volumen icon and use it in sidebar and login	2026-07-12 11:18:59 +02:00
petrbalvin	f40ace64a8	feat(settings): add user profile photo upload and tabbed layout	2026-07-12 11:12:37 +02:00
petrbalvin	ff0452bcc3	feat(uploads): restrict to webp/avif with conversion hint	2026-07-12 11:03:49 +02:00
petrbalvin	34dc67ce99	feat(admin): add user fediverse handle setting	2026-07-12 11:00:01 +02:00
petrbalvin	e028db6447	feat(users): add display name field for users	2026-07-12 10:57:14 +02:00
petrbalvin	cbae03014d	fix(form): default to today when date is missing	2026-07-12 10:52:17 +02:00
petrbalvin	10ef258e84	feat(admin): redesign admin UI with modern layout	2026-07-12 10:50:49 +02:00
petrbalvin	5fdf8e5ee8	feat(post): add cover caption metadata	2026-07-12 10:31:21 +02:00
petrbalvin	6ee8e066aa	feat(markdown): wrap titled images in figures with caption	2026-07-12 10:24:45 +02:00
petrbalvin	1dbeb66be0	fix(admin): clear posts cache after save/delete	2026-07-12 09:33:30 +02:00
petrbalvin	d1295c6633	docs: document all development changes in changelog Add entries for pagination flags, draft error code, just lint/fmt, config.toml.example, published_posts memoization, Store mtime invalidation, Cache-Control, FeedHelpers extraction, CSP header, upload size limit, and MIME whitelist.	2026-06-26 20:49:48 +02:00
petrbalvin	5cc3a1aabe	feat: return distinct 'draft' error for draft post detail requests Previously the API returned 'not_found' for both missing and draft posts. Now draft posts return a specific 'draft' error code so API consumers can distinguish between the two cases and show an appropriate message.	2026-06-26 20:44:42 +02:00
petrbalvin	781707a3fd	chore: bump ClassLength limit to 440 Server sits at 423 lines after extracting FeedHelpers; allow a small headroom for upcoming changes.	2026-06-26 20:44:03 +02:00
petrbalvin	2da9ec9bba	refactor: extract feed and sitemap helpers into FeedHelpers module Move feed_xml, feed_item, feed_json, json_feed_item, rfc822_date, iso_date, and sitemap_xml out of Server into a dedicated FeedHelpers module included via helpers. Reduces Server from ~500 to ~400 lines and separates feed generation concerns from routing.	2026-06-26 20:43:27 +02:00
petrbalvin	0ba6e379d7	chore: gitignore config.toml, add config.toml.example The dev config.toml contains a password hash and should not be committed. Add a config.toml.example template instead and document the copy step.	2026-06-26 20:41:49 +02:00
petrbalvin	db6da86c93	perf: add Cache-Control header to public API responses Set Cache-Control: public, max-age=60 on all /api/volumen/* endpoints so browsers and CDNs can cache responses for 60 seconds, reducing unnecessary re-fetches.	2026-06-26 20:41:30 +02:00
petrbalvin	a2f42c6a12	security: add Content-Security-Policy header for admin routes Set a strict CSP on all /admin/* responses: default-src 'self', script/style 'unsafe-inline' (needed for the inline editor JS and layout CSS), img-src 'self' data:, frame-ancestors 'none'. Public API routes are unaffected. Bump ClassLength limit to 420 to accommodate the new helper.	2026-06-26 20:41:10 +02:00
petrbalvin	223405dcb9	perf: invalidate Store cache on individual file mtime changes Previously the store only checked the content directory's own mtime, which does not change when an existing file is modified in place. Now track the newest mtime across all .md files as well, so edits picked up from disk (manual changes, git pull) are detected without a restart.	2026-06-26 20:40:21 +02:00
petrbalvin	95452477d8	chore: add just lint and just fmt recipes Add standalone lint and fmt (auto-fix) recipes to the justfile so developers can check style without running the full build. Also extract upload validation into a private Server helper to keep the admin routes method under the complexity threshold.	2026-06-26 20:37:21 +02:00
petrbalvin	bc2e056b68	feat: add has_next and has_prev to paginated posts response Clients no longer need to compute page boundaries themselves; the API now returns boolean flags indicating whether more pages exist in each direction. Includes tests for first, middle, and last page.	2026-06-26 20:36:16 +02:00
petrbalvin	e11c7d24a4	security: whitelist allowed image MIME types for uploads Only accept common image formats (JPEG, PNG, GIF, WebP, AVIF, SVG) on the upload endpoint. Non-image uploads now return HTTP 415 with a structured JSON error listing the allowed types. Includes a test.	2026-06-26 20:35:46 +02:00
petrbalvin	25ebf691f7	security: reject file uploads exceeding 10 MB Add a MAX_UPLOAD_BYTES constant (10 MB) to Server and check the uploaded tempfile size before writing it to disk. Exceeding the limit returns HTTP 413 with a structured JSON error. Includes a test.	2026-06-26 20:35:23 +02:00
petrbalvin	4abb5585df	perf: memoize published_posts within a single request Store the filtered and sorted list of published posts in an instance variable so repeated calls during the same request (posts list, tags, feeds, sitemap) reuse the cached result instead of re-filtering and re-sorting from scratch each time. Sinatra resets instance variables between requests, so the cache stays fresh.	2026-06-26 20:34:37 +02:00
petrbalvinandQwen-Coder	5437cef1cd	feat: add fediverse_creator handle for Mastodon attribution Expose a per-post fediverse_creator frontmatter field plus a site-wide default in config.toml ([site].fediverse_creator). The handle is returned in the post and site payloads, rendered as <dc:creator> in the RSS feed and as authors[].name in the JSON feed, so a front-end can drop it into <meta name="fediverse:creator"> on rendered pages. Per-post value overrides the site default. Validated against a simple @user@host regex. Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>	2026-06-26 17:40:48 +02:00
petrbalvin	1440e9a1fd	release: bump version to 0.2.0	2026-06-25 22:12:55 +02:00
petrbalvin	b24a8cc377	feat: add fulltext search with ?q= parameter Filter posts by case-insensitive match in title and body. Extracted filter_by_lang and search_posts helpers to keep complexity in check.	2026-06-25 22:06:49 +02:00
petrbalvin	599c63e5bc	feat: add JSON Feed endpoint at /api/volumen/feed.json Implements jsonfeed.org version 1.1 with title, home_page_url, feed_url, description, language, and items with content_html and date_published.	2026-06-25 22:06:49 +02:00
petrbalvin	73be893bf8	feat: add scheduled publishing with publish_at frontmatter field Posts with a future publish_at date are hidden from the public API and feeds, same as drafts. The admin form exposes a Publish at field.	2026-06-25 22:06:49 +02:00
petrbalvin	52be2bb996	security: CORS preflight, session invalidation, CSRF on preview, symlink containment, and hardening - Add OPTIONS /api/volumen/* for CORS preflight (S-22). - Invalidate session in require_login! when user no longer exists (S-8). - Add check_csrf! to POST /admin/preview (S-1). - Use File.realpath for symlink-safe containment in media_file (S-2). - Memoize Users#all with mtime-based invalidation (S-12). - Document that empty permitted_hosts means allow-all (S-5). - Warn and fall back to random when session_key is too short (S-20).	2026-06-25 22:06:49 +02:00
petrbalvin	5b8236c0a4	test: add sitemap.xml endpoint test Verify content type, urlset structure, post URL presence, and draft exclusion.	2026-06-25 22:06:49 +02:00
petrbalvin	51e425e6dd	test: add CLI test coverage Cover version, help, unknown command, parse_serve_options defaults and overrides, prepare_config template generation and no-op.	2026-06-25 22:06:49 +02:00
petrbalvin	ce57410044	fix: Store#save writes non-default language posts into lang subdirectory default_path_for now routes posts whose lang differs from default_lang into content_dir/<lang>/<slug>.md, matching the documented multi-language layout and preventing same-slug posts in different languages from overwriting each other.	2026-06-25 22:06:49 +02:00
petrbalvin	afd8ab4bfb	fix: atomic writes for posts and users.toml Write to a .tmp file and then File.rename into place, so a concurrent read or a mid-write crash never sees a torn file.	2026-06-25 22:06:49 +02:00
petrbalvin	ad00872895	perf: memoize Store#all with mtime-based invalidation Cache the parsed post list per Store instance, invalidated on save, delete, or content_dir mtime change. Eliminates re-parsing every .md file on every API and admin request.	2026-06-25 22:06:49 +02:00
petrbalvin	d7f9813484	fix: prevent Config DEFAULTS mutation through deep_merge Freeze inner hashes in DEFAULTS and rewrite deep_merge to build fresh hashes with {}.merge for uncopied inner maps. Previously, inner hashes shared objects with the frozen-looking DEFAULTS, so mutating a loaded config silently poisoned all later loads.	2026-06-25 22:06:49 +02:00
petrbalvin	263e794669	security: hide draft posts from public detail endpoint Add post.draft? check to GET /api/volumen/posts/:slug so guessing a draft slug returns 404 like the list endpoint already does.	2026-06-25 22:06:49 +02:00
petrbalvin	1ca0212197	security: add slug validation, username validation, and template escaping - Enforce SLUG_REGEX (alphanumeric + dot/dash/underscore only) in creation_error to prevent path traversal (C-1) and stored XSS (C-3). - Add File.expand_path containment check in default_path_for as defense-in-depth. - Escape slug in form action attributes (list, form views). - Validate username in change_username using the same regex as create_user (C-4). - Escape username in settings form action attributes. - Treat submitting the current username as a no-op success instead of 'taken'.	2026-06-25 22:06:49 +02:00
petrbalvin	d26d3b5a5b	fix: strip HTML tags from derived excerpt gsub(/<[^>]+>/, '') before stripping markdown markup, so auto-generated excerpts don't leak raw HTML from post bodies.	2026-06-25 22:06:49 +02:00
petrbalvin	4597c685da	test: add RSS feed endpoint tests Verify content type, RSS structure, draft exclusion, and language element.	2026-06-25 21:41:19 +02:00
petrbalvin	2181538691	feat: add language element to RSS feed channel	2026-06-25 21:40:57 +02:00
petrbalvin	9dd55adc30	fix: add periodic cleanup of login_attempts hash Sweep stale entries every 5 minutes to prevent unbounded memory growth from IPs that touch the login endpoint once and never return.	2026-06-25 21:40:37 +02:00
petrbalvin	7a31b50ca7	docs: add [development] section to CHANGELOG, document in CONTRIBUTING Record ongoing changes under [development] in CHANGELOG.md. Update the release workflow to rename [development] to the versioned section.	2026-06-25 21:37:27 +02:00
petrbalvin	b2b8156648	refactor: split Server into api_routes and admin_routes modules Keep server.rb focused on configuration, session setup, and shared helpers. Extract route definitions into registered Sinatra extension modules. Exclude the registered methods from AbcSize/MethodLength metrics — large registered methods are the idiomatic Sinatra pattern.	2026-06-25 21:35:07 +02:00
petrbalvin	140b16b55a	feat: add in-memory rate limiting for login endpoint Rate-limit POST /admin/login at 10 attempts per 60 seconds per IP. Stored in Volumen.login_attempts so tests can reset the counter.	2026-06-25 21:33:16 +02:00
petrbalvin	2348352fab	feat: add lastmod to sitemap entries	2026-06-25 21:31:57 +02:00
petrbalvin	184aa9b3d8	feat: add pubDate to RSS feed items	2026-06-25 21:31:02 +02:00
petrbalvin	0a70b74b55	fix: wire session_ttl config into Rack session cookie expiration The admin.session_ttl value was defined in defaults, template, and documentation but never read — sessions had no expiration. Pass it as expire_after to Rack::Session::Cookie. A value <= 0 means persistent (until browser close), matching the documented behaviour.	2026-06-25 21:30:20 +02:00