93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
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// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
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package admin
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import (
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"fmt"
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"io"
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"net/http"
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"path/filepath"
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"strings"
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"sourcedock.dev/petrbalvin/volumen/internal/i18n"
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"sourcedock.dev/petrbalvin/volumen/internal/payloads"
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"sourcedock.dev/petrbalvin/volumen/internal/post"
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)
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func (a *Admin) handleImportForm(w http.ResponseWriter, r *http.Request) {
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data := a.pageData(r)
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data.Crumbs = []Crumb{
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{Label: "Posts", Href: "/admin/", UI: true},
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{Label: "Import", IsLast: true, UI: true},
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}
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a.renderPage(w, r, "import.html", data, http.StatusOK)
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}
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func (a *Admin) handleImport(w http.ResponseWriter, r *http.Request) {
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if !a.requireCSRF(w, r) {
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return
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}
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data := a.pageData(r)
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data.Crumbs = []Crumb{
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{Label: "Posts", Href: "/admin/", UI: true},
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{Label: "Import", IsLast: true, UI: true},
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}
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fail := func(msg string) {
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data.Error = i18n.Admin.T(data.Lang, msg)
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a.renderPage(w, r, "import.html", data, http.StatusUnprocessableEntity)
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}
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file, header, err := r.FormFile("file")
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if err != nil {
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fail("No file selected.")
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return
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}
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defer file.Close()
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if !strings.HasSuffix(strings.ToLower(header.Filename), ".md") {
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fail("Only .md files are accepted.")
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return
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}
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raw, err := readLimited(file, int64(a.deps.Config.Admin.MaxUploadBytes))
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if err != nil {
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fail("File is too large.")
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return
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}
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content := string(raw)
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p, err := post.Parse(content)
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if err != nil {
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fail(i18n.Admin.Tf(data.Lang, "The file could not be read as a post: %s", err.Error()))
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return
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}
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if p.Slug() == "" {
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base := strings.ToLower(filepath.Base(header.Filename))
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stem := strings.TrimSuffix(base, filepath.Ext(base))
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p.Metadata.Set("slug", strings.ReplaceAll(stem, " ", "-"))
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}
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if p.Lang() == "" {
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p.Metadata.Set("lang", a.deps.Config.Site.Language)
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}
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if err := payloads.CreationError(p, a.deps.Store, nil); err != nil {
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fail(err.Error())
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return
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}
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if _, err := a.deps.Store.Save(p); err != nil {
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fail("Import failed.")
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return
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}
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http.Redirect(w, r, "/admin/posts/"+p.Slug()+"/edit", http.StatusSeeOther)
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}
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// readLimited reads at most limit+1 bytes so callers can detect
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// oversize uploads.
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func readLimited(r io.Reader, limit int64) ([]byte, error) {
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raw, err := io.ReadAll(io.LimitReader(r, limit+1))
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if err != nil {
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return nil, err
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}
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if int64(len(raw)) > limit {
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return nil, fmt.Errorf("payload too large")
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}
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return raw, nil
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}
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