volumen/lib/volumen.rb

# 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
  CLEANUP_INTERVAL = 300 # seconds between full sweeps of login_attempts

  def self.login_attempts
    @login_attempts ||= {}
  end

  def self.reset_login_attempts!
    @login_attempts = {}
    @last_cleanup = nil
  end

  def self.sweep_login_attempts!
    now = Time.now.to_f
    return if @last_cleanup && (now - @last_cleanup) < CLEANUP_INTERVAL

    cutoff = now - Volumen::Server::LOGIN_WINDOW
    login_attempts.each_value { |timestamps| timestamps.select! { |t| t > cutoff } }
    login_attempts.delete_if { |_ip, timestamps| timestamps.empty? }
    @last_cleanup = now
  end
end