127 lines
4.3 KiB
Ruby
127 lines
4.3 KiB
Ruby
# plugins/discourse-legacy_links/plugin.rb
|
|
|
|
# frozen_string_literal: true
|
|
|
|
# name: discourse-legacy_links
|
|
# about: A plugin to handle legacy Gossamer Forums URLs
|
|
# version: 0.48
|
|
# authors: saint@federated.computer
|
|
# url: https://gitea.federated.computer/saint/discourse-legacy_links.git
|
|
|
|
# enabled_site_setting :discourse_legacy_links_enabled
|
|
|
|
after_initialize do
|
|
module ::DiscourseLegacyLinks
|
|
class Engine < ::Rails::Engine
|
|
engine_name "discourse_legacy_links"
|
|
isolate_namespace DiscourseLegacyLinks
|
|
end
|
|
end
|
|
|
|
require_dependency "application_controller"
|
|
class ::DiscourseLegacyLinks::LegacyLinksController < ::ApplicationController
|
|
skip_before_action :check_xhr, only: [:index]
|
|
|
|
def index2
|
|
render plain: "Legacy Links from Discourse plugin! Current user: #{current_user&.username || 'Guest'}"
|
|
end
|
|
|
|
def index
|
|
Rails.logger.info("DiscourseLegacyLinks: Handling request for URL: #{request.original_url}")
|
|
|
|
post_id = extract_post_id_from_request
|
|
|
|
if post_id
|
|
Rails.logger.info("DiscourseLegacyLinks: Extracted post_id: #{post_id}")
|
|
post = find_post_by_custom_field(post_id)
|
|
|
|
if post
|
|
Rails.logger.info("DiscourseLegacyLinks: Found matching post with id: #{post.id}")
|
|
redirect_to_post(post)
|
|
else
|
|
Rails.logger.warn("DiscourseLegacyLinks: No matching post found for post_id: #{post_id}")
|
|
render_not_found
|
|
end
|
|
else
|
|
Rails.logger.warn("DiscourseLegacyLinks: Unable to extract post_id from request")
|
|
render_bad_request
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
# Attempts to extract a post ID from various parts of the request
|
|
def extract_post_id_from_request
|
|
post_id = params[:post_id].presence ||
|
|
request.path.match(%r{/forum/[^/]+/P(\d+)/?})&.[](1) ||
|
|
request.query_string.match(/post=(\d+)/)&.[](1) ||
|
|
request.query_string.match(/parent_post_id=(\d+)/)&.[](1)
|
|
|
|
Rails.logger.info("DiscourseLegacyLinks: Extracted raw post_id: #{post_id || 'nil'}")
|
|
post_id.to_i if post_id
|
|
end
|
|
|
|
# Finds a post by looking up the custom field on the associated topic
|
|
def find_post_by_custom_field(post_id)
|
|
Rails.logger.info("DiscourseLegacyLinks: Searching for post with original_gossamer_id: #{post_id}")
|
|
|
|
post_custom_field = PostCustomField.find_by(name: 'original_gossamer_id', value: post_id.to_s)
|
|
|
|
if post_custom_field
|
|
post = post_custom_field.post
|
|
Rails.logger.info("DiscourseLegacyLinks: Found post with id: #{post.id}")
|
|
post
|
|
else
|
|
Rails.logger.warn("DiscourseLegacyLinks: No post found with original_gossamer_id: #{post_id}")
|
|
nil
|
|
end
|
|
end
|
|
# def find_post_by_custom_field(post_id)
|
|
# Rails.logger.info("DiscourseLegacyLinks: Searching for post with original_gossamer_id: #{post_id}")
|
|
#
|
|
# topic = Topic.joins(:custom_fields)
|
|
# .where(topic_custom_fields: { name: 'original_gossamer_id', value: post_id.to_s })
|
|
# .first
|
|
#
|
|
# if topic
|
|
# post = topic.posts.first
|
|
# Rails.logger.info("DiscourseLegacyLinks: Found topic #{topic.id}, first post id: #{post&.id || 'nil'}")
|
|
# post
|
|
# else
|
|
# Rails.logger.warn("DiscourseLegacyLinks: No topic found with original_gossamer_id: #{post_id}")
|
|
# nil
|
|
# end
|
|
# end
|
|
|
|
# Redirects to the URL of the found post
|
|
def redirect_to_post(post)
|
|
Rails.logger.info("DiscourseLegacyLinks: Redirecting to post URL: #{post.url}")
|
|
redirect_to post.url, status: :moved_permanently
|
|
end
|
|
|
|
# Renders a 404 Not Found response
|
|
def render_not_found
|
|
Rails.logger.info("DiscourseLegacyLinks: Rendering 404 Not Found")
|
|
render plain: 'Post not found', status: :not_found
|
|
end
|
|
|
|
# Renders a 400 Bad Request response
|
|
def render_bad_request
|
|
Rails.logger.info("DiscourseLegacyLinks: Rendering 400 Bad Request")
|
|
render plain: 'Invalid URL', status: :bad_request
|
|
end
|
|
end
|
|
|
|
# Rails.logger.info("DiscourseLegacyLinks: initialistaion")
|
|
|
|
DiscourseLegacyLinks::Engine.routes.draw do
|
|
get "/forum" => "legacy_links#index"
|
|
get "/forum/*path" => "legacy_links#index"
|
|
end
|
|
|
|
Discourse::Application.routes.append do
|
|
mount ::DiscourseLegacyLinks::Engine, at: "/"
|
|
end
|
|
end
|
|
|