0.46 More rewrite based on recent success with blocker.
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plugin.first
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plugin.first
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# plugins/discourse-legacy_links/plugin.rb
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# frozen_string_literal: true
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# name: discourse-legacy_links
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# about: A plugin to handle legacy Gossamer Forums URLs
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# version: 0.44
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# authors: saint@federated.computer
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# url: https://gitea.federated.computer/saint/discourse-legacy_links.git
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# enabled_site_setting :discourse_legacy_links_enabled
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after_initialize do
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module ::DiscourseLegacyLinks
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class Engine < ::Rails::Engine
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engine_name "discourse_legacy_links"
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isolate_namespace DiscourseLegacyLinks
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end
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end
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require_dependency "application_controller"
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# Define the custom controller, inheriting from Discourse's CustomPostController
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# This gives us access to post-related functionality and user authentication
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# class DiscourseLegacyLinks::CustomPostController < ::ApplicationController
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# class LegacyLinksController::CustomPostController < ::ApplicationController
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# class LegacyLinksController < ::ApplicationController::CustomPostController
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# layout false
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# Skip certain before_actions for our index method.
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# This allows the route to be accessed directly via a browser
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## skip_before_action :check_xhr, only: [:index2]
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## skip_before_action :verify_authenticity_token, only: [:index2]
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# skip_before_action :verify_authenticity_token
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# skip_before_action :ensure_logged_in
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# skip_before_action :redirect_to_login_if_required
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# skip_before_action :check_xhr
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# skip_before_action :ensure_staff
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def index2
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Rails.logger.warn "[WARN WARN WARN WARN WARN WARN WARN WARN WARN WARN AMDG JMJ PAX WARN WARN WARN WARN]"
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render plain: "Test route JMJ"
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# render html: '<h1>JMJ</h1>'
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end
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# Match URLs that include a post_id at the end or query parameter
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# Main action triggered when the route is matched.
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def index
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Rails.logger.warn "[DEBUG] Reached the index action"
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# Log all incoming parameters to see what's being passed
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Rails.logger.warn "[DEBUG] Params: #{params.inspect}"
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post_id = extract_post_id_from_request
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if post_id
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Rails.logger.warn "[DEBUG] Processing request for post_id: #{post_id}"
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post = find_post_by_custom_field(post_id)
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if post
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# Redirect to the post URL if found
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Rails.logger.warn "[DEBUG] Redirecting to post with ID: #{post.id}"
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# redirect_to post_url(post)
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redirect_to_post(post)
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else
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# Return 404 if the post is not found
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Rails.logger.warn "[ERROR] Post with original_gossamer_id #{post_id} not found"
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render plain: 'Post not found', status: 404
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end
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else
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# Handle cases where the post_id cannot be extracted
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Rails.logger.warn "[ERROR] Could not extract post_id from the request"
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render plain: 'Invalid URL', status: 400
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end
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end
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private
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# Extracts the post ID from the request URL or query string.
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# Supports various formats of legacy forum URLs.
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# @return [Integer, nil] The extracted post ID or nil if not found
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def extract_post_id_from_request
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# Check if post_id is passed as a query parameter (?post=post_id)
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if params[:post_id]
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post_id = params[:post_id].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from query param: #{post_id}"
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return post_id
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end
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# Check for post_id in the URL path (e.g., /forum/.../P12345/)
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if match = request.path.match(%r{/forum/[^/]+/P(\d+)/?})
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from URL path: #{post_id}"
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return post_id
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end
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# Check for post_id in the query string (e.g., ?post=12345)
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if match = request.query_string.match(/post=(\d+)/)
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from query string (?post=): #{post_id}"
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return post_id
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end
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# Check for parent_post_id in the query string (e.g., ?parent_post_id=12345)
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if match = request.query_string.match(/parent_post_id=(\d+)/)
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted parent_post_id from query string: #{post_id}"
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return post_id
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end
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# If no post_id was found in any format
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Rails.logger.warn "[DEBUG] Could not extract post_id from request"
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nil
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end
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# Finds the Discourse post that has the specified custom field value.
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# The custom field used is 'original_gossamer_id'.
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# @param post_id [Integer] The extracted Gossamer forum post ID
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# @return [Post, nil] The corresponding Discourse post or nil if not found
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def find_post_by_custom_field(post_id)
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Rails.logger.warn "[DEBUG] Searching for post with custom field 'original_gossamer_id' and value #{post_id}"
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# Use ActiveRecord query to find the post by the custom field value
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post = Post.joins(:topic_custom_fields)
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.where(topic_custom_fields: { name: 'original_gossamer_id', value: post_id.to_s })
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.first
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if post
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Rails.logger.warn "[DEBUG] Found post with ID: #{post.id} for original_gossamer_id: #{post_id}"
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else
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Rails.logger.warn "[DEBUG] No post found for original_gossamer_id: #{post_id}"
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end
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post
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end
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# Redirects to the specified Discourse post.
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# @param post [Post] The Discourse post to redirect to
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def redirect_to_post(post)
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topic_url = "#{Discourse.base_url}/t/#{post.topic_id}/#{post.post_number}"
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Rails.logger.warn "[DEBUG] Redirecting to topic URL: #{topic_url}"
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redirect topic_url
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end
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end
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end
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Rails.logger.warn "[DEBUG DEBUG DEBUG DEBUG DEBUG WOW WOW WOW]"
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# Rails.application.routes.routes.each do |route|
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# Rails.logger.warn "[ROUTE] #{route.path.spec}"
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# end
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#
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# Discourse::Application.routes.append do
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# Discourse::Application.routes.prepend do
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# get '/forum/*path', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |req| !Permalink.exists?(url: req.path) }
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# get '/forum', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |request| Rails.logger.warn("[DEBUG] NoStarForum Route matched: #{request.path}") }
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# get '/forum/*path', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |request| Rails.logger.warn("[DEBUG] StarForum Route matched: #{request.path}") }
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# get '/forum2', to: 'discourse_legacy_links/custom_post#index2', constraints: lambda { |request| Rails.logger.warn("[DEBUG] NoStarTestRoute Route matched: #{request.path}") }
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# get '/forum2/*path', to: 'discourse_legacy_links/custom_post#index2', constraints: lambda { |request| Rails.logger.warn("[DEBUG] StarTestRoute Route matched: #{request.path}") }
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# get '/forum2' => "'discourse_legacy_links/custom_post#index2'
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# get '/forum/*path' => 'discourse_legacy_links/custom_post#index'
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# get '/forum' => 'discourse_legacy_links/custom_post#index'
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# # Register custom routes to handle legacy URLs
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# DiscourseLegacyLinks::Engine.routes.draw do
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# get "/forum2" => "legacy_links#index2"
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# end
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# Discourse::Application.routes.append do
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# mount ::DiscourseLegacyLinks::Engine, at: "/"
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# end
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end
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186
plugin.rb
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plugin.rb
@ -4,173 +4,109 @@
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# name: discourse-legacy_links
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# about: A plugin to handle legacy Gossamer Forums URLs
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# version: 0.41
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# version: 0.46
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# authors: saint@federated.computer
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# url: https://gitea.federated.computer/saint/discourse-legacy_links.git
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# require 'digest'
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# enabled_site_setting :discourse_legacy_links_enabled
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# after_initialize do
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after_initialize do
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# require_dependency 'application_controller'
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module ::DiscourseLegacyLinks
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class Engine < ::Rails::Engine
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engine_name "discourse_legacy_links"
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isolate_namespace DiscourseLegacyLinks
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end
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# Define the custom controller, inheriting from Discourse's CustomPostController
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# This gives us access to post-related functionality and user authentication
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# class DiscourseLegacyLinks::CustomPostController < ::ApplicationController
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class LegacyLinksController::CustomPostController < ::ApplicationController
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# class LegacyLinksController < ::ApplicationController::CustomPostController
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# layout false
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# Skip certain before_actions for our index method.
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# This allows the route to be accessed directly via a browser
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## skip_before_action :check_xhr, only: [:index2]
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## skip_before_action :verify_authenticity_token, only: [:index2]
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# skip_before_action :verify_authenticity_token
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# skip_before_action :ensure_logged_in
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# skip_before_action :redirect_to_login_if_required
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# skip_before_action :check_xhr
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# skip_before_action :ensure_staff
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def index2
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Rails.logger.warn "[WARN WARN WARN WARN WARN WARN WARN WARN WARN WARN AMDG JMJ PAX WARN WARN WARN WARN]"
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render plain: "Test route JMJ"
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# render html: '<h1>JMJ</h1>'
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end
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# Match URLs that include a post_id at the end or query parameter
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# Main action triggered when the route is matched.
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def index
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Rails.logger.warn "[DEBUG] Reached the index action"
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require_dependency "application_controller"
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class ::DiscourseLegacyLinks::LegacyLinksController < ::ApplicationController
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skip_before_action :check_xhr, only: [:index]
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def index2
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render plain: "Legacy Links from Discourse plugin! Current user: #{current_user&.username || 'Guest'}"
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end
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def index
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Rails.logger.info("DiscourseLegacyLinks: Handling request for URL: #{request.original_url}")
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# Log all incoming parameters to see what's being passed
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Rails.logger.warn "[DEBUG] Params: #{params.inspect}"
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post_id = extract_post_id_from_request
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if post_id
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Rails.logger.warn "[DEBUG] Processing request for post_id: #{post_id}"
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Rails.logger.info("DiscourseLegacyLinks: Extracted post_id: #{post_id}")
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post = find_post_by_custom_field(post_id)
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if post
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# Redirect to the post URL if found
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Rails.logger.warn "[DEBUG] Redirecting to post with ID: #{post.id}"
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# redirect_to post_url(post)
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Rails.logger.info("DiscourseLegacyLinks: Found matching post with id: #{post.id}")
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redirect_to_post(post)
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else
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# Return 404 if the post is not found
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Rails.logger.warn "[ERROR] Post with original_gossamer_id #{post_id} not found"
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render plain: 'Post not found', status: 404
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Rails.logger.warn("DiscourseLegacyLinks: No matching post found for post_id: #{post_id}")
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render_not_found
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end
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else
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# Handle cases where the post_id cannot be extracted
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Rails.logger.warn "[ERROR] Could not extract post_id from the request"
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render plain: 'Invalid URL', status: 400
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Rails.logger.warn("DiscourseLegacyLinks: Unable to extract post_id from request")
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render_bad_request
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end
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end
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private
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# Extracts the post ID from the request URL or query string.
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# Supports various formats of legacy forum URLs.
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# @return [Integer, nil] The extracted post ID or nil if not found
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# Attempts to extract a post ID from various parts of the request
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def extract_post_id_from_request
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# Check if post_id is passed as a query parameter (?post=post_id)
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if params[:post_id]
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post_id = params[:post_id].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from query param: #{post_id}"
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return post_id
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post_id = params[:post_id].presence ||
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request.path.match(%r{/forum/[^/]+/P(\d+)/?})&.[](1) ||
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request.query_string.match(/post=(\d+)/)&.[](1) ||
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request.query_string.match(/parent_post_id=(\d+)/)&.[](1)
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Rails.logger.info("DiscourseLegacyLinks: Extracted raw post_id: #{post_id || 'nil'}")
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post_id.to_i if post_id
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end
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# Check for post_id in the URL path (e.g., /forum/.../P12345/)
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if match = request.path.match(%r{/forum/[^/]+/P(\d+)/?})
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from URL path: #{post_id}"
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return post_id
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end
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# Check for post_id in the query string (e.g., ?post=12345)
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if match = request.query_string.match(/post=(\d+)/)
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted post_id from query string (?post=): #{post_id}"
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return post_id
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end
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# Check for parent_post_id in the query string (e.g., ?parent_post_id=12345)
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if match = request.query_string.match(/parent_post_id=(\d+)/)
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post_id = match[1].to_i
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Rails.logger.warn "[DEBUG] Extracted parent_post_id from query string: #{post_id}"
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return post_id
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end
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# If no post_id was found in any format
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Rails.logger.warn "[DEBUG] Could not extract post_id from request"
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nil
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end
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# Finds the Discourse post that has the specified custom field value.
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# The custom field used is 'original_gossamer_id'.
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# @param post_id [Integer] The extracted Gossamer forum post ID
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# @return [Post, nil] The corresponding Discourse post or nil if not found
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# Finds a post by looking up the custom field on the associated topic
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def find_post_by_custom_field(post_id)
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Rails.logger.warn "[DEBUG] Searching for post with custom field 'original_gossamer_id' and value #{post_id}"
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Rails.logger.info("DiscourseLegacyLinks: Searching for post with original_gossamer_id: #{post_id}")
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# Use ActiveRecord query to find the post by the custom field value
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post = Post.joins(:topic_custom_fields)
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topic = Topic.joins(:custom_fields)
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.where(topic_custom_fields: { name: 'original_gossamer_id', value: post_id.to_s })
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.first
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if post
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Rails.logger.warn "[DEBUG] Found post with ID: #{post.id} for original_gossamer_id: #{post_id}"
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else
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Rails.logger.warn "[DEBUG] No post found for original_gossamer_id: #{post_id}"
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end
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if topic
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post = topic.posts.first
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Rails.logger.info("DiscourseLegacyLinks: Found topic #{topic.id}, first post id: #{post&.id || 'nil'}")
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post
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else
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Rails.logger.warn("DiscourseLegacyLinks: No topic found with original_gossamer_id: #{post_id}")
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nil
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end
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end
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# Redirects to the specified Discourse post.
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# @param post [Post] The Discourse post to redirect to
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# Redirects to the URL of the found post
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def redirect_to_post(post)
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topic_url = "#{Discourse.base_url}/t/#{post.topic_id}/#{post.post_number}"
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Rails.logger.warn "[DEBUG] Redirecting to topic URL: #{topic_url}"
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redirect topic_url
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end
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end
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Rails.logger.info("DiscourseLegacyLinks: Redirecting to post URL: #{post.url}")
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redirect_to post.url, status: :moved_permanently
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end
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Rails.logger.warn "[DEBUG DEBUG DEBUG DEBUG DEBUG WOW WOW WOW]"
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# Rails.application.routes.routes.each do |route|
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# Rails.logger.warn "[ROUTE] #{route.path.spec}"
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# end
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#
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# Discourse::Application.routes.append do
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# Discourse::Application.routes.prepend do
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# get '/forum/*path', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |req| !Permalink.exists?(url: req.path) }
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# get '/forum', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |request| Rails.logger.warn("[DEBUG] NoStarForum Route matched: #{request.path}") }
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# get '/forum/*path', to: 'discourse_legacy_links/custom_post#index', constraints: lambda { |request| Rails.logger.warn("[DEBUG] StarForum Route matched: #{request.path}") }
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# get '/forum2', to: 'discourse_legacy_links/custom_post#index2', constraints: lambda { |request| Rails.logger.warn("[DEBUG] NoStarTestRoute Route matched: #{request.path}") }
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# get '/forum2/*path', to: 'discourse_legacy_links/custom_post#index2', constraints: lambda { |request| Rails.logger.warn("[DEBUG] StarTestRoute Route matched: #{request.path}") }
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# get '/forum2' => "'discourse_legacy_links/custom_post#index2'
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# get '/forum/*path' => 'discourse_legacy_links/custom_post#index'
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# get '/forum' => 'discourse_legacy_links/custom_post#index'
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# # Register custom routes to handle legacy URLs
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# DiscourseLegacyLinks::Engine.routes.draw do
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# get "/forum2" => "legacy_links#index2"
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# end
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# Discourse::Application.routes.append do
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# mount ::DiscourseLegacyLinks::Engine, at: "/"
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# end
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# Renders a 404 Not Found response
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def render_not_found
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Rails.logger.info("DiscourseLegacyLinks: Rendering 404 Not Found")
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render plain: 'Post not found', status: :not_found
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end
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# Renders a 400 Bad Request response
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def render_bad_request
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Rails.logger.info("DiscourseLegacyLinks: Rendering 400 Bad Request")
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render plain: 'Invalid URL', status: :bad_request
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end
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end
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# Rails.logger.info("DiscourseLegacyLinks: initialistaion")
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DiscourseLegacyLinks::Engine.routes.draw do
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get "/legacy" => "legacy_links#index"
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get "/legacy/*path" => "legacy_links#index"
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end
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Discourse::Application.routes.append do
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mount ::DiscourseLegacyLinks::Engine, at: "/"
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end
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end
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