76 lines
2.1 KiB
Ruby
76 lines
2.1 KiB
Ruby
# 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: 0.2
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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_routing_enabled
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# after_initialize do
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after_initialize do
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module ::DiscourseCustomRouting
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class Engine < ::Rails::Engine
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engine_name "discourse_custom_routing"
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isolate_namespace DiscourseCustomRouting
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end
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# Define the custom controller
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class CustomPostController < ::ApplicationController
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# Match URLs that include a post_id at the end or query parameter
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def index
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post_id = extract_post_id_from_request
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if 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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redirect_to post_url(post)
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else
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# Return 404 if the post is 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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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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def extract_post_id_from_request
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# Extract post_id from various URL formats
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if params[:post_id]
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params[:post_id].to_i
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elsif request.path.match(%r{/forum/[^/]+/P(\d+)/})
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$1.to_i
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elsif request.query_string.match(/post=(\d+)/)
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$1.to_i
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elsif request.query_string.match(/parent_post_id=(\d+)/)
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$1.to_i
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else
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nil
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end
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end
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def find_post_by_custom_field(post_id)
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# Find the post with the specified custom field
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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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end
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end
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# Register custom routes
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Discourse::Application.routes.append do
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get '/forum/*path' => 'custom_post#index'
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end
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end
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end
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