#19

backend/.gitignore

@@ -36,3 +36,5 @@
 /config/database.yml
 
 /config/credentials/production.key
+
+/wiki

backend/Gemfile

@@ -55,3 +55,5 @@ gem "mysql2", "~> 0.5.6"
 gem "image_processing", "~> 1.14"
 
 gem "nokogiri", "~> 1.18"
+
+gem 'gollum'

backend/Gemfile.lock

@@ -100,8 +100,41 @@ GEM
     ffi (1.17.2-x86_64-darwin)
     ffi (1.17.2-x86_64-linux-gnu)
     ffi (1.17.2-x86_64-linux-musl)
+    gemojione (4.3.3)
+      json
+    github-markup (4.0.2)
     globalid (1.2.1)
       activesupport (>= 6.1)
+    gollum (6.1.0)
+      gemojione (~> 4.1)
+      gollum-lib (~> 6.0)
+      i18n (~> 1.8)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1.0)
+      mustache-sinatra (~> 2.0)
+      octicons (~> 19.0)
+      rack (>= 3.0)
+      rackup (~> 2.1)
+      rdoc (~> 6)
+      rss (~> 0.3)
+      sinatra (~> 4.0)
+      sinatra-contrib (~> 4.0)
+      sprockets (~> 4.1)
+      sprockets-helpers (~> 1.2)
+      therubyrhino (~> 2.1.0)
+      useragent (~> 0.16.2)
+      webrick (~> 1.7)
+    gollum-lib (6.0)
+      gemojione (~> 4.1)
+      github-markup (~> 4.0)
+      gollum-rugged_adapter (~> 3.0)
+      loofah (~> 2.3)
+      nokogiri (~> 1.8)
+      rouge (~> 3.1)
+      twitter-text (= 1.14.7)
+    gollum-rugged_adapter (3.0)
+      mime-types (~> 3.4)
+      rugged (~> 1.5)
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     image_processing (1.14.0)
@@ -126,6 +159,10 @@ GEM
       sshkit (>= 1.23.0, < 2.0)
       thor (~> 1.3)
       zeitwerk (>= 2.6.18, < 3.0)
+    kramdown (2.5.1)
+      rexml (>= 3.3.9)
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     logger (1.7.0)
@@ -138,12 +175,22 @@ GEM
       net-pop
       net-smtp
     marcel (1.0.4)
+    mime-types (3.7.0)
+      logger
+      mime-types-data (~> 3.2025, >= 3.2025.0507)
+    mime-types-data (3.2025.0603)
     mini_magick (5.2.0)
       benchmark
       logger
     mini_mime (1.1.5)
     minitest (5.25.5)
     msgpack (1.8.0)
+    multi_json (1.15.0)
+    mustache (1.1.1)
+    mustache-sinatra (2.0.0)
+      mustache (~> 1.0)
+    mustermann (3.0.3)
+      ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.6)
     net-imap (0.5.8)
       date
@@ -176,6 +223,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.8-x86_64-linux-musl)
       racc (~> 1.4)
+    octicons (19.15.2)
     ostruct (0.6.1)
     parallel (1.27.0)
     parser (3.3.8.0)
@@ -194,6 +242,10 @@ GEM
     rack (3.1.14)
     rack-cors (2.0.2)
       rack (>= 2.0.0)
+    rack-protection (4.1.1)
+      base64 (>= 0.1.0)
+      logger (>= 1.6.0)
+      rack (>= 3.0.0, < 4)
     rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
@@ -237,6 +289,10 @@ GEM
     regexp_parser (2.10.0)
     reline (0.6.1)
       io-console (~> 0.5)
+    rexml (3.4.1)
+    rouge (3.30.0)
+    rss (0.3.1)
+      rexml
     rubocop (1.75.6)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
@@ -269,11 +325,28 @@ GEM
     ruby-vips (2.2.3)
       ffi (~> 1.12)
       logger
+    ruby2_keywords (0.0.5)
+    rugged (1.9.0)
     securerandom (0.4.1)
+    sinatra (4.1.1)
+      logger (>= 1.6.0)
+      mustermann (~> 3.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.1.1)
+      rack-session (>= 2.0.0, < 3)
+      tilt (~> 2.0)
+    sinatra-contrib (4.1.1)
+      multi_json (>= 0.0.2)
+      mustermann (~> 3.0)
+      rack-protection (= 4.1.1)
+      sinatra (= 4.1.1)
+      tilt (~> 2.0)
     sprockets (4.2.2)
       concurrent-ruby (~> 1.0)
       logger
       rack (>= 2.2.4, < 4)
+    sprockets-helpers (1.4.0)
+      sprockets (>= 2.2)
     sprockets-rails (3.5.2)
       actionpack (>= 6.1)
       activesupport (>= 6.1)
@@ -294,20 +367,30 @@ GEM
       net-ssh (>= 2.8.0)
       ostruct
     stringio (3.1.7)
+    therubyrhino (2.1.2)
+      therubyrhino_jar (>= 1.7.4, < 1.7.9)
+    therubyrhino_jar (1.7.8)
     thor (1.3.2)
     thruster (0.1.13)
     thruster (0.1.13-aarch64-linux)
     thruster (0.1.13-arm64-darwin)
     thruster (0.1.13-x86_64-darwin)
     thruster (0.1.13-x86_64-linux)
+    tilt (2.6.0)
     timeout (0.4.3)
+    twitter-text (1.14.7)
+      unf (~> 0.1.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.9.1)
     unicode-display_width (3.1.4)
       unicode-emoji (~> 4.0, >= 4.0.4)
     unicode-emoji (4.0.4)
     uri (1.0.3)
     useragent (0.16.11)
+    webrick (1.9.1)
     websocket-driver (0.7.7)
       base64
       websocket-extensions (>= 0.1.0)
@@ -329,6 +412,7 @@ PLATFORMS
 DEPENDENCIES
   bootsnap
   brakeman
+  gollum
   image_processing (~> 1.14)
   jwt
   kamal

backend/app/controllers/wiki_proxy_controller.rb

@@ -0,0 +1,31 @@
+require 'net/http'
+require 'uri'
+
+
+class WikiProxyController < ApplicationController
+  def edit
+    tag = params[:tag]
+    uri = "http://localhost:4567/gollum/edit/#{ URI.encode_www_form_component(tag) }"
+    begin
+      res = fetch_with_redirect(uri)
+      render html: res.body.html_safe, content_type: res.content_type
+    rescue => e
+      render plain: "Wiki システムとの通信に失敗しました：#{ e.message }", status: 502
+    end
+  end
+
+  private
+
+  def fetch_with_redirect uri_str, limit = 5
+    raise 'Too many redirects' if limit == 0
+
+    uri = URI.parse(uri_str)
+    res = Net::HTTP.get_response(uri)
+    if res.is_a? Net::HTTPRedirection
+      location = res['location']
+      fetch_with_redirect(location, limit - 1)
+    else
+      res
+    end
+  end
+end

backend/config/routes.rb

@@ -54,6 +54,7 @@ Rails.application.routes.draw do
   get "ip_addresses/destroy"
   get 'preview/title', to: 'preview#title'
   get 'preview/thumbnail', to: 'preview#thumbnail'
+  get '/wiki/edit/:tag', to: 'wiki_proxy#edit'
   root 'home#index'
 
   resources :posts