Bump nokogiri from 1.14.5 to 1.15.4

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.14.5 to 1.15.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.14.5...v1.15.4)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -60,7 +60,7 @@ gem 'idn-ruby', require: 'idn'
 gem 'kaminari', '~> 1.2'
 gem 'link_header', '~> 0.0'
 gem 'mime-types', '~> 3.4.1', require: 'mime/types/columnar'
-gem 'nokogiri', '~> 1.14'
+gem 'nokogiri', '~> 1.15'
 gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.13'
 gem 'ox', '~> 2.14'

Gemfile.lock

@@ -405,7 +405,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2022.0105)
     mini_mime (1.1.2)
-    mini_portile2 (2.8.2)
+    mini_portile2 (2.8.4)
     minitest (5.17.0)
     msgpack (1.6.0)
     multi_json (1.15.0)
@@ -424,8 +424,8 @@ GEM
       net-protocol
     net-ssh (7.0.1)
     nio4r (2.5.9)
-    nokogiri (1.14.5)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.15.4)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     nsa (0.2.8)
       activesupport (>= 4.2, < 7)
@@ -496,7 +496,7 @@ GEM
     pundit (2.3.0)
       activesupport (>= 3.0.0)
     raabro (1.4.0)
-    racc (1.6.2)
+    racc (1.7.1)
     rack (2.2.7)
     rack-attack (6.6.1)
       rack (>= 1.0, < 3)
@@ -822,7 +822,7 @@ DEPENDENCIES
   memory_profiler
   mime-types (~> 3.4.1)
   net-ldap (~> 0.17)
-  nokogiri (~> 1.14)
+  nokogiri (~> 1.15)
   nsa (~> 0.2)
   oj (~> 3.13)
   omniauth (~> 1.9)

app/controllers/api/v1/json_ld_controller.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "faraday"
-require "uri"
 
 class Api::V1::JsonLdController < Api::BaseController
   include ActionController::Live
@@ -10,40 +9,6 @@ class Api::V1::JsonLdController < Api::BaseController
     render json: { error: e.to_s }, status: 422
   end
 
-  before_action :require_user!
-
-  REQUEST_TARGET = '(request-target)'
-
-  def signature(headers)
-    account = Account.representative
-
-    key_id = ActivityPub::TagManager.instance.key_uri_for(account)
-    algorithm = 'rsa-sha256'
-    signed_string = headers.map { |key, value| "#{key.downcase}: #{value}" }.join("\n")
-    signature = Base64.strict_encode64(account.keypair.sign(OpenSSL::Digest.new('SHA256'), signed_string))
-
-    "keyId=\"#{key_id}\",algorithm=\"#{algorithm}\",headers=\"#{headers.keys.join(' ').downcase}\",signature=\"#{signature}\""
-  end
-
-  def signed_headers(url_string)
-    if url_string.include?(".well-known")
-      return {'Accept': 'application/jrd+json'}
-    end
-
-    url = URI.parse(url_string)
-    tmp_headers = {
-      'Date': Time.now.utc.httpdate,
-      'Host': url.host,
-      'Accept': 'application/activity+json, application/ld+json; profile="https://www.w3.org/ns/activitystreams"',
-    }
-    tmp_headers[REQUEST_TARGET] = "get #{url_string.delete_prefix("#{url.scheme}://#{url.host}")}"
-    additional_headers = {
-      'Signature': signature(tmp_headers),
-      'User-Agent': Mastodon::Version.user_agent,
-    }
-    tmp_headers.merge(additional_headers).except(REQUEST_TARGET)
-  end
-
   def show
     url = params[:url]
 
@@ -52,12 +17,13 @@ class Api::V1::JsonLdController < Api::BaseController
     Thread.new {
       begin
         conn = Faraday::Connection.new
+        conn.options.timeout = 5
 
-        api_response = conn.get(url, nil, signed_headers(url))
+        api_response = conn.get(url, nil, {'Accept' => 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'})
 
         max_redirects = 5
         while api_response.status == 301 || api_response.status == 302 and max_redirects > 0 do
-          api_response = conn.get(api_response.headers['Location'], nil, signed_headers(api_response.headers['Location']))
+          api_response = conn.get(api_response.headers['Location'], nil, {'Accept' => 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'})
           max_redirects -= 1
         end
 

app/views/shared/_og.html.haml

@@ -1,14 +1,14 @@
 - thumbnail     = @instance_presenter.thumbnail
-- description = 'Learn ActivityPub interactively, by seeing protocol interactions visualized in real time'
+- description ||= @instance_presenter.description.presence || strip_tags(t('about.about_mastodon_html'))
 
 %meta{ name: 'description', content: description }/
 
-= opengraph 'og:site_name', 'ActivityPub Academy - A learning resource for ActivityPub'
+= opengraph 'og:site_name', t('about.hosted_on', domain: site_hostname)
 = opengraph 'og:url', url_for(only_path: false)
 = opengraph 'og:type', 'website'
-= opengraph 'og:title', 'ActivityPub Academy'
+= opengraph 'og:title', @instance_presenter.title
 = opengraph 'og:description', description
-= opengraph 'og:image', full_asset_url(thumbnail&.file&.url(:'@1x') || asset_pack_path('media/images/academy-mascot.webp', protocol: :request))
-= opengraph 'og:image:width', thumbnail ? thumbnail.meta['width'] : '500'
-= opengraph 'og:image:height', thumbnail ? thumbnail.meta['height'] : '573'
+= opengraph 'og:image', full_asset_url(thumbnail&.file&.url(:'@1x') || asset_pack_path('media/images/preview.png', protocol: :request))
+= opengraph 'og:image:width', thumbnail ? thumbnail.meta['width'] : '1200'
+= opengraph 'og:image:height', thumbnail ? thumbnail.meta['height'] : '630'
 = opengraph 'twitter:card', 'summary_large_image'

dist/nginx.conf

@@ -114,27 +114,6 @@ server {
     tcp_nodelay on;
   }
 
-  location ^~ /api/v1/json_ld {
-    proxy_set_header Host $host;
-    proxy_set_header X-Real-IP $remote_addr;
-    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    proxy_set_header X-Forwarded-Proto https;
-    proxy_set_header Proxy "";
-    proxy_pass_header Server;
-
-    proxy_pass http://backend;
-    proxy_redirect off;
-    proxy_http_version 1.1;
-    proxy_set_header Upgrade $http_upgrade;
-    proxy_set_header Connection '';
-
-    proxy_cache off;
-    proxy_buffering off;
-    chunked_transfer_encoding off;
-
-    tcp_nodelay on;
-  }
-
   location ^~ /api/v1/activity_log {
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;