Bump rubocop from 1.44.1 to 1.56.0

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.44.1 to 1.56.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop/compare/v1.44.1...v1.56.0)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -105,6 +105,7 @@ GEM
       aws-sigv4 (~> 1.4)
     aws-sigv4 (1.5.2)
       aws-eventstream (~> 1, >= 1.0.2)
+    base64 (0.1.1)
     bcrypt (3.1.17)
     better_errors (2.9.1)
       coderay (>= 1.0.0)
@@ -367,6 +368,7 @@ GEM
       marcel (~> 1.0.1)
       mime-types
       terrapin (~> 0.6.0)
+    language_server-protocol (3.17.0.3)
     launchy (2.5.0)
       addressable (~> 2.7)
     letter_opener (1.8.1)
@@ -462,9 +464,10 @@ GEM
       openssl (> 2.0, < 3.1)
     orm_adapter (0.5.0)
     ox (2.14.14)
-    parallel (1.22.1)
+    parallel (1.23.0)
-    parser (3.2.0.0)
+    parser (3.2.2.3)
       ast (~> 2.4.1)
+      racc
     parslet (2.0.0)
     pastel (0.8.0)
       tty-color (~> 0.5)
@@ -560,7 +563,7 @@ GEM
       redis (>= 4)
     redlock (1.3.2)
       redis (>= 3.0.0, < 6.0)
-    regexp_parser (2.6.2)
+    regexp_parser (2.8.1)
     request_store (1.5.1)
       rack (>= 1.4)
     responders (3.0.1)
@@ -595,18 +598,20 @@ GEM
     rspec-support (3.11.1)
     rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
-    rubocop (1.44.1)
+    rubocop (1.56.0)
+      base64 (~> 0.1.1)
       json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.0.0)
+      parser (>= 3.2.2.3)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.24.1, < 2.0)
+      rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.24.1)
+    rubocop-ast (1.29.0)
-      parser (>= 3.1.1.0)
+      parser (>= 3.2.1.0)
     rubocop-capybara (2.17.0)
       rubocop (~> 1.41)
     rubocop-performance (1.16.0)

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', full_asset_url(thumbnail&.file&.url(:'@1x') || asset_pack_path('media/images/preview.png', protocol: :request))
-= opengraph 'og:image:width', thumbnail ? thumbnail.meta['width'] : '500'
+= opengraph 'og:image:width', thumbnail ? thumbnail.meta['width'] : '1200'
-= opengraph 'og:image:height', thumbnail ? thumbnail.meta['height'] : '573'
+= 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;