Gab Social. All are welcome.

app/controllers/stream_entries_controller.rb

@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+class StreamEntriesController < ApplicationController
+  include Authorization
+  include SignatureVerification
+
+  layout 'public'
+
+  before_action :set_account
+  before_action :set_stream_entry
+  before_action :set_link_headers
+  before_action :check_account_suspension
+  before_action :set_cache_headers
+
+  def show
+    respond_to do |format|
+      format.html do
+        unless user_signed_in?
+          skip_session!
+          expires_in 5.minutes, public: true
+        end
+
+        redirect_to short_account_status_url(params[:account_username], @stream_entry.activity) if @type == 'status'
+      end
+
+      format.atom do
+        unless @stream_entry.hidden?
+          skip_session!
+          expires_in 3.minutes, public: true
+        end
+
+        render xml: OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.entry(@stream_entry, true))
+      end
+    end
+  end
+
+  def embed
+    redirect_to embed_short_account_status_url(@account, @stream_entry.activity), status: 301
+  end
+
+  private
+
+  def set_account
+    @account = Account.find_local!(params[:account_username])
+  end
+
+  def set_link_headers
+    response.headers['Link'] = LinkHeader.new(
+      [
+        [account_stream_entry_url(@account, @stream_entry, format: 'atom'), [%w(rel alternate), %w(type application/atom+xml)]],
+        [ActivityPub::TagManager.instance.uri_for(@stream_entry.activity), [%w(rel alternate), %w(type application/activity+json)]],
+      ]
+    )
+  end
+
+  def set_stream_entry
+    @stream_entry = @account.stream_entries.where(activity_type: 'Status').find(params[:id])
+    @type         = @stream_entry.activity_type.downcase
+
+    raise ActiveRecord::RecordNotFound if @stream_entry.activity.nil?
+    authorize @stream_entry.activity, :show? if @stream_entry.hidden?
+  rescue GabSocial::NotPermittedError
+    # Reraise in order to get a 404
+    raise ActiveRecord::RecordNotFound
+  end
+
+  def check_account_suspension
+    gone if @account.suspended?
+  end
+end