Add support for dereferencing objects through bearcaps (#14683)

1 files changed, 11 insertions, 5 deletions

diff --git a/app/lib/activitypub/activity.rb b/app/lib/activitypub/activity.rb
index a379a7ef431..94aee7939fc 100644
--- a/app/lib/activitypub/activity.rb
+++ b/app/lib/activitypub/activity.rb
@@ -71,7 +71,15 @@ class ActivityPub::Activity
   end
 
   def object_uri
-    @object_uri ||= value_or_id(@object)
+    @object_uri ||= begin
+      str = value_or_id(@object)
+
+      if str.start_with?('bear:')
+        Addressable::URI.parse(str).query_values['u']
+      else
+        str
+      end
+    end
   end
 
   def unsupported_object_type?
@@ -159,12 +167,10 @@ class ActivityPub::Activity
 
   def dereference_object!
     return unless @object.is_a?(String)
-    return if invalid_origin?(@object)
 
-    object = fetch_resource(@object, true, signed_fetch_account)
-    return unless object.present? && object.is_a?(Hash) && supported_context?(object)
+    dereferencer = ActivityPub::Dereferencer.new(@object, permitted_origin: @account.uri, signature_account: signed_fetch_account)
 
-    @object = object
+    @object = dereferencer.object unless dereferencer.object.nil?
   end
 
   def signed_fetch_account