Inline instrument quote post in outgoing QuoteRequest activities (#35713)

app/serializers/activitypub/quote_request_serializer.rb

@@ -1,11 +1,22 @@
 # frozen_string_literal: true
 
 class ActivityPub::QuoteRequestSerializer < ActivityPub::Serializer
+  def self.serializer_for(model, options)
+    case model.class.name
+    when 'Status'
+      ActivityPub::NoteSerializer
+    else
+      super
+    end
+  end
+
   context_extensions :quote_requests
 
-  attributes :id, :type, :actor, :instrument
+  attributes :id, :type, :actor
   attribute :virtual_object, key: :object
 
+  has_one :instrument
+
   def id
     object.activity_uri
   end
@@ -23,7 +34,6 @@ class ActivityPub::QuoteRequestSerializer < ActivityPub::Serializer
   end
 
   def instrument
-    # TODO: inline object?
+    instance_options[:allow_post_inlining] && object.status.local? ? object.status : ActivityPub::TagManager.instance.uri_for(object.status)
-    ActivityPub::TagManager.instance.uri_for(object.status)
   end
 end

app/workers/activitypub/quote_request_worker.rb

@@ -17,6 +17,6 @@ class ActivityPub::QuoteRequestWorker < ActivityPub::RawDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(@quote, ActivityPub::QuoteRequestSerializer, signer: @account))
+    @payload ||= Oj.dump(serialize_payload(@quote, ActivityPub::QuoteRequestSerializer, signer: @account, allow_post_inlining: true))
   end
 end

spec/workers/activitypub/quote_request_worker_spec.rb

@@ -23,7 +23,9 @@ RSpec.describe ActivityPub::QuoteRequestWorker do
         type: 'QuoteRequest',
         actor: ActivityPub::TagManager.instance.uri_for(quote.account),
         object: ActivityPub::TagManager.instance.uri_for(quoted_status),
-        instrument: anything # TODO: inline post in request?
+        instrument: a_hash_including(
+          id: ActivityPub::TagManager.instance.uri_for(status)
+        )
       )
     end
   end