participates root author when receiving a reshare

app/models/reshare.rb

@@ -63,6 +63,12 @@ class Reshare < Post
     @absolute_root
   end
 
+  def receive(recipient_user_ids)
+    super(recipient_user_ids)
+
+    root.author.owner.participate!(self) if root.author.local?
+  end
+
   def subscribers
     super + [root.author]
   end

spec/integration/federation/receive_federation_messages_spec.rb

@@ -34,6 +34,11 @@ describe "Receive federation messages feature" do
         post = FactoryGirl.create(:status_message, author: alice.person, public: true)
         reshare = FactoryGirl.build(
           :reshare_entity, root_author: alice.diaspora_handle, root_guid: post.guid, author: sender_id)
+
+        expect(Participation::Generator).to receive(:new).with(
+          alice, instance_of(Reshare)
+        ).and_return(double(create!: true))
+
         post_message(generate_xml(reshare, sender))
 
         expect(Reshare.exists?(root_guid: post.guid)).to be_truthy

spec/models/reshare_spec.rb

@@ -33,6 +33,15 @@ describe Reshare, type: :model do
     end
   end
 
+  describe "#receive" do
+    let(:reshare) { create(:reshare, root: FactoryGirl.build(:status_message, author: bob.person, public: true)) }
+
+    it "participates root author in the reshare" do
+      reshare.receive([])
+      expect(Participation.count(target_id: reshare.id, author_id: bob.person.id)).to eq(1)
+    end
+  end
+
   describe "#nsfw" do
     let(:sfw) { build(:status_message, author: alice.person, public: true) }
     let(:nsfw) { build(:status_message, author: alice.person, public: true, text: "This is #nsfw") }