use the parent author as salmon sender, if the parent author is local

lib/diaspora/federation/dispatcher.rb

@@ -10,6 +10,7 @@ module Diaspora
       end
 
       def self.build(sender, object, opts={})
+        sender = object.try(:sender_for_dispatch) || sender
         if object.try(:public?)
           Public.new(sender, object, opts)
         else

lib/diaspora/relayable.rb

@@ -40,6 +40,11 @@ module Diaspora
       end
     end
 
+    # @deprecated This is only needed for pre 0.6 pods
+    def sender_for_dispatch
+      parent.author.owner if parent.author.local?
+    end
+
     # @abstract
     def parent
       raise NotImplementedError.new('you must override parent in order to enable relayable on this model')

spec/lib/diaspora/federation/dispatcher_spec.rb

@@ -32,6 +32,27 @@ describe Diaspora::Federation::Dispatcher do
 
       expect(dispatcher).to be_instance_of(Diaspora::Federation::Dispatcher::Private)
     end
+
+    it "uses the parent author as sender for a comment if the parent is local" do
+      comment = FactoryGirl.create(:comment, author: bob.person, post: post)
+
+      expect(Diaspora::Federation::Dispatcher::Public).to receive(:new).with(alice, comment, {}).and_call_original
+
+      dispatcher = described_class.build(bob, comment)
+
+      expect(dispatcher).to be_instance_of(Diaspora::Federation::Dispatcher::Public)
+    end
+
+    it "uses the original sender for a comment if the parent is not local" do
+      remote_post = FactoryGirl.create(:status_message, author: remote_raphael, text: "hello", public: true)
+      comment = FactoryGirl.create(:comment, author: bob.person, post: remote_post)
+
+      expect(Diaspora::Federation::Dispatcher::Public).to receive(:new).with(bob, comment, {}).and_call_original
+
+      dispatcher = described_class.build(bob, comment)
+
+      expect(dispatcher).to be_instance_of(Diaspora::Federation::Dispatcher::Public)
+    end
   end
 
   describe ".defer_dispatch" do