fixed error with comments saving twice on the same pod

app/models/comment.rb

@@ -61,26 +61,28 @@ class Comment < ActiveRecord::Base
   end
 
   def receive(user, person)
-    commenter = self.person
-    unless self.post.person == user.person || self.verify_post_creator_signature
+    local_comment = Comment.where(:guid => self.guid).first
+    comment = local_comment || self
+
+    unless comment.post.person == user.person || comment.verify_post_creator_signature
       Rails.logger.info("event=receive status=abort reason='comment signature not valid' recipient=#{user.diaspora_handle} sender=#{self.post.person.diaspora_handle} payload_type=#{self.class} post_id=#{self.post_id}")
       return
     end
 
     #sign comment as the post creator if you've been hit UPSTREAM
-    if user.owns? self.post
-      self.post_creator_signature = self.sign_with_key(user.encryption_key)
-      self.save
+    if user.owns? comment.post
+      comment.post_creator_signature = comment.sign_with_key(user.encryption_key)
+      comment.save
     end
 
     #dispatch comment DOWNSTREAM, received it via UPSTREAM
-    unless user.owns?(self)
-      self.save
-      user.dispatch_comment(self)
+    unless user.owns?(comment)
+      comment.save
+      user.dispatch_comment(comment)
     end
 
-    self.socket_to_user(user, :aspect_ids => self.post.aspect_ids)
-    self
+    comment.socket_to_user(user, :aspect_ids => comment.post.aspect_ids)
+    comment
   end
 
   #ENCRYPTION

app/models/post.rb

@@ -82,7 +82,7 @@ class Post < ActiveRecord::Base
       else
         user.add_post_to_aspects(local_post)
         Rails.logger.info("event=receive payload_type=#{self.class} update=true status=complete sender=#{self.diaspora_handle} existing_post=#{local_post.id}")
-        self
+        local_post 
       end
     elsif !local_post
       self.save

lib/postzord/receiver.rb

@@ -28,8 +28,8 @@ module Postzord
     end
 
     def parse_and_receive(xml)
-      Rails.logger.info("event=receive status=start recipient=#{@user_person.diaspora_handle} payload_type=#{@object.class} sender=#{@sender.diaspora_handle}")
       @object ||= Diaspora::Parser.from_xml(xml)
+      Rails.logger.info("event=receive status=start recipient=#{@user_person.diaspora_handle} payload_type=#{@object.class} sender=#{@sender.diaspora_handle}")
       if self.validate_object
         receive_object
       end
@@ -37,8 +37,8 @@ module Postzord
 
     def receive_object
       obj = @object.receive(@user, @author)
-      Notification.notify(@user, @object, @author) if @object.respond_to?(:notification_type)
-      Rails.logger.info("event=receive status=complete recipient=#{@user_person.diaspora_handle} sender=#{@sender.diaspora_handle} payload_type#{@object.class}")
+      Notification.notify(@user, obj, @author) if obj.respond_to?(:notification_type)
+      Rails.logger.info("event=receive status=complete recipient=#{@user_person.diaspora_handle} sender=#{@sender.diaspora_handle} payload_type#{obj.class}")
       obj
     end
 

lib/webfinger.rb

@@ -31,7 +31,7 @@ class Webfinger
         raise WebfingerFailedError.new(@account)
       end
     rescue
-      Rails.logger.info("event=receive status=abort recipient=#{self.diaspora_handle} sender=#{salmon.author_email} reason='#{e.message}'")
+      Rails.logger.info("event=receive status=abort recipient=#{@account} sender=#{salmon.author_email} reason='#{e.message}'")
       nil
     end
   end

spec/intergration/receiving_spec.rb

@@ -154,55 +154,77 @@ describe 'a user receives a post' do
   end
 
   describe 'comments' do
-    before do
-      connect_users(@user1, @aspect, @user3, @aspect3)
-      @post = @user1.post :status_message, :message => "hello", :to => @aspect.id
 
-      xml = @post.to_diaspora_xml
+    context 'remote' do
+      before do
+        connect_users(@user1, @aspect, @user3, @aspect3)
+        @post = @user1.post :status_message, :message => "hello", :to => @aspect.id
 
-      receive_with_zord(@user2, @user1.person, xml)
-      receive_with_zord(@user3, @user1.person, xml)
+        xml = @post.to_diaspora_xml
 
-      @comment = @user3.comment('tada',:on => @post)
-      @comment.post_creator_signature = @comment.sign_with_key(@user1.encryption_key)
-      @xml = @comment.to_diaspora_xml
-      @comment.delete
+        receive_with_zord(@user2, @user1.person, xml)
+        receive_with_zord(@user3, @user1.person, xml)
+
+        @comment = @user3.comment('tada',:on => @post)
+        @comment.post_creator_signature = @comment.sign_with_key(@user1.encryption_key)
+        @xml = @comment.to_diaspora_xml
+        @comment.delete
+      end
+
+      it 'should correctly attach the user already on the pod' do
+        @user2.reload.raw_visible_posts.size.should == 1
+        post_in_db = StatusMessage.find(@post.id)
+        post_in_db.comments.should == []
+        receive_with_zord(@user2, @user1.person, @xml)
+
+        post_in_db.comments(true).first.person.should == @user3.person
+      end
+
+      it 'should correctly marshal a stranger for the downstream user' do
+        remote_person = @user3.person.dup
+        @user3.person.delete
+        @user3.delete
+        remote_person.id = nil
+
+        #stubs async webfinger
+        Person.should_receive(:by_account_identifier).twice.and_return{ |handle|
+          if handle == @user1.person.diaspora_handle
+            @user1.person.save
+            @user1.person
+          else
+            remote_person.profile = Factory(:profile)
+            remote_person.save!
+            remote_person
+          end
+        }
+
+        @user2.reload.raw_visible_posts.size.should == 1
+        post_in_db = StatusMessage.find(@post.id)
+        post_in_db.comments.should == []
+
+        receive_with_zord(@user2, @user1.person, @xml)
+
+        post_in_db.comments(true).first.person.should == remote_person
+      end
     end
 
-    it 'should correctly attach the user already on the pod' do
-      @user2.reload.raw_visible_posts.size.should == 1
-      post_in_db = StatusMessage.find(@post.id)
-      post_in_db.comments.should == []
-      receive_with_zord(@user2, @user1.person, @xml)
+    context 'local' do
+      before do
+        @post = @user1.post :status_message, :message => "hello", :to => @aspect.id
 
-      post_in_db.comments(true).first.person.should == @user3.person
-    end
+        xml = @post.to_diaspora_xml
 
-    it 'should correctly marshal a stranger for the downstream user' do
-      remote_person = @user3.person.dup
-      @user3.person.delete
-      @user3.delete
-      remote_person.id = nil
+        receive_with_zord(@user2, @user1.person, xml)
 
-      #stubs async webfinger
-      Person.should_receive(:by_account_identifier).twice.and_return{ |handle|
-        if handle == @user1.person.diaspora_handle
-          @user1.person.save
-          @user1.person
-        else
-          remote_person.profile = Factory(:profile)
-          remote_person.save!
-          remote_person
-        end
-      }
+        @comment = @user2.comment('tada',:on => @post)
+        @xml = @comment.to_diaspora_xml
+      end
 
-      @user2.reload.raw_visible_posts.size.should == 1
-      post_in_db = StatusMessage.find(@post.id)
-      post_in_db.comments.should == []
-
-      receive_with_zord(@user2, @user1.person, @xml)
-
-      post_in_db.comments(true).first.person.should == remote_person
+      it 'does not raise a `Mysql2::Error: Duplicate entry...` exception on save' do
+        #lambda {
+            receive_with_zord(@user1, @user2.person, @xml)
+        #}.should_not raise_exception
+      end
     end
   end
 

spec/lib/postzord/receiver_spec.rb

@@ -86,7 +86,8 @@ describe Postzord::Receiver do
 
     it 'calls Notification.notify if object responds to notification_type' do
       cm = Comment.new
-      cm.stub!(:receive)
+      cm.stub!(:receive).and_return(cm)
+
       Notification.should_receive(:notify).with(@user, cm, @person2)
       zord = Postzord::Receiver.new(@user, :person => @person2, :object => cm)
       zord.receive_object