FIX: Another email regexp for quote lines in the format we can recognize including

the site name.

lib/email/receiver.rb

@@ -93,6 +93,7 @@ module Email
       email_year = lines.each_with_index do |l, idx|
         break if l =~ /\A\s*\-{3,80}\s*\z/ ||
                  l =~ Regexp.new("\\A\\s*" + I18n.t('user_notifications.previous_discussion') + "\\s*\\Z") ||
+                 (l =~ /via #{SiteSetting.title}(.*)\:$/) ||
                  # This one might be controversial but so many reply lines have years, times and end with a colon.
                  # Let's try it and see how well it works.
                  (l =~ /\d{4}/ && l =~ /\d:\d\d/ && l =~ /\:$/)

spec/components/email/receiver_spec.rb

@@ -50,6 +50,16 @@ stripped from my reply?")
     end
   end
 
+  describe "via" do
+    let(:wrote) { File.read("#{Rails.root}/spec/fixtures/emails/via_line.eml") }
+    let(:receiver) { Email::Receiver.new(wrote) }
+
+    it "removes via lines if we know them" do
+      receiver.process
+      expect(receiver.body).to eq("Hello this email has content!")
+    end
+  end
+
   describe "if wrote is on a second line" do
     let(:wrote) { File.read("#{Rails.root}/spec/fixtures/emails/multiline_wrote.eml") }
     let(:receiver) { Email::Receiver.new(wrote) }

spec/fixtures/emails/via_line.eml

@@ -0,0 +1,25 @@
+
+Delivered-To: discourse-reply+cd480e301683c9902891f15968bf07a5@discourse.org
+Received: by 10.194.216.104 with SMTP id op8csp80593wjc;
+        Wed, 24 Jul 2013 07:59:14 -0700 (PDT)
+Return-Path: <walter.white@googlemail.com>
+References: <topic/5043@discourse.org> <51efeb9b36c34_66dc2dfce6811866@discourse.mail>
+From: Walter White <walter.white@googlemail.com>
+In-Reply-To: <51efeb9b36c34_66dc2dfce6811866@discourse.mail>
+Mime-Version: 1.0 (1.0)
+Date: Wed, 24 Jul 2013 15:59:10 +0100
+Message-ID: <4597127794206131679@unknownmsgid>
+Subject: Re: [Discourse] new reply to your post in 'Crystal Blue'
+To: walter via Discourse <discourse-reply+cd480e301683c9902891f15968bf07a5@discourse.org>
+Content-Type: multipart/alternative; boundary=001a11c20edc15a39304e2432790
+
+Hello this email has content!
+
+codinghorror via Discourse wrote:
+> [codinghorror]  codinghorror
+> <http://meta.discourse.org/users/codinghorror>
+> August 7
+>
+> It wouldn't be great at the moment for 100% email, since there's no
+> way to be notified of new topics via email. (you can get notified of
+> new replies to your posts and topics via email, and reply to them.)