[FIX] #6642 Strip Markdown from conversation title

closes #6642

Changelog.md

@@ -138,6 +138,7 @@ before.
 * Do not allow to change email to an already used one [#6905](https://github.com/diaspora/diaspora/pull/6905)
 * Correctly filter mentions on the server side [#6902](https://github.com/diaspora/diaspora/pull/6902)
 * Add aspects to the aspect membership dropdown when creating them on the getting started page [#6864](https://github.com/diaspora/diaspora/pull/6864)
+* Strip markdown from message preview in conversations list [#6923](https://github.com/diaspora/diaspora/pull/6923)
 
 ## Features
 * Support color themes [#6033](https://github.com/diaspora/diaspora/pull/6033)

app/views/conversations/_conversation.haml

@@ -32,7 +32,7 @@
         .last_message
           - if conversation.messages.present?
             %em
-              = conversation.messages.last.text
+              = conversation.messages.last.message.plain_text_without_markdown
         - if other_participants.count > 1
           .participants
             - other_participants.drop(1).take(15).each do |participant|

spec/controllers/conversations_controller_spec.rb

@@ -64,7 +64,7 @@ describe ConversationsController, :type => :controller do
         author:              alice.person,
         participant_ids:     [alice.contacts.first.person.id, alice.person.id],
         subject:             "not spam",
-        messages_attributes: [{author: alice.person, text: "cool stuff"}]
+        messages_attributes: [{author: alice.person, text: "**cool stuff**"}]
       }
       @conversations = Array.new(3) { Conversation.create(hash) }
       @visibilities = @conversations.map {|conversation|
@@ -102,6 +102,14 @@ describe ConversationsController, :type => :controller do
       get :index, conversation_id: @conversations.first.id
       expect(assigns[:conversation]).to be_nil
     end
+
+    it "retrieves a conversation message with out markdown content " do
+      get :index
+      @conversation = @conversations.first
+      expect(response).to be_success
+      expect(response.body).to match(/cool stuff/)
+      expect(response.body).not_to match(%r{<strong>cool stuff</strong>})
+    end
   end
 
   describe '#create' do