Miscellaneous fixes from PR#3000

FIX: Don't require login to view post raw
FIX: Don't submit read-guidelines for anonymous users (causes
unnecessary 403 errors from ensure_logged_in)
FIX: Don't pass nil to an array serializer

app/assets/javascripts/discourse/controllers/static.js.es6

@@ -3,7 +3,9 @@ export default Em.ObjectController.extend({
 
   actions: {
     markFaqRead: function() {
+      if (Discourse.User.current()) {
         Discourse.ajax("/users/read-faq", { method: "POST" });
       }
     }
+  }
 });

app/controllers/topics_controller.rb

@@ -55,9 +55,11 @@ class TopicsController < ApplicationController
     begin
       @topic_view = TopicView.new(params[:id] || params[:topic_id], current_user, opts)
     rescue Discourse::NotFound
-      topic = Topic.find_by(slug: params[:id].downcase) if params[:id]
+      if params[:id]
-      raise Discourse::NotFound unless topic
+        topic = Topic.find_by(slug: params[:id].downcase)
-      redirect_to_correct_topic(topic, opts[:post_number]) && return
+        return redirect_to_correct_topic(topic, opts[:post_number]) if topic
+      end
+      raise Discourse::NotFound
     end
 
     page = params[:page].to_i
@@ -150,8 +152,9 @@ class TopicsController < ApplicationController
     [:title, :raw].each { |key| check_length_of(key, params[key]) }
 
     # Only suggest similar topics if the site has a minimum amount of topics present.
-    topics = Topic.similar_to(title, raw, current_user).to_a if Topic.count_exceeds_minimum?
+    return render json: [] unless Topic.count_exceeds_minimum?
 
+    topics = Topic.similar_to(title, raw, current_user).to_a
     render_serialized(topics, BasicTopicSerializer)
   end
 

spec/controllers/posts_controller_spec.rb

@@ -799,4 +799,26 @@ describe PostsController do
 
   end
 
+  describe "view raw" do
+    describe "by ID" do
+      it "can be viewed by anonymous" do
+        post = Fabricate(:post, raw: "123456789")
+        xhr :get, :markdown_id, id: post.id
+        response.should be_success
+        response.body.should == "123456789"
+      end
+    end
+
+    describe "by post number" do
+      it "can be viewed by anonymous" do
+        topic = Fabricate(:topic)
+        post = Fabricate(:post, topic: topic, post_number: 1, raw: "123456789")
+        post.save
+        xhr :get, :markdown_num, topic_id: topic.id, post_number: 1
+        response.should be_success
+        response.body.should == "123456789"
+      end
+    end
+  end
+
 end