Add rss feed for latest and hot

app/controllers/list_controller.rb

@@ -1,6 +1,6 @@
 class ListController < ApplicationController
 
-  before_filter :ensure_logged_in, except: [:latest, :hot, :category, :category_feed]
+  before_filter :ensure_logged_in, except: [:latest, :hot, :category, :category_feed, :latest_feed, :hot_feed]
   before_filter :set_category, only: [:category, :category_feed]
   skip_before_filter :check_xhr
 
@@ -15,6 +15,19 @@ class ListController < ApplicationController
     end
   end
 
+  [:latest, :hot].each do |filter|
+    define_method("#{filter}_feed") do
+      anonymous_etag(@category) do
+        @title = "#{filter.capitalize} Topics"
+        @link = "#{Discourse.base_url}/#{filter}"
+        @description = I18n.t("rss_description.#{filter}")
+        @atom_link = "#{Discourse.base_url}/#{filter}.rss"
+        @topic_list = TopicQuery.new(current_user).public_send("list_#{filter}")
+        render 'list', formats: [:rss]
+      end
+    end
+  end
+
   def category
     query = TopicQuery.new(current_user, page: params[:page])
 
@@ -36,6 +49,10 @@ class ListController < ApplicationController
     guardian.ensure_can_see!(@category)
 
     anonymous_etag(@category) do
+      @title = @category.name
+      @link = "#{Discourse.base_url}/category/#{@category.slug}"
+      @description = "#{I18n.t('topics_in_category', category: @category.name)} #{@category.description}"
+      @atom_link = "#{Discourse.base_url}/category/#{@category.slug}.rss"
       @topic_list = TopicQuery.new.list_new_in_category(@category)
       render 'list', formats: [:rss]
     end

app/views/list/list.rss.erb

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
   <channel>
-    <title><%= @category.name %></title>
+    <title><%= @title %></title>
-    <link><%= Discourse.base_url %>/category/<%= @category.slug %></link>
+    <link><%= @link %></link>
-    <description><%= t 'topics_in_category', category: @category.name %><%= @category.description %></description>
+    <description><%= @description %></description>
-    <atom:link href="<%= Discourse.base_url %>/category/<%= @category.slug %>.rss" rel="self" type="application/rss+xml" />
+    <atom:link href="<%= @atom_link %>" rel="self" type="application/rss+xml" />
     <% @topic_list.topics.each do |topic| %>
       <item>
         <title><%= topic.title %></title>

config/locales/server.en.yml

@@ -56,6 +56,9 @@ en:
   rss_topics_in_category: "RSS feed of topics in the '%{category}' category"
   author_wrote: "%{author} wrote:"
   private_message_abbrev: "PM"
+  rss_description:
+    latest: "Latest topics"
+    hot: "Hot topics"
 
   groups:
     errors:

config/routes.rb

@@ -179,6 +179,10 @@ Discourse::Application.routes.draw do
   get 'popular' => 'list#popular_redirect'
   get 'popular/more' => 'list#popular_redirect'
 
+  [:latest, :hot].each do |filter|
+    get "#{filter}.rss" => "list##{filter}_feed", format: :rss, as: "#{filter}_feed", filter: filter
+  end
+
   [:latest, :hot, :favorited, :read, :posted, :unread, :new].each do |filter|
     get "#{filter}" => "list##{filter}"
     get "#{filter}/more" => "list##{filter}"