FEATURE: RSS feed for user posts and topics

app/controllers/list_controller.rb

@@ -35,6 +35,8 @@ class ListController < ApplicationController
     Discourse.anonymous_filters.map { |f| :"parent_category_category_none_#{f}" },
     # category feeds
     :category_feed,
+    # user topics feed
+    :user_topics_feed,
     # top summaries
     :top,
     :category_top,
@@ -154,6 +156,19 @@ class ListController < ApplicationController
     render 'list', formats: [:rss]
   end
 
+  def user_topics_feed
+    discourse_expires_in 1.minute
+    target_user = fetch_user_from_params
+
+    @title = "#{SiteSetting.title} - #{I18n.t("rss_description.user_topics", username: target_user.username)}"
+    @link = "#{Discourse.base_url}/users/#{target_user.username}/activity/topics"
+    @atom_link = "#{Discourse.base_url}/users/#{target_user.username}/activity/topics.rss"
+    @description = I18n.t("rss_description.user_topics", username: target_user.username)
+    @topic_list = TopicQuery.new(nil, order: 'created').send("list_topics_by", target_user)
+
+    render 'list', formats: [:rss]
+  end
+
   def top(options=nil)
     options ||= {}
     period = ListController.best_period_for(current_user.try(:previous_visit_at), options[:category])

app/controllers/posts_controller.rb

@@ -7,9 +7,9 @@ require_dependency 'new_post_result_serializer'
 class PostsController < ApplicationController
 
   # Need to be logged in for all actions here
-  before_filter :ensure_logged_in, except: [:show, :replies, :by_number, :short_link, :reply_history, :revisions, :latest_revision, :expand_embed, :markdown_id, :markdown_num, :cooked, :latest]
+  before_filter :ensure_logged_in, except: [:show, :replies, :by_number, :short_link, :reply_history, :revisions, :latest_revision, :expand_embed, :markdown_id, :markdown_num, :cooked, :latest, :user_posts_feed]
 
-  skip_before_filter :preload_json, :check_xhr, only: [:markdown_id, :markdown_num, :short_link, :latest]
+  skip_before_filter :preload_json, :check_xhr, only: [:markdown_id, :markdown_num, :short_link, :latest, :user_posts_feed]
 
   def markdown_id
     markdown Post.find(params[:id].to_i)
@@ -86,6 +86,26 @@ class PostsController < ApplicationController
     end
   end
 
+  def user_posts_feed
+    params.require(:username)
+    user = fetch_user_from_params
+
+    posts = Post.public_posts
+                .where(user_id: user.id)
+                .order(created_at: :desc)
+                .includes(:user)
+                .includes(topic: :category)
+                .limit(50)
+
+    posts = posts.reject { |post| !guardian.can_see?(post) || post.topic.blank? }
+
+    @posts = posts
+    @title = "#{SiteSetting.title} - #{I18n.t("rss_description.user_posts", username: user.username)}"
+    @link = "#{Discourse.base_url}/users/#{user.username}/activity"
+    @description = I18n.t("rss_description.user_posts", username: user.username)
+    render 'posts/latest', formats: [:rss]
+  end
+
   def cooked
     post = find_post_from_params
     render json: {cooked: post.cooked}

config/locales/server.en.yml

@@ -207,6 +207,8 @@ en:
     private_posts: "Latest private messages"
     group_posts: "Latest posts from %{group_name}"
     group_mentions: "Latest mentions from %{group_name}"
+    user_posts: "Latest posts by @%{username}"
+    user_topics: "Latest topics by @%{username}"
   too_late_to_edit: "That post was created too long ago. It can no longer be edited or deleted."
   revert_version_same: "The current version is same as the version you are trying to revert to."
 

config/routes.rb

@@ -314,6 +314,11 @@ Discourse::Application.routes.draw do
   get "users/:username/invited/:filter" => "users#invited", constraints: {username: USERNAME_ROUTE_FORMAT}
   post "users/action/send_activation_email" => "users#send_activation_email"
   get "users/:username/summary" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
+
+  # user activity RSS feed
+  get "users/:username/activity/topics.rss" => "list#user_topics_feed", format: :rss, constraints: {username: USERNAME_ROUTE_FORMAT}
+  get "users/:username/activity.rss" => "posts#user_posts_feed", format: :rss, constraints: {username: USERNAME_ROUTE_FORMAT}
+
   get "users/:username/activity" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/:username/activity/:filter" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/:username/badges" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}

spec/controllers/posts_controller_spec.rb

@@ -108,6 +108,24 @@ describe PostsController do
     end
   end
 
+  describe 'user_posts_feed' do
+    let(:user) { log_in }
+    let!(:public_topic) { Fabricate(:topic) }
+    let!(:post) { Fabricate(:post, user: user, topic: public_topic) }
+    let!(:private_topic) { Fabricate(:topic, archetype: Archetype.private_message, category: nil) }
+    let!(:private_post) { Fabricate(:post, user: user, topic: private_topic) }
+    let!(:topicless_post) { Fabricate(:post, user: user, raw: '<p>Car 54, where are you?</p>') }
+
+    it 'returns public posts with topic for rss' do
+      topicless_post.update topic_id: -100
+      xhr :get, :user_posts_feed, username: user.username, format: :rss
+      expect(response).to be_success
+      expect(assigns(:posts)).to include post
+      expect(assigns(:posts)).to_not include private_post
+      expect(assigns(:posts)).to_not include topicless_post
+    end
+  end
+
   describe 'cooked' do
     before do
       post = Post.new(cooked: 'wat')