Improving feed queries, switching API to doorkeeper authentication

Gemfile

@@ -30,7 +30,12 @@ gem 'rails_autolink'
 gem 'doorkeeper'
 gem 'rabl'
 gem 'oj'
+gem 'hiredis'
 gem 'redis', '~>3.2'
+gem 'fast_blank'
+gem 'htmlentities'
+gem 'message_bus'
+gem 'onebox'
 
 group :development, :test do
   gem 'rspec-rails'
@@ -51,6 +56,7 @@ group :development do
   gem 'rubocop', require: false
   gem 'better_errors'
   gem 'binding_of_caller'
+  gem 'rack-mini-profiler'
 end
 
 group :production do

Gemfile.lock

@@ -85,6 +85,7 @@ GEM
     erubis (2.7.0)
     execjs (2.6.0)
     fabrication (2.14.1)
+    fast_blank (1.0.0)
     font-awesome-sass (4.5.0)
       sass (>= 3.2)
     fuubar (2.0.0)
@@ -105,11 +106,13 @@ GEM
       html2haml (>= 1.0.1)
       railties (>= 4.0.1)
     hashdiff (0.3.0)
+    hiredis (0.6.1)
     html2haml (2.0.0)
       erubis (~> 2.7.0)
       haml (~> 4.0.0)
       nokogiri (~> 1.6.0)
       ruby_parser (~> 3.5)
+    htmlentities (4.3.4)
     http (1.0.2)
       addressable (~> 2.3)
       http-cookie (~> 1.0)
@@ -133,15 +136,26 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
+    message_bus (1.1.1)
+      rack (>= 1.1.3)
+      redis
     method_source (0.8.2)
     mime-types (2.99)
     mimemagic (0.3.0)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
+    moneta (0.8.0)
     multi_json (1.11.2)
+    mustache (1.0.2)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
     oj (2.14.5)
+    onebox (1.5.35)
+      htmlentities (~> 4.3.4)
+      moneta (~> 0.8)
+      multi_json (~> 1.11)
+      mustache
+      nokogiri (~> 1.6.6)
     orm_adapter (0.5.0)
     ostatus2 (0.1.1)
       addressable (~> 2.4)
@@ -171,6 +185,8 @@ GEM
     rabl (0.12.0)
       activesupport (>= 2.3.14)
     rack (1.6.4)
+    rack-mini-profiler (0.9.9.2)
+      rack (>= 1.2.0)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.2.5.1)
@@ -309,15 +325,20 @@ DEPENDENCIES
   doorkeeper
   dotenv-rails
   fabrication
+  fast_blank
   font-awesome-sass
   fuubar
   goldfinger
   haml-rails
+  hiredis
+  htmlentities
   http
   jbuilder (~> 2.0)
   jquery-rails
+  message_bus
   nokogiri
   oj
+  onebox
   ostatus2
   paperclip (~> 4.3)
   paranoia (~> 2.0)
@@ -326,6 +347,7 @@ DEPENDENCIES
   puma
   quiet_assets
   rabl
+  rack-mini-profiler
   rails (= 4.2.5.1)
   rails_12factor
   rails_autolink

app/controllers/api/accounts_controller.rb

 class Api::AccountsController < ApiController
   before_action :set_account
-  before_action :authenticate_user!
+  before_action :doorkeeper_authorize!
   respond_to    :json
 
   def show

app/controllers/api/follows_controller.rb

 class Api::FollowsController < ApiController
-  before_action :authenticate_user!
+  before_action :doorkeeper_authorize!
   respond_to    :json
 
   def create

app/controllers/api/statuses_controller.rb

 class Api::StatusesController < ApiController
-  before_action :authenticate_user!
+  before_action :doorkeeper_authorize!
   respond_to    :json
 
   def show

app/controllers/api_controller.rb

@@ -4,7 +4,7 @@ class ApiController < ApplicationController
   protected
 
   def current_resource_owner
-    User.find(doorkeeper_token.user_id) if doorkeeper_token
+    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
   end
 
   def current_user

app/helpers/stream_entries_helper.rb

@@ -23,8 +23,9 @@ module StreamEntriesHelper
   def linkify(status)
     mention_hash = {}
     status.mentions.each { |m| mention_hash[m.acct] = m }
+    coder = HTMLEntities.new
 
-    auto_link(CGI.escapeHTML(status.text), link: :urls, html: { target: '_blank', rel: 'nofollow' }).gsub(Account::MENTION_RE) do |m|
+    auto_link(coder.encode(status.text), link: :urls, html: { target: '_blank', rel: 'nofollow' }).gsub(Account::MENTION_RE) do |m|
       account = mention_hash[Account::MENTION_RE.match(m)[1]]
       "#{m.split('@').first}<a href=\"#{url_for_target(account)}\" class=\"mention\">@<span>#{account.acct}</span></a>"
     end.html_safe

app/models/feed.rb

@@ -11,7 +11,7 @@ class Feed
     # If we're after most recent items and none are there, we need to precompute the feed
     return PrecomputeFeedService.new.(@type, @account).take(limit) if unhydrated.empty? && offset == 0
 
-    Status.where(id: unhydrated).each { |status| status_map[status.id.to_s] = status }
+    Status.where(id: unhydrated).with_includes.with_counters.each { |status| status_map[status.id.to_s] = status }
     return unhydrated.map { |id| status_map[id] }
   end
 

app/models/status.rb

@@ -14,6 +14,9 @@ class Status < ActiveRecord::Base
   validates :account, presence: true
   validates :uri, uniqueness: true, unless: 'local?'
 
+  scope :with_counters, -> { select('statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count') }
+  scope :with_includes, -> { includes(:account, reblog: :account, thread: :account) }
+
   def local?
     self.uri.nil?
   end

app/services/precompute_feed_service.rb

@@ -18,11 +18,11 @@ class PrecomputeFeedService < BaseService
   end
 
   def home(account)
-    Status.where(account: [account] + account.following)
+    Status.where(account: [account] + account.following).with_includes.with_counts
   end
 
   def mentions(account)
-    Status.where(id: Mention.where(account: account).pluck(:status_id))
+    Status.where(id: Mention.where(account: account).pluck(:status_id)).with_includes.with_counts
   end
 
   def key(type, id)

app/views/stream_entries/_status.html.haml

@@ -24,10 +24,10 @@
         .header__right
           .counter-btn{ class: reblogged_by_me_class(status) }
             %i.fa.fa-retweet
-            %span.counter-number= status.reblog? ? status.reblog.reblogs.count : status.reblogs.count
+            %span.counter-number= status.reblog? ? status.reblog.reblogs.count : status.reblogs_count
           .counter-btn{ class: favourited_by_me_class(status) }
             %i.fa.fa-star
-            %span.counter-number= status.reblog? ? status.reblog.favourites.count : status.favourites.count
+            %span.counter-number= status.reblog? ? status.reblog.favourites.count : status.favourites_count
       .content
         = status.reblog? ? (status.reblog.local? ? linkify(status.reblog) : status.reblog.content.html_safe) : (status.local? ? linkify(status) : status.content.html_safe)
 

config/initializers/doorkeeper.rb

@@ -7,6 +7,12 @@ Doorkeeper.configure do
     current_user || redirect_to(new_user_session_url)
   end
 
+  resource_owner_from_credentials do |routes|
+    request.params[:user] = { email: request.params[:username], password: request.params[:password] }
+    request.env["devise.allow_params_authentication"] = true
+    request.env["warden"].authenticate!(scope: :user)
+  end
+
   # If you want to restrict access to the web interface for adding oauth authorized applications, you need to declare the block below.
   # admin_authenticator do
   #   # Put your admin authentication logic here.
@@ -90,7 +96,8 @@ Doorkeeper.configure do
   #   http://tools.ietf.org/html/rfc6819#section-4.4.2
   #   http://tools.ietf.org/html/rfc6819#section-4.4.3
   #
-  # grant_flows %w(authorization_code client_credentials)
+
+  grant_flows %w(authorization_code password client_credentials)
 
   # Under some circumstances you might want to have applications auto-approved,
   # so that the user skips the authorization step.