Merge branch 'master' into french-translation

23 files changed, 206 insertions, 56 deletions

diff --git a/.env.production.sample b/.env.production.sample
index b68ba523c..a3da10b97 100644
--- a/.env.production.sample
+++ b/.env.production.sample
@@ -14,6 +14,8 @@ LOCAL_DOMAIN=example.com
 LOCAL_HTTPS=true
 
 # Application secrets
+# These are arbitrary strings. They should be long and cryptographically secure.
+# For Docker, `docker-compose run --rm web rake secret` will generate them.
 PAPERCLIP_SECRET=
 SECRET_KEY_BASE=
 
diff --git a/Gemfile b/Gemfile
index 9654c8828..327a17ee9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@
 
 source 'https://rubygems.org'
 
-gem 'rails', '5.0.0.1'
+gem 'rails', git: 'https://github.com/rails/rails.git', branch: '5-0-stable'
 gem 'sass-rails', '~> 5.0'
 gem 'uglifier', '>= 1.3.0'
 gem 'coffee-rails', '~> 4.1.0'
@@ -50,6 +50,11 @@ gem 'react-rails'
 gem 'browserify-rails'
 gem 'autoprefixer-rails'
 
+gem 'rack-mini-profiler', require: false
+gem 'flamegraph'
+gem 'stackprof'
+gem 'memory_profiler'
+
 group :development, :test do
   gem 'rspec-rails'
   gem 'pry-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index a31573af6..28ad1abb6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,7 @@
-GEM
-  remote: https://rubygems.org/
+GIT
+  remote: https://github.com/rails/rails.git
+  revision: ecb394a31420f6fd1d0ab692c79f2dd44176e2c9
+  branch: 5-0-stable
   specs:
     actioncable (5.0.0.1)
       actionpack (= 5.0.0.1)
@@ -24,7 +26,6 @@ GEM
       erubis (~> 2.7.0)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    active_record_query_trace (1.5.3)
     activejob (5.0.0.1)
       activesupport (= 5.0.0.1)
       globalid (>= 0.3.6)
@@ -39,8 +40,31 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+    rails (5.0.0.1)
+      actioncable (= 5.0.0.1)
+      actionmailer (= 5.0.0.1)
+      actionpack (= 5.0.0.1)
+      actionview (= 5.0.0.1)
+      activejob (= 5.0.0.1)
+      activemodel (= 5.0.0.1)
+      activerecord (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      bundler (>= 1.3.0, < 2.0)
+      railties (= 5.0.0.1)
+      sprockets-rails (>= 2.0.0)
+    railties (5.0.0.1)
+      actionpack (= 5.0.0.1)
+      activesupport (= 5.0.0.1)
+      method_source
+      rake (>= 0.8.7)
+      thor (>= 0.18.1, < 2.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    active_record_query_trace (1.5.3)
     addressable (2.4.0)
-    arel (7.1.1)
+    arel (7.1.4)
     ast (2.3.0)
     autoprefixer-rails (6.5.0.2)
       execjs
@@ -112,6 +136,7 @@ GEM
     execjs (2.7.0)
     fabrication (2.15.2)
     fast_blank (1.0.0)
+    flamegraph (0.9.5)
     font-awesome-rails (4.6.3.1)
       railties (>= 3.2, < 5.1)
     fuubar (2.1.1)
@@ -181,6 +206,7 @@ GEM
       nokogiri (>= 1.5.9)
     mail (2.6.4)
       mime-types (>= 1.16, < 4)
+    memory_profiler (0.9.7)
     method_source (0.8.2)
     mime-types (3.1)
       mime-types-data (~> 3.2015)
@@ -238,22 +264,12 @@ GEM
     rack-attack (5.0.1)
       rack
     rack-cors (0.4.0)
+    rack-mini-profiler (0.10.1)
+      rack (>= 1.2.0)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (5.0.0.1)
-      actioncable (= 5.0.0.1)
-      actionmailer (= 5.0.0.1)
-      actionpack (= 5.0.0.1)
-      actionview (= 5.0.0.1)
-      activejob (= 5.0.0.1)
-      activemodel (= 5.0.0.1)
-      activerecord (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
-      bundler (>= 1.3.0, < 2.0)
-      railties (= 5.0.0.1)
-      sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.1)
       activesupport (>= 4.2.0, < 6.0)
       nokogiri (~> 1.6.0)
@@ -266,12 +282,6 @@ GEM
       rails (> 3.1)
     rails_serve_static_assets (0.0.5)
     rails_stdout_logging (0.0.5)
-    railties (5.0.0.1)
-      actionpack (= 5.0.0.1)
-      activesupport (= 5.0.0.1)
-      method_source
-      rake (>= 0.8.7)
-      thor (>= 0.18.1, < 2.0)
     rainbow (2.1.0)
     rake (11.3.0)
     rdoc (4.2.2)
@@ -362,10 +372,11 @@ GEM
     sprockets (3.7.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.1.1)
+    sprockets-rails (3.2.0)
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    stackprof (0.2.10)
     temple (0.7.7)
     term-ansicolor (1.4.0)
       tins (~> 1.0)
@@ -414,6 +425,7 @@ DEPENDENCIES
   dotenv-rails
   fabrication
   fast_blank
+  flamegraph
   font-awesome-rails
   fuubar
   goldfinger
@@ -429,6 +441,7 @@ DEPENDENCIES
   letter_opener
   link_header
   lograge
+  memory_profiler
   neography
   nokogiri
   oj
@@ -443,7 +456,8 @@ DEPENDENCIES
   rabl
   rack-attack
   rack-cors
-  rails (= 5.0.0.1)
+  rack-mini-profiler
+  rails!
   rails_12factor
   rails_autolink
   react-rails
@@ -457,6 +471,7 @@ DEPENDENCIES
   sidekiq
   simple_form
   simplecov
+  stackprof
   uglifier (>= 1.3.0)
   webmock
   will_paginate
diff --git a/app/assets/javascripts/components/components/lightbox.jsx b/app/assets/javascripts/components/components/lightbox.jsx
index 537bab954..36f078a3a 100644
--- a/app/assets/javascripts/components/components/lightbox.jsx
+++ b/app/assets/javascripts/components/components/lightbox.jsx
@@ -43,13 +43,15 @@ const Lightbox = React.createClass({
   render () {
     const { intl, isVisible, onOverlayClicked, onCloseClicked, children } = this.props;
 
+    const content = isVisible ? children : <div />;
+
     return (
       <div className='lightbox' style={{...overlayStyle, display: isVisible ? 'flex' : 'none'}} onClick={onOverlayClicked}>
         <Motion defaultStyle={{ y: -200 }} style={{ y: spring(isVisible ? 0 : -200) }}>
           {({ y }) =>
             <div style={{...dialogStyle, transform: `translateY(${y}px)`}}>
               <IconButton title={intl.formatMessage({ id: 'lightbox.close', defaultMessage: 'Close' })} icon='times' onClick={onCloseClicked} size={16} style={closeStyle} />
-              {children}
+              {content}
             </div>
           }
         </Motion>
diff --git a/app/assets/javascripts/components/locales/en.jsx b/app/assets/javascripts/components/locales/en.jsx
index b2c8390c1..f3326bf90 100644
--- a/app/assets/javascripts/components/locales/en.jsx
+++ b/app/assets/javascripts/components/locales/en.jsx
@@ -34,7 +34,7 @@ const en = {
   "tabs_bar.public": "Public",
   "tabs_bar.notifications": "Notifications",
   "compose_form.placeholder": "What is on your mind?",
-  "compose_form.publish": "Publish",
+  "compose_form.publish": "Toot",
   "navigation_bar.settings": "Settings",
   "navigation_bar.public_timeline": "Public timeline",
   "navigation_bar.logout": "Logout",
diff --git a/app/assets/javascripts/components/middleware/errors.jsx b/app/assets/javascripts/components/middleware/errors.jsx
index fb161fc4c..3a1473bc1 100644
--- a/app/assets/javascripts/components/middleware/errors.jsx
+++ b/app/assets/javascripts/components/middleware/errors.jsx
@@ -1,11 +1,13 @@
 import { showAlert } from '../actions/alerts';
 
+const defaultSuccessSuffix = 'SUCCESS';
 const defaultFailSuffix = 'FAIL';
 
 export default function errorsMiddleware() {
   return ({ dispatch }) => next => action => {
     if (action.type) {
       const isFail = new RegExp(`${defaultFailSuffix}$`, 'g');
+      const isSuccess = new RegExp(`${defaultSuccessSuffix}$`, 'g');
 
       if (action.type.match(isFail)) {
         if (action.error.response) {
diff --git a/app/controllers/api/v1/accounts_controller.rb b/app/controllers/api/v1/accounts_controller.rb
index 2dfab0831..97d626af2 100644
--- a/app/controllers/api/v1/accounts_controller.rb
+++ b/app/controllers/api/v1/accounts_controller.rb
@@ -18,9 +18,11 @@ class Api::V1::AccountsController < ApiController
 
   def following
     results   = Follow.where(account: @account).paginate_by_max_id(DEFAULT_ACCOUNTS_LIMIT, params[:max_id], params[:since_id])
-    accounts  = Account.where(id: results.map(&:target_account_id)).with_counters.map { |a| [a.id, a] }.to_h
+    accounts  = Account.where(id: results.map(&:target_account_id)).map { |a| [a.id, a] }.to_h
     @accounts = results.map { |f| accounts[f.target_account_id] }
 
+    set_account_counters_maps(@accounts)
+
     next_path = following_api_v1_account_url(max_id: results.last.id)    if results.size == DEFAULT_ACCOUNTS_LIMIT
     prev_path = following_api_v1_account_url(since_id: results.first.id) unless results.empty?
 
@@ -31,9 +33,11 @@ class Api::V1::AccountsController < ApiController
 
   def followers
     results   = Follow.where(target_account: @account).paginate_by_max_id(DEFAULT_ACCOUNTS_LIMIT, params[:max_id], params[:since_id])
-    accounts  = Account.where(id: results.map(&:account_id)).with_counters.map { |a| [a.id, a] }.to_h
+    accounts  = Account.where(id: results.map(&:account_id)).map { |a| [a.id, a] }.to_h
     @accounts = results.map { |f| accounts[f.account_id] }
 
+    set_account_counters_maps(@accounts)
+
     next_path = followers_api_v1_account_url(max_id: results.last.id)    if results.size == DEFAULT_ACCOUNTS_LIMIT
     prev_path = followers_api_v1_account_url(since_id: results.first.id) unless results.empty?
 
@@ -53,9 +57,10 @@ class Api::V1::AccountsController < ApiController
   end
 
   def statuses
-    @statuses = @account.statuses.with_includes.with_counters.paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
+    @statuses = @account.statuses.with_includes.paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
 
     next_path = statuses_api_v1_account_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = statuses_api_v1_account_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -98,6 +103,9 @@ class Api::V1::AccountsController < ApiController
   def search
     limit = params[:limit] ? [DEFAULT_ACCOUNTS_LIMIT, params[:limit].to_i].min : DEFAULT_ACCOUNTS_LIMIT
     @accounts = SearchService.new.call(params[:q], limit, params[:resolve] == 'true')
+
+    set_account_counters_maps(@accounts)
+
     render action: :index
   end
 
diff --git a/app/controllers/api/v1/notifications_controller.rb b/app/controllers/api/v1/notifications_controller.rb
index c76189e87..d74b99a86 100644
--- a/app/controllers/api/v1/notifications_controller.rb
+++ b/app/controllers/api/v1/notifications_controller.rb
@@ -7,7 +7,8 @@ class Api::V1::NotificationsController < ApiController
   respond_to :json
 
   def index
-    @notifications = Notification.where(account: current_account).with_includes.paginate_by_max_id(20, params[:max_id], params[:since_id])
+    @notifications = Notification.where(account: current_account).paginate_by_max_id(20, params[:max_id], params[:since_id])
+    @notifications = cache(@notifications)
     statuses       = @notifications.select { |n| !n.target_status.nil? }.map(&:target_status)
 
     set_maps(statuses)
@@ -19,4 +20,25 @@ class Api::V1::NotificationsController < ApiController
 
     set_pagination_headers(next_path, prev_path)
   end
+
+  private
+
+  def cache(raw)
+    uncached_ids           = []
+    cached_keys_with_value = Rails.cache.read_multi(*raw.map(&:cache_key))
+
+    raw.each do |notification|
+      uncached_ids << notification.id unless cached_keys_with_value.key?(notification.cache_key)
+    end
+
+    unless uncached_ids.empty?
+      uncached = Notification.where(id: uncached_ids).with_includes.map { |n| [n.id, n] }.to_h
+
+      uncached.values.each do |notification|
+        Rails.cache.write(notification.cache_key, notification)
+      end
+    end
+
+    raw.map { |notification| cached_keys_with_value[notification.cache_key] || uncached[notification.id] }
+  end
 end
diff --git a/app/controllers/api/v1/statuses_controller.rb b/app/controllers/api/v1/statuses_controller.rb
index 53578b2f7..b2b432a6b 100644
--- a/app/controllers/api/v1/statuses_controller.rb
+++ b/app/controllers/api/v1/statuses_controller.rb
@@ -13,14 +13,19 @@ class Api::V1::StatusesController < ApiController
 
   def context
     @context = OpenStruct.new(ancestors: @status.ancestors(current_account), descendants: @status.descendants(current_account))
-    set_maps([@status] + @context[:ancestors] + @context[:descendants])
+    statuses = [@status] + @context[:ancestors] + @context[:descendants]
+
+    set_maps(statuses)
+    set_counters_maps(statuses)
   end
 
   def reblogged_by
     results   = @status.reblogs.paginate_by_max_id(DEFAULT_ACCOUNTS_LIMIT, params[:max_id], params[:since_id])
-    accounts  = Account.where(id: results.map(&:account_id)).with_counters.map { |a| [a.id, a] }.to_h
+    accounts  = Account.where(id: results.map(&:account_id)).map { |a| [a.id, a] }.to_h
     @accounts = results.map { |r| accounts[r.account_id] }
 
+    set_account_counters_maps(@accounts)
+
     next_path = reblogged_by_api_v1_status_url(max_id: results.last.id)    if results.size == DEFAULT_ACCOUNTS_LIMIT
     prev_path = reblogged_by_api_v1_status_url(since_id: results.first.id) unless results.empty?
 
@@ -31,9 +36,11 @@ class Api::V1::StatusesController < ApiController
 
   def favourited_by
     results   = @status.favourites.paginate_by_max_id(DEFAULT_ACCOUNTS_LIMIT, params[:max_id], params[:since_id])
-    accounts  = Account.where(id: results.map(&:account_id)).with_counters.map { |a| [a.id, a] }.to_h
+    accounts  = Account.where(id: results.map(&:account_id)).map { |a| [a.id, a] }.to_h
     @accounts = results.map { |f| accounts[f.account_id] }
 
+    set_account_counters_maps(@accounts)
+
     next_path = favourited_by_api_v1_status_url(max_id: results.last.id)    if results.size == DEFAULT_ACCOUNTS_LIMIT
     prev_path = favourited_by_api_v1_status_url(since_id: results.first.id) unless results.empty?
 
@@ -54,7 +61,7 @@ class Api::V1::StatusesController < ApiController
   end
 
   def reblog
-    @status = ReblogService.new.call(current_user.account, Status.find(params[:id])).reload
+    @status = ReblogService.new.call(current_user.account, Status.find(params[:id]))
     render action: :show
   end
 
diff --git a/app/controllers/api/v1/timelines_controller.rb b/app/controllers/api/v1/timelines_controller.rb
index 19b76f11d..b1d7c3052 100644
--- a/app/controllers/api/v1/timelines_controller.rb
+++ b/app/controllers/api/v1/timelines_controller.rb
@@ -10,6 +10,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = Feed.new(:home, current_account).get(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_home_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_home_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -23,6 +25,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = Feed.new(:mentions, current_account).get(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_mentions_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_mentions_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -34,8 +38,11 @@ class Api::V1::TimelinesController < ApiController
 
   def public
     @statuses = Status.as_public_timeline(current_account).paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
+    @statuses = cache(@statuses)
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_public_timeline_url(max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_public_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -48,8 +55,11 @@ class Api::V1::TimelinesController < ApiController
   def tag
     @tag      = Tag.find_by(name: params[:id].downcase)
     @statuses = @tag.nil? ? [] : Status.as_tag_timeline(@tag, current_account).paginate_by_max_id(DEFAULT_STATUSES_LIMIT, params[:max_id], params[:since_id]).to_a
+    @statuses = cache(@statuses)
 
     set_maps(@statuses)
+    set_counters_maps(@statuses)
+    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_hashtag_timeline_url(params[:id], max_id: @statuses.last.id)    if @statuses.size == DEFAULT_STATUSES_LIMIT
     prev_path = api_v1_hashtag_timeline_url(params[:id], since_id: @statuses.first.id) unless @statuses.empty?
@@ -58,4 +68,25 @@ class Api::V1::TimelinesController < ApiController
 
     render action: :index
   end
+
+  private
+
+  def cache(raw)
+    uncached_ids           = []
+    cached_keys_with_value = Rails.cache.read_multi(*raw.map(&:cache_key))
+
+    raw.each do |status|
+      uncached_ids << status.id unless cached_keys_with_value.key?(status.cache_key)
+    end
+
+    unless uncached_ids.empty?
+      uncached = Status.where(id: uncached_ids).with_includes.map { |s| [s.id, s] }.to_h
+
+      uncached.values.each do |status|
+        Rails.cache.write(status.cache_key, status)
+      end
+    end
+
+    raw.map { |status| cached_keys_with_value[status.cache_key] || uncached[status.id] }
+  end
 end
diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
index 862358d6e..a3a2a3275 100644
--- a/app/controllers/api_controller.rb
+++ b/app/controllers/api_controller.rb
@@ -59,7 +59,7 @@ class ApiController < ApplicationController
   end
 
   def current_resource_owner
-    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
+    @current_user ||= User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
   end
 
   def current_user
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 3a4c95db4..effb4ed78 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -14,6 +14,7 @@ class ApplicationController < ActionController::Base
 
   before_action :store_current_location, except: :raise_not_found, unless: :devise_controller?
   before_action :set_locale
+  before_action :check_rack_mini_profiler
 
   def raise_not_found
     raise ActionController::RoutingError, "No route matches #{params[:unmatched_route]}"
@@ -31,6 +32,10 @@ class ApplicationController < ActionController::Base
     I18n.locale = I18n.default_locale
   end
 
+  def check_rack_mini_profiler
+    Rack::MiniProfiler.authorize_request if current_user && current_user.admin?
+  end
+
   protected
 
   def not_found
@@ -46,6 +51,6 @@ class ApplicationController < ActionController::Base
   end
 
   def current_account
-    current_user.try(:account)
+    @current_account ||= current_user.try(:account)
   end
 end
diff --git a/app/models/feed.rb b/app/models/feed.rb
index e7f2ab3a5..45cb923d1 100644
--- a/app/models/feed.rb
+++ b/app/models/feed.rb
@@ -16,7 +16,7 @@ class Feed
       RegenerationWorker.perform_async(@account.id, @type)
       @statuses = Status.send("as_#{@type}_timeline", @account).paginate_by_max_id(limit, nil, nil)
     else
-      status_map = Status.where(id: unhydrated).with_includes.with_counters.map { |status| [status.id, status] }.to_h
+      status_map = cache(unhydrated)
       @statuses = unhydrated.map { |id| status_map[id] }.compact
     end
 
@@ -25,6 +25,29 @@ class Feed
 
   private
 
+  def cache(ids)
+    raw                    = Status.where(id: ids).to_a
+    uncached_ids           = []
+    cached_keys_with_value = Rails.cache.read_multi(*raw.map(&:cache_key))
+
+    raw.each do |status|
+      uncached_ids << status.id unless cached_keys_with_value.key?(status.cache_key)
+    end
+
+    unless uncached_ids.empty?
+      uncached = Status.where(id: uncached_ids).with_includes.map { |s| [s.id, s] }.to_h
+
+      uncached.values.each do |status|
+        Rails.cache.write(status.cache_key, status)
+      end
+    end
+
+    cached = cached_keys_with_value.values.map { |s| [s.id, s] }.to_h
+    cached.merge!(uncached) unless uncached_ids.empty?
+
+    cached
+  end
+
   def key
     FeedManager.instance.key(@type, @account.id)
   end
diff --git a/app/models/notification.rb b/app/models/notification.rb
index 419f31230..c0537397c 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -11,6 +11,8 @@ class Notification < ApplicationRecord
   belongs_to :follow,    foreign_type: 'Follow',    foreign_key: 'activity_id'
   belongs_to :favourite, foreign_type: 'Favourite', foreign_key: 'activity_id'
 
+  validates :account_id, uniqueness: { scope: [:activity_type, :activity_id] }
+
   STATUS_INCLUDES = [:account, :stream_entry, :media_attachments, :tags, mentions: :account, reblog: [:stream_entry, :account, :media_attachments, :tags, mentions: :account]].freeze
 
   scope :with_includes, -> { includes(status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account) }
diff --git a/app/models/status.rb b/app/models/status.rb
index 1bf4b49c9..3402929bf 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -4,7 +4,7 @@ class Status < ApplicationRecord
   include Paginable
   include Streamable
 
-  belongs_to :account, -> { with_counters }, inverse_of: :statuses
+  belongs_to :account, inverse_of: :statuses
 
   belongs_to :thread, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :replies
   belongs_to :reblog, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblogs, touch: true
@@ -27,7 +27,7 @@ class Status < ApplicationRecord
   default_scope { order('id desc') }
 
   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, :media_attachments, :tags, :stream_entry, mentions: :account, reblog: [:account, mentions: :account], thread: :account) }
+  scope :with_includes, -> { includes(:account, :media_attachments, :tags, :stream_entry, mentions: :account, reblog: [:account, :stream_entry, :tags, :media_attachments, mentions: :account], thread: :account) }
 
   def local?
     uri.nil?
@@ -71,7 +71,7 @@ class Status < ApplicationRecord
 
   def ancestors(account = nil)
     ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, in_reply_to_id, path) AS (SELECT id, in_reply_to_id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, statuses.in_reply_to_id, path || statuses.id FROM search_tree JOIN statuses ON statuses.id = search_tree.in_reply_to_id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path DESC', id]) - [self]).pluck(:id)
-    statuses = Status.where(id: ids).with_counters.with_includes.group_by(&:id)
+    statuses = Status.where(id: ids).with_includes.group_by(&:id)
     results  = ids.map { |id| statuses[id].first }
     results  = results.reject { |status| account.blocking?(status.account) } unless account.nil?
 
@@ -80,7 +80,7 @@ class Status < ApplicationRecord
 
   def descendants(account = nil)
     ids      = (Status.find_by_sql(['WITH RECURSIVE search_tree(id, path) AS (SELECT id, ARRAY[id] FROM statuses WHERE id = ? UNION ALL SELECT statuses.id, path || statuses.id FROM search_tree JOIN statuses ON statuses.in_reply_to_id = search_tree.id WHERE NOT statuses.id = ANY(path)) SELECT id FROM search_tree ORDER BY path', id]) - [self]).pluck(:id)
-    statuses = Status.where(id: ids).with_counters.with_includes.group_by(&:id)
+    statuses = Status.where(id: ids).with_includes.group_by(&:id)
     results  = ids.map { |id| statuses[id].first }
     results  = results.reject { |status| account.blocking?(status.account) } unless account.nil?
 
@@ -89,28 +89,25 @@ class Status < ApplicationRecord
 
   class << self
     def as_home_timeline(account)
-      where(account: [account] + account.following).with_includes.with_counters
+      where(account: [account] + account.following).with_includes
     end
 
     def as_mentions_timeline(account)
-      where(id: Mention.where(account: account).pluck(:status_id)).with_includes.with_counters
+      where(id: Mention.where(account: account).pluck(:status_id)).with_includes
     end
 
     def as_public_timeline(account = nil)
       query = joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id').where('accounts.silenced = FALSE')
       query = filter_timeline(query, account) unless account.nil?
-
-      query.with_includes.with_counters
+      query
     end
 
     def as_tag_timeline(tag, account = nil)
       query = tag.statuses
                  .joins('LEFT OUTER JOIN accounts ON statuses.account_id = accounts.id')
                  .where('accounts.silenced = FALSE')
-
       query = filter_timeline(query, account) unless account.nil?
-
-      query.with_includes.with_counters
+      query
     end
 
     def favourites_map(status_ids, account_id)
diff --git a/app/models/user.rb b/app/models/user.rb
index 4eb1d20a5..366172e9a 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -14,6 +14,10 @@ class User < ApplicationRecord
   scope :admins,   -> { where(admin: true) }
 
   has_settings do |s|
-    s.key :notification_emails, defaults: { follow: true, reblog: true, favourite: true, mention: true }
+    s.key :notification_emails, defaults: { follow: false, reblog: false, favourite: false, mention: false }
+  end
+
+  def send_devise_notification(notification, *args)
+    devise_mailer.send(notification, self, *args).deliver_later
   end
 end
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index c0f1d4c53..772adfb90 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -10,6 +10,8 @@ class NotifyService < BaseService
 
     create_notification
     send_email if email_enabled?
+  rescue ActiveRecord::RecordInvalid
+    return
   end
 
   private
diff --git a/app/services/process_feed_service.rb b/app/services/process_feed_service.rb
index 8daafd444..1cd801b80 100644
--- a/app/services/process_feed_service.rb
+++ b/app/services/process_feed_service.rb
@@ -61,7 +61,7 @@ class ProcessFeedService < BaseService
 
       status.save!
 
-      NotifyService.new.call(status.reblog.account, status) if status.reblog?
+      NotifyService.new.call(status.reblog.account, status) if status.reblog? && status.reblog.account.local?
       Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
       DistributionWorker.perform_async(status.id)
       status
diff --git a/app/services/search_service.rb b/app/services/search_service.rb
index c4cffda13..598c7d02c 100644
--- a/app/services/search_service.rb
+++ b/app/services/search_service.rb
@@ -12,7 +12,7 @@ class SearchService < BaseService
                 Account.search_for("#{username} #{domain}")
               end
 
-    results = results.limit(limit).with_counters
+    results = results.limit(limit)
 
     if resolve && results.empty? && !domain.nil?
       results = [FollowRemoteAccountService.new.call("#{username}@#{domain}")]
diff --git a/app/workers/salmon_worker.rb b/app/workers/salmon_worker.rb
index 12b46e92f..24fb94012 100644
--- a/app/workers/salmon_worker.rb
+++ b/app/workers/salmon_worker.rb
@@ -5,5 +5,7 @@ class SalmonWorker
 
   def perform(account_id, body)
     ProcessInteractionService.new.call(body, Account.find(account_id))
+  rescue ActiveRecord::RecordNotFound
+    true
   end
 end
diff --git a/config/initializers/mini_profiler.rb b/config/initializers/mini_profiler.rb
new file mode 100644
index 000000000..265783618
--- /dev/null
+++ b/config/initializers/mini_profiler.rb
@@ -0,0 +1,17 @@
+require 'rack-mini-profiler'
+
+Rack::MiniProfilerRails.initialize!(Rails.application)
+
+Rails.application.middleware.swap(Rack::Deflater, Rack::MiniProfiler)
+Rails.application.middleware.swap(Rack::MiniProfiler, Rack::Deflater)
+
+Rack::MiniProfiler.config.storage = Rack::MiniProfiler::MemoryStore
+
+if Rails.env.production?
+  Rack::MiniProfiler.config.storage_options = {
+    host: ENV.fetch('REDIS_HOST') { 'localhost' },
+    port: ENV.fetch('REDIS_PORT') { 6379 },
+  }
+
+  Rack::MiniProfiler.config.storage = Rack::MiniProfiler::RedisStore
+end
diff --git a/db/migrate/20161122163057_remove_unneeded_indexes.rb b/db/migrate/20161122163057_remove_unneeded_indexes.rb
new file mode 100644
index 000000000..3832b878d
--- /dev/null
+++ b/db/migrate/20161122163057_remove_unneeded_indexes.rb
@@ -0,0 +1,7 @@
+class RemoveUnneededIndexes < ActiveRecord::Migration[5.0]
+  def change
+    remove_index :notifications, name: "index_notifications_on_account_id"
+    remove_index :settings, name: "index_settings_on_target_type_and_target_id"
+    remove_index :statuses_tags, name: "index_statuses_tags_on_tag_id"
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 20bfb36a8..42e4e081c 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161119211120) do
+ActiveRecord::Schema.define(version: 20161122163057) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -103,7 +103,6 @@ ActiveRecord::Schema.define(version: 20161119211120) do
     t.datetime "created_at",    null: false
     t.datetime "updated_at",    null: false
     t.index ["account_id", "activity_id", "activity_type"], name: "account_activity", unique: true, using: :btree
-    t.index ["account_id"], name: "index_notifications_on_account_id", using: :btree
   end
 
   create_table "oauth_access_grants", force: :cascade do |t|
@@ -152,7 +151,6 @@ ActiveRecord::Schema.define(version: 20161119211120) do
     t.datetime "created_at"
     t.datetime "updated_at"
     t.index ["target_type", "target_id", "var"], name: "index_settings_on_target_type_and_target_id_and_var", unique: true, using: :btree
-    t.index ["target_type", "target_id"], name: "index_settings_on_target_type_and_target_id", using: :btree
   end
 
   create_table "statuses", force: :cascade do |t|
@@ -174,7 +172,6 @@ ActiveRecord::Schema.define(version: 20161119211120) do
     t.integer "status_id", null: false
     t.integer "tag_id",    null: false
     t.index ["tag_id", "status_id"], name: "index_statuses_tags_on_tag_id_and_status_id", unique: true, using: :btree
-    t.index ["tag_id"], name: "index_statuses_tags_on_tag_id", using: :btree
   end
 
   create_table "stream_entries", force: :cascade do |t|