Merge branch 'master' into master

61 files changed, 480 insertions, 183 deletions

diff --git a/app/assets/images/fluffy-elephant-friend.png b/app/assets/images/fluffy-elephant-friend.png
index 11787e936..f0df29927 100644
--- a/app/assets/images/fluffy-elephant-friend.png
+++ b/app/assets/images/fluffy-elephant-friend.png
Binary files differdiff --git a/app/assets/javascripts/components/containers/mastodon.jsx b/app/assets/javascripts/components/containers/mastodon.jsx
index 2861c64e4..00f20074d 100644
--- a/app/assets/javascripts/components/containers/mastodon.jsx
+++ b/app/assets/javascripts/components/containers/mastodon.jsx
@@ -46,6 +46,7 @@ import fr from 'react-intl/locale-data/fr';
 import pt from 'react-intl/locale-data/pt';
 import hu from 'react-intl/locale-data/hu';
 import uk from 'react-intl/locale-data/uk';
+import fi from 'react-intl/locale-data/fi';
 import eo from 'react-intl/locale-data/eo';
 import getMessagesForLocale from '../locales';
 import { hydrateStore } from '../actions/store';
@@ -59,7 +60,7 @@ const browserHistory = useRouterHistory(createBrowserHistory)({
   basename: '/web'
 });
 
-addLocaleData([...en, ...de, ...es, ...fr, ...pt, ...hu, ...uk, ...eo]);
+addLocaleData([...en, ...de, ...es, ...fr, ...pt, ...hu, ...uk, ...fi, ...eo]);
 
 const Mastodon = React.createClass({
 
diff --git a/app/assets/javascripts/components/features/getting_started/index.jsx b/app/assets/javascripts/components/features/getting_started/index.jsx
index 8253ad017..d7a78d9cc 100644
--- a/app/assets/javascripts/components/features/getting_started/index.jsx
+++ b/app/assets/javascripts/components/features/getting_started/index.jsx
@@ -43,7 +43,7 @@ const GettingStarted = ({ intl, me }) => {
 
       <div className='scrollable optionally-scrollable' style={{ display: 'flex', flexDirection: 'column' }}>
         <div className='static-content getting-started'>
-          <p><FormattedMessage id='getting_started.open_source_notice' defaultMessage='Mastodon is open source software. You can contribute or report issues on github at {github}. {apps}.' values={{ github: <a href="https://github.com/tootsuite/mastodon" target="_blank">tootsuite/mastodon</a>, apps: <a href="https://github.com/tootsuite/mastodon/blob/master/docs/Using-Mastodon/Apps.md" target="_blank"><FormattedMessage id='getting_started.apps' defaultMessage='Various apps are available' /></a> }} /></p>
+          <p><FormattedMessage id='getting_started.open_source_notice' defaultMessage='Mastodon is open source software. You can contribute or report issues on GitHub at {github}. {apps}.' values={{ github: <a href="https://github.com/tootsuite/mastodon" target="_blank">tootsuite/mastodon</a>, apps: <a href="https://github.com/tootsuite/mastodon/blob/master/docs/Using-Mastodon/Apps.md" target="_blank"><FormattedMessage id='getting_started.apps' defaultMessage='Various apps are available' /></a> }} /></p>
         </div>
       </div>
     </Column>
diff --git a/app/assets/javascripts/components/features/notifications/components/clear_column_button.jsx b/app/assets/javascripts/components/features/notifications/components/clear_column_button.jsx
index d75149a0e..6aa9d1efa 100644
--- a/app/assets/javascripts/components/features/notifications/components/clear_column_button.jsx
+++ b/app/assets/javascripts/components/features/notifications/components/clear_column_button.jsx
@@ -9,7 +9,7 @@ const iconStyle = {
 };
 
 const ClearColumnButton = ({ onClick }) => (
-  <div className='column-icon' style={iconStyle} onClick={onClick}>
+  <div className='column-icon' tabindex='0' style={iconStyle} onClick={onClick}>
     <i className='fa fa-trash' />
   </div>
 );
diff --git a/app/assets/javascripts/components/locales/en.jsx b/app/assets/javascripts/components/locales/en.jsx
index 2d3360b6b..53e2898eb 100644
--- a/app/assets/javascripts/components/locales/en.jsx
+++ b/app/assets/javascripts/components/locales/en.jsx
@@ -25,7 +25,7 @@ const en = {
   "getting_started.heading": "Getting started",
   "getting_started.about_addressing": "You can follow people if you know their username and the domain they are on by entering an e-mail-esque address into the search form.",
   "getting_started.about_shortcuts": "If the target user is on the same domain as you, just the username will work. The same rule applies to mentioning people in statuses.",
-  "getting_started.open_source_notice": "Mastodon is open source software. You can contribute or report issues on github at {github}. {apps}.",
+  "getting_started.open_source_notice": "Mastodon is open source software. You can contribute or report issues on GitHub at {github}. {apps}.",
   "column.home": "Home",
   "column.community": "Local timeline",
   "column.public": "Federated timeline",
diff --git a/app/assets/javascripts/components/locales/fi.jsx b/app/assets/javascripts/components/locales/fi.jsx
new file mode 100644
index 000000000..b3ae4bc56
--- /dev/null
+++ b/app/assets/javascripts/components/locales/fi.jsx
@@ -0,0 +1,68 @@
+const fi = {
+  "column_back_button.label": "Takaisin",
+  "lightbox.close": "Sulje",
+  "loading_indicator.label": "Ladataan...",
+  "status.mention": "Mainitse @{name}",
+  "status.delete": "Poista",
+  "status.reply": "Vastaa",
+  "status.reblog": "Buustaa",
+  "status.favourite": "Tykkää",
+  "status.reblogged_by": "{name} buustasi",
+  "status.sensitive_warning": "Arkaluontoista sisältöä",
+  "status.sensitive_toggle": "Klikkaa nähdäksesi",
+  "video_player.toggle_sound": "Äänet päälle/pois",
+  "account.mention": "Mainitse @{name}",
+  "account.edit_profile": "Muokkaa",
+  "account.unblock": "Salli @{name}",
+  "account.unfollow": "Lopeta seuraaminen",
+  "account.block": "Estä @{name}",
+  "account.follow": "Seuraa",
+  "account.posts": "Postit",
+  "account.follows": "Seuraa",
+  "account.followers": "Seuraajia",
+  "account.follows_you": "Seuraa sinua",
+  "account.requested": "Odottaa hyväksyntää",
+  "getting_started.heading": "Aloitus",
+  "getting_started.about_addressing": "Voit seurata ihmisiä jos tiedät heidän käyttäjänimensä ja domainin missä he ovat syöttämällä e-mail-esque osoitteen Etsi kenttään.",
+  "getting_started.about_shortcuts": "Jos etsimäsi henkilö on samassa domainissa kuin sinä, pelkkä käyttäjänimi kelpaa. Sama pätee kun mainitset ihmisiä statuksessasi",
+  "getting_started.open_source_notice": "Mastodon Mastodon on avoimen lähdekoodin ohjelma. Voit avustaa tai raportoida ongelmia GitHub palvelussa {github}. {apps}.",
+  "column.home": "Koti",
+  "column.community": "Paikallinen aikajana",
+  "column.public": "Yleinen aikajana",
+  "column.notifications": "Ilmoitukset",
+  "tabs_bar.compose": "Luo",
+  "tabs_bar.home": "Koti",
+  "tabs_bar.mentions": "Maininnat",
+  "tabs_bar.public": "Yleinen aikajana",
+  "tabs_bar.notifications": "Ilmoitukset",
+  "compose_form.placeholder": "Mitä sinulla on mielessä?",
+  "compose_form.publish": "Toot",
+  "compose_form.sensitive": "Merkitse media herkäksi",
+  "compose_form.spoiler": "Piiloita teksti varoituksen taakse",
+  "compose_form.private": "Merkitse yksityiseksi",
+  "compose_form.privacy_disclaimer": "Sinun yksityinen status toimitetaan mainitsemallesi käyttäjille domaineissa {domains}. Luotatko {domainsCount, plural, one {tähän palvelimeen} other {näihin palvelimiin}}? Postauksen yksityisyys toimii van Mastodon palvelimilla. Jos {domains} {domainsCount, plural, one {ei ole Mastodon palvelin} other {eivät ole Mastodon palvelin}}, viestiin ei tule Yksityinen-merkintää, ja sitä voidaan boostata tai muuten tehdä näkyväksi muille vastaanottajille.",
+  "compose_form.unlisted": "Älä näytä yleisillä aikajanoilla",
+  "navigation_bar.edit_profile": "Muokkaa profiilia",
+  "navigation_bar.preferences": "Ominaisuudet",
+  "navigation_bar.community_timeline": "Paikallinen aikajana",
+  "navigation_bar.public_timeline": "Yleinen aikajana",
+  "navigation_bar.logout": "Kirjaudu ulos",
+  "reply_indicator.cancel": "Peruuta",
+  "search.placeholder": "Hae",
+  "search.account": "Tili",
+  "search.hashtag": "Hashtag",
+  "upload_button.label": "Lisää mediaa",
+  "upload_form.undo": "Peru",
+  "notification.follow": "{name} seurasi sinua",
+  "notification.favourite": "{name} tykkäsi statuksestasi",
+  "notification.reblog": "{name} buustasi statustasi",
+  "notification.mention": "{name} mainitsi sinut",
+  "notifications.column_settings.alert": "Työpöytä ilmoitukset",
+  "notifications.column_settings.show": "Näytä sarakkeessa",
+  "notifications.column_settings.follow": "Uusia seuraajia:",
+  "notifications.column_settings.favourite": "Tykkäyksiä:",
+  "notifications.column_settings.mention": "Mainintoja:",
+  "notifications.column_settings.reblog": "Buusteja:",
+};
+
+export default fi;
diff --git a/app/assets/javascripts/components/locales/index.jsx b/app/assets/javascripts/components/locales/index.jsx
index 255172f1e..1e7b8b548 100644
--- a/app/assets/javascripts/components/locales/index.jsx
+++ b/app/assets/javascripts/components/locales/index.jsx
@@ -5,6 +5,7 @@ import hu from './hu';
 import fr from './fr';
 import pt from './pt';
 import uk from './uk';
+import fi from './fi';
 import eo from './eo';
 
 const locales = {
@@ -15,6 +16,7 @@ const locales = {
   fr,
   pt,
   uk,
+  fi,
   eo
 };
 
diff --git a/app/assets/stylesheets/about.scss b/app/assets/stylesheets/about.scss
index 2ff1d1453..c9d9dc5d5 100644
--- a/app/assets/stylesheets/about.scss
+++ b/app/assets/stylesheets/about.scss
@@ -319,7 +319,7 @@
     }
   }
 
-  .simple_form {
+  .simple_form, .closed-registrations-message {
     width: 300px;
     flex: 0 0 auto;
     background: rgba(darken($color1, 7%), 0.5);
@@ -340,3 +340,11 @@
     }
   }
 }
+
+.closed-registrations-message {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+}
diff --git a/app/assets/stylesheets/accounts.scss b/app/assets/stylesheets/accounts.scss
index 25e24a95a..b3ae33500 100644
--- a/app/assets/stylesheets/accounts.scss
+++ b/app/assets/stylesheets/accounts.scss
@@ -34,6 +34,7 @@
     text-align: center;
     position: relative;
     z-index: 2;
+    text-shadow: 0 0 2px $color8;
 
     small {
       display: block;
@@ -128,6 +129,7 @@
       text-transform: uppercase;
       display: block;
       margin-bottom: 5px;
+      text-shadow: 0 0 2px $color8;
     }
 
     .counter-number {
@@ -385,5 +387,6 @@
   .account__header__content {
     font-size: 14px;
     color: $color1;
+    text-shadow: 0 0 2px $color8;
   }
 }
diff --git a/app/controllers/about_controller.rb b/app/controllers/about_controller.rb
index abf4b7df4..7fd43489f 100644
--- a/app/controllers/about_controller.rb
+++ b/app/controllers/about_controller.rb
@@ -4,7 +4,9 @@ class AboutController < ApplicationController
   before_action :set_body_classes
 
   def index
-    @description = Setting.site_description
+    @description                  = Setting.site_description
+    @open_registrations           = Setting.open_registrations
+    @closed_registrations_message = Setting.closed_registrations_message
 
     @user = User.new
     @user.build_account
diff --git a/app/controllers/admin/domain_blocks_controller.rb b/app/controllers/admin/domain_blocks_controller.rb
index e362957e7..1f4432847 100644
--- a/app/controllers/admin/domain_blocks_controller.rb
+++ b/app/controllers/admin/domain_blocks_controller.rb
@@ -9,6 +9,24 @@ class Admin::DomainBlocksController < ApplicationController
     @blocks = DomainBlock.paginate(page: params[:page], per_page: 40)
   end
 
+  def new
+    @domain_block = DomainBlock.new
+  end
+
   def create
+    @domain_block = DomainBlock.new(resource_params)
+
+    if @domain_block.save
+      DomainBlockWorker.perform_async(@domain_block.id)
+      redirect_to admin_domain_blocks_path, notice: 'Domain block is now being processed'
+    else
+      render action: :new
+    end
+  end
+
+  private
+
+  def resource_params
+    params.require(:domain_block).permit(:domain, :severity)
   end
 end
diff --git a/app/controllers/admin/reports_controller.rb b/app/controllers/admin/reports_controller.rb
index 0117a18ee..2b3b1809f 100644
--- a/app/controllers/admin/reports_controller.rb
+++ b/app/controllers/admin/reports_controller.rb
@@ -16,19 +16,19 @@ class Admin::ReportsController < ApplicationController
   end
 
   def resolve
-    @report.update(action_taken: true)
+    @report.update(action_taken: true, action_taken_by_account_id: current_account.id)
     redirect_to admin_report_path(@report)
   end
 
   def suspend
     Admin::SuspensionWorker.perform_async(@report.target_account.id)
-    @report.update(action_taken: true)
+    Report.unresolved.where(target_account: @report.target_account).update_all(action_taken: true, action_taken_by_account_id: current_account.id)
     redirect_to admin_report_path(@report)
   end
 
   def silence
     @report.target_account.update(silenced: true)
-    @report.update(action_taken: true)
+    Report.unresolved.where(target_account: @report.target_account).update_all(action_taken: true, action_taken_by_account_id: current_account.id)
     redirect_to admin_report_path(@report)
   end
 
diff --git a/app/controllers/admin/settings_controller.rb b/app/controllers/admin/settings_controller.rb
index af0be8823..7615c781d 100644
--- a/app/controllers/admin/settings_controller.rb
+++ b/app/controllers/admin/settings_controller.rb
@@ -11,9 +11,13 @@ class Admin::SettingsController < ApplicationController
 
   def update
     @setting = Setting.where(var: params[:id]).first_or_initialize(var: params[:id])
+    value    = settings_params[:value]
 
-    if @setting.value != params[:setting][:value]
-      @setting.value = params[:setting][:value]
+    # Special cases
+    value = value == 'true' if @setting.var == 'open_registrations'
+
+    if @setting.value != value
+      @setting.value = value
       @setting.save
     end
 
@@ -22,4 +26,10 @@ class Admin::SettingsController < ApplicationController
       format.json { respond_with_bip(@setting) }
     end
   end
+
+  private
+
+  def settings_params
+    params.require(:setting).permit(:value)
+  end
 end
diff --git a/app/controllers/api/v1/apps_controller.rb b/app/controllers/api/v1/apps_controller.rb
index ca9dd0b7e..2ec7280af 100644
--- a/app/controllers/api/v1/apps_controller.rb
+++ b/app/controllers/api/v1/apps_controller.rb
@@ -4,6 +4,12 @@ class Api::V1::AppsController < ApiController
   respond_to :json
 
   def create
-    @app = Doorkeeper::Application.create!(name: params[:client_name], redirect_uri: params[:redirect_uris], scopes: (params[:scopes] || Doorkeeper.configuration.default_scopes), website: params[:website])
+    @app = Doorkeeper::Application.create!(name: app_params[:client_name], redirect_uri: app_params[:redirect_uris], scopes: (app_params[:scopes] || Doorkeeper.configuration.default_scopes), website: app_params[:website])
+  end
+
+  private
+
+  def app_params
+    params.permit(:client_name, :redirect_uris, :scopes, :website)
   end
 end
diff --git a/app/controllers/api/v1/follows_controller.rb b/app/controllers/api/v1/follows_controller.rb
index c22dacbaa..7c0f44f03 100644
--- a/app/controllers/api/v1/follows_controller.rb
+++ b/app/controllers/api/v1/follows_controller.rb
@@ -7,7 +7,7 @@ class Api::V1::FollowsController < ApiController
   respond_to :json
 
   def create
-    raise ActiveRecord::RecordNotFound if params[:uri].blank?
+    raise ActiveRecord::RecordNotFound if follow_params[:uri].blank?
 
     @account = FollowService.new.call(current_user.account, target_uri).try(:target_account)
     render action: :show
@@ -16,6 +16,10 @@ class Api::V1::FollowsController < ApiController
   private
 
   def target_uri
-    params[:uri].strip.gsub(/\A@/, '')
+    follow_params[:uri].strip.gsub(/\A@/, '')
+  end
+
+  def follow_params
+    params.permit(:uri)
   end
 end
diff --git a/app/controllers/api/v1/media_controller.rb b/app/controllers/api/v1/media_controller.rb
index f8139ade7..aed3578d7 100644
--- a/app/controllers/api/v1/media_controller.rb
+++ b/app/controllers/api/v1/media_controller.rb
@@ -10,10 +10,16 @@ class Api::V1::MediaController < ApiController
   respond_to :json
 
   def create
-    @media = MediaAttachment.create!(account: current_user.account, file: params[:file])
+    @media = MediaAttachment.create!(account: current_user.account, file: media_params[:file])
   rescue Paperclip::Errors::NotIdentifiedByImageMagickError
     render json: { error: 'File type of uploaded media could not be verified' }, status: 422
   rescue Paperclip::Error
     render json: { error: 'Error processing thumbnail for uploaded media' }, status: 500
   end
+
+  private
+
+  def media_params
+    params.permit(:file)
+  end
 end
diff --git a/app/controllers/api/v1/reports_controller.rb b/app/controllers/api/v1/reports_controller.rb
index 46bdddbc1..f83c573cb 100644
--- a/app/controllers/api/v1/reports_controller.rb
+++ b/app/controllers/api/v1/reports_controller.rb
@@ -12,13 +12,19 @@ class Api::V1::ReportsController < ApiController
   end
 
   def create
-    status_ids = params[:status_ids].is_a?(Enumerable) ? params[:status_ids] : [params[:status_ids]]
+    status_ids = report_params[:status_ids].is_a?(Enumerable) ? report_params[:status_ids] : [report_params[:status_ids]]
 
     @report = Report.create!(account: current_account,
-                             target_account: Account.find(params[:account_id]),
+                             target_account: Account.find(report_params[:account_id]),
                              status_ids: Status.find(status_ids).pluck(:id),
-                             comment: params[:comment])
+                             comment: report_params[:comment])
 
     render :show
   end
+
+  private
+
+  def report_params
+    params.permit(:account_id, :comment, status_ids: [])
+  end
 end
diff --git a/app/controllers/api/v1/statuses_controller.rb b/app/controllers/api/v1/statuses_controller.rb
index 024258c0e..4ece7e702 100644
--- a/app/controllers/api/v1/statuses_controller.rb
+++ b/app/controllers/api/v1/statuses_controller.rb
@@ -62,11 +62,11 @@ class Api::V1::StatusesController < ApiController
   end
 
   def create
-    @status = PostStatusService.new.call(current_user.account, params[:status], params[:in_reply_to_id].blank? ? nil : Status.find(params[:in_reply_to_id]), media_ids: params[:media_ids],
-                                                                                                                                                             sensitive: params[:sensitive],
-                                                                                                                                                             spoiler_text: params[:spoiler_text],
-                                                                                                                                                             visibility: params[:visibility],
-                                                                                                                                                             application: doorkeeper_token.application)
+    @status = PostStatusService.new.call(current_user.account, status_params[:status], status_params[:in_reply_to_id].blank? ? nil : Status.find(status_params[:in_reply_to_id]), media_ids: status_params[:media_ids],
+                                                                                                                                                                                  sensitive: status_params[:sensitive],
+                                                                                                                                                                                  spoiler_text: status_params[:spoiler_text],
+                                                                                                                                                                                  visibility: status_params[:visibility],
+                                                                                                                                                                                  application: doorkeeper_token.application)
     render action: :show
   end
 
@@ -111,4 +111,8 @@ class Api::V1::StatusesController < ApiController
     @status = Status.find(params[:id])
     raise ActiveRecord::RecordNotFound unless @status.permitted?(current_account)
   end
+
+  def status_params
+    params.permit(:status, :in_reply_to_id, :sensitive, :spoiler_text, :visibility, media_ids: [])
+  end
 end
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index ef9364897..c06142fd4 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -39,7 +39,14 @@ class ApplicationController < ActionController::Base
   end
 
   def set_user_activity
-    current_user.touch(:current_sign_in_at) if !current_user.nil? && (current_user.current_sign_in_at.nil? || current_user.current_sign_in_at < 24.hours.ago)
+    return unless !current_user.nil? && (current_user.current_sign_in_at.nil? || current_user.current_sign_in_at < 24.hours.ago)
+
+    # Mark user as signed-in today
+    current_user.update_tracked_fields(request)
+
+    # If the sign in is after a two week break, we need to regenerate their feed
+    RegenerationWorker.perform_async(current_user.account_id) if current_user.last_sign_in_at < 14.days.ago
+    return
   end
 
   def check_suspension
diff --git a/app/controllers/auth/registrations_controller.rb b/app/controllers/auth/registrations_controller.rb
index 501e66807..4881c074a 100644
--- a/app/controllers/auth/registrations_controller.rb
+++ b/app/controllers/auth/registrations_controller.rb
@@ -3,7 +3,7 @@
 class Auth::RegistrationsController < Devise::RegistrationsController
   layout :determine_layout
 
-  before_action :check_single_user_mode
+  before_action :check_enabled_registrations, only: [:new, :create]
   before_action :configure_sign_up_params, only: [:create]
 
   protected
@@ -27,12 +27,12 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     new_user_session_path
   end
 
-  def check_single_user_mode
-    redirect_to root_path if Rails.configuration.x.single_user_mode
+  def check_enabled_registrations
+    redirect_to root_path if Rails.configuration.x.single_user_mode || !Setting.open_registrations
   end
-  
+
   private
-  
+
   def determine_layout
     %w(edit update).include?(action_name) ? 'admin' : 'auth'
   end
diff --git a/app/controllers/oauth/authorizations_controller.rb b/app/controllers/oauth/authorizations_controller.rb
index feaad04f6..7c25266d8 100644
--- a/app/controllers/oauth/authorizations_controller.rb
+++ b/app/controllers/oauth/authorizations_controller.rb
@@ -3,6 +3,7 @@
 class Oauth::AuthorizationsController < Doorkeeper::AuthorizationsController
   skip_before_action :authenticate_resource_owner!
 
+  before_action :set_locale
   before_action :store_current_location
   before_action :authenticate_resource_owner!
 
@@ -11,4 +12,10 @@ class Oauth::AuthorizationsController < Doorkeeper::AuthorizationsController
   def store_current_location
     store_location_for(:user, request.url)
   end
+
+  def set_locale
+    I18n.locale = current_user.try(:locale) || I18n.default_locale
+  rescue I18n::InvalidLocale
+    I18n.locale = I18n.default_locale
+  end
 end
diff --git a/app/controllers/remote_follow_controller.rb b/app/controllers/remote_follow_controller.rb
index 7d4bfe6ce..1e3f786ec 100644
--- a/app/controllers/remote_follow_controller.rb
+++ b/app/controllers/remote_follow_controller.rb
@@ -8,6 +8,7 @@ class RemoteFollowController < ApplicationController
 
   def new
     @remote_follow = RemoteFollow.new
+    @remote_follow.acct = session[:remote_follow] if session.key?(:remote_follow)
   end
 
   def create
@@ -22,6 +23,8 @@ class RemoteFollowController < ApplicationController
         render(:new) && return
       end
 
+      session[:remote_follow] = @remote_follow.acct
+
       redirect_to Addressable::Template.new(redirect_url_link.template).expand(uri: "#{@account.username}@#{Rails.configuration.x.local_domain}").to_s
     else
       render :new
diff --git a/app/helpers/settings_helper.rb b/app/helpers/settings_helper.rb
index f92abb9bc..74dc0e11d 100644
--- a/app/helpers/settings_helper.rb
+++ b/app/helpers/settings_helper.rb
@@ -10,6 +10,7 @@ module SettingsHelper
     hu: 'Magyar',
     uk: 'Українська',
     'zh-CN': '简体中文',
+    fi: 'Suomi',
     eo: 'Esperanto',
   }.freeze
 
diff --git a/app/lib/email_validator.rb b/app/lib/email_validator.rb
index 856b8b1f7..06e9375f6 100644
--- a/app/lib/email_validator.rb
+++ b/app/lib/email_validator.rb
@@ -2,17 +2,30 @@
 
 class EmailValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
-    return if Rails.configuration.x.email_domains_blacklist.empty?
-
     record.errors.add(attribute, I18n.t('users.invalid_email')) if blocked_email?(value)
   end
 
   private
 
   def blocked_email?(value)
+    on_blacklist?(value) || not_on_whitelist?(value)
+  end
+
+  def on_blacklist?(value)
+    return false if Rails.configuration.x.email_domains_blacklist.blank?
+
     domains = Rails.configuration.x.email_domains_blacklist.gsub('.', '\.')
     regexp  = Regexp.new("@(.+\\.)?(#{domains})", true)
 
     value =~ regexp
   end
+
+  def not_on_whitelist?(value)
+    return false if Rails.configuration.x.email_domains_whitelist.blank?
+
+    domains = Rails.configuration.x.email_domains_whitelist.gsub('.', '\.')
+    regexp  = Regexp.new("@(.+\\.)?(#{domains})", true)
+
+    value !~ regexp
+  end
 end
diff --git a/app/lib/exceptions.rb b/app/lib/exceptions.rb
index 200da9fe1..9bc802c12 100644
--- a/app/lib/exceptions.rb
+++ b/app/lib/exceptions.rb
@@ -4,4 +4,5 @@ module Mastodon
   class Error < StandardError; end
   class NotPermittedError < Error; end
   class ValidationError < Error; end
+  class RaceConditionError < Error; end
 end
diff --git a/app/lib/feed_manager.rb b/app/lib/feed_manager.rb
index cd6ca1291..58d9fb1fc 100644
--- a/app/lib/feed_manager.rb
+++ b/app/lib/feed_manager.rb
@@ -5,17 +5,17 @@ require 'singleton'
 class FeedManager
   include Singleton
 
-  MAX_ITEMS = 800
+  MAX_ITEMS = 400
 
   def key(type, id)
     "feed:#{type}:#{id}"
   end
 
-  def filter?(timeline_type, status, receiver)
+  def filter?(timeline_type, status, receiver_id)
     if timeline_type == :home
-      filter_from_home?(status, receiver)
+      filter_from_home?(status, receiver_id)
     elsif timeline_type == :mentions
-      filter_from_mentions?(status, receiver)
+      filter_from_mentions?(status, receiver_id)
     else
       false
     end
@@ -34,12 +34,7 @@ class FeedManager
       trim(timeline_type, account.id)
     end
 
-    broadcast(account.id, event: 'update', payload: inline_render(account, 'api/v1/statuses/show', status))
-  end
-
-  def broadcast(timeline_id, options = {})
-    options[:queued_at] = (Time.now.to_f * 1000.0).to_i
-    ActionCable.server.broadcast("timeline:#{timeline_id}", options)
+    PushUpdateWorker.perform_async(account.id, status.id)
   end
 
   def trim(type, account_id)
@@ -50,10 +45,18 @@ class FeedManager
 
   def merge_into_timeline(from_account, into_account)
     timeline_key = key(:home, into_account.id)
+    query        = from_account.statuses.limit(FeedManager::MAX_ITEMS / 4)
 
-    from_account.statuses.limit(MAX_ITEMS).each do |status|
-      next if status.direct_visibility? || filter?(:home, status, into_account)
-      redis.zadd(timeline_key, status.id, status.id)
+    if redis.zcard(timeline_key) >= FeedManager::MAX_ITEMS / 4
+      oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
+      query = query.where('id > ?', oldest_home_score)
+    end
+
+    redis.pipelined do
+      query.each do |status|
+        next if status.direct_visibility? || filter?(:home, status, into_account)
+        redis.zadd(timeline_key, status.id, status.id)
+      end
     end
 
     trim(:home, into_account.id)
@@ -61,31 +64,16 @@ class FeedManager
 
   def unmerge_from_timeline(from_account, into_account)
     timeline_key = key(:home, into_account.id)
-
-    from_account.statuses.select('id').find_each do |status|
-      redis.zrem(timeline_key, status.id)
-      redis.zremrangebyscore(timeline_key, status.id, status.id)
-    end
-  end
-
-  def inline_render(target_account, template, object)
-    rabl_scope = Class.new do
-      include RoutingHelper
-
-      def initialize(account)
-        @account = account
-      end
-
-      def current_user
-        @account.try(:user)
-      end
-
-      def current_account
-        @account
+    oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
+
+    from_account.statuses.select('id').where('id > ?', oldest_home_score).find_in_batches do |statuses|
+      redis.pipelined do
+        statuses.each do |status|
+          redis.zrem(timeline_key, status.id)
+          redis.zremrangebyscore(timeline_key, status.id, status.id)
+        end
       end
     end
-
-    Rabl::Renderer.new(template, object, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render
   end
 
   private
@@ -94,38 +82,40 @@ class FeedManager
     Redis.current
   end
 
-  def filter_from_home?(status, receiver)
-    return true if receiver.muting?(status.account)
-
-    should_filter = false
-
-    if status.reply? && status.in_reply_to_id.nil?
-      should_filter = true
-    elsif status.reply? && !status.in_reply_to_account_id.nil?                # Filter out if it's a reply
-      should_filter   = !receiver.following?(status.in_reply_to_account)      # and I'm not following the person it's a reply to
-      should_filter &&= !(receiver.id == status.in_reply_to_account_id)       # and it's not a reply to me
-      should_filter &&= !(status.account_id == status.in_reply_to_account_id) # and it's not a self-reply
-    elsif status.reblog?                                                      # Filter out a reblog
-      should_filter = receiver.blocking?(status.reblog.account)               # if I'm blocking the reblogged person
-      should_filter ||= receiver.muting?(status.reblog.account)               # or muting that person
-      should_filter ||= status.reblog.account.blocking?(receiver)             # or if the author of the reblogged status is blocking me
-    end
+  def filter_from_home?(status, receiver_id)
+    return true if status.reply? && status.in_reply_to_id.nil?
 
-    should_filter ||= receiver.blocking?(status.mentions.map(&:account_id))   # or if it mentions someone I blocked
+    check_for_mutes = [status.account_id]
+    check_for_mutes.concat([status.reblog.account_id]) if status.reblog?
 
-    should_filter
-  end
+    return true if Mute.where(account_id: receiver_id, target_account_id: check_for_mutes).any?
+
+    check_for_blocks = status.mentions.map(&:account_id)
+    check_for_blocks.concat([status.reblog.account_id]) if status.reblog?
 
-  def filter_from_mentions?(status, receiver)
-    should_filter   = receiver.id == status.account_id                                      # Filter if I'm mentioning myself
-    should_filter ||= receiver.blocking?(status.account)                                    # or it's from someone I blocked
-    should_filter ||= receiver.blocking?(status.mentions.includes(:account).map(&:account)) # or if it mentions someone I blocked
-    should_filter ||= (status.account.silenced? && !receiver.following?(status.account))    # of if the account is silenced and I'm not following them
+    return true if Block.where(account_id: receiver_id, target_account_id: check_for_blocks).any?
 
-    if status.reply? && !status.in_reply_to_account_id.nil?                                 # or it's a reply
-      should_filter ||= receiver.blocking?(status.in_reply_to_account)                      # to a user I blocked
+    if status.reply? && !status.in_reply_to_account_id.nil?                                                              # Filter out if it's a reply
+      should_filter   = !Follow.where(account_id: receiver_id, target_account_id: status.in_reply_to_account_id).exists? # and I'm not following the person it's a reply to
+      should_filter &&= !(receiver_id == status.in_reply_to_account_id)                                                  # and it's not a reply to me
+      should_filter &&= !(status.account_id == status.in_reply_to_account_id)                                            # and it's not a self-reply
+      return should_filter
+    elsif status.reblog?                                                                                                 # Filter out a reblog
+      return Block.where(account_id: status.reblog.account_id, target_account_id: receiver_id).exists?                   # or if the author of the reblogged status is blocking me
     end
 
+    false
+  end
+
+  def filter_from_mentions?(status, receiver_id)
+    check_for_blocks = [status.account_id]
+    check_for_blocks.concat(status.mentions.pluck(:account_id))
+    check_for_blocks.concat([status.in_reply_to_account]) if status.reply? && !status.in_reply_to_account_id.nil?
+
+    should_filter   = receiver_id == status.account_id                                                                                   # Filter if I'm mentioning myself
+    should_filter ||= Block.where(account_id: receiver_id, target_account_id: check_for_blocks).any?                                     # or it's from someone I blocked, in reply to someone I blocked, or mentioning someone I blocked
+    should_filter ||= (status.account.silenced? && !Follow.where(account_id: receiver_id, target_account_id: status.account_id).exists?) # of if the account is silenced and I'm not following them
+
     should_filter
   end
 end
diff --git a/app/lib/inline_rabl_scope.rb b/app/lib/inline_rabl_scope.rb
new file mode 100644
index 000000000..26adcb03a
--- /dev/null
+++ b/app/lib/inline_rabl_scope.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class InlineRablScope
+  include RoutingHelper
+
+  def initialize(account)
+    @account = account
+  end
+
+  def current_user
+    @account.try(:user)
+  end
+
+  def current_account
+    @account
+  end
+end
diff --git a/app/lib/inline_renderer.rb b/app/lib/inline_renderer.rb
new file mode 100644
index 000000000..8e04ad1d5
--- /dev/null
+++ b/app/lib/inline_renderer.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class InlineRenderer
+  def self.render(status, current_account, template)
+    Rabl::Renderer.new(
+      template,
+      status,
+      view_path: 'app/views',
+      format: :json,
+      scope: InlineRablScope.new(current_account)
+    ).render
+  end
+end
diff --git a/app/models/block.rb b/app/models/block.rb
index 9c55703c9..ae456a6b6 100644
--- a/app/models/block.rb
+++ b/app/models/block.rb
@@ -3,9 +3,8 @@
 class Block < ApplicationRecord
   include Paginable
 
-  belongs_to :account
-  belongs_to :target_account, class_name: 'Account'
+  belongs_to :account, required: true
+  belongs_to :target_account, class_name: 'Account', required: true
 
-  validates :account, :target_account, presence: true
   validates :account_id, uniqueness: { scope: :target_account_id }
 end
diff --git a/app/models/feed.rb b/app/models/feed.rb
index 5e1905e15..3cbc160a0 100644
--- a/app/models/feed.rb
+++ b/app/models/feed.rb
@@ -10,17 +10,9 @@ class Feed
     max_id     = '+inf' if max_id.blank?
     since_id   = '-inf' if since_id.blank?
     unhydrated = redis.zrevrangebyscore(key, "(#{max_id}", "(#{since_id}", limit: [0, limit], with_scores: true).map(&:last).map(&:to_i)
+    status_map = Status.where(id: unhydrated).cache_ids.map { |s| [s.id, s] }.to_h
 
-    # If we're after most recent items and none are there, we need to precompute the feed
-    if unhydrated.empty? && max_id == '+inf' && since_id == '-inf'
-      RegenerationWorker.perform_async(@account.id, @type)
-      @statuses = Status.send("as_#{@type}_timeline", @account).cache_ids.paginate_by_max_id(limit, nil, nil)
-    else
-      status_map = Status.where(id: unhydrated).cache_ids.map { |s| [s.id, s] }.to_h
-      @statuses  = unhydrated.map { |id| status_map[id] }.compact
-    end
-
-    @statuses
+    unhydrated.map { |id| status_map[id] }.compact
   end
 
   private
diff --git a/app/models/follow.rb b/app/models/follow.rb
index 8bfe8b2f6..b6b9dca7c 100644
--- a/app/models/follow.rb
+++ b/app/models/follow.rb
@@ -3,11 +3,14 @@
 class Follow < ApplicationRecord
   include Paginable
 
-  belongs_to :account, counter_cache: :following_count
-  belongs_to :target_account, class_name: 'Account', counter_cache: :followers_count
+  belongs_to :account, counter_cache: :following_count, required: true
+
+  belongs_to :target_account,
+             class_name: 'Account',
+             counter_cache: :followers_count,
+             required: true
 
   has_one :notification, as: :activity, dependent: :destroy
 
-  validates :account, :target_account, presence: true
   validates :account_id, uniqueness: { scope: :target_account_id }
 end
diff --git a/app/models/follow_request.rb b/app/models/follow_request.rb
index 4224ab15d..20e1332dd 100644
--- a/app/models/follow_request.rb
+++ b/app/models/follow_request.rb
@@ -3,12 +3,11 @@
 class FollowRequest < ApplicationRecord
   include Paginable
 
-  belongs_to :account
-  belongs_to :target_account, class_name: 'Account'
+  belongs_to :account, required: true
+  belongs_to :target_account, class_name: 'Account', required: true
 
   has_one :notification, as: :activity, dependent: :destroy
 
-  validates :account, :target_account, presence: true
   validates :account_id, uniqueness: { scope: :target_account_id }
 
   def authorize!
diff --git a/app/models/mention.rb b/app/models/mention.rb
index 10a9cb1cd..03e76fcc4 100644
--- a/app/models/mention.rb
+++ b/app/models/mention.rb
@@ -1,11 +1,10 @@
 # frozen_string_literal: true
 
 class Mention < ApplicationRecord
-  belongs_to :account, inverse_of: :mentions
-  belongs_to :status
+  belongs_to :account, inverse_of: :mentions, required: true
+  belongs_to :status, required: true
 
   has_one :notification, as: :activity, dependent: :destroy
 
-  validates :account, :status, presence: true
   validates :account, uniqueness: { scope: :status }
 end
diff --git a/app/models/report.rb b/app/models/report.rb
index 05dc8cff1..fd8e46aac 100644
--- a/app/models/report.rb
+++ b/app/models/report.rb
@@ -3,6 +3,7 @@
 class Report < ApplicationRecord
   belongs_to :account
   belongs_to :target_account, class_name: 'Account'
+  belongs_to :action_taken_by_account, class_name: 'Account'
 
   scope :unresolved, -> { where(action_taken: false) }
   scope :resolved,   -> { where(action_taken: true) }
diff --git a/app/models/status.rb b/app/models/status.rb
index 81b26fd14..6948ad77c 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -161,9 +161,9 @@ class Status < ApplicationRecord
       return where.not(visibility: [:private, :direct]) if account.nil?
 
       if target_account.blocking?(account) # get rid of blocked peeps
-        where('1 = 0')
+        none
       elsif account.id == target_account.id # author can see own stuff
-        where('1 = 1')
+        all
       elsif account.following?(target_account) # followers can see followers-only stuff, but also things they are mentioned in
         joins('LEFT OUTER JOIN mentions ON statuses.id = mentions.status_id AND mentions.account_id = ' + account.id.to_s)
           .where('statuses.visibility != ? OR mentions.id IS NOT NULL', Status.visibilities[:direct])
@@ -188,7 +188,7 @@ class Status < ApplicationRecord
   end
 
   before_validation do
-    text.strip!
+    text&.strip!
     spoiler_text&.strip!
 
     self.reply                  = !(in_reply_to_id.nil? && thread.nil?) unless reply
diff --git a/app/services/block_domain_service.rb b/app/services/block_domain_service.rb
index 9518b1fcf..6c131bd34 100644
--- a/app/services/block_domain_service.rb
+++ b/app/services/block_domain_service.rb
@@ -1,13 +1,11 @@
 # frozen_string_literal: true
 
 class BlockDomainService < BaseService
-  def call(domain, severity)
-    DomainBlock.where(domain: domain).first_or_create!(domain: domain, severity: severity)
-
-    if severity == :silence
-      Account.where(domain: domain).update_all(silenced: true)
+  def call(domain_block)
+    if domain_block.silence?
+      Account.where(domain: domain_block.domain).update_all(silenced: true)
     else
-      Account.where(domain: domain).find_each do |account|
+      Account.where(domain: domain_block.domain).find_each do |account|
         account.subscription(api_subscription_url(account.id)).unsubscribe if account.subscribed?
         SuspendAccountService.new.call(account)
       end
diff --git a/app/services/fan_out_on_write_service.rb b/app/services/fan_out_on_write_service.rb
index 402b84b2f..c63fcc1fe 100644
--- a/app/services/fan_out_on_write_service.rb
+++ b/app/services/fan_out_on_write_service.rb
@@ -4,6 +4,8 @@ class FanOutOnWriteService < BaseService
   # Push a status into home and mentions feeds
   # @param [Status] status
   def call(status)
+    raise Mastodon::RaceConditionError if status.visibility.nil?
+
     deliver_to_self(status) if status.account.local?
 
     if status.direct_visibility?
@@ -14,6 +16,7 @@ class FanOutOnWriteService < BaseService
 
     return if status.account.silenced? || !status.public_visibility? || status.reblog?
 
+    render_anonymous_payload(status)
     deliver_to_hashtags(status)
 
     return if status.reply? && status.in_reply_to_account_id != status.account_id
@@ -31,9 +34,8 @@ class FanOutOnWriteService < BaseService
   def deliver_to_followers(status)
     Rails.logger.debug "Delivering status #{status.id} to followers"
 
-    status.account.followers.where(domain: nil).joins(:user).where('users.current_sign_in_at > ?', 14.days.ago).find_each do |follower|
-      next if FeedManager.instance.filter?(:home, status, follower)
-      FeedManager.instance.push(:home, follower, status)
+    status.account.followers.where(domain: nil).joins(:user).where('users.current_sign_in_at > ?', 14.days.ago).select(:id).find_each do |follower|
+      FeedInsertWorker.perform_async(status.id, follower.id)
     end
   end
 
@@ -42,28 +44,28 @@ class FanOutOnWriteService < BaseService
 
     status.mentions.includes(:account).each do |mention|
       mentioned_account = mention.account
-      next if !mentioned_account.local? || !mentioned_account.following?(status.account) || FeedManager.instance.filter?(:home, status, mentioned_account)
+      next if !mentioned_account.local? || !mentioned_account.following?(status.account) || FeedManager.instance.filter?(:home, status, mention.account_id)
       FeedManager.instance.push(:home, mentioned_account, status)
     end
   end
 
+  def render_anonymous_payload(status)
+    @payload = InlineRenderer.render(status, nil, 'api/v1/statuses/show')
+  end
+
   def deliver_to_hashtags(status)
     Rails.logger.debug "Delivering status #{status.id} to hashtags"
 
-    payload = FeedManager.instance.inline_render(nil, 'api/v1/statuses/show', status)
-
-    status.tags.find_each do |tag|
-      FeedManager.instance.broadcast("hashtag:#{tag.name}", event: 'update', payload: payload)
-      FeedManager.instance.broadcast("hashtag:#{tag.name}:local", event: 'update', payload: payload) if status.account.local?
+    status.tags.pluck(:name).each do |hashtag|
+      Redis.current.publish("hashtag:#{hashtag}", Oj.dump(event: :update, payload: @payload))
+      Redis.current.publish("hashtag:#{hashtag}:local", Oj.dump(event: :update, payload: @payload)) if status.account.local?
     end
   end
 
   def deliver_to_public(status)
     Rails.logger.debug "Delivering status #{status.id} to public timeline"
 
-    payload = FeedManager.instance.inline_render(nil, 'api/v1/statuses/show', status)
-
-    FeedManager.instance.broadcast(:public, event: 'update', payload: payload)
-    FeedManager.instance.broadcast('public:local', event: 'update', payload: payload) if status.account.local?
+    Redis.current.publish('public', Oj.dump(event: 'update', payload: @payload))
+    Redis.current.publish('public:local', Oj.dump(event: 'update', payload: @payload)) if status.account.local?
   end
 end
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index 942cd9d21..62508a049 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -17,7 +17,7 @@ class NotifyService < BaseService
   private
 
   def blocked_mention?
-    FeedManager.instance.filter?(:mentions, @notification.mention.status, @recipient)
+    FeedManager.instance.filter?(:mentions, @notification.mention.status, @recipient.id)
   end
 
   def blocked_favourite?
@@ -50,7 +50,7 @@ class NotifyService < BaseService
   def create_notification
     @notification.save!
     return unless @notification.browserable?
-    FeedManager.instance.broadcast(@recipient.id, event: 'notification', payload: FeedManager.instance.inline_render(@recipient, 'api/v1/notifications/show', @notification))
+    Redis.current.publish(@recipient.id, Oj.dump(event: :notification, payload: InlineRenderer.render(@notification, @recipient, 'api/v1/notifications/show')))
   end
 
   def send_email
diff --git a/app/services/precompute_feed_service.rb b/app/services/precompute_feed_service.rb
index e1ec56e8d..07dcb81da 100644
--- a/app/services/precompute_feed_service.rb
+++ b/app/services/precompute_feed_service.rb
@@ -5,9 +5,11 @@ class PrecomputeFeedService < BaseService
   # @param [Symbol] type :home or :mentions
   # @param [Account] account
   def call(_, account)
-    Status.as_home_timeline(account).limit(FeedManager::MAX_ITEMS).each do |status|
-      next if status.direct_visibility? || FeedManager.instance.filter?(:home, status, account)
-      redis.zadd(FeedManager.instance.key(:home, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
+    redis.pipelined do
+      Status.as_home_timeline(account).limit(FeedManager::MAX_ITEMS / 4).each do |status|
+        next if status.direct_visibility? || FeedManager.instance.filter?(:home, status, account.id)
+        redis.zadd(FeedManager.instance.key(:home, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
+      end
     end
   end
 
diff --git a/app/services/remove_status_service.rb b/app/services/remove_status_service.rb
index cf1f432e4..e19fdd030 100644
--- a/app/services/remove_status_service.rb
+++ b/app/services/remove_status_service.rb
@@ -65,17 +65,17 @@ class RemoveStatusService < BaseService
       redis.zremrangebyscore(FeedManager.instance.key(type, receiver.id), status.id, status.id)
     end
 
-    FeedManager.instance.broadcast(receiver.id, event: 'delete', payload: status.id)
+    Redis.current.publish(receiver.id, Oj.dump(event: :delete, payload: status.id))
   end
 
   def remove_from_hashtags(status)
     status.tags.each do |tag|
-      FeedManager.instance.broadcast("hashtag:#{tag.name}", event: 'delete', payload: status.id)
+      Redis.current.publish("hashtag:#{tag.name}", Oj.dump(event: :delete, payload: status.id))
     end
   end
 
   def remove_from_public(status)
-    FeedManager.instance.broadcast(:public, event: 'delete', payload: status.id)
+    Redis.current.publish('public', Oj.dump(event: :delete, payload: status.id))
   end
 
   def redis
diff --git a/app/views/about/index.html.haml b/app/views/about/index.html.haml
index fdfb2b916..ebca4213a 100644
--- a/app/views/about/index.html.haml
+++ b/app/views/about/index.html.haml
@@ -24,21 +24,34 @@
   .screenshot-with-signup
     .mascot= image_tag 'fluffy-elephant-friend.png'
 
-    = simple_form_for(@user, url: user_registration_path) do |f|
-      = f.simple_fields_for :account do |ff|
-        = ff.input :username, autofocus: true, placeholder: t('simple_form.labels.defaults.username'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username') }
+    - if @open_registrations
+      = simple_form_for(@user, url: user_registration_path) do |f|
+        = f.simple_fields_for :account do |ff|
+          = ff.input :username, autofocus: true, placeholder: t('simple_form.labels.defaults.username'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username') }
 
-      = f.input :email, placeholder: t('simple_form.labels.defaults.email'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.email') }
-      = f.input :password, autocomplete: "off", placeholder: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password') }
-      = f.input :password_confirmation, autocomplete: "off", placeholder: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password') }
+        = f.input :email, placeholder: t('simple_form.labels.defaults.email'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.email') }
+        = f.input :password, autocomplete: "off", placeholder: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password') }
+        = f.input :password_confirmation, autocomplete: "off", placeholder: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password') }
 
-      .actions
-        = f.button :button, t('about.get_started'), type: :submit
+        .actions
+          = f.button :button, t('about.get_started'), type: :submit
 
-      .info
-        = link_to t('auth.login'), new_user_session_path, class: 'webapp-btn'
-        ·
-        = link_to t('about.about_this'), about_more_path
+        .info
+          = link_to t('auth.login'), new_user_session_path, class: 'webapp-btn'
+          ·
+          = link_to t('about.about_this'), about_more_path
+    - else
+      .closed-registrations-message
+        - if @closed_registrations_message.blank?
+          %p= t('about.closed_registrations')
+        - else
+          = @closed_registrations_message.html_safe
+        .info
+          = link_to t('auth.login'), new_user_session_path, class: 'webapp-btn'
+          ·
+          = link_to t('about.other_instances'), 'https://github.com/tootsuite/mastodon/blob/master/docs/Using-Mastodon/List-of-Mastodon-instances.md'
+          ·
+          = link_to t('about.about_this'), about_more_path
 
   %h3= t('about.features_headline')
 
diff --git a/app/views/admin/domain_blocks/index.html.haml b/app/views/admin/domain_blocks/index.html.haml
index dbaeb4716..eb7894b86 100644
--- a/app/views/admin/domain_blocks/index.html.haml
+++ b/app/views/admin/domain_blocks/index.html.haml
@@ -14,3 +14,4 @@
         %td= block.severity
 
 = will_paginate @blocks, pagination_options
+= link_to 'Add new', new_admin_domain_block_path, class: 'button'
diff --git a/app/views/admin/domain_blocks/new.html.haml b/app/views/admin/domain_blocks/new.html.haml
new file mode 100644
index 000000000..fbd39d6cf
--- /dev/null
+++ b/app/views/admin/domain_blocks/new.html.haml
@@ -0,0 +1,18 @@
+- content_for :page_title do
+  New domain block
+
+= simple_form_for @domain_block, url: admin_domain_blocks_path do |f|
+  = render 'shared/error_messages', object: @domain_block
+
+  %p.hint The domain block will not prevent creation of account entries in the database, but will retroactively and automatically apply specific moderation methods on those accounts.
+
+  = f.input :domain, placeholder: 'Domain'
+  = f.input :severity, collection: DomainBlock.severities.keys, wrapper: :with_label, include_blank: false
+
+  %p.hint
+    %strong Silence
+    will make the account's posts invisible to anyone who isn't following them.
+    %strong Suspend
+    will remove all of the account's content, media, and profile data.
+  .actions
+    = f.button :button, 'Create block', type: :submit
diff --git a/app/views/admin/reports/index.html.haml b/app/views/admin/reports/index.html.haml
index 8a5414cef..839259dc2 100644
--- a/app/views/admin/reports/index.html.haml
+++ b/app/views/admin/reports/index.html.haml
@@ -8,20 +8,25 @@
       %li= filter_link_to 'Unresolved', action_taken: nil
       %li= filter_link_to 'Resolved', action_taken: '1'
 
-%table.table
-  %thead
-    %tr
-      %th ID
-      %th Target
-      %th Reported by
-      %th Comment
-      %th
-  %tbody
-    - @reports.each do |report|
+= form_tag do
+
+  %table.table
+    %thead
       %tr
-        %td= "##{report.id}"
-        %td= link_to report.target_account.acct, admin_account_path(report.target_account.id)
-        %td= link_to report.account.acct, admin_account_path(report.account.id)
-        %td= truncate(report.comment, length: 30, separator: ' ')
-        %td= table_link_to 'circle', 'View', admin_report_path(report)
+        %th
+        %th ID
+        %th Target
+        %th Reported by
+        %th Comment
+        %th
+    %tbody
+      - @reports.each do |report|
+        %tr
+          %td= check_box_tag 'select', report.id
+          %td= "##{report.id}"
+          %td= link_to report.target_account.acct, admin_account_path(report.target_account.id)
+          %td= link_to report.account.acct, admin_account_path(report.account.id)
+          %td= truncate(report.comment, length: 30, separator: ' ')
+          %td= table_link_to 'circle', 'View', admin_report_path(report)
+
 = will_paginate @reports, pagination_options
diff --git a/app/views/admin/reports/show.html.haml b/app/views/admin/reports/show.html.haml
index 74cac016d..caa8415df 100644
--- a/app/views/admin/reports/show.html.haml
+++ b/app/views/admin/reports/show.html.haml
@@ -27,7 +27,7 @@
         = link_to remove_admin_report_path(@report, status_id: status.id), method: :post, class: 'icon-button', style: 'font-size: 24px; width: 24px; height: 24px', title: 'Delete' do
           = fa_icon 'trash'
 
-- unless @report.action_taken?
+- if !@report.action_taken?
   %hr/
 
   %div{ style: 'overflow: hidden' }
@@ -36,3 +36,9 @@
       = link_to 'Suspend account', suspend_admin_report_path(@report), method: :post, class: 'button'
     %div{ style: 'float: left' }
       = link_to 'Mark as resolved', resolve_admin_report_path(@report), method: :post, class: 'button'
+- elsif !@report.action_taken_by_account.nil?
+  %hr/
+
+  %p
+    %strong Action taken by:
+    = @report.action_taken_by_account.acct
diff --git a/app/views/admin/settings/index.html.haml b/app/views/admin/settings/index.html.haml
index 1429dbd9e..02faac8c2 100644
--- a/app/views/admin/settings/index.html.haml
+++ b/app/views/admin/settings/index.html.haml
@@ -38,3 +38,15 @@
         %br/
         You can use HTML tags
       %td= best_in_place @settings['site_extended_description'], :value, as: :textarea, url: admin_setting_path(@settings['site_extended_description'])
+    %tr
+      %td
+        %strong Open registration
+      %td= best_in_place @settings['open_registrations'], :value, as: :checkbox, collection: { false: 'Disabled', true: 'Enabled'}, url: admin_setting_path(@settings['open_registrations'])
+    %tr
+      %td
+        %strong Closed registration message
+        %br/
+        Displayed on frontpage when registrations are closed
+        %br/
+        You can use HTML tags
+      %td= best_in_place @settings['closed_registrations_message'], :value, as: :textarea, url: admin_setting_path(@settings['closed_registrations_message'])
diff --git a/app/workers/after_remote_follow_request_worker.rb b/app/workers/after_remote_follow_request_worker.rb
index f1d6869cc..928069211 100644
--- a/app/workers/after_remote_follow_request_worker.rb
+++ b/app/workers/after_remote_follow_request_worker.rb
@@ -3,7 +3,7 @@
 class AfterRemoteFollowRequestWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: 5
+  sidekiq_options queue: 'pull', retry: 5
 
   def perform(follow_request_id)
     follow_request  = FollowRequest.find(follow_request_id)
@@ -13,5 +13,7 @@ class AfterRemoteFollowRequestWorker
 
     follow_request.destroy
     FollowService.new.call(follow_request.account, updated_account.acct)
+  rescue ActiveRecord::RecordNotFound
+    true
   end
 end
diff --git a/app/workers/after_remote_follow_worker.rb b/app/workers/after_remote_follow_worker.rb
index 0d04456a9..d12fa3454 100644
--- a/app/workers/after_remote_follow_worker.rb
+++ b/app/workers/after_remote_follow_worker.rb
@@ -3,7 +3,7 @@
 class AfterRemoteFollowWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: 5
+  sidekiq_options queue: 'pull', retry: 5
 
   def perform(follow_id)
     follow          = Follow.find(follow_id)
@@ -13,5 +13,7 @@ class AfterRemoteFollowWorker
 
     follow.destroy
     FollowService.new.call(follow.account, updated_account.acct)
+  rescue ActiveRecord::RecordNotFound
+    true
   end
 end
diff --git a/app/workers/application_worker.rb b/app/workers/application_worker.rb
new file mode 100644
index 000000000..f2d7c1062
--- /dev/null
+++ b/app/workers/application_worker.rb
@@ -0,0 +1,5 @@
+class ApplicationWorker
+  def info(message)
+    Rails.logger.info("#{self.class.name} - #{message}")
+  end
+end
diff --git a/app/workers/distribution_worker.rb b/app/workers/distribution_worker.rb
index f4e738d80..9a2867ea6 100644
--- a/app/workers/distribution_worker.rb
+++ b/app/workers/distribution_worker.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-class DistributionWorker
+class DistributionWorker < ApplicationWorker
   include Sidekiq::Worker
 
   def perform(status_id)
@@ -9,6 +9,6 @@ class DistributionWorker
     FanOutOnWriteService.new.call(status)
     WarmCacheService.new.call(status)
   rescue ActiveRecord::RecordNotFound
-    true
+    info("Couldn't find the status")
   end
 end
diff --git a/app/workers/domain_block_worker.rb b/app/workers/domain_block_worker.rb
new file mode 100644
index 000000000..884477829
--- /dev/null
+++ b/app/workers/domain_block_worker.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class DomainBlockWorker
+  include Sidekiq::Worker
+
+  def perform(domain_block_id)
+    BlockDomainService.new.call(DomainBlock.find(domain_block_id))
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end
diff --git a/app/workers/feed_insert_worker.rb b/app/workers/feed_insert_worker.rb
new file mode 100644
index 000000000..a58dfaa74
--- /dev/null
+++ b/app/workers/feed_insert_worker.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class FeedInsertWorker
+  include Sidekiq::Worker
+
+  def perform(status_id, follower_id)
+    status   = Status.find(status_id)
+    follower = Account.find(follower_id)
+
+    return if FeedManager.instance.filter?(:home, status, follower.id)
+    FeedManager.instance.push(:home, follower, status)
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end
diff --git a/app/workers/import_worker.rb b/app/workers/import_worker.rb
index a3ae2a85a..7cf29fb53 100644
--- a/app/workers/import_worker.rb
+++ b/app/workers/import_worker.rb
@@ -5,7 +5,7 @@ require 'csv'
 class ImportWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: false
+  sidekiq_options queue: 'pull', retry: false
 
   def perform(import_id)
     import = Import.find(import_id)
diff --git a/app/workers/link_crawl_worker.rb b/app/workers/link_crawl_worker.rb
index af3394b8b..834b0088b 100644
--- a/app/workers/link_crawl_worker.rb
+++ b/app/workers/link_crawl_worker.rb
@@ -3,7 +3,7 @@
 class LinkCrawlWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: false
+  sidekiq_options queue: 'pull', retry: false
 
   def perform(status_id)
     FetchLinkCardService.new.call(Status.find(status_id))
diff --git a/app/workers/merge_worker.rb b/app/workers/merge_worker.rb
index 0f288f43f..d745cb99c 100644
--- a/app/workers/merge_worker.rb
+++ b/app/workers/merge_worker.rb
@@ -3,6 +3,8 @@
 class MergeWorker
   include Sidekiq::Worker
 
+  sidekiq_options queue: 'pull'
+
   def perform(from_account_id, into_account_id)
     FeedManager.instance.merge_into_timeline(Account.find(from_account_id), Account.find(into_account_id))
   end
diff --git a/app/workers/notification_worker.rb b/app/workers/notification_worker.rb
index 1a2faefd8..da1d6ab45 100644
--- a/app/workers/notification_worker.rb
+++ b/app/workers/notification_worker.rb
@@ -3,7 +3,7 @@
 class NotificationWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: 5
+  sidekiq_options queue: 'push', retry: 5
 
   def perform(xml, source_account_id, target_account_id)
     SendInteractionService.new.call(xml, Account.find(source_account_id), Account.find(target_account_id))
diff --git a/app/workers/pubsubhubbub/delivery_worker.rb b/app/workers/pubsubhubbub/delivery_worker.rb
index 15005bc80..466def3a8 100644
--- a/app/workers/pubsubhubbub/delivery_worker.rb
+++ b/app/workers/pubsubhubbub/delivery_worker.rb
@@ -22,6 +22,7 @@ class Pubsubhubbub::DeliveryWorker
                    .headers(headers)
                    .post(subscription.callback_url, body: payload)
 
+    return subscription.destroy! if response.code > 299 && response.code < 500 && response.code != 429 # HTTP 4xx means error is not temporary, except for 429 (throttling)
     raise "Delivery failed for #{subscription.callback_url}: HTTP #{response.code}" unless response.code > 199 && response.code < 300
 
     subscription.touch(:last_successful_delivery_at)
diff --git a/app/workers/push_update_worker.rb b/app/workers/push_update_worker.rb
new file mode 100644
index 000000000..fbcdcf634
--- /dev/null
+++ b/app/workers/push_update_worker.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class PushUpdateWorker
+  include Sidekiq::Worker
+
+  def perform(account_id, status_id)
+    account = Account.find(account_id)
+    status  = Status.find(status_id)
+    message = InlineRenderer.render(status, account, 'api/v1/statuses/show')
+
+    Redis.current.publish("timeline:#{account.id}", Oj.dump(event: :update, payload: message, queued_at: (Time.now.to_f * 1000.0).to_i))
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end
diff --git a/app/workers/regeneration_worker.rb b/app/workers/regeneration_worker.rb
index 3aece0ba2..da8b845f6 100644
--- a/app/workers/regeneration_worker.rb
+++ b/app/workers/regeneration_worker.rb
@@ -3,7 +3,9 @@
 class RegenerationWorker
   include Sidekiq::Worker
 
-  def perform(account_id, timeline_type)
-    PrecomputeFeedService.new.call(timeline_type, Account.find(account_id))
+  sidekiq_options queue: 'pull', backtrace: true, unique: :until_executed
+
+  def perform(account_id, _ = :home)
+    PrecomputeFeedService.new.call(:home, Account.find(account_id))
   end
 end
diff --git a/app/workers/thread_resolve_worker.rb b/app/workers/thread_resolve_worker.rb
index 593edd032..38287e8e6 100644
--- a/app/workers/thread_resolve_worker.rb
+++ b/app/workers/thread_resolve_worker.rb
@@ -3,7 +3,7 @@
 class ThreadResolveWorker
   include Sidekiq::Worker
 
-  sidekiq_options retry: false
+  sidekiq_options queue: 'pull', retry: false
 
   def perform(child_status_id, parent_url)
     child_status  = Status.find(child_status_id)
diff --git a/app/workers/unmerge_worker.rb b/app/workers/unmerge_worker.rb
index dbf7243de..ea6aacebf 100644
--- a/app/workers/unmerge_worker.rb
+++ b/app/workers/unmerge_worker.rb
@@ -3,6 +3,8 @@
 class UnmergeWorker
   include Sidekiq::Worker
 
+  sidekiq_options queue: 'pull'
+
   def perform(from_account_id, into_account_id)
     FeedManager.instance.unmerge_from_timeline(Account.find(from_account_id), Account.find(into_account_id))
   end