Bump version to 3.4.4

Fix regression from #16896

.env.production.sample

@@ -4,6 +4,12 @@
 # not demonstrate all available configuration options. Please look at
 # https://docs.joinmastodon.org/admin/config/ for the full documentation.
 
+# Note that this file accepts slightly different syntax depending on whether
+# you are using `docker-compose` or not. In particular, if you use
+# `docker-compose`, the value of each declared variable will be taken verbatim,
+# including surrounding quotes.
+# See: https://github.com/mastodon/mastodon/issues/16895
+
 # Federation
 # ----------
 # This identifies your server and cannot be changed safely later

.github/CODEOWNERS

@@ -1,4 +1,4 @@
-# CODEOWNERS for tootsuite/mastodon
+# CODEOWNERS for mastodon/mastodon
 
 # Translators
 # To add translator, copy these lines, replace `fr` with appropriate language code and replace `@żelipapą` with user's GitHub nickname preceded by `@` sign or e-mail address.

AUTHORS.md

@@ -1,7 +1,7 @@
 Authors
 =======
 
-Mastodon is available on [GitHub](https://github.com/tootsuite/mastodon)
+Mastodon is available on [GitHub](https://github.com/mastodon/mastodon)
 and provided thanks to the work of the following contributors:
 
 * [Gargron](https://github.com/Gargron)
@@ -719,7 +719,7 @@ and provided thanks to the work of the following contributors:
 * [西小倉宏信](mailto:nishiko@mindia.jp)
 * [雨宮美羽](mailto:k737566@gmail.com)
 
-This document is provided for informational purposes only. Since it is only updated once per release, the version you are looking at may be currently out of date. To see the full list of contributors, consider looking at the [git history](https://github.com/tootsuite/mastodon/graphs/contributors) instead.
+This document is provided for informational purposes only. Since it is only updated once per release, the version you are looking at may be currently out of date. To see the full list of contributors, consider looking at the [git history](https://github.com/mastodon/mastodon/graphs/contributors) instead.
 
 ## Translators
 

CONTRIBUTING.md

@@ -14,7 +14,7 @@ If your contributions are accepted into Mastodon, you can request to be paid thr
 
 ## Bug reports
 
-Bug reports and feature suggestions must use descriptive and concise titles and be submitted to [GitHub Issues](https://github.com/tootsuite/mastodon/issues). Please use the search function to make sure that you are not submitting duplicates, and that a similar report or request has not already been resolved or rejected.
+Bug reports and feature suggestions must use descriptive and concise titles and be submitted to [GitHub Issues](https://github.com/mastodon/mastodon/issues). Please use the search function to make sure that you are not submitting duplicates, and that a similar report or request has not already been resolved or rejected.
 
 ## Translations
 
@@ -44,4 +44,4 @@ It is not always possible to phrase every change in such a manner, but it is des
 
 ## Documentation
 
-The [Mastodon documentation](https://docs.joinmastodon.org) is a statically generated site. You can [submit merge requests to tootsuite/documentation](https://github.com/tootsuite/documentation).
+The [Mastodon documentation](https://docs.joinmastodon.org) is a statically generated site. You can [submit merge requests to mastodon/documentation](https://github.com/mastodon/documentation).

README.md

@@ -1,14 +1,14 @@
 ![Mastodon](https://i.imgur.com/NhZc40l.png)
 ========
 
-[![GitHub release](https://img.shields.io/github/release/tootsuite/mastodon.svg)][releases]
+[![GitHub release](https://img.shields.io/github/release/mastodon/mastodon.svg)][releases]
-[![Build Status](https://img.shields.io/circleci/project/github/tootsuite/mastodon.svg)][circleci]
+[![Build Status](https://img.shields.io/circleci/project/github/mastodon/mastodon.svg)][circleci]
 [![Code Climate](https://img.shields.io/codeclimate/maintainability/tootsuite/mastodon.svg)][code_climate]
 [![Crowdin](https://d322cqt584bo4o.cloudfront.net/mastodon/localized.svg)][crowdin]
 [![Docker Pulls](https://img.shields.io/docker/pulls/tootsuite/mastodon.svg)][docker]
 
-[releases]: https://github.com/tootsuite/mastodon/releases
+[releases]: https://github.com/mastodon/mastodon/releases
-[circleci]: https://circleci.com/gh/tootsuite/mastodon
+[circleci]: https://circleci.com/gh/mastodon/mastodon
 [code_climate]: https://codeclimate.com/github/tootsuite/mastodon
 [crowdin]: https://crowdin.com/project/mastodon
 [docker]: https://hub.docker.com/r/tootsuite/mastodon/

app.json

@@ -1,8 +1,8 @@
 {
   "name": "Mastodon",
   "description": "A GNU Social-compatible microblogging server",
-  "repository": "https://github.com/tootsuite/mastodon",
+  "repository": "https://github.com/mastodon/mastodon",
-  "logo": "https://github.com/tootsuite.png",
+  "logo": "https://github.com/mastodon.png",
   "env": {
     "HEROKU": {
       "description": "Leave this as true",

app/controllers/activitypub/followers_synchronizations_controller.rb

@@ -19,11 +19,11 @@ class ActivityPub::FollowersSynchronizationsController < ActivityPub::BaseContro
   private
 
   def uri_prefix
-    signed_request_account.uri[/http(s?):\/\/[^\/]+\//]
+    signed_request_account.uri[Account::URL_PREFIX_RE]
   end
 
   def set_items
-    @items = @account.followers.where(Account.arel_table[:uri].matches(uri_prefix + '%', false, true)).pluck(:uri)
+    @items = @account.followers.where(Account.arel_table[:uri].matches("#{Account.sanitize_sql_like(uri_prefix)}/%", false, true)).or(@account.followers.where(uri: uri_prefix)).pluck(:uri)
   end
 
   def collection_presenter

app/controllers/activitypub/outboxes_controller.rb

@@ -11,7 +11,11 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
   before_action :set_cache_headers
 
   def show
-    expires_in(page_requested? ? 0 : 3.minutes, public: public_fetch_mode? && !(signed_request_account.present? && page_requested?))
+    if page_requested?
+      expires_in(1.minute, public: public_fetch_mode? && signed_request_account.nil?)
+    else
+      expires_in(3.minutes, public: public_fetch_mode?)
+    end
     render json: outbox_presenter, serializer: ActivityPub::OutboxSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
   end
 
@@ -76,4 +80,8 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
   def set_account
     @account = params[:account_username].present? ? Account.find_local!(username_param) : Account.representative
   end
+
+  def set_cache_headers
+    response.headers['Vary'] = 'Signature' if authorized_fetch_mode? || page_requested?
+  end
 end

app/controllers/admin/statuses_controller.rb

@@ -14,7 +14,7 @@ module Admin
       @statuses = @account.statuses.where(visibility: [:public, :unlisted])
 
       if params[:media]
-        @statuses.merge!(Status.joins(:media_attachments).merge(@account.media_attachments.reorder(nil)).group(:id))
+        @statuses.merge!(Status.joins(:media_attachments).merge(@account.media_attachments.reorder(nil)).group(:id)).reorder('statuses.id desc')
       end
 
       @statuses = @statuses.preload(:media_attachments, :mentions).page(params[:page]).per(PER_PAGE)

app/controllers/auth/passwords_controller.rb

@@ -10,7 +10,6 @@ class Auth::PasswordsController < Devise::PasswordsController
     super do |resource|
       if resource.errors.empty?
         resource.session_activations.destroy_all
-        resource.forget_me!
       end
     end
   end

app/controllers/auth/registrations_controller.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 class Auth::RegistrationsController < Devise::RegistrationsController
-  include Devise::Controllers::Rememberable
   include RegistrationSpamConcern
 
   layout :determine_layout
@@ -30,8 +29,6 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     super do |resource|
       if resource.saved_change_to_encrypted_password?
         resource.clear_other_sessions(current_session.session_id)
-        resource.forget_me!
-        remember_me(resource)
       end
     end
   end

app/controllers/auth/sessions_controller.rb

@@ -1,8 +1,6 @@
 # frozen_string_literal: true
 
 class Auth::SessionsController < Devise::SessionsController
-  include Devise::Controllers::Rememberable
-
   layout 'auth'
 
   skip_before_action :require_no_authentication, only: [:create]
@@ -26,7 +24,6 @@ class Auth::SessionsController < Devise::SessionsController
   def create
     super do |resource|
       resource.update_sign_in!(request, new_sign_in: true)
-      remember_me(resource)
       flash.delete(:notice)
     end
   end
@@ -40,7 +37,7 @@ class Auth::SessionsController < Devise::SessionsController
   end
 
   def webauthn_options
-    user = find_user
+    user = User.find_by(id: session[:attempt_user_id])
 
     if user.webauthn_enabled?
       options_for_get = WebAuthn::Credential.options_for_get(
@@ -58,16 +55,20 @@ class Auth::SessionsController < Devise::SessionsController
   protected
 
   def find_user
-    if session[:attempt_user_id]
+    if user_params[:email].present?
+      find_user_from_params
+    elsif session[:attempt_user_id]
       User.find_by(id: session[:attempt_user_id])
-    else
-      user   = User.authenticate_with_ldap(user_params) if Devise.ldap_authentication
-      user ||= User.authenticate_with_pam(user_params) if Devise.pam_authentication
-      user ||= User.find_for_authentication(email: user_params[:email])
-      user
     end
   end
 
+  def find_user_from_params
+    user   = User.authenticate_with_ldap(user_params) if Devise.ldap_authentication
+    user ||= User.authenticate_with_pam(user_params) if Devise.pam_authentication
+    user ||= User.find_for_authentication(email: user_params[:email])
+    user
+  end
+
   def user_params
     params.require(:user).permit(:email, :password, :otp_attempt, :sign_in_token_attempt, credential: {})
   end

app/controllers/concerns/sign_in_token_authentication_concern.rb

@@ -16,21 +16,24 @@ module SignInTokenAuthenticationConcern
   end
 
   def authenticate_with_sign_in_token
-    user = self.resource = find_user
+    if user_params[:email].present?
+      user = self.resource = find_user_from_params
+      prompt_for_sign_in_token(user) if user&.external_or_valid_password?(user_params[:password])
+    elsif session[:attempt_user_id]
+      user = self.resource = User.find_by(id: session[:attempt_user_id])
+      return if user.nil?
 
-    if user.present? && session[:attempt_user_id].present? && session[:attempt_user_updated_at] != user.updated_at.to_s
+      if session[:attempt_user_updated_at] != user.updated_at.to_s
-      restart_session
+        restart_session
-    elsif user_params.key?(:sign_in_token_attempt) && session[:attempt_user_id]
+      elsif user_params.key?(:sign_in_token_attempt)
-      authenticate_with_sign_in_token_attempt(user)
+        authenticate_with_sign_in_token_attempt(user)
-    elsif user.present? && user.external_or_valid_password?(user_params[:password])
+      end
-      prompt_for_sign_in_token(user)
     end
   end
 
   def authenticate_with_sign_in_token_attempt(user)
     if valid_sign_in_token_attempt?(user)
       clear_attempt_from_session
-      remember_me(user)
       sign_in(user)
     else
       flash.now[:alert] = I18n.t('users.invalid_sign_in_token')

app/controllers/concerns/two_factor_authentication_concern.rb

@@ -35,16 +35,20 @@ module TwoFactorAuthenticationConcern
   end
 
   def authenticate_with_two_factor
-    user = self.resource = find_user
+    if user_params[:email].present?
+      user = self.resource = find_user_from_params
+      prompt_for_two_factor(user) if user&.external_or_valid_password?(user_params[:password])
+    elsif session[:attempt_user_id]
+      user = self.resource = User.find_by(id: session[:attempt_user_id])
+      return if user.nil?
 
-    if user.present? && session[:attempt_user_id].present? && session[:attempt_user_updated_at] != user.updated_at.to_s
+      if session[:attempt_user_updated_at] != user.updated_at.to_s
-      restart_session
+        restart_session
-    elsif user.webauthn_enabled? && user_params.key?(:credential) && session[:attempt_user_id]
+      elsif user.webauthn_enabled? && user_params.key?(:credential)
-      authenticate_with_two_factor_via_webauthn(user)
+        authenticate_with_two_factor_via_webauthn(user)
-    elsif user_params.key?(:otp_attempt) && session[:attempt_user_id]
+      elsif user_params.key?(:otp_attempt)
-      authenticate_with_two_factor_via_otp(user)
+        authenticate_with_two_factor_via_otp(user)
-    elsif user.present? && user.external_or_valid_password?(user_params[:password])
+      end
-      prompt_for_two_factor(user)
     end
   end
 
@@ -53,7 +57,6 @@ module TwoFactorAuthenticationConcern
 
     if valid_webauthn_credential?(user, webauthn_credential)
       clear_attempt_from_session
-      remember_me(user)
       sign_in(user)
       render json: { redirect_path: root_path }, status: :ok
     else
@@ -64,7 +67,6 @@ module TwoFactorAuthenticationConcern
   def authenticate_with_two_factor_via_otp(user)
     if valid_otp_attempt?(user)
       clear_attempt_from_session
-      remember_me(user)
       sign_in(user)
     else
       flash.now[:alert] = I18n.t('users.invalid_otp_token')

app/controllers/follower_accounts_controller.rb

@@ -85,7 +85,7 @@ class FollowerAccountsController < ApplicationController
     if page_requested? || !@account.user_hides_network?
       # Return all fields
     else
-      %i(id type totalItems)
+      %i(id type total_items)
     end
   end
 end

app/controllers/following_accounts_controller.rb

@@ -85,7 +85,7 @@ class FollowingAccountsController < ApplicationController
     if page_requested? || !@account.user_hides_network?
       # Return all fields
     else
-      %i(id type totalItems)
+      %i(id type total_items)
     end
   end
 end

app/controllers/settings/deletes_controller.rb

@@ -42,7 +42,7 @@ class Settings::DeletesController < Settings::BaseController
   end
 
   def destroy_account!
-    current_account.suspend!(origin: :local)
+    current_account.suspend!(origin: :local, block_email: false)
     AccountDeletionWorker.perform_async(current_user.account_id)
     sign_out
   end

app/controllers/well_known/webfinger_controller.rb

@@ -4,7 +4,6 @@ module WellKnown
   class WebfingerController < ActionController::Base
     include RoutingHelper
 
-    before_action { response.headers['Vary'] = 'Accept' }
     before_action :set_account
     before_action :check_account_suspension
 
@@ -39,10 +38,12 @@ module WellKnown
     end
 
     def bad_request
+      expires_in(3.minutes, public: true)
       head 400
     end
 
     def not_found
+      expires_in(3.minutes, public: true)
       head 404
     end
 

app/helpers/accounts_helper.rb

@@ -80,17 +80,17 @@ module AccountsHelper
   def account_description(account)
     prepend_str = [
       [
-        number_to_human(account.statuses_count, strip_insignificant_zeros: true),
+        number_to_human(account.statuses_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.posts', count: account.statuses_count),
       ].join(' '),
 
       [
-        number_to_human(account.following_count, strip_insignificant_zeros: true),
+        number_to_human(account.following_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.following', count: account.following_count),
       ].join(' '),
 
       [
-        number_to_human(account.followers_count, strip_insignificant_zeros: true),
+        number_to_human(account.followers_count, precision: 3, strip_insignificant_zeros: true),
         I18n.t('accounts.followers', count: account.followers_count),
       ].join(' '),
     ].join(', ')

app/helpers/application_helper.rb

@@ -14,6 +14,17 @@ module ApplicationHelper
     ku
   ).freeze
 
+  def friendly_number_to_human(number, **options)
+    # By default, the number of precision digits used by number_to_human
+    # is looked up from the locales definition, and rails-i18n comes with
+    # values that don't seem to make much sense for many languages, so
+    # override these values with a default of 3 digits of precision.
+    options[:precision] = 3
+    options[:strip_insignificant_zeros] = true
+
+    number_to_human(number, **options)
+  end
+
   def active_nav_class(*paths)
     paths.any? { |path| current_page?(path) } ? 'active' : ''
   end

app/javascript/mastodon/actions/picture_in_picture.js

@@ -22,13 +22,20 @@ export const PICTURE_IN_PICTURE_REMOVE = 'PICTURE_IN_PICTURE_REMOVE';
  * @param {MediaProps} props
  * @return {object}
  */
-export const deployPictureInPicture = (statusId, accountId, playerType, props) => ({
+export const deployPictureInPicture = (statusId, accountId, playerType, props) => {
-  type: PICTURE_IN_PICTURE_DEPLOY,
+  return (dispatch, getState) => {
-  statusId,
+    // Do not open a player for a toot that does not exist
-  accountId,
+    if (getState().hasIn(['statuses', statusId])) {
-  playerType,
+      dispatch({
-  props,
+        type: PICTURE_IN_PICTURE_DEPLOY,
-});
+        statusId,
+        accountId,
+        playerType,
+        props,
+      });
+    }
+  };
+};
 
 /*
  * @return {object}

app/javascript/mastodon/components/intersection_observer_article.js

@@ -93,7 +93,7 @@ export default class IntersectionObserverArticle extends React.Component {
     // When the browser gets a chance, test if we're still not intersecting,
     // and if so, set our isHidden to true to trigger an unrender. The point of
     // this is to save DOM nodes and avoid using up too much memory.
-    // See: https://github.com/tootsuite/mastodon/issues/2900
+    // See: https://github.com/mastodon/mastodon/issues/2900
     this.setState((prevState) => ({ isHidden: !prevState.isIntersecting }));
   }
 

app/javascript/mastodon/components/modal_root.js

@@ -1,10 +1,15 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import 'wicg-inert';
+import { createBrowserHistory } from 'history';
 import { multiply } from 'color-blend';
 
 export default class ModalRoot extends React.PureComponent {
 
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
   static propTypes = {
     children: PropTypes.node,
     onClose: PropTypes.func.isRequired,
@@ -48,6 +53,7 @@ export default class ModalRoot extends React.PureComponent {
   componentDidMount () {
     window.addEventListener('keyup', this.handleKeyUp, false);
     window.addEventListener('keydown', this.handleKeyDown, false);
+    this.history = this.context.router ? this.context.router.history : createBrowserHistory();
   }
 
   componentWillReceiveProps (nextProps) {
@@ -69,6 +75,14 @@ export default class ModalRoot extends React.PureComponent {
         this.activeElement.focus({ preventScroll: true });
         this.activeElement = null;
       }).catch(console.error);
+
+      this._handleModalClose();
+    }
+    if (this.props.children && !prevProps.children) {
+      this._handleModalOpen();
+    }
+    if (this.props.children) {
+      this._ensureHistoryBuffer();
     }
   }
 
@@ -77,6 +91,32 @@ export default class ModalRoot extends React.PureComponent {
     window.removeEventListener('keydown', this.handleKeyDown);
   }
 
+  _handleModalOpen () {
+    this._modalHistoryKey = Date.now();
+    this.unlistenHistory = this.history.listen((_, action) => {
+      if (action === 'POP') {
+        this.props.onClose();
+      }
+    });
+  }
+
+  _handleModalClose () {
+    if (this.unlistenHistory) {
+      this.unlistenHistory();
+    }
+    const { state } = this.history.location;
+    if (state && state.mastodonModalKey === this._modalHistoryKey) {
+      this.history.goBack();
+    }
+  }
+
+  _ensureHistoryBuffer () {
+    const { pathname, state } = this.history.location;
+    if (!state || state.mastodonModalKey !== this._modalHistoryKey) {
+      this.history.push(pathname, { ...state, mastodonModalKey: this._modalHistoryKey });
+    }
+  }
+
   getSiblings = () => {
     return Array(...this.node.parentElement.childNodes).filter(node => node !== this.node);
   }

app/javascript/mastodon/components/scrollable_list.js

@@ -1,5 +1,5 @@
 import React, { PureComponent } from 'react';
-import { ScrollContainer } from 'react-router-scroll-4';
+import ScrollContainer from 'mastodon/containers/scroll_container';
 import PropTypes from 'prop-types';
 import IntersectionObserverArticleContainer from '../containers/intersection_observer_article_container';
 import LoadMore from './load_more';
@@ -34,7 +34,6 @@ class ScrollableList extends PureComponent {
     onScrollToTop: PropTypes.func,
     onScroll: PropTypes.func,
     trackScroll: PropTypes.bool,
-    shouldUpdateScroll: PropTypes.func,
     isLoading: PropTypes.bool,
     showLoading: PropTypes.bool,
     hasMore: PropTypes.bool,
@@ -290,7 +289,7 @@ class ScrollableList extends PureComponent {
   }
 
   render () {
-    const { children, scrollKey, trackScroll, shouldUpdateScroll, showLoading, isLoading, hasMore, numPending, prepend, alwaysPrepend, append, emptyMessage, onLoadMore } = this.props;
+    const { children, scrollKey, trackScroll, showLoading, isLoading, hasMore, numPending, prepend, alwaysPrepend, append, emptyMessage, onLoadMore } = this.props;
     const { fullscreen } = this.state;
     const childrenCount = React.Children.count(children);
 
@@ -356,7 +355,7 @@ class ScrollableList extends PureComponent {
 
     if (trackScroll) {
       return (
-        <ScrollContainer scrollKey={scrollKey} shouldUpdateScroll={shouldUpdateScroll}>
+        <ScrollContainer scrollKey={scrollKey}>
           {scrollableArea}
         </ScrollContainer>
       );

app/javascript/mastodon/components/status.js

@@ -309,8 +309,8 @@ class Status extends ImmutablePureComponent {
       return (
         <HotKeys handlers={handlers}>
           <div ref={this.handleRef} className={classNames('status__wrapper', { focusable: !this.props.muted })} tabIndex='0'>
-            {status.getIn(['account', 'display_name']) || status.getIn(['account', 'username'])}
+            <span>{status.getIn(['account', 'display_name']) || status.getIn(['account', 'username'])}</span>
-            {status.get('content')}
+            <span>{status.get('content')}</span>
           </div>
         </HotKeys>
       );

app/javascript/mastodon/components/status_list.js

@@ -18,7 +18,6 @@ export default class StatusList extends ImmutablePureComponent {
     onScrollToTop: PropTypes.func,
     onScroll: PropTypes.func,
     trackScroll: PropTypes.bool,
-    shouldUpdateScroll: PropTypes.func,
     isLoading: PropTypes.bool,
     isPartial: PropTypes.bool,
     hasMore: PropTypes.bool,
@@ -77,7 +76,7 @@ export default class StatusList extends ImmutablePureComponent {
   }
 
   render () {
-    const { statusIds, featuredStatusIds, shouldUpdateScroll, onLoadMore, timelineId, ...other }  = this.props;
+    const { statusIds, featuredStatusIds, onLoadMore, timelineId, ...other }  = this.props;
     const { isLoading, isPartial } = other;
 
     if (isPartial) {
@@ -120,7 +119,7 @@ export default class StatusList extends ImmutablePureComponent {
     }
 
     return (
-      <ScrollableList {...other} showLoading={isLoading && statusIds.size === 0} onLoadMore={onLoadMore && this.handleLoadOlder} shouldUpdateScroll={shouldUpdateScroll} ref={this.setRef}>
+      <ScrollableList {...other} showLoading={isLoading && statusIds.size === 0} onLoadMore={onLoadMore && this.handleLoadOlder} ref={this.setRef}>
         {scrollableContent}
       </ScrollableList>
     );

app/javascript/mastodon/containers/mastodon.js

@@ -10,8 +10,6 @@ import { hydrateStore } from '../actions/store';
 import { connectUserStream } from '../actions/streaming';
 import { IntlProvider, addLocaleData } from 'react-intl';
 import { getLocale } from '../locales';
-import { previewState as previewMediaState } from 'mastodon/features/ui/components/media_modal';
-import { previewState as previewVideoState } from 'mastodon/features/ui/components/video_modal';
 import initialState from '../initial_state';
 import ErrorBoundary from '../components/error_boundary';
 
@@ -41,8 +39,8 @@ export default class Mastodon extends React.PureComponent {
     }
   }
 
-  shouldUpdateScroll (_, { location }) {
+  shouldUpdateScroll (prevRouterProps, { location }) {
-    return location.state !== previewMediaState && location.state !== previewVideoState;
+    return !(location.state?.mastodonModalKey && location.state?.mastodonModalKey !== prevRouterProps?.location?.state?.mastodonModalKey);
   }
 
   render () {

app/javascript/mastodon/containers/scroll_container.js

@@ -0,0 +1,18 @@
+import { ScrollContainer as OriginalScrollContainer } from 'react-router-scroll-4';
+
+// ScrollContainer is used to automatically scroll to the top when pushing a
+// new history state and remembering the scroll position when going back.
+// There are a few things we need to do differently, though.
+const defaultShouldUpdateScroll = (prevRouterProps, { location }) => {
+  // If the change is caused by opening a modal, do not scroll to top
+  return !(location.state?.mastodonModalKey && location.state?.mastodonModalKey !== prevRouterProps?.location?.state?.mastodonModalKey);
+};
+
+export default
+class ScrollContainer extends OriginalScrollContainer {
+
+  static defaultProps = {
+    shouldUpdateScroll: defaultShouldUpdateScroll,
+  };
+
+}

app/javascript/mastodon/features/account_gallery/index.js

@@ -11,7 +11,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import { getAccountGallery } from 'mastodon/selectors';
 import MediaItem from './components/media_item';
 import HeaderContainer from '../account_timeline/containers/header_container';
-import { ScrollContainer } from 'react-router-scroll-4';
+import ScrollContainer from 'mastodon/containers/scroll_container';
 import LoadMore from 'mastodon/components/load_more';
 import MissingIndicator from 'mastodon/components/missing_indicator';
 import { openModal } from 'mastodon/actions/modal';
@@ -29,7 +29,6 @@ const mapStateToProps = (state, props) => ({
 class LoadMoreMedia extends ImmutablePureComponent {
 
   static propTypes = {
-    shouldUpdateScroll: PropTypes.func,
     maxId: PropTypes.string,
     onLoadMore: PropTypes.func.isRequired,
   };
@@ -127,7 +126,7 @@ class AccountGallery extends ImmutablePureComponent {
   }
 
   render () {
-    const { attachments, shouldUpdateScroll, isLoading, hasMore, isAccount, multiColumn, blockedBy, suspended } = this.props;
+    const { attachments, isLoading, hasMore, isAccount, multiColumn, blockedBy, suspended } = this.props;
     const { width } = this.state;
 
     if (!isAccount) {
@@ -164,7 +163,7 @@ class AccountGallery extends ImmutablePureComponent {
       <Column>
         <ColumnBackButton multiColumn={multiColumn} />
 
-        <ScrollContainer scrollKey='account_gallery' shouldUpdateScroll={shouldUpdateScroll}>
+        <ScrollContainer scrollKey='account_gallery'>
           <div className='scrollable scrollable--flex' onScroll={this.handleScroll}>
             <HeaderContainer accountId={this.props.params.accountId} />
 

app/javascript/mastodon/features/account_timeline/index.js

@@ -50,7 +50,6 @@ class AccountTimeline extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     statusIds: ImmutablePropTypes.list,
     featuredStatusIds: ImmutablePropTypes.list,
     isLoading: PropTypes.bool,
@@ -115,7 +114,7 @@ class AccountTimeline extends ImmutablePureComponent {
   }
 
   render () {
-    const { shouldUpdateScroll, statusIds, featuredStatusIds, isLoading, hasMore, blockedBy, suspended, isAccount, multiColumn, remote, remoteUrl } = this.props;
+    const { statusIds, featuredStatusIds, isLoading, hasMore, blockedBy, suspended, isAccount, multiColumn, remote, remoteUrl } = this.props;
 
     if (!isAccount) {
       return (
@@ -162,7 +161,6 @@ class AccountTimeline extends ImmutablePureComponent {
           isLoading={isLoading}
           hasMore={hasMore}
           onLoadMore={this.handleLoadMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
           timelineId='account'

app/javascript/mastodon/features/blocks/index.js

@@ -29,7 +29,6 @@ class Blocks extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     accountIds: ImmutablePropTypes.list,
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
@@ -46,7 +45,7 @@ class Blocks extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { intl, accountIds, shouldUpdateScroll, hasMore, multiColumn, isLoading } = this.props;
+    const { intl, accountIds, hasMore, multiColumn, isLoading } = this.props;
 
     if (!accountIds) {
       return (
@@ -66,7 +65,6 @@ class Blocks extends ImmutablePureComponent {
           onLoadMore={this.handleLoadMore}
           hasMore={hasMore}
           isLoading={isLoading}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         >

app/javascript/mastodon/features/bookmarked_statuses/index.js

@@ -27,7 +27,6 @@ class Bookmarks extends ImmutablePureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     statusIds: ImmutablePropTypes.list.isRequired,
     intl: PropTypes.object.isRequired,
     columnId: PropTypes.string,
@@ -68,7 +67,7 @@ class Bookmarks extends ImmutablePureComponent {
   }, 300, { leading: true })
 
   render () {
-    const { intl, shouldUpdateScroll, statusIds, columnId, multiColumn, hasMore, isLoading } = this.props;
+    const { intl, statusIds, columnId, multiColumn, hasMore, isLoading } = this.props;
     const pinned = !!columnId;
 
     const emptyMessage = <FormattedMessage id='empty_column.bookmarked_statuses' defaultMessage="You don't have any bookmarked toots yet. When you bookmark one, it will show up here." />;
@@ -93,7 +92,6 @@ class Bookmarks extends ImmutablePureComponent {
           hasMore={hasMore}
           isLoading={isLoading}
           onLoadMore={this.handleLoadMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         />

app/javascript/mastodon/features/community_timeline/index.js

@@ -41,7 +41,6 @@ class CommunityTimeline extends React.PureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     columnId: PropTypes.string,
     intl: PropTypes.object.isRequired,
     hasUnread: PropTypes.bool,
@@ -103,7 +102,7 @@ class CommunityTimeline extends React.PureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, hasUnread, columnId, multiColumn, onlyMedia } = this.props;
+    const { intl, hasUnread, columnId, multiColumn, onlyMedia } = this.props;
     const pinned = !!columnId;
 
     return (
@@ -127,7 +126,6 @@ class CommunityTimeline extends React.PureComponent {
           timelineId={`community${onlyMedia ? ':media' : ''}`}
           onLoadMore={this.handleLoadMore}
           emptyMessage={<FormattedMessage id='empty_column.community' defaultMessage='The local timeline is empty. Write something publicly to get the ball rolling!' />}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/compose/containers/navigation_container.js

@@ -21,6 +21,7 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     dispatch(openModal('CONFIRM', {
       message: intl.formatMessage(messages.logoutMessage),
       confirm: intl.formatMessage(messages.logoutConfirm),
+      closeWhenConfirm: false,
       onConfirm: () => logOut(),
     }));
   },

app/javascript/mastodon/features/compose/index.js

@@ -74,6 +74,7 @@ class Compose extends React.PureComponent {
     dispatch(openModal('CONFIRM', {
       message: intl.formatMessage(messages.logoutMessage),
       confirm: intl.formatMessage(messages.logoutConfirm),
+      closeWhenConfirm: false,
       onConfirm: () => logOut(),
     }));
 

app/javascript/mastodon/features/direct_timeline/components/conversations_list.js

@@ -14,7 +14,6 @@ export default class ConversationsList extends ImmutablePureComponent {
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
     onLoadMore: PropTypes.func,
-    shouldUpdateScroll: PropTypes.func,
   };
 
   getCurrentIndex = id => this.props.conversations.findIndex(x => x.get('id') === id)

app/javascript/mastodon/features/direct_timeline/index.js

@@ -19,7 +19,6 @@ class DirectTimeline extends React.PureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     columnId: PropTypes.string,
     intl: PropTypes.object.isRequired,
     hasUnread: PropTypes.bool,
@@ -71,7 +70,7 @@ class DirectTimeline extends React.PureComponent {
   }
 
   render () {
-    const { intl, hasUnread, columnId, multiColumn, shouldUpdateScroll } = this.props;
+    const { intl, hasUnread, columnId, multiColumn } = this.props;
     const pinned = !!columnId;
 
     return (
@@ -93,7 +92,6 @@ class DirectTimeline extends React.PureComponent {
           timelineId='direct'
           onLoadMore={this.handleLoadMore}
           emptyMessage={<FormattedMessage id='empty_column.direct' defaultMessage="You don't have any direct messages yet. When you send or receive one, it will show up here." />}
-          shouldUpdateScroll={shouldUpdateScroll}
         />
       </Column>
     );

app/javascript/mastodon/features/directory/index.js

@@ -12,7 +12,7 @@ import AccountCard from './components/account_card';
 import RadioButton from 'mastodon/components/radio_button';
 import classNames from 'classnames';
 import LoadMore from 'mastodon/components/load_more';
-import { ScrollContainer } from 'react-router-scroll-4';
+import ScrollContainer from 'mastodon/containers/scroll_container';
 
 const messages = defineMessages({
   title: { id: 'column.directory', defaultMessage: 'Browse profiles' },
@@ -40,7 +40,6 @@ class Directory extends React.PureComponent {
     isLoading: PropTypes.bool,
     accountIds: ImmutablePropTypes.list.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     columnId: PropTypes.string,
     intl: PropTypes.object.isRequired,
     multiColumn: PropTypes.bool,
@@ -125,7 +124,7 @@ class Directory extends React.PureComponent {
   }
 
   render () {
-    const { isLoading, accountIds, intl, columnId, multiColumn, domain, shouldUpdateScroll } = this.props;
+    const { isLoading, accountIds, intl, columnId, multiColumn, domain } = this.props;
     const { order, local }  = this.getParams(this.props, this.state);
     const pinned = !!columnId;
 
@@ -163,7 +162,7 @@ class Directory extends React.PureComponent {
           multiColumn={multiColumn}
         />
 
-        {multiColumn && !pinned ? <ScrollContainer scrollKey='directory' shouldUpdateScroll={shouldUpdateScroll}>{scrollableArea}</ScrollContainer> : scrollableArea}
+        {multiColumn && !pinned ? <ScrollContainer scrollKey='directory'>{scrollableArea}</ScrollContainer> : scrollableArea}
       </Column>
     );
   }

app/javascript/mastodon/features/domain_blocks/index.js

@@ -29,7 +29,6 @@ class Blocks extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     hasMore: PropTypes.bool,
     domains: ImmutablePropTypes.orderedSet,
     intl: PropTypes.object.isRequired,
@@ -45,7 +44,7 @@ class Blocks extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { intl, domains, shouldUpdateScroll, hasMore, multiColumn } = this.props;
+    const { intl, domains, hasMore, multiColumn } = this.props;
 
     if (!domains) {
       return (
@@ -64,7 +63,6 @@ class Blocks extends ImmutablePureComponent {
           scrollKey='domain_blocks'
           onLoadMore={this.handleLoadMore}
           hasMore={hasMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         >

app/javascript/mastodon/features/favourited_statuses/index.js

@@ -27,7 +27,6 @@ class Favourites extends ImmutablePureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     statusIds: ImmutablePropTypes.list.isRequired,
     intl: PropTypes.object.isRequired,
     columnId: PropTypes.string,
@@ -68,7 +67,7 @@ class Favourites extends ImmutablePureComponent {
   }, 300, { leading: true })
 
   render () {
-    const { intl, shouldUpdateScroll, statusIds, columnId, multiColumn, hasMore, isLoading } = this.props;
+    const { intl, statusIds, columnId, multiColumn, hasMore, isLoading } = this.props;
     const pinned = !!columnId;
 
     const emptyMessage = <FormattedMessage id='empty_column.favourited_statuses' defaultMessage="You don't have any favourite toots yet. When you favourite one, it will show up here." />;
@@ -93,7 +92,6 @@ class Favourites extends ImmutablePureComponent {
           hasMore={hasMore}
           isLoading={isLoading}
           onLoadMore={this.handleLoadMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         />

app/javascript/mastodon/features/favourites/index.js

@@ -27,7 +27,6 @@ class Favourites extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     accountIds: ImmutablePropTypes.list,
     multiColumn: PropTypes.bool,
     intl: PropTypes.object.isRequired,
@@ -50,7 +49,7 @@ class Favourites extends ImmutablePureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, accountIds, multiColumn } = this.props;
+    const { intl, accountIds, multiColumn } = this.props;
 
     if (!accountIds) {
       return (
@@ -74,7 +73,6 @@ class Favourites extends ImmutablePureComponent {
 
         <ScrollableList
           scrollKey='favourites'
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         >

app/javascript/mastodon/features/follow_requests/index.js

@@ -32,7 +32,6 @@ class FollowRequests extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
     accountIds: ImmutablePropTypes.list,
@@ -51,7 +50,7 @@ class FollowRequests extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { intl, shouldUpdateScroll, accountIds, hasMore, multiColumn, locked, domain, isLoading } = this.props;
+    const { intl, accountIds, hasMore, multiColumn, locked, domain, isLoading } = this.props;
 
     if (!accountIds) {
       return (
@@ -80,7 +79,6 @@ class FollowRequests extends ImmutablePureComponent {
           onLoadMore={this.handleLoadMore}
           hasMore={hasMore}
           isLoading={isLoading}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
           prepend={unlockedPrependMessage}

app/javascript/mastodon/features/followers/index.js

@@ -43,7 +43,6 @@ class Followers extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     accountIds: ImmutablePropTypes.list,
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
@@ -73,7 +72,7 @@ class Followers extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { shouldUpdateScroll, accountIds, hasMore, blockedBy, isAccount, multiColumn, isLoading, remote, remoteUrl } = this.props;
+    const { accountIds, hasMore, blockedBy, isAccount, multiColumn, isLoading, remote, remoteUrl } = this.props;
 
     if (!isAccount) {
       return (
@@ -112,7 +111,6 @@ class Followers extends ImmutablePureComponent {
           hasMore={hasMore}
           isLoading={isLoading}
           onLoadMore={this.handleLoadMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           prepend={<HeaderContainer accountId={this.props.params.accountId} hideTabs />}
           alwaysPrepend
           append={remoteMessage}

app/javascript/mastodon/features/following/index.js

@@ -43,7 +43,6 @@ class Following extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     accountIds: ImmutablePropTypes.list,
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
@@ -73,7 +72,7 @@ class Following extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { shouldUpdateScroll, accountIds, hasMore, blockedBy, isAccount, multiColumn, isLoading, remote, remoteUrl } = this.props;
+    const { accountIds, hasMore, blockedBy, isAccount, multiColumn, isLoading, remote, remoteUrl } = this.props;
 
     if (!isAccount) {
       return (
@@ -112,7 +111,6 @@ class Following extends ImmutablePureComponent {
           hasMore={hasMore}
           isLoading={isLoading}
           onLoadMore={this.handleLoadMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           prepend={<HeaderContainer accountId={this.props.params.accountId} hideTabs />}
           alwaysPrepend
           append={remoteMessage}

app/javascript/mastodon/features/hashtag_timeline/index.js

@@ -24,7 +24,6 @@ class HashtagTimeline extends React.PureComponent {
     params: PropTypes.object.isRequired,
     columnId: PropTypes.string,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     hasUnread: PropTypes.bool,
     multiColumn: PropTypes.bool,
   };
@@ -130,7 +129,7 @@ class HashtagTimeline extends React.PureComponent {
   }
 
   render () {
-    const { shouldUpdateScroll, hasUnread, columnId, multiColumn } = this.props;
+    const { hasUnread, columnId, multiColumn } = this.props;
     const { id, local } = this.props.params;
     const pinned = !!columnId;
 
@@ -156,7 +155,6 @@ class HashtagTimeline extends React.PureComponent {
           timelineId={`hashtag:${id}${local ? ':local' : ''}`}
           onLoadMore={this.handleLoadMore}
           emptyMessage={<FormattedMessage id='empty_column.hashtag' defaultMessage='There is nothing in this hashtag yet.' />}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/home_timeline/index.js

@@ -34,7 +34,6 @@ class HomeTimeline extends React.PureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     intl: PropTypes.object.isRequired,
     hasUnread: PropTypes.bool,
     isPartial: PropTypes.bool,
@@ -112,7 +111,7 @@ class HomeTimeline extends React.PureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, hasUnread, columnId, multiColumn, hasAnnouncements, unreadAnnouncements, showAnnouncements } = this.props;
+    const { intl, hasUnread, columnId, multiColumn, hasAnnouncements, unreadAnnouncements, showAnnouncements } = this.props;
     const pinned = !!columnId;
 
     let announcementsButton = null;
@@ -154,7 +153,6 @@ class HomeTimeline extends React.PureComponent {
           onLoadMore={this.handleLoadMore}
           timelineId='home'
           emptyMessage={<FormattedMessage id='empty_column.home' defaultMessage='Your home timeline is empty! Follow more people to fill it up. {suggestions}' values={{ suggestions: <Link to='/start'><FormattedMessage id='empty_column.home.suggestions' defaultMessage='See some suggestions' /></Link> }} />}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/list_timeline/index.js

@@ -41,7 +41,6 @@ class ListTimeline extends React.PureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     columnId: PropTypes.string,
     hasUnread: PropTypes.bool,
     multiColumn: PropTypes.bool,
@@ -142,7 +141,7 @@ class ListTimeline extends React.PureComponent {
   }
 
   render () {
-    const { shouldUpdateScroll, hasUnread, columnId, multiColumn, list, intl } = this.props;
+    const { hasUnread, columnId, multiColumn, list, intl } = this.props;
     const { id } = this.props.params;
     const pinned = !!columnId;
     const title  = list ? list.get('title') : id;
@@ -207,7 +206,6 @@ class ListTimeline extends React.PureComponent {
           timelineId={`list:${id}`}
           onLoadMore={this.handleLoadMore}
           emptyMessage={<FormattedMessage id='empty_column.list' defaultMessage='There is nothing in this list yet. When members of this list post new statuses, they will appear here.' />}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/lists/index.js

@@ -48,7 +48,7 @@ class Lists extends ImmutablePureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, lists, multiColumn } = this.props;
+    const { intl, lists, multiColumn } = this.props;
 
     if (!lists) {
       return (
@@ -68,7 +68,6 @@ class Lists extends ImmutablePureComponent {
 
         <ScrollableList
           scrollKey='lists'
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           prepend={<ColumnSubheading text={intl.formatMessage(messages.subheading)} />}
           bindToDocument={!multiColumn}

app/javascript/mastodon/features/mutes/index.js

@@ -29,7 +29,6 @@ class Mutes extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     hasMore: PropTypes.bool,
     isLoading: PropTypes.bool,
     accountIds: ImmutablePropTypes.list,
@@ -46,7 +45,7 @@ class Mutes extends ImmutablePureComponent {
   }, 300, { leading: true });
 
   render () {
-    const { intl, shouldUpdateScroll, hasMore, accountIds, multiColumn, isLoading } = this.props;
+    const { intl, hasMore, accountIds, multiColumn, isLoading } = this.props;
 
     if (!accountIds) {
       return (
@@ -66,7 +65,6 @@ class Mutes extends ImmutablePureComponent {
           onLoadMore={this.handleLoadMore}
           hasMore={hasMore}
           isLoading={isLoading}
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         >

app/javascript/mastodon/features/notifications/index.js

@@ -74,7 +74,6 @@ class Notifications extends React.PureComponent {
     notifications: ImmutablePropTypes.list.isRequired,
     showFilterBar: PropTypes.bool.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     intl: PropTypes.object.isRequired,
     isLoading: PropTypes.bool,
     isUnread: PropTypes.bool,
@@ -176,7 +175,7 @@ class Notifications extends React.PureComponent {
   };
 
   render () {
-    const { intl, notifications, shouldUpdateScroll, isLoading, isUnread, columnId, multiColumn, hasMore, numPending, showFilterBar, lastReadId, canMarkAsRead, needsNotificationPermission } = this.props;
+    const { intl, notifications, isLoading, isUnread, columnId, multiColumn, hasMore, numPending, showFilterBar, lastReadId, canMarkAsRead, needsNotificationPermission } = this.props;
     const pinned = !!columnId;
     const emptyMessage = <FormattedMessage id='empty_column.notifications' defaultMessage="You don't have any notifications yet. When other people interact with you, you will see it here." />;
 
@@ -227,7 +226,6 @@ class Notifications extends React.PureComponent {
         onLoadPending={this.handleLoadPending}
         onScrollToTop={this.handleScrollToTop}
         onScroll={this.handleScroll}
-        shouldUpdateScroll={shouldUpdateScroll}
         bindToDocument={!multiColumn}
       >
         {scrollableContent}

app/javascript/mastodon/features/picture_in_picture/components/footer.js

@@ -114,7 +114,11 @@ class Footer extends ImmutablePureComponent {
       return;
     }
 
-    const { status } = this.props;
+    const { status, onClose } = this.props;
+
+    if (onClose) {
+      onClose();
+    }
 
     router.history.push(`/statuses/${status.get('id')}`);
   }

app/javascript/mastodon/features/pinned_statuses/index.js

@@ -24,7 +24,6 @@ class PinnedStatuses extends ImmutablePureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     statusIds: ImmutablePropTypes.list.isRequired,
     intl: PropTypes.object.isRequired,
     hasMore: PropTypes.bool.isRequired,
@@ -44,7 +43,7 @@ class PinnedStatuses extends ImmutablePureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, statusIds, hasMore, multiColumn } = this.props;
+    const { intl, statusIds, hasMore, multiColumn } = this.props;
 
     return (
       <Column bindToDocument={!multiColumn} icon='thumb-tack' heading={intl.formatMessage(messages.heading)} ref={this.setRef}>
@@ -53,7 +52,6 @@ class PinnedStatuses extends ImmutablePureComponent {
           statusIds={statusIds}
           scrollKey='pinned_statuses'
           hasMore={hasMore}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/public_timeline/index.js

@@ -43,7 +43,6 @@ class PublicTimeline extends React.PureComponent {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     intl: PropTypes.object.isRequired,
     columnId: PropTypes.string,
     multiColumn: PropTypes.bool,
@@ -106,7 +105,7 @@ class PublicTimeline extends React.PureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, columnId, hasUnread, multiColumn, onlyMedia, onlyRemote } = this.props;
+    const { intl, columnId, hasUnread, multiColumn, onlyMedia, onlyRemote } = this.props;
     const pinned = !!columnId;
 
     return (
@@ -130,7 +129,6 @@ class PublicTimeline extends React.PureComponent {
           trackScroll={!pinned}
           scrollKey={`public_timeline-${columnId}`}
           emptyMessage={<FormattedMessage id='empty_column.public' defaultMessage='There is nothing here! Write something publicly, or manually follow users from other servers to fill it up' />}
-          shouldUpdateScroll={shouldUpdateScroll}
           bindToDocument={!multiColumn}
         />
       </Column>

app/javascript/mastodon/features/reblogs/index.js

@@ -27,7 +27,6 @@ class Reblogs extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    shouldUpdateScroll: PropTypes.func,
     accountIds: ImmutablePropTypes.list,
     multiColumn: PropTypes.bool,
     intl: PropTypes.object.isRequired,
@@ -50,7 +49,7 @@ class Reblogs extends ImmutablePureComponent {
   }
 
   render () {
-    const { intl, shouldUpdateScroll, accountIds, multiColumn } = this.props;
+    const { intl, accountIds, multiColumn } = this.props;
 
     if (!accountIds) {
       return (
@@ -74,7 +73,6 @@ class Reblogs extends ImmutablePureComponent {
 
         <ScrollableList
           scrollKey='reblogs'
-          shouldUpdateScroll={shouldUpdateScroll}
           emptyMessage={emptyMessage}
           bindToDocument={!multiColumn}
         >

app/javascript/mastodon/features/status/index.js

@@ -45,7 +45,7 @@ import { initBlockModal } from '../../actions/blocks';
 import { initBoostModal } from '../../actions/boosts';
 import { initReport } from '../../actions/reports';
 import { makeGetStatus, makeGetPictureInPicture } from '../../selectors';
-import { ScrollContainer } from 'react-router-scroll-4';
+import ScrollContainer from 'mastodon/containers/scroll_container';
 import ColumnBackButton from '../../components/column_back_button';
 import ColumnHeader from '../../components/column_header';
 import StatusContainer from '../../containers/status_container';
@@ -83,7 +83,7 @@ const makeMapStateToProps = () => {
     ancestorsIds = ancestorsIds.withMutations(mutable => {
       let id = statusId;
 
-      while (id) {
+      while (id && !mutable.includes(id)) {
         mutable.unshift(id);
         id = inReplyTos.get(id);
       }
@@ -101,7 +101,7 @@ const makeMapStateToProps = () => {
     const ids = [statusId];
 
     while (ids.length > 0) {
-      let id        = ids.shift();
+      let id        = ids.pop();
       const replies = contextReplies.get(id);
 
       if (statusId !== id) {
@@ -110,7 +110,7 @@ const makeMapStateToProps = () => {
 
       if (replies) {
         replies.reverse().forEach(reply => {
-          ids.unshift(reply);
+          if (!ids.includes(reply) && !descendantsIds.includes(reply) && statusId !== reply) ids.push(reply);
         });
       }
     }
@@ -498,7 +498,7 @@ class Status extends ImmutablePureComponent {
 
   render () {
     let ancestors, descendants;
-    const { shouldUpdateScroll, status, ancestorsIds, descendantsIds, intl, domain, multiColumn, pictureInPicture } = this.props;
+    const { status, ancestorsIds, descendantsIds, intl, domain, multiColumn, pictureInPicture } = this.props;
     const { fullscreen } = this.state;
 
     if (status === null) {
@@ -541,7 +541,7 @@ class Status extends ImmutablePureComponent {
           )}
         />
 
-        <ScrollContainer scrollKey='thread' shouldUpdateScroll={shouldUpdateScroll}>
+        <ScrollContainer scrollKey='thread'>
           <div className={classNames('scrollable', { fullscreen })} ref={this.setRef}>
             {ancestors}
 

app/javascript/mastodon/features/ui/components/audio_modal.js

@@ -4,7 +4,6 @@ import PropTypes from 'prop-types';
 import Audio from 'mastodon/features/audio';
 import { connect } from 'react-redux';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import { previewState } from './video_modal';
 import Footer from 'mastodon/features/picture_in_picture/components/footer';
 
 const mapStateToProps = (state, { statusId }) => ({
@@ -25,32 +24,6 @@ class AudioModal extends ImmutablePureComponent {
     onChangeBackgroundColor: PropTypes.func.isRequired,
   };
 
-  static contextTypes = {
-    router: PropTypes.object,
-  };
-
-  componentDidMount () {
-    if (this.context.router) {
-      const history = this.context.router.history;
-
-      history.push(history.location.pathname, previewState);
-
-      this.unlistenHistory = history.listen(() => {
-        this.props.onClose();
-      });
-    }
-  }
-
-  componentWillUnmount () {
-    if (this.context.router) {
-      this.unlistenHistory();
-
-      if (this.context.router.history.location.state === previewState) {
-        this.context.router.history.goBack();
-      }
-    }
-  }
-
   render () {
     const { media, accountStaticAvatar, statusId, onClose } = this.props;
     const options = this.props.options || {};

app/javascript/mastodon/features/ui/components/confirmation_modal.js

@@ -13,15 +13,22 @@ class ConfirmationModal extends React.PureComponent {
     onConfirm: PropTypes.func.isRequired,
     secondary: PropTypes.string,
     onSecondary: PropTypes.func,
+    closeWhenConfirm: PropTypes.bool,
     intl: PropTypes.object.isRequired,
   };
 
+  static defaultProps = {
+    closeWhenConfirm: true,
+  };
+
   componentDidMount() {
     this.button.focus();
   }
 
   handleClick = () => {
-    this.props.onClose();
+    if (this.props.closeWhenConfirm) {
+      this.props.onClose();
+    }
     this.props.onConfirm();
   }
 

app/javascript/mastodon/features/ui/components/link_footer.js

@@ -17,6 +17,7 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     dispatch(openModal('CONFIRM', {
       message: intl.formatMessage(messages.logoutMessage),
       confirm: intl.formatMessage(messages.logoutConfirm),
+      closeWhenConfirm: false,
       onConfirm: () => logOut(),
     }));
   },

app/javascript/mastodon/features/ui/components/media_modal.js

@@ -20,8 +20,6 @@ const messages = defineMessages({
   next: { id: 'lightbox.next', defaultMessage: 'Next' },
 });
 
-export const previewState = 'previewMediaModal';
-
 export default @injectIntl
 class MediaModal extends ImmutablePureComponent {
 
@@ -37,10 +35,6 @@ class MediaModal extends ImmutablePureComponent {
     volume: PropTypes.number,
   };
 
-  static contextTypes = {
-    router: PropTypes.object,
-  };
-
   state = {
     index: null,
     navigationHidden: false,
@@ -98,16 +92,6 @@ class MediaModal extends ImmutablePureComponent {
   componentDidMount () {
     window.addEventListener('keydown', this.handleKeyDown, false);
 
-    if (this.context.router) {
-      const history = this.context.router.history;
-
-      history.push(history.location.pathname, previewState);
-
-      this.unlistenHistory = history.listen(() => {
-        this.props.onClose();
-      });
-    }
-
     this._sendBackgroundColor();
   }
 
@@ -131,14 +115,6 @@ class MediaModal extends ImmutablePureComponent {
   componentWillUnmount () {
     window.removeEventListener('keydown', this.handleKeyDown);
 
-    if (this.context.router) {
-      this.unlistenHistory();
-
-      if (this.context.router.history.location.state === previewState) {
-        this.context.router.history.goBack();
-      }
-    }
-
     this.props.onChangeBackgroundColor(null);
   }
 

app/javascript/mastodon/features/ui/components/video_modal.js

@@ -6,8 +6,6 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import Footer from 'mastodon/features/picture_in_picture/components/footer';
 import { getAverageFromBlurhash } from 'mastodon/blurhash';
 
-export const previewState = 'previewVideoModal';
-
 export default class VideoModal extends ImmutablePureComponent {
 
   static propTypes = {
@@ -22,19 +20,9 @@ export default class VideoModal extends ImmutablePureComponent {
     onChangeBackgroundColor: PropTypes.func.isRequired,
   };
 
-  static contextTypes = {
-    router: PropTypes.object,
-  };
-
   componentDidMount () {
-    const { router } = this.context;
     const { media, onChangeBackgroundColor, onClose } = this.props;
 
-    if (router) {
-      router.history.push(router.history.location.pathname, previewState);
-      this.unlistenHistory = router.history.listen(() => onClose());
-    }
-
     const backgroundColor = getAverageFromBlurhash(media.get('blurhash'));
 
     if (backgroundColor) {
@@ -42,18 +30,6 @@ export default class VideoModal extends ImmutablePureComponent {
     }
   }
 
-  componentWillUnmount () {
-    const { router } = this.context;
-
-    if (router) {
-      this.unlistenHistory();
-
-      if (router.history.location.state === previewState) {
-        router.history.goBack();
-      }
-    }
-  }
-
   render () {
     const { media, statusId, onClose } = this.props;
     const options = this.props.options || {};

app/javascript/mastodon/features/ui/containers/modal_container.js

@@ -3,8 +3,8 @@ import { closeModal } from '../../../actions/modal';
 import ModalRoot from '../components/modal_root';
 
 const mapStateToProps = state => ({
-  type: state.get('modal').modalType,
+  type: state.getIn(['modal', 0, 'modalType'], null),
-  props: state.get('modal').modalProps,
+  props: state.getIn(['modal', 0, 'modalProps'], {}),
 });
 
 const mapDispatchToProps = dispatch => ({

app/javascript/mastodon/features/ui/index.js

@@ -54,8 +54,6 @@ import {
   FollowRecommendations,
 } from './util/async-components';
 import { me } from '../../initial_state';
-import { previewState as previewMediaState } from './components/media_modal';
-import { previewState as previewVideoState } from './components/video_modal';
 import { closeOnboarding, INTRODUCTION_VERSION } from 'mastodon/actions/onboarding';
 
 // Dummy import, to make sure that <Status /> ends up in the application bundle.
@@ -138,10 +136,6 @@ class SwitchingColumnsArea extends React.PureComponent {
     }
   }
 
-  shouldUpdateScroll (_, { location }) {
-    return location.state !== previewMediaState && location.state !== previewVideoState;
-  }
-
   setRef = c => {
     if (c) {
       this.node = c.getWrappedInstance();
@@ -158,38 +152,38 @@ class SwitchingColumnsArea extends React.PureComponent {
           {redirect}
           <WrappedRoute path='/getting-started' component={GettingStarted} content={children} />
           <WrappedRoute path='/keyboard-shortcuts' component={KeyboardShortcuts} content={children} />
-          <WrappedRoute path='/timelines/home' component={HomeTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/home' component={HomeTimeline} content={children} />
-          <WrappedRoute path='/timelines/public' exact component={PublicTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/public' exact component={PublicTimeline} content={children} />
-          <WrappedRoute path='/timelines/public/local' exact component={CommunityTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/public/local' exact component={CommunityTimeline} content={children} />
-          <WrappedRoute path='/timelines/direct' component={DirectTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/direct' component={DirectTimeline} content={children} />
-          <WrappedRoute path='/timelines/tag/:id' component={HashtagTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/tag/:id' component={HashtagTimeline} content={children} />
-          <WrappedRoute path='/timelines/list/:id' component={ListTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/timelines/list/:id' component={ListTimeline} content={children} />
 
-          <WrappedRoute path='/notifications' component={Notifications} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/notifications' component={Notifications} content={children} />
-          <WrappedRoute path='/favourites' component={FavouritedStatuses} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/favourites' component={FavouritedStatuses} content={children} />
           <WrappedRoute path='/bookmarks' component={BookmarkedStatuses} content={children} />
-          <WrappedRoute path='/pinned' component={PinnedStatuses} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/pinned' component={PinnedStatuses} content={children} />
 
           <WrappedRoute path='/start' component={FollowRecommendations} content={children} />
           <WrappedRoute path='/search' component={Search} content={children} />
-          <WrappedRoute path='/directory' component={Directory} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/directory' component={Directory} content={children} />
 
           <WrappedRoute path='/statuses/new' component={Compose} content={children} />
-          <WrappedRoute path='/statuses/:statusId' exact component={Status} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/statuses/:statusId' exact component={Status} content={children} />
-          <WrappedRoute path='/statuses/:statusId/reblogs' component={Reblogs} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/statuses/:statusId/reblogs' component={Reblogs} content={children} />
-          <WrappedRoute path='/statuses/:statusId/favourites' component={Favourites} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/statuses/:statusId/favourites' component={Favourites} content={children} />
 
-          <WrappedRoute path='/accounts/:accountId' exact component={AccountTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/accounts/:accountId' exact component={AccountTimeline} content={children} />
-          <WrappedRoute path='/accounts/:accountId/with_replies' component={AccountTimeline} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll, withReplies: true }} />
+          <WrappedRoute path='/accounts/:accountId/with_replies' component={AccountTimeline} content={children} componentParams={{ withReplies: true }} />
-          <WrappedRoute path='/accounts/:accountId/followers' component={Followers} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/accounts/:accountId/followers' component={Followers} content={children} />
-          <WrappedRoute path='/accounts/:accountId/following' component={Following} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/accounts/:accountId/following' component={Following} content={children} />
-          <WrappedRoute path='/accounts/:accountId/media' component={AccountGallery} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/accounts/:accountId/media' component={AccountGallery} content={children} />
 
-          <WrappedRoute path='/follow_requests' component={FollowRequests} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/follow_requests' component={FollowRequests} content={children} />
-          <WrappedRoute path='/blocks' component={Blocks} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/blocks' component={Blocks} content={children} />
-          <WrappedRoute path='/domain_blocks' component={DomainBlocks} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/domain_blocks' component={DomainBlocks} content={children} />
-          <WrappedRoute path='/mutes' component={Mutes} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/mutes' component={Mutes} content={children} />
-          <WrappedRoute path='/lists' component={Lists} content={children} componentParams={{ shouldUpdateScroll: this.shouldUpdateScroll }} />
+          <WrappedRoute path='/lists' component={Lists} content={children} />
 
           <WrappedRoute component={GenericNotFound} content={children} />
         </WrappedSwitch>

app/javascript/mastodon/reducers/modal.js

@@ -1,19 +1,15 @@
 import { MODAL_OPEN, MODAL_CLOSE } from '../actions/modal';
 import { TIMELINE_DELETE } from '../actions/timelines';
+import { Stack as ImmutableStack, Map as ImmutableMap } from 'immutable';
 
-const initialState = {
+export default function modal(state = ImmutableStack(), action) {
-  modalType: null,
-  modalProps: {},
-};
-
-export default function modal(state = initialState, action) {
   switch(action.type) {
   case MODAL_OPEN:
-    return { modalType: action.modalType, modalProps: action.modalProps };
+        return state.unshift(ImmutableMap({ modalType: action.modalType, modalProps: action.modalProps }));
   case MODAL_CLOSE:
-    return (action.modalType === undefined || action.modalType === state.modalType) ? initialState : state;
+    return (action.modalType === undefined || action.modalType === state.getIn([0, 'modalType'])) ? state.shift() : state;
   case TIMELINE_DELETE:
-    return (state.modalProps.statusId === action.id) ? initialState : state;
+        return state.filterNot((modal) => modal.get('modalProps').statusId === action.id);
   default:
     return state;
   }

app/javascript/mastodon/reducers/picture_in_picture.js

@@ -1,4 +1,5 @@
 import { PICTURE_IN_PICTURE_DEPLOY, PICTURE_IN_PICTURE_REMOVE } from 'mastodon/actions/picture_in_picture';
+import { TIMELINE_DELETE } from '../actions/timelines';
 
 const initialState = {
   statusId: null,
@@ -16,6 +17,8 @@ export default function pictureInPicture(state = initialState, action) {
     return { statusId: action.statusId, accountId: action.accountId, type: action.playerType, ...action.props };
   case PICTURE_IN_PICTURE_REMOVE:
     return { ...initialState };
+  case TIMELINE_DELETE:
+    return (state.statusId === action.id) ? { ...initialState } : state;
   default:
     return state;
   }

app/javascript/styles/mastodon/admin.scss

@@ -829,6 +829,7 @@ a.name-tag,
     padding: 0 5px;
     margin-bottom: 10px;
     flex: 1 0 50%;
+    max-width: 100%;
   }
 
   .account__header__fields,

app/javascript/styles/mastodon/components.scss

@@ -7284,6 +7284,7 @@ noscript {
     &__account {
       display: flex;
       text-decoration: none;
+      overflow: hidden;
     }
 
     .account__avatar {

app/lib/activitypub/activity/create.rb

@@ -446,10 +446,14 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
   end
 
   def supported_blurhash?(blurhash)
-    components = blurhash.blank? ? nil : Blurhash.components(blurhash)
+    components = blurhash.blank? || !blurhash_valid_chars?(blurhash) ? nil : Blurhash.components(blurhash)
     components.present? && components.none? { |comp| comp > 5 }
   end
 
+  def blurhash_valid_chars?(blurhash)
+    /^[\w#$%*+-.:;=?@\[\]^{|}~]+$/.match?(blurhash)
+  end
+
   def skip_download?
     return @skip_download if defined?(@skip_download)
 

app/lib/activitypub/tag_manager.rb

@@ -64,6 +64,10 @@ class ActivityPub::TagManager
     account_status_replies_url(target.account, target, page_params)
   end
 
+  def followers_uri_for(target)
+    target.local? ? account_followers_url(target) : target.followers_url.presence
+  end
+
   # Primary audience of a status
   # Public statuses go out to primarily the public collection
   # Unlisted and private statuses go out primarily to the followers collection
@@ -80,17 +84,17 @@ class ActivityPub::TagManager
         account_ids = status.active_mentions.pluck(:account_id)
         to = status.account.followers.where(id: account_ids).each_with_object([]) do |account, result|
           result << uri_for(account)
-          result << account_followers_url(account) if account.group?
+          result << followers_uri_for(account) if account.group?
         end
         to.concat(FollowRequest.where(target_account_id: status.account_id, account_id: account_ids).each_with_object([]) do |request, result|
           result << uri_for(request.account)
-          result << account_followers_url(request.account) if request.account.group?
+          result << followers_uri_for(request.account) if request.account.group?
-        end)
+        end).compact
       else
         status.active_mentions.each_with_object([]) do |mention, result|
           result << uri_for(mention.account)
-          result << account_followers_url(mention.account) if mention.account.group?
+          result << followers_uri_for(mention.account) if mention.account.group?
-        end
+        end.compact
       end
     end
   end
@@ -118,17 +122,17 @@ class ActivityPub::TagManager
         account_ids = status.active_mentions.pluck(:account_id)
         cc.concat(status.account.followers.where(id: account_ids).each_with_object([]) do |account, result|
           result << uri_for(account)
-          result << account_followers_url(account) if account.group?
+          result << followers_uri_for(account) if account.group?
-        end)
+        end.compact)
         cc.concat(FollowRequest.where(target_account_id: status.account_id, account_id: account_ids).each_with_object([]) do |request, result|
           result << uri_for(request.account)
-          result << account_followers_url(request.account) if request.account.group?
+          result << followers_uri_for(request.account) if request.account.group?
-        end)
+        end.compact)
       else
         cc.concat(status.active_mentions.each_with_object([]) do |mention, result|
           result << uri_for(mention.account)
-          result << account_followers_url(mention.account) if mention.account.group?
+          result << followers_uri_for(mention.account) if mention.account.group?
-        end)
+        end.compact)
       end
     end
 

app/lib/formatter.rb

@@ -214,39 +214,10 @@ class Formatter
     result.flatten.join
   end
 
-  UNICODE_ESCAPE_BLACKLIST_RE = /\p{Z}|\p{P}/
-
   def utf8_friendly_extractor(text, options = {})
-    old_to_new_index = [0]
-
-    escaped = text.chars.map do |c|
-      output = begin
-        if c.ord.to_s(16).length > 2 && !UNICODE_ESCAPE_BLACKLIST_RE.match?(c)
-          CGI.escape(c)
-        else
-          c
-        end
-      end
-
-      old_to_new_index << old_to_new_index.last + output.length
-
-      output
-    end.join
-
     # Note: I couldn't obtain list_slug with @user/list-name format
     # for mention so this requires additional check
-    special = Extractor.extract_urls_with_indices(escaped, options).map do |extract|
+    special = Extractor.extract_urls_with_indices(text, options)
-      new_indices = [
-        old_to_new_index.find_index(extract[:indices].first),
-        old_to_new_index.find_index(extract[:indices].last),
-      ]
-
-      next extract.merge(
-        indices: new_indices,
-        url: text[new_indices.first..new_indices.last - 1]
-      )
-    end
-
     standard = Extractor.extract_entities_with_indices(text, options)
     extra = Extractor.extract_extra_uris_with_indices(text, options)
 

app/lib/webfinger.rb

@@ -46,7 +46,9 @@ class Webfinger
   def body_from_webfinger(url = standard_url, use_fallback = true)
     webfinger_request(url).perform do |res|
       if res.code == 200
-        res.body_with_limit
+        body = res.body_with_limit
+        raise Webfinger::Error, "Request for #{@uri} returned empty response" if body.empty?
+        body
       elsif res.code == 404 && use_fallback
         body_from_host_meta
       elsif res.code == 410

app/models/account.rb

@@ -58,8 +58,8 @@ class Account < ApplicationRecord
     hub_url
   )
 
-  USERNAME_RE = /[a-z0-9_]+([a-z0-9_\.-]+[a-z0-9_]+)?/i
+  USERNAME_RE   = /[a-z0-9_]+([a-z0-9_\.-]+[a-z0-9_]+)?/i
-  MENTION_RE  = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[[:word:]\.\-]+[a-z0-9]+)?)/i
+  MENTION_RE    = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[[:word:]\.\-]+[[:word:]]+)?)/i
 
   include AccountAssociations
   include AccountAvatar
@@ -232,11 +232,11 @@ class Account < ApplicationRecord
     suspended? && deletion_request.present?
   end
 
-  def suspend!(date: Time.now.utc, origin: :local)
+  def suspend!(date: Time.now.utc, origin: :local, block_email: true)
     transaction do
       create_deletion_request!
       update!(suspended_at: date, suspension_origin: origin)
-      create_canonical_email_block!
+      create_canonical_email_block! if block_email
     end
   end
 
@@ -295,7 +295,11 @@ class Account < ApplicationRecord
   end
 
   def fields
-    (self[:fields] || []).map { |f| Field.new(self, f) }
+    (self[:fields] || []).map do |f|
+      Field.new(self, f)
+    rescue
+      nil
+    end.compact
   end
 
   def fields_attributes=(attributes)
@@ -570,7 +574,11 @@ class Account < ApplicationRecord
   def create_canonical_email_block!
     return unless local? && user_email.present?
 
-    CanonicalEmailBlock.create(reference_account: self, email: user_email)
+    begin
+      CanonicalEmailBlock.create(reference_account: self, email: user_email)
+    rescue ActiveRecord::RecordNotUnique
+      # A canonical e-mail block may already exist for the same e-mail
+    end
   end
 
   def destroy_canonical_email_block!

app/models/account_note.rb

@@ -17,4 +17,5 @@ class AccountNote < ApplicationRecord
   belongs_to :target_account, class_name: 'Account'
 
   validates :account_id, uniqueness: { scope: :target_account_id }
+  validates :comment, length: { maximum: 2_000 }
 end

app/models/canonical_email_block.rb

@@ -15,7 +15,7 @@ class CanonicalEmailBlock < ApplicationRecord
 
   belongs_to :reference_account, class_name: 'Account'
 
-  validates :canonical_email_hash, presence: true
+  validates :canonical_email_hash, presence: true, uniqueness: true
 
   def email=(email)
     self.canonical_email_hash = email_to_canonical_email_hash(email)

app/models/status.rb

@@ -338,7 +338,7 @@ class Status < ApplicationRecord
     def from_text(text)
       return [] if text.blank?
 
-      text.scan(FetchLinkCardService::URL_PATTERN).map(&:first).uniq.filter_map do |url|
+      text.scan(FetchLinkCardService::URL_PATTERN).map(&:second).uniq.filter_map do |url|
         status = begin
           if TagManager.instance.local_url?(url)
             ActivityPub::TagManager.instance.uri_to_resource(url, Status)
@@ -426,7 +426,7 @@ class Status < ApplicationRecord
   end
 
   def decrement_counter_caches
-    return if direct_visibility?
+    return if direct_visibility? || new_record?
 
     account&.decrement_count!(:statuses_count)
     reblog&.decrement_count!(:reblogs_count) if reblog?

app/models/user.rb

@@ -63,7 +63,7 @@ class User < ApplicationRecord
   devise :two_factor_backupable,
          otp_number_of_backup_codes: 10
 
-  devise :registerable, :recoverable, :rememberable, :validatable,
+  devise :registerable, :recoverable, :validatable,
          :confirmable
 
   include Omniauthable

app/serializers/manifest_serializer.rb

@@ -48,7 +48,7 @@ class ManifestSerializer < ActiveModel::Serializer
   end
 
   def scope
-    root_url
+    '/'
   end
 
   def share_target

app/serializers/rest/instance_serializer.rb

@@ -5,7 +5,8 @@ class REST::InstanceSerializer < ActiveModel::Serializer
 
   attributes :uri, :title, :short_description, :description, :email,
              :version, :urls, :stats, :thumbnail,
-             :languages, :registrations, :approval_required, :invites_enabled
+             :languages, :registrations, :approval_required, :invites_enabled,
+             :configuration
 
   has_one :contact_account, serializer: REST::AccountSerializer
 
@@ -53,6 +54,32 @@ class REST::InstanceSerializer < ActiveModel::Serializer
     { streaming_api: Rails.configuration.x.streaming_api_base_url }
   end
 
+  def configuration
+    {
+      statuses: {
+        max_characters: StatusLengthValidator::MAX_CHARS,
+        max_media_attachments: 4,
+        characters_reserved_per_url: StatusLengthValidator::URL_PLACEHOLDER_CHARS,
+      },
+
+      media_attachments: {
+        supported_mime_types: MediaAttachment::IMAGE_MIME_TYPES + MediaAttachment::VIDEO_MIME_TYPES + MediaAttachment::AUDIO_MIME_TYPES,
+        image_size_limit: MediaAttachment::IMAGE_LIMIT,
+        image_matrix_limit: Attachmentable::MAX_MATRIX_LIMIT,
+        video_size_limit: MediaAttachment::VIDEO_LIMIT,
+        video_frame_rate_limit: MediaAttachment::MAX_VIDEO_FRAME_RATE,
+        video_matrix_limit: MediaAttachment::MAX_VIDEO_MATRIX_LIMIT,
+      },
+
+      polls: {
+        max_options: PollValidator::MAX_OPTIONS,
+        max_characters_per_option: PollValidator::MAX_OPTION_CHARS,
+        min_expiration: PollValidator::MIN_EXPIRATION,
+        max_expiration: PollValidator::MAX_EXPIRATION,
+      },
+    }
+  end
+
   def languages
     [I18n.default_locale]
   end

app/services/fetch_oembed_service.rb

@@ -2,6 +2,7 @@
 
 class FetchOEmbedService
   ENDPOINT_CACHE_EXPIRES_IN = 24.hours.freeze
+  URL_REGEX                 = /(=(http[s]?(%3A|:)(\/\/|%2F%2F)))([^&]*)/i.freeze
 
   attr_reader :url, :options, :format, :endpoint_url
 
@@ -65,10 +66,12 @@ class FetchOEmbedService
   end
 
   def cache_endpoint!
+    return unless URL_REGEX.match?(@endpoint_url)
+
     url_domain = Addressable::URI.parse(@url).normalized_host
 
     endpoint_hash = {
-      endpoint: @endpoint_url.gsub(/(=(http[s]?(%3A|:)(\/\/|%2F%2F)))([^&]*)/i, '={url}'),
+      endpoint: @endpoint_url.gsub(URL_REGEX, '={url}'),
       format: @format,
     }
 

app/services/notify_service.rb

@@ -67,8 +67,49 @@ class NotifyService < BaseService
     message? && @notification.target_status.direct_visibility?
   end
 
+  # Returns true if the sender has been mentionned by the recipient up the thread
   def response_to_recipient?
-    @notification.target_status.in_reply_to_account_id == @recipient.id && @notification.target_status.thread&.direct_visibility?
+    return false if @notification.target_status.in_reply_to_id.nil?
+
+    # Using an SQL CTE to avoid unneeded back-and-forth with SQL server in case of long threads
+    !Status.count_by_sql([<<-SQL.squish, id: @notification.target_status.in_reply_to_id, recipient_id: @recipient.id, sender_id: @notification.from_account.id]).zero?
+      WITH RECURSIVE ancestors(id, in_reply_to_id, replying_to_sender) AS (
+          SELECT
+            s.id, s.in_reply_to_id, (CASE
+              WHEN s.account_id = :recipient_id THEN
+                EXISTS (
+                  SELECT *
+                  FROM mentions m
+                  WHERE m.silent = FALSE AND m.account_id = :sender_id AND m.status_id = s.id
+                )
+              ELSE
+                FALSE
+             END)
+          FROM statuses s
+          WHERE s.id = :id
+        UNION ALL
+          SELECT
+            s.id,
+            s.in_reply_to_id,
+            (CASE
+              WHEN s.account_id = :recipient_id THEN
+                EXISTS (
+                  SELECT *
+                  FROM mentions m
+                  WHERE m.silent = FALSE AND m.account_id = :sender_id AND m.status_id = s.id
+                )
+              ELSE
+                FALSE
+             END)
+          FROM ancestors st
+          JOIN statuses s ON s.id = st.in_reply_to_id
+          WHERE st.replying_to_sender IS FALSE
+      )
+      SELECT COUNT(*)
+      FROM ancestors st
+      JOIN statuses s ON s.id = st.id
+      WHERE st.replying_to_sender IS TRUE AND s.visibility = 3
+    SQL
   end
 
   def from_staff?

app/services/post_status_service.rb

@@ -74,6 +74,9 @@ class PostStatusService < BaseService
     status_for_validation = @account.statuses.build(status_attributes)
 
     if status_for_validation.valid?
+      # Marking the status as destroyed is necessary to prevent the status from being
+      # persisted when the associated media attachments get updated when creating the
+      # scheduled status.
       status_for_validation.destroy
 
       # The following transaction block is needed to wrap the UPDATEs to

app/services/resolve_account_service.rb

@@ -142,6 +142,7 @@ class ResolveAccountService < BaseService
   end
 
   def queue_deletion!
+    @account.suspend!(origin: :remote)
     AccountDeletionWorker.perform_async(@account.id, reserve_username: false, skip_activitypub: true)
   end
 

app/services/unsuspend_account_service.rb

@@ -7,7 +7,7 @@ class UnsuspendAccountService < BaseService
     unsuspend!
     refresh_remote_account!
 
-    return if @account.nil?
+    return if @account.nil? || @account.suspended?
 
     merge_into_home_timelines!
     merge_into_list_timelines!

app/validators/status_length_validator.rb

@@ -2,7 +2,8 @@
 
 class StatusLengthValidator < ActiveModel::Validator
   MAX_CHARS = 500
-  URL_PLACEHOLDER = "\1#{'x' * 23}"
+  URL_PLACEHOLDER_CHARS = 23
+  URL_PLACEHOLDER = "\1#{'x' * URL_PLACEHOLDER_CHARS}"
 
   def validate(status)
     return unless status.local? && !status.reblog?

app/views/about/more.html.haml

@@ -17,11 +17,11 @@
         .row__information-board
           .information-board__section
             %span= t 'about.user_count_before'
-            %strong= number_to_human @instance_presenter.user_count, strip_insignificant_zeros: true
+            %strong= friendly_number_to_human @instance_presenter.user_count
             %span= t 'about.user_count_after', count: @instance_presenter.user_count
           .information-board__section
             %span= t 'about.status_count_before'
-            %strong= number_to_human @instance_presenter.status_count, strip_insignificant_zeros: true
+            %strong= friendly_number_to_human @instance_presenter.status_count
             %span= t 'about.status_count_after', count: @instance_presenter.status_count
         .row__mascot
           .landing-page__mascot

app/views/about/show.html.haml

@@ -70,10 +70,10 @@
 
             .hero-widget__counters__wrapper
               .hero-widget__counter
-                %strong= number_to_human @instance_presenter.user_count, strip_insignificant_zeros: true
+                %strong= friendly_number_to_human @instance_presenter.user_count
                 %span= t 'about.user_count_after', count: @instance_presenter.user_count
               .hero-widget__counter
-                %strong= number_to_human @instance_presenter.active_user_count, strip_insignificant_zeros: true
+                %strong= friendly_number_to_human @instance_presenter.active_user_count
                 %span
                   = t 'about.active_count_after'
                   %abbr{ title: t('about.active_footnote') } *

app/views/accounts/_header.html.haml

@@ -15,17 +15,17 @@
         .details-counters
           .counter{ class: active_nav_class(short_account_url(account), short_account_with_replies_url(account), short_account_media_url(account)) }
             = link_to short_account_url(account), class: 'u-url u-uid', title: number_with_delimiter(account.statuses_count) do
-              %span.counter-number= number_to_human account.statuses_count, strip_insignificant_zeros: true
+              %span.counter-number= friendly_number_to_human account.statuses_count
               %span.counter-label= t('accounts.posts', count: account.statuses_count)
 
           .counter{ class: active_nav_class(account_following_index_url(account)) }
             = link_to account_following_index_url(account), title: number_with_delimiter(account.following_count) do
-              %span.counter-number= number_to_human account.following_count, strip_insignificant_zeros: true
+              %span.counter-number= friendly_number_to_human account.following_count
               %span.counter-label= t('accounts.following', count: account.following_count)
 
           .counter{ class: active_nav_class(account_followers_url(account)) }
             = link_to account_followers_url(account), title: number_with_delimiter(account.followers_count) do
-              %span.counter-number= number_to_human account.followers_count, strip_insignificant_zeros: true
+              %span.counter-number= friendly_number_to_human account.followers_count
               %span.counter-label= t('accounts.followers', count: account.followers_count)
         .spacer
         .public-account-header__tabs__tabs__buttons
@@ -36,8 +36,8 @@
 
       .public-account-header__extra__links
         = link_to account_following_index_url(account) do
-          %strong= number_to_human account.following_count, strip_insignificant_zeros: true
+          %strong= friendly_number_to_human account.following_count
           = t('accounts.following', count: account.following_count)
         = link_to account_followers_url(account) do
-          %strong= number_to_human account.followers_count, strip_insignificant_zeros: true
+          %strong= friendly_number_to_human account.followers_count
           = t('accounts.followers', count: account.followers_count)

app/views/accounts/show.html.haml

@@ -81,6 +81,6 @@
                   = t('accounts.nothing_here')
                 - else
                   %time.formatted{ datetime: featured_tag.last_status_at.iso8601, title: l(featured_tag.last_status_at) }= l featured_tag.last_status_at
-            .trends__item__current= number_to_human featured_tag.statuses_count, strip_insignificant_zeros: true
+            .trends__item__current= friendly_number_to_human featured_tag.statuses_count
 
     = render 'application/sidebar'

app/views/admin/dashboard/index.html.haml

@@ -13,42 +13,42 @@
   %div
     = link_to admin_accounts_url(local: 1, recent: 1) do
       .dashboard__counters__num{ title: number_with_delimiter(@users_count, strip_insignificant_zeros: true) }
-        = number_to_human @users_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @users_count
       .dashboard__counters__label= t 'admin.dashboard.total_users'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@registrations_week, strip_insignificant_zeros: true) }
-        = number_to_human @registrations_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @registrations_week
       .dashboard__counters__label= t 'admin.dashboard.week_users_new'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@logins_week, strip_insignificant_zeros: true) }
-        = number_to_human @logins_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @logins_week
       .dashboard__counters__label= t 'admin.dashboard.week_users_active'
   %div
     = link_to admin_pending_accounts_path do
       .dashboard__counters__num{ title: number_with_delimiter(@pending_users_count, strip_insignificant_zeros: true) }
-        = number_to_human @pending_users_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @pending_users_count
       .dashboard__counters__label= t 'admin.dashboard.pending_users'
   %div
     = link_to admin_reports_url do
       .dashboard__counters__num{ title: number_with_delimiter(@reports_count, strip_insignificant_zeros: true) }
-        = number_to_human @reports_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @reports_count
       .dashboard__counters__label= t 'admin.dashboard.open_reports'
   %div
     = link_to admin_tags_path(pending_review: '1') do
       .dashboard__counters__num{ title: number_with_delimiter(@pending_tags_count, strip_insignificant_zeros: true) }
-        = number_to_human @pending_tags_count, strip_insignificant_zeros: true
+        = friendly_number_to_human @pending_tags_count
       .dashboard__counters__label= t 'admin.dashboard.pending_tags'
   %div
     %div
       .dashboard__counters__num{ title: number_with_delimiter(@interactions_week, strip_insignificant_zeros: true) }
-        = number_to_human @interactions_week, strip_insignificant_zeros: true
+        = friendly_number_to_human @interactions_week
       .dashboard__counters__label= t 'admin.dashboard.week_interactions'
   %div
     = link_to sidekiq_url do
       .dashboard__counters__num{ title: number_with_delimiter(@queue_backlog, strip_insignificant_zeros: true) }
-        = number_to_human @queue_backlog, strip_insignificant_zeros: true
+        = friendly_number_to_human @queue_backlog
       .dashboard__counters__label= t 'admin.dashboard.backlog'
 
 .dashboard__widgets

app/views/admin/follow_recommendations/_account.html.haml

@@ -7,10 +7,10 @@
         %tr
           %td= account_link_to account
           %td.accounts-table__count.optional
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           %td.accounts-table__count.optional
-            = number_to_human account.followers_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.followers_count
             %small= t('accounts.followers', count: account.followers_count).downcase
           %td.accounts-table__count
             - if account.last_status_at.present?

app/views/admin/instances/_instance.html.haml

@@ -30,4 +30,4 @@
           = ' / '
           %span.negative-hint
             = t('admin.instances.delivery.unavailable_message')
-    .trends__item__current{ title: t('admin.instances.known_accounts', count: instance.accounts_count) }= number_to_human instance.accounts_count, strip_insignificant_zeros: true
+    .trends__item__current{ title: t('admin.instances.known_accounts', count: instance.accounts_count) }= friendly_number_to_human instance.accounts_count

app/views/admin/tags/_tag.html.haml

@@ -16,4 +16,4 @@
             = fa_icon 'fire fw'
             = t('admin.tags.trending_right_now')
 
-      .trends__item__current= number_to_human tag.history.first[:uses], strip_insignificant_zeros: true
+      .trends__item__current= friendly_number_to_human tag.history.first[:uses]

app/views/directories/index.html.haml

@@ -39,10 +39,10 @@
 
         .directory__card__extra
           .accounts-table__count
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           .accounts-table__count
-            = number_to_human account.followers_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.followers_count
             %small= t('accounts.followers', count: account.followers_count).downcase
           .accounts-table__count
             - if account.last_status_at.present?

app/views/relationships/_account.html.haml

@@ -9,10 +9,10 @@
             = interrelationships_icon(@relationships, account.id)
           %td= account_link_to account
           %td.accounts-table__count.optional
-            = number_to_human account.statuses_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.statuses_count
             %small= t('accounts.posts', count: account.statuses_count).downcase
           %td.accounts-table__count.optional
-            = number_to_human account.followers_count, strip_insignificant_zeros: true
+            = friendly_number_to_human account.followers_count
             %small= t('accounts.followers', count: account.followers_count).downcase
           %td.accounts-table__count
             - if account.last_status_at.present?

app/views/settings/featured_tags/index.html.haml

@@ -28,4 +28,4 @@
           - else
             %time{ datetime: featured_tag.last_status_at.iso8601, title: l(featured_tag.last_status_at) }= l featured_tag.last_status_at
           = table_link_to 'trash', t('filters.index.delete'), settings_featured_tag_path(featured_tag), method: :delete, data: { confirm: t('admin.accounts.are_you_sure') }
-      .trends__item__current= number_to_human featured_tag.statuses_count, strip_insignificant_zeros: true
+      .trends__item__current= friendly_number_to_human featured_tag.statuses_count

app/views/statuses/_detailed_status.html.haml

@@ -55,18 +55,18 @@
         = fa_icon('reply')
       - else
         = fa_icon('reply-all')
-      %span.detailed-status__reblogs>= number_to_human status.replies_count, strip_insignificant_zeros: true
+      %span.detailed-status__reblogs>= friendly_number_to_human status.replies_count
       = " "
     ·
     - if status.public_visibility? || status.unlisted_visibility?
       = link_to remote_interaction_path(status, type: :reblog), class: 'modal-button detailed-status__link' do
         = fa_icon('retweet')
-        %span.detailed-status__reblogs>= number_to_human status.reblogs_count, strip_insignificant_zeros: true
+        %span.detailed-status__reblogs>= friendly_number_to_human status.reblogs_count
         = " "
       ·
     = link_to remote_interaction_path(status, type: :favourite), class: 'modal-button detailed-status__link' do
       = fa_icon('star')
-      %span.detailed-status__favorites>= number_to_human status.favourites_count, strip_insignificant_zeros: true
+      %span.detailed-status__favorites>= friendly_number_to_human status.favourites_count
       = " "
 
     - if user_signed_in?

app/workers/move_worker.rb

@@ -13,9 +13,13 @@ class MoveWorker
       queue_follow_unfollows!
     end
 
+    @deferred_error = nil
+
     copy_account_notes!
     carry_blocks_over!
     carry_mutes_over!
+
+    raise @deferred_error unless @deferred_error.nil?
   rescue ActiveRecord::RecordNotFound
     true
   end
@@ -36,21 +40,31 @@ class MoveWorker
 
     @source_account.followers.local.select(:id).find_in_batches do |accounts|
       UnfollowFollowWorker.push_bulk(accounts.map(&:id)) { |follower_id| [follower_id, @source_account.id, @target_account.id, bypass_locked] }
+    rescue => e
+      @deferred_error = e
     end
   end
 
   def copy_account_notes!
     AccountNote.where(target_account: @source_account).find_each do |note|
-      text = I18n.with_locale(note.account.user.locale || I18n.default_locale) do
+      text = I18n.with_locale(note.account.user&.locale || I18n.default_locale) do
         I18n.t('move_handler.copy_account_note_text', acct: @source_account.acct)
       end
 
       new_note = AccountNote.find_by(account: note.account, target_account: @target_account)
       if new_note.nil?
-        AccountNote.create!(account: note.account, target_account: @target_account, comment: [text, note.comment].join('\n'))
+        begin
+          AccountNote.create!(account: note.account, target_account: @target_account, comment: [text, note.comment].join("\n"))
+        rescue ActiveRecord::RecordInvalid
+          AccountNote.create!(account: note.account, target_account: @target_account, comment: note.comment)
+        end
       else
-        new_note.update!(comment: [text, note.comment, '\n', new_note.comment].join('\n'))
+        new_note.update!(comment: [text, note.comment, "\n", new_note.comment].join("\n"))
       end
+    rescue ActiveRecord::RecordInvalid
+      nil
+    rescue => e
+      @deferred_error = e
     end
   end
 
@@ -60,6 +74,8 @@ class MoveWorker
         BlockService.new.call(block.account, @target_account)
         add_account_note_if_needed!(block.account, 'move_handler.carry_blocks_over_text')
       end
+    rescue => e
+      @deferred_error = e
     end
   end
 
@@ -67,12 +83,14 @@ class MoveWorker
     @source_account.muted_by_relationships.where(account: Account.local).find_each do |mute|
       MuteService.new.call(mute.account, @target_account, notifications: mute.hide_notifications) unless mute.account.muting?(@target_account) || mute.account.following?(@target_account)
       add_account_note_if_needed!(mute.account, 'move_handler.carry_mutes_over_text')
+    rescue => e
+      @deferred_error = e
     end
   end
 
   def add_account_note_if_needed!(account, id)
     unless AccountNote.where(account: account, target_account: @target_account).exists?
-      text = I18n.with_locale(account.user.locale || I18n.default_locale) do
+      text = I18n.with_locale(account.user&.locale || I18n.default_locale) do
         I18n.t(id, acct: @source_account.acct)
       end
       AccountNote.create!(account: account, target_account: @target_account, comment: text)

config/application.rb

@@ -1,6 +1,21 @@
 require_relative 'boot'
 
-require 'rails/all'
+require 'rails'
+
+require 'active_record/railtie'
+#require 'active_storage/engine'
+require 'action_controller/railtie'
+require 'action_view/railtie'
+require 'action_mailer/railtie'
+require 'active_job/railtie'
+#require 'action_cable/engine'
+#require 'action_mailbox/engine'
+#require 'action_text/engine'
+#require 'rails/test_unit/railtie'
+require 'sprockets/railtie'
+
+# Used to be implicitly required in action_mailbox/engine
+require 'mail'
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.

config/deploy.rb

@@ -2,7 +2,7 @@
 
 lock '3.16.0'
 
-set :repo_url, ENV.fetch('REPO', 'https://github.com/tootsuite/mastodon.git')
+set :repo_url, ENV.fetch('REPO', 'https://github.com/mastodon/mastodon.git')
 set :branch, ENV.fetch('BRANCH', 'master')
 
 set :application, 'mastodon'

config/initializers/devise.rb

@@ -1,3 +1,5 @@
+require 'devise/strategies/authenticatable'
+
 Warden::Manager.after_set_user except: :fetch do |user, warden|
   if user.session_active?(warden.cookies.signed['_session_id'] || warden.raw_session['auth_id'])
     session_id = warden.cookies.signed['_session_id'] || warden.raw_session['auth_id']
@@ -72,17 +74,48 @@ module Devise
   mattr_accessor :ldap_uid_conversion_replace
   @@ldap_uid_conversion_replace = nil
 
-  class Strategies::PamAuthenticatable
+  module Strategies
-    def valid?
+    class PamAuthenticatable
-      super && ::Devise.pam_authentication
+      def valid?
+        super && ::Devise.pam_authentication
+      end
+    end
+
+    class SessionActivationRememberable < Authenticatable
+      def valid?
+        @session_cookie = nil
+        session_cookie.present?
+      end
+
+      def authenticate!
+        resource = SessionActivation.find_by(session_id: session_cookie)&.user
+
+        unless resource
+          cookies.delete('_session_id')
+          return pass
+        end
+
+        if validate(resource)
+          success!(resource)
+        end
+      end
+
+      private
+
+      def session_cookie
+        @session_cookie ||= cookies.signed['_session_id']
+      end
     end
   end
 end
 
+Warden::Strategies.add(:session_activation_rememberable, Devise::Strategies::SessionActivationRememberable)
+
 Devise.setup do |config|
   config.warden do |manager|
     manager.default_strategies(scope: :user).unshift :two_factor_ldap_authenticatable if Devise.ldap_authentication
     manager.default_strategies(scope: :user).unshift :two_factor_pam_authenticatable  if Devise.pam_authentication
+    manager.default_strategies(scope: :user).unshift :session_activation_rememberable
     manager.default_strategies(scope: :user).unshift :two_factor_authenticatable
     manager.default_strategies(scope: :user).unshift :two_factor_backupable
   end