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-rw-r--r--app/controllers/about_controller.rb63
-rw-r--r--app/controllers/account_follow_controller.rb12
-rw-r--r--app/controllers/account_unfollow_controller.rb12
-rw-r--r--app/controllers/accounts_controller.rb61
-rw-r--r--app/controllers/activitypub/claims_controller.rb2
-rw-r--r--app/controllers/activitypub/collections_controller.rb2
-rw-r--r--app/controllers/activitypub/followers_synchronizations_controller.rb2
-rw-r--r--app/controllers/activitypub/inboxes_controller.rb10
-rw-r--r--app/controllers/activitypub/outboxes_controller.rb2
-rw-r--r--app/controllers/activitypub/replies_controller.rb2
-rw-r--r--app/controllers/admin/accounts_controller.rb6
-rw-r--r--app/controllers/admin/confirmations_controller.rb2
-rw-r--r--app/controllers/admin/custom_emojis_controller.rb2
-rw-r--r--app/controllers/admin/export_domain_blocks_controller.rb2
-rw-r--r--app/controllers/admin/ip_blocks_controller.rb2
-rw-r--r--app/controllers/admin/roles_controller.rb3
-rw-r--r--app/controllers/admin/settings/about_controller.rb9
-rw-r--r--app/controllers/admin/settings/appearance_controller.rb9
-rw-r--r--app/controllers/admin/settings/branding_controller.rb9
-rw-r--r--app/controllers/admin/settings/content_retention_controller.rb9
-rw-r--r--app/controllers/admin/settings/discovery_controller.rb9
-rw-r--r--app/controllers/admin/settings/registrations_controller.rb9
-rw-r--r--app/controllers/admin/settings_controller.rb10
-rw-r--r--app/controllers/admin/site_uploads_controller.rb2
-rw-r--r--app/controllers/admin/statuses_controller.rb16
-rw-r--r--app/controllers/admin/trends/links/preview_card_providers_controller.rb2
-rw-r--r--app/controllers/admin/trends/links_controller.rb3
-rw-r--r--app/controllers/admin/trends/statuses_controller.rb7
-rw-r--r--app/controllers/admin/trends/tags_controller.rb2
-rw-r--r--app/controllers/admin/users/roles_controller.rb1
-rw-r--r--app/controllers/api/base_controller.rb12
-rw-r--r--app/controllers/api/v1/accounts/follower_accounts_controller.rb2
-rw-r--r--app/controllers/api/v1/accounts/following_accounts_controller.rb2
-rw-r--r--app/controllers/api/v1/accounts/pins_controller.rb2
-rw-r--r--app/controllers/api/v1/accounts_controller.rb6
-rw-r--r--app/controllers/api/v1/admin/accounts_controller.rb5
-rw-r--r--app/controllers/api/v1/admin/canonical_email_blocks_controller.rb95
-rw-r--r--app/controllers/api/v1/admin/domain_allows_controller.rb2
-rw-r--r--app/controllers/api/v1/admin/domain_blocks_controller.rb3
-rw-r--r--app/controllers/api/v1/admin/email_domain_blocks_controller.rb88
-rw-r--r--app/controllers/api/v1/admin/ip_blocks_controller.rb93
-rw-r--r--app/controllers/api/v1/featured_tags_controller.rb6
-rw-r--r--app/controllers/api/v1/filters_controller.rb2
-rw-r--r--app/controllers/api/v1/instances/domain_blocks_controller.rb23
-rw-r--r--app/controllers/api/v1/instances/extended_descriptions_controller.rb18
-rw-r--r--app/controllers/api/v1/instances/privacy_policies_controller.rb18
-rw-r--r--app/controllers/api/v1/instances_controller.rb2
-rw-r--r--app/controllers/api/v1/lists_controller.rb4
-rw-r--r--app/controllers/api/v1/statuses/translations_controller.rb29
-rw-r--r--app/controllers/api/v1/statuses_controller.rb4
-rw-r--r--app/controllers/api/v1/tags_controller.rb2
-rw-r--r--app/controllers/api/v1/trends/links_controller.rb4
-rw-r--r--app/controllers/api/v1/trends/tags_controller.rb2
-rw-r--r--app/controllers/api/v2/instances_controller.rb8
-rw-r--r--app/controllers/api/v2/media_controller.rb2
-rw-r--r--app/controllers/api/v2/search_controller.rb14
-rw-r--r--app/controllers/auth/omniauth_callbacks_controller.rb3
-rw-r--r--app/controllers/auth/registrations_controller.rb17
-rw-r--r--app/controllers/concerns/account_controller_concern.rb3
-rw-r--r--app/controllers/concerns/accountable_concern.rb8
-rw-r--r--app/controllers/concerns/signature_verification.rb88
-rw-r--r--app/controllers/concerns/web_app_controller_concern.rb32
-rw-r--r--app/controllers/directories_controller.rb37
-rw-r--r--app/controllers/filters/statuses_controller.rb5
-rw-r--r--app/controllers/follower_accounts_controller.rb8
-rw-r--r--app/controllers/following_accounts_controller.rb8
-rw-r--r--app/controllers/home_controller.rb32
-rw-r--r--app/controllers/privacy_controller.rb19
-rw-r--r--app/controllers/public_timelines_controller.rb31
-rw-r--r--app/controllers/remote_follow_controller.rb46
-rw-r--r--app/controllers/remote_interaction_controller.rb60
-rw-r--r--app/controllers/settings/deletes_controller.rb5
-rw-r--r--app/controllers/settings/featured_tags_controller.rb6
-rw-r--r--app/controllers/settings/preferences_controller.rb2
-rw-r--r--app/controllers/statuses_controller.rb16
-rw-r--r--app/controllers/tags_controller.rb13
76 files changed, 695 insertions, 474 deletions
diff --git a/app/controllers/about_controller.rb b/app/controllers/about_controller.rb
index 620c0ff78..104348614 100644
--- a/app/controllers/about_controller.rb
+++ b/app/controllers/about_controller.rb
@@ -1,74 +1,19 @@
 # frozen_string_literal: true
 
 class AboutController < ApplicationController
-  include RegistrationSpamConcern
+  include WebAppControllerConcern
 
-  before_action :set_pack
+  skip_before_action :require_functional!
 
-  layout 'public'
-
-  before_action :require_open_federation!, only: [:show, :more]
-  before_action :set_body_classes, only: :show
   before_action :set_instance_presenter
-  before_action :set_expires_in, only: [:more, :terms]
-  before_action :set_registration_form_time, only: :show
-
-  skip_before_action :require_functional!, only: [:more, :terms]
-
-  def show; end
 
-  def more
-    flash.now[:notice] = I18n.t('about.instance_actor_flash') if params[:instance_actor]
-
-    toc_generator = TOCGenerator.new(@instance_presenter.site_extended_description)
-
-    @rules             = Rule.ordered
-    @contents          = toc_generator.html
-    @table_of_contents = toc_generator.toc
-    @blocks            = DomainBlock.with_user_facing_limitations.by_severity if display_blocks?
+  def show
+    expires_in 0, public: true unless user_signed_in?
   end
 
-  def terms; end
-
-  helper_method :display_blocks?
-  helper_method :display_blocks_rationale?
-  helper_method :public_fetch_mode?
-  helper_method :new_user
-
   private
 
-  def require_open_federation!
-    not_found if whitelist_mode?
-  end
-
-  def display_blocks?
-    Setting.show_domain_blocks == 'all' || (Setting.show_domain_blocks == 'users' && user_signed_in?)
-  end
-
-  def display_blocks_rationale?
-    Setting.show_domain_blocks_rationale == 'all' || (Setting.show_domain_blocks_rationale == 'users' && user_signed_in?)
-  end
-
-  def new_user
-    User.new.tap do |user|
-      user.build_account
-      user.build_invite_request
-    end
-  end
-
-  def set_pack
-    use_pack 'public'
-  end
-
   def set_instance_presenter
     @instance_presenter = InstancePresenter.new
   end
-
-  def set_body_classes
-    @hide_navbar = true
-  end
-
-  def set_expires_in
-    expires_in 0, public: true
-  end
 end
diff --git a/app/controllers/account_follow_controller.rb b/app/controllers/account_follow_controller.rb
deleted file mode 100644
index 33394074d..000000000
--- a/app/controllers/account_follow_controller.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# frozen_string_literal: true
-
-class AccountFollowController < ApplicationController
-  include AccountControllerConcern
-
-  before_action :authenticate_user!
-
-  def create
-    FollowService.new.call(current_user.account, @account, with_rate_limit: true)
-    redirect_to account_path(@account)
-  end
-end
diff --git a/app/controllers/account_unfollow_controller.rb b/app/controllers/account_unfollow_controller.rb
deleted file mode 100644
index 378ec86dc..000000000
--- a/app/controllers/account_unfollow_controller.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-# frozen_string_literal: true
-
-class AccountUnfollowController < ApplicationController
-  include AccountControllerConcern
-
-  before_action :authenticate_user!
-
-  def create
-    UnfollowService.new.call(current_user.account, @account)
-    redirect_to account_path(@account)
-  end
-end
diff --git a/app/controllers/accounts_controller.rb b/app/controllers/accounts_controller.rb
index 9949206cb..f36a0c859 100644
--- a/app/controllers/accounts_controller.rb
+++ b/app/controllers/accounts_controller.rb
@@ -7,9 +7,8 @@ class AccountsController < ApplicationController
   include AccountControllerConcern
   include SignatureAuthentication
 
-  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
+  before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :set_cache_headers
-  before_action :set_body_classes
 
   skip_around_action :set_locale, if: -> { [:json, :rss].include?(request.format&.to_sym) }
   skip_before_action :require_functional!, unless: :whitelist_mode?
@@ -17,26 +16,7 @@ class AccountsController < ApplicationController
   def show
     respond_to do |format|
       format.html do
-        use_pack 'public'
         expires_in 0, public: true unless user_signed_in?
-
-        @pinned_statuses   = []
-        @endorsed_accounts = @account.endorsed_accounts.to_a.sample(4)
-        @featured_hashtags = @account.featured_tags.order(statuses_count: :desc)
-
-        if current_account && @account.blocking?(current_account)
-          @statuses = []
-          return
-        end
-
-        @pinned_statuses = cached_filtered_status_pins if show_pinned_statuses?
-        @statuses        = cached_filtered_status_page
-        @rss_url         = rss_url
-
-        unless @statuses.empty?
-          @older_url = older_url if @statuses.last.id > filtered_statuses.last.id
-          @newer_url = newer_url if @statuses.first.id < filtered_statuses.first.id
-        end
       end
 
       format.rss do
@@ -56,18 +36,6 @@ class AccountsController < ApplicationController
 
   private
 
-  def set_body_classes
-    @body_classes = 'with-modals'
-  end
-
-  def show_pinned_statuses?
-    [replies_requested?, media_requested?, tag_requested?, params[:max_id].present?, params[:min_id].present?].none?
-  end
-
-  def filtered_pinned_statuses
-    @account.pinned_statuses.not_local_only.where(visibility: [:public, :unlisted])
-  end
-
   def filtered_statuses
     default_statuses.tap do |statuses|
       statuses.merge!(hashtag_scope)    if tag_requested?
@@ -114,26 +82,6 @@ class AccountsController < ApplicationController
     end
   end
 
-  def older_url
-    pagination_url(max_id: @statuses.last.id)
-  end
-
-  def newer_url
-    pagination_url(min_id: @statuses.first.id)
-  end
-
-  def pagination_url(max_id: nil, min_id: nil)
-    if tag_requested?
-      short_account_tag_url(@account, params[:tag], max_id: max_id, min_id: min_id)
-    elsif media_requested?
-      short_account_media_url(@account, max_id: max_id, min_id: min_id)
-    elsif replies_requested?
-      short_account_with_replies_url(@account, max_id: max_id, min_id: min_id)
-    else
-      short_account_url(@account, max_id: max_id, min_id: min_id)
-    end
-  end
-
   def media_requested?
     request.path.split('.').first.end_with?('/media') && !tag_requested?
   end
@@ -146,13 +94,6 @@ class AccountsController < ApplicationController
     request.path.split('.').first.end_with?(Addressable::URI.parse("/tagged/#{params[:tag]}").normalize)
   end
 
-  def cached_filtered_status_pins
-    cache_collection(
-      filtered_pinned_statuses,
-      Status
-    )
-  end
-
   def cached_filtered_status_page
     cache_collection_paginated_by_id(
       filtered_statuses,
diff --git a/app/controllers/activitypub/claims_controller.rb b/app/controllers/activitypub/claims_controller.rb
index 08ad952df..339333e46 100644
--- a/app/controllers/activitypub/claims_controller.rb
+++ b/app/controllers/activitypub/claims_controller.rb
@@ -6,7 +6,7 @@ class ActivityPub::ClaimsController < ActivityPub::BaseController
 
   skip_before_action :authenticate_user!
 
-  before_action :require_signature!
+  before_action :require_account_signature!
   before_action :set_claim_result
 
   def create
diff --git a/app/controllers/activitypub/collections_controller.rb b/app/controllers/activitypub/collections_controller.rb
index ac7ab8a0b..23d874071 100644
--- a/app/controllers/activitypub/collections_controller.rb
+++ b/app/controllers/activitypub/collections_controller.rb
@@ -4,7 +4,7 @@ class ActivityPub::CollectionsController < ActivityPub::BaseController
   include SignatureVerification
   include AccountOwnedConcern
 
-  before_action :require_signature!, if: :authorized_fetch_mode?
+  before_action :require_account_signature!, if: :authorized_fetch_mode?
   before_action :set_items
   before_action :set_size
   before_action :set_type
diff --git a/app/controllers/activitypub/followers_synchronizations_controller.rb b/app/controllers/activitypub/followers_synchronizations_controller.rb
index 940b77cf0..4e445bcb1 100644
--- a/app/controllers/activitypub/followers_synchronizations_controller.rb
+++ b/app/controllers/activitypub/followers_synchronizations_controller.rb
@@ -4,7 +4,7 @@ class ActivityPub::FollowersSynchronizationsController < ActivityPub::BaseContro
   include SignatureVerification
   include AccountOwnedConcern
 
-  before_action :require_signature!
+  before_action :require_account_signature!
   before_action :set_items
   before_action :set_cache_headers
 
diff --git a/app/controllers/activitypub/inboxes_controller.rb b/app/controllers/activitypub/inboxes_controller.rb
index 92dcb5ac7..5ee85474e 100644
--- a/app/controllers/activitypub/inboxes_controller.rb
+++ b/app/controllers/activitypub/inboxes_controller.rb
@@ -6,7 +6,7 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
   include AccountOwnedConcern
 
   before_action :skip_unknown_actor_activity
-  before_action :require_signature!
+  before_action :require_actor_signature!
   skip_before_action :authenticate_user!
 
   def create
@@ -49,17 +49,17 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
   end
 
   def upgrade_account
-    if signed_request_account.ostatus?
+    if signed_request_account&.ostatus?
       signed_request_account.update(last_webfingered_at: nil)
       ResolveAccountWorker.perform_async(signed_request_account.acct)
     end
 
-    DeliveryFailureTracker.reset!(signed_request_account.inbox_url)
+    DeliveryFailureTracker.reset!(signed_request_actor.inbox_url)
   end
 
   def process_collection_synchronization
     raw_params = request.headers['Collection-Synchronization']
-    return if raw_params.blank? || ENV['DISABLE_FOLLOWERS_SYNCHRONIZATION'] == 'true'
+    return if raw_params.blank? || ENV['DISABLE_FOLLOWERS_SYNCHRONIZATION'] == 'true' || signed_request_account.nil?
 
     # Re-using the syntax for signature parameters
     tree   = SignatureParamsParser.new.parse(raw_params)
@@ -71,6 +71,6 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
   end
 
   def process_payload
-    ActivityPub::ProcessingWorker.perform_async(signed_request_account.id, body, @account&.id)
+    ActivityPub::ProcessingWorker.perform_async(signed_request_actor.id, body, @account&.id, signed_request_actor.class.name)
   end
 end
diff --git a/app/controllers/activitypub/outboxes_controller.rb b/app/controllers/activitypub/outboxes_controller.rb
index cd3992502..60d201f76 100644
--- a/app/controllers/activitypub/outboxes_controller.rb
+++ b/app/controllers/activitypub/outboxes_controller.rb
@@ -6,7 +6,7 @@ class ActivityPub::OutboxesController < ActivityPub::BaseController
   include SignatureVerification
   include AccountOwnedConcern
 
-  before_action :require_signature!, if: :authorized_fetch_mode?
+  before_action :require_account_signature!, if: :authorized_fetch_mode?
   before_action :set_statuses
   before_action :set_cache_headers
 
diff --git a/app/controllers/activitypub/replies_controller.rb b/app/controllers/activitypub/replies_controller.rb
index 4ff7cfa08..8e0f9de2e 100644
--- a/app/controllers/activitypub/replies_controller.rb
+++ b/app/controllers/activitypub/replies_controller.rb
@@ -7,7 +7,7 @@ class ActivityPub::RepliesController < ActivityPub::BaseController
 
   DESCENDANTS_LIMIT = 60
 
-  before_action :require_signature!, if: :authorized_fetch_mode?
+  before_action :require_account_signature!, if: :authorized_fetch_mode?
   before_action :set_status
   before_action :set_cache_headers
   before_action :set_replies
diff --git a/app/controllers/admin/accounts_controller.rb b/app/controllers/admin/accounts_controller.rb
index 46c9aba91..40bf685c5 100644
--- a/app/controllers/admin/accounts_controller.rb
+++ b/app/controllers/admin/accounts_controller.rb
@@ -16,7 +16,11 @@ module Admin
     def batch
       authorize :account, :index?
 
-      @form = Form::AccountBatch.new(form_account_batch_params.merge(current_account: current_account, action: action_from_button))
+      @form = Form::AccountBatch.new(form_account_batch_params)
+      @form.current_account = current_account
+      @form.action = action_from_button
+      @form.select_all_matching = params[:select_all_matching]
+      @form.query = filtered_accounts
       @form.save
     rescue ActionController::ParameterMissing
       flash[:alert] = I18n.t('admin.accounts.no_account_selected')
diff --git a/app/controllers/admin/confirmations_controller.rb b/app/controllers/admin/confirmations_controller.rb
index efe7dcbd4..6f4e42679 100644
--- a/app/controllers/admin/confirmations_controller.rb
+++ b/app/controllers/admin/confirmations_controller.rb
@@ -17,7 +17,7 @@ module Admin
 
       @user.resend_confirmation_instructions
 
-      log_action :confirm, @user
+      log_action :resend, @user
 
       flash[:notice] = I18n.t('admin.accounts.resend_confirmation.success')
       redirect_to admin_accounts_path
diff --git a/app/controllers/admin/custom_emojis_controller.rb b/app/controllers/admin/custom_emojis_controller.rb
index 1fae60f5b..431dc1524 100644
--- a/app/controllers/admin/custom_emojis_controller.rb
+++ b/app/controllers/admin/custom_emojis_controller.rb
@@ -34,7 +34,7 @@ module Admin
       @form = Form::CustomEmojiBatch.new(form_custom_emoji_batch_params.merge(current_account: current_account, action: action_from_button))
       @form.save
     rescue ActionController::ParameterMissing
-      flash[:alert] = I18n.t('admin.accounts.no_account_selected')
+      flash[:alert] = I18n.t('admin.custom_emojis.no_emoji_selected')
     rescue Mastodon::NotPermittedError
       flash[:alert] = I18n.t('admin.custom_emojis.not_permitted')
     rescue ActiveRecord::RecordInvalid => e
diff --git a/app/controllers/admin/export_domain_blocks_controller.rb b/app/controllers/admin/export_domain_blocks_controller.rb
index db8863551..545bd94ed 100644
--- a/app/controllers/admin/export_domain_blocks_controller.rb
+++ b/app/controllers/admin/export_domain_blocks_controller.rb
@@ -62,7 +62,7 @@ module Admin
 
     def export_data
       CSV.generate(headers: export_headers, write_headers: true) do |content|
-        DomainBlock.with_user_facing_limitations.each do |instance|
+        DomainBlock.with_limitations.each do |instance|
           content << [instance.domain, instance.severity, instance.reject_media, instance.reject_reports, instance.public_comment, instance.obfuscate]
         end
       end
diff --git a/app/controllers/admin/ip_blocks_controller.rb b/app/controllers/admin/ip_blocks_controller.rb
index a87520f4e..1bd7ec805 100644
--- a/app/controllers/admin/ip_blocks_controller.rb
+++ b/app/controllers/admin/ip_blocks_controller.rb
@@ -5,7 +5,7 @@ module Admin
     def index
       authorize :ip_block, :index?
 
-      @ip_blocks = IpBlock.page(params[:page])
+      @ip_blocks = IpBlock.order(ip: :asc).page(params[:page])
       @form      = Form::IpBlockBatch.new
     end
 
diff --git a/app/controllers/admin/roles_controller.rb b/app/controllers/admin/roles_controller.rb
index 3e502ccc4..d76aa745b 100644
--- a/app/controllers/admin/roles_controller.rb
+++ b/app/controllers/admin/roles_controller.rb
@@ -23,6 +23,7 @@ module Admin
       @role.current_account = current_account
 
       if @role.save
+        log_action :create, @role
         redirect_to admin_roles_path
       else
         render :new
@@ -39,6 +40,7 @@ module Admin
       @role.current_account = current_account
 
       if @role.update(resource_params)
+        log_action :update, @role
         redirect_to admin_roles_path
       else
         render :edit
@@ -48,6 +50,7 @@ module Admin
     def destroy
       authorize @role, :destroy?
       @role.destroy!
+      log_action :destroy, @role
       redirect_to admin_roles_path
     end
 
diff --git a/app/controllers/admin/settings/about_controller.rb b/app/controllers/admin/settings/about_controller.rb
new file mode 100644
index 000000000..86327fe39
--- /dev/null
+++ b/app/controllers/admin/settings/about_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::AboutController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_about_path
+  end
+end
diff --git a/app/controllers/admin/settings/appearance_controller.rb b/app/controllers/admin/settings/appearance_controller.rb
new file mode 100644
index 000000000..39b2448d8
--- /dev/null
+++ b/app/controllers/admin/settings/appearance_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::AppearanceController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_appearance_path
+  end
+end
diff --git a/app/controllers/admin/settings/branding_controller.rb b/app/controllers/admin/settings/branding_controller.rb
new file mode 100644
index 000000000..4a4d76f49
--- /dev/null
+++ b/app/controllers/admin/settings/branding_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::BrandingController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_branding_path
+  end
+end
diff --git a/app/controllers/admin/settings/content_retention_controller.rb b/app/controllers/admin/settings/content_retention_controller.rb
new file mode 100644
index 000000000..b88336a2c
--- /dev/null
+++ b/app/controllers/admin/settings/content_retention_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::ContentRetentionController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_content_retention_path
+  end
+end
diff --git a/app/controllers/admin/settings/discovery_controller.rb b/app/controllers/admin/settings/discovery_controller.rb
new file mode 100644
index 000000000..be4b57f79
--- /dev/null
+++ b/app/controllers/admin/settings/discovery_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::DiscoveryController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_discovery_path
+  end
+end
diff --git a/app/controllers/admin/settings/registrations_controller.rb b/app/controllers/admin/settings/registrations_controller.rb
new file mode 100644
index 000000000..b4a74349c
--- /dev/null
+++ b/app/controllers/admin/settings/registrations_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Admin::Settings::RegistrationsController < Admin::SettingsController
+  private
+
+  def after_update_redirect_path
+    admin_settings_registrations_path
+  end
+end
diff --git a/app/controllers/admin/settings_controller.rb b/app/controllers/admin/settings_controller.rb
index dc1c79b7f..338a3638c 100644
--- a/app/controllers/admin/settings_controller.rb
+++ b/app/controllers/admin/settings_controller.rb
@@ -2,7 +2,7 @@
 
 module Admin
   class SettingsController < BaseController
-    def edit
+    def show
       authorize :settings, :show?
 
       @admin_settings = Form::AdminSettings.new
@@ -15,14 +15,18 @@ module Admin
 
       if @admin_settings.save
         flash[:notice] = I18n.t('generic.changes_saved_msg')
-        redirect_to edit_admin_settings_path
+        redirect_to after_update_redirect_path
       else
-        render :edit
+        render :show
       end
     end
 
     private
 
+    def after_update_redirect_path
+      raise NotImplementedError
+    end
+
     def settings_params
       params.require(:form_admin_settings).permit(*Form::AdminSettings::KEYS)
     end
diff --git a/app/controllers/admin/site_uploads_controller.rb b/app/controllers/admin/site_uploads_controller.rb
index cacecedb0..a5d2cf41c 100644
--- a/app/controllers/admin/site_uploads_controller.rb
+++ b/app/controllers/admin/site_uploads_controller.rb
@@ -9,7 +9,7 @@ module Admin
 
       @site_upload.destroy!
 
-      redirect_to edit_admin_settings_path, notice: I18n.t('admin.site_uploads.destroyed_msg')
+      redirect_to admin_settings_path, notice: I18n.t('admin.site_uploads.destroyed_msg')
     end
 
     private
diff --git a/app/controllers/admin/statuses_controller.rb b/app/controllers/admin/statuses_controller.rb
index 084921ceb..b80cd20f5 100644
--- a/app/controllers/admin/statuses_controller.rb
+++ b/app/controllers/admin/statuses_controller.rb
@@ -3,18 +3,23 @@
 module Admin
   class StatusesController < BaseController
     before_action :set_account
-    before_action :set_statuses
+    before_action :set_statuses, except: :show
+    before_action :set_status, only: :show
 
     PER_PAGE = 20
 
     def index
-      authorize :status, :index?
+      authorize [:admin, :status], :index?
 
       @status_batch_action = Admin::StatusBatchAction.new
     end
 
+    def show
+      authorize [:admin, @status], :show?
+    end
+
     def batch
-      authorize :status, :index?
+      authorize [:admin, :status], :index?
 
       @status_batch_action = Admin::StatusBatchAction.new(admin_status_batch_action_params.merge(current_account: current_account, report_id: params[:report_id], type: action_from_button))
       @status_batch_action.save!
@@ -32,6 +37,7 @@ module Admin
 
     def after_create_redirect_path
       report_id = @status_batch_action&.report_id || params[:report_id]
+
       if report_id.present?
         admin_report_path(report_id)
       else
@@ -43,6 +49,10 @@ module Admin
       @account = Account.find(params[:account_id])
     end
 
+    def set_status
+      @status = @account.statuses.find(params[:id])
+    end
+
     def set_statuses
       @statuses = Admin::StatusFilter.new(@account, filter_params).results.preload(:application, :preloadable_poll, :media_attachments, active_mentions: :account, reblog: [:account, :application, :preloadable_poll, :media_attachments, active_mentions: :account]).page(params[:page]).per(PER_PAGE)
     end
diff --git a/app/controllers/admin/trends/links/preview_card_providers_controller.rb b/app/controllers/admin/trends/links/preview_card_providers_controller.rb
index 97dee8eca..768b79f8d 100644
--- a/app/controllers/admin/trends/links/preview_card_providers_controller.rb
+++ b/app/controllers/admin/trends/links/preview_card_providers_controller.rb
@@ -14,7 +14,7 @@ class Admin::Trends::Links::PreviewCardProvidersController < Admin::BaseControll
     @form = Trends::PreviewCardProviderBatch.new(trends_preview_card_provider_batch_params.merge(current_account: current_account, action: action_from_button))
     @form.save
   rescue ActionController::ParameterMissing
-    flash[:alert] = I18n.t('admin.accounts.no_account_selected')
+    flash[:alert] = I18n.t('admin.trends.links.publishers.no_publisher_selected')
   ensure
     redirect_to admin_trends_links_preview_card_providers_path(filter_params)
   end
diff --git a/app/controllers/admin/trends/links_controller.rb b/app/controllers/admin/trends/links_controller.rb
index a497eae41..83d68eba6 100644
--- a/app/controllers/admin/trends/links_controller.rb
+++ b/app/controllers/admin/trends/links_controller.rb
@@ -4,6 +4,7 @@ class Admin::Trends::LinksController < Admin::BaseController
   def index
     authorize :preview_card, :review?
 
+    @locales       = PreviewCardTrend.pluck('distinct language')
     @preview_cards = filtered_preview_cards.page(params[:page])
     @form          = Trends::PreviewCardBatch.new
   end
@@ -14,7 +15,7 @@ class Admin::Trends::LinksController < Admin::BaseController
     @form = Trends::PreviewCardBatch.new(trends_preview_card_batch_params.merge(current_account: current_account, action: action_from_button))
     @form.save
   rescue ActionController::ParameterMissing
-    flash[:alert] = I18n.t('admin.accounts.no_account_selected')
+    flash[:alert] = I18n.t('admin.trends.links.no_link_selected')
   ensure
     redirect_to admin_trends_links_path(filter_params)
   end
diff --git a/app/controllers/admin/trends/statuses_controller.rb b/app/controllers/admin/trends/statuses_controller.rb
index c538962f9..3d8b53ea8 100644
--- a/app/controllers/admin/trends/statuses_controller.rb
+++ b/app/controllers/admin/trends/statuses_controller.rb
@@ -2,19 +2,20 @@
 
 class Admin::Trends::StatusesController < Admin::BaseController
   def index
-    authorize :status, :review?
+    authorize [:admin, :status], :review?
 
+    @locales  = StatusTrend.pluck('distinct language')
     @statuses = filtered_statuses.page(params[:page])
     @form     = Trends::StatusBatch.new
   end
 
   def batch
-    authorize :status, :review?
+    authorize [:admin, :status], :review?
 
     @form = Trends::StatusBatch.new(trends_status_batch_params.merge(current_account: current_account, action: action_from_button))
     @form.save
   rescue ActionController::ParameterMissing
-    flash[:alert] = I18n.t('admin.accounts.no_account_selected')
+    flash[:alert] = I18n.t('admin.trends.statuses.no_status_selected')
   ensure
     redirect_to admin_trends_statuses_path(filter_params)
   end
diff --git a/app/controllers/admin/trends/tags_controller.rb b/app/controllers/admin/trends/tags_controller.rb
index 98dd6c8ec..f5946448a 100644
--- a/app/controllers/admin/trends/tags_controller.rb
+++ b/app/controllers/admin/trends/tags_controller.rb
@@ -14,7 +14,7 @@ class Admin::Trends::TagsController < Admin::BaseController
     @form = Trends::TagBatch.new(trends_tag_batch_params.merge(current_account: current_account, action: action_from_button))
     @form.save
   rescue ActionController::ParameterMissing
-    flash[:alert] = I18n.t('admin.accounts.no_account_selected')
+    flash[:alert] = I18n.t('admin.trends.tags.no_tag_selected')
   ensure
     redirect_to admin_trends_tags_path(filter_params)
   end
diff --git a/app/controllers/admin/users/roles_controller.rb b/app/controllers/admin/users/roles_controller.rb
index 0db50cee9..f5dfc643d 100644
--- a/app/controllers/admin/users/roles_controller.rb
+++ b/app/controllers/admin/users/roles_controller.rb
@@ -14,6 +14,7 @@ module Admin
       @user.current_account = current_account
 
       if @user.update(resource_params)
+        log_action :change_role, @user
         redirect_to admin_account_path(@user.account_id), notice: I18n.t('admin.accounts.change_role.changed_msg')
       else
         render :show
diff --git a/app/controllers/api/base_controller.rb b/app/controllers/api/base_controller.rb
index 2e393fbb6..3f3e1ca7b 100644
--- a/app/controllers/api/base_controller.rb
+++ b/app/controllers/api/base_controller.rb
@@ -24,6 +24,10 @@ class Api::BaseController < ApplicationController
     render json: { error: 'Duplicate record' }, status: 422
   end
 
+  rescue_from Date::Error do
+    render json: { error: 'Invalid date supplied' }, status: 422
+  end
+
   rescue_from ActiveRecord::RecordNotFound do
     render json: { error: 'Record not found' }, status: 404
   end
@@ -129,6 +133,12 @@ class Api::BaseController < ApplicationController
   end
 
   def disallow_unauthenticated_api_access?
-    authorized_fetch_mode?
+    ENV['DISALLOW_UNAUTHENTICATED_API_ACCESS'] == 'true' || Rails.configuration.x.whitelist_mode
+  end
+
+  private
+
+  def respond_with_error(code)
+    render json: { error: Rack::Utils::HTTP_STATUS_CODES[code] }, status: code
   end
 end
diff --git a/app/controllers/api/v1/accounts/follower_accounts_controller.rb b/app/controllers/api/v1/accounts/follower_accounts_controller.rb
index dbb8cac5e..208e06ed6 100644
--- a/app/controllers/api/v1/accounts/follower_accounts_controller.rb
+++ b/app/controllers/api/v1/accounts/follower_accounts_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Accounts::FollowerAccountsController < Api::BaseController
-  before_action -> { doorkeeper_authorize! :read, :'read:accounts' }
+  before_action -> { authorize_if_got_token! :read, :'read:accounts' }
   before_action :set_account
   after_action :insert_pagination_headers
 
diff --git a/app/controllers/api/v1/accounts/following_accounts_controller.rb b/app/controllers/api/v1/accounts/following_accounts_controller.rb
index 8c650570f..155ca0907 100644
--- a/app/controllers/api/v1/accounts/following_accounts_controller.rb
+++ b/app/controllers/api/v1/accounts/following_accounts_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Accounts::FollowingAccountsController < Api::BaseController
-  before_action -> { doorkeeper_authorize! :read, :'read:accounts' }
+  before_action -> { authorize_if_got_token! :read, :'read:accounts' }
   before_action :set_account
   after_action :insert_pagination_headers
 
diff --git a/app/controllers/api/v1/accounts/pins_controller.rb b/app/controllers/api/v1/accounts/pins_controller.rb
index 3915b5669..73f845c61 100644
--- a/app/controllers/api/v1/accounts/pins_controller.rb
+++ b/app/controllers/api/v1/accounts/pins_controller.rb
@@ -8,7 +8,7 @@ class Api::V1::Accounts::PinsController < Api::BaseController
   before_action :set_account
 
   def create
-    AccountPin.create!(account: current_account, target_account: @account)
+    AccountPin.find_or_create_by!(account: current_account, target_account: @account)
     render json: @account, serializer: REST::RelationshipSerializer, relationships: relationships_presenter
   end
 
diff --git a/app/controllers/api/v1/accounts_controller.rb b/app/controllers/api/v1/accounts_controller.rb
index 5537cc9b0..be84720aa 100644
--- a/app/controllers/api/v1/accounts_controller.rb
+++ b/app/controllers/api/v1/accounts_controller.rb
@@ -30,12 +30,12 @@ class Api::V1::AccountsController < Api::BaseController
     self.response_body = Oj.dump(response.body)
     self.status        = response.status
   rescue ActiveRecord::RecordInvalid => e
-    render json: ValidationErrorFormatter.new(e, :'account.username' => :username, :'invite_request.text' => :reason).as_json, status: :unprocessable_entity
+    render json: ValidationErrorFormatter.new(e, 'account.username': :username, 'invite_request.text': :reason).as_json, status: :unprocessable_entity
   end
 
   def follow
-    follow  = FollowService.new.call(current_user.account, @account, reblogs: params.key?(:reblogs) ? truthy_param?(:reblogs) : nil, notify: params.key?(:notify) ? truthy_param?(:notify) : nil, with_rate_limit: true)
-    options = @account.locked? || current_user.account.silenced? ? {} : { following_map: { @account.id => { reblogs: follow.show_reblogs?, notify: follow.notify? } }, requested_map: { @account.id => false } }
+    follow  = FollowService.new.call(current_user.account, @account, reblogs: params.key?(:reblogs) ? truthy_param?(:reblogs) : nil, notify: params.key?(:notify) ? truthy_param?(:notify) : nil, languages: params.key?(:languages) ? params[:languages] : nil, with_rate_limit: true)
+    options = @account.locked? || current_user.account.silenced? ? {} : { following_map: { @account.id => { reblogs: follow.show_reblogs?, notify: follow.notify?, languages: follow.languages } }, requested_map: { @account.id => false } }
 
     render json: @account, serializer: REST::RelationshipSerializer, relationships: relationships(**options)
   end
diff --git a/app/controllers/api/v1/admin/accounts_controller.rb b/app/controllers/api/v1/admin/accounts_controller.rb
index 0dee02e94..ae7f7d076 100644
--- a/app/controllers/api/v1/admin/accounts_controller.rb
+++ b/app/controllers/api/v1/admin/accounts_controller.rb
@@ -60,14 +60,13 @@ class Api::V1::Admin::AccountsController < Api::BaseController
   def reject
     authorize @account.user, :reject?
     DeleteAccountService.new.call(@account, reserve_email: false, reserve_username: false)
-    render json: @account, serializer: REST::Admin::AccountSerializer
+    render_empty
   end
 
   def destroy
     authorize @account, :destroy?
-    json = render_to_body json: @account, serializer: REST::Admin::AccountSerializer
     Admin::AccountDeletionWorker.perform_async(@account.id)
-    render json: json
+    render_empty
   end
 
   def unsensitive
diff --git a/app/controllers/api/v1/admin/canonical_email_blocks_controller.rb b/app/controllers/api/v1/admin/canonical_email_blocks_controller.rb
new file mode 100644
index 000000000..9ef1b3be7
--- /dev/null
+++ b/app/controllers/api/v1/admin/canonical_email_blocks_controller.rb
@@ -0,0 +1,95 @@
+# frozen_string_literal: true
+
+class Api::V1::Admin::CanonicalEmailBlocksController < Api::BaseController
+  include Authorization
+  include AccountableConcern
+
+  LIMIT = 100
+
+  before_action -> { authorize_if_got_token! :'admin:read', :'admin:read:canonical_email_blocks' }, only: [:index, :show, :test]
+  before_action -> { authorize_if_got_token! :'admin:write', :'admin:write:canonical_email_blocks' }, except: [:index, :show, :test]
+
+  before_action :set_canonical_email_blocks, only: :index
+  before_action :set_canonical_email_blocks_from_test, only: [:test]
+  before_action :set_canonical_email_block, only: [:show, :destroy]
+
+  after_action :verify_authorized
+  after_action :insert_pagination_headers, only: :index
+
+  PAGINATION_PARAMS = %i(limit).freeze
+
+  def index
+    authorize :canonical_email_block, :index?
+    render json: @canonical_email_blocks, each_serializer: REST::Admin::CanonicalEmailBlockSerializer
+  end
+
+  def show
+    authorize @canonical_email_block, :show?
+    render json: @canonical_email_block, serializer: REST::Admin::CanonicalEmailBlockSerializer
+  end
+
+  def test
+    authorize :canonical_email_block, :test?
+    render json: @canonical_email_blocks, each_serializer: REST::Admin::CanonicalEmailBlockSerializer
+  end
+
+  def create
+    authorize :canonical_email_block, :create?
+    @canonical_email_block = CanonicalEmailBlock.create!(resource_params)
+    log_action :create, @canonical_email_block
+    render json: @canonical_email_block, serializer: REST::Admin::CanonicalEmailBlockSerializer
+  end
+
+  def destroy
+    authorize @canonical_email_block, :destroy?
+    @canonical_email_block.destroy!
+    log_action :destroy, @canonical_email_block
+    render_empty
+  end
+
+  private
+
+  def resource_params
+    params.permit(:canonical_email_hash, :email)
+  end
+
+  def set_canonical_email_blocks
+    @canonical_email_blocks = CanonicalEmailBlock.order(id: :desc).to_a_paginated_by_id(limit_param(LIMIT), params_slice(:max_id, :since_id, :min_id))
+  end
+
+  def set_canonical_email_blocks_from_test
+    @canonical_email_blocks = CanonicalEmailBlock.matching_email(params[:email])
+  end
+
+  def set_canonical_email_block
+    @canonical_email_block = CanonicalEmailBlock.find(params[:id])
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    api_v1_admin_canonical_email_blocks_url(pagination_params(max_id: pagination_max_id)) if records_continue?
+  end
+
+  def prev_path
+    api_v1_admin_canonical_email_blocks_url(pagination_params(min_id: pagination_since_id)) unless @canonical_email_blocks.empty?
+  end
+
+  def pagination_max_id
+    @canonical_email_blocks.last.id
+  end
+
+  def pagination_since_id
+    @canonical_email_blocks.first.id
+  end
+
+  def records_continue?
+    @canonical_email_blocks.size == limit_param(LIMIT)
+  end
+
+  def pagination_params(core_params)
+    params.slice(*PAGINATION_PARAMS).permit(*PAGINATION_PARAMS).merge(core_params)
+  end
+end
diff --git a/app/controllers/api/v1/admin/domain_allows_controller.rb b/app/controllers/api/v1/admin/domain_allows_controller.rb
index 59aa807d6..0658199f0 100644
--- a/app/controllers/api/v1/admin/domain_allows_controller.rb
+++ b/app/controllers/api/v1/admin/domain_allows_controller.rb
@@ -43,7 +43,7 @@ class Api::V1::Admin::DomainAllowsController < Api::BaseController
     authorize @domain_allow, :destroy?
     UnallowDomainService.new.call(@domain_allow)
     log_action :destroy, @domain_allow
-    render json: @domain_allow, serializer: REST::Admin::DomainAllowSerializer
+    render_empty
   end
 
   private
diff --git a/app/controllers/api/v1/admin/domain_blocks_controller.rb b/app/controllers/api/v1/admin/domain_blocks_controller.rb
index de8fd9d08..df5b1b3fc 100644
--- a/app/controllers/api/v1/admin/domain_blocks_controller.rb
+++ b/app/controllers/api/v1/admin/domain_blocks_controller.rb
@@ -40,7 +40,6 @@ class Api::V1::Admin::DomainBlocksController < Api::BaseController
 
   def update
     authorize @domain_block, :update?
-
     @domain_block.update(domain_block_params)
     severity_changed = @domain_block.severity_changed?
     @domain_block.save!
@@ -53,7 +52,7 @@ class Api::V1::Admin::DomainBlocksController < Api::BaseController
     authorize @domain_block, :destroy?
     UnblockDomainService.new.call(@domain_block)
     log_action :destroy, @domain_block
-    render json: @domain_block, serializer: REST::Admin::DomainBlockSerializer
+    render_empty
   end
 
   private
diff --git a/app/controllers/api/v1/admin/email_domain_blocks_controller.rb b/app/controllers/api/v1/admin/email_domain_blocks_controller.rb
new file mode 100644
index 000000000..e53d0b157
--- /dev/null
+++ b/app/controllers/api/v1/admin/email_domain_blocks_controller.rb
@@ -0,0 +1,88 @@
+# frozen_string_literal: true
+
+class Api::V1::Admin::EmailDomainBlocksController < Api::BaseController
+  include Authorization
+  include AccountableConcern
+
+  LIMIT = 100
+
+  before_action -> { authorize_if_got_token! :'admin:read', :'admin:read:email_domain_blocks' }, only: [:index, :show]
+  before_action -> { authorize_if_got_token! :'admin:write', :'admin:write:email_domain_blocks' }, except: [:index, :show]
+  before_action :set_email_domain_blocks, only: :index
+  before_action :set_email_domain_block, only: [:show, :destroy]
+
+  after_action :verify_authorized
+  after_action :insert_pagination_headers, only: :index
+
+  PAGINATION_PARAMS = %i(
+    limit
+  ).freeze
+
+  def create
+    authorize :email_domain_block, :create?
+
+    @email_domain_block = EmailDomainBlock.create!(resource_params)
+    log_action :create, @email_domain_block
+
+    render json: @email_domain_block, serializer: REST::Admin::EmailDomainBlockSerializer
+  end
+
+  def index
+    authorize :email_domain_block, :index?
+    render json: @email_domain_blocks, each_serializer: REST::Admin::EmailDomainBlockSerializer
+  end
+
+  def show
+    authorize @email_domain_block, :show?
+    render json: @email_domain_block, serializer: REST::Admin::EmailDomainBlockSerializer
+  end
+
+  def destroy
+    authorize @email_domain_block, :destroy?
+    @email_domain_block.destroy!
+    log_action :destroy, @email_domain_block
+    render_empty
+  end
+
+  private
+
+  def set_email_domain_blocks
+    @email_domain_blocks = EmailDomainBlock.order(id: :desc).to_a_paginated_by_id(limit_param(LIMIT), params_slice(:max_id, :since_id, :min_id))
+  end
+
+  def set_email_domain_block
+    @email_domain_block = EmailDomainBlock.find(params[:id])
+  end
+
+  def resource_params
+    params.permit(:domain)
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    api_v1_admin_email_domain_blocks_url(pagination_params(max_id: pagination_max_id)) if records_continue?
+  end
+
+  def prev_path
+    api_v1_admin_email_domain_blocks_url(pagination_params(min_id: pagination_since_id)) unless @email_domain_blocks.empty?
+  end
+
+  def pagination_max_id
+    @email_domain_blocks.last.id
+  end
+
+  def pagination_since_id
+    @email_domain_blocks.first.id
+  end
+
+  def records_continue?
+    @email_domain_blocks.size == limit_param(LIMIT)
+  end
+
+  def pagination_params(core_params)
+    params.slice(*PAGINATION_PARAMS).permit(*PAGINATION_PARAMS).merge(core_params)
+  end
+end
diff --git a/app/controllers/api/v1/admin/ip_blocks_controller.rb b/app/controllers/api/v1/admin/ip_blocks_controller.rb
new file mode 100644
index 000000000..201ab6b1f
--- /dev/null
+++ b/app/controllers/api/v1/admin/ip_blocks_controller.rb
@@ -0,0 +1,93 @@
+# frozen_string_literal: true
+
+class Api::V1::Admin::IpBlocksController < Api::BaseController
+  include Authorization
+  include AccountableConcern
+
+  LIMIT = 100
+
+  before_action -> { authorize_if_got_token! :'admin:read', :'admin:read:ip_blocks' }, only: [:index, :show]
+  before_action -> { authorize_if_got_token! :'admin:write', :'admin:write:ip_blocks' }, except: [:index, :show]
+  before_action :set_ip_blocks, only: :index
+  before_action :set_ip_block, only: [:show, :update, :destroy]
+
+  after_action :verify_authorized
+  after_action :insert_pagination_headers, only: :index
+
+  PAGINATION_PARAMS = %i(
+    limit
+  ).freeze
+
+  def create
+    authorize :ip_block, :create?
+    @ip_block = IpBlock.create!(resource_params)
+    log_action :create, @ip_block
+    render json: @ip_block, serializer: REST::Admin::IpBlockSerializer
+  end
+
+  def index
+    authorize :ip_block, :index?
+    render json: @ip_blocks, each_serializer: REST::Admin::IpBlockSerializer
+  end
+
+  def show
+    authorize @ip_block, :show?
+    render json: @ip_block, serializer: REST::Admin::IpBlockSerializer
+  end
+
+  def update
+    authorize @ip_block, :update?
+    @ip_block.update(resource_params)
+    log_action :update, @ip_block
+    render json: @ip_block, serializer: REST::Admin::IpBlockSerializer
+  end
+
+  def destroy
+    authorize @ip_block, :destroy?
+    @ip_block.destroy!
+    log_action :destroy, @ip_block
+    render_empty
+  end
+
+  private
+
+  def set_ip_blocks
+    @ip_blocks = IpBlock.order(id: :desc).to_a_paginated_by_id(limit_param(LIMIT), params_slice(:max_id, :since_id, :min_id))
+  end
+
+  def set_ip_block
+    @ip_block = IpBlock.find(params[:id])
+  end
+
+  def resource_params
+    params.permit(:ip, :severity, :comment, :expires_in)
+  end
+
+  def insert_pagination_headers
+    set_pagination_headers(next_path, prev_path)
+  end
+
+  def next_path
+    api_v1_admin_ip_blocks_url(pagination_params(max_id: pagination_max_id)) if records_continue?
+  end
+
+  def prev_path
+    api_v1_admin_ip_blocks_url(pagination_params(min_id: pagination_since_id)) unless @ip_blocks.empty?
+  end
+
+  def pagination_max_id
+    @ip_blocks.last.id
+  end
+
+  def pagination_since_id
+    @ip_blocks.first.id
+  end
+
+  def records_continue?
+    @ip_blocks.size == limit_param(LIMIT)
+  end
+
+  def pagination_params(core_params)
+    params.slice(*PAGINATION_PARAMS).permit(*PAGINATION_PARAMS).merge(core_params)
+  end
+end
diff --git a/app/controllers/api/v1/featured_tags_controller.rb b/app/controllers/api/v1/featured_tags_controller.rb
index c1ead4f54..edb42a94e 100644
--- a/app/controllers/api/v1/featured_tags_controller.rb
+++ b/app/controllers/api/v1/featured_tags_controller.rb
@@ -13,12 +13,12 @@ class Api::V1::FeaturedTagsController < Api::BaseController
   end
 
   def create
-    @featured_tag = current_account.featured_tags.create!(featured_tag_params)
-    render json: @featured_tag, serializer: REST::FeaturedTagSerializer
+    featured_tag = CreateFeaturedTagService.new.call(current_account, featured_tag_params[:name])
+    render json: featured_tag, serializer: REST::FeaturedTagSerializer
   end
 
   def destroy
-    @featured_tag.destroy!
+    RemoveFeaturedTagWorker.perform_async(current_account.id, @featured_tag.id)
     render_empty
   end
 
diff --git a/app/controllers/api/v1/filters_controller.rb b/app/controllers/api/v1/filters_controller.rb
index 07cd14147..149139b40 100644
--- a/app/controllers/api/v1/filters_controller.rb
+++ b/app/controllers/api/v1/filters_controller.rb
@@ -52,7 +52,7 @@ class Api::V1::FiltersController < Api::BaseController
   end
 
   def resource_params
-    params.permit(:phrase, :expires_in, :irreversible, :whole_word, context: [])
+    params.permit(:phrase, :expires_in, :irreversible, context: [])
   end
 
   def filter_params
diff --git a/app/controllers/api/v1/instances/domain_blocks_controller.rb b/app/controllers/api/v1/instances/domain_blocks_controller.rb
new file mode 100644
index 000000000..37a6906fb
--- /dev/null
+++ b/app/controllers/api/v1/instances/domain_blocks_controller.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Api::V1::Instances::DomainBlocksController < Api::BaseController
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+
+  before_action :require_enabled_api!
+  before_action :set_domain_blocks
+
+  def index
+    expires_in 3.minutes, public: true
+    render json: @domain_blocks, each_serializer: REST::DomainBlockSerializer, with_comment: (Setting.show_domain_blocks_rationale == 'all' || (Setting.show_domain_blocks_rationale == 'users' && user_signed_in?))
+  end
+
+  private
+
+  def require_enabled_api!
+    head 404 unless Setting.show_domain_blocks == 'all' || (Setting.show_domain_blocks == 'users' && user_signed_in?)
+  end
+
+  def set_domain_blocks
+    @domain_blocks = DomainBlock.with_user_facing_limitations.by_severity
+  end
+end
diff --git a/app/controllers/api/v1/instances/extended_descriptions_controller.rb b/app/controllers/api/v1/instances/extended_descriptions_controller.rb
new file mode 100644
index 000000000..c72e16cff
--- /dev/null
+++ b/app/controllers/api/v1/instances/extended_descriptions_controller.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Api::V1::Instances::ExtendedDescriptionsController < Api::BaseController
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+
+  before_action :set_extended_description
+
+  def show
+    expires_in 3.minutes, public: true
+    render json: @extended_description, serializer: REST::ExtendedDescriptionSerializer
+  end
+
+  private
+
+  def set_extended_description
+    @extended_description = ExtendedDescription.current
+  end
+end
diff --git a/app/controllers/api/v1/instances/privacy_policies_controller.rb b/app/controllers/api/v1/instances/privacy_policies_controller.rb
new file mode 100644
index 000000000..dbd69f54d
--- /dev/null
+++ b/app/controllers/api/v1/instances/privacy_policies_controller.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Api::V1::Instances::PrivacyPoliciesController < Api::BaseController
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+
+  before_action :set_privacy_policy
+
+  def show
+    expires_in 1.day, public: true
+    render json: @privacy_policy, serializer: REST::PrivacyPolicySerializer
+  end
+
+  private
+
+  def set_privacy_policy
+    @privacy_policy = PrivacyPolicy.current
+  end
+end
diff --git a/app/controllers/api/v1/instances_controller.rb b/app/controllers/api/v1/instances_controller.rb
index 5b5058a7b..913319a86 100644
--- a/app/controllers/api/v1/instances_controller.rb
+++ b/app/controllers/api/v1/instances_controller.rb
@@ -6,6 +6,6 @@ class Api::V1::InstancesController < Api::BaseController
 
   def show
     expires_in 3.minutes, public: true
-    render_with_cache json: {}, serializer: REST::InstanceSerializer, root: 'instance'
+    render_with_cache json: InstancePresenter.new, serializer: REST::V1::InstanceSerializer, root: 'instance'
   end
 end
diff --git a/app/controllers/api/v1/lists_controller.rb b/app/controllers/api/v1/lists_controller.rb
index e5ac45fef..843ca2ec2 100644
--- a/app/controllers/api/v1/lists_controller.rb
+++ b/app/controllers/api/v1/lists_controller.rb
@@ -7,6 +7,10 @@ class Api::V1::ListsController < Api::BaseController
   before_action :require_user!
   before_action :set_list, except: [:index, :create]
 
+  rescue_from ArgumentError do |e|
+    render json: { error: e.to_s }, status: 422
+  end
+
   def index
     @lists = List.where(account: current_account).all
     render json: @lists, each_serializer: REST::ListSerializer
diff --git a/app/controllers/api/v1/statuses/translations_controller.rb b/app/controllers/api/v1/statuses/translations_controller.rb
new file mode 100644
index 000000000..540b17d00
--- /dev/null
+++ b/app/controllers/api/v1/statuses/translations_controller.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class Api::V1::Statuses::TranslationsController < Api::BaseController
+  include Authorization
+
+  before_action -> { doorkeeper_authorize! :read, :'read:statuses' }
+  before_action :set_status
+  before_action :set_translation
+
+  rescue_from TranslationService::NotConfiguredError, with: :not_found
+  rescue_from TranslationService::UnexpectedResponseError, TranslationService::QuotaExceededError, TranslationService::TooManyRequestsError, with: :service_unavailable
+
+  def create
+    render json: @translation, serializer: REST::TranslationSerializer
+  end
+
+  private
+
+  def set_status
+    @status = Status.find(params[:status_id])
+    authorize @status, :show?
+  rescue Mastodon::NotPermittedError
+    not_found
+  end
+
+  def set_translation
+    @translation = TranslateStatusService.new.call(@status, content_locale)
+  end
+end
diff --git a/app/controllers/api/v1/statuses_controller.rb b/app/controllers/api/v1/statuses_controller.rb
index b2cee3e92..26ef7087a 100644
--- a/app/controllers/api/v1/statuses_controller.rb
+++ b/app/controllers/api/v1/statuses_controller.rb
@@ -66,6 +66,7 @@ class Api::V1::StatusesController < Api::BaseController
       text: status_params[:status],
       media_ids: status_params[:media_ids],
       sensitive: status_params[:sensitive],
+      language: status_params[:language],
       spoiler_text: status_params[:spoiler_text],
       poll: status_params[:poll],
       content_type: status_params[:content_type]
@@ -78,7 +79,8 @@ class Api::V1::StatusesController < Api::BaseController
     @status = Status.where(account: current_account).find(params[:id])
     authorize @status, :destroy?
 
-    @status.discard
+    @status.discard_with_reblogs
+    StatusPin.find_by(status: @status)&.destroy
     @status.account.statuses_count = @status.account.statuses_count - 1
     json = render_to_body json: @status, serializer: REST::StatusSerializer, source_requested: true
 
diff --git a/app/controllers/api/v1/tags_controller.rb b/app/controllers/api/v1/tags_controller.rb
index 9e5c53330..32f71bdce 100644
--- a/app/controllers/api/v1/tags_controller.rb
+++ b/app/controllers/api/v1/tags_controller.rb
@@ -24,7 +24,7 @@ class Api::V1::TagsController < Api::BaseController
   private
 
   def set_or_create_tag
-    return not_found unless /\A(#{Tag::HASHTAG_NAME_RE})\z/.match?(params[:id])
+    return not_found unless Tag::HASHTAG_NAME_RE.match?(params[:id])
     @tag = Tag.find_normalized(params[:id]) || Tag.new(name: Tag.normalize(params[:id]), display_name: params[:id])
   end
 end
diff --git a/app/controllers/api/v1/trends/links_controller.rb b/app/controllers/api/v1/trends/links_controller.rb
index 1a9f918f2..8ff3b364e 100644
--- a/app/controllers/api/v1/trends/links_controller.rb
+++ b/app/controllers/api/v1/trends/links_controller.rb
@@ -28,7 +28,9 @@ class Api::V1::Trends::LinksController < Api::BaseController
   end
 
   def links_from_trends
-    Trends.links.query.allowed.in_locale(content_locale)
+    scope = Trends.links.query.allowed.in_locale(content_locale)
+    scope = scope.filtered_for(current_account) if user_signed_in?
+    scope
   end
 
   def insert_pagination_headers
diff --git a/app/controllers/api/v1/trends/tags_controller.rb b/app/controllers/api/v1/trends/tags_controller.rb
index 21adfa2a1..885a4ad7e 100644
--- a/app/controllers/api/v1/trends/tags_controller.rb
+++ b/app/controllers/api/v1/trends/tags_controller.rb
@@ -5,7 +5,7 @@ class Api::V1::Trends::TagsController < Api::BaseController
 
   after_action :insert_pagination_headers
 
-  DEFAULT_TAGS_LIMIT = 10
+  DEFAULT_TAGS_LIMIT = (ENV['MAX_TRENDING_TAGS'] || 10).to_i
 
   def index
     render json: @tags, each_serializer: REST::TagSerializer, relationships: TagRelationshipsPresenter.new(@tags, current_user&.account_id)
diff --git a/app/controllers/api/v2/instances_controller.rb b/app/controllers/api/v2/instances_controller.rb
new file mode 100644
index 000000000..bcd90cff2
--- /dev/null
+++ b/app/controllers/api/v2/instances_controller.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+class Api::V2::InstancesController < Api::V1::InstancesController
+  def show
+    expires_in 3.minutes, public: true
+    render_with_cache json: InstancePresenter.new, serializer: REST::InstanceSerializer, root: 'instance'
+  end
+end
diff --git a/app/controllers/api/v2/media_controller.rb b/app/controllers/api/v2/media_controller.rb
index 0c1baf01d..288f847f1 100644
--- a/app/controllers/api/v2/media_controller.rb
+++ b/app/controllers/api/v2/media_controller.rb
@@ -3,7 +3,7 @@
 class Api::V2::MediaController < Api::V1::MediaController
   def create
     @media_attachment = current_account.media_attachments.create!({ delay_processing: true }.merge(media_attachment_params))
-    render json: @media_attachment, serializer: REST::MediaAttachmentSerializer, status: 202
+    render json: @media_attachment, serializer: REST::MediaAttachmentSerializer, status: @media_attachment.not_processed? ? 202 : 200
   rescue Paperclip::Errors::NotIdentifiedByImageMagickError
     render json: file_type_error, status: 422
   rescue Paperclip::Error
diff --git a/app/controllers/api/v2/search_controller.rb b/app/controllers/api/v2/search_controller.rb
index 77eeab5b0..b084eae42 100644
--- a/app/controllers/api/v2/search_controller.rb
+++ b/app/controllers/api/v2/search_controller.rb
@@ -5,8 +5,8 @@ class Api::V2::SearchController < Api::BaseController
 
   RESULTS_LIMIT = (ENV['MAX_SEARCH_RESULTS'] || 20).to_i
 
-  before_action -> { doorkeeper_authorize! :read, :'read:search' }
-  before_action :require_user!
+  before_action -> { authorize_if_got_token! :read, :'read:search' }
+  before_action :validate_search_params!
 
   def index
     @search = Search.new(search_results)
@@ -19,6 +19,16 @@ class Api::V2::SearchController < Api::BaseController
 
   private
 
+  def validate_search_params!
+    params.require(:q)
+
+    return if user_signed_in?
+
+    return render json: { error: 'Search queries pagination is not supported without authentication' }, status: 401 if params[:offset].present?
+
+    render json: { error: 'Search queries that resolve remote resources are not supported without authentication' }, status: 401 if truthy_param?(:resolve)
+  end
+
   def search_results
     SearchService.new.call(
       params[:q],
diff --git a/app/controllers/auth/omniauth_callbacks_controller.rb b/app/controllers/auth/omniauth_callbacks_controller.rb
index f9cf6d655..3d7962de5 100644
--- a/app/controllers/auth/omniauth_callbacks_controller.rb
+++ b/app/controllers/auth/omniauth_callbacks_controller.rb
@@ -18,7 +18,8 @@ class Auth::OmniauthCallbacksController < Devise::OmniauthCallbacksController
         )
 
         sign_in_and_redirect @user, event: :authentication
-        set_flash_message(:notice, :success, kind: Devise.omniauth_configs[provider].strategy.display_name.capitalize) if is_navigational_format?
+        label = Devise.omniauth_configs[provider]&.strategy&.display_name.presence || I18n.t("auth.providers.#{provider}", default: provider.to_s.chomp('_oauth2').capitalize)
+        set_flash_message(:notice, :success, kind: label) if is_navigational_format?
       else
         session["devise.#{provider}_data"] = request.env['omniauth.auth']
         redirect_to new_user_registration_url
diff --git a/app/controllers/auth/registrations_controller.rb b/app/controllers/auth/registrations_controller.rb
index 486edcdcb..edef0d5bb 100644
--- a/app/controllers/auth/registrations_controller.rb
+++ b/app/controllers/auth/registrations_controller.rb
@@ -15,6 +15,8 @@ class Auth::RegistrationsController < Devise::RegistrationsController
   before_action :set_body_classes, only: [:new, :create, :edit, :update]
   before_action :require_not_suspended!, only: [:update]
   before_action :set_cache_headers, only: [:edit, :update]
+  before_action :set_rules, only: :new
+  before_action :require_rules_acceptance!, only: :new
   before_action :set_registration_form_time, only: :new
 
   skip_before_action :require_functional!, only: [:edit, :update]
@@ -56,7 +58,7 @@ class Auth::RegistrationsController < Devise::RegistrationsController
 
   def configure_sign_up_params
     devise_parameter_sanitizer.permit(:sign_up) do |u|
-      u.permit({ account_attributes: [:username], invite_request_attributes: [:text] }, :email, :password, :password_confirmation, :invite_code, :agreement, :website, :confirm_password)
+      u.permit({ account_attributes: [:username, :display_name], invite_request_attributes: [:text] }, :email, :password, :password_confirmation, :invite_code, :agreement, :website, :confirm_password)
     end
   end
 
@@ -143,6 +145,19 @@ class Auth::RegistrationsController < Devise::RegistrationsController
     forbidden if current_account.suspended?
   end
 
+  def set_rules
+    @rules = Rule.ordered
+  end
+
+  def require_rules_acceptance!
+    return if @rules.empty? || (session[:accept_token].present? && params[:accept] == session[:accept_token])
+
+    @accept_token = session[:accept_token] = SecureRandom.hex
+    @invite_code  = invite_code
+
+    set_locale { render :rules }
+  end
+
   def set_cache_headers
     response.headers['Cache-Control'] = 'no-cache, no-store, max-age=0, must-revalidate'
   end
diff --git a/app/controllers/concerns/account_controller_concern.rb b/app/controllers/concerns/account_controller_concern.rb
index 11eac0eb6..2f7d84df0 100644
--- a/app/controllers/concerns/account_controller_concern.rb
+++ b/app/controllers/concerns/account_controller_concern.rb
@@ -3,13 +3,12 @@
 module AccountControllerConcern
   extend ActiveSupport::Concern
 
+  include WebAppControllerConcern
   include AccountOwnedConcern
 
   FOLLOW_PER_PAGE = 12
 
   included do
-    layout 'public'
-
     before_action :set_instance_presenter
     before_action :set_link_headers, if: -> { request.format.nil? || request.format == :html }
   end
diff --git a/app/controllers/concerns/accountable_concern.rb b/app/controllers/concerns/accountable_concern.rb
index 87d62478d..c1349915f 100644
--- a/app/controllers/concerns/accountable_concern.rb
+++ b/app/controllers/concerns/accountable_concern.rb
@@ -3,7 +3,11 @@
 module AccountableConcern
   extend ActiveSupport::Concern
 
-  def log_action(action, target, options = {})
-    Admin::ActionLog.create(account: current_account, action: action, target: target, recorded_changes: options.stringify_keys)
+  def log_action(action, target)
+    Admin::ActionLog.create(
+      account: current_account,
+      action: action,
+      target: target
+    )
   end
 end
diff --git a/app/controllers/concerns/signature_verification.rb b/app/controllers/concerns/signature_verification.rb
index 4dd0cac55..2394574b3 100644
--- a/app/controllers/concerns/signature_verification.rb
+++ b/app/controllers/concerns/signature_verification.rb
@@ -45,10 +45,14 @@ module SignatureVerification
     end
   end
 
-  def require_signature!
+  def require_account_signature!
     render plain: signature_verification_failure_reason, status: signature_verification_failure_code unless signed_request_account
   end
 
+  def require_actor_signature!
+    render plain: signature_verification_failure_reason, status: signature_verification_failure_code unless signed_request_actor
+  end
+
   def signed_request?
     request.headers['Signature'].present?
   end
@@ -68,7 +72,11 @@ module SignatureVerification
   end
 
   def signed_request_account
-    return @signed_request_account if defined?(@signed_request_account)
+    signed_request_actor.is_a?(Account) ? signed_request_actor : nil
+  end
+
+  def signed_request_actor
+    return @signed_request_actor if defined?(@signed_request_actor)
 
     raise SignatureVerificationError, 'Request not signed' unless signed_request?
     raise SignatureVerificationError, 'Incompatible request signature. keyId and signature are required' if missing_required_signature_parameters?
@@ -78,26 +86,30 @@ module SignatureVerification
     verify_signature_strength!
     verify_body_digest!
 
-    account = account_from_key_id(signature_params['keyId'])
+    actor = actor_from_key_id(signature_params['keyId'])
 
-    raise SignatureVerificationError, "Public key not found for key #{signature_params['keyId']}" if account.nil?
+    raise SignatureVerificationError, "Public key not found for key #{signature_params['keyId']}" if actor.nil?
 
     signature             = Base64.decode64(signature_params['signature'])
     compare_signed_string = build_signed_string
 
-    return account unless verify_signature(account, signature, compare_signed_string).nil?
+    return actor unless verify_signature(actor, signature, compare_signed_string).nil?
 
-    account = stoplight_wrap_request { account.possibly_stale? ? account.refresh! : account_refresh_key(account) }
+    actor = stoplight_wrap_request { actor_refresh_key!(actor) }
 
-    raise SignatureVerificationError, "Public key not found for key #{signature_params['keyId']}" if account.nil?
+    raise SignatureVerificationError, "Public key not found for key #{signature_params['keyId']}" if actor.nil?
 
-    return account unless verify_signature(account, signature, compare_signed_string).nil?
+    return actor unless verify_signature(actor, signature, compare_signed_string).nil?
 
-    @signature_verification_failure_reason = "Verification failed for #{account.username}@#{account.domain} #{account.uri} using rsa-sha256 (RSASSA-PKCS1-v1_5 with SHA-256)"
-    @signed_request_account = nil
+    fail_with! "Verification failed for #{actor.to_log_human_identifier} #{actor.uri} using rsa-sha256 (RSASSA-PKCS1-v1_5 with SHA-256)"
   rescue SignatureVerificationError => e
-    @signature_verification_failure_reason = e.message
-    @signed_request_account = nil
+    fail_with! e.message
+  rescue HTTP::Error, OpenSSL::SSL::SSLError => e
+    fail_with! "Failed to fetch remote data: #{e.message}"
+  rescue Mastodon::UnexpectedResponseError
+    fail_with! 'Failed to fetch remote data (got unexpected reply from server)'
+  rescue Stoplight::Error::RedLight
+    fail_with! 'Fetching attempt skipped because of recent connection failure'
   end
 
   def request_body
@@ -106,6 +118,11 @@ module SignatureVerification
 
   private
 
+  def fail_with!(message)
+    @signature_verification_failure_reason = message
+    @signed_request_actor = nil
+  end
+
   def signature_params
     @signature_params ||= begin
       raw_signature = request.headers['Signature']
@@ -138,13 +155,23 @@ module SignatureVerification
     digests = request.headers['Digest'].split(',').map { |digest| digest.split('=', 2) }.map { |key, value| [key.downcase, value] }
     sha256  = digests.assoc('sha-256')
     raise SignatureVerificationError, "Mastodon only supports SHA-256 in Digest header. Offered algorithms: #{digests.map(&:first).join(', ')}" if sha256.nil?
-    raise SignatureVerificationError, "Invalid Digest value. Computed SHA-256 digest: #{body_digest}; given: #{sha256[1]}" if body_digest != sha256[1]
+
+    return if body_digest == sha256[1]
+
+    digest_size = begin
+      Base64.strict_decode64(sha256[1].strip).length
+    rescue ArgumentError
+      raise SignatureVerificationError, "Invalid Digest value. The provided Digest value is not a valid base64 string. Given digest: #{sha256[1]}"
+    end
+
+    raise SignatureVerificationError, "Invalid Digest value. The provided Digest value is not a SHA-256 digest. Given digest: #{sha256[1]}" if digest_size != 32
+    raise SignatureVerificationError, "Invalid Digest value. Computed SHA-256 digest: #{body_digest}; given: #{sha256[1]}"
   end
 
-  def verify_signature(account, signature, compare_signed_string)
-    if account.keypair.public_key.verify(OpenSSL::Digest.new('SHA256'), signature, compare_signed_string)
-      @signed_request_account = account
-      @signed_request_account
+  def verify_signature(actor, signature, compare_signed_string)
+    if actor.keypair.public_key.verify(OpenSSL::Digest.new('SHA256'), signature, compare_signed_string)
+      @signed_request_actor = actor
+      @signed_request_actor
     end
   rescue OpenSSL::PKey::RSAError
     nil
@@ -207,7 +234,7 @@ module SignatureVerification
     signature_params['keyId'].blank? || signature_params['signature'].blank?
   end
 
-  def account_from_key_id(key_id)
+  def actor_from_key_id(key_id)
     domain = key_id.start_with?('acct:') ? key_id.split('@').last : key_id
 
     if domain_not_allowed?(domain)
@@ -216,27 +243,34 @@ module SignatureVerification
     end
 
     if key_id.start_with?('acct:')
-      stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, '')) }
+      stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, ''), suppress_errors: false) }
     elsif !ActivityPub::TagManager.instance.local_uri?(key_id)
-      account   = ActivityPub::TagManager.instance.uri_to_resource(key_id, Account)
-      account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, id: false) }
+      account   = ActivityPub::TagManager.instance.uri_to_actor(key_id)
+      account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, id: false, suppress_errors: false) }
       account
     end
-  rescue Mastodon::HostValidationError
-    nil
+  rescue Mastodon::PrivateNetworkAddressError => e
+    raise SignatureVerificationError, "Requests to private network addresses are disallowed (tried to query #{e.host})"
+  rescue Mastodon::HostValidationError, ActivityPub::FetchRemoteActorService::Error, ActivityPub::FetchRemoteKeyService::Error, Webfinger::Error => e
+    raise SignatureVerificationError, e.message
   end
 
   def stoplight_wrap_request(&block)
     Stoplight("source:#{request.remote_ip}", &block)
-      .with_fallback { nil }
       .with_threshold(1)
       .with_cool_off_time(5.minutes.seconds)
       .with_error_handler { |error, handle| error.is_a?(HTTP::Error) || error.is_a?(OpenSSL::SSL::SSLError) ? handle.call(error) : raise(error) }
       .run
   end
 
-  def account_refresh_key(account)
-    return if account.local? || !account.activitypub?
-    ActivityPub::FetchRemoteAccountService.new.call(account.uri, only_key: true)
+  def actor_refresh_key!(actor)
+    return if actor.local? || !actor.activitypub?
+    return actor.refresh! if actor.respond_to?(:refresh!) && actor.possibly_stale?
+
+    ActivityPub::FetchRemoteActorService.new.call(actor.uri, only_key: true, suppress_errors: false)
+  rescue Mastodon::PrivateNetworkAddressError => e
+    raise SignatureVerificationError, "Requests to private network addresses are disallowed (tried to query #{e.host})"
+  rescue Mastodon::HostValidationError, ActivityPub::FetchRemoteActorService::Error, Webfinger::Error => e
+    raise SignatureVerificationError, e.message
   end
 end
diff --git a/app/controllers/concerns/web_app_controller_concern.rb b/app/controllers/concerns/web_app_controller_concern.rb
new file mode 100644
index 000000000..b6050c913
--- /dev/null
+++ b/app/controllers/concerns/web_app_controller_concern.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+module WebAppControllerConcern
+  extend ActiveSupport::Concern
+
+  included do
+    before_action :set_pack
+    before_action :redirect_unauthenticated_to_permalinks!
+    before_action :set_app_body_class
+    before_action :set_referrer_policy_header
+  end
+
+  def set_app_body_class
+    @body_classes = 'app-body'
+  end
+
+  def set_referrer_policy_header
+    response.headers['Referrer-Policy'] = 'origin'
+  end
+
+  def redirect_unauthenticated_to_permalinks!
+    return if user_signed_in?
+
+    redirect_path = PermalinkRedirector.new(request.path).redirect_path
+
+    redirect_to(redirect_path) if redirect_path.present?
+  end
+
+  def set_pack
+    use_pack 'home'
+  end
+end
diff --git a/app/controllers/directories_controller.rb b/app/controllers/directories_controller.rb
deleted file mode 100644
index 2263f286b..000000000
--- a/app/controllers/directories_controller.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# frozen_string_literal: true
-
-class DirectoriesController < ApplicationController
-  layout 'public'
-
-  before_action :authenticate_user!, if: :whitelist_mode?
-  before_action :require_enabled!
-  before_action :set_instance_presenter
-  before_action :set_accounts
-  before_action :set_pack
-
-  skip_before_action :require_functional!, unless: :whitelist_mode?
-
-  def index
-    render :index
-  end
-
-  private
-
-  def set_pack
-    use_pack 'share'
-  end
-
-  def require_enabled!
-    return not_found unless Setting.profile_directory
-  end
-
-  def set_accounts
-    @accounts = Account.local.discoverable.by_recent_status.page(params[:page]).per(20).tap do |query|
-      query.merge!(Account.not_excluded_by_account(current_account)) if current_account
-    end
-  end
-
-  def set_instance_presenter
-    @instance_presenter = InstancePresenter.new
-  end
-end
diff --git a/app/controllers/filters/statuses_controller.rb b/app/controllers/filters/statuses_controller.rb
index cc493c22c..4f63de7b6 100644
--- a/app/controllers/filters/statuses_controller.rb
+++ b/app/controllers/filters/statuses_controller.rb
@@ -6,6 +6,7 @@ class Filters::StatusesController < ApplicationController
   before_action :authenticate_user!
   before_action :set_filter
   before_action :set_status_filters
+  before_action :set_pack
   before_action :set_body_classes
 
   PER_PAGE = 20
@@ -25,6 +26,10 @@ class Filters::StatusesController < ApplicationController
 
   private
 
+  def set_pack
+    use_pack 'admin'
+  end
+
   def set_filter
     @filter = current_account.custom_filters.find(params[:filter_id])
   end
diff --git a/app/controllers/follower_accounts_controller.rb b/app/controllers/follower_accounts_controller.rb
index f898994ac..35ce31f80 100644
--- a/app/controllers/follower_accounts_controller.rb
+++ b/app/controllers/follower_accounts_controller.rb
@@ -3,8 +3,9 @@
 class FollowerAccountsController < ApplicationController
   include AccountControllerConcern
   include SignatureVerification
+  include WebAppControllerConcern
 
-  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
+  before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :set_cache_headers
 
   skip_around_action :set_locale, if: -> { request.format == :json }
@@ -13,12 +14,7 @@ class FollowerAccountsController < ApplicationController
   def index
     respond_to do |format|
       format.html do
-        use_pack 'public'
         expires_in 0, public: true unless user_signed_in?
-
-        next if @account.hide_collections?
-
-        follows
       end
 
       format.json do
diff --git a/app/controllers/following_accounts_controller.rb b/app/controllers/following_accounts_controller.rb
index 11c6b6d50..f84dca1e5 100644
--- a/app/controllers/following_accounts_controller.rb
+++ b/app/controllers/following_accounts_controller.rb
@@ -3,8 +3,9 @@
 class FollowingAccountsController < ApplicationController
   include AccountControllerConcern
   include SignatureVerification
+  include WebAppControllerConcern
 
-  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
+  before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :set_cache_headers
 
   skip_around_action :set_locale, if: -> { request.format == :json }
@@ -13,12 +14,7 @@ class FollowingAccountsController < ApplicationController
   def index
     respond_to do |format|
       format.html do
-        use_pack 'public'
         expires_in 0, public: true unless user_signed_in?
-
-        next if @account.hide_collections?
-
-        follows
       end
 
       format.json do
diff --git a/app/controllers/home_controller.rb b/app/controllers/home_controller.rb
index 450f92bd4..d8ee82a7a 100644
--- a/app/controllers/home_controller.rb
+++ b/app/controllers/home_controller.rb
@@ -1,39 +1,17 @@
 # frozen_string_literal: true
 
 class HomeController < ApplicationController
-  before_action :redirect_unauthenticated_to_permalinks!
-  before_action :authenticate_user!
+  include WebAppControllerConcern
 
-  before_action :set_pack
-  before_action :set_referrer_policy_header
+  before_action :set_instance_presenter
 
   def index
-    @body_classes = 'app-body'
+    expires_in 0, public: true unless user_signed_in?
   end
 
   private
 
-  def redirect_unauthenticated_to_permalinks!
-    return if user_signed_in?
-
-    redirect_to(PermalinkRedirector.new(request.path).redirect_path || default_redirect_path)
-  end
-
-  def set_pack
-    use_pack 'home'
-  end
-
-  def default_redirect_path
-    if request.path.start_with?('/web') || whitelist_mode?
-      new_user_session_path
-    elsif single_user_mode?
-      short_account_path(Account.local.without_suspended.where('id > 0').first)
-    else
-      about_path
-    end
-  end
-
-  def set_referrer_policy_header
-    response.headers['Referrer-Policy'] = 'origin'
+  def set_instance_presenter
+    @instance_presenter = InstancePresenter.new
   end
 end
diff --git a/app/controllers/privacy_controller.rb b/app/controllers/privacy_controller.rb
new file mode 100644
index 000000000..2c98bf3bf
--- /dev/null
+++ b/app/controllers/privacy_controller.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class PrivacyController < ApplicationController
+  include WebAppControllerConcern
+
+  skip_before_action :require_functional!
+
+  before_action :set_instance_presenter
+
+  def show
+    expires_in 0, public: true if current_account.nil?
+  end
+
+  private
+
+  def set_instance_presenter
+    @instance_presenter = InstancePresenter.new
+  end
+end
diff --git a/app/controllers/public_timelines_controller.rb b/app/controllers/public_timelines_controller.rb
deleted file mode 100644
index eb5bb191b..000000000
--- a/app/controllers/public_timelines_controller.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# frozen_string_literal: true
-
-class PublicTimelinesController < ApplicationController
-  before_action :set_pack
-  layout 'public'
-
-  before_action :authenticate_user!, if: :whitelist_mode?
-  before_action :require_enabled!
-  before_action :set_body_classes
-  before_action :set_instance_presenter
-
-  def show; end
-
-  private
-
-  def require_enabled!
-    not_found unless Setting.timeline_preview
-  end
-
-  def set_body_classes
-    @body_classes = 'with-modals'
-  end
-
-  def set_instance_presenter
-    @instance_presenter = InstancePresenter.new
-  end
-
-  def set_pack
-    use_pack 'about'
-  end
-end
diff --git a/app/controllers/remote_follow_controller.rb b/app/controllers/remote_follow_controller.rb
deleted file mode 100644
index 93a0a7476..000000000
--- a/app/controllers/remote_follow_controller.rb
+++ /dev/null
@@ -1,46 +0,0 @@
-# frozen_string_literal: true
-
-class RemoteFollowController < ApplicationController
-  include AccountOwnedConcern
-
-  layout 'modal'
-
-  before_action :set_pack
-  before_action :set_body_classes
-
-  skip_before_action :require_functional!
-
-  def new
-    @remote_follow = RemoteFollow.new(session_params)
-  end
-
-  def create
-    @remote_follow = RemoteFollow.new(resource_params)
-
-    if @remote_follow.valid?
-      session[:remote_follow] = @remote_follow.acct
-      redirect_to @remote_follow.subscribe_address_for(@account)
-    else
-      render :new
-    end
-  end
-
-  private
-
-  def resource_params
-    params.require(:remote_follow).permit(:acct)
-  end
-
-  def session_params
-    { acct: session[:remote_follow] || current_account&.username }
-  end
-
-  def set_pack
-    use_pack 'modal'
-  end
-
-  def set_body_classes
-    @body_classes = 'modal-layout'
-    @hide_header  = true
-  end
-end
diff --git a/app/controllers/remote_interaction_controller.rb b/app/controllers/remote_interaction_controller.rb
deleted file mode 100644
index a277bfa10..000000000
--- a/app/controllers/remote_interaction_controller.rb
+++ /dev/null
@@ -1,60 +0,0 @@
-# frozen_string_literal: true
-
-class RemoteInteractionController < ApplicationController
-  include Authorization
-
-  layout 'modal'
-
-  before_action :authenticate_user!, if: :whitelist_mode?
-  before_action :set_interaction_type
-  before_action :set_status
-  before_action :set_body_classes
-  before_action :set_pack
-
-  skip_before_action :require_functional!, unless: :whitelist_mode?
-
-  def new
-    @remote_follow = RemoteFollow.new(session_params)
-  end
-
-  def create
-    @remote_follow = RemoteFollow.new(resource_params)
-
-    if @remote_follow.valid?
-      session[:remote_follow] = @remote_follow.acct
-      redirect_to @remote_follow.interact_address_for(@status)
-    else
-      render :new
-    end
-  end
-
-  private
-
-  def resource_params
-    params.require(:remote_follow).permit(:acct)
-  end
-
-  def session_params
-    { acct: session[:remote_follow] || current_account&.username }
-  end
-
-  def set_status
-    @status = Status.find(params[:id])
-    authorize @status, :show?
-  rescue Mastodon::NotPermittedError
-    not_found
-  end
-
-  def set_body_classes
-    @body_classes = 'modal-layout'
-    @hide_header  = true
-  end
-
-  def set_pack
-    use_pack 'modal'
-  end
-
-  def set_interaction_type
-    @interaction_type = %w(reply reblog favourite).include?(params[:type]) ? params[:type] : 'reply'
-  end
-end
diff --git a/app/controllers/settings/deletes_controller.rb b/app/controllers/settings/deletes_controller.rb
index e0dd5edcb..bb096567a 100644
--- a/app/controllers/settings/deletes_controller.rb
+++ b/app/controllers/settings/deletes_controller.rb
@@ -4,7 +4,6 @@ class Settings::DeletesController < Settings::BaseController
   skip_before_action :require_functional!
 
   before_action :require_not_suspended!
-  before_action :check_enabled_deletion
 
   def show
     @confirmation = Form::DeleteConfirmation.new
@@ -21,10 +20,6 @@ class Settings::DeletesController < Settings::BaseController
 
   private
 
-  def check_enabled_deletion
-    redirect_to root_path unless Setting.open_deletion
-  end
-
   def resource_params
     params.require(:form_delete_confirmation).permit(:password, :username)
   end
diff --git a/app/controllers/settings/featured_tags_controller.rb b/app/controllers/settings/featured_tags_controller.rb
index aadff7c83..c38440265 100644
--- a/app/controllers/settings/featured_tags_controller.rb
+++ b/app/controllers/settings/featured_tags_controller.rb
@@ -10,9 +10,9 @@ class Settings::FeaturedTagsController < Settings::BaseController
   end
 
   def create
-    @featured_tag = current_account.featured_tags.new(featured_tag_params)
+    @featured_tag = CreateFeaturedTagService.new.call(current_account, featured_tag_params[:name], force: false)
 
-    if @featured_tag.save
+    if @featured_tag.valid?
       redirect_to settings_featured_tags_path
     else
       set_featured_tags
@@ -23,7 +23,7 @@ class Settings::FeaturedTagsController < Settings::BaseController
   end
 
   def destroy
-    @featured_tag.destroy!
+    RemoveFeaturedTagService.new.call(current_account, @featured_tag)
     redirect_to settings_featured_tags_path
   end
 
diff --git a/app/controllers/settings/preferences_controller.rb b/app/controllers/settings/preferences_controller.rb
index 669ed00c6..4c1336436 100644
--- a/app/controllers/settings/preferences_controller.rb
+++ b/app/controllers/settings/preferences_controller.rb
@@ -58,7 +58,7 @@ class Settings::PreferencesController < Settings::BaseController
       :setting_trends,
       :setting_crop_images,
       :setting_always_send_emails,
-      notification_emails: %i(follow follow_request reblog favourite mention digest report pending_account trending_tag trending_link trending_status appeal),
+      notification_emails: %i(follow follow_request reblog favourite mention report pending_account trending_tag trending_link trending_status appeal),
       interactions: %i(must_be_follower must_be_following must_be_following_dm)
     )
   end
diff --git a/app/controllers/statuses_controller.rb b/app/controllers/statuses_controller.rb
index 3812f541e..6986176ea 100644
--- a/app/controllers/statuses_controller.rb
+++ b/app/controllers/statuses_controller.rb
@@ -1,21 +1,19 @@
 # frozen_string_literal: true
 
 class StatusesController < ApplicationController
+  include WebAppControllerConcern
   include StatusControllerConcern
   include SignatureAuthentication
   include Authorization
   include AccountOwnedConcern
 
-  layout 'public'
-
-  before_action :require_signature!, only: [:show, :activity], if: -> { request.format == :json && authorized_fetch_mode? }
+  before_action :require_account_signature!, only: [:show, :activity], if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :set_status
   before_action :set_instance_presenter
   before_action :set_link_headers
   before_action :redirect_to_original, only: :show
-  before_action :set_referrer_policy_header, only: :show
   before_action :set_cache_headers
-  before_action :set_body_classes
+  before_action :set_body_classes, only: :embed
 
   skip_around_action :set_locale, if: -> { request.format == :json }
   skip_before_action :require_functional!, only: [:show, :embed], unless: :whitelist_mode?
@@ -27,11 +25,7 @@ class StatusesController < ApplicationController
   def show
     respond_to do |format|
       format.html do
-        use_pack 'public'
-
         expires_in 10.seconds, public: true if current_account.nil?
-        set_ancestors
-        set_descendants
       end
 
       format.json do
@@ -80,8 +74,4 @@ class StatusesController < ApplicationController
   def redirect_to_original
     redirect_to ActivityPub::TagManager.instance.url_for(@status.reblog) if @status.reblog?
   end
-
-  def set_referrer_policy_header
-    response.headers['Referrer-Policy'] = 'origin' unless @status.distributable?
-  end
 end
diff --git a/app/controllers/tags_controller.rb b/app/controllers/tags_controller.rb
index 46821a200..f0a099350 100644
--- a/app/controllers/tags_controller.rb
+++ b/app/controllers/tags_controller.rb
@@ -2,18 +2,16 @@
 
 class TagsController < ApplicationController
   include SignatureVerification
+  include WebAppControllerConcern
 
   PAGE_SIZE     = 20
   PAGE_SIZE_MAX = 200
 
-  layout 'public'
-
-  before_action :require_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
+  before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
   before_action :authenticate_user!, if: :whitelist_mode?
   before_action :set_local
   before_action :set_tag
   before_action :set_statuses
-  before_action :set_body_classes
   before_action :set_instance_presenter
 
   skip_before_action :require_functional!, unless: :whitelist_mode?
@@ -21,8 +19,7 @@ class TagsController < ApplicationController
   def show
     respond_to do |format|
       format.html do
-        use_pack 'about'
-        expires_in 0, public: true
+        expires_in 0, public: true unless user_signed_in?
       end
 
       format.rss do
@@ -55,10 +52,6 @@ class TagsController < ApplicationController
     end
   end
 
-  def set_body_classes
-    @body_classes = 'with-modals'
-  end
-
   def set_instance_presenter
     @instance_presenter = InstancePresenter.new
   end