Revert "Add handler for Move activity (#9629)"

This reverts commit 0f938ff29c2e9bf92e3eb9c23be8d4ba3a1b97f7.

9 files changed, 2 insertions, 77 deletions

diff --git a/app/lib/activitypub/activity.rb b/app/lib/activitypub/activity.rb
index 87318fb1c..0a729011f 100644
--- a/app/lib/activitypub/activity.rb
+++ b/app/lib/activitypub/activity.rb
@@ -50,8 +50,6 @@ class ActivityPub::Activity
         ActivityPub::Activity::Add
       when 'Remove'
         ActivityPub::Activity::Remove
-      when 'Move'
-        ActivityPub::Activity::Move
       end
     end
   end
diff --git a/app/lib/activitypub/activity/follow.rb b/app/lib/activitypub/activity/follow.rb
index 1e805c0d1..5e703dc61 100644
--- a/app/lib/activitypub/activity/follow.rb
+++ b/app/lib/activitypub/activity/follow.rb
@@ -6,7 +6,7 @@ class ActivityPub::Activity::Follow < ActivityPub::Activity
 
     return if target_account.nil? || !target_account.local? || delete_arrived_first?(@json['id']) || @account.requested?(target_account)
 
-    if target_account.blocking?(@account) || target_account.domain_blocking?(@account.domain) || target_account.moved?
+    if target_account.blocking?(@account) || target_account.domain_blocking?(@account.domain)
       reject_follow_request!(target_account)
       return
     end
diff --git a/app/lib/activitypub/activity/move.rb b/app/lib/activitypub/activity/move.rb
deleted file mode 100644
index d7a5f595c..000000000
--- a/app/lib/activitypub/activity/move.rb
+++ /dev/null
@@ -1,43 +0,0 @@
-# frozen_string_literal: true
-
-class ActivityPub::Activity::Move < ActivityPub::Activity
-  PROCESSING_COOLDOWN = 7.days.seconds
-
-  def perform
-    return if origin_account.uri != object_uri || processed?
-
-    mark_as_processing!
-
-    target_account = ActivityPub::FetchRemoteAccountService.new.call(target_uri)
-
-    return if target_account.nil? || !target_account.also_known_as.include?(origin_account.uri)
-
-    # In case for some reason we didn't have a redirect for the profile already, set it
-    origin_account.update(moved_to_account: target_account) if origin_account.moved_to_account_id.nil?
-
-    # Initiate a re-follow for each follower
-    origin_account.followers.local.select(:id).find_in_batches do |follower_accounts|
-      UnfollowFollowWorker.push_bulk(follower_accounts.map(&:id)) do |follower_account_id|
-        [follower_account_id, origin_account.id, target_account.id]
-      end
-    end
-  end
-
-  private
-
-  def origin_account
-    @account
-  end
-
-  def target_uri
-    value_or_id(@json['target'])
-  end
-
-  def processed?
-    redis.exists("move_in_progress:#{@account.id}")
-  end
-
-  def mark_as_processing!
-    redis.setex("move_in_progress:#{@account.id}", PROCESSING_COOLDOWN, true)
-  end
-end
diff --git a/app/lib/activitypub/adapter.rb b/app/lib/activitypub/adapter.rb
index 99f4d9305..d35cae889 100644
--- a/app/lib/activitypub/adapter.rb
+++ b/app/lib/activitypub/adapter.rb
@@ -10,7 +10,6 @@ class ActivityPub::Adapter < ActiveModelSerializers::Adapter::Base
         'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
         'sensitive'                 => 'as:sensitive',
         'movedTo'                   => { '@id' => 'as:movedTo', '@type' => '@id' },
-        'alsoKnownAs'               => { '@id' => 'as:alsoKnownAs', '@type' => '@id' },
         'Hashtag'                   => 'as:Hashtag',
         'ostatus'                   => 'http://ostatus.org#',
         'atomUri'                   => 'ostatus:atomUri',
diff --git a/app/models/account.rb b/app/models/account.rb
index 67d9a583e..722e47d65 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -44,7 +44,6 @@
 #  fields                  :jsonb
 #  actor_type              :string
 #  discoverable            :boolean
-#  also_known_as           :string           is an Array
 #
 
 class Account < ApplicationRecord
@@ -233,10 +232,6 @@ class Account < ApplicationRecord
     end
   end
 
-  def also_known_as
-    self[:also_known_as] || []
-  end
-
   def fields
     (self[:fields] || []).map { |f| Field.new(self, f) }
   end
diff --git a/app/serializers/activitypub/actor_serializer.rb b/app/serializers/activitypub/actor_serializer.rb
index 6746c1782..72c30dc73 100644
--- a/app/serializers/activitypub/actor_serializer.rb
+++ b/app/serializers/activitypub/actor_serializer.rb
@@ -14,7 +14,6 @@ class ActivityPub::ActorSerializer < ActiveModel::Serializer
   has_many :virtual_attachments, key: :attachment
 
   attribute :moved_to, if: :moved?
-  attribute :also_known_as, if: :also_known_as?
 
   class EndpointsSerializer < ActiveModel::Serializer
     include RoutingHelper
@@ -117,10 +116,6 @@ class ActivityPub::ActorSerializer < ActiveModel::Serializer
     ActivityPub::TagManager.instance.uri_for(object.moved_to_account)
   end
 
-  def also_known_as?
-    !object.also_known_as.empty?
-  end
-
   class CustomEmojiSerializer < ActivityPub::EmojiSerializer
   end
 
diff --git a/app/services/activitypub/process_account_service.rb b/app/services/activitypub/process_account_service.rb
index d6480028f..5c865dae2 100644
--- a/app/services/activitypub/process_account_service.rb
+++ b/app/services/activitypub/process_account_service.rb
@@ -75,7 +75,6 @@ class ActivityPub::ProcessAccountService < BaseService
     @account.note                    = @json['summary'] || ''
     @account.locked                  = @json['manuallyApprovesFollowers'] || false
     @account.fields                  = property_values || {}
-    @account.also_known_as           = as_array(@json['alsoKnownAs'] || []).map { |item| value_or_id(item) }
     @account.actor_type              = actor_type
   end
 
diff --git a/app/services/follow_service.rb b/app/services/follow_service.rb
index 9d36a1449..24b3e1f70 100644
--- a/app/services/follow_service.rb
+++ b/app/services/follow_service.rb
@@ -10,7 +10,7 @@ class FollowService < BaseService
     target_account = ResolveAccountService.new.call(target_account, skip_webfinger: true)
 
     raise ActiveRecord::RecordNotFound if target_account.nil? || target_account.id == source_account.id || target_account.suspended?
-    raise Mastodon::NotPermittedError  if target_account.blocking?(source_account) || source_account.blocking?(target_account) || target_account.moved?
+    raise Mastodon::NotPermittedError  if target_account.blocking?(source_account) || source_account.blocking?(target_account)
 
     if source_account.following?(target_account)
       # We're already following this account, but we'll call follow! again to
diff --git a/app/workers/unfollow_follow_worker.rb b/app/workers/unfollow_follow_worker.rb
deleted file mode 100644
index a2133bb8c..000000000
--- a/app/workers/unfollow_follow_worker.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# frozen_string_literal: true
-
-class UnfollowFollowWorker
-  include Sidekiq::Worker
-
-  sidekiq_options queue: 'pull'
-
-  def perform(follower_account_id, old_target_account_id, new_target_account_id)
-    follower_account   = Account.find(follower_account_id)
-    old_target_account = Account.find(old_target_account_id)
-    new_target_account = Account.find(new_target_account_id)
-
-    UnfollowService.new.call(follower_account, old_target_account)
-    FollowService.new.call(follower_account, new_target_account)
-  rescue ActiveRecord::RecordNotFound
-    true
-  end
-end