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https://github.com/mastodon/mastodon
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aeb124491d
Mastodon expects remote servers to remove follow relationships upon receiving a Block. However, the spec only evokes Block activities in a C2S context, never in a S2S context. This PR, in addition to federating the Block, explicitly sends a Reject for any affected follow relationship, which makes a bit more sense with regards to the spec.
72 lines
2.2 KiB
Ruby
72 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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class UnfollowService < BaseService
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# Unfollow and notify the remote user
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# @param [Account] source_account Where to unfollow from
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# @param [Account] target_account Which to unfollow
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def call(source_account, target_account)
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@source_account = source_account
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@target_account = target_account
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unfollow! || undo_follow_request!
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end
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private
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def unfollow!
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follow = Follow.find_by(account: @source_account, target_account: @target_account)
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return unless follow
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follow.destroy!
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create_notification(follow) unless @target_account.local?
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create_reject_notification(follow) if @target_account.local? && !@source_account.local?
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UnmergeWorker.perform_async(@target_account.id, @source_account.id)
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follow
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end
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def undo_follow_request!
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follow_request = FollowRequest.find_by(account: @source_account, target_account: @target_account)
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return unless follow_request
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follow_request.destroy!
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create_notification(follow_request) unless @target_account.local?
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follow_request
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end
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def create_notification(follow)
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if follow.target_account.ostatus?
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NotificationWorker.perform_async(build_xml(follow), follow.account_id, follow.target_account_id)
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elsif follow.target_account.activitypub?
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ActivityPub::DeliveryWorker.perform_async(build_json(follow), follow.account_id, follow.target_account.inbox_url)
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end
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end
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def create_reject_notification(follow)
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# Rejecting an already-existing follow request
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return unless follow.account.activitypub?
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ActivityPub::DeliveryWorker.perform_async(build_reject_json(follow), follow.target_account_id, follow.account.inbox_url)
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end
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def build_json(follow)
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ActiveModelSerializers::SerializableResource.new(
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follow,
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serializer: ActivityPub::UndoFollowSerializer,
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adapter: ActivityPub::Adapter
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).to_json
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end
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def build_reject_json(follow)
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ActiveModelSerializers::SerializableResource.new(
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follow,
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serializer: ActivityPub::RejectFollowSerializer,
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adapter: ActivityPub::Adapter
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).to_json
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end
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def build_xml(follow)
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OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.unfollow_salmon(follow))
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end
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end
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