76 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			76 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class ActivityPub::Activity::Announce < ActivityPub::Activity
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  def perform
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    return reject_payload! if delete_arrived_first?(@json['id']) || !related_to_local_activity?
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    RedisLock.acquire(lock_options) do |lock|
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      if lock.acquired?
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        original_status = status_from_object
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        return reject_payload! if original_status.nil? || !announceable?(original_status)
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        @status = Status.find_by(account: @account, reblog: original_status)
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        return @status unless @status.nil?
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        @status = Status.create!(
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          account: @account,
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          reblog: original_status,
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          uri: @json['id'],
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          created_at: @json['published'],
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          override_timestamps: @options[:override_timestamps],
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          visibility: visibility_from_audience
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        )
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        distribute(@status)
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      else
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        raise Mastodon::RaceConditionError
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      end
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    end
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    @status
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  end
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  private
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  def audience_to
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    as_array(@json['to']).map { |x| value_or_id(x) }
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  end
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  def audience_cc
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    as_array(@json['cc']).map { |x| value_or_id(x) }
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  end
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  def visibility_from_audience
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    if audience_to.include?(ActivityPub::TagManager::COLLECTIONS[:public])
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      :public
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    elsif audience_cc.include?(ActivityPub::TagManager::COLLECTIONS[:public])
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      :unlisted
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    elsif audience_to.include?(@account.followers_url)
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      :private
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    else
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      :direct
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    end
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  end
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  def announceable?(status)
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    status.account_id == @account.id || status.distributable?
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  end
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  def related_to_local_activity?
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    followed_by_local_accounts? || requested_through_relay? || reblog_of_local_status?
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  end
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  def requested_through_relay?
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    super || Relay.find_by(inbox_url: @account.inbox_url)&.enabled?
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  end
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  def reblog_of_local_status?
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    status_from_uri(object_uri)&.account&.local?
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  end
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  def lock_options
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    { redis: Redis.current, key: "announce:#{@object['id']}" }
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  end
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end
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