36 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class ActivityPub::FetchRemoteStatusService < BaseService
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  include JsonLdHelper
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  # Should be called when uri has already been checked for locality
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  def call(uri, prefetched_json = nil)
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    @json = body_to_json(prefetched_json) || fetch_resource(uri)
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    return unless supported_context? && expected_type?
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    attributed_to = first_of_value(@json['attributedTo'])
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    attributed_to = attributed_to['id'] if attributed_to.is_a?(Hash)
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    return unless trustworthy_attribution?(uri, attributed_to)
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    actor = ActivityPub::TagManager.instance.uri_to_resource(attributed_to, Account)
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    actor = ActivityPub::FetchRemoteAccountService.new.call(attributed_to) if actor.nil?
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    ActivityPub::Activity::Create.new({ 'object' => @json }, actor).perform
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  end
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  private
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  def trustworthy_attribution?(uri, attributed_to)
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    Addressable::URI.parse(uri).normalized_host.casecmp(Addressable::URI.parse(attributed_to).normalized_host).zero?
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  end
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  def supported_context?
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    super(@json)
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  end
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  def expected_type?
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    %w(Note Article).include? @json['type']
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  end
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end
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