45 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class FetchRemoteStatusService < BaseService
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  include AuthorExtractor
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  def call(url, prefetched_body = nil, protocol = :ostatus)
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    if prefetched_body.nil?
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      resource_url, body, protocol = FetchAtomService.new.call(url)
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    else
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      resource_url = url
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      body         = prefetched_body
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    end
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    case protocol
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    when :ostatus
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      process_atom(resource_url, body)
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    when :activitypub
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      ActivityPub::FetchRemoteStatusService.new.call(resource_url, body)
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    end
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  end
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  private
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  def process_atom(url, body)
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    Rails.logger.debug "Processing Atom for remote status at #{url}"
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    xml = Nokogiri::XML(body)
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    xml.encoding = 'utf-8'
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    account = author_from_xml(xml.at_xpath('/xmlns:entry', xmlns: TagManager::XMLNS))
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    domain  = Addressable::URI.parse(url).normalized_host
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    return nil unless !account.nil? && confirmed_domain?(domain, account)
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    statuses = ProcessFeedService.new.call(body, account)
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    statuses.first
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  rescue Nokogiri::XML::XPath::SyntaxError
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    Rails.logger.debug 'Invalid XML or missing namespace'
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    nil
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  end
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  def confirmed_domain?(domain, account)
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    account.domain.nil? || domain.casecmp(account.domain).zero? || domain.casecmp(Addressable::URI.parse(account.remote_url).normalized_host).zero?
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  end
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end
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