48 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			48 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
 | 
						|
 | 
						|
class FetchRemoteStatusService < BaseService
 | 
						|
  def call(url, prefetched_body = nil)
 | 
						|
    if prefetched_body.nil?
 | 
						|
      atom_url, body = FetchAtomService.new.call(url)
 | 
						|
    else
 | 
						|
      atom_url = url
 | 
						|
      body     = prefetched_body
 | 
						|
    end
 | 
						|
 | 
						|
    return nil if atom_url.nil?
 | 
						|
    process_atom(atom_url, body)
 | 
						|
  end
 | 
						|
 | 
						|
  private
 | 
						|
 | 
						|
  def process_atom(url, body)
 | 
						|
    Rails.logger.debug "Processing Atom for remote status at #{url}"
 | 
						|
 | 
						|
    xml = Nokogiri::XML(body)
 | 
						|
    xml.encoding = 'utf-8'
 | 
						|
 | 
						|
    account = extract_author(url, xml)
 | 
						|
 | 
						|
    return nil if account.nil?
 | 
						|
 | 
						|
    statuses = ProcessFeedService.new.call(body, account)
 | 
						|
 | 
						|
    statuses.first
 | 
						|
  end
 | 
						|
 | 
						|
  def extract_author(url, xml)
 | 
						|
    url_parts = Addressable::URI.parse(url)
 | 
						|
    username  = xml.at_xpath('//xmlns:author/xmlns:name').try(:content)
 | 
						|
    domain    = url_parts.host
 | 
						|
 | 
						|
    return nil if username.nil?
 | 
						|
 | 
						|
    Rails.logger.debug "Going to webfinger #{username}@#{domain}"
 | 
						|
 | 
						|
    return FollowRemoteAccountService.new.call("#{username}@#{domain}")
 | 
						|
  rescue Nokogiri::XML::XPath::SyntaxError
 | 
						|
    Rails.logger.debug 'Invalid XML or missing namespace'
 | 
						|
    nil
 | 
						|
  end
 | 
						|
end
 |