fedibird-fe/app/services/fetch_remote_status_service.rb
2016-11-13 19:12:40 +01:00

40 lines
996 B
Ruby

class FetchRemoteStatusService < BaseService
def call(url)
atom_url, body = FetchAtomService.new.call(url)
return nil if atom_url.nil?
return 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)
return 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