catstodon/app/services/fetch_remote_account_service.rb
Eugen 17c591ffba Punycode URI normalization (#2370)
* Fix #2119 - Whenever about to send a HTTP request, normalize the URI

* Add test for IDN request in FetchLinkCardService

* Perform IDN normalization on domains before they are stored in the DB
2017-04-25 02:47:31 +02:00

45 lines
1.2 KiB
Ruby

# frozen_string_literal: true
class FetchRemoteAccountService < 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)
xml = Nokogiri::XML(body)
xml.encoding = 'utf-8'
email = xml.at_xpath('//xmlns:author/xmlns:email').try(:content)
if email.nil?
url_parts = Addressable::URI.parse(url).normalize
username = xml.at_xpath('//xmlns:author/xmlns:name').try(:content)
domain = url_parts.host
else
username, domain = email.split('@')
end
return nil if username.nil? || domain.nil?
Rails.logger.debug "Going to webfinger #{username}@#{domain}"
account = FollowRemoteAccountService.new.call("#{username}@#{domain}")
UpdateRemoteProfileService.new.call(xml, account) unless account.nil?
account
rescue TypeError
Rails.logger.debug "Unparseable URL given: #{url}"
nil
rescue Nokogiri::XML::XPath::SyntaxError
Rails.logger.debug 'Invalid XML or missing namespace'
nil
end
end