forked from fedi/mastodon
dc786c0cf4
* Add equals_or_includes_any? helper in JsonLdHelper * Support arrays in JSON-LD type fields for actors/tags/objects. * Spec for resolving accounts with extension types * Style tweaks for codeclimate
62 lines
1.8 KiB
Ruby
62 lines
1.8 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ActivityPub::FetchRemoteAccountService < BaseService
|
|
include JsonLdHelper
|
|
|
|
SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze
|
|
|
|
# Should be called when uri has already been checked for locality
|
|
# Does a WebFinger roundtrip on each call
|
|
def call(uri, id: true, prefetched_body: nil)
|
|
@json = if prefetched_body.nil?
|
|
fetch_resource(uri, id)
|
|
else
|
|
body_to_json(prefetched_body)
|
|
end
|
|
|
|
return unless supported_context? && expected_type?
|
|
|
|
@uri = @json['id']
|
|
@username = @json['preferredUsername']
|
|
@domain = Addressable::URI.parse(@uri).normalized_host
|
|
|
|
return unless verified_webfinger?
|
|
|
|
ActivityPub::ProcessAccountService.new.call(@username, @domain, @json)
|
|
rescue Oj::ParseError
|
|
nil
|
|
end
|
|
|
|
private
|
|
|
|
def verified_webfinger?
|
|
webfinger = Goldfinger.finger("acct:#{@username}@#{@domain}")
|
|
confirmed_username, confirmed_domain = split_acct(webfinger.subject)
|
|
|
|
return webfinger.link('self')&.href == @uri if @username.casecmp(confirmed_username).zero? && @domain.casecmp(confirmed_domain).zero?
|
|
|
|
webfinger = Goldfinger.finger("acct:#{confirmed_username}@#{confirmed_domain}")
|
|
@username, @domain = split_acct(webfinger.subject)
|
|
self_reference = webfinger.link('self')
|
|
|
|
return false unless @username.casecmp(confirmed_username).zero? && @domain.casecmp(confirmed_domain).zero?
|
|
return false if self_reference&.href != @uri
|
|
|
|
true
|
|
rescue Goldfinger::Error
|
|
false
|
|
end
|
|
|
|
def split_acct(acct)
|
|
acct.gsub(/\Aacct:/, '').split('@')
|
|
end
|
|
|
|
def supported_context?
|
|
super(@json)
|
|
end
|
|
|
|
def expected_type?
|
|
equals_or_includes_any?(@json['type'], SUPPORTED_TYPES)
|
|
end
|
|
end
|