48 lines
1.3 KiB
Ruby
48 lines
1.3 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class VerifyLinkService < BaseService
|
|
def call(field)
|
|
@link_back = ActivityPub::TagManager.instance.url_for(field.account)
|
|
@url = field.value_for_verification
|
|
|
|
perform_request!
|
|
|
|
return unless link_back_present?
|
|
|
|
field.mark_verified!
|
|
field.account.save!
|
|
rescue HTTP::Error, Addressable::URI::InvalidURIError, Mastodon::HostValidationError, Mastodon::LengthValidationError => e
|
|
Rails.logger.debug "Error fetching link #{@url}: #{e}"
|
|
nil
|
|
end
|
|
|
|
private
|
|
|
|
def perform_request!
|
|
@body = Request.new(:get, @url).add_headers('Accept' => 'text/html').perform do |res|
|
|
res.code != 200 ? nil : res.body_with_limit
|
|
end
|
|
end
|
|
|
|
def link_back_present?
|
|
return false if @body.blank?
|
|
|
|
links = Nokogiri::HTML(@body).xpath('//a[contains(concat(" ", normalize-space(@rel), " "), " me ")]|//link[contains(concat(" ", normalize-space(@rel), " "), " me ")]')
|
|
|
|
if links.any? { |link| link['href'] == @link_back }
|
|
true
|
|
elsif links.empty?
|
|
false
|
|
else
|
|
link_redirects_back?(links.first['href'])
|
|
end
|
|
end
|
|
|
|
def link_redirects_back?(test_url)
|
|
redirect_to_url = Request.new(:head, test_url, follow: false).perform do |res|
|
|
res.headers['Location']
|
|
end
|
|
|
|
redirect_to_url == @link_back
|
|
end
|
|
end
|