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# frozen_string_literal: true
module RestClient
class Request
attr_accessor :hostname_override
module UrlBlocker
def transmit(uri, req, payload, &block)
begin
ip, hostname_override = Gitlab::UrlBlocker.validate!(uri, allow_local_network: allow_settings_local_requests?,
allow_localhost: allow_settings_local_requests?,
dns_rebind_protection: dns_rebind_protection?)
self.hostname_override = hostname_override
rescue Gitlab::UrlBlocker::BlockedUrlError => e
raise ArgumentError, "URL '#{uri}' is blocked: #{e.message}"
end
# Gitlab::UrlBlocker returns a Addressable::URI which we need to coerce
# to URI so that rest-client can use it to determine if it's a
# URI::HTTPS or not. It uses it to set `net.use_ssl` to true or not:
#
# https://github.com/rest-client/rest-client/blob/f450a0f086f1cd1049abbef2a2c66166a1a9ba71/lib/restclient/request.rb#L656
ip_as_uri = URI.parse(ip)
super(ip_as_uri, req, payload, &block)
end
def net_http_object(hostname, port)
super.tap do |http|
http.hostname_override = hostname_override if hostname_override
end
end
private
def dns_rebind_protection?
return false if Gitlab.http_proxy_env?
Gitlab::CurrentSettings.dns_rebinding_protection_enabled?
end
def allow_settings_local_requests?
Gitlab::CurrentSettings.allow_local_requests_from_web_hooks_and_services?
end
end
prepend UrlBlocker
end
end
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