Hi,
We've an application that uses url_for in controllers and views. In views, url_for generates a relative url (as if :only_path where used). All is fine there.
However, in controllers, url_for generates a full url, with the host name. This causes problems when we have a chain of Apache proxy servers:
My Browser ---> Proxy 1 ----> Proxy 2 ----> Phusion Deployment Server.
In this scenario, the request header item HTTP_X_FORWARDED_HOST contains the following:
proxy1:81, proxy2
Rails extracts the host by splitting this string and getting the last item:
(actionpack-2.3.2\lib\action_controller\request.rb line 271)
def raw_host_with_port if forwarded = env["HTTP_X_FORWARDED_HOST"] forwarded.split(/,\s?/).last else env['HTTP_HOST'] || "#{env['SERVER_NAME'] || env ['SERVER_ADDR']}:#{env['SERVER_PORT']}" end end
What happens is that we get proxy2 as the host.
Shouldn't it be trying to get the first item instead -
forwarded.split(/,\s?/).first
giving us proxy1:81 instead?
Is this a bug? If not, is there reasoning behind this?
Derek.
