Description of problem: GURPMI cannot traverse a authenticated proxy. It do not pass downloader section of urpmi.cfg to downloader, nor pass proxy user/password also, despite use of 'proxy_user_ask' clause in proxy.cfg. You cannot update using graphical tools.


Version-Release number of selected component (if applicable):


How reproducible: every time


Steps to Reproduce:
1.add 'proxy_user_ask' clause to /etc/urpmi/proxy.cfg
2.change default downloader to 'curl' in /etc/urpmi/urpmi.cfg
3.add '--proxy-ntlm' to 'curl options' in urpmi.cfg and use a authenticated proxy with NTLM scheme
4.GURPMI does not pass proxy-user, proxy-password nor '--proxy-ntlm' to curl.

In other authenticated proxy scenarios I tested GURPMI has failed too. It does not passed any parameters to downloader, except its own default emmbedded in the GURPMI script.


Reproducible: 

Steps to Reproduce: