Bug#445985: Setting http_proxy discards proxy information altogether for https

[Jussi Hakala <jussi.hakala@hut.fi>]

Package: apt-transport-https
Version: 0.7.6

When http_proxy environment variable is set, all information about proxy 
is discarded. Both the information present in the environment variable 
and the information in apt.conf (Acquire::http::Proxy).

It should either honor the http_proxy over the apt.conf (see also 
#157759) or use the one specified in the configuration, regardless 
what's in the environment variable.

The issue is https only.

Included a patch to use the http_proxy whenever it's set, overriding the 
apt.conf value.
--- orig/apt-0.7.6/methods/https.cc	2007-07-24 15:33:30.000000000 +0300
+++ new/apt-0.7.6/methods/https.cc	2007-10-09 17:16:50.000000000 +0300
@@ -75,6 +75,10 @@
       else
 	 Proxy = DefProxy;
    }
+   else
+   {
+      Proxy = getenv("http_proxy");
+   }
    
    // Parse no_proxy, a , separated list of domains
    if (getenv("no_proxy") != 0)