client-side support for Negotiate authentication scheme

[Roman Geus]

Hi all

I have been working on a Filter that implements client and server side 
HTTP Negotiate and Basic authentication. The code is based on Bruno 
Harbulot's nice SpnegoFilter.

Everything works fine so far. However to get the client-side 
authentication working I had to change the parseAuthenticateHeader() 
method in the com.noelios.restlet.authentication.AuthenticationUtils 
class a bit.

The original implementation (version 1.1rc1) fails to locate the correct 
AuthenticationHelper, if the realm parameter is missing in the 
authenticate header, as e.g. for the Negotiate scheme.

Would it be possible to fix for this problem?

The diff for my quick fix is attached.

Best regards,
Roman

*** AuthenticationUtils.java.orig	2008-08-26 14:03:03.000000000 +0200
--- AuthenticationUtils.java	2008-08-26 14:03:22.000000000 +0200
***************
*** 225,230 ****
--- 225,234 ----
                  parseParameters(rest, result.getParameters());
  
                  result.setRealm(result.getParameters().getFirstValue("realm"));
+             } else {
+                 final String scheme = header;
+                 result = new ChallengeRequest(new ChallengeScheme("HTTP_"
+                         + scheme, scheme), null);                
              }
          }