[jcifs] Why would auth work on one server and not on another?
Dave Mobley
scprotz at hotmail.com
Fri Jul 11 03:35:40 EST 2003
Here is my NtlmSsp. Except for the commented out 'flushbuffer()', it is the
same as in 0.7.8
Any suggestions why it might a connection under 1 server and work fine on
another? If a packet capture of a working server is needed, I can provide
that as well.
/* jcifs smb client library in Java
* Copyright (C) 2002 "Michael B. Allen" <jcifs at samba dot org>
* "Eric Glass" <jcifs at samba dot org>
* "Jason Pugsley" <jcifs at samba dot org>
* "skeetz" <jcifs at samba dot org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.http;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.util.Base64;
import jcifs.ntlmssp.NtlmFlags;
import jcifs.ntlmssp.Type1Message;
import jcifs.ntlmssp.Type2Message;
import jcifs.ntlmssp.Type3Message;
/**
* This class is used internally by <tt>NtlmHttpFilter</tt>,
* <tt>NtlmServlet</tt>, and <tt>NetworkExplorer</tt> to negiotiate password
* hashes via NTLM SSP with MSIE. It might also be used directly by servlet
* containers to incorporate similar functionality.
* <p>
* How NTLMSSP is used in conjunction with HTTP and MSIE clients is
* described in an <A HREF="http://www.innovation.ch/java/ntlm.html">NTLM
* Authentication Scheme for HTTP</A>. <p> Also, read <a
* href="../../../ntlmhttpauth.html">jCIFS NTLM HTTP Authentication and
* the Network Explorer Servlet</a> related information.
*/
public class NtlmSsp implements NtlmFlags {
/**
* Performs NTLM authentication for the servlet request.
*
* @param req The request being serviced.
* @param resp The response.
* @param challenge The domain controller challenge.
* @throws IOException If an IO error occurs.
* @throws ServletException If an error occurs.
*/
public NtlmPasswordAuthentication doAuthentication(HttpServletRequest req,
HttpServletResponse resp, byte[] challenge)
throws IOException, ServletException {
String msg = req.getHeader("Authorization");
if (msg != null && msg.startsWith("NTLM ")) {
byte[] src = Base64.decode(msg.substring(5));
if (src[8] == 1) {
System.out.println("Type 1 message");
Type1Message type1 = new Type1Message(src);
Type2Message type2 = new Type2Message(type1, challenge,
Type2Message.getDefaultDomain());
msg = Base64.encodeBytes(type2.toByteArray());
System.out.println("type 1 message = " + msg);
resp.setHeader( "WWW-Authenticate", "NTLM " + msg );
resp.setContentLength( 0 );
} else if (src[8] == 3) {
System.out.println("type 3 message");
Type3Message type3 = new Type3Message(src);
byte[] lmResponse = type3.getLMResponse();
if (lmResponse == null) lmResponse = new byte[0];
byte[] ntResponse = type3.getNTResponse();
if (ntResponse == null) ntResponse = new byte[0];
return new NtlmPasswordAuthentication(type3.getDomain(),
type3.getUser(), lmResponse, ntResponse);
}
} else {
resp.setHeader("WWW-Authenticate", "NTLM");
resp.setHeader("Connection", "close");
}
resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
// resp.flushBuffer();
return null;
}
}
thanks,
Dave Mobley
scprotz at hotmail.com
----- Original Message -----
From: <eglass1 at comcast.net>
To: "Dave Mobley" <scprotz at hotmail.com>
Cc: <jcifs at lists.samba.org>; <Michael_B_Allen at ml.com>
Sent: Thursday, July 10, 2003 11:06 AM
Subject: Re: [jcifs] Why would auth work on one server and not on another?
>
> > Here is a copy of my sevlet. It is very simple (and the
> > jcifs.http.NtlmServlet grafted from 0.7.8 with the slight modifications
to
> > make it jdk1.1 and jsdk2.0 compliant). Also, I did rename my servlet
and
> > strip out the cookie handling just to make it simpler.
> >
>
> Actually, the relevant code would be in jcifs.http.NtlmSsp; that is where
the
> Type 2 message is created and sent.
>
> Eric
>
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