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Java Implementation of NTLM Proxy authentication ?  RSS feed

 
Greenhorn
Posts: 28
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Hi,

I am trying to implement NTLM proxy authentication in my application. The implementation for Basic and Digest schemes has been pretty straight forward.

For Basic,
-------------
URL url = new URL("http://java.sun.com");
HttpURLConnection con = (HttpURLConnection) url.openConnection();

con.setRequestProperty("Proxy-Authenticate", "Basic realm="+ realmName);
String authentication = new sun.misc.BASE64Encoder().encode( (uname + ":"+ pwd).getBytes() );
con.setRequestProperty("Proxy-Authorization", "Basic "+ authentication );

similarly I could implement for Digest mechanism.

I have problem implementing it for NTLM authentication mechanism for Proxy. If a page in the server is protected using NTLM scheme, Internet Explorer will present a dialog to enter username, password and domain(if user belongs to different domain) to get access to the resource on the server.

I have requirment to implement the same in my java application using HTTP Connection. I have no idea how to set the domain, username and pwd in the connection object. I found some information on NTLM at http://davenport.sourceforge.net/ntlm.html which provides with an example in the bottom of the page. But, I did not understand how to set Type 1, Type 2 and Type 3 messages in the connection object.

I appreciate if somebody can help me out ASAP.

Thanks in advance.
 
Ranch Hand
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You may want to look at JCIFS.
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