[HTTPCLIENT-1087] Proxy authentication error: Unexpected state: MSG_TYPE3_GENERATED when using NTLM authentication

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.1.1
• Fix Version/s: 4.1.2
• Component/s: HttpClient (classic)
• Environment: Client app running Java 6 on a Win 7 X64 box, proxy Squid 2.7 running on a Win7 machine.
• Assignee: Unassigned
• Reporter: David Gibbs
• Created: 13/May/11 14:30
• Updated: 23/Jul/11 09:58
• Resolved: 17/May/11 13:08

Description

Trying to connect to a website that requires basic authentication through a proxy that requires NTLM authentication.

Proxy authentication fails with "Proxy authentication error: Unexpected state: MSG_TYPE3_GENERATED".

Full wire log attached. Code to replicate problem follows:

private void execute() throws HttpException, IOException

{ URL targetUrl = new URL(TARGET_URL); DefaultHttpClient httpclient = new DefaultHttpClient(); HttpHost targetHost = new HttpHost(targetUrl.getHost()); HttpHost proxyHost = new HttpHost(PROXY_HOST, PROXY_PORT); httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxyHost); CredentialsProvider credProvider = httpclient.getCredentialsProvider(); Credentials proxyCredentials = new NTCredentials(PROXY_USER, PROXY_PASSWORD, PROXY_MACHINE, PROXY_DOMAIN); AuthScope proxyAuthScope = new AuthScope(proxyHost.getHostName(), proxyHost.getPort()); credProvider.setCredentials(proxyAuthScope, proxyCredentials); Credentials targetCredentials = new UsernamePasswordCredentials( TARGET_USER, TARGET_PASSWORD); AuthScope targetAuthScope = new AuthScope(targetHost.getHostName(), targetHost.getPort()); credProvider.setCredentials(targetAuthScope, targetCredentials); HttpGet httpget = new HttpGet(targetUrl.getPath()); HttpResponse response = httpclient.execute(targetHost, httpget); System.out.println("response = " + response); }