Apache HttpClient 4.1.1 NTLM authentication not SPNEGO

The problem here is consuming a web resource that has NTLM authentication while using the Apache HttpClient on the client side. The issue I am having is forcing the client to use NTLM authentication. here is a code sapmle.

DefaultHttpClient httpclient = new DefaultHttpClient();
httpclient.getAuthSchemes().register("ntlm",new NTLMSchemeFactory());
NTCredentials creds = new NTCredentials("_myUSer_","_myPass_","_myWorkstation_","_myDomain_");
httpclient.getCredentialsProvider().setCredentials( new AuthScope("serverName",80), creds);
List<String> authpref = new ArrayList<String>();
authpref.add(AuthPolicy.NTLM);
httpclient.getParams().setParameter(AuthPNames.PROXY_AUTH_PREF, authpref);
HttpHost target = new HttpHost("serverName", 80, "http");
HttpGet httpget = new HttpGet("webResource");
HttpContext localContext = new BasicHttpContext();
HttpResponse response = httpclient.execute(target, httpget, localContext);

Here is the error from Java:

org.apache.http.client.protocol.RequestTa开发者_开发技巧rgetAuthentication process
SEVERE: Authentication error: Invalid name provided (Mechanism level: Could not load configuration file C:\WINDOWS\krb5.ini (The system cannot find the file specified))

The web server response is a 401.

Any ideas on why the auth policy not being set correctly? Am I missing something in the code?

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I have a similar situation and I suspect that you are setting the wrong parameter: AuthPNames.PROXY_AUTH_PREF. I use AuthPNames.TARGET_AUTH_PREF and all seems to work fine.

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Here is my solution to this Problem: And "evandongen" is right.

Please note the use of the URIBuilder.

String username = "uid";
String pwd = "pwd";
String servername = "www.someserver.com";
String workstation = "myworkstation";
String domain = "somedomain";
String relativeurl = "/util/myservice.asmx";

String oldimagePath = "\\mypath\\image.jpg";

DefaultHttpClient httpclient = new DefaultHttpClient();

try {
    httpclient.getAuthSchemes().register("ntlm",new NTLMSchemeFactory());
    NTCredentials creds = new NTCredentials(username,pwd,workstation,domain);

        httpclient.getCredentialsProvider().setCredentials(new AuthScope(servername,80), creds);

        List authpref = new ArrayList();

        authpref.add(AuthPolicy.NTLM);

        URIBuilder builder = new URIBuilder();
        builder.setScheme("http")
            .setHost(servername)
            .setPath(relativeurl + "/DeleteImage")
            .setParameter("imagePath", oldimagePath);
        URI uri = builder.build();

        httpclient.getParams().setParameter(AuthPNames.TARGET_AUTH_PREF, authpref);
        HttpHost target = new HttpHost(servicename, 80, "http");
        HttpGet httpget = new HttpGet(uri);

        HttpContext localContext = new BasicHttpContext();

        HttpResponse response1 = httpclient.execute(target, httpget, localContext);

        BufferedReader reader = new BufferedReader(new InputStreamReader(response1.getEntity().getContent())); 

        String line = reader.readLine(); 
        while (line != null) 
        { 
            System.out.println(line);
            line = reader.readLine(); 
        } 

} catch (Exception e) {
    System.out.println("Exception:"+e.toString());
} finally {
    // End
}

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I think this is because of a defect, see here.

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HttpClient did not work for me but the below snippet did. Reference - http://docs.oracle.com/javase/7/docs/technotes/guides/net/http-auth.html

    public static String getResponse(String url, String userName, String password) throws IOException {
    Authenticator.setDefault(new Authenticator() {
      @Override
      public PasswordAuthentication getPasswordAuthentication() {
        System.out.println(getRequestingScheme() + " authentication");
        return new PasswordAuthentication(userName, password.toCharArray());
      }
    });

    URL urlRequest = new URL(url);
    HttpURLConnection conn = (HttpURLConnection) urlRequest.openConnection();
    conn.setDoOutput(true);
    conn.setDoInput(true);
    conn.setRequestMethod("GET");

    StringBuilder response = new StringBuilder();
    InputStream stream = conn.getInputStream();
    BufferedReader in = new BufferedReader(new InputStreamReader(stream));
    String str = "";
    while ((str = in.readLine()) != null) {
      response.append(str);
    }
    in.close();

    return response.toString();
  }