Hi,
I am trying to access the web through our corporate proxy server with
uses NTLM. I have not been able to authenticate - receive 407 error.
Attached is the code I'm using. When viewing the proxy logs, they said
that I was not passing any credentials to the proxy server and that is
why I failed. Where did I go wrong?
import java.util.*;
import java.io.*;
import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.*;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.commons.httpclient.auth.*;
public class HttpClientNTLM {
private static String url = "http://www.google.com/";;
public static void main(String[] args) {
// Create an instance of HttpClient.
HttpClient client = new HttpClient();
String NTUser=username;
String NTPwd=password;
String NTDomain=domain;
client.getHostConfiguration().setHost("www.google.com");
client.getHostConfiguration().setProxy(proxy host, 8080);
List authPrefs = new ArrayList();
authPrefs.add(AuthPolicy.NTLM);
client.getState().setProxyCredentials(
new AuthScope(null, 8080, null),
new NTCredentials(NTUser, NTPwd, "", NTDomain));
client.getParams().setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY,
authPrefs);
// Create a method instance.
GetMethod method = new GetMethod(url);
// Provide custom retry handler is necessary
method.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
new DefaultHttpMethodRetryHandler(3, false));
try {
// Execute the method.
int statusCode = client.executeMethod(method);
if (statusCode != HttpStatus.SC_OK) {
System.err.println("Method failed: " + method.getStatusLine());
}
// Read the response body.
byte[] responseBody = method.getResponseBody();
// Deal with the response.
// Use caution: ensure correct character encoding and is not
binary data
System.out.println(new String(responseBody));
} catch (HttpException e) {
System.err.println("Fatal protocol violation: " + e.getMessage());
e.printStackTrace();
} catch (IOException e) {
System.err.println("Fatal transport error: " + e.getMessage());
e.printStackTrace();
} finally {
// Release the connection.
method.releaseConnection();
}
}
}
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