Authentication from Third-Party Applications

/*
 * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//httpclient/src/examples/BasicAuthenticationExample.java,v 1.4 2004/06/12 22:47:23 olegk Exp $
 * $Revision: 480424 $
 * $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
 * ====================================================================
 *
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.methods.GetMethod;

/**
 * A simple example that uses HttpClient to perform a GET using Basic
 * Authentication. Can be run standalone without parameters.
 *
 * You need to have JSSE on your classpath for JDK prior to 1.4
 *
 * @author Michael Becke
 */
public class BasicAuthenticationExample {

    /**
     * Constructor for BasicAuthenticatonExample.
     */
    public BasicAuthenticationExample() {
        super();
    }

    public static void main(String[] args) throws Exception {
        HttpClient client = new HttpClient();

        // pass our credentials to HttpClient, they will only be used for
        // authenticating to servers with realm "realm" on the host
        // "www.verisign.com", to authenticate against
        // an arbitrary realm or host change the appropriate argument to null.
        client.getState().setCredentials(
            new AuthScope("www.verisign.com", 443, "realm"),
            new UsernamePasswordCredentials("username", "password")
        );

        // create a GET method that reads a file over HTTPS, we're assuming
        // that this file requires basic authentication using the realm above.
        GetMethod get = new GetMethod("https://www.verisign.com/products/index.html");

        // Tell the GET method to automatically handle authentication. The
        // method will use any appropriate credentials to handle basic
        // authentication requests.  Setting this value to false will cause
        // any request for authentication to return with a status of 401.
        // It will then be up to the client to handle the authentication.
        get.setDoAuthentication( true );

        try {
            // execute the GET
            int status = client.executeMethod( get );

            // print the status and response
            System.out.println(status + "\n" + get.getResponseBodyAsString());

        } finally {
            // release any connection resources used by the method
            get.releaseConnection();
        }
    }
}

// omitted (same as above)

HttpClient client = new HttpClient(); // same as above


// new lines
List authPrefs = new ArrayList(1);
authPrefs.add(AuthPolicy.DIGEST);
client.getParams().setParameter(AuthPolicy.AUTH_SCHEME_PRIORITY, authPrefs);

// omitted (same as above)

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<c:import url="http://mypentahoserver:8080/pentaho/ViewAction">
  <c:param name="solution" value="samples" />
  <c:param name="path" value="getting-started" />
  <c:param name="action" value="HelloWorld.xaction" />
  <c:param name="userid" value="joe" />
  <c:param name="password" value="password" />
</c:import>