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/*
 * ====================================================================
 *
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "HttpClient", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
 *    from this software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache"
 *    nor may "Apache" appear in their names without prior written
 *    permission of the Apache Group.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * 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
 * .
 *
 * [Additional notices, if required by prior licensing conditions]
 *
 */

import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.*;

/**
 * 

* A example that demonstrates how HttpClient APIs can be used to perform * form-based logon. *

* * @author Oleg Kalnichevski * */ public class FormLoginDemo { static final String LOGON_SITE = "developer.java.sun.com"; static final int LOGON_PORT = 80; public FormLoginDemo() { super(); } public static void main(String[] args) throws Exception { HttpClient client = new HttpClient(); client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT, "http"); client.getState().setCookiePolicy(CookiePolicy.COMPATIBILITY); // 'developer.java.sun.com' has cookie compliance problems // Their session cookie's domain attribute is in violation of the RFC2109 // We have to resort to using compatibility cookie policy GetMethod authget = new GetMethod("/servlet/SessionServlet"); client.executeMethod(authget); System.out.println("Login form get: " + authget.getStatusLine().toString()); // release any connection resources used by the method authget.releaseConnection(); // See if we got any cookies Cookie[] initcookies = client.getState().getCookies(LOGON_SITE, LOGON_PORT, "/", false); System.out.println("Initial set of cookies:"); if (initcookies.length == 0) { System.out.println("None"); } else { for (int i = 0; i < initcookies.length; i++) { System.out.println("- " + initcookies[i].toString()); } } PostMethod authpost = new PostMethod("/servlet/SessionServlet"); // Prepare login parameters NameValuePair action = new NameValuePair("action", "login"); NameValuePair url = new NameValuePair("url", "/index.html"); NameValuePair userid = new NameValuePair("UserId", "userid"); NameValuePair password = new NameValuePair("Password", "password"); authpost.setRequestBody( new NameValuePair[] {action, url, userid, password}); client.executeMethod(authpost); System.out.println("Login form post: " + authpost.getStatusLine().toString()); // release any connection resources used by the method authpost.releaseConnection(); // See if we got any cookies // The only way of telling whether logon succeeded is // by finding a session cookie Cookie[] logoncookies = client.getState().getCookies(LOGON_SITE, LOGON_PORT, "/", false); System.out.println("Logon cookies:"); if (logoncookies.length == 0) { System.out.println("None"); } else { for (int i = 0; i < logoncookies.length; i++) { System.out.println("- " + logoncookies[i].toString()); } } // Usually a successful form-based login results in a redicrect to // another url int statuscode = authpost.getStatusCode(); if ((statuscode == HttpStatus.SC_MOVED_TEMPORARILY) || (statuscode == HttpStatus.SC_MOVED_PERMANENTLY) || (statuscode == HttpStatus.SC_SEE_OTHER) || (statuscode == HttpStatus.SC_TEMPORARY_REDIRECT)) { Header header = authpost.getResponseHeader("location"); if (header != null) { String newuri = header.getValue(); if ((newuri == null) || (newuri.equals(""))) { newuri = "/"; } System.out.println("Redirect target: " + newuri); GetMethod redirect = new GetMethod(newuri); client.executeMethod(redirect); System.out.println("Redirect: " + redirect.getStatusLine().toString()); // release any connection resources used by the method redirect.releaseConnection(); } else { System.out.println("Invalid redirect"); System.exit(1); } } } }
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