src/examples/InteractiveAuthenticationExample.java

/*
 * $HeadURL$
 * $Revision$
 * $Date$
 * ====================================================================
 *
 *  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 java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NTCredentials;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScheme;
import org.apache.commons.httpclient.auth.CredentialsProvider;
import org.apache.commons.httpclient.auth.CredentialsNotAvailableException;
import org.apache.commons.httpclient.auth.NTLMScheme;
import org.apache.commons.httpclient.auth.RFC2617Scheme;
import org.apache.commons.httpclient.methods.GetMethod;

/**
 * A simple example that uses HttpClient to perform interactive
 * authentication.
 *
 * @author Oleg Kalnichevski
 */
public class InteractiveAuthenticationExample {

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

    public static void main(String[] args) throws Exception {

        InteractiveAuthenticationExample demo = new InteractiveAuthenticationExample();
        demo.doDemo();
    }
    
    private void doDemo() throws IOException {

        HttpClient client = new HttpClient();
        client.getParams().setParameter(
            CredentialsProvider.PROVIDER, new ConsoleAuthPrompter());
        GetMethod httpget = new GetMethod("http://target-host/requires-auth.html");
        httpget.setDoAuthentication(true);
        try {
            // execute the GET
            int status = client.executeMethod(httpget);
            // print the status and response
            System.out.println(httpget.getStatusLine().toString());
            System.out.println(httpget.getResponseBodyAsString());
        } finally {
            // release any connection resources used by the method
            httpget.releaseConnection();
        }
    }

    public class ConsoleAuthPrompter implements CredentialsProvider {

        private BufferedReader in = null; 
        public ConsoleAuthPrompter() {
            super();
            this.in = new BufferedReader(new InputStreamReader(System.in));
        }
        
        private String readConsole() throws IOException {
            return this.in.readLine();
        }
        
        public Credentials getCredentials(
            final AuthScheme authscheme, 
            final String host, 
            int port, 
            boolean proxy)
            throws CredentialsNotAvailableException 
        {
            if (authscheme == null) {
                return null;
            }
            try{
                if (authscheme instanceof NTLMScheme) {
                    System.out.println(host + ":" + port + " requires Windows authentication");
                    System.out.print("Enter domain: ");
                    String domain = readConsole();   
                    System.out.print("Enter username: ");
                    String user = readConsole();   
                    System.out.print("Enter password: ");
                    String password = readConsole();
                    return new NTCredentials(user, password, host, domain);    
                } else
                if (authscheme instanceof RFC2617Scheme) {
                    System.out.println(host + ":" + port + " requires authentication with the realm '" 
                        + authscheme.getRealm() + "'");
                    System.out.print("Enter username: ");
                    String user = readConsole();   
                    System.out.print("Enter password: ");
                    String password = readConsole();
                    return new UsernamePasswordCredentials(user, password);    
                } else {
                    throw new CredentialsNotAvailableException("Unsupported authentication scheme: " +
                        authscheme.getSchemeName());
                }
            } catch (IOException e) {
                throw new CredentialsNotAvailableException(e.getMessage(), e);
            }
        }
    }
}
1	/*
2	* $HeadURL$
3	* $Revision$
4	* $Date$
5	* ====================================================================
6	*
7	* Licensed to the Apache Software Foundation (ASF) under one or more
8	* contributor license agreements. See the NOTICE file distributed with
9	* this work for additional information regarding copyright ownership.
10	* The ASF licenses this file to You under the Apache License, Version 2.0
11	* (the "License"); you may not use this file except in compliance with
12	* the License. You may obtain a copy of the License at
13	*
14	* http://www.apache.org/licenses/LICENSE-2.0
15	*
16	* Unless required by applicable law or agreed to in writing, software
17	* distributed under the License is distributed on an "AS IS" BASIS,
18	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19	* See the License for the specific language governing permissions and
20	* limitations under the License.
21	* ====================================================================
22	*
23	* This software consists of voluntary contributions made by many
24	* individuals on behalf of the Apache Software Foundation. For more
25	* information on the Apache Software Foundation, please see
26	* <http://www.apache.org/>.
27	*
28	* [Additional notices, if required by prior licensing conditions]
29	*
30	*/
31
32	import java.io.BufferedReader;
33	import java.io.IOException;
34	import java.io.InputStreamReader;
35
36	import org.apache.commons.httpclient.Credentials;
37	import org.apache.commons.httpclient.HttpClient;
38	import org.apache.commons.httpclient.NTCredentials;
39	import org.apache.commons.httpclient.UsernamePasswordCredentials;
40	import org.apache.commons.httpclient.auth.AuthScheme;
41	import org.apache.commons.httpclient.auth.CredentialsProvider;
42	import org.apache.commons.httpclient.auth.CredentialsNotAvailableException;
43	import org.apache.commons.httpclient.auth.NTLMScheme;
44	import org.apache.commons.httpclient.auth.RFC2617Scheme;
45	import org.apache.commons.httpclient.methods.GetMethod;
46
47	/**
48	* A simple example that uses HttpClient to perform interactive
49	* authentication.
50	*
51	* @author Oleg Kalnichevski
52	*/
53	public class InteractiveAuthenticationExample {
54
55	/**
56	* Constructor for InteractiveAuthenticationExample.
57	*/
58	public InteractiveAuthenticationExample() {
59	super();
60	}
61
62	public static void main(String[] args) throws Exception {
63
64	InteractiveAuthenticationExample demo = new InteractiveAuthenticationExample();
65	demo.doDemo();
66	}
67
68	private void doDemo() throws IOException {
69
70	HttpClient client = new HttpClient();
71	client.getParams().setParameter(
72	CredentialsProvider.PROVIDER, new ConsoleAuthPrompter());
73	GetMethod httpget = new GetMethod("http://target-host/requires-auth.html");
74	httpget.setDoAuthentication(true);
75	try {
76	// execute the GET
77	int status = client.executeMethod(httpget);
78	// print the status and response
79	System.out.println(httpget.getStatusLine().toString());
80	System.out.println(httpget.getResponseBodyAsString());
81	} finally {
82	// release any connection resources used by the method
83	httpget.releaseConnection();
84	}
85	}
86
87	public class ConsoleAuthPrompter implements CredentialsProvider {
88
89	private BufferedReader in = null;
90	public ConsoleAuthPrompter() {
91	super();
92	this.in = new BufferedReader(new InputStreamReader(System.in));
93	}
94
95	private String readConsole() throws IOException {
96	return this.in.readLine();
97	}
98
99	public Credentials getCredentials(
100	final AuthScheme authscheme,
101	final String host,
102	int port,
103	boolean proxy)
104	throws CredentialsNotAvailableException
105	{
106	if (authscheme == null) {
107	return null;
108	}
109	try{
110	if (authscheme instanceof NTLMScheme) {
111	System.out.println(host + ":" + port + " requires Windows authentication");
112	System.out.print("Enter domain: ");
113	String domain = readConsole();
114	System.out.print("Enter username: ");
115	String user = readConsole();
116	System.out.print("Enter password: ");
117	String password = readConsole();
118	return new NTCredentials(user, password, host, domain);
119	} else
120	if (authscheme instanceof RFC2617Scheme) {
121	System.out.println(host + ":" + port + " requires authentication with the realm '"
122	+ authscheme.getRealm() + "'");
123	System.out.print("Enter username: ");
124	String user = readConsole();
125	System.out.print("Enter password: ");
126	String password = readConsole();
127	return new UsernamePasswordCredentials(user, password);
128	} else {
129	throw new CredentialsNotAvailableException("Unsupported authentication scheme: " +
130	authscheme.getSchemeName());
131	}
132	} catch (IOException e) {
133	throw new CredentialsNotAvailableException(e.getMessage(), e);
134	}
135	}
136	}
137	}
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