1d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen/**
2d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $RCSfile$
3d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $Revision$
4d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $Date$
5d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
6d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
7d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
8d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * you may not use this file except in compliance with the License.
9d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * You may obtain a copy of the License at
10d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
11d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *     http://www.apache.org/licenses/LICENSE-2.0
12d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
13d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Unless required by applicable law or agreed to in writing, software
14d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * distributed under the License is distributed on an "AS IS" BASIS,
15d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * See the License for the specific language governing permissions and
17d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * limitations under the License.
18d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */
19d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen
20d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenpackage org.jivesoftware.smack.sasl;
21d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen
22d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenimport org.jivesoftware.smack.SASLAuthentication;
23d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen
24d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen/**
25d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Implementation of the SASL EXTERNAL mechanism.
26d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
27d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * To effectively use this mechanism, Java must be configured to properly
28d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * supply a client SSL certificate (of some sort) to the server. It is up
29d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * to the implementer to determine how to do this.  Here is one method:
30d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
31d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Create a java keystore with your SSL certificate in it:
32d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * keytool -genkey -alias username -dname "cn=username,ou=organizationalUnit,o=organizationaName,l=locality,s=state,c=country"
33d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
34d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Next, set the System Properties:
35d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  <ul>
36d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  <li>javax.net.ssl.keyStore to the location of the keyStore
37d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  <li>javax.net.ssl.keyStorePassword to the password of the keyStore
38d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  <li>javax.net.ssl.trustStore to the location of the trustStore
39d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  <li>javax.net.ssl.trustStorePassword to the the password of the trustStore
40d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *  </ul>
41d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
42d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Then, when the server requests or requires the client certificate, java will
43d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * simply provide the one in the keyStore.
44d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
45d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Also worth noting is the EXTERNAL mechanism in Smack is not enabled by default.
46d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * To enable it, the implementer will need to call SASLAuthentication.supportSASLMechamism("EXTERNAL");
47d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen *
48d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * @author Jay Kline
49d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */
50d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenpublic class SASLExternalMechanism extends SASLMechanism  {
51d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen
52d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen    public SASLExternalMechanism(SASLAuthentication saslAuthentication) {
53d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen        super(saslAuthentication);
54d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen    }
55d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen
56d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen    protected String getName() {
57d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen        return "EXTERNAL";
58d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen    }
59d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen}
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