2 Copyright (C) 2003, 2006 Free Software Foundation, Inc.
4 This file is a part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or (at
9 your option) any later version.
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package gnu
.javax
.crypto
.sasl
.plain
;
41 import gnu
.java
.lang
.CPStringBuilder
;
43 import gnu
.java
.security
.Registry
;
44 import gnu
.javax
.crypto
.sasl
.ClientMechanism
;
46 import javax
.security
.sasl
.SaslClient
;
47 import javax
.security
.sasl
.SaslException
;
48 import javax
.security
.auth
.callback
.Callback
;
49 import javax
.security
.auth
.callback
.NameCallback
;
50 import javax
.security
.auth
.callback
.PasswordCallback
;
53 * The PLAIN SASL client-side mechanism.
55 public class PlainClient
56 extends ClientMechanism
61 super(Registry
.SASL_PLAIN_MECHANISM
);
64 protected void initMechanism() throws SaslException
68 protected void resetMechanism() throws SaslException
72 public boolean hasInitialResponse()
77 public byte[] evaluateChallenge(final byte[] challenge
) throws SaslException
81 final String username
;
82 final char[] password
;
84 if ((! properties
.containsKey(Registry
.SASL_USERNAME
))
85 && (! properties
.containsKey(Registry
.SASL_PASSWORD
)))
87 callbacks
= new Callback
[2];
88 final NameCallback nameCB
;
89 final String defaultName
= System
.getProperty("user.name");
90 if (defaultName
== null)
91 nameCB
= new NameCallback("username: ");
93 nameCB
= new NameCallback("username: ", defaultName
);
94 final PasswordCallback pwdCB
= new PasswordCallback("password: ",
96 callbacks
[0] = nameCB
;
98 this.handler
.handle(callbacks
);
99 username
= nameCB
.getName();
100 password
= pwdCB
.getPassword();
104 if (properties
.containsKey(Registry
.SASL_USERNAME
))
105 username
= (String
) properties
.get(Registry
.SASL_USERNAME
);
108 callbacks
= new Callback
[1];
109 final NameCallback nameCB
;
110 final String defaultName
= System
.getProperty("user.name");
111 if (defaultName
== null)
112 nameCB
= new NameCallback("username: ");
114 nameCB
= new NameCallback("username: ", defaultName
);
115 callbacks
[0] = nameCB
;
116 this.handler
.handle(callbacks
);
117 username
= nameCB
.getName();
119 if (properties
.containsKey(Registry
.SASL_PASSWORD
))
120 password
= ((String
) properties
.get(Registry
.SASL_PASSWORD
)).toCharArray();
123 callbacks
= new Callback
[1];
124 final PasswordCallback pwdCB
= new PasswordCallback("password: ",
126 callbacks
[0] = pwdCB
;
127 this.handler
.handle(callbacks
);
128 password
= pwdCB
.getPassword();
131 if (password
== null)
132 throw new SaslException("null password supplied");
133 final CPStringBuilder sb
= new CPStringBuilder();
134 if (authorizationID
!= null)
135 sb
.append(authorizationID
);
140 this.complete
= true;
141 final byte[] response
= sb
.toString().getBytes("UTF-8");
146 if (x
instanceof SaslException
)
147 throw (SaslException
) x
;
148 throw new SaslException("evaluateChallenge()", x
);
152 protected String
getNegotiatedQOP()
154 return Registry
.QOP_AUTH
;