|
1
9 package org.jboss.portal.core.security.jaas;
10
11 import java.util.Collections  ;
12 import java.util.Map ;
13 import java.util.WeakHashMap ;
14 import java.io.Serializable ;
15
16 import javax.security.auth.Subject ;
17 import javax.security.auth.callback.Callback ;
18 import javax.security.auth.callback.CallbackHandler ;
19 import javax.security.auth.callback.PasswordCallback ;
20 import javax.security.auth.callback.UnsupportedCallbackException ;
21 import javax.security.auth.login.LoginException ;
22 import javax.security.auth.spi.LoginModule ;
23
24
32 public class CacheLoginModule implements LoginModule
33 {
34
35
36 private static final Map cache = Collections.synchronizedMap(new WeakHashMap ());
37
38
48 public static Handle cache(String key, String userName, String password)
49 {
50 Handle handle = new Handle(key);
51 cache.put(handle, new UserNamePassword(userName, password));
52 return handle;
53 }
54
55 private Subject subject;
56 private CallbackHandler callbackHandler;
57 private Map sharedState;
58 private Map options;
59
60 public void initialize(Subject subject, CallbackHandler callbackHandler, Map sharedState, Map options)
61 {
62 this.subject = subject;
63 this.callbackHandler = callbackHandler;
64 this.sharedState = sharedState;
65 this.options = options;
66 }
67
68 public boolean login() throws LoginException
69 {
70 String key = null;
71 try
72 {
73 PasswordCallback pc = new PasswordCallback ("Password: ", false);;
74 Callback [] callbacks = {pc};
75 callbackHandler.handle(callbacks);
76 char[] tmp = pc.getPassword();
77 if( tmp != null )
78 {
79 char[] keyAsChars = new char[tmp.length];
80 System.arraycopy(tmp, 0, keyAsChars, 0, tmp.length);
81 pc.clearPassword();
82 key = new String (keyAsChars);
83 }
84 }
85 catch(java.io.IOException ioe)
86 {
87 throw new LoginException (ioe.toString());
88 }
89 catch(UnsupportedCallbackException uce)
90 {
91 throw new LoginException ("CallbackHandler does not support: " + uce.getCallback());
92 }
93
94 UserNamePassword up = null;
96 if (key != null)
97 {
98 Handle handle = new Handle(key);
99 up = (UserNamePassword)cache.remove(handle);
100 if (up != null)
101 {
102 sharedState.put("javax.security.auth.login.name", up.userName);
103 sharedState.put("javax.security.auth.login.password", up.password);
104 }
105 else
106 {
107 }
109 }
110 else
111 {
112 }
114 return true;
115 }
116
117 public boolean commit() throws LoginException
118 {
119 return true;
120 }
121
122 public boolean abort() throws LoginException
123 {
124 return true;
125 }
126
127 public boolean logout() throws LoginException
128 {
129 return true;
130 }
131
132
138 private static class UserNamePassword
139 {
140 private final String userName;
141 private final String password;
142 private UserNamePassword(String userName, String password)
143 {
144 if (userName == null)
145 {
146 throw new IllegalArgumentException ("No null user name");
147 }
148 if (password == null)
149 {
150 throw new IllegalArgumentException ("No null password");
151 }
152 this.userName = userName;
153 this.password = password;
154 }
155 }
156
157
160 public static class Handle implements Serializable
161 {
162 private final String key;
163 private Handle(String key)
164 {
165 if (key == null)
166 {
167 throw new IllegalArgumentException ();
168 }
169 this.key = key;
170 }
171 public int hashCode()
172 {
173 return key.hashCode();
174 }
175 public boolean equals(Object obj)
176 {
177 if (obj == this)
178 {
179 return true;
180 }
181 if (obj instanceof Handle)
182 {
183 Handle other = (Handle)obj;
184 return other.key.equals(key);
185 }
186 return false;
187 }
188 }
189 }
190 |
Popular Tags |
Java API By Example, From Geeks To Geeks.