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1   /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
2    *
3    * Licensed under the Apache License, Version 2.0 (the "License");
4    * you may not use this file except in compliance with the License.
5    * You may obtain a copy of the License at
6    *
7    *     http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  
16  package org.acegisecurity.providers.rcp;
17  
18  import org.acegisecurity.AuthenticationException;
19  import org.acegisecurity.AuthenticationManager;
20  import org.acegisecurity.GrantedAuthority;
21  
22  import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
23  
24  import org.springframework.beans.factory.InitializingBean;
25  
26  import org.springframework.util.Assert;
27  
28  
29  /**
30   * Server-side processor of a remote authentication request.<P>This bean requires no security interceptor to
31   * protect it. Instead, the bean uses the configured <code>AuthenticationManager</code> to resolve an authentication
32   * request.</p>
33   *
34   * @author Ben Alex
35   * @version $Id: RemoteAuthenticationManagerImpl.java 1496 2006-05-23 13:38:33Z benalex $
36   */
37  public class RemoteAuthenticationManagerImpl implements RemoteAuthenticationManager, InitializingBean {
38      //~ Instance fields ================================================================================================
39  
40      private AuthenticationManager authenticationManager;
41  
42      //~ Methods ========================================================================================================
43  
44      public void afterPropertiesSet() throws Exception {
45          Assert.notNull(this.authenticationManager, "authenticationManager is required");
46      }
47  
48      public GrantedAuthority[] attemptAuthentication(String username, String password)
49          throws RemoteAuthenticationException {
50          UsernamePasswordAuthenticationToken request = new UsernamePasswordAuthenticationToken(username, password);
51  
52          try {
53              return authenticationManager.authenticate(request).getAuthorities();
54          } catch (AuthenticationException authEx) {
55              throw new RemoteAuthenticationException(authEx.getMessage());
56          }
57      }
58  
59      public AuthenticationManager getAuthenticationManager() {
60          return authenticationManager;
61      }
62  
63      public void setAuthenticationManager(AuthenticationManager authenticationManager) {
64          this.authenticationManager = authenticationManager;
65      }
66  }