1   package com.atlassian.user.impl.osuser.security.authentication;
2   
3   import com.atlassian.user.EntityException;
4   import com.atlassian.user.repository.RepositoryIdentifier;
5   import com.atlassian.user.security.authentication.Authenticator;
6   import com.opensymphony.user.provider.CredentialsProvider;
7   
8   import java.util.Iterator;
9   import java.util.List;
10  
11  /**
12   * Authenticates against the first provider that handles the username.
13   * If authentication fails, it will <b>not</b> fall back or try another provider
14   */
15  public class OSUListOfCredentialProvidersAuthenticator implements Authenticator
16  {
17      private final RepositoryIdentifier repository;
18      private final List credentialProviders;
19  
20      public OSUListOfCredentialProvidersAuthenticator(RepositoryIdentifier repository, List credentialProviders)
21      {
22          this.repository = repository;
23          this.credentialProviders = credentialProviders;
24      }
25  
26      public boolean authenticate(String username, String password) throws EntityException
27      {
28          Iterator iter = credentialProviders.iterator();
29          while (iter.hasNext())
30          {
31              CredentialsProvider provider = (CredentialsProvider) iter.next();
32              if (provider.handles(username))
33                  return provider.authenticate(username, password);
34          }
35  
36          return false;
37      }
38  
39      public RepositoryIdentifier getRepository()
40      {
41          return repository;
42      }
43  }