Source for gnu.javax.net.ssl.provider.PreSharedKeyManagerFactoryImpl

   1: /* PreSharedKeyManagerFactory.java --
   2:    Copyright (C) 2006  Free Software Foundation, Inc.
   3: 
   4: This file is a part of GNU Classpath.
   5: 
   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.
  10: 
  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.
  15: 
  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
  19: USA
  20: 
  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
  24: combination.
  25: 
  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. */
  37: 
  38: 
  39: package gnu.javax.net.ssl.provider;
  40: 
  41: import gnu.javax.net.ssl.PreSharedKeyManager;
  42: import gnu.javax.net.ssl.PreSharedKeyManagerParameters;
  43: 
  44: import java.security.InvalidAlgorithmParameterException;
  45: import java.security.KeyManagementException;
  46: import java.security.KeyStore;
  47: import java.security.KeyStoreException;
  48: import java.security.NoSuchAlgorithmException;
  49: import java.security.UnrecoverableKeyException;
  50: import java.util.Iterator;
  51: 
  52: import javax.crypto.SecretKey;
  53: import javax.net.ssl.KeyManager;
  54: import javax.net.ssl.KeyManagerFactorySpi;
  55: import javax.net.ssl.ManagerFactoryParameters;
  56: 
  57: /**
  58:  * @author Casey Marshall (csm@gnu.org)
  59:  */
  60: public class PreSharedKeyManagerFactoryImpl
  61:   extends KeyManagerFactorySpi
  62: {
  63:   PreSharedKeyManagerParameters params;
  64: 
  65:   /* (non-Javadoc)
  66:    * @see javax.net.ssl.KeyManagerFactorySpi#engineGetKeyManagers()
  67:    */
  68:   @Override protected KeyManager[] engineGetKeyManagers()
  69:   {
  70:     if (params == null)
  71:       throw new IllegalStateException("not initialized");
  72:     return new KeyManager[] { new Manager() };
  73:   }
  74: 
  75:   /* (non-Javadoc)
  76:    * @see javax.net.ssl.KeyManagerFactorySpi#engineInit(javax.net.ssl.ManagerFactoryParameters)
  77:    */
  78:   @Override protected void engineInit(ManagerFactoryParameters params)
  79:     throws InvalidAlgorithmParameterException
  80:   {
  81:     if (!(params instanceof PreSharedKeyManagerParameters))
  82:       throw new InvalidAlgorithmParameterException("only supports gnu.javax.net.ssl.PreSharedKeyManagerParameters");
  83:     params = (PreSharedKeyManagerParameters) params;
  84:   }
  85: 
  86:   /* (non-Javadoc)
  87:    * @see javax.net.ssl.KeyManagerFactorySpi#engineInit(java.security.KeyStore, char[])
  88:    */
  89:   @Override protected void engineInit(KeyStore store, char[] passwd)
  90:     throws KeyStoreException, NoSuchAlgorithmException,
  91:            UnrecoverableKeyException
  92:   {
  93:     // XXX Could implement this.
  94:   }
  95: 
  96:   class Manager implements PreSharedKeyManager
  97:   {
  98:     Manager()
  99:     {
 100:     }
 101: 
 102:     /* (non-Javadoc)
 103:      * @see gnu.javax.net.ssl.PreSharedKeyManager#getKey(java.lang.String)
 104:      */
 105:     public SecretKey getKey(String name) throws KeyManagementException
 106:     {
 107:       return params.getKey(name);
 108:     }
 109: 
 110:     public String chooseIdentityHint()
 111:     {
 112:       Iterator<String> it = params.identities();
 113:       if (it.hasNext())
 114:         return it.next();
 115:       return null;
 116:     }
 117:   }
 118: }