| /* SRPAuthInfoProvider.java -- |
| Copyright (C) 2003, 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.crypto.sasl.srp; |
| |
| import gnu.java.security.Registry; |
| import gnu.java.security.util.Util; |
| import gnu.javax.crypto.sasl.IAuthInfoProvider; |
| import gnu.javax.crypto.sasl.NoSuchUserException; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.security.sasl.AuthenticationException; |
| |
| /** |
| * The SRP mechanism authentication information provider implementation. |
| */ |
| public class SRPAuthInfoProvider |
| implements IAuthInfoProvider |
| { |
| private PasswordFile passwordFile = null; |
| |
| // implicit 0-args constrcutor |
| |
| public void activate(Map context) throws AuthenticationException |
| { |
| try |
| { |
| if (context == null) |
| passwordFile = new PasswordFile(); |
| else |
| { |
| passwordFile = (PasswordFile) context.get(SRPRegistry.PASSWORD_DB); |
| if (passwordFile == null) |
| { |
| String pfn = (String) context.get(SRPRegistry.PASSWORD_FILE); |
| if (pfn == null) |
| passwordFile = new PasswordFile(); |
| else |
| passwordFile = new PasswordFile(pfn); |
| } |
| } |
| } |
| catch (IOException x) |
| { |
| throw new AuthenticationException("activate()", x); |
| } |
| } |
| |
| public void passivate() throws AuthenticationException |
| { |
| passwordFile = null; |
| } |
| |
| public boolean contains(String userName) throws AuthenticationException |
| { |
| if (passwordFile == null) |
| throw new AuthenticationException("contains()", |
| new IllegalStateException()); |
| boolean result = false; |
| try |
| { |
| result = passwordFile.contains(userName); |
| } |
| catch (IOException x) |
| { |
| throw new AuthenticationException("contains()", x); |
| } |
| return result; |
| } |
| |
| public Map lookup(Map userID) throws AuthenticationException |
| { |
| if (passwordFile == null) |
| throw new AuthenticationException("lookup()", new IllegalStateException()); |
| Map result = new HashMap(); |
| try |
| { |
| String userName = (String) userID.get(Registry.SASL_USERNAME); |
| if (userName == null) |
| throw new NoSuchUserException(""); |
| String mdName = (String) userID.get(SRPRegistry.MD_NAME_FIELD); |
| String[] data = passwordFile.lookup(userName, mdName); |
| result.put(SRPRegistry.USER_VERIFIER_FIELD, data[0]); |
| result.put(SRPRegistry.SALT_FIELD, data[1]); |
| result.put(SRPRegistry.CONFIG_NDX_FIELD, data[2]); |
| } |
| catch (Exception x) |
| { |
| if (x instanceof AuthenticationException) |
| throw (AuthenticationException) x; |
| throw new AuthenticationException("lookup()", x); |
| } |
| return result; |
| } |
| |
| public void update(Map userCredentials) throws AuthenticationException |
| { |
| if (passwordFile == null) |
| throw new AuthenticationException("update()", new IllegalStateException()); |
| try |
| { |
| String userName = (String) userCredentials.get(Registry.SASL_USERNAME); |
| String password = (String) userCredentials.get(Registry.SASL_PASSWORD); |
| String salt = (String) userCredentials.get(SRPRegistry.SALT_FIELD); |
| String config = (String) userCredentials.get(SRPRegistry.CONFIG_NDX_FIELD); |
| if (salt == null || config == null) |
| passwordFile.changePasswd(userName, password); |
| else |
| passwordFile.add(userName, password, Util.fromBase64(salt), config); |
| } |
| catch (Exception x) |
| { |
| if (x instanceof AuthenticationException) |
| throw (AuthenticationException) x; |
| throw new AuthenticationException("update()", x); |
| } |
| } |
| |
| public Map getConfiguration(String mode) throws AuthenticationException |
| { |
| if (passwordFile == null) |
| throw new AuthenticationException("getConfiguration()", |
| new IllegalStateException()); |
| Map result = new HashMap(); |
| try |
| { |
| String[] data = passwordFile.lookupConfig(mode); |
| result.put(SRPRegistry.SHARED_MODULUS, data[0]); |
| result.put(SRPRegistry.FIELD_GENERATOR, data[1]); |
| } |
| catch (Exception x) |
| { |
| if (x instanceof AuthenticationException) |
| throw (AuthenticationException) x; |
| throw new AuthenticationException("getConfiguration()", x); |
| } |
| return result; |
| } |
| } |