| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.qpid.server.security.auth.sasl; |
| |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.log4j.Logger; |
| |
| import org.apache.qpid.server.security.auth.database.PrincipalDatabase; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.auth.login.AccountNotFoundException; |
| import javax.security.sasl.AuthorizeCallback; |
| import java.io.IOException; |
| import java.security.Principal; |
| import java.util.Map; |
| |
| public abstract class UsernamePasswordInitialiser implements AuthenticationProviderInitialiser |
| { |
| protected static final Logger _logger = Logger.getLogger(UsernamePasswordInitialiser.class); |
| |
| private ServerCallbackHandler _callbackHandler; |
| |
| private static class ServerCallbackHandler implements CallbackHandler |
| { |
| private final PrincipalDatabase _principalDatabase; |
| |
| protected ServerCallbackHandler(PrincipalDatabase database) |
| { |
| _principalDatabase = database; |
| } |
| |
| public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException |
| { |
| Principal username = null; |
| for (Callback callback : callbacks) |
| { |
| if (callback instanceof NameCallback) |
| { |
| username = new UsernamePrincipal(((NameCallback) callback).getDefaultName()); |
| } |
| else if (callback instanceof PasswordCallback) |
| { |
| try |
| { |
| _principalDatabase.setPassword(username, (PasswordCallback) callback); |
| } |
| catch (AccountNotFoundException e) |
| { |
| // very annoyingly the callback handler does not throw anything more appropriate than |
| // IOException |
| IOException ioe = new IOException("Error looking up user " + e); |
| ioe.initCause(e); |
| throw ioe; |
| } |
| } |
| else if (callback instanceof AuthorizeCallback) |
| { |
| ((AuthorizeCallback) callback).setAuthorized(true); |
| } |
| else |
| { |
| throw new UnsupportedCallbackException(callback); |
| } |
| } |
| } |
| } |
| |
| public void initialise(String baseConfigPath, Configuration configuration, |
| Map<String, PrincipalDatabase> principalDatabases) throws Exception |
| { |
| String principalDatabaseName = configuration.getString(baseConfigPath + ".principal-database"); |
| PrincipalDatabase db = principalDatabases.get(principalDatabaseName); |
| |
| initialise(db); |
| } |
| |
| public void initialise(PrincipalDatabase db) |
| { |
| if (db == null) |
| { |
| throw new NullPointerException("Cannot initialise with a null Principal database."); |
| } |
| |
| _callbackHandler = new ServerCallbackHandler(db); |
| } |
| |
| public CallbackHandler getCallbackHandler() |
| { |
| return _callbackHandler; |
| } |
| |
| public Map<String, ?> getProperties() |
| { |
| // there are no properties required for the CRAM-MD5 implementation |
| return null; |
| } |
| } |