| /* |
| * |
| * 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.amqplain; |
| |
| import java.io.IOException; |
| |
| 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.sasl.AuthorizeCallback; |
| import javax.security.sasl.SaslException; |
| import javax.security.sasl.SaslServer; |
| |
| import org.apache.mina.common.ByteBuffer; |
| import org.apache.qpid.framing.AMQFrameDecodingException; |
| import org.apache.qpid.framing.FieldTable; |
| import org.apache.qpid.framing.FieldTableFactory; |
| |
| public class AmqPlainSaslServer implements SaslServer |
| { |
| public static final String MECHANISM = "AMQPLAIN"; |
| |
| private CallbackHandler _cbh; |
| |
| private String _authorizationId; |
| |
| private boolean _complete = false; |
| |
| public AmqPlainSaslServer(CallbackHandler cbh) |
| { |
| _cbh = cbh; |
| } |
| |
| public String getMechanismName() |
| { |
| return MECHANISM; |
| } |
| |
| public byte[] evaluateResponse(byte[] response) throws SaslException |
| { |
| try |
| { |
| final FieldTable ft = FieldTableFactory.newFieldTable(ByteBuffer.wrap(response), response.length); |
| String username = (String) ft.getString("LOGIN"); |
| // we do not care about the prompt but it throws if null |
| NameCallback nameCb = new NameCallback("prompt", username); |
| // we do not care about the prompt but it throws if null |
| PasswordCallback passwordCb = new PasswordCallback("prompt", false); |
| // TODO: should not get pwd as a String but as a char array... |
| String pwd = (String) ft.getString("PASSWORD"); |
| AuthorizeCallback authzCb = new AuthorizeCallback(username, username); |
| Callback[] callbacks = new Callback[]{nameCb, passwordCb, authzCb}; |
| _cbh.handle(callbacks); |
| String storedPwd = new String(passwordCb.getPassword()); |
| if (storedPwd.equals(pwd)) |
| { |
| _complete = true; |
| } |
| if (authzCb.isAuthorized() && _complete) |
| { |
| _authorizationId = authzCb.getAuthenticationID(); |
| return null; |
| } |
| else |
| { |
| throw new SaslException("Authentication failed"); |
| } |
| } |
| catch (AMQFrameDecodingException e) |
| { |
| throw new SaslException("Unable to decode response: " + e, e); |
| } |
| catch (IOException e) |
| { |
| throw new SaslException("Error processing data: " + e, e); |
| } |
| catch (UnsupportedCallbackException e) |
| { |
| throw new SaslException("Unable to obtain data from callback handler: " + e, e); |
| } |
| } |
| |
| public boolean isComplete() |
| { |
| return _complete; |
| } |
| |
| public String getAuthorizationID() |
| { |
| return _authorizationId; |
| } |
| |
| public byte[] unwrap(byte[] incoming, int offset, int len) throws SaslException |
| { |
| throw new SaslException("Unsupported operation"); |
| } |
| |
| public byte[] wrap(byte[] outgoing, int offset, int len) throws SaslException |
| { |
| throw new SaslException("Unsupported operation"); |
| } |
| |
| public Object getNegotiatedProperty(String propName) |
| { |
| return null; |
| } |
| |
| public void dispose() throws SaslException |
| { |
| _cbh = null; |
| } |
| } |