| /** |
| * 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.kerby.kerberos.kerb.integration.test.sasl; |
| |
| import org.apache.kerby.kerberos.kerb.integration.test.AppServer; |
| import org.apache.kerby.kerberos.kerb.integration.test.Transport; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.sasl.AuthorizeCallback; |
| import javax.security.sasl.Sasl; |
| import javax.security.sasl.SaslException; |
| import javax.security.sasl.SaslServer; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class SaslAppServer extends AppServer { |
| private String mechanism; |
| private String serviceProtocol; |
| private String serverFqdn; |
| |
| public SaslAppServer(String[] args) throws Exception { |
| super(args); |
| |
| this.mechanism = "GSSAPI"; |
| this.serviceProtocol = args[1]; |
| this.serverFqdn = args[2]; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| new SaslAppServer(args).run(); |
| } |
| |
| @Override |
| protected void usage(String[] args) { |
| if (args.length < 3) { |
| System.err.println("Usage: SaslAppServer " |
| + "<ListenPort> <service-protocol> <server-fqdn>"); |
| throw new RuntimeException("Usage: SaslAppServer " |
| + "<ListenPort> <service-protocol> <server-fqdn>"); |
| } |
| } |
| |
| @Override |
| protected void onConnection(Transport.Connection conn) throws Exception { |
| // System.out.print("Starting negotiating security context"); |
| |
| //mechanism, protocol, serverId, saslProperties, callback |
| CallbackHandler callbackHandler = new SaslGssCallbackHandler(); |
| Map<String, Object> props = new HashMap<>(); |
| props.put(Sasl.QOP, "auth"); |
| |
| SaslServer ss = Sasl.createSaslServer(mechanism, |
| serviceProtocol, serverFqdn, props, callbackHandler); |
| Transport.Message msg = conn.recvMessage(); |
| while (!ss.isComplete()) { |
| try { |
| byte[] respToken = ss.evaluateResponse(msg.body); |
| if (ss.isComplete()) { |
| conn.sendMessage("OK", respToken); |
| } else { |
| conn.sendMessage("CONT", respToken); |
| msg = conn.recvMessage(); |
| } |
| |
| } catch (SaslException e) { |
| conn.sendMessage("ERR", null); |
| ss.dispose(); |
| break; |
| } |
| } |
| |
| // System.out.print("Context Established! "); |
| |
| doWith(ss, props, conn); |
| |
| ss.dispose(); |
| } |
| |
| protected void doWith(SaslServer ss, Map<String, Object> props, |
| Transport.Connection conn) throws IOException, Exception { |
| conn.recvToken(); |
| //byte[] token = conn.recvToken(); |
| //String str = new String(token, StandardCharsets.UTF_8); |
| // System.out.println("Received data \"" |
| // + str + "\" of length " + str.length()); |
| } |
| |
| public static class SaslGssCallbackHandler implements CallbackHandler { |
| |
| @Override |
| public void handle(Callback[] callbacks) throws |
| UnsupportedCallbackException { |
| AuthorizeCallback ac = null; |
| for (Callback callback : callbacks) { |
| if (callback instanceof AuthorizeCallback) { |
| ac = (AuthorizeCallback) callback; |
| } else { |
| throw new UnsupportedCallbackException(callback, |
| "Unrecognized SASL GSSAPI Callback"); |
| } |
| } |
| if (ac != null) { |
| String authid = ac.getAuthenticationID(); |
| String authzid = ac.getAuthorizationID(); |
| if (authid.equals(authzid)) { |
| ac.setAuthorized(true); |
| } else { |
| ac.setAuthorized(false); |
| } |
| if (ac.isAuthorized()) { |
| // System.out.println("SASL server GSSAPI callback: setting " |
| //+ "canonicalized client ID: " + authzid); |
| ac.setAuthorizedID(authzid); |
| } |
| } |
| } |
| } |
| } |