Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 86 | rm5248 | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
||
| 3 | * or more contributor license agreements. See the NOTICE file |
||
| 4 | * distributed with this work for additional information |
||
| 5 | * regarding copyright ownership. The ASF licenses this file |
||
| 6 | * to you under the Apache License, Version 2.0 (the |
||
| 7 | * "License"); you may not use this file except in compliance |
||
| 8 | * with the License. You may obtain a copy of the License at |
||
| 9 | * |
||
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
||
| 11 | * |
||
| 12 | * Unless required by applicable law or agreed to in writing, |
||
| 13 | * software distributed under the License is distributed on an |
||
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
||
| 15 | * KIND, either express or implied. See the License for the |
||
| 16 | * specific language governing permissions and limitations |
||
| 17 | * under the License. |
||
| 18 | */ |
||
| 19 | package org.apache.sshd.server.auth; |
||
| 20 | |||
| 21 | import org.apache.sshd.common.NamedFactory; |
||
| 22 | import org.apache.sshd.common.SshConstants; |
||
| 23 | import org.apache.sshd.common.SshException; |
||
| 24 | import org.apache.sshd.common.util.Buffer; |
||
| 25 | import org.apache.sshd.server.PasswordAuthenticator; |
||
| 26 | import org.apache.sshd.server.UserAuth; |
||
| 27 | import org.apache.sshd.server.session.ServerSession; |
||
| 28 | |||
| 29 | /** |
||
| 30 | * TODO Add javadoc |
||
| 31 | * |
||
| 32 | * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
||
| 33 | */ |
||
| 34 | public class UserAuthKeyboardInteractive extends AbstractUserAuth { |
||
| 35 | |||
| 36 | public static class Factory implements NamedFactory<UserAuth> { |
||
| 37 | public String getName() { |
||
| 38 | return "keyboard-interactive"; |
||
| 39 | } |
||
| 40 | public UserAuth create() { |
||
| 41 | return new UserAuthKeyboardInteractive(); |
||
| 42 | } |
||
| 43 | } |
||
| 44 | |||
| 45 | @Override |
||
| 46 | protected Boolean doAuth(Buffer buffer, boolean init) throws Exception { |
||
| 47 | if (init) { |
||
| 48 | // Prompt for password |
||
| 49 | buffer = session.createBuffer(SshConstants.SSH_MSG_USERAUTH_INFO_REQUEST); |
||
| 50 | buffer.putString("Password authentication"); |
||
| 51 | buffer.putString(""); |
||
| 52 | buffer.putString("en-US"); |
||
| 53 | buffer.putInt(1); |
||
| 54 | buffer.putString("Password: "); |
||
| 55 | buffer.putBoolean(false); |
||
| 56 | session.writePacket(buffer); |
||
| 57 | return null; |
||
| 58 | } else { |
||
| 59 | byte cmd = buffer.getByte(); |
||
| 60 | if (cmd != SshConstants.SSH_MSG_USERAUTH_INFO_RESPONSE) { |
||
| 61 | throw new SshException("Received unexpected message: " + cmd); |
||
| 62 | } |
||
| 63 | int num = buffer.getInt(); |
||
| 64 | if (num != 1) { |
||
| 65 | throw new SshException("Expected 1 response from user but received " + num); |
||
| 66 | } |
||
| 67 | String password = buffer.getString(); |
||
| 68 | return checkPassword(session, username, password); |
||
| 69 | } |
||
| 70 | } |
||
| 71 | |||
| 72 | private boolean checkPassword(ServerSession session, String username, String password) throws Exception { |
||
| 73 | PasswordAuthenticator auth = session.getFactoryManager().getPasswordAuthenticator(); |
||
| 74 | if (auth != null) { |
||
| 75 | return auth.authenticate(username, password, session); |
||
| 76 | } |
||
| 77 | throw new Exception("No PasswordAuthenticator configured"); |
||
| 78 | } |
||
| 79 | |||
| 80 | } |