/*

  * Copyright 2008 the original author or authors.

  *

  * Licensed 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.mockftpserver.fake.command;

 import org.mockftpserver.core.command.Command;

 import org.mockftpserver.core.command.ReplyCodes;

 import org.mockftpserver.core.session.Session;

 import org.mockftpserver.core.session.SessionKeys;

 import org.mockftpserver.fake.UserAccount;

 /**

  * CommandHandler for the PASS command. Handler logic:

  * <ol>

  * <li>If the required password parameter is missing, then reply with 501</li>

  * <li>If this command was not preceded by a valid USER command, then reply with 503</li>

  * <li>If the user account configured for the named user does not exist or is not valid, then reply with 530</li>

  * <li>If the specified password is not correct, then reply with 530</li>

  * <li>Otherwise, reply with 230</li>

  * </ol>

  *

  * @author Chris Mair

  * @version $Revision: 182 $ - $Date: 2008-11-30 21:37:49 -0500 (Sun, 30 Nov 2008) $

  */

 public class PassCommandHandler extends AbstractFakeCommandHandler {

     protected void handle(Command command, Session session) {

         String password = command.getRequiredParameter(0);

         String username = (String) getRequiredSessionAttribute(session, SessionKeys.USERNAME);

         if (validateUserAccount(username, session)) {

             UserAccount userAccount = getServerConfiguration().getUserAccount(username);

             if (userAccount.isValidPassword(password)) {

                 int replyCode = (userAccount.isAccountRequiredForLogin()) ? ReplyCodes.PASS_NEED_ACCOUNT : ReplyCodes.PASS_OK;

                 String replyMessageKey = (userAccount.isAccountRequiredForLogin()) ? "pass.needAccount" : "pass";

                 login(userAccount, session, replyCode, replyMessageKey);

             } else {

                 sendReply(session, ReplyCodes.PASS_LOG_IN_FAILED, "pass.loginFailed");

             }

         }

     }

 }