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1   /*
2    * This file is part of Waarp Project (named also Waarp or GG).
3    *
4    *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
5    *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
6    * individual contributors.
7    *
8    *  All Waarp Project is free software: you can redistribute it and/or
9    * modify it under the terms of the GNU General Public License as published by
10   * the Free Software Foundation, either version 3 of the License, or (at your
11   * option) any later version.
12   *
13   * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
14   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15   * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16   *
17   *  You should have received a copy of the GNU General Public License along with
18   * Waarp . If not, see <http://www.gnu.org/licenses/>.
19   */
20  package org.waarp.ftp.core.command.access;
21  
22  import org.waarp.common.command.NextCommandReply;
23  import org.waarp.common.command.exception.Reply421Exception;
24  import org.waarp.common.command.exception.Reply501Exception;
25  import org.waarp.common.command.exception.Reply530Exception;
26  import org.waarp.ftp.core.command.AbstractCommand;
27  
28  /**
29   * PASS command
30   */
31  public class PASS extends AbstractCommand {
32    @Override
33    public final void exec()
34        throws Reply421Exception, Reply501Exception, Reply530Exception {
35      if (!hasArg()) {
36        invalidCurrentCommand();
37        throw new Reply501Exception("Need password as argument");
38      }
39      final String password = getArg();
40      if (getSession().getAuth() == null) {
41        getSession().reinitFtpAuth();
42        throw new Reply530Exception("No user specified");
43      }
44      final NextCommandReply nextCommandReply;
45      try {
46        nextCommandReply = getSession().getAuth().setPassword(password);
47      } catch (final Reply530Exception e) {
48        getSession().reinitFtpAuth();
49        throw e;
50      }
51      setExtraNextCommand(nextCommandReply.command);
52      getSession().setReplyCode(nextCommandReply.reply, nextCommandReply.message);
53    }
54  
55  }