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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.rfc4217;
21  
22  import org.waarp.common.command.ReplyCode;
23  import org.waarp.common.command.exception.CommandAbstractException;
24  import org.waarp.common.command.exception.Reply500Exception;
25  import org.waarp.common.command.exception.Reply534Exception;
26  import org.waarp.ftp.core.command.AbstractCommand;
27  
28  /**
29   * CCC command
30   */
31  public class CCC extends AbstractCommand {
32  
33    @Override
34    public final void exec() throws CommandAbstractException {
35      if (!getSession().getConfiguration().getFtpInternalConfiguration()
36                       .isAcceptAuthProt()) {
37        throw new Reply534Exception("CCC not supported");
38      }
39      if (!getSession().isSslReady()) {
40        // Not SSL
41        throw new Reply500Exception("Session already not using SSL / TLS");
42      }
43      getSession().setSsl(false);
44      getSession().setReplyCode(ReplyCode.REPLY_200_COMMAND_OKAY, null);
45    }
46  
47  }