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.extension;
21
22 import org.waarp.common.command.ReplyCode;
23 import org.waarp.common.command.exception.CommandAbstractException;
24 import org.waarp.common.command.exception.Reply501Exception;
25 import org.waarp.ftp.core.command.AbstractCommand;
26
27 /**
28 * XCRC command: takes a filename and returns the CRC of the file
29 */
30 public class XCRC extends AbstractCommand {
31 @Override
32 public final void exec() throws CommandAbstractException {
33 if (!hasArg()) {
34 invalidCurrentCommand();
35 throw new Reply501Exception("Need a pathname as argument");
36 }
37 final String filename = getArg();
38
39 final String crc = Long.toString(getSession().getDir().getCRC(filename));
40 getSession().setReplyCode(ReplyCode.REPLY_250_REQUESTED_FILE_ACTION_OKAY,
41 crc + " \"" + filename + "\" CRC");
42 }
43
44 }