01: /*
02: * This file is part of DrFTPD, Distributed FTP Daemon.
03: *
04: * DrFTPD is free software; you can redistribute it and/or modify
05: * it under the terms of the GNU General Public License as published by
06: * the Free Software Foundation; either version 2 of the License, or
07: * (at your option) any later version.
08: *
09: * DrFTPD is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12: * GNU General Public License for more details.
13: *
14: * You should have received a copy of the GNU General Public License
15: * along with DrFTPD; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: */
18: package org.drftpd.io;
19:
20: import java.io.IOException;
21: import java.io.OutputStream;
22:
23: /**
24: * OutputStream filter that strips the \r from \r\n sequences.
25: *
26: * @author mog
27: * @version $Id: StripAsciiOutputStream.java 1513 2006-10-13 22:41:08Z tdsoul $
28: */
29: public class StripAsciiOutputStream extends OutputStream {
30: private OutputStream _out;
31: boolean _lastWasCarriageReturn = false;
32:
33: public StripAsciiOutputStream(OutputStream out) {
34: _out = out;
35: }
36:
37: public void write(int b) throws IOException {
38: if (b == '\r') {
39: _lastWasCarriageReturn = true;
40:
41: return;
42: }
43:
44: if (_lastWasCarriageReturn) {
45: _lastWasCarriageReturn = false;
46:
47: if (b != '\n') {
48: _out.write('\r');
49: }
50: }
51:
52: _out.write(b);
53: }
54:
55: public void close() throws IOException {
56: _out.close();
57: }
58:
59: public void flush() throws IOException {
60: _out.flush();
61: }
62: }
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