1 //
2 // ========================================================================
3 // Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.websocket.common.io.payload;
20
21 import java.nio.ByteBuffer;
22
23 import org.eclipse.jetty.websocket.common.OpCode;
24
25 /**
26 * Validate UTF8 correctness for {@link OpCode#CLOSE} Reason message.
27 */
28 public class CloseReasonValidator extends UTF8Validator implements PayloadProcessor
29 {
30 private int statusCodeBytes = 2;
31
32 @Override
33 public void process(ByteBuffer payload)
34 {
35 if ((payload == null) || (payload.remaining() <= 2))
36 {
37 // no validation needed
38 return;
39 }
40
41 ByteBuffer copy = payload.slice();
42 while (statusCodeBytes > 0)
43 {
44 copy.get();
45 statusCodeBytes--;
46 }
47
48 super.process(copy);
49 }
50 }