1 /**
2 * This file Copyright (c) 2014 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.voting.voters;
35
36 import java.util.regex.Pattern;
37
38 import org.apache.commons.lang.StringUtils;
39
40
41 /**
42 * A voter taking a plain regex pattern which has to matched against the specified request header.
43 * <p>
44 * Parameters (as Magnolia's configuration nodes):
45 * <ul>
46 * <li>pattern: a regex pattern
47 * <li>headerName: the name of the request header to evaluate.
48 * </ul>
49 */
50 public class RequestHeaderPatternRegexVoter extends RequestHeaderPatternVoter {
51
52 private Pattern regex;
53
54 @Override
55 protected boolean boolVote(Object value) {
56 String headerValue = resolveRequestHeaderFromValue(value, getHeaderName());
57
58 if (regex == null || StringUtils.isEmpty(headerValue)) {
59 return false;
60 }
61
62 return regex.matcher(headerValue).matches();
63 }
64
65 @Override
66 public void setPattern(String pattern) {
67 super.setPattern(pattern);
68 this.regex = Pattern.compile(pattern);
69 }
70
71 }