1 /**
2 * This file Copyright (c) 2014-2017 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.virtualuri.mapping;
35
36 import java.net.URI;
37 import java.util.Optional;
38 import java.util.regex.Matcher;
39 import java.util.regex.Pattern;
40
41 import org.apache.commons.lang3.StringUtils;
42 import org.slf4j.Logger;
43 import org.slf4j.LoggerFactory;
44
45 /**
46 * Virtual uri mapping implementation which combines functionality of {@link HostBasedVirtualUriMapping} and {@link RegexpVirtualUriMapping}.
47 */
48 public class HostBasedRegexpVirtualUriMapping extends HostBasedVirtualUriMapping {
49
50 private static final Logger log = LoggerFactory.getLogger(HostBasedRegexpVirtualUriMapping.class);
51
52 private Pattern regexp;
53
54 @Override
55 public Optional<Result> mapUri(URI uri) {
56
57 if (regexp != null) {
58 String uriString = uri.toString();
59 Matcher matcher = regexp.matcher(uriString);
60
61 if (matcher.find()) {
62 Optional<String> hostMapping = tryToMapHost();
63 String replaced;
64 try {
65 if (hostMapping.isPresent() && StringUtils.isNotEmpty(hostMapping.get())) {
66 replaced = matcher.replaceAll(hostMapping.get());
67 } else {
68 replaced = matcher.replaceAll(getToUri());
69 }
70
71 int groupCount = matcher.groupCount() + 1;
72 Result result = new Result(replaced, groupCount, this);
73
74 return Optional.of(result);
75 } catch (IndexOutOfBoundsException e) {
76 log.warn("{} misconfigured: {}", toString(), e.getMessage());
77 }
78 }
79 }
80
81 return Optional.empty();
82 }
83
84 @Override
85 public void setFromUri(String fromUri) {
86 setInternalFromUri(fromUri);
87
88 if (StringUtils.isNotEmpty(fromUri)) {
89 this.regexp = Pattern.compile(fromUri);
90 }
91 }
92 }