1 /**
2 * This file Copyright (c) 2010-2018 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.cms.filters;
35
36 import info.magnolia.cms.beans.runtime.MultipartForm;
37
38 import java.util.Collections;
39 import java.util.Enumeration;
40 import java.util.HashMap;
41 import java.util.HashSet;
42 import java.util.Map;
43 import java.util.Set;
44
45 import javax.servlet.http.HttpServletRequest;
46 import javax.servlet.http.HttpServletRequestWrapper;
47
48 /**
49 * HttpServletRequestWrapper that adds additional parameters passed in using multipart submit. The added parameters are
50 * taken from a {@link info.magnolia.cms.beans.runtime.MultipartForm} object. The wrapper is applied in the filter chain
51 * either by {@link info.magnolia.cms.filters.CosMultipartRequestFilter} or
52 * {@link info.magnolia.cms.filters.MultipartRequestFilter}.
53 *
54 * @see info.magnolia.cms.beans.runtime.MultipartForm
55 * @see info.magnolia.cms.filters.MultipartRequestFilter
56 * @see info.magnolia.cms.filters.CosMultipartRequestFilter
57 */
58 public class MultipartRequestWrapper extends HttpServletRequestWrapper {
59
60 private final MultipartForm form;
61
62 public MultipartRequestWrapper(HttpServletRequest request, MultipartForm form) {
63 super(request);
64 this.form = form;
65 }
66
67 @Override
68 public String getParameter(String name) {
69 String value = form.getParameter(name);
70 if (value == null) {
71 value = super.getParameter(name);
72 }
73 return value;
74 }
75
76 @Override
77 public Map getParameterMap() {
78 Map<String, String[]> parameterMap = new HashMap<String, String[]>();
79 parameterMap.putAll(super.getParameterMap());
80 parameterMap.putAll(form.getParameters());
81 return parameterMap;
82 }
83
84 @Override
85 public Enumeration getParameterNames() {
86 Set<String> parameterNames = new HashSet<String>(form.getParameters().keySet());
87 Enumeration enumeration = super.getParameterNames();
88 while (enumeration.hasMoreElements()) {
89 parameterNames.add((String) enumeration.nextElement());
90 }
91 return Collections.enumeration(parameterNames);
92 }
93
94 @Override
95 public String[] getParameterValues(String name) {
96 String[] value = form.getParameterValues(name);
97 if (value == null) {
98 value = super.getParameterValues(name);
99 }
100 return value;
101 }
102 }