1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.webdav.methods;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.GetterUtil;
28  import com.liferay.portal.kernel.util.StringPool;
29  import com.liferay.portal.webdav.WebDAVException;
30  import com.liferay.portal.webdav.WebDAVRequest;
31  import com.liferay.portal.webdav.WebDAVStorage;
32  import com.liferay.portal.webdav.WebDAVUtil;
33  
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  
37  /**
38   * <a href="UnlockMethodImpl.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Alexander Chow
41   *
42   */
43  public class UnlockMethodImpl implements Method {
44  
45      public int process(WebDAVRequest webDavRequest) throws WebDAVException {
46          WebDAVStorage storage = webDavRequest.getWebDAVStorage();
47  
48          String token = getToken(webDavRequest.getHttpServletRequest());
49  
50          if (!storage.isSupportsClassTwo()) {
51              return HttpServletResponse.SC_METHOD_NOT_ALLOWED;
52          }
53  
54          if (storage.unlockResource(webDavRequest, token)) {
55              return HttpServletResponse.SC_NO_CONTENT;
56          }
57          else {
58              return HttpServletResponse.SC_PRECONDITION_FAILED;
59          }
60      }
61  
62      protected String getToken(HttpServletRequest request) {
63          String token = StringPool.BLANK;
64  
65          String value = GetterUtil.getString(request.getHeader("Lock-Token"));
66  
67          if (_log.isInfoEnabled()) {
68              _log.info("\"Lock-Token\" header is " + value);
69          }
70  
71          if (value.startsWith("<") && value.endsWith(">")) {
72              value = value.substring(1, value.length() - 1);
73          }
74  
75          int index = value.indexOf(WebDAVUtil.TOKEN_PREFIX);
76  
77          if (index >= 0) {
78              index += WebDAVUtil.TOKEN_PREFIX.length();
79  
80              if (index < value.length()) {
81                  token = GetterUtil.getString(value.substring(index));
82              }
83          }
84  
85          return token;
86      }
87  
88      private static Log _log = LogFactoryUtil.getLog(UnlockMethodImpl.class);
89  
90  }