1 /*
2 * $Id: RequestUtils.java 471717 2006-11-06 12:50:18Z husted $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.struts2;
22
23 import javax.servlet.http.HttpServletRequest;
24
25
26 /***
27 * Request handling utility class.
28 */
29 public class RequestUtils {
30
31 /***
32 * Retrieves the current request servlet path.
33 * Deals with differences between servlet specs (2.2 vs 2.3+)
34 *
35 * @param request the request
36 * @return the servlet path
37 */
38 public static String getServletPath(HttpServletRequest request) {
39 String servletPath = request.getServletPath();
40
41 if (null != servletPath && !"".equals(servletPath)) {
42 return servletPath;
43 }
44
45 String requestUri = request.getRequestURI();
46 int startIndex = request.getContextPath().equals("") ? 0 : request.getContextPath().length();
47 int endIndex = request.getPathInfo() == null ? requestUri.length() : requestUri.lastIndexOf(request.getPathInfo());
48
49 if (startIndex > endIndex) { // this should not happen
50 endIndex = startIndex;
51 }
52
53 return requestUri.substring(startIndex, endIndex);
54 }
55
56 }