| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ServletUtils |
|
| 13.0;13 |
| 1 | package org.apache.turbine.util; | |
| 2 | ||
| 3 | ||
| 4 | import java.io.File; | |
| 5 | ||
| 6 | /* | |
| 7 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 8 | * or more contributor license agreements. See the NOTICE file | |
| 9 | * distributed with this work for additional information | |
| 10 | * regarding copyright ownership. The ASF licenses this file | |
| 11 | * to you under the Apache License, Version 2.0 (the | |
| 12 | * "License"); you may not use this file except in compliance | |
| 13 | * with the License. You may obtain a copy of the License at | |
| 14 | * | |
| 15 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 16 | * | |
| 17 | * Unless required by applicable law or agreed to in writing, | |
| 18 | * software distributed under the License is distributed on an | |
| 19 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 20 | * KIND, either express or implied. See the License for the | |
| 21 | * specific language governing permissions and limitations | |
| 22 | * under the License. | |
| 23 | */ | |
| 24 | ||
| 25 | ||
| 26 | import java.util.StringTokenizer; | |
| 27 | ||
| 28 | import javax.servlet.ServletConfig; | |
| 29 | import javax.servlet.ServletContext; | |
| 30 | ||
| 31 | import org.apache.commons.lang3.StringUtils; | |
| 32 | import org.apache.turbine.Turbine; | |
| 33 | ||
| 34 | /** | |
| 35 | * This is where common Servlet manipulation routines should go. | |
| 36 | * | |
| 37 | * @author <a href="mailto:gonzalo.diethelm@sonda.com">Gonzalo Diethelm</a> | |
| 38 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
| 39 | * @version $Id: ServletUtils.java 1854688 2019-03-03 10:36:42Z tv $ | |
| 40 | */ | |
| 41 | 0 | public class ServletUtils |
| 42 | { | |
| 43 | /** | |
| 44 | * Expands a string that points to a relative path or path list, | |
| 45 | * leaving it as an absolute path based on the servlet context. | |
| 46 | * It will return null if the text is empty or the config object | |
| 47 | * is null. | |
| 48 | * | |
| 49 | * @param config The ServletConfig. | |
| 50 | * @param text The String containing a path or path list. | |
| 51 | * @return A String with the expanded path or path list. | |
| 52 | */ | |
| 53 | public static String expandRelative(ServletConfig config, | |
| 54 | String text) | |
| 55 | { | |
| 56 | 0 | if (StringUtils.isEmpty(text)) |
| 57 | { | |
| 58 | 0 | return text; |
| 59 | } | |
| 60 | ||
| 61 | 0 | if (config == null) |
| 62 | { | |
| 63 | 0 | return null; |
| 64 | } | |
| 65 | ||
| 66 | final String expandedText; | |
| 67 | ||
| 68 | // attempt to make it relative | |
| 69 | 0 | if (!text.startsWith("/") && !text.startsWith("./") |
| 70 | 0 | && !text.startsWith("\\") && !text.startsWith(".\\")) |
| 71 | { | |
| 72 | 0 | StringBuilder sb = new StringBuilder(); |
| 73 | 0 | sb.append("./"); |
| 74 | 0 | sb.append(text); |
| 75 | 0 | expandedText = sb.toString(); |
| 76 | 0 | } |
| 77 | else | |
| 78 | { | |
| 79 | 0 | expandedText = text; |
| 80 | } | |
| 81 | ||
| 82 | 0 | ServletContext context = config.getServletContext(); |
| 83 | 0 | String base = StringUtils.defaultIfEmpty(context.getRealPath("/"), |
| 84 | 0 | Turbine.getApplicationRoot()); |
| 85 | ||
| 86 | 0 | if (StringUtils.isEmpty(base)) |
| 87 | { | |
| 88 | 0 | return expandedText; |
| 89 | } | |
| 90 | ||
| 91 | 0 | StringTokenizer tokenizer = new StringTokenizer(expandedText, File.pathSeparator); |
| 92 | 0 | StringBuilder buffer = new StringBuilder(); |
| 93 | 0 | while (tokenizer.hasMoreTokens()) |
| 94 | { | |
| 95 | 0 | buffer.append(base).append(tokenizer.nextToken()); |
| 96 | 0 | if (tokenizer.hasMoreTokens()) |
| 97 | { | |
| 98 | 0 | buffer.append(File.pathSeparator); |
| 99 | } | |
| 100 | } | |
| 101 | 0 | return buffer.toString(); |
| 102 | } | |
| 103 | } |