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1   /*
2    * This file is part of dependency-check-core.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   * Copyright (c) 2014 Jeremy Long. All Rights Reserved.
17   */
18  package org.owasp.dependencycheck.reporting;
19  
20  import java.io.UnsupportedEncodingException;
21  import java.net.URLEncoder;
22  import org.apache.commons.lang3.StringEscapeUtils;
23  import org.slf4j.Logger;
24  import org.slf4j.LoggerFactory;
25  
26  /**
27   * An extremely simple wrapper around various escape utils to perform URL and HTML encoding within the reports. This class was
28   * created to simplify the velocity configuration and avoid using the "built-in" escape tool.
29   *
30   * @author Jeremy Long
31   */
32  public class EscapeTool {
33  
34      /**
35       * The logger.
36       */
37      private static final Logger LOGGER = LoggerFactory.getLogger(EscapeTool.class);
38  
39      /**
40       * URL Encodes the provided text.
41       *
42       * @param text the text to encode
43       * @return the URL encoded text
44       */
45      public String url(String text) {
46          if (text == null || text.isEmpty()) {
47              return text;
48          }
49          try {
50              return URLEncoder.encode(text, "UTF-8");
51          } catch (UnsupportedEncodingException ex) {
52              LOGGER.warn("UTF-8 is not supported?");
53              LOGGER.info("", ex);
54          }
55          return "";
56      }
57  
58      /**
59       * HTML Encodes the provided text.
60       *
61       * @param text the text to encode
62       * @return the HTML encoded text
63       */
64      public String html(String text) {
65          if (text == null || text.isEmpty()) {
66              return text;
67          }
68          return StringEscapeUtils.escapeHtml4(text);
69      }
70  
71      /**
72       * XML Encodes the provided text.
73       *
74       * @param text the text to encode
75       * @return the XML encoded text
76       */
77      public String xml(String text) {
78          if (text == null || text.isEmpty()) {
79              return text;
80          }
81          return StringEscapeUtils.escapeXml11(text);
82      }
83  }