1 /*
2 * Copyright (c) 2002-2017, Mairie de Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34 package fr.paris.lutece.plugins.webappcontainer.util;
35
36 import java.io.IOException;
37 import java.net.MalformedURLException;
38 import java.net.URL;
39
40 import sun.misc.BASE64Decoder;
41 import sun.misc.BASE64Encoder;
42 import fr.paris.lutece.portal.service.util.AppLogService;
43
44 /**
45 * This class provide tools for Urls
46 * @author ELY
47 *
48 */
49 public final class UrlUtils
50 {
51 /**
52 * Private constructor - this class does not need to be instantiated
53 */
54 private UrlUtils()
55 {
56 }
57
58 /**
59 * Check if the host of the two url are the same
60 * @param strFirstUrl The first url
61 * @param strSecondUrl The second url
62 * @return true if the host are equals, false else or if an url is malformed (MalformedURLException).
63 */
64 public static boolean hostsEquals( String strFirstUrl, String strSecondUrl )
65 {
66 URL urlFirstUrl = null;
67 URL urlSecondUrl = null;
68
69 try
70 {
71 urlFirstUrl = new URL( strFirstUrl );
72 urlSecondUrl = new URL( strSecondUrl );
73 }
74 catch ( MalformedURLException e )
75 {
76 return false;
77 }
78
79 return urlFirstUrl.getHost().equalsIgnoreCase( urlSecondUrl.getHost() );
80 }
81
82 /**
83 * Convert the specified url
84 * @param strUrl The url to convert
85 * @param strBaseUrlSite The webapp url
86 * @return The converted url
87 */
88 public static String convertRelativeToAbsoluteUrl( String strUrl, String strBaseUrlSite )
89 {
90 String strConvertedUrl = null;
91 URL baseUrlSite = null;
92 AppLogService.debug( "[ConvertUrl] Webapp url = " + strBaseUrlSite );
93
94 try
95 {
96 baseUrlSite = new URL( strBaseUrlSite );
97
98 URL convertedUrl = new URL( baseUrlSite, strUrl );
99
100 strConvertedUrl = convertedUrl.toExternalForm();
101 }
102 catch ( MalformedURLException e )
103 {
104 AppLogService.error( "[convertUrl] Malformed Url Exception with url = " + strUrl, e );
105
106 return null;
107 }
108
109 AppLogService.debug( "[ConvertUrl] " + strUrl + " -> " + strConvertedUrl );
110
111 return strConvertedUrl;
112 }
113
114 /**
115 * Encode (Base64) the specified Url
116 * @param strUrl The url to encode
117 * @return The encoded url
118 */
119 public static String encodeUrl( String strUrl )
120 {
121 BASE64Encoder encoder = new BASE64Encoder();
122
123 return encoder.encode( strUrl.getBytes() );
124 }
125
126 /**
127 * Decode (Base64) the specified url
128 *
129 * @param strUrl the url to decode
130 * @return The decoded url or null if error (IOException)
131 */
132 public static String decodeUrl( String strUrl )
133 {
134 BASE64Decoder decoder = new BASE64Decoder();
135 String strReturnUrl = null;
136
137 try
138 {
139 if ( strUrl != null )
140 {
141 strReturnUrl = new String( decoder.decodeBuffer( strUrl ) );
142 }
143 }
144 catch ( IOException e )
145 {
146 return null;
147 }
148
149 return strReturnUrl;
150 }
151 }