1 /*
2 * Copyright (c) 2002-2014, 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.avatar.service;
35
36 import fr.paris.lutece.portal.service.template.AppTemplateService;
37 import fr.paris.lutece.portal.service.util.AppLogService;
38 import fr.paris.lutece.util.html.HtmlTemplate;
39
40 import java.security.MessageDigest;
41 import java.security.NoSuchAlgorithmException;
42
43 import java.util.HashMap;
44 import java.util.Locale;
45 import java.util.Map;
46
47
48 /**
49 *
50 * Abstract Avatar provider
51 */
52 public abstract class AbstractAvatarProvider implements AvatarProvider
53 {
54 private static final String TEMPLATE_GRAVATAR = "/admin/plugins/avatar/avatar.html";
55 private static final String MARK_AVATAR_URL = "avatar_url";
56
57 /**
58 * {@inheritDoc }
59 */
60 @Override
61 public String getAvatar( String strId )
62 {
63 String strAvatar;
64 Map<String, Object> model = new HashMap<String, Object>( );
65 model.put( MARK_AVATAR_URL, getAvatarUrl( strId ) );
66
67 HtmlTemplate t = AppTemplateService.getTemplate( TEMPLATE_GRAVATAR, Locale.getDefault( ), model );
68 strAvatar = t.getHtml( );
69
70 return strAvatar;
71 }
72
73 /**
74 * Gat a MD5 hash from an email
75 *
76 * @param strAvatarEmail The email
77 * @return The hash
78 */
79 protected String getHashFromEmail( String strAvatarEmail )
80 {
81 String strHash = "";
82 String strEmail = strAvatarEmail.toLowerCase( );
83 MessageDigest md;
84
85 try
86 {
87 md = MessageDigest.getInstance( "MD5" );
88
89 byte[] hash = md.digest( strEmail.getBytes( ) );
90 StringBuilder sb = new StringBuilder( );
91
92 for ( int i = 0; i < hash.length; i++ )
93 {
94 sb.append( Integer.toString( ( hash[i] & 0xff ) + 0x100, 16 ).substring( 1 ) );
95 }
96
97 strHash = sb.toString( );
98 }
99 catch ( NoSuchAlgorithmException ex )
100 {
101 AppLogService.error( "Avatar service : Error hashing the email : " + ex.getMessage( ), ex );
102 }
103
104 return strHash;
105 }
106 }