1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to prevent use of nicknames or URLs on a blacklist
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* Plugin to prevent use of nicknames or URLs on a blacklist
*
* @category Plugin
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class BlacklistPlugin extends Plugin
{
const VERSION = STATUSNET_VERSION;
public $nicknames = array();
public $urls = array();
/**
* Hook registration to prevent blacklisted homepages or nicknames
*
* Throws an exception if there's a blacklisted homepage or nickname.
*
* @param Action $action Action being called (usually register)
*
* @return boolean hook value
*/
function onStartRegistrationTry($action)
{
$homepage = strtolower($action->trimmed('homepage'));
if (!empty($homepage)) {
if (!$this->_checkUrl($homepage)) {
$msg = sprintf(_m("You may not register with homepage '%s'"),
$homepage);
throw new ClientException($msg);
}
}
$nickname = strtolower($action->trimmed('nickname'));
if (!empty($nickname)) {
if (!$this->_checkNickname($nickname)) {
$msg = sprintf(_m("You may not register with nickname '%s'"),
$nickname);
throw new ClientException($msg);
}
}
return true;
}
/**
* Hook profile update to prevent blacklisted homepages or nicknames
*
* Throws an exception if there's a blacklisted homepage or nickname.
*
* @param Action $action Action being called (usually register)
*
* @return boolean hook value
*/
function onStartProfileSaveForm($action)
{
$homepage = strtolower($action->trimmed('homepage'));
if (!empty($homepage)) {
if (!$this->_checkUrl($homepage)) {
$msg = sprintf(_m("You may not use homepage '%s'"),
$homepage);
throw new ClientException($msg);
}
}
$nickname = strtolower($action->trimmed('nickname'));
if (!empty($nickname)) {
if (!$this->_checkNickname($nickname)) {
$msg = sprintf(_m("You may not use nickname '%s'"),
$nickname);
throw new ClientException($msg);
}
}
return true;
}
/**
* Hook notice save to prevent blacklisted urls
*
* Throws an exception if there's a blacklisted url in the content.
*
* @param Notice &$notice Notice being saved
*
* @return boolean hook value
*/
function onStartNoticeSave(&$notice)
{
common_replace_urls_callback($notice->content,
array($this, 'checkNoticeUrl'));
return true;
}
/**
* Helper callback for notice save
*
* Throws an exception if there's a blacklisted url in the content.
*
* @param string $url URL in the notice content
*
* @return boolean hook value
*/
function checkNoticeUrl($url)
{
// It comes in special'd, so we unspecial it
// before comparing against patterns
$url = htmlspecialchars_decode($url);
if (!$this->_checkUrl($url)) {
$msg = sprintf(_m("You may not use url '%s' in notices"),
$url);
throw new ClientException($msg);
}
return $url;
}
/**
* Helper for checking URLs
*
* Checks an URL against our patterns for a match.
*
* @param string $url URL to check
*
* @return boolean true means it's OK, false means it's bad
*/
private function _checkUrl($url)
{
foreach ($this->urls as $pattern) {
if (preg_match("/$pattern/", $url)) {
return false;
}
}
return true;
}
/**
* Helper for checking nicknames
*
* Checks a nickname against our patterns for a match.
*
* @param string $nickname nickname to check
*
* @return boolean true means it's OK, false means it's bad
*/
private function _checkNickname($nickname)
{
foreach ($this->nicknames as $pattern) {
if (preg_match("/$pattern/", $nickname)) {
return false;
}
}
return true;
}
function onPluginVersion(&$versions)
{
$versions[] = array('name' => 'Blacklist',
'version' => self::VERSION,
'author' => 'Evan Prodromou',
'homepage' => 'http://status.net/wiki/Plugin:Blacklist',
'description' =>
_m('Keep a blacklist of forbidden nickname and URL patterns.'));
return true;
}
}
|
