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
|
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Plugin to check submitted notices with blogspam.net
*
* 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 Plugin
* @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('LACONICA')) {
exit(1);
}
define('BLOGSPAMNETPLUGIN_VERSION', '0.1');
/**
* Plugin to check submitted notices with blogspam.net
*
* When new notices are saved, we check their text with blogspam.net (or
* a compatible service).
*
* Blogspam.net is supposed to catch blog comment spam, and I found that
* some of its tests (min/max size, bayesian match) gave a lot of false positives.
* So, I've turned those tests off by default. This may not get as many
* hits, but it's better than nothing.
*
* @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/
*
* @see Event
*/
class BlogspamNetPlugin extends Plugin
{
var $baseUrl = 'http://test.blogspam.net:8888/';
function __construct($url=null)
{
parent::__construct();
if ($url) {
$this->baseUrl = $url;
}
}
function onStartNoticeSave($notice)
{
$args = $this->testArgs($notice);
common_debug("Blogspamnet args = " . print_r($args, TRUE));
$request = xmlrpc_encode_request('testComment', array($args));
$context = stream_context_create(array('http' => array('method' => "POST",
'header' =>
"Content-Type: text/xml\r\n".
"User-Agent: " . $this->userAgent(),
'content' => $request)));
$file = file_get_contents($this->baseUrl, false, $context);
$response = xmlrpc_decode($file);
if (xmlrpc_is_fault($response)) {
throw new ServerException("$response[faultString] ($response[faultCode])", 500);
} else {
common_debug("Blogspamnet results = " . $response);
if (preg_match('/^ERROR(:(.*))?$/', $response, $match)) {
throw new ServerException(sprintf(_("Error from %s: %s"), $this->baseUrl, $match[2]), 500);
} else if (preg_match('/^SPAM(:(.*))?$/', $response, $match)) {
throw new ClientException(sprintf(_("Spam checker results: %s"), $match[2]), 400);
} else if (preg_match('/^OK$/', $response)) {
// don't do anything
} else {
throw new ServerException(sprintf(_("Unexpected response from %s: %s"), $this->baseUrl, $response), 500);
}
}
return true;
}
function testArgs($notice)
{
$args = array();
$args['comment'] = $notice->content;
$args['ip'] = $this->getClientIP();
if (isset($_SERVER) && array_key_exists('HTTP_USER_AGENT', $_SERVER)) {
$args['agent'] = $_SERVER['HTTP_USER_AGENT'];
}
$profile = $notice->getProfile();
if ($profile && $profile->homepage) {
$args['link'] = $profile->homepage;
}
if ($profile && $profile->fullname) {
$args['name'] = $profile->fullname;
} else {
$args['name'] = $profile->nickname;
}
$args['site'] = common_root_url();
$args['version'] = $this->userAgent();
$args['options'] = "max-size=140,min-size=0,min-words=0,exclude=bayasian";
return $args;
}
function getClientIP()
{
if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
// Note: order matters here; use proxy-forwarded stuff first
foreach (array('HTTP_X_FORWARDED_FOR', 'CLIENT-IP', 'REMOTE_ADDR') as $k) {
if (isset($_SERVER[$k])) {
return $_SERVER[$k];
}
}
}
return '127.0.0.1';
}
function userAgent()
{
return 'BlogspamNetPlugin/'.BLOGSPAMNETPLUGIN_VERSION . ' StatusNet/' . LACONICA_VERSION;
}
}
|
