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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
<?php
if (!defined('ABSPATH')) exit;
if (!class_exists('BVWPLP')) :
class BVWPLP {
public $db;
public $settings;
private $ip;
private $time;
private $category;
private $username;
private $message;
public $config;
public $logger;
public $ipstore;
public static $requests_table = 'lp_requests';
public static $unblock_ip_transient = 'bvlp_unblock_ip';
#status
const LOGINFAILURE = 1;
const LOGINSUCCESS = 2;
const LOGINBLOCKED = 3;
#categories
const CAPTCHABLOCK = 1;
const TEMPBLOCK = 2;
const ALLBLOCKED = 3;
const UNBLOCKED = 4;
const BLACKLISTED = 5;
const BYPASSED = 6;
const ALLOWED = 7;
public function __construct($db, $settings, $ip, $ipstore, $confHash) {
$this->db = $db;
$this->settings = $settings;
$this->ip = $ip;
$this->config = new BVWPLPConfig($confHash);
$this->ipstore = $ipstore;
$this->logger = new BVLogger($db, BVWPLPConfig::$requests_table);
$this->time = strtotime(date("Y-m-d H:i:s"));
}
public function init() {
add_filter('authenticate', array($this, 'loginInit'), 30, 3);
add_action('wp_login', array($this, 'loginSuccess'));
add_action('wp_login_failed', array($this, 'loginFailed'));
}
public function setMessage($message) {
$this->message = $message;
}
public function setUserName($username) {
$this->username = $username;
}
public function setCategory($category) {
$this->category = $category;
}
public function getCaptchaLink() {
$account = MCAccount::apiPublicAccount($this->settings);
$url = $account->authenticatedUrl('/captcha/solve');
$url .= "&adminurl=".base64_encode(get_admin_url());
return $url;
}
public function getUserName() {
return $this->username ? $this->username : '';
}
public function getMessage() {
return $this->message ? $this->message : '';
}
public function getCategory() {
return $this->category ? $this->category : BVWPLP::ALLOWED;
}
public function getCaptchaLimit() {
return $this->config->captchaLimit;
}
public function getTempBlockLimit() {
return $this->config->tempBlockLimit;
}
public function getBlockAllLimit() {
return $this->config->blockAllLimit;
}
public function getAllowLoginsTransient() {
return $this->settings->getTransient('bvlp_allow_logins');
}
public function getBlockLoginsTransient() {
return $this->settings->getTransient('bvlp_block_logins');
}
public function terminateTemplate() {
$info = new MCInfo($this->settings);
$brandname = $info->getBrandName().' Firewall';
$templates = array (
1 => "<p>Too many failed attempts, You are barred from logging into this site.</p><a href=".$this->getCaptchaLink()."
class='btn btn-default'>Click here</a> to unblock yourself.",
2 => "You cannot login to this site for 30 minutes because of too many failed login attempts.",
3 => "<p>Logins to this site are currently blocked.</p><a href=".$this->getCaptchaLink()."
class='btn btn-default'>Click here</a> to unblock yourself.",
5 => "Your IP is blacklisted."
);
return "
<div style='height: 98vh;'>
<div style='text-align: center; padding: 10% 0; font-family: Arial, Helvetica, sans-serif;'>
<div><p><img src=".plugins_url('/../../../img/icon.png', __FILE__)."><h2>Login Protection</h2><h3>powered by</h3><h2>"
.$brandname."</h2></p><div>
<p>" . $templates[$this->getCategory()]. "</p>
<p>Reference ID: " . MCInfo::getRequestID() . "</p>
</div>
</div>";
}
public function isProtecting() {
return ($this->config->mode === BVWPLPConfig::PROTECT);
}
public function isActive() {
return ($this->config->mode !== BVWPLPConfig::DISABLED);
}
public function isBlacklistedIP() {
return $this->ipstore->isLPIPBlacklisted($this->ip);
}
public function isWhitelistedIP() {
return $this->ipstore->isLPIPWhitelisted($this->ip);
}
public function isUnBlockedIP() {
$transient_name = BVWPLP::$unblock_ip_transient.$this->ip;
$attempts = $this->settings->getTransient($transient_name);
if ($attempts && $attempts > 0) {
$this->settings->setTransient($transient_name, $attempts - 1, 600 * $attempts);
return true;
}
return false;
}
public function isLoginBlocked() {
if ($this->getAllowLoginsTransient() ||
($this->getLoginCount(BVWPLP::LOGINFAILURE) < $this->getBlockAllLimit())) {
return false;
}
return true;
}
public function log($status) {
$data = array (
"ip" => $this->ip,
"status" => $status,
"time" => $this->time,
"category" => $this->getCategory(),
"username" => $this->getUserName(),
"request_id" => MCInfo::getRequestID(),
"message" => $this->getMessage());
$this->logger->log($data);
}
public function terminateLogin() {
$this->setMessage('Login Blocked');
$this->log(BVWPLP::LOGINBLOCKED);
if ($this->isProtecting()) {
header("Cache-Control: no-cache, no-store, must-revalidate");
header("Pragma: no-cache");
header("Expires: 0");
header('HTTP/1.0 403 Forbidden');
die($this->terminateTemplate());
exit;
}
}
public function loginInit($user, $username = '', $password = '') {
if ($this->isUnBlockedIP()) {
$this->setCategory(BVWPLP::UNBLOCKED);
} else {
$failed_attempts = $this->getLoginCount(BVWPLP::LOGINFAILURE, $this->ip);
if ($this->isWhitelistedIP()) {
$this->setCategory(BVWPLP::BYPASSED);
} else if ($this->isBlacklistedIP()) {
$this->setCategory(BVWPLP::BLACKLISTED);
$this->terminateLogin();
} else if ($this->isKnownLogin()) {
$this->setCategory(BVWPLP::BYPASSED);
} else if ($this->isLoginBlocked()) {
$this->setCategory(BVWPLP::ALLBLOCKED);
$this->terminateLogin();
} else if ($failed_attempts >= $this->getTempBlockLimit()) {
$this->setCategory(BVWPLP::TEMPBLOCK);
$this->terminateLogin();
} else if ($failed_attempts >= $this->getCaptchaLimit()) {
$this->setCategory(BVWPLP::CAPTCHABLOCK);
$this->terminateLogin();
}
}
if (!empty($user) && !empty($password) && is_wp_error($user)) {
$this->setMessage($user->get_error_code());
}
return $user;
}
public function loginFailed($username) {
$this->setUserName($username);
$this->log(BVWPLP::LOGINFAILURE);
}
public function loginSuccess($username) {
$this->setUserName($username);
$this->setMessage('Login Success');
$this->log(BVWPLP::LOGINSUCCESS);
}
public function isKnownLogin() {
return $this->getLoginCount(BVWPLP::LOGINSUCCESS, $this->ip, 3600) > 0;
}
public function getLoginCount($status, $ip = null, $gap = 1800) {
$db = $this->db;
$table = $db->getBVTable(BVWPLP::$requests_table);
$query = $db->prepare("SELECT COUNT(*) as count from `$table` WHERE status=%d && time > %d", array($status, ($this->time - $gap)));
if ($ip) {
$query .= $db->prepare(" && ip=%s", $ip);
}
$rows = $db->getResult($query);
if (!$rows)
return 0;
return intval($rows[0]['count']);
}
}
endif;
|