wfConfig.php — Wordfence Security – Firewall, Malware Scan, and Login Security 3.2.6

wordfence / lib / wfConfig.php

wordfence / lib Last commit date

wfConfig.php

581 lines

1	<?php
2	class wfConfig {
3	private static $table = false;
4	private static $cache = array();
5	private static $DB = false;
6	private static $tmpFileHeader = "<?php\n/* Wordfence temporary file security header */\necho \"Nothing to see here!\\n\"; exit(0);\n?>";
7	private static $tmpDirCache = false;
8	public static $securityLevels = array(
9	array( //level 0
10	"checkboxes" => array(
11	"alertOn_critical" => false,
12	"alertOn_warnings" => false,
13	"alertOn_throttle" => false,
14	"alertOn_block" => false,
15	"alertOn_loginLockout" => false,
16	"alertOn_lostPasswdForm" => false,
17	"alertOn_adminLogin" => false,
18	"alertOn_nonAdminLogin" => false,
19	"liveTrafficEnabled" => true,
20	"liveTraf_ignorePublishers" => true,
21	"scheduledScansEnabled" => false,
22	"scansEnabled_public" => false,
23	"scansEnabled_core" => false,
24	"scansEnabled_themes" => false,
25	"scansEnabled_plugins" => false,
26	"scansEnabled_malware" => false,
27	"scansEnabled_fileContents" => false,
28	"scansEnabled_posts" => false,
29	"scansEnabled_comments" => false,
30	"scansEnabled_passwds" => false,
31	"scansEnabled_diskSpace" => false,
32	"scansEnabled_dns" => false,
33	"scansEnabled_oldVersions" => false,
34	"firewallEnabled" => false,
35	"blockFakeBots" => false,
36	"autoBlockScanners" => false,
37	"loginSecurityEnabled" => false,
38	"loginSec_lockInvalidUsers" => false,
39	"loginSec_maskLoginErrors" => false,
40	"other_hideWPVersion" => false,
41	"other_noAnonMemberComments" => false,
42	"other_scanComments" => false,
43	"other_pwStrengthOnUpdate" => false,
44	"other_WFNet" => true,
45	"other_scanOutside" => false,
46	"deleteTablesOnDeact" => false,
47	"debugOn" => false
48	),
49	"otherParams" => array(
50	'securityLevel' => '0',
51	"alertEmails" => "", "liveTraf_ignoreUsers" => "", "liveTraf_ignoreIPs" => "", "liveTraf_ignoreUA" => "", "apiKey" => "", "maxMem" => '256', 'whitelisted' => '',
52	"neverBlockBG" => "neverBlockVerified",
53	"loginSec_countFailMins" => "5",
54	"loginSec_lockoutMins" => "5",
55	'loginSec_maxFailures' => "500",
56	'loginSec_maxForgotPasswd' => "500",
57	'maxGlobalRequests' => "DISABLED",
58	'maxGlobalRequests_action' => "throttle",
59	'maxRequestsCrawlers' => "DISABLED",
60	'maxRequestsCrawlers_action' => "throttle",
61	'maxRequestsHumans' => "DISABLED",
62	'maxRequestsHumans_action' => "throttle",
63	'max404Crawlers' => "DISABLED",
64	'max404Crawlers_action' => "throttle",
65	'max404Humans' => "DISABLED",
66	'max404Humans_action' => "throttle",
67	'maxScanHits' => "DISABLED",
68	'maxScanHits_action' => "throttle",
69	'blockedTime' => "300"
70	)
71	),
72	array( //level 1
73	"checkboxes" => array(
74	"alertOn_critical" => true,
75	"alertOn_warnings" => false,
76	"alertOn_throttle" => false,
77	"alertOn_block" => false,
78	"alertOn_loginLockout" => false,
79	"alertOn_lostPasswdForm" => false,
80	"alertOn_adminLogin" => false,
81	"alertOn_nonAdminLogin" => false,
82	"liveTrafficEnabled" => true,
83	"liveTraf_ignorePublishers" => true,
84	"scheduledScansEnabled" => true,
85	"scansEnabled_public" => false,
86	"scansEnabled_core" => true,
87	"scansEnabled_themes" => false,
88	"scansEnabled_plugins" => false,
89	"scansEnabled_malware" => true,
90	"scansEnabled_fileContents" => true,
91	"scansEnabled_posts" => true,
92	"scansEnabled_comments" => true,
93	"scansEnabled_passwds" => true,
94	"scansEnabled_diskSpace" => true,
95	"scansEnabled_dns" => true,
96	"scansEnabled_oldVersions" => true,
97	"firewallEnabled" => false,
98	"blockFakeBots" => false,
99	"autoBlockScanners" => true,
100	"loginSecurityEnabled" => true,
101	"loginSec_lockInvalidUsers" => false,
102	"loginSec_maskLoginErrors" => true,
103	"other_hideWPVersion" => true,
104	"other_noAnonMemberComments" => true,
105	"other_scanComments" => true,
106	"other_pwStrengthOnUpdate" => true,
107	"other_WFNet" => true,
108	"other_scanOutside" => false,
109	"deleteTablesOnDeact" => false,
110	"debugOn" => false
111	),
112	"otherParams" => array(
113	'securityLevel' => '1',
114	"alertEmails" => "", "liveTraf_ignoreUsers" => "", "liveTraf_ignoreIPs" => "", "liveTraf_ignoreUA" => "", "apiKey" => "", "maxMem" => '256', 'whitelisted' => '',
115	"neverBlockBG" => "neverBlockVerified",
116	"loginSec_countFailMins" => "5",
117	"loginSec_lockoutMins" => "5",
118	'loginSec_maxFailures' => "50",
119	'loginSec_maxForgotPasswd' => "50",
120	'maxGlobalRequests' => "DISABLED",
121	'maxGlobalRequests_action' => "throttle",
122	'maxRequestsCrawlers' => "DISABLED",
123	'maxRequestsCrawlers_action' => "throttle",
124	'maxRequestsHumans' => "DISABLED",
125	'maxRequestsHumans_action' => "throttle",
126	'max404Crawlers' => "DISABLED",
127	'max404Crawlers_action' => "throttle",
128	'max404Humans' => "DISABLED",
129	'max404Humans_action' => "throttle",
130	'maxScanHits' => "DISABLED",
131	'maxScanHits_action' => "throttle",
132	'blockedTime' => "300"
133	)
134	),
135	array( //level 2
136	"checkboxes" => array(
137	"alertOn_critical" => true,
138	"alertOn_warnings" => true,
139	"alertOn_throttle" => false,
140	"alertOn_block" => false,
141	"alertOn_loginLockout" => false,
142	"alertOn_lostPasswdForm" => false,
143	"alertOn_adminLogin" => false,
144	"alertOn_nonAdminLogin" => false,
145	"liveTrafficEnabled" => true,
146	"liveTraf_ignorePublishers" => true,
147	"scheduledScansEnabled" => true,
148	"scansEnabled_public" => false,
149	"scansEnabled_core" => true,
150	"scansEnabled_themes" => false,
151	"scansEnabled_plugins" => false,
152	"scansEnabled_malware" => true,
153	"scansEnabled_fileContents" => true,
154	"scansEnabled_posts" => true,
155	"scansEnabled_comments" => true,
156	"scansEnabled_passwds" => true,
157	"scansEnabled_diskSpace" => true,
158	"scansEnabled_dns" => true,
159	"scansEnabled_oldVersions" => true,
160	"firewallEnabled" => false,
161	"blockFakeBots" => false,
162	"autoBlockScanners" => true,
163	"loginSecurityEnabled" => true,
164	"loginSec_lockInvalidUsers" => false,
165	"loginSec_maskLoginErrors" => true,
166	"other_hideWPVersion" => true,
167	"other_noAnonMemberComments" => true,
168	"other_scanComments" => true,
169	"other_pwStrengthOnUpdate" => true,
170	"other_WFNet" => true,
171	"other_scanOutside" => false,
172	"deleteTablesOnDeact" => false,
173	"debugOn" => false
174	),
175	"otherParams" => array(
176	'securityLevel' => '2',
177	"alertEmails" => "", "liveTraf_ignoreUsers" => "", "liveTraf_ignoreIPs" => "", "liveTraf_ignoreUA" => "", "apiKey" => "", "maxMem" => '256', 'whitelisted' => '',
178	"neverBlockBG" => "neverBlockVerified",
179	"loginSec_countFailMins" => "240",
180	"loginSec_lockoutMins" => "240",
181	'loginSec_maxFailures' => "20",
182	'loginSec_maxForgotPasswd' => "20",
183	'maxGlobalRequests' => "DISABLED",
184	'maxGlobalRequests_action' => "throttle",
185	'maxRequestsCrawlers' => "DISABLED",
186	'maxRequestsCrawlers_action' => "throttle",
187	'maxRequestsHumans' => "DISABLED",
188	'maxRequestsHumans_action' => "throttle",
189	'max404Crawlers' => "DISABLED",
190	'max404Crawlers_action' => "throttle",
191	'max404Humans' => "DISABLED",
192	'max404Humans_action' => "throttle",
193	'maxScanHits' => "DISABLED",
194	'maxScanHits_action' => "throttle",
195	'blockedTime' => "300"
196	)
197	),
198	array( //level 3
199	"checkboxes" => array(
200	"alertOn_critical" => true,
201	"alertOn_warnings" => true,
202	"alertOn_throttle" => false,
203	"alertOn_block" => false,
204	"alertOn_loginLockout" => false,
205	"alertOn_lostPasswdForm" => false,
206	"alertOn_adminLogin" => false,
207	"alertOn_nonAdminLogin" => false,
208	"liveTrafficEnabled" => true,
209	"liveTraf_ignorePublishers" => true,
210	"scheduledScansEnabled" => true,
211	"scansEnabled_public" => false,
212	"scansEnabled_core" => true,
213	"scansEnabled_themes" => false,
214	"scansEnabled_plugins" => false,
215	"scansEnabled_malware" => true,
216	"scansEnabled_fileContents" => true,
217	"scansEnabled_posts" => true,
218	"scansEnabled_comments" => true,
219	"scansEnabled_passwds" => true,
220	"scansEnabled_diskSpace" => true,
221	"scansEnabled_dns" => true,
222	"scansEnabled_oldVersions" => true,
223	"firewallEnabled" => true,
224	"blockFakeBots" => false,
225	"autoBlockScanners" => true,
226	"loginSecurityEnabled" => true,
227	"loginSec_lockInvalidUsers" => false,
228	"loginSec_maskLoginErrors" => true,
229	"other_hideWPVersion" => true,
230	"other_noAnonMemberComments" => true,
231	"other_scanComments" => true,
232	"other_pwStrengthOnUpdate" => true,
233	"other_WFNet" => true,
234	"other_scanOutside" => false,
235	"deleteTablesOnDeact" => false,
236	"debugOn" => false
237	),
238	"otherParams" => array(
239	'securityLevel' => '3',
240	"alertEmails" => "", "liveTraf_ignoreUsers" => "", "liveTraf_ignoreIPs" => "", "liveTraf_ignoreUA" => "", "apiKey" => "", "maxMem" => '256', 'whitelisted' => '',
241	"neverBlockBG" => "neverBlockVerified",
242	"loginSec_countFailMins" => "1440",
243	"loginSec_lockoutMins" => "1440",
244	'loginSec_maxFailures' => "10",
245	'loginSec_maxForgotPasswd' => "10",
246	'maxGlobalRequests' => "960",
247	'maxGlobalRequests_action' => "throttle",
248	'maxRequestsCrawlers' => "960",
249	'maxRequestsCrawlers_action' => "throttle",
250	'maxRequestsHumans' => "60",
251	'maxRequestsHumans_action' => "throttle",
252	'max404Crawlers' => "60",
253	'max404Crawlers_action' => "throttle",
254	'max404Humans' => "60",
255	'max404Humans_action' => "throttle",
256	'maxScanHits' => "30",
257	'maxScanHits_action' => "throttle",
258	'blockedTime' => "1800"
259	)
260	),
261	array( //level 4
262	"checkboxes" => array(
263	"alertOn_critical" => true,
264	"alertOn_warnings" => true,
265	"alertOn_throttle" => false,
266	"alertOn_block" => false,
267	"alertOn_loginLockout" => false,
268	"alertOn_lostPasswdForm" => false,
269	"alertOn_adminLogin" => false,
270	"alertOn_nonAdminLogin" => false,
271	"liveTrafficEnabled" => true,
272	"liveTraf_ignorePublishers" => true,
273	"scheduledScansEnabled" => true,
274	"scansEnabled_public" => false,
275	"scansEnabled_core" => true,
276	"scansEnabled_themes" => false,
277	"scansEnabled_plugins" => false,
278	"scansEnabled_malware" => true,
279	"scansEnabled_fileContents" => true,
280	"scansEnabled_posts" => true,
281	"scansEnabled_comments" => true,
282	"scansEnabled_passwds" => true,
283	"scansEnabled_diskSpace" => true,
284	"scansEnabled_dns" => true,
285	"scansEnabled_oldVersions" => true,
286	"firewallEnabled" => true,
287	"blockFakeBots" => true,
288	"autoBlockScanners" => true,
289	"loginSecurityEnabled" => true,
290	"loginSec_lockInvalidUsers" => true,
291	"loginSec_maskLoginErrors" => true,
292	"other_hideWPVersion" => true,
293	"other_noAnonMemberComments" => true,
294	"other_scanComments" => true,
295	"other_pwStrengthOnUpdate" => true,
296	"other_WFNet" => true,
297	"other_scanOutside" => false,
298	"deleteTablesOnDeact" => false,
299	"debugOn" => false
300	),
301	"otherParams" => array(
302	'securityLevel' => '4',
303	"alertEmails" => "", "liveTraf_ignoreUsers" => "", "liveTraf_ignoreIPs" => "", "liveTraf_ignoreUA" => "", "apiKey" => "", "maxMem" => '256', 'whitelisted' => '',
304	"neverBlockBG" => "neverBlockVerified",
305	"loginSec_countFailMins" => "1440",
306	"loginSec_lockoutMins" => "1440",
307	'loginSec_maxFailures' => "5",
308	'loginSec_maxForgotPasswd' => "5",
309	'maxGlobalRequests' => "960",
310	'maxGlobalRequests_action' => "throttle",
311	'maxRequestsCrawlers' => "960",
312	'maxRequestsCrawlers_action' => "throttle",
313	'maxRequestsHumans' => "30",
314	'maxRequestsHumans_action' => "block",
315	'max404Crawlers' => "30",
316	'max404Crawlers_action' => "block",
317	'max404Humans' => "60",
318	'max404Humans_action' => "block",
319	'maxScanHits' => "10",
320	'maxScanHits_action' => "block",
321	'blockedTime' => "7200"
322	)
323	)
324	);
325	public static function setDefaults(){
326	foreach(self::$securityLevels[2]['checkboxes'] as $key => $val){
327	if(self::get($key) === false){
328	self::set($key, $val ? '1' : '0');
329	}
330	}
331	foreach(self::$securityLevels[2]['otherParams'] as $key => $val){
332	if(self::get($key) === false){
333	self::set($key, $val);
334	}
335	}
336	self::set('encKey', substr(wfUtils::bigRandomHex(),0 ,16) );
337	if(self::get('maxMem', false) === false ){
338	self::set('maxMem', '256');
339	}
340	if(self::get('other_scanOutside', false) === false){
341	self::set('other_scanOutside', 0);
342	}
343	}
344	public static function parseOptions(){
345	$ret = array();
346	foreach(self::$securityLevels[2]['checkboxes'] as $key => $val){ //value is not used. We just need the keys for validation
347	$ret[$key] = isset($_POST[$key]) ? '1' : '0';
348	}
349	foreach(self::$securityLevels[2]['otherParams'] as $key => $val){
350	if(isset($_POST[$key])){
351	$ret[$key] = $_POST[$key];
352	} else {
353	error_log("Missing options param \"$key\" when parsing parameters.");
354	}
355	}
356	/* for debugging only:
357	foreach($_POST as $key => $val){
358	if($key != 'action' && $key != 'nonce' && (! array_key_exists($key, self::$checkboxes)) && (! array_key_exists($key, self::$otherParams)) ){
359	error_log("Unrecognized option: $key");
360	}
361	}
362	*/
363	return $ret;
364	}
365	public static function setArray($arr){
366	foreach($arr as $key => $val){
367	self::set($key, $val);
368	}
369	}
370	public static function clearCache(){
371	self::$cache = array();
372	}
373	public static function getHTML($key){
374	return htmlspecialchars(self::get($key));
375	}
376	public static function set($key, $val){
377	if(is_array($val)){
378	$msg = "wfConfig::set() got an array as second param with key: $key and value: " . var_export($val, true);
379	wordfence::status(1, 'error', $msg);
380	return;
381	}
382
383	self::getDB()->query("insert into " . self::table() . " (name, val) values ('%s', '%s') ON DUPLICATE KEY UPDATE val='%s'", $key, $val, $val);
384	self::$cache[$key] = $val;
385	}
386	public static function get($key, $default = false){
387	if(! isset(self::$cache[$key])){
388	$val = self::getDB()->querySingle("select val from " . self::table() . " where name='%s'", $key);
389	if(isset($val)){
390	self::$cache[$key] = $val;
391	} else {
392	self::$cache[$key] = $default;
393	}
394	}
395	return self::$cache[$key];
396	}
397	public static function get_ser($key, $default, $canUseDisk = false){ //When using disk, reading a value deletes it.
398	//If we can use disk, check if there are any values stored on disk first and read them instead of the DB if there are values
399	if($canUseDisk){
400	$filename = 'wordfence_tmpfile_' . $key . '.php';
401	$dir = self::getTempDir();
402	if($dir){
403	$obj = false;
404	$foundFiles = false;
405	$fullFile = $dir . $filename;
406	if(file_exists($fullFile)){
407	wordfence::status(4, 'info', "Loading serialized data from file $fullFile");
408	$obj = unserialize(substr(file_get_contents($fullFile), strlen(self::$tmpFileHeader))); //Strip off security header and unserialize
409	if(! $obj){
410	wordfence::status(2, 'error', "Could not unserialize file $fullFile");
411	}
412	self::deleteOldTempFile($fullFile);
413	}
414	if($obj){ //If we managed to deserialize something, clean ALL tmp dirs of this file and return obj
415	return $obj;
416	}
417	}
418	}
419	self::getDB()->reconnect();
420	//We do our own query handling here because we are dealing with some very big strings
421	$dbh = self::getDB()->getDBH();
422	$res = mysql_query("select val from " . self::table() . " where name='" . mysql_real_escape_string($key) . "'", $dbh);
423	$err = mysql_error();
424	if($err){
425	$trace=debug_backtrace();
426	$caller=array_shift($trace);
427	wordfence::status(2, 'error', "Wordfence DB error in " . $caller['file'] . " line " . $caller['line'] . ": $err");
428	return false;
429	}
430
431	if(mysql_num_rows($res) > 0){
432	$row = mysql_fetch_row($res);
433	return unserialize($row[0]);
434	}
435	return $default;
436	}
437	public static function set_ser($key, $val, $canUseDisk = false){
438	//We serialize some very big values so this is ultra-memory efficient. We don't make any copies of $val and don't use ON DUPLICATE KEY UPDATE
439	// because we would have to concatenate $val twice into the query which could also exceed max packet for the mysql server
440	self::getDB()->reconnect();
441	$dbh = self::getDB()->getDBH();
442	$serialized = serialize($val);
443	$tempFilename = 'wordfence_tmpfile_' . $key . '.php';
444	if((strlen($serialized) * 1.1) > self::getDB()->getMaxAllowedPacketBytes()){ //If it's greater than max_allowed_packet + 10% for escaping and SQL
445	if($canUseDisk){
446	$dir = self::getTempDir();
447	if($dir){
448	$fh = false;
449	$fullFile = $dir . $tempFilename;
450	self::deleteOldTempFile($fullFile);
451	$fh = fopen($fullFile, 'w');
452	if($fh){
453	wordfence::status(4, 'info', "Serialized data for $key is " . strlen($serialized) . " bytes and is greater than max_allowed packet so writing it to disk file: " . $fullFile);
454	} else {
455	wordfence::status(1, 'error', "Your database doesn't allow big packets so we have to use files to store temporary data and Wordfence can't find a place to write them. Either ask your admin to increase max_allowed_packet on your MySQL database, or make one of the following directories writable by your web server: " . implode(', ', $dirs));
456	return false;
457	}
458	fwrite($fh, self::$tmpFileHeader);
459	fwrite($fh, $serialized);
460	fclose($fh);
461	return true;
462	} else {
463	wordfence::status(1, 'error', "Wordfence tried to save a variable with name '$key' and your database max_allowed_packet is set to be too small. We then tried to save it to disk, but you don't have a temporary directory that is writable. You can fix this by making the /wp-content/plugins/wordfence/tmp/ directory writable by your web server. Or by increasing your max_allowed_packet configuration variable in your mysql database.");
464	return false;
465	}
466
467	} else {
468	wordfence::status(1, 'error', "Wordfence tried to save a variable with name '$key' and your database max_allowed_packet is set to be too small. This particular variable can't be saved to disk. Please ask your administrator to increase max_allowed_packet and also report this in the Wordfence forums because it may be a bug. Thanks.");
469	return false;
470	}
471	} else {
472	//Delete temp files on disk or else the DB will be written to but get_ser will see files on disk and read them instead
473	$tempDir = self::getTempDir();
474	if($tempDir){
475	self::deleteOldTempFile($tempDir . $tempFilename);
476	}
477	$exists = self::getDB()->querySingle("select name from " . self::table() . " where name='%s'", $key);
478	if($exists){
479	$res = mysql_query("update " . self::table() . " set val='" . mysql_real_escape_string($serialized) . "' where name='" . mysql_real_escape_string($key) . "'", $dbh);
480	} else {
481	$res = mysql_query("insert IGNORE into " . self::table() . " (name, val) values ('" . mysql_real_escape_string($key) . "', '" . mysql_real_escape_string($serialized) . "')", $dbh);
482	}
483	$err = mysql_error();
484	if($err){
485	$trace=debug_backtrace();
486	$caller=array_shift($trace);
487	wordfence::status(2, 'error', "Wordfence DB error in " . $caller['file'] . " line " . $caller['line'] . ": $err");
488	return false;
489	}
490	}
491	return true;
492	}
493	private static function deleteOldTempFile($filename){
494	if(file_exists($filename)){
495	unlink($filename);
496	}
497	}
498	private static function getTempDir(){
499	if(! self::$tmpDirCache){
500	$dirs = array(wfUtils::getPluginBaseDir() . 'wordfence/tmp/', sys_get_temp_dir(), ABSPATH . 'wp-content/uploads/');
501	$finalDir = 'notmp';
502	wfUtils::errorsOff();
503	foreach($dirs as $dir){
504	$dir = rtrim($dir, '/') . '/';
505	$fh = @fopen($dir . 'wftmptest.txt', 'w');
506	if(! $fh){ continue; }
507	$bytes = @fwrite($fh, 'test');
508	if($bytes != 4){ @fclose($fh); continue; }
509	@fclose($fh);
510	if(! @unlink($dir . 'wftmptest.txt')){ continue; }
511	$finalDir = $dir;
512	break;
513	}
514	wfUtils::errorsOn();
515	self::$tmpDirCache = $finalDir;
516	}
517	if(self::$tmpDirCache == 'notmp'){
518	return false;
519	} else {
520	return self::$tmpDirCache;
521	}
522	}
523	public static function f($key){
524	echo esc_attr(self::get($key));
525	}
526	public static function cb($key){
527	if(self::get($key)){
528	echo ' checked ';
529	}
530	}
531	public static function sel($key, $val, $isDefault = false){
532	if((! self::get($key)) && $isDefault){ echo ' selected '; }
533	if(self::get($key) == $val){ echo ' selected '; }
534	}
535	public static function getArray(){
536	$ret = array();
537	$q = self::getDB()->query("select name, val from " . self::table());
538	while($row = mysql_fetch_assoc($q)){
539	self::$cache[$row['name']] = $row['val'];
540	}
541	return self::$cache;
542	}
543	private static function getDB(){
544	if(! self::$DB){
545	self::$DB = new wfDB();
546	}
547	return self::$DB;
548	}
549	private static function table(){
550	if(! self::$table){
551	global $wpdb;
552	self::$table = $wpdb->base_prefix . 'wfConfig';
553	}
554	return self::$table;
555	}
556	public static function haveAlertEmails(){
557	$emails = self::getAlertEmails();
558	return sizeof($emails) > 0 ? true : false;
559	}
560	public static function getAlertEmails(){
561	$dat = explode(',', self::get('alertEmails'));
562	$emails = array();
563	foreach($dat as $email){
564	if(preg_match('/\@/', $email)){
565	$emails[] = trim($email);
566	}
567	}
568	return $emails;
569	}
570	public static function getAlertLevel(){
571	if(self::get('alertOn_warnings')){
572	return 2;
573	} else if(self::get('alertOn_critical')){
574	return 1;
575	} else {
576	return 0;
577	}
578	}
579	}
580	?>
581