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class wfScanner {
	const SCAN_TYPE_QUICK = 'quick';
	const SCAN_TYPE_LIMITED = 'limited';
	const SCAN_TYPE_STANDARD = 'standard';
	const SCAN_TYPE_HIGH_SENSITIVITY = 'highsensitivity';
	const SCAN_TYPE_CUSTOM = 'custom';
	
	const SCAN_SCHEDULING_MODE_AUTOMATIC = 'auto';
	const SCAN_SCHEDULING_MODE_MANUAL = 'manual';
	
	const MANUAL_SCHEDULING_ONCE_DAILY = 'onceDaily';
	const MANUAL_SCHEDULING_TWICE_DAILY = 'twiceDaily';
	const MANUAL_SCHEDULING_EVERY_OTHER_DAY = 'everyOtherDay';
	const MANUAL_SCHEDULING_WEEKDAYS = 'weekdays';
	const MANUAL_SCHEDULING_WEEKENDS = 'weekends';
	const MANUAL_SCHEDULING_ODD_DAYS_WEEKENDS = 'oddDaysWE';
	const MANUAL_SCHEDULING_CUSTOM = 'custom';
	
	const SIGNATURE_MODE_PREMIUM = 'premium';
	const SIGNATURE_MODE_COMMUNITY = 'community';
	
	const STATUS_PENDING = 'pending';
	const STATUS_RUNNING = 'running';
	const STATUS_RUNNING_WARNING = 'running-warning';
	const STATUS_COMPLETE_SUCCESS = 'complete-success';
	const STATUS_COMPLETE_WARNING = 'complete-warning';
	const STATUS_PREMIUM = 'premium';
	const STATUS_DISABLED = 'disabled';

	const STAGE_SPAMVERTISING_CHECKS = 'spamvertising';
	const STAGE_SPAM_CHECK = 'spam';
	const STAGE_BLACKLIST_CHECK = 'blacklist';
	const STAGE_SERVER_STATE = 'server';
	const STAGE_FILE_CHANGES = 'changes';
	const STAGE_PUBLIC_FILES = 'public';
	const STAGE_MALWARE_SCAN = 'malware';
	const STAGE_CONTENT_SAFETY = 'content';
	const STAGE_PASSWORD_STRENGTH = 'password';
	const STAGE_VULNERABILITY_SCAN = 'vulnerability';
	const STAGE_OPTIONS_AUDIT = 'options';
	
	const SUMMARY_TOTAL_USERS = 'totalUsers';
	const SUMMARY_TOTAL_PAGES = 'totalPages';
	const SUMMARY_TOTAL_POSTS = 'totalPosts';
	const SUMMARY_TOTAL_COMMENTS = 'totalComments';
	const SUMMARY_TOTAL_CATEGORIES = 'totalCategories';
	const SUMMARY_TOTAL_TABLES = 'totalTables';
	const SUMMARY_TOTAL_ROWS = 'totalRows';
	const SUMMARY_SCANNED_POSTS = 'scannedPosts';
	const SUMMARY_SCANNED_COMMENTS = 'scannedComments';
	const SUMMARY_SCANNED_FILES = 'scannedFiles';
	const SUMMARY_SCANNED_PLUGINS = 'scannedPlugins';
	const SUMMARY_SCANNED_THEMES = 'scannedThemes';
	const SUMMARY_SCANNED_USERS = 'scannedUsers';
	const SUMMARY_SCANNED_URLS = 'scannedURLs';
	
	const CENTRAL_STAGE_UPDATE_THRESHOLD = 5;
	
	private $_scanType = false;
	
	private $_summary = false;
	private $_destructRegistered = false;
	private $_dirty = false;
	
	/**
	 * Returns the singleton wfScanner with the user-configured scan type set.
	 * 
	 * @return wfScanner
	 */
	public static function shared() {
		static $_scanner = null;
		if ($_scanner === null) {
			$_scanner = new wfScanner();
		}
		return $_scanner;
	}
	
	/**
	 * Schedules a cron rescheduling to happen at the end of the current process's execution.
	 */
	public static function setNeedsRescheduling() {
		static $willReschedule = false;
		if (!$willReschedule) {
			$willReschedule = true;
			register_shutdown_function(array(self::shared(), 'scheduleScans'));
		}
	}
	
	/**
	 * Returns whether or not the scan type passed is valid.
	 * 
	 * @param $type
	 * @return bool
	 */
	public static function isValidScanType($type) {
		switch ($type) {
			case self::SCAN_TYPE_QUICK:
			case self::SCAN_TYPE_LIMITED:
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
			case self::SCAN_TYPE_CUSTOM:
			case self::SCAN_TYPE_STANDARD:
				return true;
		}
		return false;
	}
	
	/**
	 * Returns the display string for the given type.
	 * 
	 * @param string $type
	 * @return string
	 */
	public static function displayScanType($type) {
		switch ($type) {
			case self::SCAN_TYPE_QUICK:
				return __('Quick', 'wordfence');
			case self::SCAN_TYPE_LIMITED:
				return __('Limited', 'wordfence');
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
				return __('High Sensitivity', 'wordfence');
			case self::SCAN_TYPE_CUSTOM:
				return __('Custom', 'wordfence');
			case self::SCAN_TYPE_STANDARD:
			default:
				return __('Standard', 'wordfence');
		}
	}
	
	/**
	 * Returns the display detail string for the given type.
	 *
	 * @param string $type
	 * @return string
	 */
	public static function displayScanTypeDetail($type) {
		switch ($type) {
			case self::SCAN_TYPE_QUICK:
			case self::SCAN_TYPE_LIMITED:
				return __('Low resource utilization, limited detection capability', 'wordfence');
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
				return __('Standard detection capability, chance of false positives', 'wordfence');
			case self::SCAN_TYPE_CUSTOM:
				return __('Custom scan options selected', 'wordfence');
			case self::SCAN_TYPE_STANDARD:
			default:
				return __('Standard detection capability', 'wordfence');
		}
	}
	
	/**
	 * Returns an array of the scan options (as keys) and the corresponding value for the quick scan type. All omitted
	 * scan stages are considered disabled.
	 *
	 * @return array
	 */
	public static function quickScanTypeOptions() {
		$oldVersions = true;
		$wafStatus = true;
		if (wfConfig::get('scanType') == self::SCAN_TYPE_CUSTOM) { //Obey the setting in custom if that's the true scan type
			$oldVersions = wfConfig::get('scansEnabled_oldVersions');
			$wafStatus = wfConfig::get('scansEnabled_wafStatus');
		}
		
		return array_merge(self::_inactiveScanOptions(), array(
			'scansEnabled_oldVersions' => $oldVersions,
			'scansEnabled_wafStatus' => $wafStatus,
		));
	}
	
	/**
	 * Returns an array of the scan options (as keys) and the corresponding value for the limited scan type.
	 * 
	 * @return array
	 */
	public static function limitedScanTypeOptions() {
		return array_merge(self::_inactiveScanOptions(), array(
			'scansEnabled_checkHowGetIPs' => true,
			'scansEnabled_malware' => true,
			'scansEnabled_fileContents' => true,
			'scansEnabled_fileContentsGSB' => true,
			'scansEnabled_suspiciousOptions' => true,
			'scansEnabled_oldVersions' => true,
			'scansEnabled_wafStatus' => true,
			'lowResourceScansEnabled' => true,
			'scan_exclude' => wfConfig::get('scan_exclude', ''),
			'scan_include_extra' => wfConfig::get('scan_include_extra', ''),
			'scansEnabled_geoipSupport' => true,
		));
	}
	
	/**
	 * Returns an array of the scan options (as keys) and the corresponding value for the standard scan type.
	 *
	 * @return array
	 */
	public static function standardScanTypeOptions() {
		return array_merge(self::_inactiveScanOptions(), array(
			'spamvertizeCheck' => true,
			'checkSpamIP' => true,
			'scansEnabled_checkGSB' => true,
			'scansEnabled_checkHowGetIPs' => true,
			'scansEnabled_checkReadableConfig' => true,
			'scansEnabled_suspectedFiles' => true,
			'scansEnabled_core' => true,
			'scansEnabled_coreUnknown' => true,
			'scansEnabled_malware' => true,
			'scansEnabled_fileContents' => true,
			'scansEnabled_fileContentsGSB' => true,
			'scansEnabled_posts' => true,
			'scansEnabled_comments' => true,
			'scansEnabled_suspiciousOptions' => true,
			'scansEnabled_oldVersions' => true,
			'scansEnabled_suspiciousAdminUsers' => true,
			'scansEnabled_passwds' => true,
			'scansEnabled_diskSpace' => true,
			'scansEnabled_wafStatus' => true,
			'scan_exclude' => wfConfig::get('scan_exclude', ''),
			'scan_include_extra' => wfConfig::get('scan_include_extra', ''),
			'scansEnabled_geoipSupport' => true,
		));
	}
	
	/**
	 * Returns an array of the scan options (as keys) and the corresponding value for the high sensitivity scan type.
	 *
	 * @return array
	 */
	public static function highSensitivityScanTypeOptions() {
		return array_merge(self::_inactiveScanOptions(), array(
			'spamvertizeCheck' => true,
			'checkSpamIP' => true,
			'scansEnabled_checkGSB' => true,
			'scansEnabled_checkHowGetIPs' => true,
			'scansEnabled_checkReadableConfig' => true,
			'scansEnabled_suspectedFiles' => true,
			'scansEnabled_core' => true,
			'scansEnabled_themes' => true,
			'scansEnabled_plugins' => true,
			'scansEnabled_coreUnknown' => true,
			'scansEnabled_malware' => true,
			'scansEnabled_fileContents' => true,
			'scansEnabled_fileContentsGSB' => true,
			'scansEnabled_posts' => true,
			'scansEnabled_comments' => true,
			'scansEnabled_suspiciousOptions' => true,
			'scansEnabled_oldVersions' => true,
			'scansEnabled_suspiciousAdminUsers' => true,
			'scansEnabled_passwds' => true,
			'scansEnabled_diskSpace' => true,
			'scansEnabled_wafStatus' => true,
			'other_scanOutside' => true,
			'scansEnabled_scanImages' => true,
			'scan_exclude' => wfConfig::get('scan_exclude', ''),
			'scan_include_extra' => wfConfig::get('scan_include_extra', ''),
			'scansEnabled_geoipSupport' => true,
		));
	}
	
	/**
	 * Returns an array of the scan options (as keys) and the corresponding value for the custom scan type.
	 *
	 * @return array
	 */
	public static function customScanTypeOptions() {
		$allOptions = self::_inactiveScanOptions();
		foreach ($allOptions as $key => &$value) {
			$value = wfConfig::get($key);
		}
		
		$allOptions['scansEnabled_geoipSupport'] = true;
		$allOptions['scansEnabled_highSense'] = false; //deprecated
		
		return $allOptions;
	}
	
	/**
	 * Returns an array of scan options and their inactive values for convenience in merging with the various scan type
	 * option arrays.
	 * 
	 * @return array
	 */
	protected static function _inactiveScanOptions() {
		return array(
			'spamvertizeCheck' => false,
			'checkSpamIP' => false,
			'scansEnabled_checkGSB' => false,
			'scansEnabled_checkHowGetIPs' => false,
			'scansEnabled_checkReadableConfig' => false,
			'scansEnabled_suspectedFiles' => false,
			'scansEnabled_core' => false,
			'scansEnabled_themes' => false,
			'scansEnabled_plugins' => false,
			'scansEnabled_coreUnknown' => false,
			'scansEnabled_malware' => false,
			'scansEnabled_fileContents' => false,
			'scan_include_extra' => '',
			'scansEnabled_fileContentsGSB' => false,
			'scansEnabled_posts' => false,
			'scansEnabled_comments' => false,
			'scansEnabled_suspiciousOptions' => false,
			'scansEnabled_oldVersions' => false,
			'scansEnabled_suspiciousAdminUsers' => false,
			'scansEnabled_passwds' => false,
			'scansEnabled_diskSpace' => false,
			'scansEnabled_wafStatus' => false,
			'other_scanOutside' => false,
			'scansEnabled_scanImages' => false,
			'scansEnabled_highSense' => false,
			'lowResourceScansEnabled' => false,
			'scan_exclude' => '',
			'scansEnabled_geoipSupport' => false,
		);
	}
	
	/**
	 * Returns the scan options only available to premium users.
	 *
	 * @return array
	 */
	protected static function _premiumScanOptions() {
		return array('spamvertizeCheck', 'checkSpamIP', 'scansEnabled_checkGSB');
	}
	
	/**
	 * Returns an array of weights for calculating the scan option status score.
	 * 
	 * @return array
	 */
	protected static function _scanOptionWeights() {
		return array(
			'spamvertizeCheck' => 0.05,
			'checkSpamIP' => 0.05,
			'scansEnabled_checkGSB' => 0.05,
			'scansEnabled_checkHowGetIPs' => 0.05,
			'scansEnabled_checkReadableConfig' => 0.05,
			'scansEnabled_suspectedFiles' => 0.05,
			'scansEnabled_core' => 0.05,
			'scansEnabled_themes' => 0,
			'scansEnabled_plugins' => 0,
			'scansEnabled_coreUnknown' => 0.05,
			'scansEnabled_malware' => 0.05,
			'scansEnabled_fileContents' => 0.1,
			'scan_include_extra' => 0,
			'scansEnabled_fileContentsGSB' => 0.05,
			'scansEnabled_posts' => 0.05,
			'scansEnabled_comments' => 0.05,
			'scansEnabled_suspiciousOptions' => 0.05,
			'scansEnabled_oldVersions' => 0.1,
			'scansEnabled_suspiciousAdminUsers' => 0.05,
			'scansEnabled_passwds' => 0.05,
			'scansEnabled_diskSpace' => 0.05,
			'other_scanOutside' => 0,
			'scansEnabled_scanImages' => 0,
			'scansEnabled_highSense' => 0,
			'lowResourceScansEnabled' => 0,
			'scan_exclude' => 0,
			'scansEnabled_geoipSupport' => 0,
			'scansEnabled_wafStatus' => 0,
		);
	}
	
	/**
	 * wfScanner constructor.
	 * @param int|bool $scanType If false, defaults to the config option `scanType`.
	 */
	public function __construct($scanType = false) {
		if ($scanType === false || !self::isValidScanType($scanType)) {
			$this->_scanType = wfConfig::get('scanType');
		}
		else {
			$this->_scanType = $scanType;
		}
	}
	
	/**
	 * Returns whether or not the scanner will run as premium.
	 * 
	 * @return bool
	 */
	public function isPremiumScan() {
		return !!wfConfig::get('isPaid');
	}
	
	/**
	 * Returns whether or not automatic scans will run.
	 * 
	 * @return bool
	 */
	public function isEnabled() {
		return !!wfConfig::get('scheduledScansEnabled');
	}
	
	/**
	 * Returns whether or not a scan is running. A scan is considered running if the timestamp
	 * under wf_scanRunning is within WORDFENCE_MAX_SCAN_LOCK_TIME seconds of now.
	 * 
	 * @return bool
	 */
	public function isRunning() {
		$scanRunning = wfConfig::get('wf_scanRunning');
		return ($scanRunning && time() - $scanRunning < WORDFENCE_MAX_SCAN_LOCK_TIME);
	}
	
	/**
	 * Returns the current scan scheduling mode.
	 * 
	 * @return string One of the SCAN_SCHEDULING_MODE_ constants
	 */
	public function schedulingMode() {
		if (wfConfig::get('isPaid') && wfConfig::get('schedMode') == 'manual') {
			return self::SCAN_SCHEDULING_MODE_MANUAL;
		}
		return self::SCAN_SCHEDULING_MODE_AUTOMATIC;
	}
	
	/**
	 * Returns the manual scheduling type. This is only applicable when the scheduling mode is
	 * SCAN_SCHEDULING_MODE_MANUAL.
	 * 
	 * @return string One of the MANUAL_SCHEDULING_ constants.
	 */
	public function manualSchedulingType() {
		return wfConfig::get('manualScanType', self::MANUAL_SCHEDULING_ONCE_DAILY);
	}
	
	/**
	 * Returns the start hour used for non-custom manual schedules. This is initially random but may be modified
	 * by the user later.
	 *
	 * @return int An hour number.
	 */
	public function manualSchedulingStartHour() {
		return wfConfig::get('schedStartHour');
	}
	
	/**
	 * Returns the currently defined custom schedule. This is only applicable when the scheduling mode is 
	 * SCAN_SCHEDULING_MODE_MANUAL and the manual type is set to MANUAL_SCHEDULING_CUSTOM.
	 * 
	 * @return array The array will be of the format array(0 => array(0 => 0, 1 => 0 ... 23 => 0), ... 6 => array(...))
	 */
	public function customSchedule() {
		$normalizedSchedule = array_fill(0, 7, array_fill(0, 24, 0));
		$storedSchedule = wfConfig::get_ser('scanSched', array());
		if (is_array($storedSchedule) && !empty($storedSchedule) && is_array($storedSchedule[0])) {
			foreach ($storedSchedule as $dayNumber => $day) {
				foreach ($day as $hourNumber => $enabled) {
					$normalizedSchedule[$dayNumber][$hourNumber] = wfUtils::truthyToInt($enabled);
				}
			}
		}
		return $normalizedSchedule;
	}
	
	public function shouldRunQuickScan() {
		if (!$this->isEnabled()) {
			return false;
		}
		
		if (time() - $this->lastQuickScanTime() < 79200) { //Do not run within 22 hours of a completed quick scan
			return false;
		} 
		
		$lastFullScanCompletion = (int) $this->lastScanTime();
		if (time() - $lastFullScanCompletion < 43200) { //Do not run within 12 hours of a completed full scan
			return false;
		}
		
		$nextFullScan = $this->nextScheduledScanTime();
		if ($nextFullScan === false || $nextFullScan - time() < 3600) { //Scans are not running (e.g., custom schedule selected with no times configured) or if scheduled, then avoid running within 1 hour of a pending full scan
			return false;
		}
		
		$now = time();
		$tzOffset = wfUtils::formatLocalTime('Z', $now);
		$currentDayOfWeekUTC = date('w', $now);
		$currentHourUTC = date('G', $now);
		$preferredHourUTC = false;
		
		if ($this->schedulingMode() == wfScanner::SCAN_SCHEDULING_MODE_MANUAL) {
			$manualType = $this->manualSchedulingType();
			$preferredHourUTC = round(($this->manualSchedulingStartHour() * 3600 - $tzOffset) / 3600, 2) % 24; //round() rather than floor() to account for fractional time zones
			switch ($manualType) {
				case self::MANUAL_SCHEDULING_ONCE_DAILY:
				case self::MANUAL_SCHEDULING_EVERY_OTHER_DAY:
				case self::MANUAL_SCHEDULING_WEEKDAYS:
				case self::MANUAL_SCHEDULING_WEEKENDS:
				case self::MANUAL_SCHEDULING_ODD_DAYS_WEEKENDS:
					$preferredHourUTC = ($preferredHourUTC + 12) % 24;
					break;
				case self::MANUAL_SCHEDULING_TWICE_DAILY:
					$preferredHourUTC = ($preferredHourUTC + 6) % 24; //When automatic scans run twice daily, possibly run a quick scan 6 hours offset (will only run if either scheduled one fails for some reason)
					break;
				case self::MANUAL_SCHEDULING_CUSTOM: //Iterate from the current day backwards and base it on the first time found, may or may not actually run depending on the spacing of the custom schedule
					$preferredHourUTC = false;
					$oneWeekSchedule = $this->customSchedule();
					for ($i = 7; $i > 0; $i--) { //Sample sequence for `$currentDayOfWeekUTC == 2` => 2, 1, 0, 6, 5, 4, 3
						$checkingDayNumber = ($currentDayOfWeekUTC + $i) % 7;
						$day = $oneWeekSchedule[$checkingDayNumber];
						$dayHour = array_search(1, $day);
						if ($dayHour !== false) {
							$preferredHourUTC = (round(($dayHour * 3600 - $tzOffset) / 3600, 2) + 12) % 24;
							break;
						}
					}
					break;
			}
			
			if ($preferredHourUTC !== false) { //The preferred hour of a manual scan schedule has been determined, run the quick scan at the desired offset if we're in that hour
				return ($currentHourUTC >= $preferredHourUTC);
			}
		}
		
		$noc1ScanSchedule = wfConfig::get_ser('noc1ScanSchedule', array());
		if (count($noc1ScanSchedule)) {
			$preferredHourUTC = (((int) (($noc1ScanSchedule[0] % 86400) / 3600)) + 12) % 24;
			return ($currentHourUTC >= $preferredHourUTC);
		}
		
		return false; //If we've reached this point, the scan config is in a weird state so just skip the quick scan
	}
	
	/**
	 * Returns an associative array containing the current state each scan stage and its corresponding status.
	 * 
	 * @return array
	 */
	public function stageStatus() {
		$status = $this->_defaultStageStatuses();
		$runningStatus = wfConfig::get_ser('scanStageStatuses', array(), false);
		$status = array_merge($status, $runningStatus);
		
		foreach ($status as $stage => &$value) { //Convert value array into status only
			$value = $value['status'];
			if (!$this->isRunning() && $value == self::STATUS_RUNNING) {
				$value = self::STATUS_PENDING;
			}
		}
		
		return $status;
	}
	
	/**
	 * Returns an array of all scan options for the given stage that are enabled.
	 * 
	 * @param string $stage One of the STAGE_ constants
	 * @return array
	 */
	private function _scanJobsForStage($stage) {
		$always = array();
		$options = array();
		switch ($stage) {
			case self::STAGE_SPAMVERTISING_CHECKS:
				$options = array(
					'spamvertizeCheck',
				);
				break;
			case self::STAGE_SPAM_CHECK:
				$options = array(
					'checkSpamIP',
				);
				break;
			case self::STAGE_BLACKLIST_CHECK:
				$options = array(
					'scansEnabled_checkGSB',
				);
				break;
			case self::STAGE_SERVER_STATE:
				if ($this->scanType() != self::SCAN_TYPE_QUICK) {
					$always = array(
						'checkSkippedFiles',
					);
				}
				$options = array(
					'scansEnabled_checkHowGetIPs',
					'scansEnabled_diskSpace',
					'scansEnabled_wafStatus',
					'scansEnabled_geoipSupport',
				);
				break;
			case self::STAGE_FILE_CHANGES:
				$options = array(
					'scansEnabled_core',
					'scansEnabled_themes',
					'scansEnabled_plugins',
					'scansEnabled_coreUnknown',
				);
				break;
			case self::STAGE_PUBLIC_FILES:
				$options = array(
					'scansEnabled_checkReadableConfig',
					'scansEnabled_suspectedFiles',
				);
				break;
			case self::STAGE_MALWARE_SCAN:
				$options = array(
					'scansEnabled_malware',
					'scansEnabled_fileContents',
				);
				break;
			case self::STAGE_CONTENT_SAFETY:
				$options = array(
					'scansEnabled_posts',
					'scansEnabled_comments',
					'scansEnabled_fileContentsGSB', 
				);
				break;
			case self::STAGE_PASSWORD_STRENGTH:
				$options = array(
					'scansEnabled_passwds',
				);
				break;
			case self::STAGE_VULNERABILITY_SCAN:
				$options = array(
					'scansEnabled_oldVersions',
				);
				break;
			case self::STAGE_OPTIONS_AUDIT:
				$options = array(
					'scansEnabled_suspiciousOptions',
					'scansEnabled_suspiciousAdminUsers',
				);
				break;
		}
		
		$enabledOptions = $this->scanOptions();
		$filteredOptions = array();
		foreach ($options as $o) {
			if (isset($enabledOptions[$o]) && $enabledOptions[$o]) {
				$filteredOptions[] = $o;
			}
		}
		
		return array_merge($filteredOptions, $always);
	}
	
	/**
	 * Returns an associative array containing each scan stage's default state. The keys are the stage identifiers and the value
	 * is an array in the format 
	 * array(
	 * 		'started' => the number of tasks for this stage that have started (initially 0),
	 * 		'finished' => the number of tasks that have started and finished (initially 0),
	 * 		'expected' => the expected number of tasks to run for this stage (based on the scan type and options enabled)
	 * )
	 * 
	 * @return array
	 */
	private function _defaultStageStatuses() {
		$status = array(
			self::STAGE_SPAMVERTISING_CHECKS => array('status' => ($this->isPremiumScan() ? self::STATUS_PENDING : self::STATUS_PREMIUM), 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_SPAM_CHECK => array('status' => ($this->isPremiumScan() ? self::STATUS_PENDING : self::STATUS_PREMIUM), 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_BLACKLIST_CHECK => array('status' => ($this->isPremiumScan() ? self::STATUS_PENDING : self::STATUS_PREMIUM), 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_SERVER_STATE => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_FILE_CHANGES => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_PUBLIC_FILES => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_MALWARE_SCAN => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_CONTENT_SAFETY => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_PASSWORD_STRENGTH => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_VULNERABILITY_SCAN => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
			self::STAGE_OPTIONS_AUDIT => array('status' => self::STATUS_PENDING, 'started' => 0, 'finished' => 0, 'expected' => 0),
		);
		
		foreach ($status as $stage => &$parameters) {
			if ($parameters['status'] == self::STATUS_PREMIUM) {
				continue;
			}
			
			$jobs = $this->_scanJobsForStage($stage);
			if (count($jobs)) {
				$parameters['expected'] = count($jobs);
			}
			else {
				$parameters['status'] = self::STATUS_DISABLED;
			}
		}
		
		return $status;
	}
	
	/**
	 * Resets the state of the scan stage status record.
	 */
	public function resetStages() {
		if ($this->scanType() == self::SCAN_TYPE_QUICK) { //Suppress for quick scans
			return;
		}
		wfConfig::set_ser('scanStageStatuses', $this->_defaultStageStatuses(), false, wfConfig::DONT_AUTOLOAD);
	}
	
	private function _shouldForceUpdate($stageID) {
		if ($stageID == wfScanner::STAGE_MALWARE_SCAN) {
			return true;
		}
		return false;
	}
	
	/**
	 * Increments the stage started counter and marks it as running if not already in that state.
	 * 
	 * @param string $stageID One of the STAGE_ constants
	 */
	public function startStage($stageID) {
		if ($this->scanType() == self::SCAN_TYPE_QUICK) { //Suppress for quick scans
			return;
		}
		
		$runningStatus = wfConfig::get_ser('scanStageStatuses', array(), false);
		if ($runningStatus[$stageID]['status'] != self::STATUS_RUNNING_WARNING) {
			$runningStatus[$stageID]['status'] = self::STATUS_RUNNING;
		}
		
		$runningStatus[$stageID]['started'] += 1;
		wfConfig::set_ser('scanStageStatuses', $runningStatus, false, wfConfig::DONT_AUTOLOAD);
		if (wfCentral::isConnected() && ($this->_shouldForceUpdate($stageID) || (time() - wfConfig::getInt('lastScanStageStatusUpdate', 0)) > self::CENTRAL_STAGE_UPDATE_THRESHOLD)) {
			wfCentral::updateScanStatus($runningStatus);
		}
	}
	
	/**
	 * Increments the stage finished counter and updates the stage status according to whether it's fully finished or encountered a negative status.
	 * 
	 * @param string $stageID One of the STAGE_ constants.
	 * @param string $status One of the wfIssues::STATUS_ constants
	 */
	public function completeStage($stageID, $status) {
		if ($this->scanType() == self::SCAN_TYPE_QUICK) { //Suppress for quick scans
			return;
		}
		
		$runningStatus = wfConfig::get_ser('scanStageStatuses', array(), false);
		
		if ($runningStatus[$stageID]['status'] == self::STATUS_RUNNING && ($status == wfIssues::STATUS_PROBLEM)) {
			$runningStatus[$stageID]['status'] = self::STATUS_RUNNING_WARNING;
		}
		
		$runningStatus[$stageID]['finished'] += 1;
		if ($runningStatus[$stageID]['finished'] >= $runningStatus[$stageID]['expected']) {
			if ($runningStatus[$stageID]['status'] == self::STATUS_RUNNING) {
				$runningStatus[$stageID]['status'] = self::STATUS_COMPLETE_SUCCESS;
			}
			else {
				$runningStatus[$stageID]['status'] = self::STATUS_COMPLETE_WARNING;
			}
		}
		
		wfConfig::set_ser('scanStageStatuses', $runningStatus, false, wfConfig::DONT_AUTOLOAD);
		if (wfCentral::isConnected()) {
			$forceSend = true; //Force sending the last stage completion update even if the timing would otherwise prevent it
			foreach ($runningStatus as $stageID => $stage) {
				if ($runningStatus[$stageID]['finished'] < $runningStatus[$stageID]['expected']) {
					$forceSend = false;
					break;
				}
			}
			
			if ($forceSend || (time() - wfConfig::getInt('lastScanStageStatusUpdate', 0)) > self::CENTRAL_STAGE_UPDATE_THRESHOLD) {
				wfCentral::updateScanStatus($runningStatus);
			}
		}

	}
	
	/**
	 * Returns the selected type of the scan.
	 * 
	 * @return string
	 */
	public function scanType() {
		switch ($this->_scanType) {
			case self::SCAN_TYPE_QUICK://SCAN_TYPE_QUICK is not user-selectable
			case self::SCAN_TYPE_LIMITED:
			case self::SCAN_TYPE_STANDARD:
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
			case self::SCAN_TYPE_CUSTOM:
				return $this->_scanType;
		}
		return self::SCAN_TYPE_STANDARD;
	}
	
	/**
	 * Returns the display name for the selected type of the scan.
	 *
	 * @return string
	 */
	public function scanTypeName() {
		switch ($this->_scanType) {
			case self::SCAN_TYPE_QUICK:
				return __('Quick Scan', 'wordfence');
			case self::SCAN_TYPE_LIMITED:
				return __('Limited Scan', 'wordfence');
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
				return __('High Sensitivity', 'wordfence');
			case self::SCAN_TYPE_CUSTOM:
				return __('Custom Scan', 'wordfence');
			case self::SCAN_TYPE_STANDARD:
			default:
				return __('Standard Scan', 'wordfence');
		}
	}
	
	/**
	 * Returns a normalized percentage (i.e., in the range [0, 1]) to the corresponding display percentage
	 * based on license type.
	 *
	 * @param float $percentage
	 * @return float
	 */
	protected function _normalizedPercentageToDisplay($percentage) {
		if ($this->isPremiumScan()) {
			return round($percentage, 2);
		}
		
		return round($percentage * 0.70, 2);
	}
	
	/**
	 * Returns a normalized percentage (i.e., in the range [0, 1]) for the scan type status indicator.
	 * 
	 * @return float
	 */
	public function scanTypeStatus() {
		$isFree = !wfConfig::get('isPaid');
		$weights = self::_scanOptionWeights();
		$options = $this->scanOptions();
		$score = 0.0;
		$premiumOptions = self::_premiumScanOptions();
		foreach ($options as $key => $value) {
			if ($isFree && array_search($key, $premiumOptions) !== false) {
				continue;
			}
			
			if ($value) {
				$score += $weights[$key];
			}
		}
		return $this->_normalizedPercentageToDisplay($score);
	}

	public function scanTypeStatusList() {
		$isFree = !wfConfig::get('isPaid');
		$weights = self::_scanOptionWeights();
		$options = $this->scanOptions();
		$disabledOptionCount = 0;
		$premiumDisabledOptionCount = 0;
		$percentage = 0.0;
		$premiumPercentage = 0.0;
		$premiumOptions = self::_premiumScanOptions();
		$statusList = array();
		foreach ($options as $key => $value) {
			if ($isFree && array_search($key, $premiumOptions) !== false) {
				$premiumPercentage += $weights[$key];
				$premiumDisabledOptionCount++;
				continue;
			}
			
			if (!$value && $weights[$key] > 0) {
				$percentage += $weights[$key];
				$disabledOptionCount++;
			}
		}
		
		$remainingPercentage = 1 - $this->scanTypeStatus();
		if ($isFree) {
			$remainingPercentage -= 0.30;
			$statusList[] = array(
				'percentage' => 0.30,
				'title'      => __('Enable Premium Scan Signatures.', 'wordfence'),
			);
		}
		
		if ($premiumPercentage > 0) {
			$subtraction = min($this->_normalizedPercentageToDisplay($premiumPercentage), $remainingPercentage);
			$remainingPercentage -= $subtraction;
			$statusList[] = array(
				'percentage' => $subtraction,
				'title'      => __('Enable Premium Reputation Checks.', 'wordfence'),
			);
		}

		if ($percentage > 0) {
			$subtraction = min($this->_normalizedPercentageToDisplay($percentage), $remainingPercentage);
			$statusList[] = array(
				'percentage' => $subtraction,
				'title' => sprintf(_n('Enable %d scan option.', 'Enable %d scan options.', $disabledOptionCount,'wordfence'), number_format_i18n($disabledOptionCount)),
			);
		}

		return $statusList;
	}
	/**
	 * Returns the malware signature feed that is in use.
	 *
	 * @return string
	 */
	public function signatureMode() {
		if ($this->isPremiumScan()) {
			return self::SIGNATURE_MODE_PREMIUM;
		}
		return self::SIGNATURE_MODE_COMMUNITY;
	}
	
	/**
	 * Returns a normalized percentage (i.e., in the range [0, 1]) for the reputation status indicator.
	 * 
	 * @return float
	 */
	public function reputationStatus() {
		$score = 0.0;
		if ($this->isPremiumScan()) {
			$options = $this->scanOptions();
			if ($options['spamvertizeCheck']) { $score += 0.333; }
			if ($options['checkSpamIP']) { $score += 0.333; }
			if ($options['scansEnabled_checkGSB']) { $score += 0.333; }
		}
		return round($score, 2);
	}

	/**
	 * @return array
	 */
	public function reputationStatusList() {
		$statusList = array();
		$options = $this->scanOptions();

		$reputationChecks = array(
			'spamvertizeCheck' => __('Enable scan option to check if this website is being "Spamvertised".', 'wordfence'),
			'checkSpamIP' => __('Enable scan option to check if your website IP is generating spam.', 'wordfence'),
			'scansEnabled_checkGSB' => __('Enable scan option to check if your website is on a domain blocklist.', 'wordfence'),
		);

		foreach ($reputationChecks as $option => $optionLabel) {
			if (!$this->isPremiumScan() || !$options[$option]) {
				$statusList[] = array(
					'percentage' => round(1 / count($reputationChecks), 2),
					'title'      => $optionLabel,
				);
			}
		}
		return $statusList;
	}

	/**
	 * Returns the options for the configured scan type.
	 * 
	 * @return array
	 */
	public function scanOptions() {
		switch ($this->scanType()) {
			case self::SCAN_TYPE_QUICK:
				return self::quickScanTypeOptions();
			case self::SCAN_TYPE_LIMITED:
				return self::limitedScanTypeOptions();
			case self::SCAN_TYPE_STANDARD:
				return self::standardScanTypeOptions();
			case self::SCAN_TYPE_HIGH_SENSITIVITY:
				return self::highSensitivityScanTypeOptions();
			case self::SCAN_TYPE_CUSTOM:
				return self::customScanTypeOptions();
		}
	}
	
	/**
	 * Returns the array of jobs for the scan type.
	 * 
	 * @return array
	 */
	public function jobs() {
		$options = $this->scanOptions();
		$preferredOrder = array(
			'checkSpamvertized' => array('spamvertizeCheck'), 
			'checkSpamIP' => array('checkSpamIP'), 
			'checkGSB' => array('scansEnabled_checkGSB'),
			'checkHowGetIPs' => array('scansEnabled_checkHowGetIPs'),
			'diskSpace' => array('scansEnabled_diskSpace'),
			'wafStatus' => array('scansEnabled_wafStatus'),
			'geoipSupport' => array('scansEnabled_geoipSupport'),
			'checkSkippedFiles' => ($this->scanType() != self::SCAN_TYPE_QUICK), //Always runs except for quick
			'knownFiles' => ($this->scanType() != self::SCAN_TYPE_QUICK), //Always runs except for quick, options are scansEnabled_core, scansEnabled_themes, scansEnabled_plugins, scansEnabled_coreUnknown, scansEnabled_malware
			'checkReadableConfig' => array('scansEnabled_checkReadableConfig'),
			'fileContents' => ($this->scanType() != self::SCAN_TYPE_QUICK), //Always runs except for quick, options are scansEnabled_fileContents and scansEnabled_fileContentsGSB
			'suspectedFiles' => array('scansEnabled_suspectedFiles'),
			'posts' => array('scansEnabled_posts'),
			'comments' => array('scansEnabled_comments'),
			'passwds' => array('scansEnabled_passwds'),
			'oldVersions' => array('scansEnabled_oldVersions'),
			'suspiciousAdminUsers' => array('scansEnabled_suspiciousAdminUsers'),
			'suspiciousOptions' => array('scansEnabled_suspiciousOptions'),
		);
		
		$jobs = array();
		foreach ($preferredOrder as $job => $enabler) {
			if ($enabler === true) {
				$jobs[] = $job;
			}
			else if (is_array($enabler)) {
				foreach ($enabler as $o) {
					if ($options[$o]) {
						$jobs[] = $job;
						break;
					}
				}
			}
		}
		return $jobs;
	}
	
	/**
	 * Returns whether or not the scanner should use its low resource mode.
	 * 
	 * @return bool
	 */
	public function useLowResourceScanning() {
		$options = $this->scanOptions();
		return $options['lowResourceScansEnabled'];
	}
	
	/**
	 * Returns the array of user-defined malware signatures for use by the scanner.
	 * 
	 * @return array
	 */
	public function userScanSignatures() {
		$options = $this->scanOptions();
		$value = $options['scan_include_extra'];
		$signatures = array();
		if (!empty($value)) {
			$regexs = explode("\n", $value);
			$id = 1000001;
			foreach ($regexs as $r) {
				$r = rtrim($r, "\r");
				if (preg_match('/' . $r . '/i', "") !== false) {
					$signatures[] = array($id++, time(), $r, __('User defined scan pattern', 'wordfence'));
				}
			}
		}
		return $signatures;
	}
	
	/**
	 * Returns whether or not the scanner should check files outside of the WordPress installation.
	 * 
	 * @return bool
	 */
	public function scanOutsideWordPress() {
		$options = $this->scanOptions();
		return $options['other_scanOutside'];
	}
	
	/**
	 * Returns the cleaned up array of user-excluded scan paths and patterns.
	 * 
	 * @return array
	 */
	public function userExclusions() {
		$options = $this->scanOptions();
		$value = $options['scan_exclude'];
		return explode("\n", wfUtils::cleanupOneEntryPerLine($value));
	}
	
	/**
	 * Fetches the scan summary items into the internal cache.
	 */
	private function _fetchSummaryItems() {
		if ($this->_summary !== false) { 
			return;
		}
		
		$this->_summary = wfConfig::get_ser('wf_summaryItems', array());
	}
	
	/**
	 * Writes the scan summary cache to permanent storage.
	 */
	private function _saveSummaryItems() {
		if ($this->_summary !== false && $this->_dirty) {
			$this->_summary['lastUpdate'] = time();
			wfConfig::set_ser('wf_summaryItems', $this->_summary);
		}
		$this->_dirty = false;
	}
	
	/**
	 * Saves the scan summary cache if it has been more than two seconds since the last update.
	 * 
	 * @return bool Whether or not it saved.
	 */
	private function _maybeSaveSummaryItems() {
		if ($this->_summary !== false && $this->_summary['lastUpdate'] < (time() - 2)) {
			$this->_saveSummaryItems();
			return true;
		}
		return false;
	}
	
	/**
	 * Populates the scan summary with the default counters.
	 */
	public function resetSummaryItems() {
		global $wpdb;
		
		$this->_summary = array();
		$this->_summary[self::SUMMARY_SCANNED_POSTS] = 0;
		$this->_summary[self::SUMMARY_SCANNED_COMMENTS] = 0;
		$this->_summary[self::SUMMARY_SCANNED_FILES] = 0;
		$this->_summary[self::SUMMARY_SCANNED_PLUGINS] = 0;
		$this->_summary[self::SUMMARY_SCANNED_THEMES] = 0;
		$this->_summary[self::SUMMARY_SCANNED_USERS] = 0;
		$this->_summary[self::SUMMARY_SCANNED_URLS] = 0;
		
		$this->_dirty = true;
		$this->_saveSummaryItems();
	}
	
	/**
	 * Forces a save of the scan summary cache.
	 */
	public function flushSummaryItems() {
		$this->_saveSummaryItems();
	}
	
	/**
	 * Returns the corresponding summary value for $key or $default if not found.
	 * 
	 * @param $key
	 * @param mixed $default The value returned if there is no value for $key.
	 * @return mixed
	 */
	public function getSummaryItem($key, $default = false) {
		$this->_fetchSummaryItems();
		if (isset($this->_summary[$key])) {
			return $this->_summary[$key];
		}
		return $default;
	}
	
	/**
	 * Sets the summary item $key as $value.
	 * 
	 * @param $key
	 * @param $value
	 */
	public function setSummaryItem($key, $value) {
		$this->_fetchSummaryItems();
		$this->_summary[$key] = $value;
		$this->_dirty = true;
		
		if (!$this->_maybeSaveSummaryItems() && !$this->_destructRegistered) {
			register_shutdown_function(array($this, 'flushSummaryItems'));
			$this->_destructRegistered = true;
		}
	}
	
	/**
	 * Atomically increments the summary item under $key by $value.
	 * 
	 * @param $key
	 * @param int $value
	 */
	public function incrementSummaryItem($key, $value = 1) {
		if ($value == 0) { return; }
		$this->_fetchSummaryItems();
		if (isset($this->_summary[$key])) {
			$this->_summary[$key] += $value;
			$this->_dirty = true;
			
			if (!$this->_maybeSaveSummaryItems() && !$this->_destructRegistered) {
				register_shutdown_function(array($this, 'flushSummaryItems'));
				$this->_destructRegistered = true;
			}
		}
	}
	
	/**
	 * Schedules a single scan for the given time. If $originalTime is provided, it will be associated with the cron.
	 * 
	 * @param $futureTime
	 * @param bool|int $originalTime
	 */
	public function scheduleSingleScan($futureTime, $originalTime = false) {
		if (is_main_site()) { // Removed ability to activate on network site in v5.3.12
			if ($originalTime === false) {
				$originalTime = $futureTime;
			}
			wp_schedule_single_event($futureTime, 'wordfence_start_scheduled_scan', array((int) $originalTime));
			
			//Saving our own copy of the schedule because the wp-cron functions all require the args list to act
			$allScansScheduled = wfConfig::get_ser('allScansScheduled', array());
			$allScansScheduled[] = array('timestamp' => $futureTime, 'args' => array((int) $originalTime));
			wfConfig::set_ser('allScansScheduled', $allScansScheduled);
		}
	}
	
	/**
	 * Clears all scheduled scan cron jobs and re-creates them.
	 */
	public function scheduleScans() {
		$this->unscheduleAllScans();
		if (!$this->isEnabled()) {
			return;
		}
		
		if ($this->schedulingMode() == wfScanner::SCAN_SCHEDULING_MODE_MANUAL) {
			//Generate a two-week schedule
			$manualType = $this->manualSchedulingType();
			$preferredHour = $this->manualSchedulingStartHour();
			switch ($manualType) {
				case self::MANUAL_SCHEDULING_ONCE_DAILY:
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						$day[$preferredHour] = 1;
					}
					break;
				case self::MANUAL_SCHEDULING_TWICE_DAILY:
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						$day[$preferredHour] = 1;
						$day[($preferredHour + 12) % 24] = 1;
					}
					break;
				case self::MANUAL_SCHEDULING_EVERY_OTHER_DAY:
					$baseDay = floor(time() / 86400);
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						if (($baseDay + $dayNumber) % 2) {
							$day[$preferredHour] = 1;
						}
					}
					break;
				case self::MANUAL_SCHEDULING_WEEKDAYS:
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						if ($dayNumber > 0 && $dayNumber < 6) {
							$day[$preferredHour] = 1;
						}
					}
					break;
				case self::MANUAL_SCHEDULING_WEEKENDS:
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						if ($dayNumber == 0 || $dayNumber == 6) {
							$day[$preferredHour] = 1;
						}
					}
					break;
				case self::MANUAL_SCHEDULING_ODD_DAYS_WEEKENDS:
					$schedule = array_fill(0, 14, array_fill(0, 24, 0));
					foreach ($schedule as $dayNumber => &$day) {
						if ($dayNumber == 0 || $dayNumber == 6 || ($dayNumber % 2)) {
							$day[$preferredHour] = 1;
						}
					}
					break;
				case self::MANUAL_SCHEDULING_CUSTOM:
					$oneWeekSchedule = $this->customSchedule();
					$schedule = array();
					foreach ($oneWeekSchedule as $day) { $schedule[] = $day; }
					foreach ($oneWeekSchedule as $day) { $schedule[] = $day; }
					break;
			}
			
			$now = time();
			$tzOffset = wfUtils::formatLocalTime('Z', $now);
			
			//Apply the time zone shift so the start times align to the server's time zone
			$shiftedSchedule = array_fill(0, 14, array());
			foreach ($schedule as $dayNumber => $day) {
				foreach ($day as $hourNumber => $enabled) {
					if ($enabled) {
						$effectiveHour = round(($hourNumber * 3600 - $tzOffset) / 3600, 2); //round() rather than floor() to account for fractional time zones
						$wrappedHour = ($effectiveHour + 24) % 24;
						if ($effectiveHour < 0) {
							if ($dayNumber > 0) {
								$shiftedSchedule[$dayNumber - 1][$wrappedHour] = 1;
							}
						}
						else if ($effectiveHour > 23) {
							if ($dayNumber < count($schedule) - 1) {
								$shiftedSchedule[$dayNumber + 1][$wrappedHour] = 1;
							}
						}
						else {
							$shiftedSchedule[$dayNumber][$effectiveHour] = 1;
						}
					}
				}
			}
			$schedule = $shiftedSchedule;
			
			//Trim out all but an 8-day period
			$currentDayOfWeekUTC = date('w', $now);
			$currentHourUTC = date('G', $now);
			$periodStart = floor($now / 86400) * 86400 - $currentDayOfWeekUTC * 86400;
			$schedule = array_slice($schedule, $currentDayOfWeekUTC, null, true);
			$schedule = array_slice($schedule, 0, 8, true);
			
			//Schedule them
			foreach ($schedule as $dayNumber => $day) {
				foreach ($day as $hourNumber => $enabled) {
					if ($enabled) {
						if ($dayNumber == $currentDayOfWeekUTC && $currentHourUTC > $hourNumber) { //It's today and we've already passed its hour, skip it
							continue;
						}
						else if ($dayNumber > 6 && ($dayNumber % 7) == $currentDayOfWeekUTC && $currentHourUTC <= $hourNumber) { //It's one week from today but beyond the current hour, skip it this cycle
							continue;
						}

						$scanTime = $periodStart + $dayNumber * 86400 + $hourNumber * 3600 + wfWAFUtils::random_int(0, 3600);
						wordfence::status(4, 'info', sprintf(
							/* translators: 1. Day of week. 2. Hour of day. 3. Localized date. */
							__("Scheduled time for day %s hour %s is: %s", 'wordfence'),
							$dayNumber,
							$hourNumber,
							wfUtils::formatLocalTime('l jS \of F Y h:i:s A P', $scanTime)
						));
						$this->scheduleSingleScan($scanTime);
					}
				}
			}
		}
		else {
			$noc1ScanSchedule = wfConfig::get_ser('noc1ScanSchedule', array());
			foreach ($noc1ScanSchedule as $timestamp) {
				$timestamp = wfUtils::denormalizedTime($timestamp);
				if ($timestamp > time()) {
					$this->scheduleSingleScan($timestamp);
				}
			}
		}
	}
	
	public function unscheduleAllScans() {
		$allScansScheduled = wfConfig::get_ser('allScansScheduled', array());
		foreach ($allScansScheduled as $entry) {
			wp_unschedule_event($entry['timestamp'], 'wordfence_start_scheduled_scan', $entry['args']);
		}
		wp_clear_scheduled_hook('wordfence_start_scheduled_scan');
		wfConfig::set_ser('allScansScheduled', array());
	}
	
	public function nextScheduledScanTime() {
		$nextTime = false;
		$cron = _get_cron_array();
		foreach($cron as $key => $val){
			if(isset($val['wordfence_start_scheduled_scan'])){
				$nextTime = $key;
				break;
			}
		}
		return $nextTime;
	}
	
	public function lastScanTime() {
		return wfConfig::get('scanTime');
	}
	
	public function recordLastScanTime() {
		wfConfig::set('scanTime', microtime(true));
	}
	
	public function lastQuickScanTime() {
		return wfConfig::get('lastQuickScan', 0);
	}
	
	public function recordLastQuickScanTime() {
		wfConfig::set('lastQuickScan', microtime(true));
	}
}PK       ! ��FTM  M    common/wfTab.phpnu �[���        <?php

/**
 * Defines a UI tab.
 *
 * @property string $id
 * @property string $a
 * @property string $tabTitle
 * @property string $pageTitle
 * @property bool $active
 */
class wfTab {
	protected $_id;
	protected $_a;
	protected $_tabTitle;
	protected $_pageTitle;
	protected $_active;
	
	public function __construct($id, $a, $tabTitle, $pageTitle, $active = false) {
		$this->_id = $id;
		$this->_a = $a;
		$this->_tabTitle = $tabTitle;
		$this->_pageTitle = $pageTitle;
		$this->_active = $active;
	}
	
	public function __get($name) {
		switch ($name) {
			case 'id':
				return $this->_id;
			case 'a':
				return $this->_a;
			case 'tabTitle':
				return $this->_tabTitle;
			case 'pageTitle':
				return $this->_pageTitle;
			case 'active':
				return $this->_active;
		}
		
		throw new OutOfBoundsException('Invalid key: ' . $name);
	}
}PK       ! �b>�0  0    page/wfPage.phpnu �[���        <?php

class wfPage {
	const PAGE_DASHBOARD = 'dashboard';
	const PAGE_DASHBOARD_OPTIONS = 'dashboard-options';
	const PAGE_FIREWALL = 'firewall';
	const PAGE_FIREWALL_OPTIONS = 'firewall-options';
	const PAGE_BLOCKING = 'blocking';
	const PAGE_BLOCKING_OPTIONS = 'blocking-options';
	const PAGE_SCAN = 'scan';
	const PAGE_SCAN_OPTIONS = 'scan-options';
	const PAGE_TOOLS_2FA = 'tools-2fa';
	const PAGE_TOOLS_LIVE_TRAFFIC = 'tools-2fa';
	const PAGE_TOOLS_WHOIS = 'tools-whois';
	const PAGE_TOOLS_IMPORT_EXPORT = 'tools-import-export';
	const PAGE_TOOLS_DIAGNOSTICS = 'tools-diagnostics';
	const PAGE_SUPPORT = 'support';
	
	/** @var string */
	private $_identifier;
	
	/**
	 * Provides validation for a user-provided page identifier.
	 * 
	 * @param string $identifier
	 * @return bool
	 */
	public static function isValidPage($identifier) {
		switch ($identifier) {
			case self::PAGE_DASHBOARD:
			case self::PAGE_DASHBOARD_OPTIONS:
			case self::PAGE_FIREWALL:
			case self::PAGE_FIREWALL_OPTIONS:
			case self::PAGE_BLOCKING:
			case self::PAGE_BLOCKING_OPTIONS:
			case self::PAGE_SCAN:
			case self::PAGE_SCAN_OPTIONS:
			case self::PAGE_TOOLS_2FA:
			case self::PAGE_TOOLS_LIVE_TRAFFIC:
			case self::PAGE_TOOLS_IMPORT_EXPORT:
			case self::PAGE_TOOLS_WHOIS:
			case self::PAGE_TOOLS_DIAGNOSTICS:
			case self::PAGE_SUPPORT:
				return true;
		}
		return false;
	}
	
	/**
	 * Convenience function for returning the user-displayable label for the given page.
	 * 
	 * @param string $identifier
	 * @return bool|string
	 */
	public static function pageLabel($identifier) {
		$page = new wfPage($identifier);
		return $page->label();
	}
	
	/**
	 * Convenience function for returning the canonical URL for the given page.
	 * 
	 * @param string $identifier
	 * @param string|bool $source The source page identifier to append to the URL if wanted.
	 * @return string
	 */
	public static function pageURL($identifier, $source = false) {
		$page = new wfPage($identifier);
		return $page->url($source);
	}
	
	public function __construct($identifier) {
		$this->_identifier = $identifier;
	}
	
	public function __get($key) {
		switch ($key) {
			case 'identifier':
				return $this->_identifier;
		}
		
		throw new OutOfBoundsException("{$key} is not a valid property");
	}
	
	public function __isset($key) {
		switch ($key) {
			case 'identifier':
				return true;
		}
		return false;
	}
	
	/**
	 * Returns the user-displayable label for the page.
	 * 
	 * @return bool|string
	 */
	public function label() {
		switch ($this->identifier) {
			case self::PAGE_DASHBOARD:
				return __('Dashboard', 'wordfence');
			case self::PAGE_DASHBOARD_OPTIONS:
				return __('Global Options', 'wordfence');
			case self::PAGE_FIREWALL:
				return __('Firewall', 'wordfence');
			case self::PAGE_FIREWALL_OPTIONS:
				return __('Firewall Options', 'wordfence');
			case self::PAGE_BLOCKING:
				return __('Blocking', 'wordfence');
			case self::PAGE_BLOCKING_OPTIONS:
				return __('Blocking Options', 'wordfence');
			case self::PAGE_SCAN:
				return __('Scan', 'wordfence');
			case self::PAGE_SCAN_OPTIONS:
				return __('Scan Options', 'wordfence');
			case self::PAGE_TOOLS_2FA:
				return __('Two-Factor Authentication', 'wordfence');
			case self::PAGE_TOOLS_LIVE_TRAFFIC:
				return __('Live Traffic', 'wordfence');
			case self::PAGE_TOOLS_IMPORT_EXPORT:
				return __('Import/Export Options', 'wordfence');
			case self::PAGE_TOOLS_WHOIS:
				return __('Whois Lookup', 'wordfence');
			case self::PAGE_TOOLS_DIAGNOSTICS:
				return __('Diagnostics', 'wordfence');
			case self::PAGE_SUPPORT:
				return __('Support', 'wordfence');
		}
		
		return false;
	}
	
	/**
	 * Returns the canonical URL for the page.
	 * 
	 * @param string|bool $source The source page identifier to append to the URL if wanted.
	 * @return string
	 */
	public function url($source = false) {
		$page = '';
		$subpage = '';
		$hash = '';
		switch ($this->identifier) {
			case self::PAGE_DASHBOARD:
				$page = 'Wordfence';
				break;
			case self::PAGE_DASHBOARD_OPTIONS:
				$page = 'Wordfence';
				$subpage = 'global_options';
				break;
			case self::PAGE_FIREWALL:
				$page = 'WordfenceWAF';
				break;
			case self::PAGE_FIREWALL_OPTIONS:
				$page = 'WordfenceWAF';
				$subpage = 'waf_options';
				break;
			case self::PAGE_BLOCKING:
				$page = 'WordfenceWAF';
				$hash = '#top#blocking';
				break;
			case self::PAGE_BLOCKING_OPTIONS:
				$page = 'WordfenceWAF';
				$subpage = 'blocking_options';
				break;
			case self::PAGE_SCAN:
				$page = 'WordfenceScan';
				break;
			case self::PAGE_SCAN_OPTIONS:
				$page = 'WordfenceScan';
				$subpage = 'scan_options';
				break;
			case self::PAGE_TOOLS_2FA:
				$page = 'WordfenceTools';
				$subpage = 'twofactor';
				break;
			case self::PAGE_TOOLS_LIVE_TRAFFIC:
				$page = 'WordfenceTools';
				$subpage = 'livetraffic';
				break;
			case self::PAGE_TOOLS_IMPORT_EXPORT:
				$page = 'WordfenceTools';
				$subpage = 'importexport';
				break;
			case self::PAGE_TOOLS_WHOIS:
				$page = 'WordfenceTools';
				$subpage = 'whois';
				break;
			case self::PAGE_TOOLS_DIAGNOSTICS:
				$page = 'WordfenceTools';
				$subpage = 'diagnostics';
				break;
			case self::PAGE_SUPPORT:
				$page = 'WordfenceSupport';
				break;
		}
		
		$baseURL = 'admin.php?';
		$baseURL .= 'page=' . rawurlencode($page);
		if (!empty($subpage)) { $baseURL .= '&subpage=' . rawurlencode($subpage); }
		if (self::isValidPage($source))  { $baseURL .= '&source=' . rawurlencode($source); }
		if (!empty($hash)) { $baseURL .= $this->_hashURLEncode($hash); }
		if (function_exists('network_admin_url') && is_multisite()) {
			return network_admin_url($baseURL);
		}
		
		 return admin_url($baseURL);
	}
	
	/**
	 * Splits a URI hash component and URL-encodes its members.
	 * 
	 * @param string $hash
	 * @return string
	 */
	private function _hashURLEncode($hash) {
		$components = explode('#', $hash);
		foreach ($components as &$c) {
			$c = rawurlencode($c);
		}
		return implode('#', $components);
	}
	
	/**
	 * Returns an ordered array of the pages required to reach this page, this page being the last entry in the array.
	 * 
	 * @return array
	 */
	public function breadcrumbs() {
		switch ($this->identifier) {
			case self::PAGE_DASHBOARD:
				return array($this);
			case self::PAGE_DASHBOARD_OPTIONS:
				return array(new wfPage(wfPage::PAGE_DASHBOARD), $this);
			case self::PAGE_FIREWALL:
				return array($this);
			case self::PAGE_FIREWALL_OPTIONS:
				return array(new wfPage(wfPage::PAGE_FIREWALL), $this);
			case self::PAGE_BLOCKING:
				return array($this);
			case self::PAGE_BLOCKING_OPTIONS:
				return array(new wfPage(wfPage::PAGE_BLOCKING), $this);
			case self::PAGE_SCAN:
				return array($this);
			case self::PAGE_SCAN_OPTIONS:
				return array(new wfPage(wfPage::PAGE_SCAN), $this);
			case self::PAGE_TOOLS_2FA:
				return array($this);
			case self::PAGE_TOOLS_LIVE_TRAFFIC:
				return array($this);
			case self::PAGE_TOOLS_IMPORT_EXPORT:
				return array($this);
			case self::PAGE_TOOLS_WHOIS:
				return array($this);
			case self::PAGE_TOOLS_DIAGNOSTICS:
				return array($this);
			case self::PAGE_SUPPORT:
				return array($this);
		}
		
		return array();
	}
}
PK       !  ��-n@  n@    firewall/wfFirewall.phpnu �[���        <?php

class wfFirewall
{
	const FIREWALL_MODE_DISABLED = 'disabled';
	const FIREWALL_MODE_LEARNING = 'learning-mode';
	const FIREWALL_MODE_ENABLED = 'enabled';
	
	const PROTECTION_MODE_EXTENDED = 'extended';
	const PROTECTION_MODE_BASIC = 'basic';
	
	const RULE_MODE_COMMUNITY = 'community';
	const RULE_MODE_PREMIUM = 'premium';
	
	const BLACKLIST_MODE_DISABLED = 'disabled';
	const BLACKLIST_MODE_ENABLED = 'enabled';
	
	const UPDATE_FAILURE_RATELIMIT = 'ratelimit';
	const UPDATE_FAILURE_UNREACHABLE = 'unreachable';
	const UPDATE_FAILURE_FILESYSTEM = 'filesystem';
	
	/**
	 * Returns a string suitable for display of the firewall status.
	 * 
	 * @param null|string $status
	 * @param null|string $protection
	 * @return string
	 */
	public function displayText($status = null, $protection = null) {
		if ($status === null) { $status = $this->firewallMode(); }
		if ($protection === null) { $protection = $this->protectionMode(); }
		
		switch ($status) {
			case self::FIREWALL_MODE_ENABLED:
				$statusText = __('Enabled', 'wordfence');
				break;
			case self::FIREWALL_MODE_LEARNING:
				$statusText = __('Learning Mode', 'wordfence');
				break;
			default:
				return __('Disabled', 'wordfence');
		}
		
		switch ($protection) {
			case self::PROTECTION_MODE_EXTENDED:
				$protectionText = __('Extended Protection', 'wordfence');
				break;
			default:
				$protectionText = __('Basic Protection', 'wordfence');
				break;
		}
		
		return sprintf('%s (%s)', $statusText, $protectionText);
	}
	
	/**
	 * Syncs the status from WAF to the wfConfig table if $toDatabase is true, the reverse if false.
	 * 
	 * @param bool $toDatabase
	 */
	public function syncStatus($toDatabase = true) {
		if ($toDatabase) {
			try {
				$status = wfWAF::getInstance()->getStorageEngine()->getConfig('wafStatus');
				if (in_array($status, array(self::FIREWALL_MODE_DISABLED, self::FIREWALL_MODE_LEARNING, self::FIREWALL_MODE_ENABLED))) {
					wfConfig::set('waf_status', $status);
				}
			}
			catch (Exception $e) {
				//Ignore
			}
		}
		else {
			try {
				$status = wfConfig::get('waf_status');
				if (in_array($status, array(self::FIREWALL_MODE_DISABLED, self::FIREWALL_MODE_LEARNING, self::FIREWALL_MODE_ENABLED))) {
					wfWAF::getInstance()->getStorageEngine()->setConfig('wafStatus', $status);
				}
			}
			catch (Exception $e) {
				//Ignore
			}
		}
	}
	
	/**
	 * Tests the WAF configuration and returns true if successful.
	 * 
	 * @return bool
	 */
	public function testConfig() {
		try {
			wfWAF::getInstance()->getStorageEngine()->isDisabled();
		}
		catch (Exception $e) {
			return false;
		}
		
		return true;
	}
	
	/**
	 * Returns a normalized percentage (i.e., in the range [0, 1]) to the corresponding display percentage
	 * based on license type.
	 * 
	 * @param float $percentage
	 * @param bool $adjust Whether or not to adjust the range to [0, 0.7]
	 * @return float
	 */
	protected function _normalizedPercentageToDisplay($percentage, $adjust = true) {
		if (wfConfig::get('isPaid') || !$adjust) {
			return round($percentage, 2);
		}
		
		return round($percentage * 0.70, 2);
	}
	
	/**
	 * Returns the percentage calculation of the overall firewall status, which is displayed under "Firewall" 
	 * on the Dashboard page.
	 *
	 * @return float
	 */
	public function overallStatus() {
		try {
			$wafStatus = $this->wafStatus();
			$bruteForceStatus = $this->bruteForceStatus();
			
			$percentage = 0.0;
			$percentage += $wafStatus * 0.80;
			$percentage += $bruteForceStatus * 0.20;
			return $this->_normalizedPercentageToDisplay($percentage, false);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
		
		return 0.0;
	}
	
	public function statusList($section = null) {
		$statusList = array();
		$wafStatusList = $this->wafStatusList($section);
		$bruteForceStatusList = $this->bruteForceStatusList();
		
		foreach ($wafStatusList as $entry) {
			$entry['percentage'] *= 0.8;
			$statusList[] = $entry;
		}
		
		foreach ($bruteForceStatusList as $entry) {
			$entry['percentage'] *= 0.2;
			$statusList[] = $entry;
		}
			
		return array_filter($statusList);
	}
	
	/**
	 * Returns the percentage calculation of the WAF status, which is displayed under "Web Application
	 * Firewall" on the Firewall page.
	 * 
	 * @return float
	 */
	public function wafStatus() {
		try {
			$ruleStatus = $this->ruleStatus(true);
			$blacklistStatus = $this->blacklistStatus();
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			$extendedProtection = $wafEnabled && WFWAF_AUTO_PREPEND && !WFWAF_SUBDIRECTORY_INSTALL;
			$rateLimitingAdvancedBlockingEnabled = wfConfig::get('firewallEnabled', 1);

			if (!$wafEnabled) {
				return 0.0;
			}
			
			$percentage = 0.0;
			$percentage += $this->_normalizedPercentageToDisplay($ruleStatus * 0.35, true);
			$percentage += $blacklistStatus * 0.35;
			$percentage += ($extendedProtection ? 0.20 : 0.0);
			$percentage += ($rateLimitingAdvancedBlockingEnabled ? 0.10 : 0.0);
			return $this->_normalizedPercentageToDisplay($percentage, false);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
		
		return 0.0;
	}

	public function wafStatusList($section = null) {
		$statusList = array();
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			if (!$wafEnabled) {
				return array(
					array(
						'percentage' => 1.0,
						'title'      => __('Enable firewall.', 'wordfence'),
					),
				);
			}

			// Get percent of rules enabled.
			$ruleStatus = $this->ruleStatusDescription(true);
			$premiumStatus = array();
			if (!wfConfig::get('isPaid')) {
				$premiumStatus = array(
					'percentage' => 0.30,
					'title'      => __('Enable Premium Rules.', 'wordfence'),
				);
			}

			if ($section === 'rules') {
				if ($ruleStatus) {
					$ruleStatus['percentage'] = $this->_normalizedPercentageToDisplay($ruleStatus['percentage']);
				}
				return array_filter(array($ruleStatus, $premiumStatus));
			}
			if ($premiumStatus) {
				$premiumStatus['percentage'] *= 0.35;
				$premiumStatus['percentage'] = $this->_normalizedPercentageToDisplay($premiumStatus['percentage'], false);
			}
			if ($ruleStatus) {
				$ruleStatus['percentage'] *= 0.35;
				$ruleStatus['percentage'] = $this->_normalizedPercentageToDisplay($ruleStatus['percentage']);
			}
			$statusList = array_merge($statusList, array($ruleStatus), array($premiumStatus));

			$blacklistStatus = $this->blacklistStatusDescription();
			if ($section === 'blacklist') {
				return array_filter(array($blacklistStatus));
			}
			if ($blacklistStatus) {
				$blacklistStatus['percentage'] *= 0.35;
				$blacklistStatus['percentage'] = $this->_normalizedPercentageToDisplay($blacklistStatus['percentage'], false);
			}
			$statusList = array_merge($statusList, array($blacklistStatus));

			$extendedProtection = $wafEnabled && WFWAF_AUTO_PREPEND && !WFWAF_SUBDIRECTORY_INSTALL;
			if (!$extendedProtection) {
				$statusList[] = array(
					'percentage' => $this->_normalizedPercentageToDisplay(0.20, false),
					'title' => __('Optimize the Wordfence Firewall.', 'wordfence'),
				);
			}

			$rateLimitingAdvancedBlockingEnabled = wfConfig::get('firewallEnabled', 1);
			if (!$rateLimitingAdvancedBlockingEnabled) {
				$statusList[] = array(
					'percentage' => $this->_normalizedPercentageToDisplay(0.10, false),
					'title' => __('Enable Rate Limiting and Advanced Blocking.', 'wordfence'),
				);
			}

			return array_filter($statusList);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
		
		if (!WFWAF_OPERATIONAL) {
			return array(array('percentage' => 1.0, 'title' => __('Repair the Wordfence Firewall configuration.', 'wordfence')));
		}

		return array();
	}
	
	/**
	 * Returns the status of the WAF.
	 * 
	 * @return string
	 */
	public function firewallMode() {
		try {
			return (!WFWAF_ENABLED ? 'disabled' : wfWAF::getInstance()->getStorageEngine()->getConfig('wafStatus'));
		}
		catch (Exception $e) {
			//Ignore
		}
		
		return self::FIREWALL_MODE_DISABLED;
	}
	
	/**
	 * Returns the current protection mode configured for the WAF.
	 * 
	 * @return string
	 */
	public function protectionMode() {
		if (defined('WFWAF_AUTO_PREPEND') && WFWAF_AUTO_PREPEND) {
			return self::PROTECTION_MODE_EXTENDED;
		}
		return self::PROTECTION_MODE_BASIC;
	}
	
	/**
	 * Returns whether or not this installation is in a subdirectory of another WordPress site with the WAF already optimized.
	 * 
	 * @return bool
	 */
	public function isSubDirectoryInstallation() {
		if (defined('WFWAF_SUBDIRECTORY_INSTALL') && WFWAF_SUBDIRECTORY_INSTALL) {
			return true;
		}
		return false;
	}
	
	/**
	 * Returns the percentage calculation of the firewall rule status, which is displayed under "Firewall Rules" on the
	 * Firewall page.
	 * 
	 * The calculation is the number of rules enabled divided by the total number of rules. If the WAF is in learning 
	 * mode, no rules are enforced, so it's clamped to 0%.
	 * 
	 * @param bool $round Round the percentage (in the range [0, 1]) to be only whole percentages.
	 * @return float
	 */
	public function ruleStatus($round = false) {
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			if (!$wafEnabled) {
				return 0.0;
			}
			
			/*$learningMode = !!wfWAF::getInstance()->isInLearningMode();
			if ($learningMode) {
				return 0.0;
			}*/
			
			$rules = wfWAF::getInstance()->getRules();
			$disabledRules = (array) wfWAF::getInstance()->getStorageEngine()->getConfig('disabledRules');
			/** @var wfWAFRule $rule */
			$enabledCount = 0;
			foreach ($rules as $ruleID => $rule) {
				if (isset($disabledRules[$ruleID]) && $disabledRules[$ruleID]) {
					continue;
				}
				
				$enabledCount++;
			}
			
			$percentEnabled = (count($rules) == 0 ? 0 : $enabledCount / count($rules));
			if ($round) {
				return round($percentEnabled, 2);
			}
			
			return $this->_normalizedPercentageToDisplay($percentEnabled);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
		
		return 0.0;
	}

	/**
	 * @param bool $round
	 * @return array
	 */
	public function ruleStatusDescription($round = false) {
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			if (!$wafEnabled) {
				return array(
					'percentage' => 1.0,
					'title'      => __('Enable firewall.', 'wordfence'),
				);
			}
			
			/*$learningMode = !!wfWAF::getInstance()->isInLearningMode();
			if ($learningMode) {
				return 0.0;
			}*/

			$rules = wfWAF::getInstance()->getRules();
			$disabledRules = (array) wfWAF::getInstance()->getStorageEngine()->getConfig('disabledRules');
			/** @var wfWAFRule $rule */
			$enabledCount = 0;
			foreach ($rules as $ruleID => $rule) {
				if (isset($disabledRules[$ruleID]) && $disabledRules[$ruleID]) {
					continue;
				}

				$enabledCount++;
			}
			
			$percentEnabled = 1.0 - ((float) (count($rules) == 0 ? 0 : $enabledCount / count($rules)));
			if ($percentEnabled === 0.0) {
				return array();
			}
			$reenbleCount = count($rules) - $enabledCount;
			return array(
				'percentage' => ($round ? round($percentEnabled, 2) : $percentEnabled),
				'title'      => sprintf(_n('Re-enable %d firewall rule.', 'Re-enable %d firewall rules.', $reenbleCount, 'wordfence'), number_format_i18n($reenbleCount)),
			);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}

		return array(
			'percentage' => 1.0,
			'title'      => __('Enable firewall.', 'wordfence'),
		);
	}
	
	/**
	 * Returns the rule feed that is in use.
	 * 
	 * @return string
	 */
	public function ruleMode() {
		if (wfConfig::get('isPaid')) {
			return self::RULE_MODE_PREMIUM;
		}
		return self::RULE_MODE_COMMUNITY;
	}
	
	/**
	 * Returns 100% if the blacklist is enabled, 0% if not.
	 * 
	 * @return float
	 */
	public function blacklistStatus() {
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			if (!$wafEnabled) {
				return 0.0;
			}
			
			return $this->blacklistMode() == self::BLACKLIST_MODE_ENABLED ? 1.0 : 0.0;
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
		
		return 0.0;
	}
	
	/**
	 * Returns 100% if the blacklist is enabled, 0% if not.
	 *
	 * @return array
	 */
	public function blacklistStatusDescription() {
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			if (!$wafEnabled) {
				return array(
					'percentage' => 1.0,
					'title'      => __('Enable Firewall.', 'wordfence'),
				);
			}
			
			if ($this->blacklistMode() == self::BLACKLIST_MODE_ENABLED) {
				return array();
			}
			return array(
				'percentage' => 1.0,
				'title'      => __('Enable Real-Time IP Blocklist.', 'wordfence'),
			);
		}
		catch (Exception $e) {
			//Ignore, return 0%
		}
			
		return array(
			'percentage' => 1.0,
			'title'      => __('Enable Real-Time IP Blocklist.', 'wordfence'),
		);
	}

	/**
	 * Returns the blacklist mode.
	 *
	 * @return string
	 */
	public function blacklistMode() {
		$blacklistEnabled = false;
		try {
			$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());
			$blacklistEnabled = $wafEnabled && !wfWAF::getInstance()->getStorageEngine()->getConfig('disableWAFBlacklistBlocking');
		}
		catch (Exception $e) {
			//Do nothing
		}
		
		if (wfConfig::get('isPaid') && $blacklistEnabled) {
			return self::BLACKLIST_MODE_ENABLED;
		}
		return self::BLACKLIST_MODE_DISABLED;
	}
	
	/**
	 * Returns a percentage rating for the brute force protection status. This includes both the WFSN enabled status
	 * and the status of individual login security options. These options are available to all, so they are always
	 * in the range [0,1].
	 * 
	 * @return float
	 */
	public function bruteForceStatus() {
		$networkBruteForceEnabled = !!wfConfig::get('other_WFNet');
		$localBruteForceEnabled = !!wfConfig::get('loginSecurityEnabled');
		
		$percentage = 0.0;

		if ($localBruteForceEnabled) {
			$percentage += 0.1;

			if ($networkBruteForceEnabled) {
				$percentage += 0.5;
			}
			if (wfConfig::get('loginSec_strongPasswds_enabled') && (wfConfig::get('loginSec_strongPasswds') == 'pubs' || wfConfig::get('loginSec_strongPasswds') == 'all')) {
				$percentage += 0.1;
			}
			if (wfConfig::get('loginSec_maskLoginErrors')) {
				$percentage += 0.1;
			}
			if (wfConfig::get('loginSec_blockAdminReg')) {
				$percentage += 0.1;
			}
			if (wfConfig::get('loginSec_disableAuthorScan')) {
				$percentage += 0.1;
			}
		}
		
		return round($percentage, 2);
	}
	
	/**
	 * Returns the status of the WAF's learning mode.
	 * 
	 * @return bool|int Returns true if enabled without an automatic switchover, a timestamp if enabled with one, and false if not in learning mode.
	 */
	public function learningModeStatus() {
		if ($this->firewallMode() != self::FIREWALL_MODE_LEARNING) {
			return false;
		}
		
		try {
			$config = wfWAF::getInstance()->getStorageEngine();
			if ($config->getConfig('learningModeGracePeriodEnabled')) {
				return (int) $config->getConfig('learningModeGracePeriod');
			}
			
			return true;
		}
		catch (Exception $e) {
			//Ignore, return false
		}
		
		return false;
	}

	/**
	 * @return array
	 */
	public function bruteForceStatusList() {
		$networkBruteForceEnabled = !!wfConfig::get('other_WFNet');
		$localBruteForceEnabled = !!wfConfig::get('loginSecurityEnabled');

		$status = array();

		if ($localBruteForceEnabled) {
			if (!$networkBruteForceEnabled) {
				$status[] = array(
					'percentage' => 0.5,
					'title' => __('Enable Real-Time Wordfence Security Network.', 'wordfence'),
				);
			}
			if (!wfConfig::get('loginSec_strongPasswds_enabled')) {
				$status[] = array(
					'percentage' => 0.1,
					'title' => __('Enforce Strong Passwords.', 'wordfence'),
				);
			}
			if (!wfConfig::get('loginSec_maskLoginErrors')) {
				$status[] = array(
					'percentage' => 0.1,
					'title' => __('Enable Mask Login Errors.', 'wordfence'),
				);
			}
			if (!wfConfig::get('loginSec_blockAdminReg')) {
				$status[] = array(
					'percentage' => 0.1,
					'title' => __('Enable Block Admin Registration.', 'wordfence'),
				);
			}
			if (!wfConfig::get('loginSec_disableAuthorScan')) {
				$status[] = array(
					'percentage' => 0.1,
					'title' => __('Disable Author Scanning.', 'wordfence'),
				);
			}
		} else {
			$status[] = array(
				'percentage' => 1.0,
				'title' => __('Enable Brute Force Protection.', 'wordfence'),
			);
		}

		return array_filter($status);
	}
}
PK       ! ��w�?  ?    block/wfBlock.phpnu �[���        <?php

/**
 * Represents an individual block definition.
 * 
 * @property int $id
 * @property int $type One of the TYPE_* constants.
 * @property string $ip The human-readable version of the IP if applicable for the block type.
 * @property int $blockedTime The timestamp the block was created.
 * @property string $reason Description of the block.
 * @property int $lastAttempt Timestamp of the last request blocked. If never, this will be 0.
 * @property int $blockedHits Count of the number of hits blocked.
 * @property int $expiration Timestamp when the block will expire. If never, this will be 0.
 * @property mixed $parameters Variable parameters defining the block (e.g., the matchers for a pattern block).
 * 
 * @property bool $blockLogin For wfBlock::TYPE_COUNTRY only, this is whether or not to block hits to the login page.
 * @property bool $blockSite For wfBlock::TYPE_COUNTRY only, this is whether or not to block hits to the rest of the site.
 * @property array $countries For wfBlock::TYPE_COUNTRY only, this is the list of countries to block.
 * 
 * @property mixed $ipRange For wfBlock::TYPE_PATTERN only, this is the matching IP range if set.
 * @property mixed $hostname For wfBlock::TYPE_PATTERN only, this is the hostname pattern if set.
 * @property mixed $userAgent For wfBlock::TYPE_PATTERN only, this is the user agent pattern if set.
 * @property mixed $referrer For wfBlock::TYPE_PATTERN only, this is the HTTP referrer pattern if set.
 */
class wfBlock {
	//Constants for block record types
	const TYPE_IP_MANUAL = 1; //Same behavior as TYPE_IP_AUTOMATIC_PERMANENT - the reason will be overridden for public display
	const TYPE_WFSN_TEMPORARY = 2;
	const TYPE_COUNTRY = 3;
	const TYPE_PATTERN = 4;
	const TYPE_RATE_BLOCK = 5;
	const TYPE_RATE_THROTTLE = 6;
	const TYPE_LOCKOUT = 7; //Blocks login-related actions only
	const TYPE_IP_AUTOMATIC_TEMPORARY = 8; //Automatic block, still temporary
	const TYPE_IP_AUTOMATIC_PERMANENT = 9; //Automatic block, started as temporary but now permanent as a result of admin action
	
	//Constants to identify the match type of a block record
	const MATCH_NONE = 0;
	const MATCH_IP = 1;
	const MATCH_COUNTRY_BLOCK = 2;
	const MATCH_COUNTRY_REDIR = 3;
	const MATCH_COUNTRY_REDIR_BYPASS = 4;
	const MATCH_PATTERN = 5;
	
	//Duration constants
	const DURATION_FOREVER = 0;
	
	//Constants defining the placeholder IPs for non-IP block records
	const MARKER_COUNTRY = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xc0\x00\x02\x01";// 192.0.2.1 TEST-NET-1
	const MARKER_PATTERN = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xc0\x00\x02\x02";// 192.0.2.2 TEST-NET-1
	
	private $_id;
	private $_type = false;
	private $_ip = false;
	private $_blockedTime = false;
	private $_reason = false;
	private $_lastAttempt = false;
	private $_blockedHits = false;
	private $_expiration = false;
	private $_parameters = false;
	
	/**
	 * Returns the name of the storage table for the blocks.
	 * 
	 * @return string
	 */
	public static function blocksTable() {
		return wfDB::networkTable('wfBlocks7');
	}
	
	/**
	 * Returns a user-displayable name for the corresponding type constant.
	 * 
	 * @param int $type
	 * @return string
	 */
	public static function nameForType($type) {
		switch ($type) {
			case self::TYPE_IP_MANUAL:
			case self::TYPE_IP_AUTOMATIC_TEMPORARY:
			case self::TYPE_IP_AUTOMATIC_PERMANENT:
			case self::TYPE_WFSN_TEMPORARY:
			case self::TYPE_RATE_BLOCK:
				return __('IP Block', 'wordfence');
			case self::TYPE_RATE_THROTTLE:
				return __('IP Throttled', 'wordfence');
			case self::TYPE_LOCKOUT:
				return __('Lockout', 'wordfence');
			case self::TYPE_COUNTRY:
				return __('Country Block', 'wordfence');
			case self::TYPE_PATTERN:
				return __('Advanced Block', 'wordfence');
		}
		
		return __('Unknown', 'wordfence');
	}
	
	/**
	 * Returns the number of seconds for a temporary block to last by default.
	 * 
	 * @return int
	 */
	public static function blockDuration() {
		return (int) wfConfig::get('blockedTime');
	}
	
	/**
	 * Returns the number of seconds for a rate limit throttle to last by default.
	 *
	 * @return int
	 */
	public static function rateLimitThrottleDuration() {
		return 60;
	}
	
	/**
	 * Returns the number of seconds for a lockout to last by default.
	 *
	 * @return int
	 */
	public static function lockoutDuration() {
		return (int) wfConfig::get('loginSec_lockoutMins') * 60;
	}
	
	/**
	 * @param string $IP Should be in dot or colon notation (127.0.0.1 or ::1)
	 * @param bool $forcedWhitelistEntry If provided, returns whether or not the IP is on a forced whitelist (i.e., it's not one the user can delete).
	 * @return bool
	 */
	public static function isWhitelisted($IP, &$forcedWhitelistEntry = null) {
		if ($forcedWhitelistEntry !== null) {
			$forcedWhitelistEntry = false;
		}
		
		if (
			(defined('DOING_CRON') && DOING_CRON) || //Safe
			(defined('WORDFENCE_SYNCING_ATTACK_DATA') && WORDFENCE_SYNCING_ATTACK_DATA) //Safe as long as it will actually run since it then exits
		) {
			$serverIPs = wfUtils::serverIPs();
			foreach ($serverIPs as $testIP) {
				if (wfUtils::inet_pton($IP) == wfUtils::inet_pton($testIP)) {
					if ($forcedWhitelistEntry !== null) {
						$forcedWhitelistEntry = true;
					}
					
					return true;
				}
			}
		}
		
		foreach (wfUtils::getIPWhitelist() as $subnet) {
			if ($subnet instanceof wfUserIPRange) {
				if ($subnet->isIPInRange($IP)) {
					return true;
				}
			} elseif (wfUtils::subnetContainsIP($subnet, $IP)) {
				if ($forcedWhitelistEntry !== null) {
					$forcedWhitelistEntry = true;
				}
				return true;
			}
		}
		
		return false;
	}
	
	/**
	 * Validates the payload for block creation. Returns true if valid, otherwise it'll return the first error found.
	 * 
	 * @param $payload
	 * @return bool|string
	 */
	public static function validate($payload) {
		if (!isset($payload['type']) || array_search($payload['type'], array('ip-address', 'country', 'custom-pattern')) === false) { return __('Invalid block type.', 'wordfence'); }
		if (!isset($payload['duration']) || intval($payload['duration']) < 0) { return __('Invalid block duration.', 'wordfence'); }
		if (!isset($payload['reason']) || empty($payload['reason'])) { return __('A block reason must be provided.', 'wordfence'); }
		
		if ($payload['type'] == 'ip-address') {
			if (!isset($payload['ip']) || !filter_var(trim($payload['ip']), FILTER_VALIDATE_IP) || @wfUtils::inet_pton(trim($payload['ip'])) === false) { return __('Invalid IP address.', 'wordfence'); }
			if (self::isWhitelisted(trim($payload['ip']))) { return wp_kses(sprintf(/* translators: Support URL */ __('This IP address is in a range of addresses that Wordfence does not block. The IP range may be internal or belong to a service that is always allowed. Allowlisting of external services can be disabled. <a href="%s" target="_blank" rel="noopener noreferrer">Learn More<span class="screen-reader-text"> (opens in new tab)</span></a>', 'wordfence'), wfSupportController::supportURL(wfSupportController::ITEM_FIREWALL_WAF_OPTION_WHITELISTED_SERVICES)), array('a'=>array('href'=>array(), 'target'=>array(), 'rel'=>array()), 'span'=>array('class'=>array()))); }
		}
		else if ($payload['type'] == 'country') {
			if (!isset($payload['blockLogin']) || !isset($payload['blockSite'])) { return __('Nothing selected to block.', 'wordfence'); }
			if (!$payload['blockLogin'] && !$payload['blockSite']) { return __('Nothing selected to block.', 'wordfence'); }
			if (!isset($payload['countries']) || empty($payload['countries']) || !is_array($payload['countries'])) { return __('No countries selected.', 'wordfence'); }
			
			require(WORDFENCE_PATH . 'lib/wfBulkCountries.php'); /** @var array $wfBulkCountries */
			foreach ($payload['countries'] as $code) {
				if (!isset($wfBulkCountries[$code])) {
					return __('An invalid country was selected.', 'wordfence');
				}
			}
		}
		else if ($payload['type'] == 'custom-pattern') {
			$hasOne = false;
			if (isset($payload['ipRange']) && !empty($payload['ipRange'])) {
				$ipRange = new wfUserIPRange($payload['ipRange']);
				if ($ipRange->isValidRange()) {
					if ($ipRange->isMixedRange()) {
						return __('Ranges mixing IPv4 and IPv6 addresses are not supported.', 'wordfence');
					}
					
					$hasOne = true;
				}
				else {
					return __('Invalid IP range.', 'wordfence');
				}
			}
			if (isset($payload['hostname']) && !empty($payload['hostname'])) {
				if (preg_match('/^[a-z0-9\.\*\-]+$/i', $payload['hostname'])) {
					$hasOne = true;
				}
				else {
					return __('Invalid hostname.', 'wordfence');
				}
			}
			if (isset($payload['userAgent']) && !empty($payload['userAgent'])) { $hasOne = true; }
			if (isset($payload['referrer']) && !empty($payload['referrer'])) { $hasOne = true; }
			if (!$hasOne) { return __('No block parameters provided.', 'wordfence'); }
		}
		
		return true;
	}
	
	/**
	 * Creates the block. The $payload value is expected to have been validated prior to calling this.
	 * 
	 * @param $payload
	 */
	public static function create($payload) {
		$type = $payload['type'];
		$duration = max((int) $payload['duration'], 0);
		$reason = $payload['reason'];
		
		if ($type == 'ip-address') {
			$ip = trim($payload['ip']);
			wfBlock::createIP($reason, $ip, $duration);
		}
		else if ($type == 'country') {
			$blockLogin = !!$payload['blockLogin'];
			$blockSite = !!$payload['blockSite'];
			$countries = array_unique($payload['countries']);
			wfBlock::createCountry($reason, $blockLogin, $blockSite, $countries, $duration);
		}
		else if ($type == 'custom-pattern') {
			$ipRange = '';
			if (isset($payload['ipRange']) && !empty($payload['ipRange'])) {
				$ipRange = new wfUserIPRange($payload['ipRange']);
				$ipRange = $ipRange->getIPString();
			}
			$hostname = (isset($payload['hostname']) && !empty($payload['hostname'])) ? $payload['hostname'] : '';
			$userAgent = (isset($payload['userAgent']) && !empty($payload['userAgent'])) ? $payload['userAgent'] : '';
			$referrer = (isset($payload['referrer']) && !empty($payload['referrer'])) ? $payload['referrer'] : '';
			wfBlock::createPattern($reason, $ipRange, $hostname, $userAgent, $referrer, $duration);
		}
	}
	
	/**
	 * Creates an IP block if one doesn't already exist for the given IP. The parameters are expected to have been validated and sanitized prior to calling this.
	 * 
	 * @param string $reason
	 * @param string $ip
	 * @param int $duration Optional. Defaults to forever. This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createIP($reason, $ip, $duration = self::DURATION_FOREVER, $blockedTime = false, $lastAttempt = false, $blockedHits = false, $type = self::TYPE_IP_MANUAL) {
		global $wpdb;
		
		if (self::isWhitelisted($ip)) { return; }
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$blocksTable = wfBlock::blocksTable();
		$hasExisting = $wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `expiration` = %d WHERE `expiration` > UNIX_TIMESTAMP() AND `type` = %d AND `IP` = {$ipHex}", $reason, ($duration ? $blockedTime + $duration : $duration), $type));
		if (!$hasExisting) {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", $type, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration)));
			
			wfConfig::inc('totalIPsBlocked');
		}
		
		if ($type == self::TYPE_IP_MANUAL || $type == self::TYPE_IP_AUTOMATIC_PERMANENT) {
			/**
			 * Fires when an IP/Pattern block is created.
			 *
			 * @since 8.0.0
			 *
			 * @param string $type The type of block.
			 * @param string $reason The reason for the block.
			 * @param string|array $parameters The IP address being blocked for IP blocks or the pattern for pattern blocks.
			 */
			do_action('wordfence_created_ip_pattern_block', $type, $reason, $ip);
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates an IP block for a WFSN response if one doesn't already exist for the given IP. The parameters are expected to have been validated and sanitized prior to calling this.
	 *
	 * @param string $reason
	 * @param string $ip
	 * @param int $duration This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createWFSN($reason, $ip, $duration, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if (self::isWhitelisted($ip)) { return; }
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$blocksTable = wfBlock::blocksTable();
		$hasExisting = $wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `expiration` = %d WHERE `expiration` > UNIX_TIMESTAMP() AND `type` = %d AND `IP` = {$ipHex}", $reason, ($duration ? $blockedTime + $duration : $duration), self::TYPE_WFSN_TEMPORARY));
		if (!$hasExisting) {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", self::TYPE_WFSN_TEMPORARY, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration)));
			
			wfConfig::inc('totalIPsBlocked');
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates an IP block for a rate limit if one doesn't already exist for the given IP. The parameters are expected to have been validated and sanitized prior to calling this.
	 *
	 * @param string $reason
	 * @param string $ip
	 * @param int $duration This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createRateBlock($reason, $ip, $duration, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if (self::isWhitelisted($ip)) { return; }
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$blocksTable = wfBlock::blocksTable();
		$hasExisting = $wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `expiration` = %d WHERE `expiration` > UNIX_TIMESTAMP() AND `type` = %d AND `IP` = {$ipHex}", $reason, ($duration ? $blockedTime + $duration : $duration), self::TYPE_RATE_BLOCK));
		if (!$hasExisting) {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", self::TYPE_RATE_BLOCK, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration)));
			
			wfConfig::inc('totalIPsBlocked');
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates an IP throttle for a rate limit if one doesn't already exist for the given IP. The parameters are expected to have been validated and sanitized prior to calling this.
	 *
	 * @param string $reason
	 * @param string $ip
	 * @param int $duration This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createRateThrottle($reason, $ip, $duration, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if (self::isWhitelisted($ip)) { return; }
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$blocksTable = wfBlock::blocksTable();
		$hasExisting = $wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `expiration` = %d WHERE `expiration` > UNIX_TIMESTAMP() AND `type` = %d AND `IP` = {$ipHex}", $reason, ($duration ? $blockedTime + $duration : $duration), self::TYPE_RATE_THROTTLE));
		if (!$hasExisting) {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", self::TYPE_RATE_THROTTLE, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration)));
			
			wfConfig::inc('totalIPsBlocked');
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates a lockout if one doesn't already exist for the given IP. The parameters are expected to have been validated and sanitized prior to calling this.
	 *
	 * @param string $reason
	 * @param string $ip
	 * @param int $duration This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createLockout($reason, $ip, $duration, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if (self::isWhitelisted($ip)) { return; }
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$blocksTable = wfBlock::blocksTable();
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$hasExisting = $wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `expiration` = %d WHERE `expiration` > UNIX_TIMESTAMP() AND `type` = %d AND `IP` = {$ipHex}", $reason, ($duration ? $blockedTime + $duration : $duration), self::TYPE_LOCKOUT));
		if (!$hasExisting) {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", self::TYPE_LOCKOUT, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration)));
			
			wfConfig::inc('totalIPsLocked');
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates a country block. The parameters are expected to have been validated and sanitized prior to calling this.
	 *
	 * @param string $reason
	 * @param string $blockLogin
	 * @param string $blockSite
	 * @param string $countries
	 * @param int $duration Optional. Defaults to forever. This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createCountry($reason, $blockLogin, $blockSite, $countries, $duration = self::DURATION_FOREVER, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$parameters = array(
			'blockLogin' => $blockLogin ? 1 : 0,
			'blockSite' => $blockSite ? 1 : 0,
			'countries' => $countries,
		);
		
		$blocksTable = wfBlock::blocksTable();
		$existing = $wpdb->get_row($wpdb->prepare("SELECT * FROM `{$blocksTable}` WHERE `type` = %d LIMIT 1", self::TYPE_COUNTRY), ARRAY_A);
		$before = array(
			'parameters' => null,
			'bypass' => array(
				'cbl_loggedInBlocked' => wfConfig::get('cbl_loggedInBlocked', false),
				'cbl_action' => wfConfig::get('cbl_action'),
				'cbl_redirURL' => wfConfig::get('cbl_redirURL', ''),
				'cbl_bypassRedirURL' => wfConfig::get('cbl_bypassRedirURL', ''),
				'cbl_bypassRedirDest' => wfConfig::get('cbl_bypassRedirDest', ''),
				'cbl_bypassViewURL' => wfConfig::get('cbl_bypassViewURL', ''),
			),
		);
		$after = $before;
		$after['parameters'] = $parameters;
		if ($existing) {
			$before['parameters'] = @json_decode($existing['parameters'], true);
			$wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `reason` = %s, `parameters` = %s WHERE `id` = %d", $reason, json_encode($parameters), $existing['id']));
		}
		else {
			$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, %s, %d, %s, %d, %d, %d, %s)", self::TYPE_COUNTRY, self::MARKER_COUNTRY, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration), json_encode($parameters)));
		}
		
		/**
		 * Fires when the country blocking rule is updated.
		 *
		 * @since 8.0.0
		 *
		 * @param array $before {
		 * 		The country block configuration before the change
		 * 
		 * 		@type array $parameters The parameters of the country block.
		 * 		@type array $bypass {
		 * 			The assorted bypass settings for country blocking.
		 * 
		 * 			@type bool $cbl_loggedInBlocked Block countries even if there is a valid logged-in user for the request
		 * 			@type string $cbl_action Action taken when a request is received from a blocked country
		 * 			@type string $cbl_redirURL URL destination when $cbl_action is `redir`
		 * 			@type string $cbl_bypassRedirURL If a visitor hits this URL
		 * 			@type string $cbl_bypassRedirDest then redirect to this URL and set a cookie that will bypass all country blocking
		 * 			@type string $cbl_bypassViewURL If a user currently not blocked hits this URL, then set a cookie that will bypass country blocking in the future even if visiting from a blocked country
		 * 		}
		 * }
		 * @param array $after The country block configuration after the change, same structure as $before
		 */
		do_action('wordfence_updated_country_blocking', $before, $after);
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Creates a pattern block. The parameters are expected to have been validated and sanitized prior to calling this.
	 * 
	 * @param string $reason
	 * @param string $ipRange
	 * @param string $hostname
	 * @param string $userAgent
	 * @param string $referrer
	 * @param int $duration Optional. Defaults to forever. This is the number of seconds for the block to last.
	 * @param bool|int $blockedTime Optional. Defaults to the current timestamp.
	 * @param bool|int $lastAttempt Optional. Defaults to 0, which means never.
	 * @param bool|int $blockedHits Optional. Defaults to 0.
	 */
	public static function createPattern($reason, $ipRange, $hostname, $userAgent, $referrer, $duration = self::DURATION_FOREVER, $blockedTime = false, $lastAttempt = false, $blockedHits = false) {
		global $wpdb;
		
		if ($blockedTime === false) {
			$blockedTime = time();
		}
		
		$parameters = array(
			'ipRange' => $ipRange,
			'hostname' => $hostname,
			'userAgent' => $userAgent,
			'referrer' => $referrer,
		);
		
		$blocksTable = wfBlock::blocksTable();
		$wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, %s, %d, %s, %d, %d, %d, %s)", self::TYPE_PATTERN, self::MARKER_PATTERN, $blockedTime, $reason, (int) $lastAttempt, (int) $blockedHits, ($duration ? $blockedTime + $duration : $duration), json_encode($parameters)));
		
		/**
		 * @see wfBlock::createIP()
		 */
		do_action('wordfence_created_ip_pattern_block', self::TYPE_PATTERN, $reason, $parameters);
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Removes all expired blocks.
	 */
	public static function vacuum() {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$wpdb->query("DELETE FROM `{$blocksTable}` WHERE `expiration` <= UNIX_TIMESTAMP() AND `expiration` != " . self::DURATION_FOREVER);
	}
	
	/**
	 * Imports all valid blocks in $blocks. If $replaceExisting is true, this will remove all permanent blocks prior to the import.
	 * 
	 * @param array $blocks
	 * @param bool $replaceExisting
	 */
	public static function importBlocks($blocks, $replaceExisting = true) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		
		if ($replaceExisting) {
			$removing = self::_recordsFromRows($wpdb->get_results("SELECT * FROM `{$blocksTable}` WHERE `expiration` = " . self::DURATION_FOREVER, ARRAY_A));
			self::removeMultiple($removing, true);
		}
		
		foreach ($blocks as $b) {
			self::_importBlock($b);
		}
		
		if (!WFWAF_SUBDIRECTORY_INSTALL && class_exists('wfWAFIPBlocksController')) {
			wfWAFIPBlocksController::setNeedsSynchronizeConfigSettings();
		}
	}
	
	/**
	 * Validates the block import record and inserts it if valid. This validation is identical to what is applied to adding one through the UI.
	 * 
	 * @param array $b
	 * @return bool
	 */
	private static function _importBlock($b) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		
		if (!isset($b['type']) || !isset($b['IP']) || !isset($b['blockedTime']) || !isset($b['reason']) || !isset($b['lastAttempt']) || !isset($b['blockedHits'])) { return false; }
		if (empty($b['IP']) || empty($b['reason'])) { return false; }
		
		$ip = @wfUtils::inet_ntop(wfUtils::hex2bin($b['IP']));
		if (!wfUtils::isValidIP($ip)) { return false; }
		
		switch ($b['type']) {
			case self::TYPE_IP_MANUAL:
			case self::TYPE_IP_AUTOMATIC_TEMPORARY:
			case self::TYPE_IP_AUTOMATIC_PERMANENT:
			case self::TYPE_WFSN_TEMPORARY:
			case self::TYPE_RATE_BLOCK:
			case self::TYPE_RATE_THROTTLE:
			case self::TYPE_LOCKOUT:
				if (self::isWhitelisted($ip)) { return false; }

				if ($b['type'] == self::TYPE_IP_MANUAL || $b['type'] == self::TYPE_IP_AUTOMATIC_PERMANENT) {
					/**
					 * @see wfBlock::createIP()
					 */
					do_action('wordfence_created_ip_pattern_block', $b['type'], $b['reason'], $ip);
				}
			
				$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
				return $wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, NULL)", (int) $b['type'], (int) $b['blockedTime'], $b['reason'], (int) $b['lastAttempt'], (int) $b['blockedHits'], self::DURATION_FOREVER)) !== false;
			case self::TYPE_COUNTRY:
				if (!isset($b['parameters'])) { return false; }
				if (wfUtils::inet_pton($ip) != self::MARKER_COUNTRY) { return false; }
				$parameters = @json_decode($b['parameters'], true);
				if (!isset($parameters['blockLogin']) || !isset($parameters['blockSite']) || !isset($parameters['countries'])) { return false; }
				$parameters['blockLogin'] = wfUtils::truthyToInt($parameters['blockLogin']);
				$parameters['blockSite'] = wfUtils::truthyToInt($parameters['blockSite']);
				
				require(WORDFENCE_PATH . 'lib/wfBulkCountries.php'); /** @var array $wfBulkCountries */
				foreach ($parameters['countries'] as $code) {
					if (!isset($wfBulkCountries[$code])) {
						return false;
					}
				}
				
				$parameters = array('blockLogin' => $parameters['blockLogin'], 'blockSite' => $parameters['blockSite'], 'countries' => $parameters['countries']);
			
				$before = array(
					'parameters' => null,
					'bypass' => array(
						'cbl_loggedInBlocked' => wfConfig::get('cbl_loggedInBlocked', false),
						'cbl_action' => wfConfig::get('cbl_action'),
						'cbl_redirURL' => wfConfig::get('cbl_redirURL', ''),
						'cbl_bypassRedirURL' => wfConfig::get('cbl_bypassRedirURL', ''),
						'cbl_bypassRedirDest' => wfConfig::get('cbl_bypassRedirDest', ''),
						'cbl_bypassViewURL' => wfConfig::get('cbl_bypassViewURL', ''),
					),
				);
				$after = $before;
				$after['parameters'] = $parameters;
				
				/**
				 * @see wfBlock::createCountry()
				 */
				do_action('wordfence_updated_country_blocking', $before, $after);
				
				$ipHex = wfDB::binaryValueToSQLHex(self::MARKER_COUNTRY);
				return $wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, %s)", self::TYPE_COUNTRY, (int) $b['blockedTime'], $b['reason'], (int) $b['lastAttempt'], (int) $b['blockedHits'], self::DURATION_FOREVER, json_encode($parameters))) !== false;
			case self::TYPE_PATTERN:
				if (!isset($b['parameters'])) { return false; }
				if (wfUtils::inet_pton($ip) != self::MARKER_PATTERN) { return false; }
				$parameters = @json_decode($b['parameters'], true);
				if (!isset($parameters['ipRange']) || !isset($parameters['hostname']) || !isset($parameters['userAgent']) || !isset($parameters['referrer'])) { return false; }
				
				$hasOne = false;
				if (!empty($parameters['ipRange'])) {
					$ipRange = new wfUserIPRange($parameters['ipRange']);
					if ($ipRange->isValidRange()) {
						if ($ipRange->isMixedRange()) {
							return false;
						}
						
						$hasOne = true;
					}
					else {
						return false;
					}
				}
				if (!empty($parameters['hostname'])) {
					if (preg_match('/^[a-z0-9\.\*\-]+$/i', $parameters['hostname'])) {
						$hasOne = true;
					}
					else {
						return false;
					}
				}
				if (!empty($parameters['userAgent'])) { $hasOne = true; }
				if (!empty($parameters['referrer'])) { $hasOne = true; }
				if (!$hasOne) { return false; }
				
				$ipRange = '';
				if (!empty($parameters['ipRange'])) {
					$ipRange = new wfUserIPRange($parameters['ipRange']);
					$ipRange = $ipRange->getIPString();
				}
				$parameters = array(
					'ipRange' => $ipRange,
					'hostname' => $parameters['hostname'],
					'userAgent' => $parameters['userAgent'],
					'referrer' => $parameters['referrer'],
				);
				
				/**
				 * @see wfBlock::createIP()
				 */
				do_action('wordfence_created_ip_pattern_block', $b['type'], $b['reason'], $parameters);
				
				$ipHex = wfDB::binaryValueToSQLHex(self::MARKER_PATTERN);
				return $wpdb->query($wpdb->prepare("INSERT INTO `{$blocksTable}` (`type`, `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `expiration`, `parameters`) VALUES (%d, {$ipHex}, %d, %s, %d, %d, %d, %s)", self::TYPE_PATTERN, (int) $b['blockedTime'], $b['reason'], (int) $b['lastAttempt'], (int) $b['blockedHits'], self::DURATION_FOREVER, json_encode($parameters))) !== false;
		}
		
		return false;
	}
	
	/**
	 * Returns an array suitable for JSON output of all permanent blocks.
	 * 
	 * @return array
	 */
	public static function exportBlocks() {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$query = "SELECT `type`, HEX(`IP`) AS `IP`, `blockedTime`, `reason`, `lastAttempt`, `blockedHits`, `parameters` FROM `{$blocksTable}` WHERE `expiration` = " . self::DURATION_FOREVER;
		$rows = $wpdb->get_results($query, ARRAY_A);
		return $rows;
	}
	
	/**
	 * Returns all unexpired blocks (including lockouts by default), optionally only of the specified types. These are sorted descending by the time created.
	 * 
	 * @param bool $prefetch If true, the full data for the block is fetched rather than using lazy loading.
	 * @param array $ofTypes An optional array of block types to restrict the returned array of blocks to.
	 * @param int $offset The offset to start the result fetch at.
	 * @param int $limit The maximum number of results to return. -1 for all.
	 * @param string $sortColumn The column to sort by.
	 * @param string $sortDirection The direction to sort.
	 * @param string $filter An optional value to filter by.
	 * @return wfBlock[]
	 */
	public static function allBlocks($prefetch = false, $ofTypes = array(), $offset = 0, $limit = -1, $sortColumn = 'type', $sortDirection = 'ascending', $filter = '') {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$columns = '`id`';
		if ($prefetch) {
			$columns = '*';
		}
		
		$sort = 'typeSort';
		switch ($sortColumn) { //Match the display table column to the corresponding schema column
			case 'type':
				//Use default;
				break;
			case 'detail':
				$sort = 'detailSort';
				break;
			case 'ruleAdded':
				$sort = 'blockedTime';
				break;
			case 'reason':
				$sort = 'reason';
				break;
			case 'expiration':
				$sort = 'expiration';
				break;
			case 'blockCount':
				$sort = 'blockedHits';
				break;
			case 'lastAttempt':
				$sort = 'lastAttempt';
				break;
		}
		
		$order = 'ASC';
		if ($sortDirection == 'descending') {
			$order = 'DESC';
		}
		
		$query = "SELECT {$columns}, CASE 
WHEN `type` = " . self::TYPE_COUNTRY . " THEN 0
WHEN `type` = " . self::TYPE_PATTERN . " THEN 1
WHEN `type` = " . self::TYPE_LOCKOUT . " THEN 2
WHEN `type` = " . self::TYPE_RATE_THROTTLE . " THEN 3
WHEN `type` = " . self::TYPE_RATE_BLOCK . " THEN 4
WHEN `type` = " . self::TYPE_IP_AUTOMATIC_PERMANENT . " THEN 5
WHEN `type` = " . self::TYPE_IP_AUTOMATIC_TEMPORARY . " THEN 6
WHEN `type` = " . self::TYPE_WFSN_TEMPORARY . " THEN 7
WHEN `type` = " . self::TYPE_IP_MANUAL . " THEN 8
ELSE 9999
END AS `typeSort`, CASE 
WHEN `type` = " . self::TYPE_COUNTRY . " THEN `parameters`
WHEN `type` = " . self::TYPE_PATTERN . " THEN `parameters`
WHEN `type` = " . self::TYPE_IP_MANUAL . " THEN `IP`
WHEN `type` = " . self::TYPE_IP_AUTOMATIC_PERMANENT . " THEN `IP`
WHEN `type` = " . self::TYPE_RATE_BLOCK . " THEN `IP`
WHEN `type` = " . self::TYPE_RATE_THROTTLE . " THEN `IP`
WHEN `type` = " . self::TYPE_LOCKOUT . " THEN `IP`
WHEN `type` = " . self::TYPE_WFSN_TEMPORARY . " THEN `IP`
WHEN `type` = " . self::TYPE_IP_AUTOMATIC_TEMPORARY . " THEN `IP`
ELSE 9999
END AS `detailSort`
 FROM `{$blocksTable}` WHERE ";
		if (!empty($ofTypes)) {
			$sanitizedTypes = array_map('intval', $ofTypes);
			$query .= "`type` IN (" . implode(', ', $sanitizedTypes) . ') AND ';
		}
		$query .= '(`expiration` = ' . self::DURATION_FOREVER . " OR `expiration` > UNIX_TIMESTAMP()) ORDER BY `{$sort}` {$order}, `id` DESC";
		
		if ($limit > -1) {
			$offset = (int) $offset;
			$limit = (int) $limit;
			$query .= " LIMIT {$offset},{$limit}";
		}
		
		$rows = $wpdb->get_results($query, ARRAY_A);
		$result = array();
		foreach ($rows as $r) {
			if ($prefetch) {
				if ($r['type'] == self::TYPE_COUNTRY || $r['type'] == self::TYPE_PATTERN) {
					$ip = null;
				}
				else {
					$ip = wfUtils::inet_ntop($r['IP']);
				}
				
				$parameters = null;
				if ($r['type'] == self::TYPE_PATTERN || $r['type'] == self::TYPE_COUNTRY) {
					$parameters = @json_decode($r['parameters'], true);
				}
				
				$result[] = new wfBlock($r['id'], $r['type'], $ip, $r['blockedTime'], $r['reason'], $r['lastAttempt'], $r['blockedHits'], $r['expiration'], $parameters);
			}
			else {
				$result[] = new wfBlock($r['id']);
			}
		}
		
		return $result;
	}
	
	/**
	 * Functions identically to wfBlock::allBlocks except that it filters the result. The filtering is done within PHP rather than MySQL, so this will impose a performance penalty and should only
	 * be used when filtering is actually wanted.
	 * 
	 * @param bool $prefetch
	 * @param array $ofTypes
	 * @param int $offset
	 * @param int $limit
	 * @param string $sortColumn
	 * @param string $sortDirection
	 * @param string $filter
	 * @return wfBlock[]
	 */
	public static function filteredBlocks($prefetch = false, $ofTypes = array(), $offset = 0, $limit = -1, $sortColumn = 'type', $sortDirection = 'ascending', $filter = '') {
		$filter = trim($filter);
		$matchType = '';
		$matchValue = '';
		if (empty($filter)) {
			return self::allBlocks($prefetch, $ofTypes, $offset, $limit, $sortColumn, $sortDirection);
		}
		else if (wfUtils::isValidIP($filter)) { //e.g., 4.5.6.7, ffe0::, ::0
			$matchType = 'ip';
			$matchValue = wfUtils::inet_ntop(wfUtils::inet_pton($filter));
		}
		
		if (empty($matchType) && preg_match('/^(?:[0-9]+|\*)\.(?:(?:[0-9]+|\*)\.(?!$))*(?:(?:[0-9]+|\*))?$/', trim($filter, '.'))) { //e.g., possible wildcard IPv4 like 4.5.*
			$components = explode('.', trim($filter, '.'));
			if (count($components) <= 4) {
				$components = array_pad($components, 4, '*');
				$matchType = 'ipregex';
				$matchValue = '^';
				foreach ($components as $c) {
					if (empty($c) || $c == '*') {
						$matchValue .= '\d+';
					}
					else {
						$matchValue .= (int) $c;
					}
					
					$matchValue .= '\.';
				}
				$matchValue = substr($matchValue, 0, -2);
				$matchValue .= '$';
			}
		}
		
		if (empty($matchType) && preg_match('/^(?:[0-9a-f]+\:)(?:[0-9a-f]+\:|\*){1,2}(?:[0-9a-f]+|\*)?$/i', $filter)) { //e.g., possible wildcard IPv6 like ffe0:*
			$components = explode(':', $filter);
			$matchType = 'ipregex';
			$matchValue = '^';
			for ($i = 0; $i < 4; $i++) {
				if (isset($components[$i])) {
					$matchValue .= strtoupper(str_pad(dechex($components[$i]), 4, '0', STR_PAD_LEFT));
				}
				else {
					$matchValue .= '[0-9a-f]{4}';
				}
				$matchValue .= ':';
			}
			$matchValue = substr($matchValue, 0, -1);
			$matchValue .= '$';
		}
		
		if (empty($matchType)) {
			$matchType = 'literal';
			$matchValue = $filter;
		}
		
		$offsetProcessed = 0;
		$limitProcessed = 0;
		
		$returnBlocks = array();
		for ($i = 0; true; $i += WORDFENCE_BLOCKED_IPS_PER_PAGE) {
			$blocks = wfBlock::allBlocks(true, $ofTypes, $i, WORDFENCE_BLOCKED_IPS_PER_PAGE, $sortColumn, $sortDirection);
			if (empty($blocks)) {
				break;
			}
			
			foreach ($blocks as $b) {
				$include = false;
				
				if (stripos($b->reason, $filter) !== false) {
					$include = true;
				}
				
				if (!$include && $b->type == self::TYPE_PATTERN) {
					if (stripos($b->hostname, $filter) !== false) { $include = true; }
					else if (stripos($b->userAgent, $filter) !== false) { $include = true; }
					else if (stripos($b->referrer, $filter) !== false) { $include = true; }
					else if (stripos($b->ipRange, $filter) !== false) { $include = true; }
				}
				
				if (!$include && stripos(self::nameForType($b->type), $filter) !== false) {
					$include = true;
				}
				
				if (!$include) {
					switch ($matchType) {
						case 'ip':
							if ($b->matchRequest($matchValue, '', '') != self::MATCH_NONE) {
								$include = true;
							}
							else if ($b->type == self::TYPE_LOCKOUT && wfUtils::inet_pton($matchValue) == wfUtils::inet_pton($b->ip)) {
								$include = true;
							}
							break;
						case 'ipregex':
							if (preg_match('/' . $matchValue . '/i', $b->ip)) {
								$include = true;
							}
							break;
						case 'literal':
							//Already checked above
							break;
					}
				}
				
				if ($include) {
					if ($offsetProcessed < $offset) { //Still searching for the start offset
						$offsetProcessed++;
						continue;
					}
					
					$returnBlocks[] = $b;
					$limitProcessed++;
				}
				
				if ($limit != -1 && $limitProcessed >= $limit) {
					return $returnBlocks;
				}
			}
		}
		
		return $returnBlocks;
	}
	
	/**
	 * Returns all unexpired blocks of types wfBlock::TYPE_IP_MANUAL, wfBlock::TYPE_IP_AUTOMATIC_TEMPORARY, wfBlock::TYPE_IP_AUTOMATIC_PERMANENT, wfBlock::TYPE_WFSN_TEMPORARY, wfBlock::TYPE_RATE_BLOCK, and wfBlock::TYPE_RATE_THROTTLE.
	 *
	 * @param bool $prefetch If true, the full data for the block is fetched rather than using lazy loading.
	 * @return wfBlock[]
	 */
	public static function ipBlocks($prefetch = false) {
		return self::allBlocks($prefetch, array(self::TYPE_IP_MANUAL, self::TYPE_IP_AUTOMATIC_TEMPORARY, self::TYPE_IP_AUTOMATIC_PERMANENT, self::TYPE_WFSN_TEMPORARY, self::TYPE_RATE_BLOCK, self::TYPE_RATE_THROTTLE));
	}
	
	/**
	 * Finds an IP block matching the given IP, returning it if found. Returns false if none are found.
	 * 
	 * @param string $ip
	 * @return bool|wfBlock
	 */
	public static function findIPBlock($ip) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		
		$query = "SELECT * FROM `{$blocksTable}` WHERE ";
		
		$ofTypes = array(self::TYPE_IP_MANUAL, self::TYPE_IP_AUTOMATIC_TEMPORARY, self::TYPE_IP_AUTOMATIC_PERMANENT, self::TYPE_WFSN_TEMPORARY, self::TYPE_RATE_BLOCK, self::TYPE_RATE_THROTTLE);
		$query .= "`type` IN (" . implode(', ', $ofTypes) . ') AND ';
		$query .= "`IP` = {$ipHex} AND ";
		$query .= '(`expiration` = ' . self::DURATION_FOREVER . ' OR `expiration` > UNIX_TIMESTAMP()) ORDER BY `blockedTime` DESC LIMIT 1';
		
		$r = $wpdb->get_row($query, ARRAY_A);
		if (is_array($r)) {
			$ip = wfUtils::inet_ntop($r['IP']);
			return self::_recordFromRow($r);
		}
		return false;
	}
	
	/**
	 * Returns all unexpired blocks of type wfBlock::TYPE_COUNTRY.
	 *
	 * @param bool $prefetch If true, the full data for the block is fetched rather than using lazy loading.
	 * @return wfBlock[]
	 */
	public static function countryBlocks($prefetch = false) {
		return self::allBlocks($prefetch, array(self::TYPE_COUNTRY));
	}
	
	/**
	 * Returns whether or not there is a country block rule.
	 * 
	 * @return bool
	 */
	public static function hasCountryBlock() {
		$countryBlocks = self::countryBlocks();
		return !empty($countryBlocks);
	}
	
	/**
	 * Returns the value for the country blocking bypass cookie.
	 *
	 * @return string
	 */
	public static function countryBlockingBypassCookieValue() {
		$val = wfConfig::get('cbl_cookieVal', false);
		if (!$val) {
			$val = uniqid();
			wfConfig::set('cbl_cookieVal', $val);
		}
		return $val;
	}
	
	/**
	 * Returns all unexpired blocks of type wfBlock::TYPE_PATTERN.
	 * 
	 * @param bool $prefetch If true, the full data for the block is fetched rather than using lazy loading.
	 * @return wfBlock[]
	 */
	public static function patternBlocks($prefetch = false) {
		return self::allBlocks($prefetch, array(self::TYPE_PATTERN));
	}
	
	/**
	 * Returns all unexpired lockouts (type wfBlock::TYPE_LOCKOUT).
	 *
	 * @param bool $prefetch If true, the full data for the block is fetched rather than using lazy loading.
	 * @return wfBlock[]
	 */
	public static function lockouts($prefetch = false) {
		return self::allBlocks($prefetch, array(self::TYPE_LOCKOUT));
	}
	
	/**
	 * Returns the lockout record for the given IP if it exists.
	 * 
	 * @param string $ip
	 * @return bool|wfBlock
	 */
	public static function lockoutForIP($ip) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		
		$row = $wpdb->get_row($wpdb->prepare("SELECT * FROM `{$blocksTable}` WHERE `IP` = {$ipHex} AND `type` = %d AND (`expiration` = %d OR `expiration` > UNIX_TIMESTAMP())",  self::TYPE_LOCKOUT, self::DURATION_FOREVER), ARRAY_A);
		if ($row) {
			return self::_recordFromRow($row);
		}
		
		return false;
	}
	
	/**
	 * Removes all blocks whose ID is in the given array.
	 * 
	 * @param array $blockIDs
	 * @param bool $retrieve if true, fetch and return the deleted rows
	 * @param bool $notify Whether or not to broadcast the deletion action (should only do when this is called in response to a manual action)
	 * @return bool|array true(or an array of blocks, if $retrieve is specified) or false on failure
	 */
	public static function removeBlockIDs($blockIDs, $retrieve = false, $notify = true) {
		$blockIDs = array_map('intval', $blockIDs);
		$blocks = self::_recordsFromRows($blockIDs);
		$result = self::removeMultiple($blocks, $notify);
		if ($retrieve && $result) {
			return $result;
		}
		
		return !!$result;
	}
	
	/**
	 * Removes all IP blocks (i.e., manual, wfsn, or rate limited)
	 *
	 * @param bool $notify Whether or not to broadcast the deletion action (should only do when this is called in response to a manual action)
	 */
	public static function removeAllIPBlocks($notify = true) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$rows = $wpdb->get_results("SELECT * FROM `{$blocksTable}` WHERE `type` IN (" . implode(', ', array(self::TYPE_IP_MANUAL, self::TYPE_IP_AUTOMATIC_TEMPORARY, self::TYPE_IP_AUTOMATIC_PERMANENT, self::TYPE_WFSN_TEMPORARY, self::TYPE_RATE_BLOCK, self::TYPE_RATE_THROTTLE, self::TYPE_LOCKOUT)) . ")", ARRAY_A);
		$blocks = self::_recordsFromRows($rows);
		self::removeMultiple($blocks, $notify);
	}
	
	/**
	 * Removes all country blocks
	 *
	 * @param bool $notify Whether or not to broadcast the deletion action (should only do when this is called in response to a manual action)
	 */
	public static function removeAllCountryBlocks($notify = true) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$rows = $wpdb->get_results("SELECT * FROM `{$blocksTable}` WHERE `type` IN (" . implode(', ', array(self::TYPE_COUNTRY)) . ")", ARRAY_A);
		$blocks = self::_recordsFromRows($rows);
		self::removeMultiple($blocks, $notify);
	}
	
	/**
	 * Removes all blocks that were created by WFSN responses.
	 * 
	 * Note: if this ever becomes called by a manual user action, it should be refactored to call 
	 * self::removeMultiple() in order to dispatch the relevant event.
	 */
	public static function removeTemporaryWFSNBlocks() {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$wpdb->query($wpdb->prepare("DELETE FROM `{$blocksTable}` WHERE `type` = %d", self::TYPE_WFSN_TEMPORARY));
	}
	
	/**
	 * Converts all blocks to non-expiring whose ID is in the given array.
	 * 
	 * @param array $blockIDs
	 */
	public static function makePermanentBlockIDs($blockIDs) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		
		//TODO: revise this if we support user-customizable durations
		$supportedTypes = array(
			self::TYPE_WFSN_TEMPORARY,
			self::TYPE_RATE_BLOCK,
			self::TYPE_RATE_THROTTLE,
			self::TYPE_LOCKOUT,
			self::TYPE_IP_AUTOMATIC_TEMPORARY,
		);
		
		$blockIDs = array_map('intval', $blockIDs);
		$query = $wpdb->prepare("UPDATE `{$blocksTable}` SET `expiration` = %d, `type` = %d WHERE `id` IN (" . implode(', ', $blockIDs) . ") AND `type` IN (" . implode(', ', $supportedTypes) . ") AND (`expiration` > UNIX_TIMESTAMP())", self::DURATION_FOREVER, self::TYPE_IP_AUTOMATIC_PERMANENT);
		$wpdb->query($query);
		
		$supportedTypes = array(
			self::TYPE_IP_MANUAL,
		);
		
		$blockIDs = array_map('intval', $blockIDs);
		$query = $wpdb->prepare("UPDATE `{$blocksTable}` SET `expiration` = %d, `type` = %d WHERE `id` IN (" . implode(', ', $blockIDs) . ") AND `type` IN (" . implode(', ', $supportedTypes) . ") AND (`expiration` > UNIX_TIMESTAMP())", self::DURATION_FOREVER, self::TYPE_IP_MANUAL);
		$wpdb->query($query);
	}
	
	/**
	 * Removes all specific IP blocks and lockouts that can result in the given IP being blocked.
	 * 
	 * @param string $ip
	 * @param bool $notify Whether or not to broadcast the deletion action (should only do when this is called in response to a manual action)
	 */
	public static function unblockIP($ip, $notify = true) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$rows = $wpdb->get_results("SELECT * FROM `{$blocksTable}` WHERE `IP` = {$ipHex}", ARRAY_A);
		$blocks = self::_recordsFromRows($rows);
		self::removeMultiple($blocks, $notify);
	}
	
	/**
	 * Removes all lockouts that can result in the given IP being blocked.
	 *
	 * @param string $ip
	 * @param bool $notify Whether or not to broadcast the deletion action (should only do when this is called in response to a manual action)
	 */
	public static function unlockOutIP($ip, $notify = true) {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		$rows = $wpdb->get_results($wpdb->prepare("SELECT * FROM `{$blocksTable}` WHERE `IP` = {$ipHex} AND `type` = %d", self::TYPE_LOCKOUT), ARRAY_A);
		$blocks = self::_recordsFromRows($rows);
		self::removeMultiple($blocks, $notify);
	}
	
	/**
	 * Internal function to convert a raw query row result into a populated wfBlock instance. $row is expected to be an
	 * associative array.
	 * 
	 * @param array $row
	 * @return mixed
	 */
	private static function _recordFromRow($row) {
		$records = self::_recordsFromRows(array($row));
		return $records[0];
	}
	
	/**
	 * Internal function to convert an array of raw query row results to an array of populated wfBlock instances. $rows
	 * is expected to be an array of integer IDs or an array of associative arrays.
	 * 
	 * @param array[]|int[] $rows
	 * @return array
	 */
	private static function _recordsFromRows($rows) {
		$records = array();
		foreach ($rows as $r) {
			if ($r instanceof stdClass) {
				$r = (array) $r;
			}
			
			if (is_array($r)) {
				$b = new wfBlock($r['id']);
				$b->_populateData($r);
			}
			else {
				$b = new wfBlock($r);
			}
			$records[] = $b;
		}
		return $records;
	}
	
	/**
	 * Constructs a wfBlock instance. This _does not_ create a new record in the table, only fetches or updates an existing one.
	 * 
	 * @param $id
	 * @param bool $type
	 * @param bool $ip
	 * @param bool $blockedTime
	 * @param bool $reason
	 * @param bool $lastAttempt
	 * @param bool $blockedHits
	 * @param bool $expiration
	 * @param bool $parameters
	 */
	public function __construct($id, $type = false, $ip = false, $blockedTime = false, $reason = false, $lastAttempt = false, $blockedHits = false, $expiration = false, $parameters = false) {
		$this->_id = $id;
		$this->_type = $type;
		$this->_ip = $ip;
		$this->_blockedTime = $blockedTime;
		$this->_reason = $reason;
		$this->_lastAttempt = $lastAttempt;
		$this->_blockedHits = $blockedHits;
		$this->_expiration = $expiration;
		$this->_parameters = $parameters;
	}
	
	public function __get($key) {
		switch ($key) {
			case 'id':
				return $this->_id;
			case 'type':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_type;
			case 'IP':
			case 'ip':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_ip;
			case 'blockedTime':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_blockedTime;
			case 'reason':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_reason;
			case 'lastAttempt':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_lastAttempt;
			case 'blockedHits':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_blockedHits;
			case 'expiration':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_expiration;
			case 'parameters':
				if ($this->_type === false) { $this->_fetch(); }
				return $this->_parameters;
				
			//Country
			case 'blockLogin':
				if ($this->type != self::TYPE_COUNTRY) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['blockLogin'];
			case 'blockSite':
				if ($this->type != self::TYPE_COUNTRY) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['blockSite'];
			case 'countries':
				if ($this->type != self::TYPE_COUNTRY) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['countries'];
				
			//Pattern
			case 'ipRange':
				if ($this->type != self::TYPE_PATTERN) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['ipRange'];
			case 'hostname':
				if ($this->type != self::TYPE_PATTERN) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['hostname'];
			case 'userAgent':
				if ($this->type != self::TYPE_PATTERN) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['userAgent'];
			case 'referrer':
				if ($this->type != self::TYPE_PATTERN) { throw new OutOfBoundsException("{$key} is not a valid property for this block type"); }
				return $this->parameters['referrer'];
		}
		
		throw new OutOfBoundsException("{$key} is not a valid property");
	}
	
	public function __isset($key) {
		switch ($key) {
			case 'id':
			case 'type':
			case 'ip':
			case 'blockedTime':
			case 'reason':
			case 'lastAttempt':
			case 'blockedHits':
			case 'expiration':
				return true;
			case 'parameters':
				if ($this->_type === false) { $this->_fetch(); }
				return !empty($this->_parameters);
			
			//Country
			case 'blockLogin':
				if ($this->type != self::TYPE_COUNTRY) { return false; }
				return !empty($this->parameters['blockLogin']);
			case 'blockSite':
				if ($this->type != self::TYPE_COUNTRY) { return false; }
				return !empty($this->parameters['blockSite']);
			case 'countries':
				if ($this->type != self::TYPE_COUNTRY) { return false; }
				return !empty($this->parameters['countries']);
			
			//Pattern
			case 'ipRange':
				if ($this->type != self::TYPE_PATTERN) { return false; }
				return !empty($this->parameters['ipRange']);
			case 'hostname':
				if ($this->type != self::TYPE_PATTERN) { return false; }
				return !empty($this->parameters['hostname']);
			case 'userAgent':
				if ($this->type != self::TYPE_PATTERN) { return false; }
				return !empty($this->parameters['userAgent']);
			case 'referrer':
				if ($this->type != self::TYPE_PATTERN) { return false; }
				return !empty($this->parameters['referrer']);
		}
		
		return false;
	}
	
	/**
	 * Fetches the record for the block from the database and populates the instance variables.
	 */
	private function _fetch() {
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$row = $wpdb->get_row($wpdb->prepare("SELECT * FROM `{$blocksTable}` WHERE `id` = %d", $this->id), ARRAY_A);
		if ($row !== null) {
			$this->_populateData($row);
		}
	}
	
	/**
	 * Populates the instance data from the given $row.
	 * 
	 * @param array $row
	 */
	private function _populateData($row) {
		$this->_type = $row['type'];
		
		$ip = $row['IP'];
		if ($ip == self::MARKER_COUNTRY || $ip == self::MARKER_PATTERN) {
			$this->_ip = null;
		}
		else {
			$this->_ip = wfUtils::inet_ntop($ip);
		}
		
		$this->_blockedTime = $row['blockedTime'];
		$this->_reason = $row['reason'];
		$this->_lastAttempt = $row['lastAttempt'];
		$this->_blockedHits = $row['blockedHits'];
		$this->_expiration = $row['expiration'];
		
		$parameters = $row['parameters'];
		if ($parameters === null) {
			$this->_parameters = null;
		}
		else {
			$this->_parameters = @json_decode($parameters, true);
		}
	}
	
	/**
	 * Tests the block parameters against the given request. If matched, this will return the corresponding wfBlock::MATCH_
	 * constant. If not, it will return wfBlock::MATCH_NONE.
	 * 
	 * @param $ip
	 * @param $userAgent
	 * @param $referrer
	 * @return int
	 */
	public function matchRequest($ip, $userAgent, $referrer) {
		switch ($this->type) {
			case self::TYPE_IP_MANUAL:
			case self::TYPE_IP_AUTOMATIC_TEMPORARY:
			case self::TYPE_IP_AUTOMATIC_PERMANENT:
			case self::TYPE_WFSN_TEMPORARY:
			case self::TYPE_RATE_BLOCK:
			case self::TYPE_RATE_THROTTLE:
				if (wfUtils::inet_pton($ip) == wfUtils::inet_pton($this->ip))
				{
					return self::MATCH_IP;
				}
				break;
			case self::TYPE_PATTERN:
				$match = (!empty($this->ipRange) || !empty($this->hostname) || !empty($this->userAgent) || !empty($this->referrer));
				if (!empty($this->ipRange)) {
					$range = new wfUserIPRange($this->ipRange);
					$match = $match && $range->isIPInRange($ip);
				}
				if (!empty($this->hostname)) {
					$hostname = wfUtils::reverseLookup($ip);
					$match = $match && preg_match(wfUtils::patternToRegex($this->hostname), $hostname);
				}
				if (!empty($this->userAgent)) {
					$match = $match && fnmatch($this->userAgent, $userAgent, FNM_CASEFOLD);
				}
				if (!empty($this->referrer)) {
					$match = $match && fnmatch($this->referrer, $referrer, FNM_CASEFOLD);
				}
				
				if ($match) {
					return self::MATCH_PATTERN;
				}
				
				break;
			case self::TYPE_COUNTRY:
				if (!wfConfig::get('isPaid')) {
					return self::MATCH_NONE;
				}
				
				//Bypass Redirect URL Hit
				$bareRequestURI = wfUtils::extractBareURI($_SERVER['REQUEST_URI']);
				$bareBypassRedirURI = wfUtils::extractBareURI(wfConfig::get('cbl_bypassRedirURL', ''));
				if ($bareBypassRedirURI && $bareRequestURI == $bareBypassRedirURI) {
					$bypassRedirDest = wfConfig::get('cbl_bypassRedirDest', '');
					if ($bypassRedirDest) {
						wfUtils::setcookie('wfCBLBypass', wfBlock::countryBlockingBypassCookieValue(), time() + (86400 * 365), '/', null, wfUtils::isFullSSL(), true);
						return self::MATCH_COUNTRY_REDIR_BYPASS;
					}
				}
				
				//Bypass View URL Hit
				$bareBypassViewURI = wfUtils::extractBareURI(wfConfig::get('cbl_bypassViewURL', ''));
				if ($bareBypassViewURI && $bareBypassViewURI == $bareRequestURI) {
					wfUtils::setcookie('wfCBLBypass', wfBlock::countryBlockingBypassCookieValue(), time() + (86400 * 365), '/', null, wfUtils::isFullSSL(), true);
					return self::MATCH_NONE;
				}
				
				//Early exit checks
				if ($this->_shouldBypassCountryBlocking()) { //Has valid bypass cookie
					return self::MATCH_NONE;
				}
				
				if ($this->blockLogin) {
					add_filter('authenticate', array($this, '_checkForBlockedCountryFilter'), 1, 1);
				}
				
				if (!$this->blockLogin && $this->_isAuthRequest()) { //Not blocking login and this is a login request
					return self::MATCH_NONE;
				}
				else if (!$this->blockSite && !$this->_isAuthRequest()) { //Not blocking site and this may be a site request
					return self::MATCH_NONE;
				}
				else if (is_user_logged_in() && !wfConfig::get('cbl_loggedInBlocked', false)) { //Not blocking logged in users and a login session exists
					return self::MATCH_NONE;
				}
				
				//Block everything
				if ($this->blockSite && $this->blockLogin) {
					return $this->_checkForBlockedCountry();
				}
				
				//Block the login form itself and any attempt to authenticate
				if ($this->blockLogin && $this->_isAuthRequest()) {
					return $this->_checkForBlockedCountry();
				}
				
				//Block requests that aren't to the login page, xmlrpc.php, or a user already logged in
				if ($this->blockSite && !$this->_isAuthRequest() && !defined('XMLRPC_REQUEST')) {
					return $this->_checkForBlockedCountry();
				}
				
				//XMLRPC is inaccesible when public portion of the site and auth is disabled
				if ($this->blockLogin && $this->blockSite && defined('XMLRPC_REQUEST')) {
					return $this->_checkForBlockedCountry();
				}
				
				break;
		}
		
		return self::MATCH_NONE;
	}
	
	/**
	 * Returns whether or not the current request should be treated as an auth request.
	 * 
	 * @return bool
	 */
	private function _isAuthRequest() {
		if ((strpos($_SERVER['REQUEST_URI'], '/wp-login.php') !== false)) {
			return true;
		}
		return false;
	}
	
	/**
	 * Tests whether or not the country blocking bypass cookie is set and valid.
	 * 
	 * @return bool
	 */
	private function _shouldBypassCountryBlocking() {
		if (isset($_COOKIE['wfCBLBypass']) && $_COOKIE['wfCBLBypass'] == wfBlock::countryBlockingBypassCookieValue()) {
			return true;
		}
		return false;
	}
	
	/**
	 * Checks the country block against the requesting IP, returning the action to take.
	 * 
	 * @return int
	 */
	private function _checkForBlockedCountry() {
		$blockedCountries = $this->countries;
		$bareRequestURI = untrailingslashit(wfUtils::extractBareURI($_SERVER['REQUEST_URI']));
		$IP = wfUtils::getIP();
		if ($country = wfUtils::IP2Country($IP)) {
			foreach ($blockedCountries as $blocked) {
				if (strtoupper($blocked) == strtoupper($country)) { //At this point we know the user has been blocked
					if (wfConfig::get('cbl_action') == 'redir') {
						$redirURL = wfConfig::get('cbl_redirURL');
						$eRedirHost = wfUtils::extractHostname($redirURL);
						$isExternalRedir = false;
						if ($eRedirHost && $eRedirHost != wfUtils::extractHostname(home_url())) { //It's an external redirect...
							$isExternalRedir = true;
						}
						
						if ((!$isExternalRedir) && untrailingslashit(wfUtils::extractBareURI($redirURL)) == $bareRequestURI) { //Is this the URI we want to redirect to, then don't block it
							return self::MATCH_NONE;
						}
						else {
							return self::MATCH_COUNTRY_REDIR;
						}
					}
					else {
						return self::MATCH_COUNTRY_BLOCK;
					}
				}
			}
		}
		
		return self::MATCH_NONE;
	}
	
	/**
	 * Filter hook for the country blocking check. Does nothing if not blocked, otherwise presents the block page and exits.
	 * 
	 * Note: Must remain `public` for callback to work.
	 */
	public function _checkForBlockedCountryFilter($user) {
		$block = $this->_checkForBlockedCountry();
		if ($block == self::MATCH_NONE) { 
			return $user;
		}
		
		$log = wfLog::shared();
		$log->getCurrentRequest()->actionDescription = __('blocked access via country blocking', 'wordfence');
		wfConfig::inc('totalCountryBlocked');
		wfActivityReport::logBlockedIP(wfUtils::getIP(), null, 'country');
		$log->do503(3600, __('Access from your area has been temporarily limited for security reasons', 'wordfence')); //exits
	}
	
	/**
	 * Adds $quantity to the blocked count and sets the timestamp for lastAttempt.
	 * 
	 * @param int $quantity
	 * @param bool|int $timestamp
	 */
	public function recordBlock($quantity = 1, $timestamp = false) {
		if ($timestamp === false) {
			$timestamp = time();
		}
		
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		$wpdb->query($wpdb->prepare("UPDATE `{$blocksTable}` SET `blockedHits` = `blockedHits` + %d, `lastAttempt` = GREATEST(`lastAttempt`, %d) WHERE `id` = %d", $quantity, $timestamp, $this->id));
		$this->_type = false; //Trigger a re-fetch next access 
	}
	
	/**
	 * Returns an array suitable for JSON of the values needed to edit the block.
	 * 
	 * @return array
	 */
	public function editValues() {
		switch ($this->type) {
			case self::TYPE_COUNTRY:
				return array(
					'blockLogin' => wfUtils::truthyToInt($this->blockLogin),
					'blockSite' => wfUtils::truthyToInt($this->blockSite),
					'countries' => $this->countries,
					'reason' => $this->reason,
					'expiration' => $this->expiration,
				);
		}
		
		return array();
	}
	
	/**
	 * Removes this block record. May trigger an additional query to fetch the notification data if $notify is true and
	 * the record is ID-only.
	 * 
	 * @param bool $notify If true, will dispatch the `wordfence_deleted_block` action.
	 * @return null|wfBlock null if a failure occurs, otherwise the block
	 */
	public function remove($notify = false) {
		$result = self::removeMultiple(array($this), $notify);
		if (is_array($result)) {
			return $result[0];
		}
		return null;
	}
	
	/**
	 * Deletes the given block, optionally dispatching the `wordfence_deleted_block` action for each block. May trigger 
	 * an additional query to fetch the notification data if $notify is true and any record is ID-only.
	 * 
	 * @param wfBlock[] $blocks
	 * @param bool $notify If true, will dispatch the `wordfence_deleted_block` action.
	 * @return null|wfBlock[] null if a failure occurs, otherwise the blocks
	 */
	public static function removeMultiple($blocks, $notify = false) {
		if (empty($blocks)) { return array(); }
		
		global $wpdb;
		$blocksTable = wfBlock::blocksTable();
		
		$blockIDs = array_map(function($b) { return intval($b->id); }, $blocks);
		$inClause = implode(', ', $blockIDs);
		
		if ($notify) {
			$blockIDsToPopulate = array_filter(array_map(function($b) { return ($b->_type === false ? intval($b->id) : null); }, $blocks));
			if (!empty($blockIDsToPopulate)) {
				$populateInClause = implode(', ', $blockIDsToPopulate);
				$data = wfUtils::array_kmap(function($r) { return array($r['id'] => $r); }, $wpdb->get_results("SELECT * FROM `{$blocksTable}` WHERE `id` IN ({$populateInClause})", ARRAY_A));
				foreach ($blocks as $b) { /** @var wfBlock $b */
					if (isset($data[$b->id])) {
						$b->_populateData($data[$b->id]);
					}
				}
			}
		}
		
		$query = "DELETE FROM `{$blocksTable}` WHERE `id` IN (" . $inClause . ")";
		if ($wpdb->query($query) !== false) {
			$payload = array();
			if ($notify) {
				foreach ($blocks as $b) {
					$type = $b->type;
					$reason = $b->reason;
					$parameters = (($type != self::TYPE_COUNTRY && $type != self::TYPE_PATTERN) ? $b->ip : $b->parameters);
					
					/**
					 * Fires when a blocking rule is deleted by manual action.
					 *
					 * @since 8.0.0
					 *
					 * @param string $type The type of block.
					 * @param string $reason The reason of the block.
					 * @param array|null $parameters The parameters of the block if needed for disambiguation (e.g., the country block returns null because there is only one rule at most)
					 */
					do_action('wordfence_deleted_block', $type, $reason, $parameters);
				}
			}
			
			return $blocks;
		}
		
		return null;
	}
}PK       ! �)���  �    block/wfRateLimit.phpnu �[���        <?php

class wfRateLimit {
	const TYPE_GLOBAL = 'global';
	const TYPE_CRAWLER_VIEWS = 'crawler-views';
	const TYPE_CRAWLER_404S = 'crawler-404s';
	const TYPE_HUMAN_VIEWS = 'human-views';
	const TYPE_HUMAN_404S = 'human-404s';
	
	const HIT_TYPE_404 = '404';
	const HIT_TYPE_NORMAL = 'hit';
	
	const VISITOR_TYPE_HUMAN = 'human';
	const VISITOR_TYPE_CRAWLER = 'crawler';
	
	protected $_type;
	protected static $_hitCount = false;
	
	public static function table() {
		return wfDB::networkTable('wfTrafficRates');
	}
	
	public static function trimData() {
		$wfdb = wfDB::shared();
		$table = self::table();
		$wfdb->queryWrite("DELETE FROM {$table} WHERE eMin < FLOOR((UNIX_TIMESTAMP() - 60) / 60)");
	}
	
	public static function globalRateLimit() {
		static $_cachedGlobal = null;
		if ($_cachedGlobal === null) {
			$_cachedGlobal = new wfRateLimit(self::TYPE_GLOBAL);
		}
		return $_cachedGlobal;
	}
	
	public static function crawlerViewsRateLimit() {
		static $_cachedCrawlerViews = null;
		if ($_cachedCrawlerViews === null) {
			$_cachedCrawlerViews = new wfRateLimit(self::TYPE_CRAWLER_VIEWS);
		}
		return $_cachedCrawlerViews;
	}
	
	public static function crawler404sRateLimit() {
		static $_cachedCrawler404s = null;
		if ($_cachedCrawler404s === null) {
			$_cachedCrawler404s = new wfRateLimit(self::TYPE_CRAWLER_404S);
		}
		return $_cachedCrawler404s;
	}
	
	public static function humanViewsRateLimit() {
		static $_cachedHumanViews = null;
		if ($_cachedHumanViews === null) {
			$_cachedHumanViews = new wfRateLimit(self::TYPE_HUMAN_VIEWS);
		}
		return $_cachedHumanViews;
	}
	
	public static function human404sRateLimit() {
		static $_cachedHuman404s = null;
		if ($_cachedHuman404s === null) {
			$_cachedHuman404s = new wfRateLimit(self::TYPE_HUMAN_404S);
		}
		return $_cachedHuman404s;
	}
	
	/**
	 * Returns whether or not humans and bots have the same rate limits configured.
	 *
	 * @return bool
	 */
	public static function identicalHumanBotRateLimits() {
		$humanViews = self::humanViewsRateLimit();
		$crawlerViews = self::crawlerViewsRateLimit();
		if ($humanViews->isEnabled() != $crawlerViews->isEnabled()) {
			return false;
		}
		if ($humanViews->limit() != $crawlerViews->limit()) {
			return false;
		}
		
		$human404s = self::human404sRateLimit();
		$crawler404s = self::crawler404sRateLimit();
		if ($human404s->isEnabled() != $crawler404s->isEnabled()) {
			return false;
		}
		if ($human404s->limit() != $crawler404s->limit()) {
			return false;
		}
		
		return true;
	}
	
	public static function mightRateLimit($hitType) {
		if (!wfConfig::get('firewallEnabled')) {
			return false;
		}
		
		$IP = wfUtils::getIP();
		if (wfBlock::isWhitelisted($IP)) {
			return false;
		}
		
		if (wfConfig::get('neverBlockBG') == 'neverBlockUA' && wfCrawl::isGoogleCrawler()) {
			return false;
		}
		
		if (wfConfig::get('neverBlockBG') == 'neverBlockVerified' && wfCrawl::isVerifiedGoogleCrawler()) {
			return false;
		}
			
		if ($hitType == '404') {
			$allowed404s = wfConfig::get('allowed404s');
			if (is_string($allowed404s)) {
				$allowed404s = array_filter(preg_split("/[\r\n]+/", $allowed404s));
				$allowed404sPattern = '';
				foreach ($allowed404s as $allowed404) {
					$allowed404sPattern .= preg_replace('/\\\\\*/', '.*?', preg_quote($allowed404, '/')) . '|';
				}
				$uri = $_SERVER['REQUEST_URI'];
				if (($index = strpos($uri, '?')) !== false) {
					$uri = substr($uri, 0, $index);
				}
				if ($allowed404sPattern && preg_match('/^' . substr($allowed404sPattern, 0, -1) . '$/i', $uri)) {
					return false;
				}
			}
		}
		
		if (self::globalRateLimit()->isEnabled()) {
			return true;
		}
		
		$visitorType = self::visitorType();
		
		if ($visitorType == self::VISITOR_TYPE_CRAWLER) {
			if ($hitType == self::HIT_TYPE_NORMAL) {
				if (self::crawlerViewsRateLimit()->isEnabled()) {
					return true;
				}
			}
			else {
				if (self::crawler404sRateLimit()->isEnabled()) {
					return true;
				}
			}
		}
		else {
			if ($hitType == self::HIT_TYPE_NORMAL) {
				if (self::humanViewsRateLimit()->isEnabled()) {
					return true;
				}
			}
			else {
				if (self::human404sRateLimit()->isEnabled()) {
					return true;
				}
			}
		}
		
		return false;
	}
	
	public static function countHit($hitType, $ip) {
		$table  = self::table();
		$ipHex = wfDB::binaryValueToSQLHex(wfUtils::inet_pton($ip));
		wfDB::shared()->queryWrite("INSERT INTO {$table} (eMin, IP, hitType, hits) VALUES (FLOOR(UNIX_TIMESTAMP() / 60), {$ipHex}, %s, @wfcurrenthits := 1) ON DUPLICATE KEY UPDATE hits = IF(@wfcurrenthits := hits + 1, hits + 1, hits + 1)", $hitType);
	}
	
	/**
	 * Returns one of the VISITOR_TYPE_ constants for the purposes of determining which rate limit to apply.
	 * 
	 * @return string
	 */
	public static function visitorType() {
		static $_cachedVisitorType = null;
		if ($_cachedVisitorType === null) {
			$_cachedVisitorType = ((isset($_SERVER['HTTP_USER_AGENT']) && wfCrawl::isCrawler($_SERVER['HTTP_USER_AGENT'])) || empty($_SERVER['HTTP_USER_AGENT']) ? wfRateLimit::VISITOR_TYPE_CRAWLER : wfRateLimit::VISITOR_TYPE_HUMAN);	
		}
		return $_cachedVisitorType;
	}
	
	protected function __construct($type) {
		$this->_type = $type;
	}
	
	/**
	 * Returns whether or not this rate limit is configured in a way where it would run.
	 * 
	 * @return bool
	 */
	public function isEnabled() {
		switch ($this->_type) {
			case self::TYPE_GLOBAL:
				return wfConfig::get('maxGlobalRequests') != 'DISABLED' && wfConfig::getInt('maxGlobalRequests') > 0;
			case self::TYPE_CRAWLER_VIEWS:
				return wfConfig::get('maxRequestsCrawlers') != 'DISABLED' && wfConfig::getInt('maxRequestsCrawlers') > 0;
			case self::TYPE_CRAWLER_404S:
				return wfConfig::get('max404Crawlers') != 'DISABLED' && wfConfig::getInt('max404Crawlers') > 0;
			case self::TYPE_HUMAN_VIEWS:
				return wfConfig::get('maxRequestsHumans') != 'DISABLED' && wfConfig::getInt('maxRequestsHumans') > 0;
			case self::TYPE_HUMAN_404S:
				return wfConfig::get('max404Humans') != 'DISABLED' && wfConfig::getInt('max404Humans') > 0;
		}
		return true;
	}
	
	public function limit() {
		switch ($this->_type) {
			case self::TYPE_GLOBAL:
				return wfConfig::getInt('maxGlobalRequests');
			case self::TYPE_CRAWLER_VIEWS:
				return wfConfig::getInt('maxRequestsCrawlers');
			case self::TYPE_CRAWLER_404S:
				return wfConfig::getInt('max404Crawlers');
			case self::TYPE_HUMAN_VIEWS:
				return wfConfig::getInt('maxRequestsHumans');
			case self::TYPE_HUMAN_404S:
				return wfConfig::getInt('max404Humans');
		}
		return -1;
	}
	
	public function shouldEnforce($hitType) {
		switch ($this->_type) {
			case self::TYPE_GLOBAL:
				return $this->isEnabled() && $this->_hitCount() > max(wfConfig::getInt('maxGlobalRequests'), 1);
			case self::TYPE_CRAWLER_VIEWS:
				return self::visitorType() == self::VISITOR_TYPE_CRAWLER && $hitType == self::HIT_TYPE_NORMAL && $this->isEnabled() && $this->_hitCount() > wfConfig::getInt('maxRequestsCrawlers');
			case self::TYPE_CRAWLER_404S:
				return self::visitorType() == self::VISITOR_TYPE_CRAWLER && $hitType == self::HIT_TYPE_404 && $this->isEnabled() && $this->_hitCount() > wfConfig::getInt('max404Crawlers');
			case self::TYPE_HUMAN_VIEWS:
				return self::visitorType() == self::VISITOR_TYPE_HUMAN && $hitType == self::HIT_TYPE_NORMAL && $this->isEnabled() && $this->_hitCount() > wfConfig::getInt('maxRequestsHumans');
			case self::TYPE_HUMAN_404S:
				return self::visitorType() == self::VISITOR_TYPE_HUMAN && $hitType == self::HIT_TYPE_404 && $this->isEnabled() && $this->_hitCount() > wfConfig::getInt('max404Humans');
		}
		return false;
	}
	
	/**
	 * Returns the hit count corresponding to the current request type.
	 * 
	 * @return int
	 */
	protected function _hitCount() {
		if (self::$_hitCount === false) {
			self::$_hitCount = (int) wfDB::shared()->querySingle("SELECT @wfcurrenthits");
		}
		return self::$_hitCount;
	}
}PK       ! ob  b  	  .htaccessnu �[���        <IfModule mod_rewrite.c>
        RewriteEngine On
        RewriteCond %{REQUEST_URI} \.php$
        RewriteRule .* - [F,L,NC]
</IfModule>
<IfModule !mod_rewrite.c>
	<FilesMatch "\.php$">
	<IfModule mod_authz_core.c>
		Require all denied
	</IfModule>
	<IfModule !mod_authz_core.c>
		Order deny,allow
		Deny from all
	</IfModule>
	</FilesMatch>
</IfModule>PK         ! OA���  �                  scanner/wfScanner.phpnu �[���        PK         ! ��FTM  M              ]�  common/wfTab.phpnu �[���        PK         ! �b>�0  0              �  page/wfPage.phpnu �[���        PK         !  ��-n@  n@              Y�  firewall/wfFirewall.phpnu �[���        PK         ! ��w�?  ?               block/wfBlock.phpnu �[���        PK         ! �)���  �              � block/wfRateLimit.phpnu �[���        PK         ! ob  b  	            �, .htaccessnu �[���        PK      :  H.   