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<?php

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[1] Fix | Delete

class wfFirewall

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{

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const FIREWALL_MODE_DISABLED = 'disabled';

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const FIREWALL_MODE_LEARNING = 'learning-mode';

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const FIREWALL_MODE_ENABLED = 'enabled';

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const PROTECTION_MODE_EXTENDED = 'extended';

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const PROTECTION_MODE_BASIC = 'basic';

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const RULE_MODE_COMMUNITY = 'community';

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const RULE_MODE_PREMIUM = 'premium';

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const BLACKLIST_MODE_DISABLED = 'disabled';

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const BLACKLIST_MODE_ENABLED = 'enabled';

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const UPDATE_FAILURE_RATELIMIT = 'ratelimit';

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const UPDATE_FAILURE_UNREACHABLE = 'unreachable';

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const UPDATE_FAILURE_FILESYSTEM = 'filesystem';

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/**

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* Returns a string suitable for display of the firewall status.

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* @param null|string $status

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* @param null|string $protection

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* @return string

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public function displayText($status = null, $protection = null) {

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if ($status === null) { $status = $this->firewallMode(); }

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if ($protection === null) { $protection = $this->protectionMode(); }

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switch ($status) {

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case self::FIREWALL_MODE_ENABLED:

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$statusText = __('Enabled', 'wordfence');

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break;

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case self::FIREWALL_MODE_LEARNING:

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$statusText = __('Learning Mode', 'wordfence');

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break;

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default:

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return __('Disabled', 'wordfence');

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}

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switch ($protection) {

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case self::PROTECTION_MODE_EXTENDED:

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$protectionText = __('Extended Protection', 'wordfence');

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break;

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default:

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$protectionText = __('Basic Protection', 'wordfence');

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break;

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}

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return sprintf('%s (%s)', $statusText, $protectionText);

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}

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/**

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* Syncs the status from WAF to the wfConfig table if $toDatabase is true, the reverse if false.

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* @param bool $toDatabase

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public function syncStatus($toDatabase = true) {

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if ($toDatabase) {

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try {

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$status = wfWAF::getInstance()->getStorageEngine()->getConfig('wafStatus');

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if (in_array($status, array(self::FIREWALL_MODE_DISABLED, self::FIREWALL_MODE_LEARNING, self::FIREWALL_MODE_ENABLED))) {

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wfConfig::set('waf_status', $status);

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}

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}

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catch (Exception $e) {

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//Ignore

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}

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}

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else {

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try {

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$status = wfConfig::get('waf_status');

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if (in_array($status, array(self::FIREWALL_MODE_DISABLED, self::FIREWALL_MODE_LEARNING, self::FIREWALL_MODE_ENABLED))) {

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wfWAF::getInstance()->getStorageEngine()->setConfig('wafStatus', $status);

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}

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}

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catch (Exception $e) {

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//Ignore

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}

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}

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}

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/**

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* Tests the WAF configuration and returns true if successful.

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* @return bool

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public function testConfig() {

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try {

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wfWAF::getInstance()->getStorageEngine()->isDisabled();

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}

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catch (Exception $e) {

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return false;

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}

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return true;

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}

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/**

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* Returns a normalized percentage (i.e., in the range [0, 1]) to the corresponding display percentage

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* based on license type.

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* @param float $percentage

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* @param bool $adjust Whether or not to adjust the range to [0, 0.7]

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* @return float

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protected function _normalizedPercentageToDisplay($percentage, $adjust = true) {

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if (wfConfig::get('isPaid') || !$adjust) {

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return round($percentage, 2);

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}

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return round($percentage * 0.70, 2);

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}

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/**

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* Returns the percentage calculation of the overall firewall status, which is displayed under "Firewall"

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* on the Dashboard page.

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* @return float

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public function overallStatus() {

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try {

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$wafStatus = $this->wafStatus();

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$bruteForceStatus = $this->bruteForceStatus();

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$percentage = 0.0;

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$percentage += $wafStatus * 0.80;

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$percentage += $bruteForceStatus * 0.20;

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return $this->_normalizedPercentageToDisplay($percentage, false);

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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return 0.0;

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}

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public function statusList($section = null) {

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$statusList = array();

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$wafStatusList = $this->wafStatusList($section);

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$bruteForceStatusList = $this->bruteForceStatusList();

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foreach ($wafStatusList as $entry) {

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$entry['percentage'] *= 0.8;

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$statusList[] = $entry;

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}

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foreach ($bruteForceStatusList as $entry) {

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$entry['percentage'] *= 0.2;

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$statusList[] = $entry;

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}

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return array_filter($statusList);

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}

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/**

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* Returns the percentage calculation of the WAF status, which is displayed under "Web Application

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* Firewall" on the Firewall page.

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* @return float

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public function wafStatus() {

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try {

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$ruleStatus = $this->ruleStatus(true);

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$blacklistStatus = $this->blacklistStatus();

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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$extendedProtection = $wafEnabled && WFWAF_AUTO_PREPEND && !WFWAF_SUBDIRECTORY_INSTALL;

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$rateLimitingAdvancedBlockingEnabled = wfConfig::get('firewallEnabled', 1);

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if (!$wafEnabled) {

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return 0.0;

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}

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$percentage = 0.0;

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$percentage += $this->_normalizedPercentageToDisplay($ruleStatus * 0.35, true);

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$percentage += $blacklistStatus * 0.35;

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$percentage += ($extendedProtection ? 0.20 : 0.0);

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$percentage += ($rateLimitingAdvancedBlockingEnabled ? 0.10 : 0.0);

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return $this->_normalizedPercentageToDisplay($percentage, false);

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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return 0.0;

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}

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public function wafStatusList($section = null) {

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$statusList = array();

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try {

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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if (!$wafEnabled) {

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return array(

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array(

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'percentage' => 1.0,

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'title' => __('Enable firewall.', 'wordfence'),

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);

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}

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// Get percent of rules enabled.

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$ruleStatus = $this->ruleStatusDescription(true);

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$premiumStatus = array();

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if (!wfConfig::get('isPaid')) {

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$premiumStatus = array(

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'percentage' => 0.30,

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'title' => __('Enable Premium Rules.', 'wordfence'),

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);

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}

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if ($section === 'rules') {

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if ($ruleStatus) {

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$ruleStatus['percentage'] = $this->_normalizedPercentageToDisplay($ruleStatus['percentage']);

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}

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return array_filter(array($ruleStatus, $premiumStatus));

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}

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if ($premiumStatus) {

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$premiumStatus['percentage'] *= 0.35;

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$premiumStatus['percentage'] = $this->_normalizedPercentageToDisplay($premiumStatus['percentage'], false);

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}

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if ($ruleStatus) {

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$ruleStatus['percentage'] *= 0.35;

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$ruleStatus['percentage'] = $this->_normalizedPercentageToDisplay($ruleStatus['percentage']);

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}

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$statusList = array_merge($statusList, array($ruleStatus), array($premiumStatus));

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$blacklistStatus = $this->blacklistStatusDescription();

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if ($section === 'blacklist') {

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return array_filter(array($blacklistStatus));

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}

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if ($blacklistStatus) {

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$blacklistStatus['percentage'] *= 0.35;

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$blacklistStatus['percentage'] = $this->_normalizedPercentageToDisplay($blacklistStatus['percentage'], false);

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}

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$statusList = array_merge($statusList, array($blacklistStatus));

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$extendedProtection = $wafEnabled && WFWAF_AUTO_PREPEND && !WFWAF_SUBDIRECTORY_INSTALL;

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if (!$extendedProtection) {

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$statusList[] = array(

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'percentage' => $this->_normalizedPercentageToDisplay(0.20, false),

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'title' => __('Optimize the Wordfence Firewall.', 'wordfence'),

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);

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}

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$rateLimitingAdvancedBlockingEnabled = wfConfig::get('firewallEnabled', 1);

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if (!$rateLimitingAdvancedBlockingEnabled) {

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$statusList[] = array(

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'percentage' => $this->_normalizedPercentageToDisplay(0.10, false),

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'title' => __('Enable Rate Limiting and Advanced Blocking.', 'wordfence'),

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);

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}

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return array_filter($statusList);

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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if (!WFWAF_OPERATIONAL) {

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return array(array('percentage' => 1.0, 'title' => __('Repair the Wordfence Firewall configuration.', 'wordfence')));

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}

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return array();

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}

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/**

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* Returns the status of the WAF.

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* @return string

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public function firewallMode() {

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try {

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return (!WFWAF_ENABLED ? 'disabled' : wfWAF::getInstance()->getStorageEngine()->getConfig('wafStatus'));

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}

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catch (Exception $e) {

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//Ignore

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}

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return self::FIREWALL_MODE_DISABLED;

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}

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/**

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* Returns the current protection mode configured for the WAF.

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* @return string

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public function protectionMode() {

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if (defined('WFWAF_AUTO_PREPEND') && WFWAF_AUTO_PREPEND) {

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return self::PROTECTION_MODE_EXTENDED;

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}

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return self::PROTECTION_MODE_BASIC;

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}

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/**

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* Returns whether or not this installation is in a subdirectory of another WordPress site with the WAF already optimized.

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* @return bool

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public function isSubDirectoryInstallation() {

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if (defined('WFWAF_SUBDIRECTORY_INSTALL') && WFWAF_SUBDIRECTORY_INSTALL) {

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return true;

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}

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return false;

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}

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/**

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* Returns the percentage calculation of the firewall rule status, which is displayed under "Firewall Rules" on the

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* Firewall page.

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* The calculation is the number of rules enabled divided by the total number of rules. If the WAF is in learning

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* mode, no rules are enforced, so it's clamped to 0%.

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* @param bool $round Round the percentage (in the range [0, 1]) to be only whole percentages.

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* @return float

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public function ruleStatus($round = false) {

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try {

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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if (!$wafEnabled) {

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return 0.0;

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}

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/*$learningMode = !!wfWAF::getInstance()->isInLearningMode();

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if ($learningMode) {

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return 0.0;

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}*/

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$rules = wfWAF::getInstance()->getRules();

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$disabledRules = (array) wfWAF::getInstance()->getStorageEngine()->getConfig('disabledRules');

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/** @var wfWAFRule $rule */

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$enabledCount = 0;

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foreach ($rules as $ruleID => $rule) {

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if (isset($disabledRules[$ruleID]) && $disabledRules[$ruleID]) {

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continue;

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}

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$enabledCount++;

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}

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$percentEnabled = (count($rules) == 0 ? 0 : $enabledCount / count($rules));

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if ($round) {

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return round($percentEnabled, 2);

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}

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return $this->_normalizedPercentageToDisplay($percentEnabled);

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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[352] Fix | Delete

return 0.0;

[353] Fix | Delete

}

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[355] Fix | Delete

/**

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* @param bool $round

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* @return array

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public function ruleStatusDescription($round = false) {

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try {

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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if (!$wafEnabled) {

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return array(

[364] Fix | Delete

'percentage' => 1.0,

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'title' => __('Enable firewall.', 'wordfence'),

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);

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}

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/*$learningMode = !!wfWAF::getInstance()->isInLearningMode();

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if ($learningMode) {

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return 0.0;

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}*/

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$rules = wfWAF::getInstance()->getRules();

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$disabledRules = (array) wfWAF::getInstance()->getStorageEngine()->getConfig('disabledRules');

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/** @var wfWAFRule $rule */

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$enabledCount = 0;

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foreach ($rules as $ruleID => $rule) {

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if (isset($disabledRules[$ruleID]) && $disabledRules[$ruleID]) {

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continue;

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}

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$enabledCount++;

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}

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$percentEnabled = 1.0 - ((float) (count($rules) == 0 ? 0 : $enabledCount / count($rules)));

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if ($percentEnabled === 0.0) {

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return array();

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}

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$reenbleCount = count($rules) - $enabledCount;

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return array(

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'percentage' => ($round ? round($percentEnabled, 2) : $percentEnabled),

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'title' => sprintf(_n('Re-enable %d firewall rule.', 'Re-enable %d firewall rules.', $reenbleCount, 'wordfence'), number_format_i18n($reenbleCount)),

[394] Fix | Delete

);

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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return array(

[401] Fix | Delete

'percentage' => 1.0,

[402] Fix | Delete

'title' => __('Enable firewall.', 'wordfence'),

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);

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}

[405] Fix | Delete

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/**

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* Returns the rule feed that is in use.

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* @return string

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public function ruleMode() {

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if (wfConfig::get('isPaid')) {

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return self::RULE_MODE_PREMIUM;

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}

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return self::RULE_MODE_COMMUNITY;

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}

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/**

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* Returns 100% if the blacklist is enabled, 0% if not.

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* @return float

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public function blacklistStatus() {

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try {

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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if (!$wafEnabled) {

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return 0.0;

[428] Fix | Delete

}

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return $this->blacklistMode() == self::BLACKLIST_MODE_ENABLED ? 1.0 : 0.0;

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}

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catch (Exception $e) {

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//Ignore, return 0%

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}

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return 0.0;

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}

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[439] Fix | Delete

/**

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* Returns 100% if the blacklist is enabled, 0% if not.

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* @return array

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public function blacklistStatusDescription() {

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try {

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$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

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if (!$wafEnabled) {

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return array(

[449] Fix | Delete

'percentage' => 1.0,

[450] Fix | Delete

'title' => __('Enable Firewall.', 'wordfence'),

[451] Fix | Delete

);

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}

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if ($this->blacklistMode() == self::BLACKLIST_MODE_ENABLED) {

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return array();

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}

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return array(

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'percentage' => 1.0,

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'title' => __('Enable Real-Time IP Blocklist.', 'wordfence'),

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);

[461] Fix | Delete

}

[462] Fix | Delete

catch (Exception $e) {

[463] Fix | Delete

//Ignore, return 0%

[464] Fix | Delete

}

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[466] Fix | Delete

return array(

[467] Fix | Delete

'percentage' => 1.0,

[468] Fix | Delete

'title' => __('Enable Real-Time IP Blocklist.', 'wordfence'),

[469] Fix | Delete

);

[470] Fix | Delete

}

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[472] Fix | Delete

/**

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* Returns the blacklist mode.

[474] Fix | Delete

[475] Fix | Delete

* @return string

[476] Fix | Delete

[477] Fix | Delete

public function blacklistMode() {

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$blacklistEnabled = false;

[479] Fix | Delete

try {

[480] Fix | Delete

$wafEnabled = !(!WFWAF_ENABLED || wfWAF::getInstance()->getStorageEngine()->isDisabled());

[481] Fix | Delete

$blacklistEnabled = $wafEnabled && !wfWAF::getInstance()->getStorageEngine()->getConfig('disableWAFBlacklistBlocking');

[482] Fix | Delete

}

[483] Fix | Delete

catch (Exception $e) {

[484] Fix | Delete

//Do nothing

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}

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if (wfConfig::get('isPaid') && $blacklistEnabled) {

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return self::BLACKLIST_MODE_ENABLED;

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}

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return self::BLACKLIST_MODE_DISABLED;

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}

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/**

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* Returns a percentage rating for the brute force protection status. This includes both the WFSN enabled status

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* and the status of individual login security options. These options are available to all, so they are always

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* in the range [0,1].

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* @return float

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