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<?php |
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|
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// Do not allow the file to be called directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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/** |
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* This class is used to pull the firewall/whitelist rules from our API. |
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*/ |
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class P_Rules extends P_Core { |
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|
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/** |
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* Add the actions required to pull the rules. |
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* |
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* @param Patchstack $core |
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* @return void |
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*/ |
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public function __construct( $core ) { |
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parent::__construct( $core ); |
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add_action( 'patchstack_post_firewall_rules', [ $this, 'post_firewall_rules' ] ); |
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add_action( 'patchstack_post_dynamic_firewall_rules', [ $this, 'dynamic_firewall_rules' ] ); |
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} |
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|
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/** |
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* Pull the hardening .htaccess rules from the API. |
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* Then apply it to the .htaccess file after we create a backup. |
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* |
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* @return void |
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*/ |
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public function post_firewall_rules() { |
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if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { |
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return; |
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} |
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|
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// Check if server is supported and if htaccess modifications are disabled. |
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if ( get_site_option( 'patchstack_disable_htaccess', 0 ) || ( defined( 'PS_DISABLE_HTACCESS' ) && PS_DISABLE_HTACCESS ) ) { |
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return; |
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} |
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|
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$rules = $this->plugin->htaccess->get_firewall_rule_settings(); |
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$settings = json_encode( $rules ); |
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$results = $this->plugin->api->post_firewall_rule( [ 'settings' => $settings ] ); |
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|
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// If no rules returned (empty, or a status code/null from a failed request), |
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// we assume all settings are turned off. Guard against assigning to a string |
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// offset, which is a fatal error on PHP 7.1+. |
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if ( ! is_array( $results ) ) { |
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$results = [ 'rules' => '' ]; |
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} |
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|
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// We have rules so apply it to the .htaccess file. |
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if ( isset( $results['rules'] ) ) { |
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$this->plugin->htaccess->write_to_htaccess( $results['rules'] ); |
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return; |
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} |
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} |
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|
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/** |
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* Pull the firewall/whitelist rules from the API. |
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* |
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* @return void |
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*/ |
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public function dynamic_firewall_rules() { |
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if ( $this->get_option( 'patchstack_license_free', 0 ) == 1 ) { |
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return; |
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} |
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|
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// Get the firewall and whitelist rules. |
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$results = $this->plugin->api->post_firewall_rule_json(); |
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if ( ! isset( $results['firewall'] ) ) { |
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return; |
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} |
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|
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// Separate the new firewall engine rules from the old ones. |
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$newRules = []; |
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$newRulesAP = []; |
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$oldRules = []; |
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|
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// Counters for displaying purposes on the API key page. |
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$vPatchCount = 0; |
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$ruleCount = 0; |
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|
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// Parse the rules. |
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foreach ( $results['firewall'] as $rule ) { |
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if ( isset( $rule['rule_v2'] ) ) { |
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$rule['rules'] = $rule['rule_v2']; |
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unset( $rule['rule_v2'] ); |
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|
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// Mark vPatches based on substring. |
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if ( stripos( $rule['title'], ' vulnerabilit' ) !== false && stripos( $rule['title'], 'block ' ) !== false ) { |
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$vPatchCount++; |
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} else { |
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$ruleCount++; |
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} |
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|
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// Differentiate between auto prepend rules and regular ones. |
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if ( isset( $rule['ap'] ) && !empty( $rule['ap'] ) ) { |
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$newRulesAP[] = $rule; |
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} else { |
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$newRules[] = $rule; |
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} |
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} else { |
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$ruleCount++; |
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$oldRules[] = $rule; |
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} |
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} |
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|
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// Update firewall rules. |
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update_option( 'patchstack_firewall_rules', json_encode( $oldRules ), true ); |
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update_option( 'patchstack_firewall_rules_v3', json_encode( $newRules ), true ); |
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update_option( 'patchstack_firewall_rules_v3_ap', json_encode( $newRulesAP ), true ); |
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|
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// Update the counters. |
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update_option( 'patchstack_vpatches_present', $vPatchCount ); |
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update_option( 'patchstack_non_vpatches_present', $ruleCount ); |
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|
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// Separate the new firewall engine rules from the old ones. Only touch the |
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// stored whitelists when the API actually returned them, otherwise a partial |
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// response would wipe the existing whitelist rules. |
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if ( isset( $results['whitelists'] ) && is_array( $results['whitelists'] ) ) { |
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$newRules = []; |
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$oldRules = []; |
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foreach ( $results['whitelists'] as $rule ) { |
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if ( isset( $rule['rule_v2'] ) ) { |
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$rule['rules'] = $rule['rule_v2']; |
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unset( $rule['rule_v2'] ); |
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$newRules[] = $rule; |
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} else { |
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$oldRules[] = $rule; |
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} |
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} |
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|
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// Update whitelist rules. |
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update_option( 'patchstack_whitelist_rules', json_encode( $oldRules ), true ); |
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update_option( 'patchstack_whitelist_rules_v3', json_encode( $newRules ), true ); |
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} |
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|
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// Update the whitelisted keys. |
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if ( isset( $results['whitelist_keys'] ) ) { |
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update_option( 'patchstack_whitelist_keys_rules', json_encode( $results['whitelist_keys'] ), true ); |
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} |
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} |
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} |
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|
