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<?php require_once __DIR__ . '/modules/wordpress.php'; require_once __DIR__ . '/models/canonical.php'; require_once __DIR__ . '/database/database-status.php'; /** * This powers all of the front-end redirecting / class Redirection { /* * Instance variable * * @var Redirection\|null / private static $instance = null; /* * WordPress module * * @var WordPress_Module\|null / private $module = null; /* * Singleton * * @return Redirection / public static function init() { if ( is_null( self::$instance ) ) { self::$instance = new Redirection(); } return self::$instance; } /* * Constructor / public function __construct() { if ( ! $this->can_start() ) { return; } $this->module = Red_Module::get( WordPress_Module::MODULE_ID ); if ( $this->module ) { $this->module->start(); } add_action( Red_Flusher::DELETE_HOOK, array( $this, 'clean_redirection_logs' ) ); add_filter( 'redirection_url_target', [ $this, 'transform_url' ] ); $options = red_get_options(); if ( $options['ip_logging'] === 0 ) { add_filter( 'redirection_request_ip', array( $this, 'no_ip_logging' ) ); } elseif ( $options['ip_logging'] === 2 ) { add_filter( 'redirection_request_ip', array( $this, 'mask_ip' ) ); } } public function transform_url( $url ) { $transformer = new Red_Url_Transform(); return $transformer->transform( $url ); } /* * Check if Redirection can run. We require the database to be installed. * * @return boolean / public function can_start() { $status = new Red_Database_Status(); if ( $status->needs_installing() ) { return false; } return true; } /* * Override the IP with an empty value * * @param String $ip IP. * @return String / public function no_ip_logging( $ip ) { return ''; } /* * Override the IP with a masked IP * * @param String $ip IP. * @return String / public function mask_ip( $ip ) { $ip = trim( $ip ); if ( strpos( $ip, ':' ) !== false ) { // phpcs:ignore $ip = @inet_pton( trim( $ip ) ); // phpcs:ignore return @inet_ntop( $ip & pack( 'a16', 'ffff:ffff:ffff:ffff::ff00::0000::0000::0000' ) ); } $parts = []; if ( strlen( $ip ) > 0 ) { $parts = explode( '.', $ip ); } if ( count( $parts ) > 0 ) { $parts[ count( $parts ) - 1 ] = 0; } return implode( '.', $parts ); } /* * Hook to flush the logs * * @return void / public function clean_redirection_logs() { $flusher = new Red_Flusher(); $flusher->flush(); } /* * Used for unit tests * * @return WordPress_Module\|null */ public function get_module() { return $this->module; } } add_action( 'plugins_loaded', array( 'Redirection', 'init' ) );