131 lines
3.2 KiB
PHP
131 lines
3.2 KiB
PHP
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<?php
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/**
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* Geolocation class.
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*
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* Handles geolocation and updating the geolocation database.
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*
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* This product uses GeoLite2 data created by MaxMind, available from http://www.maxmind.com
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*
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* @author WooThemes
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* @category Admin
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* @package WooCommerce/Classes
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* @version 2.3.0
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*/
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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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}
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/**
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* WC_Geolocation Class
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*/
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class WC_Geolocation {
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/** URL to the geolocation database we're using */
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const GEOLITE_DB = 'http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz';
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/**
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* Hook in tabs.
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*/
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public static function init() {
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add_action( 'woocommerce_geoip_updater', array( __CLASS__, 'update_database' ) );
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}
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/**
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* Update geoip database. Adapted from https://wordpress.org/plugins/geoip-detect/.
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*/
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public static function update_database() {
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require_once( ABSPATH . 'wp-admin/includes/file.php' );
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$upload_dir = wp_upload_dir();
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$database = $upload_dir['basedir'] . '/GeoIP.dat';
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$tmp_database = download_url( self::GEOLITE_DB );
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$logger = new WC_Logger();
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if ( ! is_wp_error( $tmp_database ) ) {
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$gzhandle = @gzopen( $tmp_database, 'r' );
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$handle = @fopen( $database, 'w' );
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if ( $gzhandle && $handle ) {
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while ( ( $string = gzread( $gzhandle, 4096 ) ) != false ) {
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fwrite( $handle, $string, strlen( $string ) );
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}
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gzclose( $gzhandle );
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fclose( $handle );
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} else {
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$logger->add( 'geolocation', 'Unable to open database file' );
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}
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@unlink( $tmp_database );
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} else {
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$logger->add( 'geolocation', 'Unable to download GeoIP Database: ' . $tmp_database->get_message() );
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}
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}
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/**
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* Geolocation an IP address
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* @param string $ip_address
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* @return array
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*/
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public static function geolocate_ip( $ip_address ) {
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$country_code = self::geolite_geolocation( $ip_address );
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// Fallback to API
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if ( empty( $country_code ) ) {
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$country_code = self::freegeoip_geolocation( $ip_address );
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}
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return array(
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'country' => $country_code,
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'state' => ''
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);
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}
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/**
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* Use MAXMIND GeoLite database to geolocation the user.
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* @param string $ip_address
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* @return string
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*/
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private static function geolite_geolocation( $ip_address ) {
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$country_code = '';
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$upload_dir = wp_upload_dir();
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$database = $upload_dir['basedir'] . '/GeoIP.dat';
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if ( file_exists( $database ) ) {
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if ( ! class_exists( 'GeoIP' ) ) {
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include_once( 'libraries/geoip.php' );
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}
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$gi = geoip_open( $database, GEOIP_STANDARD );
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$country_code = geoip_country_code_by_addr( $gi, $ip_address );
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geoip_close( $gi );
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}
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return $country_code;
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}
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/**
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* Use freegeoip.net
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* @param string $ip_address
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* @return string
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*/
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private static function freegeoip_geolocation( $ip_address ) {
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$country_code = get_transient( 'geoip_' . $ip_address );
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if ( false === $country_code ) {
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$json_geo_ip = wp_remote_get( 'https://freegeoip.net/json/' . $ip_address );
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if ( ! is_wp_error( $json_geo_ip ) ) {
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$data = json_decode( $json_geo_ip['body'] );
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$country_code = sanitize_text_field( $data->country_code );
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set_transient( 'geoip_' . $ip_address, $country_code, WEEK_IN_SECONDS );
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} else {
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$country_code = '';
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}
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}
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return $country_code;
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}
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}
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WC_Geolocation::init();
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