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<?php function siteguard_error_log( $message ) { $logfile = SITEGUARD_PATH . 'error.log'; $f = @fopen( $logfile, 'a+' ); if ( false != $f ) { fwrite( $f, date_i18n( 'Y/m/d H:i:s:' ) . $message . "\n" ); fclose( $f ); } } function siteguard_error_dump( $title, $obj ) { ob_start(); var_dump( $obj ); $msg = ob_get_contents(); ob_end_clean(); siteguard_error_log( "$title: $msg" ); } function siteguard_rand( $min = null, $max = null ) { $ret = 0; mt_srand(); if ( $min === null or $max === null ) { $ret = mt_rand(); } else { $ret = mt_rand( $min, $max ); } return $ret; } function siteguard_check_multisite() { if ( ! is_multisite() ) { return true; } $message = esc_html__( 'It does not support the multisite function of WordPress.', 'siteguard' ); $error = new WP_Error( 'siteguard', $message ); return $error; } class SiteGuard_Base { function __construct() { } function is_switch_value( $value ) { if ( '0' === $value || '1' === $value ) { return true; } return false; } function cvt_camma2ret( $value ) { $result = str_replace( ' ', '', $value ); return str_replace( ',', "\r\n", $result ); } function cvt_ret2camma( $exclude ) { $result = str_replace( ' ', '', $exclude ); $result = str_replace( ',', '', $result ); $result = preg_replace( '/(\r\n){2,}/', "\r\n", $result ); $result = preg_replace( '/\r\n$/', '', $result ); $result = str_replace( "\r\n", ',', $result ); $result = str_replace( "\r", ',', $result ); return str_replace( "\n", ',', $result ); } function check_module( $name, $default = false ) { return true; // It does not work WP-CLI // if ( isset( $_SERVER['SERVER_SOFTWARE'] ) ) { // return ( strpos( $_SERVER['SERVER_SOFTWARE'], 'Apache' ) !== false || strpos( $_SERVER['SERVER_SOFTWARE'], 'LiteSpeed' ) !== false); // } else { // return $default; // } // It does not work in FastCGI well. // $module = 'mod_' . $name; // return apache_mod_loaded( $module, $default ); // if ( function_exists('phpinfo') ) { // ob_start( ); // phpinfo(8); // $phpinfo = ob_get_clean( ); // if ( false !== strpos( $phpinfo, $module ) ) { // return true; // } // } // return $default; } function is_private_ip( $ip ) { $private_ips = array( '10.0.0.0,10.255.255.255', '172.16.0.0,172.31.255.255', '192.168.0.0,192.168.255.255', ); $long_ip = ip2long( $ip ); if ( -1 !== $long_ip && false !== $long_ip ) { $long_ip = sprintf( '%u', $long_ip ); foreach ( $private_ips as $private_ip ) { list( $start, $end ) = explode( ',', $private_ip ); $long_start = ip2long( $start ); $long_start = sprintf( '%u', $long_start ); $long_end = ip2long( $end ); $long_end = sprintf( '%u', $long_end ); if ( $long_ip >= $long_start && $long_ip <= $long_end ) { return true; } } } return false; } function get_server_ip() { if ( isset( $_SERVER['SERVER_ADDR'] ) ) { $ip = sanitize_text_field( $_SERVER['SERVER_ADDR'] ); if ( false === $this->is_private_ip( $ip ) ) { if ( preg_match( '/[0-9.:]+/', $ip ) ) { return $ip; } } } $url = 'http://inet-ip.info/ip'; $options = array( 'http' => array( 'method' => 'GET', 'timeout' => 2, ), ); $ip = file_get_contents( $url, false, stream_context_create( $options ) ); if ( false !== $ip ) { if ( preg_match( '/[0-9.:]+/', $ip ) ) { return $ip; } } $host = parse_url( home_url(), PHP_URL_HOST ); if ( false !== $host && null !== $host ) { putenv( 'RES_OPTIONS=retrans:1 retry:1 timeout:2 attempts:1' ); $ip = gethostbyname( $host ); if ( $ip !== $host ) { if ( '127.0.0.1' !== $ip && '::1' !== $ip ) { if ( preg_match( '/[0-9.:]+/', $ip ) ) { return $ip; } } } } return false; } function get_ip() { if ( ! isset( $_SERVER['REMOTE_ADDR'] ) || ! is_string( $_SERVER['REMOTE_ADDR'] ) || '' === $_SERVER['REMOTE_ADDR'] ) { throw new MyPluginBrokenEnvironment( 'Your webserver is misconfigured. REMOTE_ADDR is not set.' ); } return sanitize_text_field( $_SERVER['REMOTE_ADDR'] ); } }