siteguard-base.php — SiteGuard WP Plugin 1.7.7

siteguard / classes / siteguard-base.php

siteguard / classes Last commit date

siteguard-base.php

156 lines

1	<?php
2
3	function siteguard_error_log( $message ) {
4	$logfile = SITEGUARD_PATH . 'error.log';
5	$f = @fopen( $logfile, 'a+' );
6	if ( false != $f ) {
7	fwrite( $f, date_i18n( 'Y/m/d H:i:s:' ) . $message . "\n" );
8	fclose( $f );
9	}
10	}
11
12	function siteguard_error_dump( $title, $obj ) {
13	ob_start();
14	var_dump( $obj );
15	$msg = ob_get_contents();
16	ob_end_clean();
17	siteguard_error_log( "$title: $msg" );
18	}
19
20	function siteguard_rand( $min = null, $max = null ) {
21	$ret = 0;
22	mt_srand();
23	if ( $min === null or $max === null ) {
24	$ret = mt_rand();
25	} else {
26	$ret = mt_rand( $min, $max );
27	}
28	return $ret;
29	}
30
31	function siteguard_check_multisite() {
32	if ( ! is_multisite() ) {
33	return true;
34	}
35	$message = esc_html__( 'It does not support the multisite function of WordPress.', 'siteguard' );
36	$error = new WP_Error( 'siteguard', $message );
37	return $error;
38	}
39
40	class SiteGuard_Base {
41	function __construct() {
42	}
43	function is_switch_value( $value ) {
44	if ( '0' === $value \|\| '1' === $value ) {
45	return true;
46	}
47	return false;
48	}
49	function cvt_camma2ret( $value ) {
50	$result = str_replace( ' ', '', $value );
51	return str_replace( ',', "\r\n", $result );
52	}
53	function cvt_ret2camma( $exclude ) {
54	$result = str_replace( ' ', '', $exclude );
55	$result = str_replace( ',', '', $result );
56	$result = preg_replace( '/(\r\n){2,}/', "\r\n", $result );
57	$result = preg_replace( '/\r\n$/', '', $result );
58	$result = str_replace( "\r\n", ',', $result );
59	$result = str_replace( "\r", ',', $result );
60	return str_replace( "\n", ',', $result );
61	}
62	function check_module( $name, $default = false ) {
63	return true;
64	// It does not work WP-CLI
65	// if ( isset( $_SERVER['SERVER_SOFTWARE'] ) ) {
66	// return ( strpos( $_SERVER['SERVER_SOFTWARE'], 'Apache' ) !== false \|\| strpos( $_SERVER['SERVER_SOFTWARE'], 'LiteSpeed' ) !== false);
67	// } else {
68	// return $default;
69	// }
70
71	// It does not work in FastCGI well.
72	// $module = 'mod_' . $name;
73	// return apache_mod_loaded( $module, $default );
74	// if ( function_exists('phpinfo') ) {
75	// ob_start( );
76	// phpinfo(8);
77	// $phpinfo = ob_get_clean( );
78	// if ( false !== strpos( $phpinfo, $module ) ) {
79	// return true;
80	// }
81	// }
82	// return $default;
83	}
84	function is_private_ip( $ip ) {
85	$private_ips = array(
86	'10.0.0.0,10.255.255.255',
87	'172.16.0.0,172.31.255.255',
88	'192.168.0.0,192.168.255.255',
89	);
90
91	$long_ip = ip2long( $ip );
92	if ( -1 !== $long_ip && false !== $long_ip ) {
93	$long_ip = sprintf( '%u', $long_ip );
94	foreach ( $private_ips as $private_ip ) {
95	list( $start, $end ) = explode( ',', $private_ip );
96	$long_start = ip2long( $start );
97	$long_start = sprintf( '%u', $long_start );
98	$long_end = ip2long( $end );
99	$long_end = sprintf( '%u', $long_end );
100	if ( $long_ip >= $long_start && $long_ip <= $long_end ) {
101	return true;
102	}
103	}
104	}
105	return false;
106	}
107	function get_server_ip() {
108	if ( isset( $_SERVER['SERVER_ADDR'] ) ) {
109	$ip = sanitize_text_field( $_SERVER['SERVER_ADDR'] );
110	if ( false === $this->is_private_ip( $ip ) ) {
111	if ( preg_match( '/[0-9.:]+/', $ip ) ) {
112	return $ip;
113	}
114	}
115	}
116
117	$url = 'http://inet-ip.info/ip';
118	$options = array(
119	'http' => array(
120	'method' => 'GET',
121	'timeout' => 2,
122	),
123	);
124	$ip = file_get_contents( $url, false, stream_context_create( $options ) );
125	if ( false !== $ip ) {
126	if ( preg_match( '/[0-9.:]+/', $ip ) ) {
127	return $ip;
128	}
129	}
130
131	$host = parse_url( home_url(), PHP_URL_HOST );
132	if ( false !== $host && null !== $host ) {
133	putenv( 'RES_OPTIONS=retrans:1 retry:1 timeout:2 attempts:1' );
134	$ip = gethostbyname( $host );
135	if ( $ip !== $host ) {
136	if ( '127.0.0.1' !== $ip && '::1' !== $ip ) {
137	if ( preg_match( '/[0-9.:]+/', $ip ) ) {
138	return $ip;
139	}
140	}
141	}
142	}
143	return false;
144	}
145	function get_ip() {
146	if (
147	! isset( $_SERVER['REMOTE_ADDR'] )
148	\|\| ! is_string( $_SERVER['REMOTE_ADDR'] )
149	\|\| '' === $_SERVER['REMOTE_ADDR']
150	) {
151	throw new MyPluginBrokenEnvironment( 'Your webserver is misconfigured. REMOTE_ADDR is not set.' );
152	}
153	return sanitize_text_field( $_SERVER['REMOTE_ADDR'] );
154	}
155	}
156