loginizer / functions.php

functions.php in Loginizer 1.3.2, at functions.php

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1	<?php
2
3	// Get the client IP
4	function _lz_getip(){
5	if(isset($_SERVER["REMOTE_ADDR"])){
6	return $_SERVER["REMOTE_ADDR"];
7	}elseif(isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
8	return $_SERVER["HTTP_X_FORWARDED_FOR"];
9	}elseif(isset($_SERVER["HTTP_CLIENT_IP"])){
10	return $_SERVER["HTTP_CLIENT_IP"];
11	}
12	}
13
14	// Get the client IP
15	function lz_getip(){
16
17	global $loginizer;
18
19	// Just so that we have something
20	$ip = _lz_getip();
21
22	$loginizer['ip_method'] = (int) @$loginizer['ip_method'];
23
24	if(isset($_SERVER["REMOTE_ADDR"])){
25	$ip = $_SERVER["REMOTE_ADDR"];
26	}
27
28	if(isset($_SERVER["HTTP_X_FORWARDED_FOR"]) && @$loginizer['ip_method'] == 1){
29	$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
30	}
31
32	if(isset($_SERVER["HTTP_CLIENT_IP"]) && @$loginizer['ip_method'] == 2){
33	$ip = $_SERVER["HTTP_CLIENT_IP"];
34	}
35
36	return $ip;
37
38	}
39
40	// Execute a select query and return an array
41	function lz_selectquery($query, $array = 0){
42	global $wpdb;
43
44	$result = $wpdb->get_results($query, 'ARRAY_A');
45
46	if(empty($array)){
47	return current($result);
48	}else{
49	return $result;
50	}
51	}
52
53	// Check if an IP is valid
54	function lz_valid_ip($ip){
55
56	if(!ip2long($ip)){
57	return false;
58	}
59	return true;
60	}
61
62	// Check if a field is posted via POST else return default value
63	function lz_optpost($name, $default = ''){
64
65	if(!empty($_POST[$name])){
66	return lz_inputsec(lz_htmlizer(trim($_POST[$name])));
67	}
68
69	return $default;
70	}
71
72	// Check if a field is posted via GET else return default value
73	function lz_optget($name, $default = ''){
74
75	if(!empty($_GET[$name])){
76	return lz_inputsec(lz_htmlizer(trim($_GET[$name])));
77	}
78
79	return $default;
80	}
81
82	// Check if a field is posted via GET or POST else return default value
83	function lz_optreq($name, $default = ''){
84
85	if(!empty($_REQUEST[$name])){
86	return lz_inputsec(lz_htmlizer(trim($_REQUEST[$name])));
87	}
88
89	return $default;
90	}
91
92	// For filling in posted values
93	function lz_POSTval($name, $default = ''){
94
95	return (!empty($_POST) ? (!isset($_POST[$name]) ? '' : $_POST[$name]) : $default);
96
97	}
98
99	function lz_POSTchecked($name, $default = false){
100
101	return (!empty($_POST) ? (isset($_POST[$name]) ? 'checked="checked"' : '') : (!empty($default) ? 'checked="checked"' : ''));
102
103	}
104
105	function lz_POSTselect($name, $value, $default = false){
106
107	if(empty($_POST)){
108	if(!empty($default)){
109	return 'selected="selected"';
110	}
111	}else{
112	if(isset($_POST[$name])){
113	if(trim($_POST[$name]) == $value){
114	return 'selected="selected"';
115	}
116	}
117	}
118
119	}
120
121	function lz_inputsec($string){
122
123	if(!get_magic_quotes_gpc()){
124
125	$string = addslashes($string);
126
127	}else{
128
129	$string = stripslashes($string);
130	$string = addslashes($string);
131
132	}
133
134	// This is to replace ` which can cause the command to be executed in exec()
135	$string = str_replace('`', '\`', $string);
136
137	return $string;
138
139	}
140
141	function lz_htmlizer($string){
142
143	$string = htmlentities($string, ENT_QUOTES, 'UTF-8');
144
145	preg_match_all('/(&#(\d{1,7}\|x[0-9a-fA-F]{1,6});)/', $string, $matches);//r_print($matches);
146
147	foreach($matches[1] as $mk => $mv){
148	$tmp_m = lz_entity_check($matches[2][$mk]);
149	$string = str_replace($matches[1][$mk], $tmp_m, $string);
150	}
151
152	return $string;
153
154	}
155
156	function lz_entity_check($string){
157
158	//Convert Hexadecimal to Decimal
159	$num = ((substr($string, 0, 1) === 'x') ? hexdec(substr($string, 1)) : (int) $string);
160
161	//Squares and Spaces - return nothing
162	$string = (($num > 0x10FFFF \|\| ($num >= 0xD800 && $num <= 0xDFFF) \|\| $num < 0x20) ? '' : '&#'.$num.';');
163
164	return $string;
165
166	}
167
168	// Check if a checkbox is selected
169	function lz_is_checked($post){
170
171	if(!empty($_POST[$post])){
172	return true;
173	}
174	return false;
175	}
176
177	// Reoort an error
178	function lz_report_error($error = array()){
179
180	if(empty($error)){
181	return true;
182	}
183
184	$error_string = '<b>Please fix the below error(s) :</b> <br />';
185
186	foreach($error as $ek => $ev){
187	$error_string .= '* '.$ev.'<br />';
188	}
189
190	echo '<div id="message" class="error"><p>'
191	. __($error_string, 'loginizer')
192	. '</p></div>';
193	}
194
195	// Report a notice
196	function lz_report_notice($notice = array()){
197
198	global $wp_version;
199
200	if(empty($notice)){
201	return true;
202	}
203
204	// Which class do we have to use ?
205	if(version_compare($wp_version, '3.8', '<')){
206	$notice_class = 'updated';
207	}else{
208	$notice_class = 'updated';
209	}
210
211	$notice_string = '<b>Please check the below notice(s) :</b> <br />';
212
213	foreach($notice as $ek => $ev){
214	$notice_string .= '* '.$ev.'<br />';
215	}
216
217	echo '<div id="message" class="'.$notice_class.'"><p>'
218	. __($notice_string, 'loginizer')
219	. '</p></div>';
220	}
221
222	// Convert an objext to array
223	function lz_objectToArray($d){
224
225	if(is_object($d)){
226	$d = get_object_vars($d);
227	}
228
229	if(is_array($d)){
230	return array_map(__FUNCTION__, $d); // recursive
231	}elseif(is_object($d)){
232	return lz_objectToArray($d);
233	}else{
234	return $d;
235	}
236	}
237
238	// Sanitize variables
239	function lz_sanitize_variables($variables = array()){
240
241	if(is_array($variables)){
242	foreach($variables as $k => $v){
243	$variables[$k] = trim($v);
244	$variables[$k] = escapeshellcmd($v);
245	}
246	}else{
247	$variables = escapeshellcmd(trim($variables));
248	}
249
250	return $variables;
251	}
252
253	// Is multisite ?
254	function lz_is_multisite() {
255
256	if(function_exists('get_site_option') && function_exists('is_multisite') && is_multisite()){
257	return true;
258	}
259
260	return false;
261	}
262
263	// Generate a random string
264	function lz_RandomString($length = 10){
265	$characters = '0123456789abcdefghijklmnopqrstuvwxyz';
266	$charactersLength = strlen($characters);
267	$randomString = '';
268	for($i = 0; $i < $length; $i++){
269	$randomString .= $characters[rand(0, $charactersLength - 1)];
270	}
271	return $randomString;
272	}
273
274	function lz_print($array){
275
276	echo '<pre>';
277	print_r($array);
278	echo '</pre>';
279
280	}
281
282	function lz_cleanpath($path){
283	$path = str_replace('\\\\', '/', $path);
284	$path = str_replace('\\', '/', $path);
285	$path = str_replace('//', '/', $path);
286	return rtrim($path, '/');
287	}
288
289	// Returns the Numeric Value of results Per Page
290	function lz_get_page($get = 'page', $resperpage = 50){
291
292	$resperpage = (!empty($_REQUEST['reslen']) && is_numeric($_REQUEST['reslen']) ? (int) lz_optreq('reslen') : $resperpage);
293
294	if(lz_optget($get)){
295	$pg = (int) lz_optget($get);
296	$pg = $pg - 1;
297	$page = ($pg * $resperpage);
298	$page = ($page <= 0 ? 0 : $page);
299	}else{
300	$page = 0;
301	}
302	return $page;
303	}
304
305