132 lines
4.6 KiB
PHP
132 lines
4.6 KiB
PHP
<?php
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function isMobile() {
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// 如果有HTTP_X_WAP_PROFILE则一定是移动设备
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if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
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return true;
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}
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// 如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
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if (isset($_SERVER['HTTP_VIA'])) {
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// 找不到为flase,否则为true
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return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
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}
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// 判断手机发送的客户端标志,兼容性有待提高。其中'MicroMessenger'是电脑微信
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if (isset($_SERVER['HTTP_USER_AGENT'])) {
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$clientkeywords = array(
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'nokia',
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'sony',
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'ericsson',
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'mot',
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'samsung',
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'htc',
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'sgh',
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'lg',
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'sharp',
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'sie-',
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'philips',
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'panasonic',
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'alcatel',
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'lenovo',
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'iphone',
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'ipod',
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'blackberry',
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'meizu',
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'android',
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'netfront',
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'symbian',
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'ucweb',
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'windowsce',
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'palm',
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'operamini',
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'operamobi',
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'openwave',
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'nexusone',
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'cldc',
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'midp',
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'wap',
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'mobile',
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'MicroMessenger'
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);
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// 从HTTP_USER_AGENT中查找手机浏览器的关键字
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if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
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return true;
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}
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}
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// 协议法，因为有可能不准确，放到最后判断
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if (isset($_SERVER['HTTP_ACCEPT'])) {
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// 如果只支持wml并且不支持html那一定是移动设备
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// 如果支持wml和html但是wml在html之前则是移动设备
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if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {
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return true;
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}
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}
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return false;
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}
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if (ismobile() == true) {
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$ua = 'wap';
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} else {
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$ua = 'pc';
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}
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function daddslashes($string) {
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if (is_array($string)) {
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foreach ($string as $key => $val) {
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$string[$key] = daddslashes($val, $force, $strip);
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}
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} else {
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$string = addslashes($strip ? stripslashes($string) : $string);
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}
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return $string;
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}
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function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
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$ckey_length = 4;
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$key = md5($key ? $key : ENCRYPT_KEY);
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$keya = md5(substr($key, 0, 16));
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$keyb = md5(substr($key, 16, 16));
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$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length) : substr(md5(microtime()) , -$ckey_length)) : '';
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$cryptkey = $keya . md5($keya . $keyc);
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$key_length = strlen($cryptkey);
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$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0) . substr(md5($string . $keyb) , 0, 16) . $string;
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$string_length = strlen($string);
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$result = '';
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$box = range(0, 255);
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$rndkey = array();
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for ($i = 0; $i <= 255; $i++) {
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$rndkey[$i] = ord($cryptkey[$i % $key_length]);
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}
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for ($j = $i = 0; $i < 256; $i++) {
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$j = ($j + $box[$i] + $rndkey[$i]) % 256;
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$tmp = $box[$i];
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$box[$i] = $box[$j];
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$box[$j] = $tmp;
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}
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for ($a = $j = $i = 0; $i < $string_length; $i++) {
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$a = ($a + 1) % 256;
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$j = ($j + $box[$a]) % 256;
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$tmp = $box[$a];
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$box[$a] = $box[$j];
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$box[$j] = $tmp;
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$result.= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
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}
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if ($operation == 'DECODE') {
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if ((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26) . $keyb) , 0, 16)) {
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return substr($result, 26);
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} else {
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return '';
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}
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} else {
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return $keyc . str_replace('=', '', base64_encode($result));
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}
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}
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function update() {
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$update_host = 'cdn.lylme.com'; //程序更新服务器,请勿删除和修改，否则将导致无法接收版本更新和报错
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@$update = json_decode(file_get_contents('https://' . $update_host . '/lylmes_page/update.json') , true);
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return $update;
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}
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function getver($ver) {
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$vn = explode('.', str_replace('v', '', $ver));
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return $vn[0] . sprintf("%02d", $vn[1]) . sprintf("%02d", $vn[2]);
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}
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function saveSetting($k, $v) {
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$v = daddslashes($v);
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return $DB->query("UPDATE `lylme_config` SET `v` = '$v' WHERE `lylme_config`.`k` = '$k';");
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}
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?>
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