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- //白名单相关操作
- function iswhitelist($host) {
- global $_G;
- static $iswhitelist = array();
- if(isset($iswhitelist[$host])) {
- return $iswhitelist[$host];
- }
- $hostlen = strlen($host);
- $iswhitelist[$host] = false;
- if(!$_G['cache']['domainwhitelist']) {
- loadcache('domainwhitelist');
- }
- if(is_array($_G['cache']['domainwhitelist'])) foreach($_G['cache']['domainwhitelist'] as $val) {
- $domainlen = strlen($val);
- if($domainlen > $hostlen) {
- continue;
- }
- if(substr($host, -$domainlen) == $val) {
- $iswhitelist[$host] = true;
- break;
- }
- }
- if($iswhitelist[$host] == false) {
- $iswhitelist[$host] = $host == $_SERVER['HTTP_HOST'];
- }
- return $iswhitelist[$host];
- }
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