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- <?
- function getRegisteredDomain($signingDomain) {
- global $tldTree;
- $signingDomainParts = explode('.', $signingDomain);
- $result = findRegisteredDomain($signingDomainParts, $tldTree);
- if ($result===NULL || $result=="") {
-
- return NULL;
- }
-
- if (!strpos($result, '.')) {
- $cnt = count($signingDomainParts);
- if ($cnt==1 || $signingDomainParts[$cnt-2]=="") return NULL;
- return $signingDomainParts[$cnt-2].'.'.$signingDomainParts[$cnt-1];
- }
- return $result;
- }
- function findRegisteredDomain($remainingSigningDomainParts, &$treeNode) {
- $sub = array_pop($remainingSigningDomainParts);
- $result = NULL;
- if (isset($treeNode['!'])) {
- return '#';
- } else if (is_array($treeNode) && array_key_exists($sub, $treeNode)) {
- $result = findRegisteredDomain($remainingSigningDomainParts, $treeNode[$sub]);
- } else if (is_array($treeNode) && array_key_exists('*', $treeNode)) {
- $result = findRegisteredDomain($remainingSigningDomainParts, $treeNode['*']);
- } else {
- return $sub;
- }
-
- if ($result == '#') {
- return $sub;
- } else if (strlen($result)>0) {
- return $result.'.'.$sub;
- }
- return NULL;
- }
- ?>
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