Check if dns_get_record returns non-false

`dns_get_record` can return false which results in exceptions such as the ones shown in #27870. Signed-off-by: Lukas Reschke <[email protected]>
nextcloud · Jul 12, 2021 · b0cef88 · b0cef88
1 parent a8aeaa6
commit b0cef88
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/private/Http/Client/DnsPinMiddleware.php b/lib/private/Http/Client/DnsPinMiddleware.php
@@ -82,7 +82,7 @@ private function dnsResolve(string $target, int $recursionCount) : array {
 
 			$dnsResponses = dns_get_record($target, $dnsType);
 			$canHaveCnameRecord = true;
-			if (count($dnsResponses) > 0) {
+			if ($dnsResponses && count($dnsResponses) > 0) {
 				foreach ($dnsResponses as $dnsResponse) {
 					if (isset($dnsResponse['ip'])) {
 						$targetIps[] = $dnsResponse['ip'];