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Improve local IP detection

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Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
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Côme Chilliet 2022-06-27 16:48:58 +02:00 committed by Côme Chilliet (Rebase PR Action)
parent b2017cd557
commit bd9aff47b6
1 changed files with 6 additions and 0 deletions
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6
lib/private/Http/Client/LocalAddressChecker.php
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@ -41,6 +41,12 @@ class LocalAddressChecker {
throw new LocalServerException('Host violates local access rules');
}
$localIps = ['100.100.100.200'];
if ((bool)filter_var($ip, FILTER_VALIDATE_IP) && in_array($ip, $localIps)) {
$this->logger->warning("Host $ip was not connected to because it violates local access rules");
throw new LocalServerException('Host violates local access rules');
}
// Also check for IPv6 IPv4 nesting, because that's not covered by filter_var
if ((bool)filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) && substr_count($ip, '.') > 0) {
$delimiter = strrpos($ip, ':'); // Get last colon