add complete list of nameserver-ips and given axfr-servers to allow-axfr-ips list for PowerDNS; fixes #985

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>
This commit is contained in:
Michael Kaufmann
2021-10-14 19:07:05 +02:00
parent 37ae69f07a
commit 4ad2a1da1c
9 changed files with 64 additions and 20 deletions

View File

@@ -341,13 +341,43 @@ class ConfigServicesAction extends \Froxlor\Cli\Action
// try to convert namserver hosts to ip's
$ns_ips = "";
$known_ns_ips = [];
if (Settings::Get('system.nameservers') != '') {
$nameservers = explode(',', Settings::Get('system.nameservers'));
foreach ($nameservers as $nameserver) {
$nameserver = trim($nameserver);
// DNS servers might be multi homed; allow transfer from all ip
// addresses of the DNS server
$nameserver_ips = \Froxlor\PhpHelper::gethostbynamel6($nameserver);
if (is_array($nameserver_ips) && count($nameserver_ips) > 0) {
$ns_ips .= implode(",", $nameserver_ips);
// append dot to hostname
if (substr($nameserver, - 1, 1) != '.') {
$nameserver .= '.';
}
// ignore invalid responses
if (! is_array($nameserver_ips)) {
// act like \Froxlor\PhpHelper::gethostbynamel6() and return unmodified hostname on error
$nameserver_ips = array(
$nameserver
);
} else {
$known_ns_ips = array_merge($known_ns_ips, $nameserver_ips);
}
if (!empty($ns_ips)) {
$ns_ips .= ',';
}
$ns_ips .= implode(",", $nameserver_ips);
}
}
// AXFR server
if (Settings::Get('system.axfrservers') != '') {
$axfrservers = explode(',', Settings::Get('system.axfrservers'));
foreach ($axfrservers as $axfrserver) {
if (!in_array(trim($axfrserver), $known_ns_ips)) {
if (!empty($ns_ips)) {
$ns_ips .= ',';
}
$ns_ips .= trim($axfrserver);
}
}
}
@@ -365,7 +395,6 @@ class ConfigServicesAction extends \Froxlor\Cli\Action
'<SERVERIP>' => Settings::Get('system.ipaddress'),
'<NAMESERVERS>' => Settings::Get('system.nameservers'),
'<NAMESERVERS_IP>' => $ns_ips,
'<AXFRSERVERS>' => Settings::Get('system.axfrservers'),
'<VIRTUAL_MAILBOX_BASE>' => Settings::Get('system.vmail_homedir'),
'<VIRTUAL_UID_MAPS>' => Settings::Get('system.vmail_uid'),
'<VIRTUAL_GID_MAPS>' => Settings::Get('system.vmail_gid'),