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replace listener config option IPsNATed with NATIPs, and let autotls check NATIPs

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NATIPs lists the public IPs, so we can still do the DNS checks on them. with
IPsNATed, we disabled the checks.

based on feedback by kikoreis in issue #52
This commit is contained in:
Mechiel Lukkien
2023-08-11 10:13:17 +02:00
parent d7df70acd8
commit 55d05c6bea
6 changed files with 82 additions and 19 deletions
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21
mox-/config.go
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@ -272,7 +272,15 @@ func (c *Config) allowACMEHosts(checkACMEHosts bool) {
}
}
m.SetAllowedHostnames(dns.StrictResolver{Pkg: "autotls"}, hostnames, c.Static.Listeners["public"].IPs, checkACMEHosts)
public := c.Static.Listeners["public"]
ips := public.IPs
if len(public.NATIPs) > 0 {
ips = public.NATIPs
}
if public.IPsNATed {
ips = nil
}
m.SetAllowedHostnames(dns.StrictResolver{Pkg: "autotls"}, hostnames, ips, checkACMEHosts)
}
}
@ -629,6 +637,17 @@ func PrepareStaticConfig(ctx context.Context, configFile string, conf *Config, c
}
l.SMTP.DNSBLZones = append(l.SMTP.DNSBLZones, d)
}
if l.IPsNATed && len(l.NATIPs) > 0 {
addErrorf("listener %q has both IPsNATed and NATIPs (remove deprecated IPsNATed)", name)
}
for _, ipstr := range l.NATIPs {
ip := net.ParseIP(ipstr)
if ip == nil {
addErrorf("listener %q has invalid ip %q", name, ipstr)
} else if ip.IsUnspecified() || ip.IsLoopback() {
addErrorf("listener %q has NAT ip that is the unspecified or loopback address %s", name, ipstr)
}
}
checkPath := func(kind string, enabled bool, path string) {
if enabled && path != "" && !strings.HasPrefix(path, "/") {
addErrorf("listener %q has %s with path %q that must start with a slash", name, kind, path)