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be570d1c7d
The `TransportDirect` transport allows to tweak outgoing SMTP
connections to remote servers. Currently, it only allows to select
network IP family (ipv4, ipv6 or both).
For example, to disable ipv6 for all outgoing SMTP connections:
- add these lines in mox.conf to create a new transport named
"disableipv6":
```
Transports:
disableipv6:
Direct:
DisableIpv6: true
```
- then add these lines in domains.conf to use this transport:
```
Routes:
-
Transport: disableipv6
```
fix #149
57 lines
2 KiB
Go
57 lines
2 KiB
Go
package smtpclient
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import (
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"context"
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"net"
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"reflect"
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"testing"
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"time"
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"github.com/mjl-/mox/dns"
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"github.com/mjl-/mox/mlog"
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)
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func TestDialHost(t *testing.T) {
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// We mostly want to test that dialing a second time switches to the other address family.
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ctxbg := context.Background()
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log := mlog.New("smtpclient", nil)
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resolver := dns.MockResolver{
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A: map[string][]string{
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"dualstack.example.": {"10.0.0.1"},
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},
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AAAA: map[string][]string{
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"dualstack.example.": {"2001:db8::1"},
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},
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}
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DialHook = func(ctx context.Context, dialer Dialer, timeout time.Duration, addr string, laddr net.Addr) (net.Conn, error) {
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return nil, nil // No error, nil connection isn't used.
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}
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defer func() {
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DialHook = nil
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}()
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ipdomain := func(s string) dns.IPDomain {
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return dns.IPDomain{Domain: dns.Domain{ASCII: s}}
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}
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dialedIPs := map[string][]net.IP{}
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_, _, _, ips, dualstack, err := GatherIPs(ctxbg, log.Logger, resolver, "ip", ipdomain("dualstack.example"), dialedIPs)
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if err != nil || !reflect.DeepEqual(ips, []net.IP{net.ParseIP("10.0.0.1"), net.ParseIP("2001:db8::1")}) || !dualstack {
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t.Fatalf("expected err nil, address 10.0.0.1,2001:db8::1, dualstack true, got %v %v %v", err, ips, dualstack)
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}
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_, ip, err := Dial(ctxbg, log.Logger, nil, ipdomain("dualstack.example"), ips, 25, dialedIPs, nil)
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if err != nil || ip.String() != "10.0.0.1" {
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t.Fatalf("expected err nil, address 10.0.0.1, dualstack true, got %v %v %v", err, ip, dualstack)
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}
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_, _, _, ips, dualstack, err = GatherIPs(ctxbg, log.Logger, resolver, "ip", ipdomain("dualstack.example"), dialedIPs)
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if err != nil || !reflect.DeepEqual(ips, []net.IP{net.ParseIP("2001:db8::1"), net.ParseIP("10.0.0.1")}) || !dualstack {
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t.Fatalf("expected err nil, address 2001:db8::1,10.0.0.1, dualstack true, got %v %v %v", err, ips, dualstack)
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}
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_, ip, err = Dial(ctxbg, log.Logger, nil, ipdomain("dualstack.example"), ips, 25, dialedIPs, nil)
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if err != nil || ip.String() != "2001:db8::1" {
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t.Fatalf("expected err nil, address 2001:db8::1, dualstack true, got %v %v %v", err, ip, dualstack)
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}
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}
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