mirror of
https://github.com/mjl-/mox.git
synced 2024-12-25 16:03:48 +03:00
5b20cba50a
we don't want external software to include internal details like mlog. slog.Logger is/will be the standard. we still have mlog for its helper functions, and its handler that logs in concise logfmt used by mox. packages that are not meant for reuse still pass around mlog.Log for convenience. we use golang.org/x/exp/slog because we also support the previous Go toolchain version. with the next Go release, we'll switch to the builtin slog.
523 lines
22 KiB
Go
523 lines
22 KiB
Go
package spf
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"reflect"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/mjl-/mox/dns"
|
|
"github.com/mjl-/mox/mlog"
|
|
"github.com/mjl-/mox/smtp"
|
|
)
|
|
|
|
var pkglog = mlog.New("spf", nil)
|
|
|
|
func TestLookup(t *testing.T) {
|
|
resolver := dns.MockResolver{
|
|
TXT: map[string][]string{
|
|
"temperror.example.": {"irrelevant"},
|
|
"malformed.example.": {"v=spf1 !"},
|
|
"multiple.example.": {"v=spf1", "v=spf1"},
|
|
"nonspf.example.": {"something else"},
|
|
"ok.example.": {"v=spf1"},
|
|
},
|
|
Fail: []string{
|
|
"txt temperror.example.",
|
|
},
|
|
}
|
|
|
|
test := func(domain string, expStatus Status, expRecord *Record, expErr error) {
|
|
t.Helper()
|
|
|
|
d := dns.Domain{ASCII: domain}
|
|
status, txt, record, _, err := Lookup(context.Background(), pkglog.Logger, resolver, d)
|
|
if (err == nil) != (expErr == nil) || err != nil && !errors.Is(err, expErr) {
|
|
t.Fatalf("got err %v, expected err %v", err, expErr)
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if status != expStatus || txt == "" || !reflect.DeepEqual(record, expRecord) {
|
|
t.Fatalf("got status %q, txt %q, record %#v, expected %q, ..., %#v", status, txt, record, expStatus, expRecord)
|
|
}
|
|
}
|
|
|
|
test("..", StatusNone, nil, ErrName)
|
|
test("absent.example", StatusNone, nil, ErrNoRecord)
|
|
test("temperror.example", StatusTemperror, nil, ErrDNS)
|
|
test("malformed.example", StatusPermerror, nil, ErrRecordSyntax)
|
|
test("multiple.example", StatusPermerror, nil, ErrMultipleRecords)
|
|
test("nonspf.example", StatusNone, nil, ErrNoRecord)
|
|
test("ok.example", StatusNone, &Record{Version: "spf1"}, nil)
|
|
}
|
|
|
|
func TestExpand(t *testing.T) {
|
|
defArgs := Args{
|
|
senderLocalpart: "strong-bad",
|
|
senderDomain: dns.Domain{ASCII: "email.example.com"},
|
|
domain: dns.Domain{ASCII: "email.example.com"},
|
|
|
|
MailFromLocalpart: "x",
|
|
MailFromDomain: dns.Domain{ASCII: "mox.example"},
|
|
HelloDomain: dns.IPDomain{Domain: dns.Domain{ASCII: "mx.mox.example"}},
|
|
LocalIP: net.ParseIP("10.10.10.10"),
|
|
LocalHostname: dns.Domain{ASCII: "self.example"},
|
|
}
|
|
|
|
resolver := dns.MockResolver{
|
|
PTR: map[string][]string{
|
|
"10.0.0.1": {"other.example.", "sub.mx.mox.example.", "mx.mox.example."},
|
|
"10.0.0.2": {"other.example.", "sub.mx.mox.example.", "mx.mox.example."},
|
|
"10.0.0.3": {"other.example.", "sub.mx.mox.example.", "mx.mox.example."},
|
|
},
|
|
A: map[string][]string{
|
|
"mx.mox.example.": {"10.0.0.1"},
|
|
"sub.mx.mox.example.": {"10.0.0.2"},
|
|
"other.example.": {"10.0.0.3"},
|
|
},
|
|
}
|
|
|
|
mustParseIP := func(s string) net.IP {
|
|
ip := net.ParseIP(s)
|
|
if ip == nil {
|
|
t.Fatalf("bad ip %q", s)
|
|
}
|
|
return ip
|
|
}
|
|
|
|
ctx := context.Background()
|
|
|
|
// Examples from ../rfc/7208:1777
|
|
test := func(dns bool, macro, ip, exp string) {
|
|
t.Helper()
|
|
|
|
args := defArgs
|
|
args.dnsRequests = new(int)
|
|
args.voidLookups = new(int)
|
|
if ip != "" {
|
|
args.RemoteIP = mustParseIP(ip)
|
|
}
|
|
|
|
r, _, err := expandDomainSpec(ctx, resolver, macro, args, dns)
|
|
if (err == nil) != (exp != "") {
|
|
t.Fatalf("got err %v, expected expansion %q, for macro %q", err, exp, macro)
|
|
}
|
|
if r != exp {
|
|
t.Fatalf("got expansion %q, expected %q, for macro %q", r, exp, macro)
|
|
}
|
|
}
|
|
|
|
testDNS := func(macro, ip, exp string) {
|
|
t.Helper()
|
|
test(true, macro, ip, exp)
|
|
}
|
|
|
|
testExpl := func(macro, ip, exp string) {
|
|
t.Helper()
|
|
test(false, macro, ip, exp)
|
|
}
|
|
|
|
testDNS("%{s}", "", "strong-bad@email.example.com")
|
|
testDNS("%{o}", "", "email.example.com")
|
|
testDNS("%{d}", "", "email.example.com")
|
|
testDNS("%{d4}", "", "email.example.com")
|
|
testDNS("%{d3}", "", "email.example.com")
|
|
testDNS("%{d2}", "", "example.com")
|
|
testDNS("%{d1}", "", "com")
|
|
testDNS("%{dr}", "", "com.example.email")
|
|
testDNS("%{d2r}", "", "example.email")
|
|
testDNS("%{l}", "", "strong-bad")
|
|
testDNS("%{l-}", "", "strong.bad")
|
|
testDNS("%{lr}", "", "strong-bad")
|
|
testDNS("%{lr-}", "", "bad.strong")
|
|
testDNS("%{l1r-}", "", "strong")
|
|
|
|
testDNS("%", "", "")
|
|
testDNS("%b", "", "")
|
|
testDNS("%{", "", "")
|
|
testDNS("%{s", "", "")
|
|
testDNS("%{s1", "", "")
|
|
testDNS("%{s0}", "", "")
|
|
testDNS("%{s1r", "", "")
|
|
testDNS("%{s99999999999999999999999999999999999999999999999999999999999999999999999}", "", "")
|
|
|
|
testDNS("%{ir}.%{v}._spf.%{d2}", "192.0.2.3", "3.2.0.192.in-addr._spf.example.com")
|
|
testDNS("%{lr-}.lp._spf.%{d2}", "192.0.2.3", "bad.strong.lp._spf.example.com")
|
|
testDNS("%{lr-}.lp.%{ir}.%{v}._spf.%{d2}", "192.0.2.3", "bad.strong.lp.3.2.0.192.in-addr._spf.example.com")
|
|
testDNS("%{ir}.%{v}.%{l1r-}.lp._spf.%{d2}", "192.0.2.3", "3.2.0.192.in-addr.strong.lp._spf.example.com")
|
|
testDNS("%{d2}.trusted-domains.example.net", "192.0.2.3", "example.com.trusted-domains.example.net")
|
|
|
|
testDNS("%{ir}.%{v}._spf.%{d2}", "2001:db8::cb01", "1.0.b.c.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6._spf.example.com")
|
|
|
|
// Additional.
|
|
testDNS("%%%-%_", "10.0.0.1", "%%20 ")
|
|
testDNS("%{p}", "10.0.0.1", "mx.mox.example.")
|
|
testDNS("%{p}", "10.0.0.2", "sub.mx.mox.example.")
|
|
testDNS("%{p}", "10.0.0.3", "other.example.")
|
|
testDNS("%{p}", "10.0.0.4", "unknown")
|
|
testExpl("%{c}", "10.0.0.1", "10.10.10.10")
|
|
testExpl("%{r}", "10.0.0.1", "self.example")
|
|
orig := timeNow
|
|
now := orig()
|
|
defer func() {
|
|
timeNow = orig
|
|
}()
|
|
timeNow = func() time.Time {
|
|
return now
|
|
}
|
|
testExpl("%{t}", "10.0.0.1", fmt.Sprintf("%d", now.Unix()))
|
|
// DNS name can be 253 bytes long, each label can be 63 bytes.
|
|
xlabel := make([]byte, 62)
|
|
for i := range xlabel {
|
|
xlabel[i] = 'a'
|
|
}
|
|
label := string(xlabel)
|
|
name := label + "." + label + "." + label + "." + label // 4*62+3 = 251
|
|
testDNS("x."+name, "10.0.0.1", "x."+name) // Still fits.
|
|
testDNS("xx."+name, "10.0.0.1", name) // Does not fit, "xx." is truncated to make it fit.
|
|
testDNS("%{p}..", "10.0.0.1", "")
|
|
testDNS("%{h}", "10.0.0.1", "mx.mox.example")
|
|
}
|
|
|
|
func TestVerify(t *testing.T) {
|
|
xip := func(s string) net.IP {
|
|
ip := net.ParseIP(s)
|
|
if ip == nil {
|
|
t.Fatalf("bad ip: %q", s)
|
|
}
|
|
return ip
|
|
}
|
|
iplist := func(l ...string) []net.IP {
|
|
r := make([]net.IP, len(l))
|
|
for i, s := range l {
|
|
r[i] = xip(s)
|
|
}
|
|
return r
|
|
}
|
|
|
|
// ../rfc/7208:2975 Appendix A. Extended Examples
|
|
r := dns.MockResolver{
|
|
PTR: map[string][]string{
|
|
"192.0.2.10": {"example.com."},
|
|
"192.0.2.11": {"example.com."},
|
|
"192.0.2.65": {"amy.example.com."},
|
|
"192.0.2.66": {"bob.example.com."},
|
|
"192.0.2.129": {"mail-a.example.com."},
|
|
"192.0.2.130": {"mail-b.example.com."},
|
|
"192.0.2.140": {"mail-c.example.org."},
|
|
"10.0.0.4": {"bob.example.com."},
|
|
},
|
|
TXT: map[string][]string{
|
|
// Additional from DNSBL, ../rfc/7208:3115
|
|
"mobile-users._spf.example.com.": {"v=spf1 exists:%{l1r+}.%{d}"},
|
|
"remote-users._spf.example.com.": {"v=spf1 exists:%{ir}.%{l1r+}.%{d}"},
|
|
|
|
// Additional ../rfc/7208:3171
|
|
"ip4._spf.example.com.": {"v=spf1 -ip4:192.0.2.0/24 +all"},
|
|
"ptr._spf.example.com.": {"v=spf1 -ptr:example.com +all"}, // ../rfc/7208-eid6216 ../rfc/7208:3172
|
|
|
|
// Additional tests
|
|
"_spf.example.com.": {"v=spf1 include:_netblock.example.com -all"},
|
|
"_netblock.example.com.": {"v=spf1 ip4:192.0.2.128/28 -all"},
|
|
},
|
|
A: map[string][]string{
|
|
"example.com.": {"192.0.2.10", "192.0.2.11"},
|
|
"amy.example.com.": {"192.0.2.65"},
|
|
"bob.example.com.": {"192.0.2.66"},
|
|
"mail-a.example.com.": {"192.0.2.129"},
|
|
"mail-b.example.com.": {"192.0.2.130"},
|
|
"mail-c.example.org.": {"192.0.2.140"},
|
|
|
|
// Additional from DNSBL, ../rfc/7208:3115
|
|
"mary.mobile-users._spf.example.com.": {"127.0.0.2"},
|
|
"fred.mobile-users._spf.example.com.": {"127.0.0.2"},
|
|
"15.15.168.192.joel.remote-users._spf.example.com.": {"127.0.0.2"},
|
|
"16.15.168.192.joel.remote-users._spf.example.com.": {"127.0.0.2"},
|
|
},
|
|
AAAA: map[string][]string{},
|
|
MX: map[string][]*net.MX{
|
|
"example.com.": {
|
|
{Host: "mail-a.example.com.", Pref: 10},
|
|
{Host: "mail-b.example.com.", Pref: 20},
|
|
},
|
|
"example.org.": {
|
|
{Host: "mail-c.example.org.", Pref: 10},
|
|
},
|
|
},
|
|
}
|
|
|
|
ctx := context.Background()
|
|
|
|
verify := func(ip net.IP, localpart string, status Status) {
|
|
t.Helper()
|
|
|
|
args := Args{
|
|
MailFromLocalpart: smtp.Localpart(localpart),
|
|
MailFromDomain: dns.Domain{ASCII: "example.com"},
|
|
RemoteIP: ip,
|
|
LocalIP: xip("127.0.0.1"),
|
|
LocalHostname: dns.Domain{ASCII: "localhost"},
|
|
}
|
|
received, _, _, _, err := Verify(ctx, pkglog.Logger, r, args)
|
|
if received.Result != status {
|
|
t.Fatalf("got status %q, expected %q, for ip %q (err %v)", received.Result, status, ip, err)
|
|
}
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
}
|
|
|
|
test := func(txt string, ips []net.IP, only bool) {
|
|
r.TXT["example.com."] = []string{txt}
|
|
seen := map[string]struct{}{}
|
|
for _, ip := range ips {
|
|
verify(ip, "", StatusPass)
|
|
seen[ip.String()] = struct{}{}
|
|
}
|
|
if !only {
|
|
return
|
|
}
|
|
for ip := range r.PTR {
|
|
if _, ok := seen[ip]; ok {
|
|
continue
|
|
}
|
|
verify(xip(ip), "", StatusFail)
|
|
}
|
|
}
|
|
|
|
// ../rfc/7208:3031 A.1. Simple Examples
|
|
test("v=spf1 +all", iplist("192.0.2.129", "1.2.3.4"), false)
|
|
test("v=spf1 a -all", iplist("192.0.2.10", "192.0.2.11"), true)
|
|
test("v=spf1 a:example.org -all", iplist(), true)
|
|
test("v=spf1 mx -all", iplist("192.0.2.129", "192.0.2.130"), true)
|
|
test("v=spf1 mx:example.org -all", iplist("192.0.2.140"), true)
|
|
test("v=spf1 mx mx:example.org -all", iplist("192.0.2.129", "192.0.2.130", "192.0.2.140"), true)
|
|
test("v=spf1 mx/30 mx:example.org/30 -all", iplist("192.0.2.129", "192.0.2.130", "192.0.2.140"), true)
|
|
test("v=spf1 ptr -all", iplist("192.0.2.10", "192.0.2.11", "192.0.2.65", "192.0.2.66", "192.0.2.129", "192.0.2.130"), true)
|
|
test("v=spf1 ip4:192.0.2.128/28 -all", iplist("192.0.2.129", "192.0.2.130", "192.0.2.140"), true)
|
|
|
|
// Additional tests
|
|
test("v=spf1 redirect=_spf.example.com", iplist("192.0.2.129", "192.0.2.130", "192.0.2.140"), true)
|
|
|
|
// Additional from DNSBL, ../rfc/7208:3115
|
|
r.TXT["example.com."] = []string{"v=spf1 mx include:mobile-users._spf.%{d} include:remote-users._spf.%{d} -all"}
|
|
verify(xip("1.2.3.4"), "mary", StatusPass)
|
|
verify(xip("1.2.3.4"), "fred", StatusPass)
|
|
verify(xip("1.2.3.4"), "fred+wildcard", StatusPass)
|
|
verify(xip("1.2.3.4"), "joel", StatusFail)
|
|
verify(xip("1.2.3.4"), "other", StatusFail)
|
|
verify(xip("192.168.15.15"), "joel", StatusPass)
|
|
verify(xip("192.168.15.16"), "joel", StatusPass)
|
|
verify(xip("192.168.15.17"), "joel", StatusFail)
|
|
verify(xip("192.168.15.17"), "other", StatusFail)
|
|
|
|
// Additional ../rfc/7208:3171
|
|
r.TXT["example.com."] = []string{"v=spf1 -include:ip4._spf.%{d} -include:ptr._spf.%{d} +all"}
|
|
r.PTR["192.0.2.1"] = []string{"a.example.com."}
|
|
r.PTR["192.0.0.1"] = []string{"b.example.com."}
|
|
r.A["a.example.com."] = []string{"192.0.2.1"}
|
|
r.A["b.example.com."] = []string{"192.0.0.1"}
|
|
|
|
verify(xip("192.0.2.1"), "", StatusPass) // IP in range and PTR matches.
|
|
verify(xip("192.0.2.2"), "", StatusFail) // IP in range but no PTR match.
|
|
verify(xip("192.0.0.1"), "", StatusFail) // PTR match but IP not in range.
|
|
verify(xip("192.0.0.2"), "", StatusFail) // No PTR match and IP not in range.
|
|
}
|
|
|
|
// ../rfc/7208:3093
|
|
func TestVerifyMultipleDomain(t *testing.T) {
|
|
resolver := dns.MockResolver{
|
|
TXT: map[string][]string{
|
|
"example.org.": {"v=spf1 include:example.com include:example.net -all"},
|
|
"la.example.org.": {"v=spf1 redirect=example.org"},
|
|
"example.com.": {"v=spf1 ip4:10.0.0.1 -all"},
|
|
"example.net.": {"v=spf1 ip4:10.0.0.2 -all"},
|
|
},
|
|
}
|
|
|
|
verify := func(domain, ip string, status Status) {
|
|
t.Helper()
|
|
|
|
args := Args{
|
|
MailFromDomain: dns.Domain{ASCII: domain},
|
|
RemoteIP: net.ParseIP(ip),
|
|
LocalIP: net.ParseIP("127.0.0.1"),
|
|
LocalHostname: dns.Domain{ASCII: "localhost"},
|
|
}
|
|
received, _, _, _, err := Verify(context.Background(), pkglog.Logger, resolver, args)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
if received.Result != status {
|
|
t.Fatalf("got status %q, expected %q, for ip %q", received.Result, status, ip)
|
|
}
|
|
}
|
|
|
|
verify("example.com", "10.0.0.1", StatusPass)
|
|
verify("example.net", "10.0.0.2", StatusPass)
|
|
verify("example.com", "10.0.0.2", StatusFail)
|
|
verify("example.net", "10.0.0.1", StatusFail)
|
|
verify("example.org", "10.0.0.1", StatusPass)
|
|
verify("example.org", "10.0.0.2", StatusPass)
|
|
verify("example.org", "10.0.0.3", StatusFail)
|
|
verify("la.example.org", "10.0.0.1", StatusPass)
|
|
verify("la.example.org", "10.0.0.2", StatusPass)
|
|
verify("la.example.org", "10.0.0.3", StatusFail)
|
|
}
|
|
|
|
func TestVerifyScenarios(t *testing.T) {
|
|
test := func(resolver dns.Resolver, args Args, expStatus Status, expDomain string, expExpl string, expErr error) {
|
|
t.Helper()
|
|
|
|
recv, d, expl, _, err := Verify(context.Background(), pkglog.Logger, resolver, args)
|
|
if (err == nil) != (expErr == nil) || err != nil && !errors.Is(err, expErr) {
|
|
t.Fatalf("got err %v, expected %v", err, expErr)
|
|
}
|
|
if expStatus != recv.Result || expDomain != "" && d.ASCII != expDomain || expExpl != "" && expl != expExpl {
|
|
t.Fatalf("got status %q, domain %q, expl %q, err %v", recv.Result, d, expl, err)
|
|
}
|
|
}
|
|
|
|
r := dns.MockResolver{
|
|
TXT: map[string][]string{
|
|
"mox.example.": {"v=spf1 ip6:2001:db8::0/64 -all"},
|
|
"void.example.": {"v=spf1 exists:absent1.example exists:absent2.example ip4:1.2.3.4 exists:absent3.example -all"},
|
|
"loop.example.": {"v=spf1 include:loop.example -all"},
|
|
"a-unknown.example.": {"v=spf1 a:absent.example"},
|
|
"include-bad-expand.example.": {"v=spf1 include:%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"exists-bad-expand.example.": {"v=spf1 exists:%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"redir-bad-expand.example.": {"v=spf1 redirect=%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"a-bad-expand.example.": {"v=spf1 a:%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"mx-bad-expand.example.": {"v=spf1 mx:%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"ptr-bad-expand.example.": {"v=spf1 ptr:%{c}"}, // macro 'c' only valid while expanding for "exp".
|
|
"include-temperror.example.": {"v=spf1 include:temperror.example"},
|
|
"include-none.example.": {"v=spf1 include:absent.example"},
|
|
"include-permerror.example.": {"v=spf1 include:permerror.example"},
|
|
"permerror.example.": {"v=spf1 a:%%"},
|
|
"no-mx.example.": {"v=spf1 mx -all"},
|
|
"many-mx.example.": {"v=spf1 mx -all"},
|
|
"many-ptr.example.": {"v=spf1 ptr:many-mx.example ~all"},
|
|
"expl.example.": {"v=spf1 ip4:10.0.1.1 -ip4:10.0.1.2 ?all exp=details.expl.example"},
|
|
"details.expl.example.": {"your ip %{i} is not allowed"},
|
|
"expl-multi.example.": {"v=spf1 ip4:10.0.1.1 -ip4:10.0.1.2 ~all exp=details-multi.expl.example"},
|
|
"details-multi.expl.example.": {"your ip ", "%{i} is not allowed"},
|
|
},
|
|
A: map[string][]string{
|
|
"mail.mox.example.": {"10.0.0.1"},
|
|
"mx1.many-mx.example.": {"10.0.1.1"},
|
|
"mx2.many-mx.example.": {"10.0.1.2"},
|
|
"mx3.many-mx.example.": {"10.0.1.3"},
|
|
"mx4.many-mx.example.": {"10.0.1.4"},
|
|
"mx5.many-mx.example.": {"10.0.1.5"},
|
|
"mx6.many-mx.example.": {"10.0.1.6"},
|
|
"mx7.many-mx.example.": {"10.0.1.7"},
|
|
"mx8.many-mx.example.": {"10.0.1.8"},
|
|
"mx9.many-mx.example.": {"10.0.1.9"},
|
|
"mx10.many-mx.example.": {"10.0.1.10"},
|
|
"mx11.many-mx.example.": {"10.0.1.11"},
|
|
},
|
|
AAAA: map[string][]string{
|
|
"mail.mox.example.": {"2001:db8::1"},
|
|
},
|
|
MX: map[string][]*net.MX{
|
|
"no-mx.example.": {{Host: ".", Pref: 10}},
|
|
"many-mx.example.": {
|
|
{Host: "mx1.many-mx.example.", Pref: 1},
|
|
{Host: "mx2.many-mx.example.", Pref: 2},
|
|
{Host: "mx3.many-mx.example.", Pref: 3},
|
|
{Host: "mx4.many-mx.example.", Pref: 4},
|
|
{Host: "mx5.many-mx.example.", Pref: 5},
|
|
{Host: "mx6.many-mx.example.", Pref: 6},
|
|
{Host: "mx7.many-mx.example.", Pref: 7},
|
|
{Host: "mx8.many-mx.example.", Pref: 8},
|
|
{Host: "mx9.many-mx.example.", Pref: 9},
|
|
{Host: "mx10.many-mx.example.", Pref: 10},
|
|
{Host: "mx11.many-mx.example.", Pref: 11},
|
|
},
|
|
},
|
|
PTR: map[string][]string{
|
|
"2001:db8::1": {"mail.mox.example."},
|
|
"10.0.1.1": {"mx1.many-mx.example.", "mx2.many-mx.example.", "mx3.many-mx.example.", "mx4.many-mx.example.", "mx5.many-mx.example.", "mx6.many-mx.example.", "mx7.many-mx.example.", "mx8.many-mx.example.", "mx9.many-mx.example.", "mx10.many-mx.example.", "mx11.many-mx.example."},
|
|
},
|
|
Fail: []string{
|
|
"txt temperror.example.",
|
|
},
|
|
}
|
|
|
|
// IPv6 remote IP.
|
|
test(r, Args{RemoteIP: net.ParseIP("2001:db8::1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "mox.example"}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("2001:fa11::1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "mox.example"}}, StatusFail, "", "", nil)
|
|
|
|
// Use EHLO identity.
|
|
test(r, Args{RemoteIP: net.ParseIP("2001:db8::1"), HelloDomain: dns.IPDomain{Domain: dns.Domain{ASCII: "mox.example"}}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("2001:db8::1"), HelloDomain: dns.IPDomain{Domain: dns.Domain{ASCII: "mail.mox.example"}}}, StatusNone, "", "", ErrNoRecord)
|
|
|
|
// Too many void lookups.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "void.example"}}, StatusPass, "", "", nil) // IP found after 2 void lookups, but before 3rd.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.1.1.1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "void.example"}}, StatusPermerror, "", "", ErrTooManyVoidLookups) // IP not found, not doing 3rd lookup.
|
|
|
|
// Too many DNS requests.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "loop.example"}}, StatusPermerror, "", "", ErrTooManyDNSRequests) // Self-referencing record, will abort after 10 includes.
|
|
|
|
// a:other where other does not exist.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "a-unknown.example"}}, StatusNeutral, "", "", nil)
|
|
|
|
// Expand with an invalid macro.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "include-bad-expand.example"}}, StatusPermerror, "", "", ErrMacroSyntax)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "exists-bad-expand.example"}}, StatusPermerror, "", "", ErrMacroSyntax)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "redir-bad-expand.example"}}, StatusPermerror, "", "", ErrMacroSyntax)
|
|
|
|
// Expand with invalid character (because macros are not expanded).
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "a-bad-expand.example"}}, StatusPermerror, "", "", ErrName)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "mx-bad-expand.example"}}, StatusPermerror, "", "", ErrName)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "ptr-bad-expand.example"}}, StatusPermerror, "", "", ErrName)
|
|
|
|
// Include with varying results.
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "include-temperror.example"}}, StatusTemperror, "", "", ErrDNS)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "include-none.example"}}, StatusPermerror, "", "", ErrNoRecord)
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "include-permerror.example"}}, StatusPermerror, "", "", ErrName)
|
|
|
|
// MX with explicit "." for "no mail".
|
|
test(r, Args{RemoteIP: net.ParseIP("1.2.3.4"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "no-mx.example"}}, StatusFail, "", "", nil)
|
|
|
|
// MX names beyond 10th entry result in Permerror.
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-mx.example"}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.10"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-mx.example"}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.11"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-mx.example"}}, StatusPermerror, "", "", ErrTooManyDNSRequests)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.254"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-mx.example"}}, StatusPermerror, "", "", ErrTooManyDNSRequests)
|
|
|
|
// PTR names beyond 10th entry are ignored.
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-ptr.example"}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.2"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "many-ptr.example"}}, StatusSoftfail, "", "", nil)
|
|
|
|
// Explanation from txt records.
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.1"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "expl.example"}}, StatusPass, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.2"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "expl.example"}}, StatusFail, "", "your ip 10.0.1.2 is not allowed", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.3"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "expl.example"}}, StatusNeutral, "", "", nil)
|
|
test(r, Args{RemoteIP: net.ParseIP("10.0.1.2"), MailFromLocalpart: "x", MailFromDomain: dns.Domain{ASCII: "expl-multi.example"}}, StatusFail, "", "your ip 10.0.1.2 is not allowed", nil)
|
|
|
|
// Verify with IP EHLO.
|
|
test(r, Args{RemoteIP: net.ParseIP("2001:db8::1"), HelloDomain: dns.IPDomain{IP: net.ParseIP("::1")}}, StatusNone, "", "", nil)
|
|
}
|
|
|
|
func TestEvaluate(t *testing.T) {
|
|
record := &Record{}
|
|
resolver := dns.MockResolver{}
|
|
args := Args{}
|
|
status, _, _, _, _ := Evaluate(context.Background(), pkglog.Logger, record, resolver, args)
|
|
if status != StatusNone {
|
|
t.Fatalf("got status %q, expected none", status)
|
|
}
|
|
|
|
args = Args{
|
|
HelloDomain: dns.IPDomain{Domain: dns.Domain{ASCII: "test.example"}},
|
|
}
|
|
status, mechanism, _, _, err := Evaluate(context.Background(), pkglog.Logger, record, resolver, args)
|
|
if status != StatusNeutral || mechanism != "default" || err != nil {
|
|
t.Fatalf("got status %q, mechanism %q, err %v, expected neutral, default, no error", status, mechanism, err)
|
|
}
|
|
}
|