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when sending tls reports, ensure we use ASCII A-labels, not U-labels in the policy-domain field

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This commit is contained in:
Mechiel Lukkien
2024-01-24 10:36:20 +01:00
parent 14aa85482e
commit 62be829df0
5 changed files with 64 additions and 60 deletions
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112
tlsrptsend/send_test.go
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@ -55,11 +55,11 @@ func TestSendReports(t *testing.T) {
resolver := dns.MockResolver{
TXT: map[string][]string{
"_smtp._tls.sender.example.": {
"v=TLSRPTv1; rua=mailto:tls-reports@sender.example,https://ignored.example/",
"_smtp._tls.xn--74h.example.": {
"v=TLSRPTv1; rua=mailto:tls-reports@xn--74h.example,https://ignored.example/",
},
"_smtp._tls.mailhost.sender.example.": {
"v=TLSRPTv1; rua=mailto:tls-reports1@mailhost.sender.example,mailto:tls-reports2@mailhost.sender.example; rua=mailto:tls-reports3@mailhost.sender.example",
"_smtp._tls.mailhost.xn--74h.example.": {
"v=TLSRPTv1; rua=mailto:tls-reports1@mailhost.xn--74h.example,mailto:tls-reports2@mailhost.xn--74h.example; rua=mailto:tls-reports3@mailhost.xn--74h.example",
},
"_smtp._tls.noreport.example.": {
"v=TLSRPTv1; rua=mailto:tls-reports@noreport.example",
@ -76,18 +76,18 @@ func TestSendReports(t *testing.T) {
tlsResults := []tlsrptdb.TLSResult{
// For report1 below.
{
PolicyDomain: "sender.example",
PolicyDomain: "☺.example",
DayUTC: dayUTC,
RecipientDomain: "sender.example",
RecipientDomain: "☺.example",
IsHost: false,
SendReport: true,
Results: []tlsrpt.Result{
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.STS,
Domain: "sender.example",
Domain: "xn--74h.example",
String: []string{"... mtasts policy ..."},
MXHost: []string{"*.sender.example"},
MXHost: []string{"*.xn--74h.example"},
},
Summary: tlsrpt.Summary{
TotalSuccessfulSessionCount: 10,
@ -97,8 +97,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultCertificateExpired,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 3,
},
@ -109,16 +109,16 @@ func TestSendReports(t *testing.T) {
// For report2 below.
{
PolicyDomain: "mailhost.sender.example",
PolicyDomain: "mailhost.☺.example",
DayUTC: dayUTC,
RecipientDomain: "sender.example",
RecipientDomain: "☺.example",
IsHost: true,
SendReport: false, // Would be ignored if on its own, but we have another result for this policy domain.
Results: []tlsrpt.Result{
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.TLSA,
Domain: "mailhost.sender.example",
Domain: "mailhost.xn--74h.example",
String: []string{"... tlsa record ..."},
},
Summary: tlsrpt.Summary{
@ -129,8 +129,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -140,7 +140,7 @@ func TestSendReports(t *testing.T) {
},
},
{
PolicyDomain: "mailhost.sender.example",
PolicyDomain: "mailhost.☺.example",
DayUTC: dayUTC,
RecipientDomain: "sharedsender.example",
IsHost: true,
@ -149,7 +149,7 @@ func TestSendReports(t *testing.T) {
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.TLSA,
Domain: "mailhost.sender.example",
Domain: "mailhost.xn--74h.example",
String: []string{"... tlsa record ..."},
},
Summary: tlsrpt.Summary{
@ -160,8 +160,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -242,14 +242,14 @@ func TestSendReports(t *testing.T) {
End: endUTC.Add(-time.Second),
},
ContactInfo: "postmaster@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".sender.example@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".xn--74h.example@mox.example",
Policies: []tlsrpt.Result{
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.STS,
Domain: "sender.example",
Domain: "xn--74h.example",
String: []string{"... mtasts policy ..."},
MXHost: []string{"*.sender.example"},
MXHost: []string{"*.xn--74h.example"},
},
Summary: tlsrpt.Summary{
TotalSuccessfulSessionCount: 10,
@ -259,8 +259,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultCertificateExpired,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 3,
},
@ -270,7 +270,7 @@ func TestSendReports(t *testing.T) {
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.TLSA,
Domain: "mailhost.sender.example",
Domain: "mailhost.xn--74h.example",
String: []string{"... tlsa record ..."},
},
Summary: tlsrpt.Summary{
@ -281,8 +281,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -298,16 +298,16 @@ func TestSendReports(t *testing.T) {
End: endUTC.Add(-time.Second),
},
ContactInfo: "postmaster@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".mailhost.sender.example@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".mailhost.xn--74h.example@mox.example",
Policies: []tlsrpt.Result{
// The MX target policies are per-recipient domain, so the MX operator can see the
// affected recipient domains.
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.TLSA,
Domain: "sender.example", // Recipient domain.
Domain: "sharedsender.example", // Recipient domain.
String: []string{"... tlsa record ..."},
MXHost: []string{"mailhost.sender.example"}, // Original policy domain.
MXHost: []string{"mailhost.xn--74h.example"}, // Original policy domain.
},
Summary: tlsrpt.Summary{
TotalSuccessfulSessionCount: 10,
@ -317,8 +317,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -328,9 +328,9 @@ func TestSendReports(t *testing.T) {
{
Policy: tlsrpt.ResultPolicy{
Type: tlsrpt.TLSA,
Domain: "sharedsender.example", // Recipient domain.
Domain: "xn--74h.example", // Recipient domain.
String: []string{"... tlsa record ..."},
MXHost: []string{"mailhost.sender.example"}, // Original policy domain.
MXHost: []string{"mailhost.xn--74h.example"}, // Original policy domain.
},
Summary: tlsrpt.Summary{
TotalSuccessfulSessionCount: 10,
@ -340,8 +340,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -357,7 +357,7 @@ func TestSendReports(t *testing.T) {
End: endUTC.Add(-time.Second),
},
ContactInfo: "postmaster@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".mailhost.sender.example@mox.example",
ReportID: endUTC.Add(-12*time.Hour).Format("20060102") + ".mailhost.xn--74h.example@mox.example",
Policies: []tlsrpt.Result{
// The MX target policies are per-recipient domain, so the MX operator can see the
// affected recipient domains.
@ -366,7 +366,7 @@ func TestSendReports(t *testing.T) {
Type: tlsrpt.TLSA,
Domain: "sharedsender.example", // Recipient domain.
String: []string{"... tlsa record ..."},
MXHost: []string{"mailhost.sender.example"}, // Original policy domain.
MXHost: []string{"mailhost.xn--74h.example"}, // Original policy domain.
},
Summary: tlsrpt.Summary{
TotalSuccessfulSessionCount: 10,
@ -376,8 +376,8 @@ func TestSendReports(t *testing.T) {
{
ResultType: tlsrpt.ResultValidationFailure,
SendingMTAIP: "1.2.3.4",
ReceivingMXHostname: "mailhost.sender.example",
ReceivingMXHelo: "mailhost.sender.example",
ReceivingMXHostname: "mailhost.xn--74h.example",
ReceivingMXHelo: "mailhost.xn--74h.example",
ReceivingIP: "4.3.2.1",
FailedSessionCount: 1,
FailureReasonCode: "dns-extended-error-7-signature-expired",
@ -464,34 +464,34 @@ func TestSendReports(t *testing.T) {
// Multiple results, some are combined into a single report, another result
// generates a separate report to multiple rua's, and the last don't send a report.
test(tlsResults, map[string][]tlsrpt.Report{
"tls-reports@sender.example": {report1},
"tls-reports1@mailhost.sender.example": {report2},
"tls-reports2@mailhost.sender.example": {report2},
"tls-reports3@mailhost.sender.example": {report2},
"tls-reports@xn--74h.example": {report1},
"tls-reports1@mailhost.xn--74h.example": {report2},
"tls-reports2@mailhost.xn--74h.example": {report2},
"tls-reports3@mailhost.xn--74h.example": {report2},
})
// If MX target has same reporting addresses as recipient domain, only recipient
// domain should get a report.
resolver.TXT["_smtp._tls.mailhost.sender.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports@sender.example"}
resolver.TXT["_smtp._tls.mailhost.xn--74h.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports@xn--74h.example"}
test(tlsResults[:2], map[string][]tlsrpt.Report{
"tls-reports@sender.example": {report1},
"tls-reports@xn--74h.example": {report1},
})
resolver.TXT["_smtp._tls.sharedsender.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports@sender.example"}
resolver.TXT["_smtp._tls.sharedsender.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports@xn--74h.example"}
test(tlsResults, map[string][]tlsrpt.Report{
"tls-reports@sender.example": {report1, report3},
"tls-reports@xn--74h.example": {report1, report3},
})
// Suppressed addresses don't get a report.
resolver.TXT["_smtp._tls.mailhost.sender.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports1@mailhost.sender.example,mailto:tls-reports2@mailhost.sender.example; rua=mailto:tls-reports3@mailhost.sender.example"}
resolver.TXT["_smtp._tls.mailhost.xn--74h.example."] = []string{"v=TLSRPTv1; rua=mailto:tls-reports1@mailhost.xn--74h.example,mailto:tls-reports2@mailhost.xn--74h.example; rua=mailto:tls-reports3@mailhost.xn--74h.example"}
db.Insert(ctxbg,
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports@sender.example", Until: time.Now().Add(-time.Minute)}, // Expired, so ignored.
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports1@mailhost.sender.example", Until: time.Now().Add(time.Minute)}, // Still valid.
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports3@mailhost.sender.example", Until: time.Now().Add(31 * 24 * time.Hour)}, // Still valid.
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports@xn--74h.example", Until: time.Now().Add(-time.Minute)}, // Expired, so ignored.
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports1@mailhost.xn--74h.example", Until: time.Now().Add(time.Minute)}, // Still valid.
&tlsrptdb.TLSRPTSuppressAddress{ReportingAddress: "tls-reports3@mailhost.xn--74h.example", Until: time.Now().Add(31 * 24 * time.Hour)}, // Still valid.
)
test(tlsResults, map[string][]tlsrpt.Report{
"tls-reports@sender.example": {report1},
"tls-reports2@mailhost.sender.example": {report2},
"tls-reports@xn--74h.example": {report1},
"tls-reports2@mailhost.xn--74h.example": {report2},
})
// Make reports success-only, ensuring we don't get a report anymore.
@ -512,7 +512,7 @@ func TestSendReports(t *testing.T) {
}
}
test(tlsResults, map[string][]tlsrpt.Report{
"tls-reports@sender.example": {report1},
"tls-reports2@mailhost.sender.example": {report2},
"tls-reports@xn--74h.example": {report1},
"tls-reports2@mailhost.xn--74h.example": {report2},
})
}