happyDeliver/pkg/analyzer/authentication_test.go

438 lines
15 KiB
Go

// This file is part of the happyDeliver (R) project.
// Copyright (c) 2025 happyDomain
// Authors: Pierre-Olivier Mercier, et al.
//
// This program is offered under a commercial and under the AGPL license.
// For commercial licensing, contact us at <contact@happydomain.org>.
//
// For AGPL licensing:
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package analyzer
import (
"testing"
"git.happydns.org/happyDeliver/internal/api"
)
func TestGetAuthenticationScore(t *testing.T) {
tests := []struct {
name string
results *api.AuthenticationResults
expectedScore int
}{
{
name: "Perfect authentication (SPF + DKIM + DMARC)",
results: &api.AuthenticationResults{
Spf: &api.AuthResult{
Result: api.AuthResultResultPass,
},
Dkim: &[]api.AuthResult{
{Result: api.AuthResultResultPass},
},
Dmarc: &api.AuthResult{
Result: api.AuthResultResultPass,
},
},
expectedScore: 73, // SPF=25 + DKIM=23 + DMARC=25
},
{
name: "SPF and DKIM only",
results: &api.AuthenticationResults{
Spf: &api.AuthResult{
Result: api.AuthResultResultPass,
},
Dkim: &[]api.AuthResult{
{Result: api.AuthResultResultPass},
},
},
expectedScore: 48, // SPF=25 + DKIM=23
},
{
name: "SPF fail, DKIM pass",
results: &api.AuthenticationResults{
Spf: &api.AuthResult{
Result: api.AuthResultResultFail,
},
Dkim: &[]api.AuthResult{
{Result: api.AuthResultResultPass},
},
},
expectedScore: 23, // SPF=0 + DKIM=23
},
{
name: "SPF softfail",
results: &api.AuthenticationResults{
Spf: &api.AuthResult{
Result: api.AuthResultResultSoftfail,
},
},
expectedScore: 4,
},
{
name: "No authentication",
results: &api.AuthenticationResults{},
expectedScore: 0,
},
{
name: "BIMI adds to score",
results: &api.AuthenticationResults{
Spf: &api.AuthResult{
Result: api.AuthResultResultPass,
},
Bimi: &api.AuthResult{
Result: api.AuthResultResultPass,
},
},
expectedScore: 35, // SPF (25) + BIMI (10)
},
}
scorer := NewAuthenticationAnalyzer()
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
score, _ := scorer.CalculateAuthenticationScore(tt.results)
if score != tt.expectedScore {
t.Errorf("Score = %v, want %v", score, tt.expectedScore)
}
})
}
}
func TestParseAuthenticationResultsHeader(t *testing.T) {
tests := []struct {
name string
header string
expectedSPFResult *api.AuthResultResult
expectedSPFDomain *string
expectedDKIMCount int
expectedDKIMResult *api.AuthResultResult
expectedDMARCResult *api.AuthResultResult
expectedDMARCDomain *string
expectedBIMIResult *api.AuthResultResult
expectedARCResult *api.ARCResultResult
}{
{
name: "Complete authentication results",
header: "mx.google.com; spf=pass smtp.mailfrom=sender@example.com; dkim=pass header.d=example.com header.s=default; dmarc=pass action=none header.from=example.com",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCDomain: api.PtrTo("example.com"),
},
{
name: "SPF only",
header: "mail.example.com; spf=pass smtp.mailfrom=user@domain.com",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedSPFDomain: api.PtrTo("domain.com"),
expectedDKIMCount: 0,
expectedDMARCResult: nil,
},
{
name: "DKIM only",
header: "mail.example.com; dkim=pass header.d=example.com header.s=selector1",
expectedSPFResult: nil,
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
},
{
name: "Multiple DKIM signatures",
header: "mail.example.com; dkim=pass header.d=example.com header.s=s1; dkim=pass header.d=example.com header.s=s2",
expectedSPFResult: nil,
expectedDKIMCount: 2,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCResult: nil,
},
{
name: "SPF fail with DKIM pass",
header: "mail.example.com; spf=fail smtp.mailfrom=sender@example.com; dkim=pass header.d=example.com header.s=default",
expectedSPFResult: api.PtrTo(api.AuthResultResultFail),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCResult: nil,
},
{
name: "SPF softfail",
header: "mail.example.com; spf=softfail smtp.mailfrom=sender@example.com",
expectedSPFResult: api.PtrTo(api.AuthResultResultSoftfail),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 0,
expectedDMARCResult: nil,
},
{
name: "DMARC fail",
header: "mail.example.com; spf=pass smtp.mailfrom=sender@example.com; dkim=pass header.d=example.com header.s=default; dmarc=fail action=quarantine header.from=example.com",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCResult: api.PtrTo(api.AuthResultResultFail),
expectedDMARCDomain: api.PtrTo("example.com"),
},
{
name: "BIMI pass",
header: "mail.example.com; spf=pass smtp.mailfrom=sender@example.com; bimi=pass header.d=example.com header.selector=default",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 0,
expectedBIMIResult: api.PtrTo(api.AuthResultResultPass),
},
{
name: "ARC pass",
header: "mail.example.com; arc=pass",
expectedSPFResult: nil,
expectedDKIMCount: 0,
expectedARCResult: api.PtrTo(api.ARCResultResultPass),
},
{
name: "All authentication methods",
header: "mx.google.com; spf=pass smtp.mailfrom=sender@example.com; dkim=pass header.d=example.com header.s=default; dmarc=pass action=none header.from=example.com; bimi=pass header.d=example.com header.selector=v1; arc=pass",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCResult: api.PtrTo(api.AuthResultResultPass),
expectedDMARCDomain: api.PtrTo("example.com"),
expectedBIMIResult: api.PtrTo(api.AuthResultResultPass),
expectedARCResult: api.PtrTo(api.ARCResultResultPass),
},
{
name: "Empty header (authserv-id only)",
header: "mx.google.com",
expectedSPFResult: nil,
expectedDKIMCount: 0,
},
{
name: "Empty parts with semicolons",
header: "mx.google.com; ; ; spf=pass smtp.mailfrom=sender@example.com; ;",
expectedSPFResult: api.PtrTo(api.AuthResultResultPass),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 0,
},
{
name: "DKIM with short form parameters",
header: "mail.example.com; dkim=pass d=example.com s=selector1",
expectedSPFResult: nil,
expectedDKIMCount: 1,
expectedDKIMResult: api.PtrTo(api.AuthResultResultPass),
},
{
name: "SPF neutral",
header: "mail.example.com; spf=neutral smtp.mailfrom=sender@example.com",
expectedSPFResult: api.PtrTo(api.AuthResultResultNeutral),
expectedSPFDomain: api.PtrTo("example.com"),
expectedDKIMCount: 0,
},
{
name: "SPF none",
header: "mail.example.com; spf=none",
expectedSPFResult: api.PtrTo(api.AuthResultResultNone),
expectedDKIMCount: 0,
},
}
analyzer := NewAuthenticationAnalyzer()
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(tt.header, results)
// Check SPF
if tt.expectedSPFResult != nil {
if results.Spf == nil {
t.Errorf("Expected SPF result, got nil")
} else {
if results.Spf.Result != *tt.expectedSPFResult {
t.Errorf("SPF Result = %v, want %v", results.Spf.Result, *tt.expectedSPFResult)
}
if tt.expectedSPFDomain != nil {
if results.Spf.Domain == nil || *results.Spf.Domain != *tt.expectedSPFDomain {
var gotDomain string
if results.Spf.Domain != nil {
gotDomain = *results.Spf.Domain
}
t.Errorf("SPF Domain = %v, want %v", gotDomain, *tt.expectedSPFDomain)
}
}
}
} else {
if results.Spf != nil {
t.Errorf("Expected no SPF result, got %+v", results.Spf)
}
}
// Check DKIM count and result
if results.Dkim == nil {
if tt.expectedDKIMCount != 0 {
t.Errorf("Expected %d DKIM results, got nil", tt.expectedDKIMCount)
}
} else {
if len(*results.Dkim) != tt.expectedDKIMCount {
t.Errorf("DKIM count = %d, want %d", len(*results.Dkim), tt.expectedDKIMCount)
}
if tt.expectedDKIMResult != nil && len(*results.Dkim) > 0 {
if (*results.Dkim)[0].Result != *tt.expectedDKIMResult {
t.Errorf("DKIM Result = %v, want %v", (*results.Dkim)[0].Result, *tt.expectedDKIMResult)
}
}
}
// Check DMARC
if tt.expectedDMARCResult != nil {
if results.Dmarc == nil {
t.Errorf("Expected DMARC result, got nil")
} else {
if results.Dmarc.Result != *tt.expectedDMARCResult {
t.Errorf("DMARC Result = %v, want %v", results.Dmarc.Result, *tt.expectedDMARCResult)
}
if tt.expectedDMARCDomain != nil {
if results.Dmarc.Domain == nil || *results.Dmarc.Domain != *tt.expectedDMARCDomain {
var gotDomain string
if results.Dmarc.Domain != nil {
gotDomain = *results.Dmarc.Domain
}
t.Errorf("DMARC Domain = %v, want %v", gotDomain, *tt.expectedDMARCDomain)
}
}
}
} else {
if results.Dmarc != nil {
t.Errorf("Expected no DMARC result, got %+v", results.Dmarc)
}
}
// Check BIMI
if tt.expectedBIMIResult != nil {
if results.Bimi == nil {
t.Errorf("Expected BIMI result, got nil")
} else {
if results.Bimi.Result != *tt.expectedBIMIResult {
t.Errorf("BIMI Result = %v, want %v", results.Bimi.Result, *tt.expectedBIMIResult)
}
}
} else {
if results.Bimi != nil {
t.Errorf("Expected no BIMI result, got %+v", results.Bimi)
}
}
// Check ARC
if tt.expectedARCResult != nil {
if results.Arc == nil {
t.Errorf("Expected ARC result, got nil")
} else {
if results.Arc.Result != *tt.expectedARCResult {
t.Errorf("ARC Result = %v, want %v", results.Arc.Result, *tt.expectedARCResult)
}
}
} else {
if results.Arc != nil {
t.Errorf("Expected no ARC result, got %+v", results.Arc)
}
}
})
}
}
func TestParseAuthenticationResultsHeader_OnlyFirstResultParsed(t *testing.T) {
// This test verifies that only the first occurrence of each auth method is parsed
analyzer := NewAuthenticationAnalyzer()
t.Run("Multiple SPF results - only first is parsed", func(t *testing.T) {
header := "mail.example.com; spf=pass smtp.mailfrom=first@example.com; spf=fail smtp.mailfrom=second@example.com"
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(header, results)
if results.Spf == nil {
t.Fatal("Expected SPF result, got nil")
}
if results.Spf.Result != api.AuthResultResultPass {
t.Errorf("Expected first SPF result (pass), got %v", results.Spf.Result)
}
if results.Spf.Domain == nil || *results.Spf.Domain != "example.com" {
t.Errorf("Expected domain from first SPF result")
}
})
t.Run("Multiple DMARC results - only first is parsed", func(t *testing.T) {
header := "mail.example.com; dmarc=pass header.from=first.com; dmarc=fail header.from=second.com"
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(header, results)
if results.Dmarc == nil {
t.Fatal("Expected DMARC result, got nil")
}
if results.Dmarc.Result != api.AuthResultResultPass {
t.Errorf("Expected first DMARC result (pass), got %v", results.Dmarc.Result)
}
if results.Dmarc.Domain == nil || *results.Dmarc.Domain != "first.com" {
t.Errorf("Expected domain from first DMARC result")
}
})
t.Run("Multiple ARC results - only first is parsed", func(t *testing.T) {
header := "mail.example.com; arc=pass; arc=fail"
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(header, results)
if results.Arc == nil {
t.Fatal("Expected ARC result, got nil")
}
if results.Arc.Result != api.ARCResultResultPass {
t.Errorf("Expected first ARC result (pass), got %v", results.Arc.Result)
}
})
t.Run("Multiple BIMI results - only first is parsed", func(t *testing.T) {
header := "mail.example.com; bimi=pass header.d=first.com; bimi=fail header.d=second.com"
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(header, results)
if results.Bimi == nil {
t.Fatal("Expected BIMI result, got nil")
}
if results.Bimi.Result != api.AuthResultResultPass {
t.Errorf("Expected first BIMI result (pass), got %v", results.Bimi.Result)
}
if results.Bimi.Domain == nil || *results.Bimi.Domain != "first.com" {
t.Errorf("Expected domain from first BIMI result")
}
})
t.Run("Multiple DKIM results - all are parsed", func(t *testing.T) {
// DKIM is special - multiple signatures should all be collected
header := "mail.example.com; dkim=pass header.d=first.com header.s=s1; dkim=fail header.d=second.com header.s=s2"
results := &api.AuthenticationResults{}
analyzer.parseAuthenticationResultsHeader(header, results)
if results.Dkim == nil {
t.Fatal("Expected DKIM results, got nil")
}
if len(*results.Dkim) != 2 {
t.Errorf("Expected 2 DKIM results, got %d", len(*results.Dkim))
}
if (*results.Dkim)[0].Result != api.AuthResultResultPass {
t.Errorf("Expected first DKIM result to be pass, got %v", (*results.Dkim)[0].Result)
}
if (*results.Dkim)[1].Result != api.AuthResultResultFail {
t.Errorf("Expected second DKIM result to be fail, got %v", (*results.Dkim)[1].Result)
}
})
}