mirror of
https://github.com/netbirdio/netbird.git
synced 2026-04-16 07:16:38 +00:00
307 lines
9.8 KiB
Go
307 lines
9.8 KiB
Go
package acme
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import (
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"context"
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/netbirdio/netbird/proxy/internal/types"
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)
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func TestHostPolicy(t *testing.T) {
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mgr, err := NewManager(ManagerConfig{CertDir: t.TempDir(), ACMEURL: "https://acme.example.com/directory"}, nil, nil, nil)
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require.NoError(t, err)
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mgr.AddDomain("example.com", types.AccountID("acc1"), types.ServiceID("rp1"))
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// Wait for the background prefetch goroutine to finish so the temp dir
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// can be cleaned up without a race.
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t.Cleanup(func() {
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assert.Eventually(t, func() bool {
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return mgr.PendingCerts() == 0
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}, 30*time.Second, 50*time.Millisecond)
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})
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tests := []struct {
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name string
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host string
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wantErr bool
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}{
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{
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name: "exact domain match",
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host: "example.com",
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},
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{
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name: "domain with port",
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host: "example.com:443",
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},
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{
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name: "unknown domain",
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host: "unknown.com",
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wantErr: true,
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},
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{
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name: "unknown domain with port",
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host: "unknown.com:443",
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wantErr: true,
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},
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{
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name: "empty host",
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host: "",
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wantErr: true,
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},
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{
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name: "port only",
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host: ":443",
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wantErr: true,
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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err := mgr.hostPolicy(context.Background(), tc.host)
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if tc.wantErr {
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require.Error(t, err)
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assert.Contains(t, err.Error(), "unknown domain")
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
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func TestDomainStates(t *testing.T) {
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mgr, err := NewManager(ManagerConfig{CertDir: t.TempDir(), ACMEURL: "https://acme.example.com/directory"}, nil, nil, nil)
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require.NoError(t, err)
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assert.Equal(t, 0, mgr.PendingCerts(), "initially zero")
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assert.Equal(t, 0, mgr.TotalDomains(), "initially zero domains")
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assert.Empty(t, mgr.PendingDomains())
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assert.Empty(t, mgr.ReadyDomains())
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assert.Empty(t, mgr.FailedDomains())
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// AddDomain starts as pending, then the prefetch goroutine will fail
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// (no real ACME server) and transition to failed.
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mgr.AddDomain("a.example.com", types.AccountID("acc1"), types.ServiceID("rp1"))
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mgr.AddDomain("b.example.com", types.AccountID("acc1"), types.ServiceID("rp1"))
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assert.Equal(t, 2, mgr.TotalDomains(), "two domains registered")
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// Pending domains should eventually drain after prefetch goroutines finish.
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assert.Eventually(t, func() bool {
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return mgr.PendingCerts() == 0
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}, 30*time.Second, 100*time.Millisecond, "pending certs should return to zero after prefetch completes")
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assert.Empty(t, mgr.PendingDomains())
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assert.Equal(t, 2, mgr.TotalDomains(), "total domains unchanged")
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// With a fake ACME URL, both should have failed.
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failed := mgr.FailedDomains()
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assert.Len(t, failed, 2, "both domains should have failed")
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assert.Contains(t, failed, "a.example.com")
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assert.Contains(t, failed, "b.example.com")
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assert.Empty(t, mgr.ReadyDomains())
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}
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func TestParseWildcard(t *testing.T) {
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tests := []struct {
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pattern string
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wantSuffix string
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wantOK bool
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}{
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{"*.example.com", ".example.com", true},
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{"*.foo.example.com", ".foo.example.com", true},
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{"*.COM", ".com", true}, // single-label TLD
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{"example.com", "", false}, // no wildcard prefix
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{"*example.com", "", false}, // missing dot
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{"**.example.com", "", false}, // double star
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{"", "", false},
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}
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for _, tc := range tests {
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t.Run(tc.pattern, func(t *testing.T) {
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suffix, ok := parseWildcard(tc.pattern)
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assert.Equal(t, tc.wantOK, ok)
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if ok {
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assert.Equal(t, tc.wantSuffix, suffix)
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}
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})
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}
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}
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func TestMatchesWildcard(t *testing.T) {
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wcDir := t.TempDir()
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generateSelfSignedCert(t, wcDir, "example", "*.example.com")
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acmeDir := t.TempDir()
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mgr, err := NewManager(ManagerConfig{CertDir: acmeDir, ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.NoError(t, err)
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tests := []struct {
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host string
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match bool
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}{
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{"foo.example.com", true},
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{"bar.example.com", true},
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{"FOO.Example.COM", true}, // case insensitive
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{"example.com", false}, // bare parent
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{"sub.foo.example.com", false}, // multi-level
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{"notexample.com", false},
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{"", false},
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}
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for _, tc := range tests {
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t.Run(tc.host, func(t *testing.T) {
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assert.Equal(t, tc.match, mgr.findWildcardEntry(tc.host) != nil)
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})
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}
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}
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// generateSelfSignedCert creates a temporary self-signed certificate and key
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// for testing purposes. The baseName controls the output filenames:
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// <baseName>.crt and <baseName>.key.
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func generateSelfSignedCert(t *testing.T, dir, baseName string, dnsNames ...string) {
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t.Helper()
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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require.NoError(t, err)
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template := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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Subject: pkix.Name{CommonName: dnsNames[0]},
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DNSNames: dnsNames,
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NotBefore: time.Now().Add(-time.Hour),
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NotAfter: time.Now().Add(24 * time.Hour),
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}
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certDER, err := x509.CreateCertificate(rand.Reader, template, template, &key.PublicKey, key)
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require.NoError(t, err)
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certFile, err := os.Create(filepath.Join(dir, baseName+".crt"))
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require.NoError(t, err)
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require.NoError(t, pem.Encode(certFile, &pem.Block{Type: "CERTIFICATE", Bytes: certDER}))
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require.NoError(t, certFile.Close())
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keyDER, err := x509.MarshalECPrivateKey(key)
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require.NoError(t, err)
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keyFile, err := os.Create(filepath.Join(dir, baseName+".key"))
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require.NoError(t, err)
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require.NoError(t, pem.Encode(keyFile, &pem.Block{Type: "EC PRIVATE KEY", Bytes: keyDER}))
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require.NoError(t, keyFile.Close())
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}
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func TestWildcardAddDomainSkipsACME(t *testing.T) {
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wcDir := t.TempDir()
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generateSelfSignedCert(t, wcDir, "example", "*.example.com")
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acmeDir := t.TempDir()
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mgr, err := NewManager(ManagerConfig{CertDir: acmeDir, ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.NoError(t, err)
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// Add a wildcard-matching domain — should be immediately ready.
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mgr.AddDomain("foo.example.com", types.AccountID("acc1"), types.ServiceID("svc1"))
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assert.Equal(t, 0, mgr.PendingCerts(), "wildcard domain should not be pending")
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assert.Equal(t, []string{"foo.example.com"}, mgr.ReadyDomains())
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// Add a non-wildcard domain — should go through ACME (pending then failed).
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mgr.AddDomain("other.net", types.AccountID("acc2"), types.ServiceID("svc2"))
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assert.Equal(t, 2, mgr.TotalDomains())
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// Wait for the ACME prefetch to fail.
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assert.Eventually(t, func() bool {
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return mgr.PendingCerts() == 0
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}, 30*time.Second, 100*time.Millisecond)
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assert.Equal(t, []string{"foo.example.com"}, mgr.ReadyDomains())
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assert.Contains(t, mgr.FailedDomains(), "other.net")
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}
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func TestWildcardGetCertificate(t *testing.T) {
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wcDir := t.TempDir()
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generateSelfSignedCert(t, wcDir, "example", "*.example.com")
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acmeDir := t.TempDir()
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mgr, err := NewManager(ManagerConfig{CertDir: acmeDir, ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.NoError(t, err)
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mgr.AddDomain("foo.example.com", types.AccountID("acc1"), types.ServiceID("svc1"))
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// GetCertificate for a wildcard-matching domain should return the static cert.
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cert, err := mgr.GetCertificate(&tls.ClientHelloInfo{ServerName: "foo.example.com"})
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require.NoError(t, err)
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require.NotNil(t, cert)
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assert.Contains(t, cert.Leaf.DNSNames, "*.example.com")
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}
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func TestMultipleWildcards(t *testing.T) {
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wcDir := t.TempDir()
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generateSelfSignedCert(t, wcDir, "example", "*.example.com")
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generateSelfSignedCert(t, wcDir, "other", "*.other.org")
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acmeDir := t.TempDir()
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mgr, err := NewManager(ManagerConfig{CertDir: acmeDir, ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.NoError(t, err)
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assert.ElementsMatch(t, []string{"*.example.com", "*.other.org"}, mgr.WildcardPatterns())
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// Both wildcards should resolve.
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mgr.AddDomain("foo.example.com", types.AccountID("acc1"), types.ServiceID("svc1"))
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mgr.AddDomain("bar.other.org", types.AccountID("acc2"), types.ServiceID("svc2"))
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assert.Equal(t, 0, mgr.PendingCerts())
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assert.ElementsMatch(t, []string{"foo.example.com", "bar.other.org"}, mgr.ReadyDomains())
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// GetCertificate routes to the correct cert.
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cert1, err := mgr.GetCertificate(&tls.ClientHelloInfo{ServerName: "foo.example.com"})
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require.NoError(t, err)
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assert.Contains(t, cert1.Leaf.DNSNames, "*.example.com")
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cert2, err := mgr.GetCertificate(&tls.ClientHelloInfo{ServerName: "bar.other.org"})
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require.NoError(t, err)
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assert.Contains(t, cert2.Leaf.DNSNames, "*.other.org")
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// Non-matching domain falls through to ACME.
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mgr.AddDomain("custom.net", types.AccountID("acc3"), types.ServiceID("svc3"))
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assert.Eventually(t, func() bool {
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return mgr.PendingCerts() == 0
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}, 30*time.Second, 100*time.Millisecond)
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assert.Contains(t, mgr.FailedDomains(), "custom.net")
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}
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func TestWildcardDirEmpty(t *testing.T) {
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wcDir := t.TempDir()
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// Empty directory — no .crt files.
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_, err := NewManager(ManagerConfig{CertDir: t.TempDir(), ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.Error(t, err)
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assert.Contains(t, err.Error(), "no .crt files found")
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}
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func TestWildcardDirNonWildcardCert(t *testing.T) {
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wcDir := t.TempDir()
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// Certificate without a wildcard SAN.
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generateSelfSignedCert(t, wcDir, "plain", "plain.example.com")
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_, err := NewManager(ManagerConfig{CertDir: t.TempDir(), ACMEURL: "https://acme.example.com/directory", WildcardDir: wcDir}, nil, nil, nil)
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require.Error(t, err)
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assert.Contains(t, err.Error(), "no wildcard SANs")
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}
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func TestNoWildcardDir(t *testing.T) {
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// Empty string means no wildcard dir — pure ACME mode.
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mgr, err := NewManager(ManagerConfig{CertDir: t.TempDir(), ACMEURL: "https://acme.example.com/directory"}, nil, nil, nil)
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require.NoError(t, err)
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assert.Empty(t, mgr.WildcardPatterns())
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}
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