406 lines
14 KiB
Go
406 lines
14 KiB
Go
package httpapi
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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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"errors"
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"fmt"
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"math/big"
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"net"
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"net/http"
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"os"
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"path/filepath"
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"sync"
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"testing"
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"time"
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"git.pcux.cn/xuans/Scert/backend/internal/certificate"
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"git.pcux.cn/xuans/Scert/backend/internal/config"
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)
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type rotationFixture struct {
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server *Server
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address string
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root *x509.Certificate
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key *ecdsa.PrivateKey
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pool *x509.CertPool
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directory string
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firstCertificate string
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firstKey string
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}
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func newRotationFixture(t *testing.T) *rotationFixture {
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t.Helper()
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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t.Fatal(err)
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}
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root := &x509.Certificate{
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SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Scert test CA"},
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NotBefore: time.Now().Add(-time.Hour), NotAfter: time.Now().Add(48 * time.Hour),
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IsCA: true, BasicConstraintsValid: true,
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KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageDigitalSignature,
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}
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der, err := x509.CreateCertificate(rand.Reader, root, root, &key.PublicKey, key)
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if err != nil {
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t.Fatal(err)
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}
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root, err = x509.ParseCertificate(der)
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if err != nil {
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t.Fatal(err)
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}
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fixture := &rotationFixture{root: root, key: key, directory: t.TempDir(), pool: x509.NewCertPool()}
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fixture.pool.AddCert(root)
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fixture.firstCertificate, fixture.firstKey = fixture.issue(t, 2, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(24*time.Hour))
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cfg := readyTestConfig(fixture.directory)
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cfg.Admin = config.AdminConfig{Username: "admin", Email: "admin@example.test", PasswordHash: "test-only-hash"}
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cfg.DNS.VerificationState = "verified"
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cfg.Web.Hostname = "management.example.test"
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cfg.Server.Host = "127.0.0.1"
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cfg.Server.TLSCert, cfg.Server.TLSKey = fixture.firstCertificate, fixture.firstKey
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configPath := filepath.Join(fixture.directory, "scert.json")
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if err := cfg.Save(configPath); err != nil {
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t.Fatal(err)
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}
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fixture.server = New(Dependencies{Config: cfg, ConfigPath: configPath})
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fixture.server.tlsRoots = fixture.pool
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server, err := fixture.server.prepareHTTPServer()
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if err != nil {
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t.Fatal(err)
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}
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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fixture.address = listener.Addr().String()
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done := make(chan error, 1)
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go func() { done <- server.ServeTLS(listener, "", "") }()
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t.Cleanup(func() {
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := fixture.server.Shutdown(ctx); err != nil {
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t.Error(err)
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}
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if err := <-done; !errors.Is(err, http.ErrServerClosed) {
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t.Errorf("HTTPS 服务退出异常：%v", err)
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}
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})
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return fixture
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}
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func (f *rotationFixture) issue(t *testing.T, serial int64, host string, before, after time.Time) (string, string) {
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t.Helper()
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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t.Fatal(err)
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}
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leaf := &x509.Certificate{
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SerialNumber: big.NewInt(serial), DNSNames: []string{host},
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IPAddresses: []net.IP{net.ParseIP("127.0.0.1")},
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NotBefore: before, NotAfter: after,
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KeyUsage: x509.KeyUsageDigitalSignature, ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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}
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der, err := x509.CreateCertificate(rand.Reader, leaf, f.root, &key.PublicKey, f.key)
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if err != nil {
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t.Fatal(err)
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}
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keyDER, err := x509.MarshalPKCS8PrivateKey(key)
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if err != nil {
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t.Fatal(err)
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}
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certificatePath := filepath.Join(f.directory, fmt.Sprintf("%d.pem", serial))
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keyPath := filepath.Join(f.directory, fmt.Sprintf("%d.key", serial))
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chain := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: der})
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chain = append(chain, pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: f.root.Raw})...)
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if err := os.WriteFile(certificatePath, chain, 0o600); err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(keyPath, pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: keyDER}), 0o600); err != nil {
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t.Fatal(err)
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}
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return certificatePath, keyPath
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}
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func (f *rotationFixture) serial() (int64, error) {
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connection, err := tls.DialWithDialer(&net.Dialer{Timeout: 3 * time.Second}, "tcp", f.address, &tls.Config{
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RootCAs: f.pool, ServerName: "management.example.test", MinVersion: tls.VersionTLS12,
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})
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if err != nil {
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return 0, err
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}
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defer connection.Close()
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return connection.ConnectionState().PeerCertificates[0].SerialNumber.Int64(), nil
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}
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func TestTLSCertificateRotationPersistsAndServesWithoutRestart(t *testing.T) {
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f := newRotationFixture(t)
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("初始证书异常：%d %v", serial, err)
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}
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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before := f.server.httpServer
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err != nil {
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t.Fatal(err)
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}
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if serial, err := f.serial(); err != nil || serial != 3 {
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t.Fatalf("新握手未使用新证书：%d %v", serial, err)
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}
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if f.server.httpServer != before {
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t.Fatal("证书更新不应替换 HTTP 服务")
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}
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stored, err := config.Load(f.server.configPath)
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if err != nil {
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t.Fatal(err)
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}
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if stored.Server.TLSCert != certificatePath || stored.Server.TLSKey != keyPath {
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t.Fatal("重启所需证书路径未持久化")
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}
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state, err := f.server.ManagementCertificate()
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if err != nil || state.CertificatePath != certificatePath || state.NotAfter.IsZero() {
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t.Fatalf("续期读取的证书状态异常：%+v %v", state, err)
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}
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if err := f.server.ActivateTLSCertificate(f.firstCertificate, f.firstKey); err != nil {
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t.Fatal(err)
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("旧证书回退失败：%d %v", serial, err)
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}
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stored, err = config.Load(f.server.configPath)
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if err != nil || stored.Server.TLSCert != f.firstCertificate {
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t.Fatalf("回退未持久化：%v", err)
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}
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}
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func TestManagementActivationRejectsChangedConfiguration(t *testing.T) {
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for _, field := range []string{"hostname", "dns", "mode", "certificate", "root"} {
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t.Run(field, func(t *testing.T) {
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f := newRotationFixture(t)
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state, err := f.server.ManagementCertificate()
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if err != nil {
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t.Fatal(err)
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}
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certificatePath, keyPath := f.issue(t, 3, state.Hostname, time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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f.server.configMu.Lock()
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switch field {
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case "hostname":
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f.server.config.Web.Hostname = "changed.example.test"
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case "dns":
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f.server.config.DNS.CredentialRef = "secret://dns/changed"
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case "mode":
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f.server.config.Server.HTTPSMode = "proxy"
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case "certificate":
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f.server.config.Server.TLSCert = "changed.pem"
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case "root":
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f.server.config.Paths.Certificate = "changed-root"
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}
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f.server.configMu.Unlock()
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if err := f.server.ActivateManagementCertificate(state, certificate.SavedResource{FullChainPath: certificatePath, PrivateKeyPath: keyPath}); err == nil {
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t.Fatal("签发期间配置变化未阻止覆盖")
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("拒绝更新后旧证书不可用：%d %v", serial, err)
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}
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})
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}
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}
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func TestManagementActivationUsesCurrentSnapshot(t *testing.T) {
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f := newRotationFixture(t)
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state, err := f.server.ManagementCertificate()
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if err != nil {
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t.Fatal(err)
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}
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if !state.DNSVerified || len(state.Request.Domains) != 1 || state.Request.Domains[0] != state.Hostname {
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t.Fatalf("管理续期状态不完整：%+v", state)
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}
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certificatePath, keyPath := f.issue(t, 3, state.Hostname, time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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if err := f.server.ActivateManagementCertificate(state, certificate.SavedResource{FullChainPath: certificatePath, PrivateKeyPath: keyPath}); err != nil {
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t.Fatal(err)
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}
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if serial, err := f.serial(); err != nil || serial != 3 {
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t.Fatalf("管理证书未激活：%d %v", serial, err)
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}
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}
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func TestManagementActivationChecksActualExpiryInsteadOfSavedMetadata(t *testing.T) {
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f := newRotationFixture(t)
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state, err := f.server.ManagementCertificate()
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if err != nil {
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t.Fatal(err)
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}
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certificatePath, keyPath := f.issue(t, 3, state.Hostname, time.Now().Add(-time.Hour), state.NotAfter.Add(-time.Hour))
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err = f.server.ActivateManagementCertificate(state, certificate.SavedResource{
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FullChainPath: certificatePath, PrivateKeyPath: keyPath, NotAfter: state.NotAfter.Add(time.Hour),
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})
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if err == nil {
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t.Fatal("候选元数据不能替代证书实际有效期检查")
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("拒绝短有效期候选后旧证书不可用：%d %v", serial, err)
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}
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}
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func TestTLSCertificateRotationRejectsInvalidCandidates(t *testing.T) {
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f := newRotationFixture(t)
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now := time.Now()
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tests := []struct {
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name, host string
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before, after time.Time
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}{
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{"wrong-host", "other.example.test", now.Add(-time.Hour), now.Add(time.Hour)},
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{"expired", "management.example.test", now.Add(-2 * time.Hour), now.Add(-time.Hour)},
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{"future", "management.example.test", now.Add(time.Hour), now.Add(2 * time.Hour)},
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}
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for i, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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certPath, keyPath := f.issue(t, int64(i+10), test.host, test.before, test.after)
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if err := f.server.ActivateTLSCertificate(certPath, keyPath); err == nil {
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t.Fatal("无效证书不应生效")
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}
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})
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}
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_, wrongKey := f.issue(t, 20, "management.example.test", now.Add(-time.Hour), now.Add(time.Hour))
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if err := f.server.ActivateTLSCertificate(f.firstCertificate, wrongKey); err == nil {
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t.Fatal("不匹配的私钥不应生效")
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}
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if err := f.server.ActivateTLSCertificate(filepath.Join(f.directory, "missing.pem"), wrongKey); err == nil {
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t.Fatal("缺失的证书不应生效")
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("失败后旧证书不可用：%d %v", serial, err)
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}
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stored, err := config.Load(f.server.configPath)
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if err != nil || stored.Server.TLSCert != f.firstCertificate {
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t.Fatalf("失败不应修改配置：%v", err)
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}
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}
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func TestTLSCertificateRotationPreservesStateWhenPersistenceFails(t *testing.T) {
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f := newRotationFixture(t)
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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// 用目录占据目标文件，跨平台触发确定的持久化失败。
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f.server.configPath = t.TempDir()
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err == nil {
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t.Fatal("配置写入失败不应报告成功")
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("配置写入失败后旧证书不可用：%d %v", serial, err)
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}
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state, err := f.server.ManagementCertificate()
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if err != nil || state.CertificatePath != f.firstCertificate {
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t.Fatalf("配置写入失败不应修改内存：%+v %v", state, err)
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}
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}
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func TestTLSCertificateRotationConcurrentHandshakes(t *testing.T) {
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f := newRotationFixture(t)
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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var workers sync.WaitGroup
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for range 4 {
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workers.Add(1)
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go func() {
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defer workers.Done()
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for range 15 {
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serial, err := f.serial()
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if err != nil || (serial != 2 && serial != 3) {
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t.Errorf("并发握手失败：%d %v", serial, err)
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return
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}
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}
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}()
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}
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for range 6 {
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err != nil {
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t.Error(err)
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}
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if err := f.server.ActivateTLSCertificate(f.firstCertificate, f.firstKey); err != nil {
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t.Error(err)
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}
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}
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workers.Wait()
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}
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func TestTLSCertificateRotationRejectsUntrustedChain(t *testing.T) {
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f := newRotationFixture(t)
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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f.server.tlsRoots = x509.NewCertPool()
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err == nil {
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t.Fatal("不可信证书链不应生效")
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}
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if serial, err := f.serial(); err != nil || serial != 2 {
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t.Fatalf("不可信更新不应影响旧证书：%d %v", serial, err)
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}
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}
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func TestTLSCertificateRotationWithoutSNI(t *testing.T) {
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f := newRotationFixture(t)
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err != nil {
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t.Fatal(err)
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}
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connection, err := tls.DialWithDialer(&net.Dialer{Timeout: 3 * time.Second}, "tcp", f.address, &tls.Config{
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RootCAs: f.pool, ServerName: "127.0.0.1", MinVersion: tls.VersionTLS12,
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})
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if err != nil {
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t.Fatal(err)
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}
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defer connection.Close()
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if serial := connection.ConnectionState().PeerCertificates[0].SerialNumber.Int64(); serial != 3 {
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t.Fatalf("无 SNI 的握手未使用新证书：%d", serial)
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}
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}
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func TestTLSCertificateRotationSurvivesServerRestart(t *testing.T) {
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f := newRotationFixture(t)
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certificatePath, keyPath := f.issue(t, 3, "management.example.test", time.Now().Add(-time.Hour), time.Now().Add(30*time.Hour))
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if err := f.server.ActivateTLSCertificate(certificatePath, keyPath); err != nil {
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t.Fatal(err)
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}
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stored, err := config.Load(f.server.configPath)
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if err != nil {
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t.Fatal(err)
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}
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ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
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defer cancel()
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if err := f.server.Shutdown(ctx); err != nil {
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t.Fatal(err)
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}
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restarted := New(Dependencies{Config: stored, ConfigPath: f.server.configPath})
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server, err := restarted.prepareHTTPServer()
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if err != nil {
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t.Fatal(err)
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}
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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done := make(chan error, 1)
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go func() { done <- server.ServeTLS(listener, "", "") }()
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t.Cleanup(func() {
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := restarted.Shutdown(ctx); err != nil {
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t.Error(err)
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}
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if err := <-done; !errors.Is(err, http.ErrServerClosed) {
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t.Error(err)
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}
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})
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connection, err := tls.DialWithDialer(&net.Dialer{Timeout: 3 * time.Second}, "tcp", listener.Addr().String(), &tls.Config{
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RootCAs: f.pool, ServerName: "management.example.test", MinVersion: tls.VersionTLS12,
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})
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if err != nil {
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t.Fatal(err)
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}
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defer connection.Close()
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if serial := connection.ConnectionState().PeerCertificates[0].SerialNumber.Int64(); serial != 3 {
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t.Fatalf("重新启动未使用已持久化的新证书：%d", serial)
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}
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}
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