Function GetTLSConfigs

internal/tlstest/tls.go:22–136

GetTLSConfigs generates TLS configurations for a test server and client that trust each other using an in-memory certificate authority.

()

// GetTLSConfigs generates TLS configurations for a test server and client that
// trust each other using an in-memory certificate authority.
func GetTLSConfigs() (serverTLSConf, clientTLSConf *tls.Config, err error) { //nolint:nonamedreturns // gocritic unnamedResult prefers naming server and client TLS configurations along with the error
	// set up our CA certificate
	ca := &x509.Certificate{
		SerialNumber: big.NewInt(2021),
		Subject: pkix.Name{
			Organization:  []string{"Fiber"},
			Country:       []string{"NL"},
			Province:      []string{""},
			Locality:      []string{"Amsterdam"},
			StreetAddress: []string{"Huidenstraat"},
			PostalCode:    []string{"1011 AA"},
		},
		NotBefore:             time.Now(),
		NotAfter:              time.Now().AddDate(10, 0, 0),
		IsCA:                  true,
		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth, x509.ExtKeyUsageServerAuth},
		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
		BasicConstraintsValid: true,
	}

	// create our private and public key
	caPrivateKey, err := rsa.GenerateKey(rand.Reader, 4096)
	if err != nil {
		return nil, nil, fmt.Errorf("generate CA key: %w", err)
	}

	// create the CA
	caBytes, err := x509.CreateCertificate(rand.Reader, ca, ca, &caPrivateKey.PublicKey, caPrivateKey)
	if err != nil {
		return nil, nil, fmt.Errorf("create CA certificate: %w", err)
	}

	// pem encode
	var caPEM bytes.Buffer
	if err = pem.Encode(&caPEM, &pem.Block{
		Type:  "CERTIFICATE",
		Bytes: caBytes,
	}); err != nil {
		return nil, nil, fmt.Errorf("encode CA cert: %w", err)
	}

	var caPrivKeyPEM bytes.Buffer
	if err = pem.Encode(&caPrivKeyPEM, &pem.Block{
		Type:  "RSA PRIVATE KEY",
		Bytes: x509.MarshalPKCS1PrivateKey(caPrivateKey),
	}); err != nil {
		return nil, nil, fmt.Errorf("encode CA private key: %w", err)
	}

	// set up our server certificate
	cert := &x509.Certificate{
		SerialNumber: big.NewInt(2021),
		Subject: pkix.Name{
			Organization:  []string{"Fiber"},
			Country:       []string{"NL"},
			Province:      []string{""},
			Locality:      []string{"Amsterdam"},
			StreetAddress: []string{"Huidenstraat"},