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Add self sign cert support
This commit is contained in:
parent
852829b9dc
commit
abe3dc6039
50
common/tls/mkcert.go
Normal file
50
common/tls/mkcert.go
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@ -0,0 +1,50 @@
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package tls
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import (
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"crypto/rand"
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"crypto/rsa"
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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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"time"
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)
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func GenerateKeyPair(serverName string) (*tls.Certificate, error) {
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key, err := rsa.GenerateKey(rand.Reader, 2048)
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if err != nil {
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return nil, err
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}
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serialNumber, err := rand.Int(rand.Reader, new(big.Int).Lsh(big.NewInt(1), 128))
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if err != nil {
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return nil, err
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}
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template := &x509.Certificate{
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SerialNumber: serialNumber,
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NotBefore: time.Now().Add(time.Hour * -1),
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NotAfter: time.Now().Add(time.Hour),
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KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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BasicConstraintsValid: true,
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Subject: pkix.Name{
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CommonName: serverName,
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},
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DNSNames: []string{serverName},
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}
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publicDer, err := x509.CreateCertificate(rand.Reader, template, template, key.Public(), key)
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if err != nil {
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return nil, err
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}
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privateDer, err := x509.MarshalPKCS8PrivateKey(key)
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if err != nil {
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return nil, err
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}
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publicPem := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: publicDer})
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privPem := pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: privateDer})
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keyPair, err := tls.X509KeyPair(publicPem, privPem)
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if err != nil {
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return nil, err
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}
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return &keyPair, err
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}
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@ -34,6 +34,8 @@ func (c *STDServerConfig) SetNextProtos(nextProto []string) {
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c.config.NextProtos = nextProto
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}
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var errInsecureUnused = E.New("tls: insecure unused")
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func newSTDServer(ctx context.Context, logger log.Logger, options option.InboundTLSOptions) (ServerConfig, error) {
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if !options.Enabled {
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return nil, nil
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@ -46,6 +48,9 @@ func newSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
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if err != nil {
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return nil, err
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}
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if options.Insecure {
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return nil, errInsecureUnused
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}
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} else {
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tlsConfig = &tls.Config{}
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}
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@ -102,17 +107,23 @@ func newSTDServer(ctx context.Context, logger log.Logger, options option.Inbound
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}
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key = content
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}
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if certificate == nil {
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return nil, E.New("missing certificate")
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if certificate == nil && key == nil && options.Insecure {
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tlsConfig.GetCertificate = func(info *tls.ClientHelloInfo) (*tls.Certificate, error) {
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return GenerateKeyPair(info.ServerName)
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}
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} else {
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if certificate == nil {
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return nil, E.New("missing certificate")
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} else if key == nil {
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return nil, E.New("missing key")
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}
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keyPair, err := tls.X509KeyPair(certificate, key)
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if err != nil {
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return nil, E.Cause(err, "parse x509 key pair")
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}
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tlsConfig.Certificates = []tls.Certificate{keyPair}
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}
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if key == nil {
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return nil, E.New("missing key")
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}
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keyPair, err := tls.X509KeyPair(certificate, key)
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if err != nil {
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return nil, E.Cause(err, "parse x509 key pair")
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}
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tlsConfig.Certificates = []tls.Certificate{keyPair}
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}
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return &STDServerConfig{
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config: tlsConfig,
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@ -3,6 +3,7 @@ package option
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type InboundTLSOptions struct {
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Enabled bool `json:"enabled,omitempty"`
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ServerName string `json:"server_name,omitempty"`
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Insecure bool `json:"insecure,omitempty"`
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ALPN Listable[string] `json:"alpn,omitempty"`
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MinVersion string `json:"min_version,omitempty"`
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MaxVersion string `json:"max_version,omitempty"`
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