add handle options for sniffer

handler/forward/local/metadata.go

@@ -1,16 +1,27 @@
 package local
 
 import (
+	"crypto"
+	"crypto/tls"
+	"crypto/x509"
 	"time"
 
+	"github.com/go-gost/core/bypass"
 	mdata "github.com/go-gost/core/metadata"
-	mdutil "github.com/go-gost/core/metadata/util"
+	mdutil "github.com/go-gost/x/metadata/util"
+	"github.com/go-gost/x/registry"
 )
 
 type metadata struct {
-	readTimeout     time.Duration
+	readTimeout time.Duration
+
 	sniffing        bool
 	sniffingTimeout time.Duration
+
+	certificate *x509.Certificate
+	privateKey  crypto.PrivateKey
+	alpn        string
+	mitmBypass  bypass.Bypass
 }
 
 func (h *forwardHandler) parseMetadata(md mdata.Metadata) (err error) {
@@ -18,7 +29,25 @@ func (h *forwardHandler) parseMetadata(md mdata.Metadata) (err error) {
 	if h.md.readTimeout <= 0 {
 		h.md.readTimeout = 15 * time.Second
 	}
+
 	h.md.sniffing = mdutil.GetBool(md, "sniffing")
 	h.md.sniffingTimeout = mdutil.GetDuration(md, "sniffing.timeout")
+
+	certFile := mdutil.GetString(md, "mitm.certFile", "mitm.caCertFile")
+	keyFile := mdutil.GetString(md, "mitm.keyFile", "mitm.caKeyFile")
+	if certFile != "" && keyFile != "" {
+		tlsCert, err := tls.LoadX509KeyPair(certFile, keyFile)
+		if err != nil {
+			return err
+		}
+		h.md.certificate, err = x509.ParseCertificate(tlsCert.Certificate[0])
+		if err != nil {
+			return err
+		}
+		h.md.privateKey = tlsCert.PrivateKey
+	}
+	h.md.alpn = mdutil.GetString(md, "mitm.alpn")
+	h.md.mitmBypass = registry.BypassRegistry().Get(mdutil.GetString(md, "mitm.bypass"))
+
 	return
 }

handler/forward/remote/metadata.go

@@ -4,7 +4,7 @@ import (
 	"time"
 
 	mdata "github.com/go-gost/core/metadata"
-	mdutil "github.com/go-gost/core/metadata/util"
+	mdutil "github.com/go-gost/x/metadata/util"
 )
 
 type metadata struct {