Improve: add session cache for trojan

adapters/outbound/trojan.go

@@ -76,10 +76,11 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 	server := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 
 	tOption := &trojan.Option{
-		Password:       option.Password,
-		ALPN:           option.ALPN,
-		ServerName:     option.Server,
-		SkipCertVerify: option.SkipCertVerify,
+		Password:           option.Password,
+		ALPN:               option.ALPN,
+		ServerName:         option.Server,
+		SkipCertVerify:     option.SkipCertVerify,
+		ClientSessionCache: getClientSessionCache(),
 	}
 
 	if option.SNI != "" {

component/trojan/trojan.go

@@ -28,10 +28,11 @@ var (
 )
 
 type Option struct {
-	Password       string
-	ALPN           []string
-	ServerName     string
-	SkipCertVerify bool
+	Password           string
+	ALPN               []string
+	ServerName         string
+	SkipCertVerify     bool
+	ClientSessionCache tls.ClientSessionCache
 }
 
 type Trojan struct {
@@ -50,6 +51,7 @@ func (t *Trojan) StreamConn(conn net.Conn) (net.Conn, error) {
 		MinVersion:         tls.VersionTLS12,
 		InsecureSkipVerify: t.option.SkipCertVerify,
 		ServerName:         t.option.ServerName,
+		ClientSessionCache: t.option.ClientSessionCache,
 	}
 
 	tlsConn := tls.Client(conn, tlsConfig)