Improve: add session cache for trojan

adapters/outbound/trojan.go

@@ -80,6 +80,7 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 		ALPN:               option.ALPN,
 		ServerName:         option.Server,
 		SkipCertVerify:     option.SkipCertVerify,
+		ClientSessionCache: getClientSessionCache(),
 	}
 
 	if option.SNI != "" {

component/trojan/trojan.go

@@ -32,6 +32,7 @@ type Option struct {
 	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)