TLS and active FTP transfer about ftpserverlib HOT 4 CLOSED

diff --git a/transfer_active.go b/transfer_active.go
index 3255b53..a0f0d58 100644
--- a/transfer_active.go
+++ b/transfer_active.go
@@ -2,6 +2,7 @@
 package ftpserver
 
 import (
+       "crypto/tls"
        "errors"
        "fmt"
        "net"
@@ -21,9 +22,20 @@ func (c *clientHandler) handlePORT() error {
 
        c.writeMessage(StatusOK, "PORT command successful")
 
+       var tlsConfig *tls.Config
+
+       if c.transferTLS {
+               tlsConfig, err = c.server.driver.GetTLSConfig()
+               if err != nil {
+                       c.writeMessage(StatusSyntaxErrorNotRecognised, fmt.Sprintf("Problem parsing PORT: %v", err))
+                       return nil
+               }
+       }
+
        c.transfer = &activeTransferHandler{
-               raddr:    raddr,
-               settings: c.server.settings,
+               raddr:     raddr,
+               settings:  c.server.settings,
+               tlsConfig: tlsConfig,
        }
 
        return nil
@@ -31,9 +43,10 @@ func (c *clientHandler) handlePORT() error {
 
 // Active connection
 type activeTransferHandler struct {
-       raddr    *net.TCPAddr // Remote address of the client
-       conn     net.Conn     // Connection used to connect to him
-       settings *Settings    // Settings
+       raddr     *net.TCPAddr // Remote address of the client
+       conn      net.Conn     // Connection used to connect to him
+       settings  *Settings    // Settings
+       tlsConfig *tls.Config
 }
 
 func (a *activeTransferHandler) Open() (net.Conn, error) {
@@ -53,6 +66,10 @@ func (a *activeTransferHandler) Open() (net.Conn, error) {
                return nil, fmt.Errorf("could not establish active connection: %w", err)
        }
 
+       if a.tlsConfig != nil {
+               conn = tls.Server(conn, a.tlsConfig)
+       }
+
        // keep connection as it will be closed by Close()
        a.conn = conn

replace (
+       github.com/fclairamb/ftpserverlib => /home/nicola/goprojects/ftpserverlib