node_modules: update (#297)

Co-authored-by: dawidd6 <9713907+dawidd6@users.noreply.github.com>

node_modules/nodemailer/lib/smtp-connection/index.js

@@ -51,9 +51,9 @@ function decodeServerResponse(str) {
  *  * **requireTLS** - forces the client to use STARTTLS
  *  * **name** - the name of the client server
  *  * **localAddress** - outbound address to bind to (see: http://nodejs.org/api/net.html#net_net_connect_options_connectionlistener)
- *  * **greetingTimeout** - Time to wait in ms until greeting message is received from the server (defaults to 10000)
- *  * **connectionTimeout** - how many milliseconds to wait for the connection to establish
- *  * **socketTimeout** - Time of inactivity until the connection is closed (defaults to 1 hour)
+ *  * **greetingTimeout** - Time to wait in ms until greeting message is received from the server (defaults to 30 seconds)
+ *  * **connectionTimeout** - how many milliseconds to wait for the connection to establish (defaults to 2 minutes)
+ *  * **socketTimeout** - Time of inactivity until the connection is closed (defaults to 10 minutes)
  *  * **dnsTimeout** - Time to wait in ms for the DNS requests to be resolved (defaults to 30 seconds)
  *  * **lmtp** - if true, uses LMTP instead of SMTP protocol
  *  * **logger** - bunyan compatible logger interface
@@ -211,6 +211,13 @@ class SMTPConnection extends EventEmitter {
          */
         this._closing = false;
 
+        /**
+         * Message DATA stream currently piped to the socket, if any. Tracked so
+         * close() can unpipe it before tearing the socket down.
+         * @private
+         */
+        this._currentDataStream = false;
+
         /**
          * Callbacks for socket's listeners
          */
@@ -470,6 +477,17 @@ class SMTPConnection extends EventEmitter {
 
         const socket = (this._socket && this._socket.socket) || this._socket;
 
+        // Detach any in-flight DATA stream from the socket so the source stream
+        // can be garbage-collected once the socket is gone.
+        if (this._currentDataStream) {
+            try {
+                this._currentDataStream.unpipe(this._socket);
+            } catch (_E) {
+                // ignore
+            }
+            this._currentDataStream = false;
+        }
+
         if (socket && !socket.destroyed) {
             try {
                 // Clear socket timeout to prevent timer leaks
@@ -820,7 +838,7 @@ class SMTPConnection extends EventEmitter {
             return;
         }
 
-        let data = (chunk || '').toString('binary');
+        let data = chunk.toString('binary');
         let lines = (this._remainder + data).split(/\r?\n/);
         let lastline;
 
@@ -953,7 +971,9 @@ class SMTPConnection extends EventEmitter {
      */
     _onEnd() {
         if (this._socket && !this._socket.destroyed) {
-            this._socket.destroy();
+            // Peer sent FIN — finish our half of the close gracefully rather
+            // than destroying. 'close' fires after the OS finalizes teardown.
+            this._socket.end();
         }
     }
 
@@ -1005,6 +1025,15 @@ class SMTPConnection extends EventEmitter {
             opts.servername = this.servername;
         }
 
+        // Remove all listeners from the plain socket to allow proper garbage
+        // collection. Used on both the TLS-success path and the synchronous
+        // tls.connect() throw path; either way the plain socket is done.
+        const removePlainSocketListeners = () => {
+            socketPlain.removeListener('close', this._onSocketClose);
+            socketPlain.removeListener('end', this._onSocketEnd);
+            socketPlain.removeListener('error', this._onSocketError);
+        };
+
         this.upgrading = true;
         // tls.connect is not an asynchronous function however it may still throw errors and requires to be wrapped with try/catch
         try {
@@ -1013,14 +1042,12 @@ class SMTPConnection extends EventEmitter {
                 this.upgrading = false;
                 this._socket.on('data', this._onSocketData);
 
-                // Remove all listeners from the plain socket to allow proper garbage collection
-                socketPlain.removeListener('close', this._onSocketClose);
-                socketPlain.removeListener('end', this._onSocketEnd);
-                socketPlain.removeListener('error', this._onSocketError);
+                removePlainSocketListeners();
 
                 return callback(null, true);
             });
         } catch (err) {
+            removePlainSocketListeners();
             return callback(err);
         }
 
@@ -1297,6 +1324,7 @@ class SMTPConnection extends EventEmitter {
             });
         }
 
+        this._currentDataStream = dataStream;
         dataStream.pipe(this._socket, {
             end: false
         });
@@ -1318,6 +1346,9 @@ class SMTPConnection extends EventEmitter {
         }
 
         dataStream.once('end', () => {
+            if (this._currentDataStream === dataStream) {
+                this._currentDataStream = false;
+            }
             this.logger.info(
                 {
                     tnx: 'message',