node_modules: update (#344)

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

node_modules/nodemailer/dist/esm/mailer/index.js

@@ -119,6 +119,11 @@ class Mail extends EventEmitter {
             this.getSocket = false;
         }
         const mail = new MailMessage(this, data);
+        // a failed message is not going to be read anymore, release its content streams
+        const fail = (err) => {
+            mail.releaseStreams();
+            done(err);
+        };
         this.logger.debug({
             tnx: 'transport',
             name: this.transporter.name,
@@ -132,7 +137,7 @@ class Mail extends EventEmitter {
                     tnx: 'plugin',
                     action: 'compile'
                 }, 'PluginCompile Error: %s', err.message);
-                return done(err);
+                return fail(err);
             }
             let recipientCount;
             try {
@@ -149,7 +154,7 @@ class Mail extends EventEmitter {
                     tnx: 'transport',
                     action: 'send'
                 }, 'Compile Error: %s', err.message);
-                return done(err);
+                return fail(err);
             }
             const maxRecipients = mail.data.maxRecipients === undefined ? DEFAULT_MAX_RECIPIENTS : mail.data.maxRecipients;
             if (maxRecipients && recipientCount > maxRecipients) {
@@ -160,7 +165,7 @@ class Mail extends EventEmitter {
                     tnx: 'transport',
                     action: 'send'
                 }, 'Send Error: %s', err.message);
-                return done(err);
+                return fail(err);
             }
             this._processPlugins('stream', mail, err => {
                 if (err) {
@@ -169,7 +174,7 @@ class Mail extends EventEmitter {
                         tnx: 'plugin',
                         action: 'stream'
                     }, 'PluginStream Error: %s', err.message);
-                    return done(err);
+                    return fail(err);
                 }
                 if (mail.data.dkim || this.dkim) {
                     mail.message.processFunc(input => {
@@ -184,6 +189,7 @@ class Mail extends EventEmitter {
                 }
                 this.transporter.send(mail, (...args) => {
                     if (args[0]) {
+                        mail.releaseStreams();
                         this.logger.error({
                             err: args[0],
                             tnx: 'transport',
@@ -251,6 +257,11 @@ class Mail extends EventEmitter {
         // setup socket handler for the mailer object
         this.getSocket = (options, callback) => {
             const protocol = proxy.protocol.replace(/:$/, '').toLowerCase();
+            // The proxy handshake is a part of connecting and draws from the same deadline as the
+            // SMTP connection that follows it: whatever the proxy takes, the connection does not get
+            const configuredTimeout = Number(this.options.connectionTimeout) || 0;
+            const connectStartedAt = Number(options.connectStartedAt) || Date.now();
+            const connectionTimeout = configuredTimeout ? Math.max(connectStartedAt + configuredTimeout - Date.now(), 1) : undefined;
             if (this.meta.has('proxy_handler_' + protocol)) {
                 return this.meta.get('proxy_handler_' + protocol)(proxy, options, callback);
             }
@@ -258,7 +269,7 @@ class Mail extends EventEmitter {
                 // Connect using a HTTP CONNECT method
                 case 'http':
                 case 'https':
-                    httpProxyClient(proxy.href, options.port, options.host, this.options.tls || {}, (err, socket) => {
+                    httpProxyClient(proxy.href, options.port, options.host, connectionTimeout ? Object.assign({}, this.options.tls, { timeout: connectionTimeout }) : this.options.tls || {}, (err, socket) => {
                         if (err) {
                             return callback(err);
                         }
@@ -292,6 +303,9 @@ class Mail extends EventEmitter {
                             },
                             command: 'connect'
                         };
+                        if (connectionTimeout) {
+                            connectionOpts.timeout = connectionTimeout;
+                        }
                         if (proxy.username || proxy.password) {
                             const username = proxy.username || '';
                             const password = proxy.password || '';
@@ -321,11 +335,13 @@ class Mail extends EventEmitter {
                     if (net.isIP(proxy.hostname)) {
                         return connect(proxy.hostname);
                     }
-                    return dns.resolve(proxy.hostname, (err, address) => {
+                    // lookup goes through the hosts file and returns an IPv6 address as well,
+                    // the same way a connection to the proxy host would be resolved otherwise
+                    return dns.lookup(proxy.hostname, (err, address) => {
                         if (err) {
                             return callback(err);
                         }
-                        connect(Array.isArray(address) ? address[0] : address);
+                        connect(address);
                     });
                 }
             }