feat(Send Email Node): New operation sendAndWait (#12775)

packages/nodes-base/nodes/EmailSend/v2/utils.ts

@@ -0,0 +1,70 @@
+import type {
+	IDataObject,
+	ICredentialsDecrypted,
+	ICredentialTestFunctions,
+	INodeCredentialTestResult,
+} from 'n8n-workflow';
+import { createTransport } from 'nodemailer';
+import type SMTPTransport from 'nodemailer/lib/smtp-transport';
+
+export type EmailSendOptions = {
+	appendAttribution?: boolean;
+	allowUnauthorizedCerts?: boolean;
+	attachments?: string;
+	ccEmail?: string;
+	bccEmail?: string;
+	replyTo?: string;
+};
+
+export function configureTransport(credentials: IDataObject, options: EmailSendOptions) {
+	const connectionOptions: SMTPTransport.Options = {
+		host: credentials.host as string,
+		port: credentials.port as number,
+		secure: credentials.secure as boolean,
+	};
+
+	if (credentials.secure === false) {
+		connectionOptions.ignoreTLS = credentials.disableStartTls as boolean;
+	}
+
+	if (typeof credentials.hostName === 'string' && credentials.hostName) {
+		connectionOptions.name = credentials.hostName;
+	}
+
+	if (credentials.user || credentials.password) {
+		connectionOptions.auth = {
+			user: credentials.user as string,
+			pass: credentials.password as string,
+		};
+	}
+
+	if (options.allowUnauthorizedCerts === true) {
+		connectionOptions.tls = {
+			rejectUnauthorized: false,
+		};
+	}
+
+	return createTransport(connectionOptions);
+}
+
+export async function smtpConnectionTest(
+	this: ICredentialTestFunctions,
+	credential: ICredentialsDecrypted,
+): Promise<INodeCredentialTestResult> {
+	const credentials = credential.data!;
+	const transporter = configureTransport(credentials, {});
+	try {
+		await transporter.verify();
+		return {
+			status: 'OK',
+			message: 'Connection successful!',
+		};
+	} catch (error) {
+		return {
+			status: 'Error',
+			message: error.message,
+		};
+	} finally {
+		transporter.close();
+	}
+}