env, mailer, README

utils/mailer.js

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+const mailer = require("nodemailer");
+const logger = require("./logger")(module);
+
+// Creates a mailer transporter object with authentication and base config
+const transport = mailer.createTransport({
+	host: "smtp.gmail.com",
+	port: 465,
+	secure: true,
+	service: "gmail",
+	auth: {
+		user: process.env.AUTOMAILER_ID,
+		pass: process.env.AUTOMAILER_APP_PASSWD,
+	}
+});
+
+/**
+ * Sends a mail from web user to a mail inside organization
+ * @param {string} mailTarget Target mail - must be within organization
+ * @param {string} mailSubject Mail subject
+ * @param {{name: string, email: string, message: string}} userData User details: name, email, and message
+ */
+const inboundMailer = (mailTarget, mailSubject, userData) => {
+	if (!mailTarget.endsWith("cegtechforum.in")) {
+		throw new Error("Invalid target mail domain.");
+	}
+
+	const message = {
+		to: mailTarget,
+		subject: mailSubject,
+		html:
+			"<p>Name: " + userData.name + "</p><p>Email: " + userData.email + "</p><br/><p>Message:<br/>" + userData.message + "</p>"
+	};
+
+	transport.sendMail(message, (err, info) => {
+		if (err) {
+			logger.error("Failure: QUERY mail NOT sent", { err, userData });
+		} else {
+			logger.info("Success: QUERY mail sent", { info });
+		}
+	});
+};
+
+module.exports = {
+	inboundMailer
+}