Commit project

middleware/auth.js

@@ -0,0 +1,121 @@
+'use strict';
+
+const express     = require('express');
+const passport    = require('passport');
+const validator   = require('validator');
+const config      = require('../etc');
+const router      = new express.Router();
+const Merchant    = require('mongoose').model('Merchant');
+const Response    = require('../etc/responses.json');
+
+
+function validateSignupForm(payload, lang) {
+	var errors = {};
+	let isFormValid = true;
+	let message = '';
+
+	if (!payload || typeof payload.merchant_email !== 'string' || !validator.isEmail(payload.merchant_email)) {
+		isFormValid = false;
+		message = Response.r85[lang];
+		errors = 'e33';
+	}
+
+	if (!payload || typeof payload.password !== 'string' || payload.password.trim().length < 3) {
+		isFormValid = false;
+		message = Response.r86[lang];
+		errors = 'e34';
+	}
+
+	if (!payload || typeof payload.merchant_name !== 'string' || payload.merchant_name.trim().length === 0) {
+		isFormValid = false;
+		message = Response.r87[lang];
+		errors = 'e35';
+	}
+
+	return {
+		success: isFormValid,
+		message,
+		errors
+	};
+}
+
+router.post('/signup', (req, res, next) => {
+	var lang;
+  if (req.query.language) {
+    lang = req.query.language;
+		res.locals.lang = lang;
+  }
+  else if (req.body.language) {
+    lang = req.body.language;
+		res.locals.lang = lang;
+  }
+  else {
+    req.body.language = 'en';
+		res.locals.lang = lang;
+  }
+  
+	const validationResult = validateSignupForm(req.body, lang);
+	if (!validationResult.success) {
+		return res.status(400).json({
+			success: false,
+			message: validationResult.message,
+			error_code: validationResult.errors
+		});
+	}
+	
+	// Get the next higher merchant number
+	Merchant.findOne({}).sort({number: -1}).limit(1).exec((err, doc) => {
+		if (err) return res.status(500).json({
+			success: false,
+			message: Response.r0[lang],
+			error_code: 'e0'
+		});
+		if (!doc) {
+			// There are no merchants on the database. Create the very first one.
+      req.body.number = 1;
+			next();
+		}
+		else {
+			req.body.number = doc.number + 1;
+      next();
+		}
+	});
+}, (req, res, next) => {
+	let lang = res.locals.lang;
+	
+	return passport.authenticate('local-signup', (err, doc) => {
+		if (err) {
+			if (err.name === 'MongoError' && err.code === 11000) {
+				// the 11000 Mongo code is for a duplication email error
+				// the 409 HTTP status code is for conflict error
+				return res.status(409).json({
+					success: false,
+					message: Response.r90[lang],
+					error_code: 'e36'
+				});
+			}
+
+			return res.status(400).json({
+				success: false,
+				message: Response.r90[lang],
+				error_code: 'e36'
+			});
+		}
+		
+		if (!doc) {
+			return res.status(400).json({
+				success: false,
+				message: Response.r92[lang],
+				error_code: 'e37'
+			});
+		}
+
+		return res.status(200).json({
+			success: true,
+			message: 'Merchant ' + req.body.merchant_name + Response.r93[lang],
+			merchant_id: doc._id
+		});
+	})(req, res, next);
+});
+
+module.exports = router;