Working on password recovery

.envdev

@@ -1,5 +1,6 @@
 WEB_PROTOCOL=http
 WEB_ADDRESS=localhost
+WEB_RESET_ADDRESS=localhost/reset
 WEB_PORT=3200
 
 DB_HOSTNAME=database

README.md

@@ -83,4 +83,28 @@ Content-Type: application/json
 {
 	"password": "helloworld"
 }
+
+
+//DOCS: Send the link to recover a forgotten password
+POST /auth/recover
+Content-Type: application/json
+
+{
+	"email": "kayneruse@gmail.com"
+}
+
+
+//DOCS: Redirect the link to recover a password to the front-end
+GET /auth/reset?token=<token>
+
+//Result
+301 -> ${WEB_RESET_ADDRESS}?email=<email>&token=<token>
+
+
+//DOCS: Resets a password for the given email, correct token is required
+PATCH /auth/reset?email=<email>&token=<token>
+
+{
+	"password": "password"
+}
 ```

configure-script.js

@@ -30,6 +30,7 @@ const question = (prompt, def = null) => {
 	//project configuration
 	const appName = await question('App Name', 'auth');
 	const appWebAddress = await question('Web Addr', `${appName}.example.com`);
+	const resetAddress = await question('Reset Addr', `example.com/reset`);
 	const appPort = await question('App Port', '3200');
 
 	const appDBUser = await question('DB User', appName);
@@ -69,6 +70,7 @@ services:
     environment:
       - WEB_PROTOCOL=https
       - WEB_ADDRESS=${appWebAddress}
+	  - WEB_RESET_ADDRESS=${resetAddress}
       - WEB_PORT=${appPort}
       - DB_HOSTNAME=database
       - DB_DATABASE=${appName}

server/auth/index.js

@@ -14,6 +14,11 @@ router.post('/login', require('./login'));
 //refresh token
 router.post('/token', require('./token'));
 
+//password recover and reset
+router.post('/recover', require('./password-recover'));
+router.get('/reset', require('./password-redirect'));
+router.patch('/reset', require('./password-reset'));
+
 //middleware
 router.use(tokenAuth);
 

server/auth/password-recover.js

@@ -0,0 +1,106 @@
+//libraries
+const nodemailer = require('nodemailer');
+
+const { accounts, recovery } = require('../database/models');
+
+//utilities
+const uuid = require('../utilities/uuid');
+const validateEmail = require('../utilities/validate-email');
+
+//auth/recover
+const route = async (req, res) => {
+	//validate details
+	const validateErr = await validateDetails(req.body);
+	if (validateErr) {
+		return res.status(401).end(validateErr);
+	}
+
+	//recovery token
+	const token = uuid(32);
+
+	//send the recovery email
+	const emailErr = await sendRecoveryEmail(req.body.email, token);
+	if (emailErr) {
+		return res.status(500).send(emailErr);
+	}
+
+	//save the token
+	recovery.upsert({
+		email: req.body.email,
+		token: token
+	});
+
+	//finally
+	res.status(200).send("Validation email sent!");
+	return null;
+};
+
+const validateDetails = async (body) => {
+	//basic formatting
+	if (!validateEmail(body.email)) {
+		return 'Invalid email';
+	}
+
+	//check for existing email
+	const emailRecord = await accounts.findOne({
+		where: {
+			email: body.email
+		}
+	});
+
+	if (!emailRecord) {
+		return 'Invalid email';
+	}
+
+	//OK
+	return null;
+};
+
+const sendRecoveryEmail = async (email, token) => {
+	const addr = `${process.env.WEB_PROTOCOL}://${process.env.WEB_ADDRESS}/auth/validation?token=${token}`;
+	const msg = `Hello,
+
+Please visit the following link to reset your password: ${addr}
+
+If you did not request a password reset, you can safely ignore this message.
+`;
+
+	let transporter, info;
+
+	//what exactly is a transport?
+	try {
+		transporter = nodemailer.createTransport({
+			host: process.env.MAIL_SMTP,
+			port: 465,
+			secure: true,
+			auth: {
+			  user: process.env.MAIL_USERNAME,
+			  pass: process.env.MAIL_PASSWORD
+			},
+		});
+	}
+	catch(e) {
+		return `failed to create a mail transport: ${e}`;
+	}
+
+	// send mail with defined transport object
+	try {
+		info = await transporter.sendMail({
+			from: `recovery@${process.env.WEB_ADDRESS}`, //WARNING: google overwrites this
+			to: email,
+			subject: 'Password Recovery',
+			text: msg
+		});
+	}
+	catch(e) {
+		return `failed to send validation mail: ${e}`;
+	}
+
+	if (info.accepted[0] != email) {
+		return 'recovery email failed to send';
+	}
+
+	return null;
+};
+
+module.exports = route;

server/auth/password-redirect.js

@@ -0,0 +1,19 @@
+const { accounts, recovery } = require('../database/models');
+
+//auth/reset
+const route = async (req, res) => {
+	//verify the recovery record exists
+	const record = recovery.findOne({
+		token: req.query.token
+	});
+
+	if (!record) {
+		return res.status(401).end('Failed to recover a password');
+	}
+
+	//redirect to the front-end
+	res.redirect(`${process.env.WEB_PROTOCOL}${process.env.WEB_RESET_ADDRESS}?email=${record.email}&token=${record.token}`);
+	return null;
+};
+
+module.exports = route;

server/auth/password-reset.js

@@ -0,0 +1,59 @@
+//libraries
+const bcrypt = require('bcryptjs');
+
+const { accounts, recovery } = require('../database/models');
+
+//auth/reset
+const route = async (req, res) => {
+	//validate the given details
+	const validateErr = await validateDetails(req.query, req.body);
+	if (validateErr) {
+		return res.status(401).send(validateErr);
+	}
+
+	//generate the password hash
+	const hash = await bcrypt.hash(req.body.password, await bcrypt.genSalt(11));
+
+	//update the account data
+	accounts.update({
+		hash: hash
+	}, {
+		where: {
+			email: req.query.email
+		}
+	})
+
+	//delete from the recovery table
+	recovery.destroy({
+		where: {
+			email: req.query.email
+		}
+	});
+
+	return null;
+};
+
+const validateDetails = async (query, body) => {
+	//verify the recovery record exists
+	const record = recovery.findOne({
+		email: query.email,
+		token: query.token
+	});
+
+	if (!record) {
+		return 'Failed to recover a password';
+	}
+
+	//validate password
+	if (!body.password) {
+		return 'Missing password';
+	}
+
+	if (body.password.length < 8) {
+		return 'Password too short';
+	}
+
+	return null;
+};
+
+module.exports = route;

server/database/models/index.js

@@ -1,5 +1,6 @@
 module.exports = {
 	tokens: require('./tokens'),
 	accounts: require('./accounts'),
-	pendingSignups: require('./pending-signups')
+	pendingSignups: require('./pending-signups'),
+	recovery: require('./recovery')
 };

server/database/models/recovery.js

@@ -0,0 +1,6 @@
+const sequelize = require('..');
+
+module.exports = sequelize.define('recovery', {
+	token: 'varchar(320)',
+	email: 'varchar(320)'
+});