NodeJSとMySQLを使用した安全なパスワードフローの作成

 $ sequelize model:create --name ResetToken --attributes email:string,token:string,expiration:date,used:integer $ sequelize db:migrate

 CREATE TABLE `ResetTokens` ( `id` int(11) NOT NULL AUTO_INCREMENT, `email` varchar(255) DEFAULT NULL, `token` varchar(255) DEFAULT NULL, `expiration` datetime DEFAULT NULL, `createdAt` datetime NOT NULL, `updatedAt` datetime NOT NULL, `used` int(11) NOT NULL DEFAULT '0', PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=21 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

 mysql> describe ResetTokens; +------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | email | varchar(255) | YES | | NULL | | | token | varchar(255) | YES | | NULL | | | expiration | datetime | YES | | NULL | | | createdAt | datetime | NO | | NULL | | | updatedAt | datetime | NO | | NULL | | | used | int(11) | NO | | 0 | | +------------+--------------+------+-----+---------+----------------+ 7 rows in set (0.00 sec)

 router.post('/forgot-password', async function(req, res, next) { //ensure that you have a user with this email var email = await User.findOne({where: { email: req.body.email }}); if (email == null) { /** * we don't want to tell attackers that an * email doesn't exist, because that will let * them use this form to find ones that do * exist. **/ return res.json({status: 'ok'}); } /** * Expire any tokens that were previously * set for this user. That prevents old tokens * from being used. **/ await ResetToken.update({ used: 1 }, { where: { email: req.body.email } }); //Create a random reset token var fpSalt = crypto.randomBytes(64).toString('base64'); //token expires after one hour var expireDate = new Date(new Date().getTime() + (60 * 60 * 1000)) //insert token data into DB await ResetToken.create({ email: req.body.email, expiration: expireDate, token: fpSalt, used: 0 }); //create email const message = { from: process.env.SENDER_ADDRESS, to: req.body.email, replyTo: process.env.REPLYTO_ADDRESS, subject: process.env.FORGOT_PASS_SUBJECT_LINE, text: 'To reset your password, please click the link below.\n\nhttps://'+process.env.DOMAIN+'/user/reset-password?token='+encodeURIComponent(token)+'&email='+req.body.email }; //send email transport.sendMail(message, function (err, info) { if(err) { console.log(err)} else { console.log(info); } }); return res.json({status: 'ok'}); });

 extends ../layout block content div.container div.row div.col h1 Forgot password p Enter your email address below. If we have it on file, we will send you a reset email. div.forgot-message.alert.alert-success() Email address received. If you have an email on file we will send you a reset email. Please wait a few minutes and check your spam folder if you don't see it. form#forgotPasswordForm.form-inline(onsubmit="return false;") div.form-group label.sr-only(for="email") Email address: input.form-control.mr-2#emailFp(type='email', name='email', placeholder="Email address") div.form-group.mt-1.text-center button#fpButton.btn.btn-success.mb-2(type='submit') Send email script. $('#fpButton').on('click', function() { $.post('/user/forgot-password', { email: $('#emailFp').val(), }, function(resp) { $('.forgot-message').show(); $('#forgotPasswordForm').remove(); }); });

 router.get('/reset-password', async function(req, res, next) { /** * This code clears all expired tokens. You * should move this to a cronjob if you have a * big site. We just include this in here as a * demonstration. **/ await ResetToken.destroy({ where: { expiration: { [Op.lt]: Sequelize.fn('CURDATE')}, } }); //find the token var record = await ResetToken.findOne({ where: { email: req.query.email, expiration: { [Op.gt]: Sequelize.fn('CURDATE')}, token: req.query.token, used: 0 } }); if (record == null) { return res.render('user/reset-password', { message: 'Token has expired. Please try password reset again.', showForm: false }); } res.render('user/reset-password', { showForm: true, record: record }); });

 router.post('/reset-password', async function(req, res, next) { //compare passwords if (req.body.password1 !== req.body.password2) { return res.json({status: 'error', message: 'Passwords do not match. Please try again.'}); } /** * Ensure password is valid (isValidPassword * function checks if password is >= 8 chars, alphanumeric, * has special chars, etc) **/ if (!isValidPassword(req.body.password1)) { return res.json({status: 'error', message: 'Password does not meet minimum requirements. Please try again.'}); } var record = await ResetToken.findOne({ where: { email: req.body.email, expiration: { [Op.gt]: Sequelize.fn('CURDATE')}, token: req.body.token, used: 0 } }); if (record == null) { return res.json({status: 'error', message: 'Token not found. Please try the reset password process again.'}); } var upd = await ResetToken.update({ used: 1 }, { where: { email: req.body.email } }); var newSalt = crypto.randomBytes(64).toString('hex'); var newPassword = crypto.pbkdf2Sync(req.body.password1, newSalt, 10000, 64, 'sha512').toString('base64'); await User.update({ password: newPassword, salt: newSalt }, { where: { email: req.body.email } }); return res.json({status: 'ok', message: 'Password reset. Please login with your new password.'}); }); And again, the view: extends ../layout block content div.container div.row div.col h1 Reset password p Enter your new password below. if message div.reset-message.alert.alert-warning #{message} else div.reset-message.alert() if showForm form#resetPasswordForm(onsubmit="return false;") div.form-group label(for="password1") New password: input.form-control#password1(type='password', name='password1') small.form-text.text-muted Password must be 8 characters or more. div.form-group label(for="password2") Confirm new password input.form-control#password2(type='password', name='password2') small.form-text.text-muted Both passwords must match. input#emailRp(type='hidden', name='email', value=record.email) input#tokenRp(type='hidden', name='token', value=record.token) div.form-group button#rpButton.btn.btn-success(type='submit') Reset password script. $('#rpButton').on('click', function() { $.post('/user/reset-password', { password1: $('#password1').val(), password2: $('#password2').val(), email: $('#emailRp').val(), token: $('#tokenRp').val() }, function(resp) { if (resp.status == 'ok') { $('.reset-message').removeClass('alert-danger').addClass('alert-success').show().text(resp.message); $('#resetPasswordForm').remove(); } else { $('.reset-message').removeClass('alert-success').addClass('alert-danger').show().text(resp.message); } }); });