add user account email verificiation (#977)

* add user account email verificiation

includes server and client code to:

* enable verificationRequired via custom config
* send verification email with registration
* ask for verification email
* verify via email
* prevent login if not verified and required
* conditional client links to ask for new verification email

* allow login for verified=null

these are users created when verification not required
should still be able to login when verification is enabled

* refactor email verifcation pr

* change naming from verified to emailVerified
* change naming from askVerifyEmail to askSendVerifyEmail
* undo unrelated automatic prettier formatting on api/config
* use redirectService for home
* remove redundant success notification on email verified

* revert test.yaml smpt host

1 files changed, 45 insertions, 1 deletions

diff --git a/server/middlewares/validators/users.ts b/server/middlewares/validators/users.ts
index 6c5e783e9..a595c39ec 100644
--- a/server/middlewares/validators/users.ts
+++ b/server/middlewares/validators/users.ts
@@ -248,6 +248,48 @@ const usersResetPasswordValidator = [
   }
 ]
 
+const usersAskSendVerifyEmailValidator = [
+  body('email').isEmail().not().isEmpty().withMessage('Should have a valid email'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking askUsersSendVerifyEmail parameters', { parameters: req.body })
+
+    if (areValidationErrors(req, res)) return
+    const exists = await checkUserEmailExist(req.body.email, res, false)
+    if (!exists) {
+      logger.debug('User with email %s does not exist (asking verify email).', req.body.email)
+      // Do not leak our emails
+      return res.status(204).end()
+    }
+
+    return next()
+  }
+]
+
+const usersVerifyEmailValidator = [
+  param('id').isInt().not().isEmpty().withMessage('Should have a valid id'),
+  body('verificationString').not().isEmpty().withMessage('Should have a valid verification string'),
+
+  async (req: express.Request, res: express.Response, next: express.NextFunction) => {
+    logger.debug('Checking usersVerifyEmail parameters', { parameters: req.params })
+
+    if (areValidationErrors(req, res)) return
+    if (!await checkUserIdExist(req.params.id, res)) return
+
+    const user = res.locals.user as UserModel
+    const redisVerificationString = await Redis.Instance.getVerifyEmailLink(user.id)
+
+    if (redisVerificationString !== req.body.verificationString) {
+      return res
+        .status(403)
+        .send({ error: 'Invalid verification string.' })
+        .end()
+    }
+
+    return next()
+  }
+]
+
 // ---------------------------------------------------------------------------
 
 export {
@@ -263,7 +305,9 @@ export {
   ensureUserRegistrationAllowedForIP,
   usersGetValidator,
   usersAskResetPasswordValidator,
-  usersResetPasswordValidator
+  usersResetPasswordValidator,
+  usersAskSendVerifyEmailValidator,
+  usersVerifyEmailValidator
 }
 
 // ---------------------------------------------------------------------------