fix(passwordless): Reduce db calls, run in parallel

Adds validations, reduces the number of database calls, separates
concers. reduces logic

server/utils/create-handled-error.js

@@ -16,3 +16,13 @@ export function wrapHandledError(err, {
   err[_handledError] = { type, message, redirectTo };
   return err;
 }
+
+export const createValidatorErrorFormatter = (type, redirectTo) =>
+  ({ msg }) => wrapHandledError(
+    new Error(msg),
+    {
+      type,
+      message: msg,
+      redirectTo
+    }
+  );

server/utils/middleware.js

@@ -43,3 +43,13 @@ export function ifNotVerifiedRedirectToSettings(req, res, next) {
   }
   return next();
 }
+
+export function ifUserRedirectTo(path = '/', status) {
+  status = status === 302 ? 302 : 301;
+  return (req, res, next) => {
+    if (req.user) {
+      return res.status(status).redirect(path);
+    }
+    return next();
+  };
+}