fix(api): add toLowerCase method to email (#38586)

api-server/common/models/User-Identity.js

@@ -8,6 +8,12 @@ import { wrapHandledError } from '../../server/utils/create-handled-error.js';
 
 // const log = debug('fcc:models:userIdent');
 
+export function ensureLowerCaseEmail(profile) {
+  return typeof profile?.emails?.[0]?.value === 'string'
+    ? profile.emails[0].value.toLowerCase()
+    : '';
+}
+
 export default function(UserIdent) {
   UserIdent.on('dataSourceAttached', () => {
     UserIdent.findOne$ = observeMethod(UserIdent, 'findOne');
@@ -41,10 +47,8 @@ export default function(UserIdent) {
       include: 'user'
     };
     // get the email from the auth0 (its expected from social providers)
-    const email =
-      profile && profile.emails && profile.emails[0]
-        ? profile.emails[0].value
-        : '';
+    const email = ensureLowerCaseEmail(profile);
+
     if (!isEmail('' + email)) {
       throw wrapHandledError(
         new Error('invalid or empty email received from auth0'),

api-server/common/models/User-Identity.test.js

@@ -0,0 +1,30 @@
+/* global expect */
+import { ensureLowerCaseEmail } from './User-Identity';
+
+test('returns lowercase email when one exists', () => {
+  const profile = {
+    id: 2,
+    emails: [{ value: 'Example@Mail.com', name: 'John Doe' }]
+  };
+  expect(ensureLowerCaseEmail(profile)).toBe('example@mail.com');
+});
+
+test('returns empty string when value is undefined', () => {
+  const profile = {
+    id: 4,
+    emails: []
+  };
+  expect(ensureLowerCaseEmail(profile)).toBe('');
+});
+
+test('returns empty string when emails is undefined', () => {
+  const profile = {
+    id: 5
+  };
+  expect(ensureLowerCaseEmail(profile)).toBe('');
+});
+
+test('returns empty string when profile is undefined', () => {
+  let profile;
+  expect(ensureLowerCaseEmail(profile)).toBe('');
+});