feat: existing user can sign in with sso

apps/OpenSignServer/index.js

@@ -18,7 +18,7 @@ import { createTransport } from 'nodemailer';
 import { app as v1 } from './cloud/customRoute/v1/apiV1.js';
 import { PostHog } from 'posthog-node';
 import { useLocal } from './Utils.js';
-
+import { SSOAuth } from './auth/authadapter.js';
 let fsAdapter;
 if (useLocal !== 'true') {
   try {
@@ -147,14 +147,7 @@ export const config = {
     google: {
       enabled: true,
     },
-    ldap: {
-      enabled: true,
-      url: 'ldap://ldap.forumsys.com:389',
-      suffix: 'dc=example,dc=com',
-      // dn: 'ou=mathematicians, dc=example, dc=com',
-      groupCn: 'mathematicians',
-      groupFilter: '(&(uniqueMember=uid=,dc=example,dc=com)(objectClass=groupOfUniqueNames))',
-    },
+    sso: SSOAuth,
   },
 };
 // Client-keys like the javascript key or the .NET key are not necessary with parse-server