fix: LDAP Group filter doesn't work and throws "No Such Object" error on login

.changeset/wet-crabs-brush.md

@@ -0,0 +1,5 @@
+---
+"@rocket.chat/meteor": patch
+---
+
+Fixed LDAP "Group filter" malfunction, which prevented LDAP users from logging in.

apps/meteor/server/lib/ldap/Connection.ts

@@ -465,9 +465,9 @@ export class LDAPConnection {
 
 		searchLogger.debug({ msg: 'Group filter LDAP:', filter: searchOptions.filter });
 
-		const result = await this.searchRaw(this.options.baseDN, searchOptions);
+		const result = await this.searchAndCount(this.options.baseDN, searchOptions);
 
-		if (!Array.isArray(result) || result.length === 0) {
+		if (result === 0) {
 			return false;
 		}
 		return true;

apps/meteor/server/lib/ldap/Manager.ts

@@ -213,8 +213,18 @@ export class LDAPManager {
 				}
 			}
 
-			if (!(await ldap.isUserAcceptedByGroupFilter(escapedUsername, ldapUser.dn))) {
-				throw new Error('User not in a valid group');
+			const adminLdap = new LDAPConnection();
+			try {
+				try {
+					await adminLdap.connect();
+					if (!(await adminLdap.isUserAcceptedByGroupFilter(escapedUsername, ldapUser.dn))) {
+						throw new Error('User not in a valid group');
+					}
+				} catch (error) {
+					logger.error(error);
+				}
+			} finally {
+				adminLdap.disconnect();
 			}
 
 			return ldapUser;