[Bug]: LDAP super slow

[gobiursus]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

After I put ldap server information into ldap integration on Nextcloud 29/30, it becomes super super slow, if you click "detect DN" or "test base DN" it will take forever and never give you a respond unless you refresh the page. And it will be same slow for every next step.

Steps to reproduce

1. Enable LDAP backend by following official tutorial.
2. Fill in all settings
3. Super Slow.

Expected behavior

Fast like normal

Nextcloud Server version

29

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.2

Web server

Nginx

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

Fresh Nextcloud Server install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

{"reqId":"1V2gJpYYhFLDu59TnF2s","level":2,"time":"2025-01-28T01:15:41+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): No LDAP Login Filter given!","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"1V2gJpYYhFLDu59TnF2s","level":2,"time":"2025-01-28T01:15:41+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): Not a single Base DN given.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"1V2gJpYYhFLDu59TnF2s","level":2,"time":"2025-01-28T01:15:41+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): login filter does not contain %uid place holder.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"nihLPFnJk0U1oUiuUF42","level":2,"time":"2025-01-28T01:22:03+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): No LDAP Login Filter given!","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"nihLPFnJk0U1oUiuUF42","level":2,"time":"2025-01-28T01:22:03+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): Not a single Base DN given.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"nihLPFnJk0U1oUiuUF42","level":2,"time":"2025-01-28T01:22:03+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/getConfiguration.php","message":"Configuration Error (prefix s01): login filter does not contain %uid place holder.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): No LDAP Login Filter given!","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): Not a single Base DN given.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): login filter does not contain %uid place holder.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): No LDAP Login Filter given!","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): Not a single Base DN given.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}
{"reqId":"tUSgvqp59SdHYdGCZ2gS","level":2,"time":"2025-01-28T01:22:09+00:00","remoteAddr":"192.168.10.10","user":"admin","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Configuration Error (prefix s01): login filter does not contain %uid place holder.","userAgent":"Mozilla/5.0 (Windows NT 10.0; rv:128.0) Gecko/20100101 Firefox/128.0","version":"29.0.11.1","data":{"app":"user_ldap"}}

Additional info

No response