[Bug]: user_ldap Attempt for Paging? in Logging

⚠️ 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 (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

In the admin logging I get the Error "Attempt for Paging?" from the user_ldap app.

Not sure if related, but the LDAP/AD integration interface says Configuration incorrect and that The Base DN appears to be wrong but when checking on command line everything appears to be correct

root@machine01:/var/www/nextcloud# sudo -u www-data ./occ ldap:test-config s03
The configuration is valid and the connection could be established!

Using google I stumbled into this https://github.com/owncloud/user_ldap/issues/423 which seems related.

Steps to reproduce

1. Have a working LDAP config
2. (Maybe due to update)
3. Get error message in the Web interface

Expected behavior

• Command line tool and Web interface return the self results from the config check
• A more precise message why the base DN is wrong when everything appears to work fine

Installation method

Manual installation

Operating system

Debian/Ubuntu

PHP engine version

PHP 7.4

Web server

Nginx

Database engine version

MariaDB

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

Updated to a major version (ex. 22.2.3 to 23.0.1)

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

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "nc.top.secret.de",
            "nc.topp.secret.de"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "22.2.3.0",
        "overwrite.cli.url": "https:\/\/nc.top.secret.de",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "mysql.utf8mb4": true,
        "maintenance": false,
        "session_lifetime": 604800,
        "session_keepalive": true,
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "25",
        "default_language": "de_DE",
        "default_locale": "de",
        "default_phone_region": "DE",
        "skeletondirectory": "",
        "loglevel": 2,
        "updater.release.channel": "stable",
        "app_install_overwrite": [
            "drawio"
        ],
        "mail_smtpsecure": "tls",
        "ldapIgnoreNamingRules": false,
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "password": "***REMOVED SENSITIVE VALUE***"
        }
    }
}

List of activated Apps

Enabled:
  - accessibility: 1.8.0
  - activity: 2.15.0
  - admin_audit: 1.12.0
  - appointments: 1.11.12
  - bruteforcesettings: 2.3.0
  - calendar: 3.0.5
  - calendar_resource_management: 0.1.0
  - circles: 22.1.1
  - cloud_federation_api: 1.5.0
  - comments: 1.12.0
  - contacts: 4.0.7
  - dashboard: 7.2.0
  - dav: 1.19.0
  - deck: 1.5.5
  - drawio: 1.0.2
  - federatedfilesharing: 1.12.0
  - federation: 1.12.0
  - files: 1.17.0
  - files_external: 1.13.0
  - files_pdfviewer: 2.3.1
  - files_rightclick: 1.1.0
  - files_sharing: 1.14.0
  - files_trashbin: 1.12.0
  - files_versions: 1.15.0
  - files_videoplayer: 1.11.0
  - firstrunwizard: 2.11.0
  - groupfolders: 10.0.2
  - integration_gitlab: 1.0.3
  - integration_openproject: 1.0.6
  - logreader: 2.7.0
  - lookup_server_connector: 1.10.0
  - news: 17.0.1
  - nextcloud_announcements: 1.11.0
  - notifications: 2.10.1
  - oauth2: 1.10.0
  - password_policy: 1.12.0
  - photos: 1.4.0
  - polls: 3.4.2
  - privacy: 1.6.0
  - provisioning_api: 1.12.0
  - quota_warning: 1.13.0
  - recommendations: 1.1.0
  - serverinfo: 1.12.0
  - settings: 1.4.0
  - sharebymail: 1.12.0
  - smb_test: 0.3.3
  - support: 1.5.0
  - systemtags: 1.12.0
  - tasks: 0.14.2
  - text: 3.3.0
  - theming: 1.13.0
  - twofactor_backupcodes: 1.11.0
  - updatenotification: 1.12.0
  - user_ldap: 1.12.1
  - user_status: 1.2.0
  - viewer: 1.6.0
  - weather_status: 1.2.0
  - workflowengine: 2.4.0
Disabled:
  - contactsinteraction
  - encryption
  - mail
  - ransomware_protection
  - survey_client

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

{"reqId":"xM6hlC9vjtmWFGEx5Lpo","level":3,"time":"2022-02-14T16:18:33+00:00","remoteAddr":"123.456.789.123","user":"admin.sonn","app":"user_ldap","method":"POST","url":"/apps/user_ldap/ajax/wizard.php","message":"Attempt for Paging?  ","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:96.0) Gecko/20100101 Firefox/96.0","version":"22.2.3.0","id":"620a80d9cb9ae"}

Additional info

We are using Global Catalog (port 3269)

Start with the user_ldap AJAX endpoint /apps/user_ldap/ajax/wizard.php and compare its configuration check with occ ldap:test-config s03, using the reported Global Catalog setup on port 3269. Reproduce the Attempt for Paging? log entry and determine whether the web check can match the command-line result or provide a more precise Base DN error.