### ⚠️ This issue respects the following points: ⚠️
- [X] This is a **bug**, no…t a question or a configuration/webserver/proxy issue.
- [X] This issue is **not** already reported on [Github](https://github.com/nextcloud/server/issues?q=is%3Aopen+is%3Aissue+label%3Abug) OR [Nextcloud Community Forum](https://help.nextcloud.com/) _(I've searched it)_.
- [X] Nextcloud Server **is** up to date. See [Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) for supported versions.
- [X] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).
### Bug description
Hi everyone,
We have a whole group of LDAP users who connect to the Nextcloud with external storage (SMB/CIFS) that maps automatically as soon as the user logs on.
Since upgrading to 28.0.1, some users are accessing network folders but nothing is visible (No files) and I'm getting generation errors at the same time :
```
{"reqId":"M3EwBxeysCLR3Dnko63W","level":3,"time":"2024-01-09T15:33:50+00:00","remoteAddr":"x.x.x.x","user":"74C480CF-3D78-496B-AA68-A3E7A3C2ACE3","app":"webdav","method":"PROPFIND","url":"/remote.php/dav/files/74C480CF-3D78-496B-AA68-A3E7A3C2ACE3/DONNEES/","message":"Exception thrown: OCP\\Files\\GenericFileException","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0","version":"28.0.1.1","exception":{"Exception":"OCP\\Files\\GenericFileException","Message":"","Code":0,"Trace":[{"file":"/srv/nextcloud/www/apps/text/lib/DAV/WorkspacePlugin.php","line":119,"function":"getContent","class":"OC\\Files\\Node\\File","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/PropFind.php","line":95,"function":"OCA\\Text\\DAV\\{closure}","class":"OCA\\Text\\DAV\\WorkspacePlugin","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/nextcloud/www/apps/text/lib/DAV/WorkspacePlugin.php","line":117,"function":"handle","class":"Sabre\\DAV\\PropFind","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"propFind","class":"OCA\\Text\\DAV\\WorkspacePlugin","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1052,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":984,"function":"getPropertiesByNode","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1662,"function":"getPropertiesIteratorForPath","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1647,"function":"writeMultiStatus","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":346,"function":"generateMultiStatus","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPropFind","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/remote.php","line":172,"args":["/srv/nextcloud/www/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/nextcloud/www/lib/private/Files/Node/File.php","Line":56,"message":"","exception":{},"CustomMessage":"Exception thrown: OCP\\Files\\GenericFileException"}}
```
So the network folder is accessible, but when it is accessed, everything remains empty and an error is generated.
I can't reproduce the problem for everyone, only for certain users. For example, user `A` will have access while user `B` won't (even though on the Active Directory and Nextcloud sides they have exactly the same rights and permissions, they're practically identical profiles).
I came across an issue that seems similar, as we also use Collabora :
https://help.nextcloud.com/t/ocp-files-genericfileexception-in-file-php-nach-occ-app-update-all/175085/2
Despite deactivating the richdocuments and richdocumentscode plugins, nothing to do still the same. I've also disabled preview and ACL checking in the external storage settings, but the problem persists. I also have the same problem if I create a share manually from the user account, in addition to the share done automatically at login.
I also tried to delete the LDAP user from Nextcloud but it was impossible ((Is it possible to force the deletion and then reconnect as if from scratch? That would be a good idea) :
```
sudo -u nextcloud php /srv/nextcloud/www/occ user:delete <UUID>
The specified user could not be deleted. Please check the logs.
```
I also deleted his Nextcloud user profile folder, then reconnected, but that didn't work.
The size of the folder is displayed, and you can access it (a sign that the link is working), but as soon as you access it, everything is empty.
### Steps to reproduce
- Set up LDAP authentication
- Set up automatic network mounting on user login (SMB)
- On access, folder mounts, can be accessed but Nextcloud displays it as empty
### Expected behavior
The contents of the folder are displayed.
### Installation method
None
### Nextcloud Server version
28
### Operating system
Debian/Ubuntu
### PHP engine version
PHP 8.2
### Web server
Nginx
### Database engine version
MySQL
### Is this bug present after an update or on a fresh install?
Upgraded to a MAJOR version (ex. 22 to 23)
### Are you using the Nextcloud Server Encryption module?
None
### What user-backends are you using?
- [X] Default user-backend _(database)_
- [X] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other
### Configuration report
```shell
{
"system": {
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"xxx.myclient.com"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "28.0.1.1",
"overwrite.cli.url": "http:\/\/localhost",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"memcache.local": "\\OC\\Memcache\\APCu",
"default_phone_region": "FR_fr",
"trashbin_retention_obligation": "auto",
"skeletondirectory": "",
"force_language": "fr",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"dbindex": 0,
"password": "***REMOVED SENSITIVE VALUE***",
"timeout": 1.5
},
"log_type": "file",
"logfile": "\/srv\/nextcloud\/www\/data\/nextcloud.log",
"loglevel": 2,
"theme": "",
"maintenance": false,
"versions_retention_obligation": "auto, 3",
"ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory"
}
}
```
### List of activated Apps
```shell
Enabled:
- activity: 2.20.0
- auto_groups: 1.5.2
- cloud_federation_api: 1.11.0
- comments: 1.18.0
- dav: 1.29.1
- federatedfilesharing: 1.18.0
- files: 2.0.0
- files_external: 1.20.0
- files_lock: 28.0.1
- files_pdfviewer: 2.9.0
- files_reminders: 1.1.0
- files_sharing: 1.20.0
- files_trashbin: 1.18.0
- files_versions: 1.21.0
- logreader: 2.13.0
- lookup_server_connector: 1.16.0
- notifications: 2.16.0
- oauth2: 1.16.3
- password_policy: 1.18.0
- photos: 2.4.0
- privacy: 1.12.0
- provisioning_api: 1.18.0
- related_resources: 1.3.0
- settings: 1.10.1
- smb_test: 0.3.8
- text: 3.9.1
- theming: 2.3.0
- twofactor_backupcodes: 1.17.0
- twofactor_totp: 10.0.0-beta.2
- user_ldap: 1.19.0
- viewer: 2.2.0
- workflowengine: 2.10.0
```
### Nextcloud Signing status
```shell
No errors have been found.
```
### Nextcloud Logs
```shell
{"reqId":"M3EwBxeysCLR3Dnko63W","level":3,"time":"2024-01-09T15:33:50+00:00","remoteAddr":"x.x.x.x","user":"74C480CF-3D78-496B-AA68-A3E7A3C2ACE3","app":"webdav","method":"PROPFIND","url":"/remote.php/dav/files/74C480CF-3D78-496B-AA68-A3E7A3C2ACE3/DONNEES/","message":"Exception thrown: OCP\\Files\\GenericFileException","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0","version":"28.0.1.1","exception":{"Exception":"OCP\\Files\\GenericFileException","Message":"","Code":0,"Trace":[{"file":"/srv/nextcloud/www/apps/text/lib/DAV/WorkspacePlugin.php","line":119,"function":"getContent","class":"OC\\Files\\Node\\File","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/PropFind.php","line":95,"function":"OCA\\Text\\DAV\\{closure}","class":"OCA\\Text\\DAV\\WorkspacePlugin","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/nextcloud/www/apps/text/lib/DAV/WorkspacePlugin.php","line":117,"function":"handle","class":"Sabre\\DAV\\PropFind","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"propFind","class":"OCA\\Text\\DAV\\WorkspacePlugin","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1052,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":984,"function":"getPropertiesByNode","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1662,"function":"getPropertiesIteratorForPath","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":1647,"function":"writeMultiStatus","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":346,"function":"generateMultiStatus","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpPropFind","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/nextcloud/www/remote.php","line":172,"args":["/srv/nextcloud/www/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/nextcloud/www/lib/private/Files/Node/File.php","Line":56,"message":"","exception":{},"CustomMessage":"Exception thrown: OCP\\Files\\GenericFileException"}}
```
### Additional info
_No response_