PHP 7.4: LazyFolder - Trying to access array offset on value of type int at lib/private/Files/Node/Node.php#327

[robertoschwald]

Steps to reproduce

1. Enable Group Folders and define group folders
   2.Sync the group folders using the NextCloud client (macOS in my case)
2. Error log occurs

Expected behaviour

No errors are logged

Actual behaviour

Error log:

","message":"Trying to access array offset on value of type int at xxx/lib/private/Files/Node/Node.php#327",,"version":"18.0.5.1","id":"..."}

Server configuration

Operating system:
CentOS8, 8.1.1911

Web server:
Apache HTTPD 2.4.37 (centos)

Database:
MariaDB 10.3.17

PHP version:
PHP 7.4.6 (cli) (built: May 12 2020 08:09:15) ( NTS )

Nextcloud version: (see Nextcloud admin page)
18.0.5.1

Updated from an older Nextcloud/ownCloud or fresh install:
Upgraded from former minor release.

Where did you install Nextcloud from:
Official

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:
  - accessibility: 1.4.0
  - activity: 2.11.0
  - admin_audit: 1.8.0
  - announcementcenter: 3.7.0
  - browser_warning: 0.2.0
  - bruteforcesettings: 1.6.0
  - calendar: 2.0.3
  - cloud_federation_api: 1.1.0
  - comments: 1.8.0
  - contacts: 3.3.0
  - dav: 1.14.0
  - deck: 1.0.2
  - encryption: 2.6.0
  - external: 3.5.0
  - federatedfilesharing: 1.8.0
  - federation: 1.8.0
  - files: 1.13.1
  - files_accesscontrol: 1.8.1
  - files_antivirus: 2.4.1
  - files_pdfviewer: 1.7.0
  - files_rightclick: 0.15.2
  - files_sharing: 1.10.1
  - files_trashbin: 1.8.0
  - files_versions: 1.11.0
  - files_videoplayer: 1.7.0
  - firstrunwizard: 2.7.0
  - groupfolders: 6.0.6
  - logreader: 2.3.0
  - lookup_server_connector: 1.6.0
  - mail: 1.3.5
  - nextcloud_announcements: 1.7.0
  - notifications: 2.6.0
  - oauth2: 1.6.0
  - password_policy: 1.8.0
  - photos: 1.0.0
  - privacy: 1.2.0
  - provisioning_api: 1.8.0
  - quota_warning: 1.7.0
  - recommendations: 0.6.0
  - serverinfo: 1.8.0
  - settings: 1.0.0
  - sharebymail: 1.8.0
  - support: 1.1.1
  - survey_client: 1.6.0
  - systemtags: 1.8.0
  - tasks: 0.13.1
  - text: 2.0.0
  - theming: 1.9.0
  - twofactor_backupcodes: 1.7.0
  - twofactor_totp: 4.1.3
  - updatenotification: 1.8.0
  - viewer: 1.2.0
  - workflowengine: 2.0.0
Disabled:
  - files_external
  - onlyoffice
  - spreed
  - user_ldap

Nextcloud configuration:

Config report

All sensitive data was removed.
{
    "system": {
        "dbtype": "mysql",
        "version": "18.0.5.1",
        "mysql.utf8mb4": true,
        "installed": true,
       
		"filelocking.enabled": true,
        "memcache.local": "\\OC\\Memcache\\Redis",
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "...",
            "port": 6379
        },
		
        "blacklisted_files": [],
		
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [
            ....
        ],
        "twofactor_enforced_excluded_groups": [],
		
        "maintenance": false,
        "theme": "",
        "loglevel": 2,
    }
}

Are you using encryption: yes/no
no

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
no

Client configuration

Browser:
NC client app (MacOS)

Operating system:
macOS 10.15.5

Logs

Nextcloud log (data/nextcloud.log)

Nextcloud log

Original error log see above.
Here is the one with enhanced logging from #19010

LogicException: $path is a integer: 5
/var/www/html/lib/private/Files/Node/Folder.php - line 59:
OC\Files\Node\Node->isValidPath()
/var/www/html/lib/private/Files/Node/Folder.php - line 137:
OC\Files\Node\Folder->getFullPath()
<<closure>>
OC\Files\Node\Folder->get()
/var/www/html/apps/groupfolders/lib/Helper/LazyFolder.php - line 72:
call_user_func_array()
/var/www/html/apps/groupfolders/lib/Helper/LazyFolder.php - line 144:
OCA\GroupFolders\Helper\LazyFolder->__call()
/var/www/html/apps/groupfolders/lib/Mount/MountProvider.php - line 184:
OCA\GroupFolders\Helper\LazyFolder->get()
/var/www/html/apps/groupfolders/lib/Mount/MountProvider.php - line 124:
OCA\GroupFolders\Mount\MountProvider->getFolder()
/var/www/html/apps/groupfolders/lib/Versions/VersionsBackend.php - line 160:
OCA\GroupFolders\Mount\MountProvider->getMount()
/var/www/html/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php - line 62:
OCA\GroupFolders\Versions\VersionsBackend->getAllVersionedFiles()
/var/www/html/apps/groupfolders/lib/Versions/GroupVersionsExpireManager.php - line 57:
OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireFolder()
/var/www/html/apps/groupfolders/lib/BackgroundJob/ExpireGroupVersions.php - line 40:
OCA\GroupFolders\Versions\GroupVersionsExpireManager->expireAll()
/var/www/html/lib/private/BackgroundJob/Job.php - line 61:
OCA\GroupFolders\BackgroundJob\ExpireGroupVersions->run()
/var/www/html/lib/private/BackgroundJob/TimedJob.php - line 55:
OC\BackgroundJob\Job->execute()
/var/www/html/cron.php - line 125:
OC\BackgroundJob\TimedJob->execute()

[kesselb]

Closing as duplicate of nextcloud/groupfolders#907

[robertoschwald]

@kesselb Thanks. Didn't know that there exists a separate repo for it.