[Bug]: \OC\Files\View::hash(): Return value must be of type string|bool, null returned

[solracsf]

⚠️ 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

Log is spammed with hundreds of these errors. I don't really know how to reproduce them, or any side effects.

Steps to reproduce

No idea.

Expected behavior

No errors.

Installation method

Community Web installer on a VPS or web space

Nextcloud Server version

27

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.2

Web server

Apache (supported)

Database engine version

MariaDB

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?

Encryption is Disabled

What user-backends are you using?

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

Configuration report

# occ config:list system
{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_smtpsecure": "tls",
        "mail_smtpauthtype": "LOGIN",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0
        },
        "memcache.local": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "tempdirectory": "\/tmp",
        "appstoreenabled": true,
        "activity_expire_days": 14,
        "auth.bruteforce.protection.enabled": true,
        "htaccess.RewriteBase": "\/",
        "knowledgebaseenabled": false,
        "logtimezone": "Europe\/Paris",
        "updatechecker": false,
        "upgrade.disable-web": true,
        "overwriteprotocol": "https",
        "quota_include_external_storage": false,
        "trashbin_retention_obligation": "auto, 7",
        "versions_retention_obligation": "auto, 30",
        "updater.release.channel": "stable",
        "default_language": "fr",
        "default_locale": "fr_FR",
        "skeletondirectory": "",
        "default_phone_region": "fr",
        "enabledPreviewProviders": [
            "OC\\Preview\\Imaginary",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\TXT"
        ],
        "preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***"
        ],
        "version": "27.1.7.2",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "overwritehost": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "maintenance": false,
        "preview_max_memory": 256,
        "preview_max_x": 1024,
        "preview_max_y": 1024,
        "preview_max_scale_factor": 1,
        "allow_local_remote_servers": false,
        "simpleSignUpLink.shown": false,
        "filelocking.enabled": true,
        "updatedirectory": "\/tmp",
        "loglevel": 3,
        "preview_concurrency_new": 4,
        "maintenance_window_start": 1,
        "bulkupload.enabled": false,
        "has_valid_subscription": true,
        "preview_concurrency_all": 8,
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "profile.enabled": false,
        "session_relaxed_expiry": true,
        "filelocking.ttl": 600,
        "preview_format": "webp",
        "ldapProviderFactory": "OCA\\User_LDAP\\LDAPProviderFactory"
    }
}

List of activated Apps

# occ app:list
Enabled:
  - activity: 2.19.0
  - approval: 1.1.1
  - bruteforcesettings: 2.7.0
  - circles: 27.0.1
  - cloud_federation_api: 1.10.0
  - comments: 1.17.0
  - contacts: 5.5.2
  - contactsinteraction: 1.8.0
  - dashboard: 7.7.0
  - dav: 1.27.0
  - deck: 1.11.4
  - drawio: 2.1.4
  - external: 5.2.1
  - federatedfilesharing: 1.17.0
  - federation: 1.17.0
  - files: 1.22.0
  - files_mindmap: 0.0.30
  - files_pdfviewer: 2.8.0
  - files_reminders: 1.0.0
  - files_rightclick: 1.6.0
  - files_sharing: 1.19.0
  - files_trashbin: 1.17.0
  - files_versions: 1.20.0
  - groupfolders: 15.3.5
  - impersonate: 1.14.0
  - logreader: 2.12.0
  - lookup_server_connector: 1.15.0
  - notifications: 2.15.0
  - notify_push: 0.6.9
  - oauth2: 1.15.2
  - onlyoffice: 8.2.4
  - openotp_auth: 1.5.1
  - openotp_sign: 1.5.2
  - password_policy: 1.17.0
  - passwords: 2023.12.32
  - privacy: 1.11.0
  - provisioning_api: 1.17.0
  - related_resources: 1.2.0
  - settings: 1.9.0
  - sharebymail: 1.17.0
  - spreed: 17.1.6
  - systemtags: 1.17.0
  - theming: 2.2.0
  - twofactor_backupcodes: 1.16.0
  - user_ldap: 1.17.0
  - user_status: 1.7.0
  - viewer: 2.1.0
  - workflowengine: 2.9.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

{
  "reqId": "FfGPeqjikSxzJluVjDKd",
  "level": 3,
  "time": "2024-03-10T12:20:28+01:00",
  "user": "tvi",
  "app": "webdav",
  "method": "PATCH",
  "url": "/remote.php/dav/files/tvi/02%20-%20R%C3%A9f%C3%A9rentiel/00%20-%20Mod%C3%A8les%20et%20ent%C3%AAtes/01%20-%20Logo%20Le%20Pois/Logo-blanccote.png",
  "message": "OC\\Files\\View::hash(): Return value must be of type string|bool, null returned",
  "userAgent": "Mozilla/5.0 (Macintosh) mirall/3.12.1git (build 21208) (Nextcloud, osx-23.3.0 ClientArchitecture: arm64 OsArchitecture: arm64)",
  "version": "27.1.7.2",
  "exception": {
    "Exception": "TypeError",
    "Message": "OC\\Files\\View::hash(): Return value must be of type string|bool, null returned",
    "Code": 0,
    "Trace": [
      {
        "file": "/var/www/nextcloud/apps/dav/lib/Connector/Sabre/File.php",
        "line": 779,
        "function": "hash",
        "class": "OC\\Files\\View",
        "type": "->",
        "args": [
          "sha1",
          "/02 - Référentiel/00 - Modèles et entêtes/01 - Logo Le Pois/Logo-blanccote.png"
        ]
      },
      {
        "file": "/var/www/nextcloud/apps/dav/lib/Connector/Sabre/ChecksumUpdatePlugin.php",
        "line": 71,
        "function": "hash",
        "class": "OCA\\DAV\\Connector\\Sabre\\File",
        "type": "->",
        "args": [
          "sha1"
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php",
        "line": 89,
        "function": "httpPatch",
        "class": "OCA\\DAV\\Connector\\Sabre\\ChecksumUpdatePlugin",
        "type": "->",
        "args": [
          [
            "Sabre\\HTTP\\Request"
          ],
          [
            "Sabre\\HTTP\\Response"
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
        "line": 472,
        "function": "emit",
        "class": "Sabre\\DAV\\Server",
        "type": "->",
        "args": [
          "method:PATCH",
          [
            [
              "Sabre\\HTTP\\Request"
            ],
            [
              "Sabre\\HTTP\\Response"
            ]
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
        "line": 253,
        "function": "invokeMethod",
        "class": "Sabre\\DAV\\Server",
        "type": "->",
        "args": [
          [
            "Sabre\\HTTP\\Request"
          ],
          [
            "Sabre\\HTTP\\Response"
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php",
        "line": 321,
        "function": "start",
        "class": "Sabre\\DAV\\Server",
        "type": "->",
        "args": []
      },
      {
        "file": "/var/www/nextcloud/apps/dav/lib/Server.php",
        "line": 368,
        "function": "exec",
        "class": "Sabre\\DAV\\Server",
        "type": "->",
        "args": []
      },
      {
        "file": "/var/www/nextcloud/apps/dav/appinfo/v2/remote.php",
        "line": 35,
        "function": "exec",
        "class": "OCA\\DAV\\Server",
        "type": "->",
        "args": []
      },
      {
        "file": "/var/www/nextcloud/remote.php",
        "line": 172,
        "args": [
          "/var/www/nextcloud/apps/dav/appinfo/v2/remote.php"
        ],
        "function": "require_once"
      }
    ],
    "File": "/var/www/nextcloud/lib/private/Files/View.php",
    "Line": 1097,
    "message": "OC\\Files\\View::hash(): Return value must be of type string|bool, null returned",
    "exception": [],
    "CustomMessage": "OC\\Files\\View::hash(): Return value must be of type string|bool, null returned"
  },
  "id": "65edb13d061a6"
}

Additional info

No response

[keomabrun]

It might be just a coincidence but I started seeing those errors as well this morning, right after enabling memcache.distributed with Redis.

[keomabrun]

Hi 👋

I updated to v28.0.8 and I still have that error in the logs. Let me know if you need more info to debug/diag this issue 🙏

Thanks for the work !

[solracsf]

Feel free to try this PR: https://github.com/nextcloud/server/pull/46845/files