[OCP\Files\StorageNotAvailableException] with encryption:scan:legacy-format or encryption:decrypt-all

[micah]

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Steps to reproduce

1. Ran occ encryption:scan:legacy-format

Expected behaviour

I'm not exactly sure what this is supposed to do, the documentation does not tell me.

Actual behaviour

It scanned files, and then ended with:

In DAV.php line 867:
                                                                                      
  Sabre\HTTP\ClientException: Failed to connect to cloud.someplace.org port 443: No   
  route to host                                                                       
                                                                                      
encryption:scan:legacy-format

It showed a file without a proper header, so I removed it, and scanned again, this time it found no files with improper headers, and instead said this at the end:

In Availability.php line 94:
                                                
  [OCP\Files\StorageNotAvailableException (1)]  
                                                

encryption:scan:legacy-format

Server configuration

Operating system:
Debian Buster

Web server:
nginx

Database:
mysql

PHP version:
7.3

Nextcloud version: (see Nextcloud admin page)
20.0.4

Updated from an older Nextcloud/ownCloud or fresh install:
Updated

Where did you install Nextcloud from:
nextcloud download

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:
  - accessibility: 1.6.0
  - activity: 2.13.4
  - admin_audit: 1.10.0
  - bruteforcesettings: 2.0.1
  - calendar: 2.1.3
  - cloud_federation_api: 1.3.0
  - comments: 1.10.0
  - contacts: 3.4.3
  - contactsinteraction: 1.1.0
  - dashboard: 7.0.0
  - dav: 1.16.2
  - encryption: 2.8.1
  - federatedfilesharing: 1.10.2
  - federation: 1.10.1
  - files: 1.15.0
  - files_pdfviewer: 2.0.1
  - files_rightclick: 0.17.0
  - files_sharing: 1.12.1
  - files_trashbin: 1.10.1
  - files_versions: 1.13.0
  - files_videoplayer: 1.9.0
  - firstrunwizard: 2.9.0
  - impersonate: 1.7.0
  - logreader: 2.5.0
  - lookup_server_connector: 1.8.0
  - news: 15.1.1
  - nextcloud_announcements: 1.9.0
  - notifications: 2.8.0
  - oauth2: 1.8.0
  - onlyoffice: 6.2.0
  - password_policy: 1.10.1
  - photos: 1.2.1
  - previewgenerator: 3.1.0
  - privacy: 1.4.0
  - provisioning_api: 1.10.0
  - recommendations: 0.8.0
  - serverinfo: 1.10.0
  - settings: 1.2.0
  - sharebymail: 1.10.0
  - support: 1.3.0
  - survey_client: 1.8.0
  - systemtags: 1.10.0
  - tasks: 0.13.6
  - text: 3.1.0
  - theming: 1.11.0
  - twofactor_backupcodes: 1.9.0
  - twofactor_totp: 5.0.0
  - twofactor_u2f: 6.0.0
  - updatenotification: 1.10.0
  - user_status: 1.0.1
  - viewer: 1.4.0
  - weather_status: 1.0.0
  - workflowengine: 2.2.0
Disabled:
  - announcementcenter
  - bookmarks
  - circles
  - deck
  - files_external
  - files_markdown
  - ownpad
  - spreed
  - twofactor_yubikey
  - user_ldap

Nextcloud configuration:

Config report

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
           '***REMOVED SENSITIVE VALUE***'
        ],
        "enable_previews": true,
        "preview_max_x": 1024,
        "preview_max_y": 768,
        "preview_max_scale_factor": 1,
        "enabledPreviewProviders": [
            "OC\\Preview\\PNG",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\GIF",
            "OC\\Preview\\BMP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\Movie",
            "OC\\Preview\\PDF",
            "OC\\Preview\\MP3",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MarkDown"
        ],
        "filesystem_check_changes": 0,
        "activity_expire_days": 14,
        "knowledgebaseenabled": false,
        "auth.bruteforce.protection.enabled": true,
        "blacklisted_files": [
            ".htaccess",
            "Thumbs.db",
            "thumbs.db"
        ],
        "cron_log": true,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "overwrite.cli.url": "http:\/\/***REMOVED SENSITIVE VALUE***\/nextcloud",
        "htaccess.RewriteBase": "\/nextcloud",
        "dbtype": "mysql",
        "maintenance": false,
        "mail_smtpdebug": true,
        "version": "20.0.4.0",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "filelocking.enabled": "true",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "timeout": 0
        },
        "logfile": "\/var\/log\/nextcloud\/nextcloud.log",
        "loglevel": 2,
        "mail_smtpmode": "smtp",
        "mail_smtpauthtype": "PLAIN",
        "mail_smtpsecure": "ssl",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "465",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "mysql.utf8mb4": true,
        "theme": "",
        "trashbin_retention_obligation": "auto, 7",
        "updater.release.channel": "stable",
        "twofactor_enforced": "false",
        "twofactor_enforced_groups": [
            "test2fa",
            "admin"
        ],
        "twofactor_enforced_excluded_groups": [],
        "config_is_read_only": "True",
        "encryption.legacy_format_support": true,
        "encryption.key_storage_migrated": false
    }
}

Are you using external storage, if yes which one: local/smb/sftp/...
no

Are you using encryption: yes/no
yes

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

Nextcloud log (data/nextcloud.log)

Nextcloud log

empty

[szaimen]

Duplicate of #24240 (comment)

[solracsf]

@szaimen this does not work for me; after run occ files:scan --all, problem remains.

[FelixOliverLange]

I've encountered the issue as well.
System: Nextcloud 22.2.3 running on PHP 8 with a MySQL 8 DB backend.
The encryption:scan:legacy-format quits with the same exception, though for me a different line is affected:

In Availability.php line 93:
  [OCP\Files\StorageNotAvailableException (1)]

I ran occ files:scan --all and retriggered encryption:scan:legacy-format, with no change to before, though the execution is faster.

I checked for Encryption-related errors that are mentioned in #24240 (comment)
I found multiple incidents of such errors, but they were already existent on NextCloud 20 and did not occur on versions 21 and 22. However, I also updated only today, so that may very well change. The files affected are also still readable in the web UI, so no data loss yet as it seems.

[szaimen]

Hi, please update to 24.0.9 or better 25.0.3 and report back if it fixes the issue. Thank you!

My goal is to add a label like e.g. 25-feedback to this ticket of an up-to-date major Nextcloud version where the bug could be reproduced. However this is not going to work without your help. So thanks for all your effort!

If you don't manage to reproduce the issue in time and the issue gets closed but you can reproduce the issue afterwards, feel free to create a new bug report with up-to-date information by following this link: https://github.com/nextcloud/server/issues/new?assignees=&labels=bug%2C0.+Needs+triage&template=BUG_REPORT.yml&title=%5BBug%5D%3A+

[Id2ndR]

I still encounter the issue when running occ encryption:scan:legacy-format with Nextcloud 25.0.8.2

In Availability.php line 93:
                                                
  [OCP\Files\StorageNotAvailableException (1)]  
                                                

The verbose mode does not help to understand which file was read.

[Shieldowskyy]

I have encountered the same error so I can't disable encryption on my instance as it is impossible to fully decrypt the files. Is there any workaround?