[NC 22.2.3] Deprecated event type for OCP\IPreview:PreviewRequested

[GAS85]

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Steps to reproduce

1. Open any UI Page with Pictures
2. See Logs flood with
   

{"reqId":"tJI9rQ4bC5JlMobuiATV","level":1,"time":"2022-01-13T09:29:28+00:00","remoteAddr":"256.256.256","user":"USER","app":"no app in context","method":"GET","url":"/index.php/core/preview?fileId=3559166&c=66307dcfa2f549c84826b1eea5bf1423&x=250&y=250&forceIcon=0&a=0","message":"Deprecated event type for OCP\\IPreview:PreviewRequested: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0","version":"22.2.3.0","id":"61dff21de59ee"}

3. Find an old ticket [18.0.0 Beta1] Deprecated event type for OCP\IPreview:PreviewRequested #18331
4. Be sad

Expected behaviour

No Deprecated events being used in UI

Actual behaviour

Logs flood with same event

Server configuration detail

Operating system: Linux 5.4.0-94-generic #106-Ubuntu SMP Thu Jan 6 23:58:14 UTC 2022 x86_64

Webserver: Apache (fpm-fcgi)

Database: mysql 10.3.32

PHP version: 7.4.27

Modules loaded: Core, date, libxml, openssl, pcre, zlib, filter, hash, Reflection, SPL, session, standard, sodium, cgi-fcgi, mysqlnd, PDO, xml, apcu, bcmath, bz2, calendar, ctype, curl, dom, mbstring, FFI, fileinfo, ftp, gd, gettext, gmp, iconv, igbinary, imagick, intl, json, ldap, exif, mysqli, pdlib, pdo_mysql, pdo_sqlite, apc, posix, readline, redis, shmop, SimpleXML, snmp, sockets, sqlite3, sysvmsg, sysvsem, sysvshm, tokenizer, xmlreader, xmlwriter, xsl, zip, Phar, Zend OPcache

Nextcloud version: 22.2.3 - 22.2.3.0

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

Where did you install Nextcloud from: Official

Signing status

Array
(
)

List of activated apps

Enabled:
 - accessibility: 1.8.0
 - activity: 2.15.0
 - admin_audit: 1.12.0
 - audioplayer: 3.2.4
 - bookmarks: 10.0.3
 - bruteforcesettings: 2.3.0
 - calendar: 3.0.4
 - camerarawpreviews: 0.7.15
 - checksum: 1.1.3
 - cloud_federation_api: 1.5.0
 - comments: 1.12.0
 - contacts: 4.0.7
 - contactsinteraction: 1.3.0
 - cospend: 1.4.3
 - dashboard: 7.2.0
 - data_request: 1.9.0
 - dav: 1.19.0
 - deck: 1.5.5
 - drawio: 1.0.2
 - external: 3.9.0
 - extract: 1.3.3
 - facerecognition: 0.9.1
 - federatedfilesharing: 1.12.0
 - files: 1.17.0
 - files_automatedtagging: 1.12.0
 - files_downloadactivity: 1.12.0
 - files_external: 1.13.0
 - files_mindmap: 0.0.25
 - files_pdfviewer: 2.3.1
 - files_retention: 1.11.1
 - 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
 - forms: 2.4.0
 - gpxedit: 0.0.14
 - gpxpod: 4.3.0
 - impersonate: 1.9.0
 - integration_discourse: 1.0.2
 - integration_github: 1.0.2
 - integration_gitlab: 1.0.3
 - keeweb: 0.6.8
 - logreader: 2.7.0
 - lookup_server_connector: 1.10.0
 - mail: 1.11.5
 - maps: 0.1.10
 - news: 17.0.1
 - nextcloud_announcements: 1.11.0
 - notes: 4.2.0
 - notifications: 2.10.1
 - oauth2: 1.10.0
 - ocdownloader: 1.8.0
 - password_policy: 1.12.0
 - phonetrack: 0.6.9
 - photos: 1.4.0
 - polls: 3.4.2
 - previewgenerator: 3.4.1
 - privacy: 1.6.0
 - provisioning_api: 1.12.0
 - recognize: 1.8.0
 - recommendations: 1.1.0
 - serverinfo: 1.12.0
 - settings: 1.4.0
 - sharebymail: 1.12.0
 - side_menu: 2.1.0
 - spreed: 12.2.2
 - support: 1.5.0
 - survey_client: 1.10.0
 - systemtags: 1.12.0
 - text: 3.3.0
 - theming: 1.13.0
 - transmission: 0.7.2
 - twofactor_backupcodes: 1.11.0
 - twofactor_totp: 6.2.0
 - unsplash: 1.2.4
 - updatenotification: 1.12.0
 - user_status: 1.2.0
 - video_converter: 1.0.4
 - viewer: 1.6.0
 - weather_status: 1.2.0
 - workflowengine: 2.4.0
Disabled:
 - circles
 - encryption
 - federation
 - files_accesscontrol
 - flowupload
 - gpxmotion
 - integration_jira
 - radio
 - user_ldap
 - weather

Configuration (config/config.php)

{
    "instanceid": "***REMOVED SENSITIVE VALUE***",
    "passwordsalt": "***REMOVED SENSITIVE VALUE***",
    "secret": "***REMOVED SENSITIVE VALUE***",
    "trusted_domains": [
        "***REMOVED SENSITIVE VALUE***",
        "***REMOVED SENSITIVE VALUE***",
        "***REMOVED SENSITIVE VALUE***"
    ],
    "datadirectory": "***REMOVED SENSITIVE VALUE***",
    "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
    "dbtype": "mysql",
    "version": "22.2.3.0",
    "dbname": "***REMOVED SENSITIVE VALUE***",
    "dbhost": "***REMOVED SENSITIVE VALUE***",
    "dbport": "",
    "dbtableprefix": "oc_",
    "mysql.utf8mb4": true,
    "dbuser": "***REMOVED SENSITIVE VALUE***",
    "dbpassword": "***REMOVED SENSITIVE VALUE***",
    "installed": true,
    "filesystem_check_changes": 0,
    "filelocking.enabled": true,
    "memcache.local": "\\OC\\Memcache\\APCu",
    "memcache.locking": "\\OC\\Memcache\\Redis",
    "memcache.distributed": "\\OC\\Memcache\\Redis",
    "redis": {
        "host": "***REMOVED SENSITIVE VALUE***",
        "port": 0,
        "timeout": 1.5
    },
    "default_phone_region": "DE",
    "mail_smtpmode": "smtp",
    "mail_smtpauthtype": "LOGIN",
    "mail_from_address": "***REMOVED SENSITIVE VALUE***",
    "mail_domain": "***REMOVED SENSITIVE VALUE***",
    "maintenance": false,
    "theme": "",
    "logfile": "\/var\/nextcloud\/data\/nextcloud.log",
    "loglevel": 1,
    "trashbin_retention_obligation": "14, auto",
    "versions_retention_obligation": "14, auto",
    "data-fingerprint": "7be51475e95ea13b254cd880319d98ec",
    "enable_previews": true,
    "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"
    ],
    "preview_max_x": 1920,
    "preview_max_y": 1080,
    "jpeg_quality": 90,
    "auth.bruteforce.protection.enabled": true,
    "simpleSignUpLink.shown": false,
    "mail_sendmailmode": "smtp",
    "mail_smtpsecure": "tls",
    "mail_smtpauth": 1,
    "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
    "mail_smtpport": "587",
    "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
    "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
    "twofactor_enforced": true,
    "twofactor_enforced_groups": [
        "admin"
    ],
    "twofactor_enforced_excluded_groups": [],
    "has_rebuilt_cache": true,
    "updater.release.channel": "stable",
    "app_install_overwrite": [
        "transmission"
    ]
}

External storages: Local, Webdav

Encryption: no

User-backends:

• OC\User\Database

Talk configuration:

STUN servers

• stun.nextcloud.com:443

TURN servers

• no custom server configured

Signaling servers (mode: internal):

• no custom server configured

Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0

[szaimen]

Does this still happen if you set the loglevel to 2 as it is recommended in the admin docs?

[GAS85]

For sure not, but this will simply suppress messages below WARN. My expectation that UI not using any deprecated endpoints / methods.

INFO is also important for me, because it is providing such kind of information as:

Activity such as user logins and file activities,

[szaimen]

Activity such as user logins and file activities,

You should use the admin_audit app for such things

You should use the admin_audit app for such things

@szaimen
Just a dumm question: I don't seem to find that app in the app_store. 🤔 Under which Name is it released there?

[szaimen]

Just a dumm question: I don't seem to find that app in the app_store. 🤔 Under which Name is it released there?

It is integrated into the server: https://github.com/nextcloud/server/tree/master/apps/admin_audit

See https://docs.nextcloud.com/server/stable/admin_manual/configuration_server/logging_configuration.html?highlight=admin_audit#admin-audit-log for how to configure it

Everything will then be logged to this file.

Also, see this PR: nextcloud/logreader#476

It is integrated into the server: https://github.com/nextcloud/server/tree/master/apps/admin_audit

See https://docs.nextcloud.com/server/stable/admin_manual/configuration_server/logging_configuration.html?highlight=admin_audit#admin-audit-log for how to configure it

Everything will then be logged to this file.

Also, see this PR: nextcloud/logreader#476

@szaimen Thank you very much. 👋 I must confess, I didn't read the manual for this specific case. 🙈 I only have been using the logging untill now with Level 3.

[GAS85]

You should use the admin_audit app for such things

😄 Thanks, I use it too, but INFO Level is not limited to the list above, so more relevant information is flying there that been used for monitoring.

[GAS85]

This is a good comment from other issue: #24380 (comment)

[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+

[GAS85]

Nextcloud 24.0.9 still presented:

{"reqId":"X9Ez064xV7jPfC5H9xPT","level":1,"time":"2023-01-30T15:18:24+00:00","remoteAddr":"255.255.255.255","user":"USER","app":"no app in context","method":"GET","url":"/index.php/core/preview?fileId=4638250&c=e56af70963f1e875f00ea57d18634fb2&x=250&y=250&forceIcon=0&a=0","message":"Deprecated event type for OCP\\IPreview:PreviewRequested: Symfony\\Component\\EventDispatcher\\GenericEvent is used","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Firefox/107.0","version":"24.0.9.2","data":[],"id":"63d7dfc05d75f"}