Wonderfall Image - Talk Admin Panel Fails to Load

[benyanke]

Steps to reproduce

1. Open ${yourNextcloudInstall}/settings/admin/talk
2. White page is returned with no content, errors logged in log file:

{"reqId":"[redacted]","level":3,"time":"2023-01-03 01:58:33","remoteAddr":"[redacted]","user":"[me]","app":"PHP","method":"GET","url":"/settings/admin/talk","message":"[snuffleupagus][0.0.0.0][disabled_function][drop] Aborted execution on call of the function 'function_exists', because its argument '$function' content (exec) matched a rule at /nextcloud/apps2/spreed/lib/Settings/Admin/AdminSettings.php#506","userAgent":"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:108.0) Gecko/20100101 Firefox/108.0","version":"25.0.2.3","data":{"app":"PHP"}}

Talk app version: 15.0.2

Nextcloud Version: 25.0.2

container: ghcr.io/wonderfall/nextcloud:25

nextcloud/spreed#8516

See report here for further details.

[Wonderfall]

This is indeed not an upstream issue. A quick fix would be to disable the Snuffleupagus PHP module this image uses. You can do that by setting the PHP_HARDENING environment variable to false. Then recreate the container.

A long-term fix would be to whitelist the function that is causing issues in that configuration file.

[benyanke]

Thanks @Wonderfall - I've put a PR (#112) for further discussion.