[Nextcloud] Workaround for hanging contacts app

[astehlik]

See https://github.com/nextcloud/server/issues/33048 for more background.

In a Nutshell:

• The contacts app makes many requests to load contact images like /remote.php/dav/addressbooks/users/<user>/<Addressbook>/<contact-uid>.vcf?photo=
• The ProxyErrorOverride config in Uberspace accounts hides the 404 error thrown by Nextcloud and opens the configured ErrorDocument from .htaccess
• The default error document redirects the user to the Nextcloud start page (Dashboard)
• This means a lot of requests are made at once to load the Nextcloud dashboard which can lead to a completely hung up Nextcloud instance until restarting the PHP service with uberspace tools restart php

[noave]

I really would have liked that this bug is handled in the NC repo, but I guess that could take some time. Because we already have this section of "troubleshooting" its ok to add this workaround here. But I would ask you to remove the automatic update part and just add a hint, that this might have to be checked again after updating

[entorb]

Thank you so much, that workaround fixed a headage of mine ;-)

[astehlik]

Thank you for your feedback, @noave

I now replaced this section:

---

You can add these lines to the ~/bin/nextcloud-update script to make sure the workaround stays active after automated updates:

 php ~/html/occ maintenance:update:htaccess
 
 # Override default ErrorDocument directives as a workaround for
 # https://github.com/nextcloud/server/issues/33048
 {
   echo ""
   echo 'ErrorDocument 403 "Forbidden"'
   echo 'ErrorDocument 404 "Not found"'
 } >> ~/html/.htaccess

---

with a hint. I hope this is OK. Please let me know if I should change anything else.

[user858753257]

Is this a general bug from Nextcloud which can be fixed in the next updates ?

[astehlik]

Is this a general bug from Nextcloud which can be fixed in the next updates ?

@F3000 The issue filed with Nextcloud is pending for quite some time now :disappointed:

See: https://github.com/nextcloud/server/issues/33048