cc @nextcloud/server-triage is this feasible?

This issue has been automatically marked as stale because it has not had recent activity and seems to be missing some essential information. It will be closed if no further activity occurs. Thank you for your contributions.

Change of plan, I'll swing back and submit a POC that can be reviewed/merged. Less effort given everything else going on.

Follow progress here: https://github.com/cwilby/server

I added a FileExtension check to apps/workflowengine/lib/Check/FileExtension.php and registered it in the OCA\WorkflowEngine\Manager class.

cwilby@2b4660e

Need to do some testing next, then will decide whether to submit a PR.

Issue: The pathinfo($x, PATHINFO_EXTENSION) method used will return gz for stuff.tar.gz.
Solution:

$fileName = $this->path === null ? '' : basename($this->path);

$fileNamePieces = explode('.', $fileName);

array_shift($fileNamePieces);

return implode('.', $fileNamePieces);