Don't use temporary file to pipe data to "spreedbox-license-keys"

[fancycode]

Creating a temporary file to pass data to the spreedbox-license-keys tool is unnecessary, this can be done directly using proc_open.

See http://stackoverflow.com/questions/2390604/how-to-pass-variables-as-stdin-into-command-line-from-php for an example.

This applies to

nextcloud-spreedbox-license-keys/lib/Controller/LicenseController.php

Line 17 in 649f9f7

exec( 'cat ' . $tmpFilename . ' | spreedbox-license-keys --json request', $request) ;

and similar occurrences.

[PeterEdens]

Thanks, this is now being used for requesting the license when passing the json to spreedbox-license-keys. The install license code is using this this also.