[FEATURE] Optionally restrict allowed filenames to user groups

[h-e-l-l-o-w-o-r-l-d]

Hi,

we recently switched from LFEditor to translate_locallang because of the killer-feature "allowedFiles" (for non-admins). :-)

We have a multidomain-environment with editors working independently of each other, so we created different files for different users. Right now all editors can edit all allowed files, so I would like to optionally restrict these files to a certain user group.

Example:

# cat=basic//8; type=string; label=Allowed filenames for non-admin users (comma separated, empty=all)
allowedFiles = locallang_users_1.xlf,locallang_users_2.xlf,locallang_users_3.xlf

# cat=basic//x; type=string; label=Restrict allowedFiles via user groups (comma separated, empty=no restriction). The values are processed in the same order as the values under "allowedFiles".
allowedFilesUserGroups = 23,,64

Result:

locallang_users_1.xlf -> restrict to users with group 23
locallang_users_2.xlf -> no restriction
locallang_users_3.xlf -> restrict to users with group 64

Would that be possible?