Reshare with permissions ability or delegate sharing ability.

Currently when I share a file with a permission level e.g. read I would like to be able to specify whether the recipient can further share with the same permission level (or less) without having to get approval from the document owner.
This would be the same for a file being shared with edit permission with a specific recipient. That recipient should then be able to reshare the document to further recipients with the ability to specify either edit permission or less with read-only permission. The recipient should not be able to assign a permission level higher than what has been assigned to them.

This can be seen as a form of delegating the approval process for who can view/edit/share the original document. E.g. Manager shares document, but would like to give the line managers ability to further re-share with whom they determine as required.

Could be achieved by having a tick box 'allow reshare' of the original recipient being shared with.