this removes the need for temporary storages with some external storage backends.
The new method is added to a separate interface to maintain compatibility with
storage backends implementing the storage interface directly (without inheriting common)
Currently the interface is implemented for objectstorage based storages and local storage
and used by webdav uploads
Signed-off-by: Robin Appelman <robin@icewind.nl>
Object storage instances always fall back to the content based mimetype detection, because the file name for object storage was always random due to the fact that it was temporarily storage in a generated temp file. This patch adds a check before that to make sure to use the original file name for this purpose and also remove possible other extensions like the versioning or part file extension.
Signed-off-by: Morris Jobke <hey@morrisjobke.de>