MAX_FILESIZE Check...

[Dexus]

I need a way to determine the file size and the file exceeds a certain size to the upload with the next chunk will be refused and returned to give an error. In addition, the upload will be deleted.

[pgaertig]

I plan to implement a call of backend before first chunk the same way as with final chunk but there will be state=start variable sent in addition to other known values like size, name, path. I have the same reason - restricting file size and file type. Backend could do anything and return status other than 2xx.

[Dexus]

ok, thats sound good. but i think a check on upload is a must, because the "bad guys" can manipulate the js, so it need to check twice.