Waylan Limberg wrote:
I envision a simple script that intercepts the
upload submit, checks the actual file size against the specified limit
(perhaps in a hidden field or hard coded in script or even via an ajax
request (but why?)) and either returns an error message or submits the
upload.
No, those projects use Ajax to periodically poll the server about how
many bytes already uploaded. This is why the server should feed data to
the framework as soon as it receives them and not after it already have
got everything. Then your application code on server can really know how
much data it's going to get (from Content-Length) and the store data
being received to some known location in memory or on disk and tell to
parallel Ajax request the progress.
