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Jay Shirley |
at Jul 10, 2007 at 10:57 pm
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On 7/10/07, Jim Spath wrote:J. Shirley wrote:
On 7/10/07, Jim Spath wrote:
I would like to place a maximum file size limit on uploads, but am not
quite sure how to go about this in Catalyst.
I've done this in CGI scripts by reading in chunks of the file until I
hit some size limit, but couldn't find anything in the Catalyst docs.
Thanks!
- Jim
Hi Jim,
A better approach would be to configure the webserver to do this, that
way you aren't tying up your application.
As an example, if you use Apache simply do:
LimitRequestBody 1048576
-Jay
Jay,
Using the webserver is a definite possibility, and something we should
put in place anyways, to restrict large requests.
One downside of using such an option for limiting of file uploads is
that it restricts me from providing meaningful error messages to the
user within my application.
Another downside is that the limit would then be static across my
application, preventing me from setting different limits depending on
what the user is doing.
- Jim
Hi Jim,
I didn't realize that was what you were after. The upload object
($c->req->uploads->{name}) has a ->size method that returns the size
in bytes. You can check that to determine the actual attachment size.
I don't believe (and some of the Engine guys can correct me if
necessary) there is any way to split off while the upload is actually
happening unless you override prepare_body_chunk.
That method is called while processing the HTTP body and working with
an HTTP::Body object. I'm not sure how you could not do something
application wide, since this happens during prepare_body:
http://search.cpan.org/~jrockway/Catalyst-Manual-5.700701/lib/Catalyst/Manual/Internals.pod#Request_LifecycleSo -- as you can see there, I'm not sure how your action would know
about the limits unless you wrote a plugin for this, that then was
configured on a per-action basis. Something like PageCache, really.
Just wild speculation, but hope it helps.
Happy hacking,
-Jay
