Thank you very much for the quick response Mark. I did have a look at that 
link, but did not get an answer to what i was looking for. Let me elaborate.
Let me put it in simple terms (without getting into my need complexity :)), 
What i need is
I have an HTML form to upload files. 
I can hand it over to sling to do the post after file is selected, 
but before that i want to check if the file has virus, 
or is within the permitted file size & type (this i can do with javascript, but 
if there is a user who uses curl to upload, need to trap that)

After i trap and validate the file is fine for upload, i need to hand it over 
to sling to finish the POST operation

I hope this gives an idea of the scenario. I am not a JAVA person, so trying to 
see if i can accomplish this with something like POST.esp :).


Regards
Jithesh



On Thursday, August 25, 2011 at 11:22 AM, Mark Herman wrote:

> Not sure about "hand it back to normal POST operation" but this[1] may get
> you what you need.
> 
> [1] http://dev.day.com/content/ddc/blog/2008/07/fileuploadsinsling.html
> 
> 
> -----Original Message-----
> From: Jithesh A P [mailto:[email protected]] 
> Sent: Thursday, August 25, 2011 1:59 PM
> To: [email protected] (mailto:[email protected])
> Subject: processing POST help - direction needed
> 
> Hi Folks,
> 
> I am stuck at how to handle post of a file. For example i want to upload a
> file, do some processing like check for virus (during POST), then hand it
> back to normal POST operation.
> 
> Is it possible to achieve this using POST.esp and how?
> 
> Your input will be greatly appreciated.
> 
> Regards
> Jithesh

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