File upload from automated client

["Mayne, Peter" <Pe...@ap.spherion.com>]

I'm trying to provide a file upload point within my Tapestry application
that a client can send a file to using a standard HTTP POST with
multipart/formdata. This involves implementing IExternalPage: that part
seems to work.

Normally, an @Upload works fine for file upload. However, in this case, the
client is automated, so there is no user to first fetch the
Tapestry-generated page, fill in the @Upload field (and others), and submit
it: the client will just submit a POST directly to the Tapestry upload page.

If I cheat and look at the HTML that Tapestry generates for my form, and get
the client to upload the same fields with the right data, it seems to work,
but this seems rather dangerous to me, since I presume I'm messing about in
undocumented and unsupported territory.

Is it possible to do this properly within the Tapestry framework, or is it
safer to just write a servlet that uses commons-upload directly?

Thanks.

PJDM
-- 
Peter Mayne
Technology Consultant
Spherion Technology Solutions
Level 1, 243 Northbourne Avenue, Lyneham, ACT, 2602
T: 61 2 62689727  F: 61 2 62689777

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