[Zope] How do I ask Zope for the name of an uploaded file?

[Dieter Maurer]

Cameron Laird wrote at 2003-8-24 17:44 -0500:
 > I'll abbreviate this:  in a Python script that processes a
 > file upload, how do I express the name of the uploaded file--
 > that is, the name of the file the user selected with his 
 > browser?  I expected I'd find this in something like
 >   context.REQUEST.get_header('CONTENT-DISPOSITION')
 > or
 >   context.REQUEST.get_header('filename')
 > or somesuch, but I'm just getting None from those.

When you upload a file via a browser form, the file
is encapsulated in a "multipart/form-data" message.
The headers describing the file are not in the HTTP request
envelop (what you access by "REQUEST.get_header") but
in the headers of the part.

ZPublisher wraps an uploaded file in a "ZPublisher.HTTPRequest.FileUpload"
instance. Its "filename" attribute contains the filename
as passed by the browser (usually only the basename without the
directory part (exception: broken IE)).
Its "headers" attribute contains the headers of the
part (of the "multipart") corresponding to the file.


Dieter