Martin Gebert <[EMAIL PROTECTED]> wrote:
> In my HowTo about dealing with BLOBs
> <http://www.zope.org/Members/murphy/MySQL-BLOBs> I use a rather
> unelegant but working method to get the content type of an uploaded
> file. Stefan Tjarks has now drawn my attention to the Header attributes
> of the uploaded form data, namely the "Content-Type" attribute which
> seems to reveal the MIME type (photo.headers['Content-Type'] for the
> given exsample).
> My sorrow is now that this information isn't 100 % reliable, 'cause the
> Zope core (esp. the Image and File classes) doesn't seem to use this
> possibility either, but implements it's own methods which I use in the
> HowTo, too. The responsible class ZPublisher.HTTPRequest.FileUpload
> seems only to reach through the header information from the browser.
> Also I've learned through SelfHTML that the MIME type support of
> browsers has holes sometimes, as described for the accept attribute of
> the <form> tag.
> Does anybody have further information on that issue, and why
> headers['Content-Type'] isn't used by Zope (it is, in fact, but in
> ZPublisher for seemingly other purposes)?
The File and Image objects use the Content-Type header on upload if it
is provided by the browser. Only if none is provided does it guess one.
Florent Guillaume, Nuxeo (Paris, France)
+33 1 40 33 79 87 http://nuxeo.com mailto:[EMAIL PROTECTED]
Zope-Dev maillist - [EMAIL PROTECTED]
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