Klaus Herrmann writes:

... How do I determinate the filename and mime-type of the uploaded file?

i have <input type=file size=18 maxlength=3000000 name=attached_file> and can get my data with attached_file.read(), but how do i do it when i want to have filename and mime-type correctly filled in in <dtml-boundary type=??? encode=base64 filename=??? name=???> Maybe, you should look at the source documentions for "ZPublisher.HTTPRequest.FileUpload".

You will see there, that "FileUpload" objects have attributes 'filename' and 'headers'. In headers, you will find the "Content-Type", provided that your browser has send this information (as it should). Then, you need to know, that "dtml-boundary" has "*_expr" argument variants that allow to provide expressions as values rather than fixed constants. That's all you should need. Dieter