CFFILE Upload - Accept

File extensions are just a Windows thing.  Other operating systems don't use the file extension (if a file has one) to identify the file type.  That's probably why Adobe went a more generic route.

But the docs seem to be making a connection between a file upload and the CFFILE tag.  CFFILE doesn't have anything to do with uploading a file from a browser... that's between the client browser and the web server.  All CFFILE does is copy the uploaded file from the temporary upload dir to [wherever you want it].  the "upload" action of CFFILE is quite poorly named, I think

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Adam

• Then why can't I list acceptable file extensions instead

of trying to figure out all of the mime types for a

particular file?

Because the tag does not implement such a feature?

• Is there a downside to using extensions vs mime types?

Mime types are easily spoof-able. So checking the extension, in combination with other measures, is actually safer.

http://www.petefreitag.com/item/701.cfm