Using inspekt with the $_FILES array

[Kenrick]

Im looking for an example of how I would use inspekt with the $_FILES
array, as there are not any file specific type tests. Unless I'm just
going to write my own regex using testRegex, there isn't an easy to
test for a valid filename, ie, making sure it doesnt have any crap in
it. For example here are the indices of the $_FILES array:

name
size
type
error
tmp_name

I could see maybe having some kind of filters for first the name of
the file, so that its safe, or to at least return a safe name like:
$name = preg_replace('/[^\w.-_]+/', '_',$name);

for the file size, that it is not larger then the max you set:

for the type, maybe a mime type check, passing in a list of acceptable
mime types to check against the files mime

not sure if there needs to be something for tmp_name, but for the
error, it could just check if there is an error or return false or
something.