How does one use magic to verify file type in a Django form clean method?

Question

I have written an email form class in Django with a FileField. I want to check the uploaded file for its type via checking its mimetype. Subsequently, I want to limit file t

Answer 1

You can use django-safe-filefield package to validate that uploaded file extension match it MIME-type.

from safe_filefield.forms import SafeFileField

class MyForm(forms.Form):

    attachment = SafeFileField(
        allowed_extensions=('xls', 'xlsx', 'csv')
    )