__copyright__ = "Copyright © Stichting SciPost (SciPost Foundation)"
__license__ = "AGPL v3"


import os

from common.utils import BaseMailUtil


def validate_file_extention(value, allowed_extentions):
    """Check if a filefield (value) has allowed extentions."""
    ext = os.path.splitext(value.name)[1]  # [0] returns path+filename
    return ext.lower() in allowed_extentions