def validate_font(value):
"""Simple extension based validation for uploads."""
ext = os.path.splitext(value.name)[1]
if ext.lower() not in (".ttf", ".otf"):
raise ValidationError(_("Unsupported file format."))
try:
get_font_name(value)
except OSError:
raise ValidationError(_("Unsupported file format."))
return value
def clean(self):
# Try to parse file only if it passed validation
if "font" not in self.field_errors and not self.family:
self.family, self.style = get_font_name(self.font)