def clean_document(self):
try:
uploaded_file = self.cleaned_data['document']
temp_doc = NamedTemporaryFile(mode='w+', delete=True)
temp_doc.write(uploaded_file.read())
temp_doc.flush()
temp_doc.seek(0)
temp_doc._size = uploaded_file._size
temp_doc._content_type = uploaded_file.content_type
validate_file(temp_doc)
temp_doc.close()
except forms.ValidationError:
logger.error(u'User was trying to upload file with wrong format.')
raise
return uploaded_file
