Mage_Core_Model_File_Uploader::checkAllowedExtension PHP Méthode

    public function checkAllowedExtension($extension)
    {
        //validate with protected file types
        /** @var $validator Mage_Core_Model_File_Validator_NotProtectedExtension */
        $validator = Mage::getSingleton('core/file_validator_notProtectedExtension');
        if (!$validator->isValid($extension)) {
            return false;
        }
        return parent::checkAllowedExtension($extension);
    }