qr_code.py 文件源码

def get_url_protection_options(user=None):
    defaults = {
        'TOKEN_LENGTH': 20,
        'SIGNING_KEY': settings.SECRET_KEY,
        'SIGNING_SALT': 'qr_code_url_protection_salt',
        'ALLOWS_EXTERNAL_REQUESTS_FOR_REGISTERED_USER': False,
        'ALLOWS_EXTERNAL_REQUESTS': False
    }
    options = defaults
    if hasattr(settings, 'QR_CODE_URL_PROTECTION') and isinstance(settings.QR_CODE_URL_PROTECTION, dict):
        options.update(settings.QR_CODE_URL_PROTECTION)
        # Evaluate the callable if required.
        if callable(options['ALLOWS_EXTERNAL_REQUESTS_FOR_REGISTERED_USER']):
            options['ALLOWS_EXTERNAL_REQUESTS'] = user and options['ALLOWS_EXTERNAL_REQUESTS_FOR_REGISTERED_USER'](user)
        elif options['ALLOWS_EXTERNAL_REQUESTS_FOR_REGISTERED_USER'] and user:
            if callable(user.is_authenticated):
                # Django version < 1.10
                options['ALLOWS_EXTERNAL_REQUESTS'] = user.is_authenticated()
            else:
                # Django version >= 1.10
                options['ALLOWS_EXTERNAL_REQUESTS'] = user.is_authenticated
        else:
            options['ALLOWS_EXTERNAL_REQUESTS'] = False

    return options