gistfile1.txt

def require_authentication(function):
    INVALID_CREDENTIALS = 0
    INVALID_PARAMETERS = 1

    def error(errorType):
        if errorType == INVALID_CREDENTIALS:
            return response(code = '403', message = 'Invalid username or password')
        elif errorType == INVALID_PARAMETERS:
            return response(code = '100', message = 'Username or password not provided')

    def wrap(request, *args, **kwargs):
        if ('username' not in request.REQUEST.keys() or 'password' not in request.REQUEST.keys()):
            return error(INVALID_PARAMETERS)
        elif (not authenticate(username = (True and request.REQUEST.get('username') or request.REQUEST.get('email')), password = request.REQUEST.get('password'))):
            return error(INVALID_CREDENTIALS)

        return function(request, *args, **kwargs)

    return wrap

@require_authentication
def authenticate(request):
	getparams = request.GET
	return response(code='200', message='Authenticated!')