check_role.py

from flask import request, abort, Response
from functools import wraps

def _realy_check_role_is_ok(roles, methods):
  # all conditions will be checked here.
  return True

def check_role(roles, methods):
    def inner_function(function):
      @wraps(function)
      def wrapper(*args, **kwargs):
        if _realy_check_roles_is_ok(roles, methods):
          return function(*args, **kwargs)
        return Response('Unauthorized Access', 401) # or abort(401)      
     return wrapper
    return inner_function