diff options
Diffstat (limited to 'moon_authz/moon_authz/api/authorization.py')
| -rw-r--r-- | moon_authz/moon_authz/api/authorization.py | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/moon_authz/moon_authz/api/authorization.py b/moon_authz/moon_authz/api/authorization.py deleted file mode 100644 index 59af295d..00000000 --- a/moon_authz/moon_authz/api/authorization.py +++ /dev/null @@ -1,397 +0,0 @@ -# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors -# This software is distributed under the terms and conditions of the 'Apache-2.0' -# license which can be found in the file 'LICENSE' in this package distribution -# or at 'http://www.apache.org/licenses/LICENSE-2.0'. - -import itertools -import pickle -import logging -import flask -from flask import request -from flask_restful import Resource -from python_moonutilities import exceptions - -LOGGER = logging.getLogger("moon.authz.api." + __name__) - - -class Authz(Resource): - """ - Endpoint for authz requests - """ - __version__ = "4.3.1" - - __urls__ = ( - "/authz", - "/authz/", - ) - - pdp_id = None - meta_rule_id = None - keystone_project_id = None - payload = None - - def __init__(self, **kwargs): - component_data = kwargs.get("component_data", {}) - self.component_id = component_data['component_id'] - self.pdp_id = component_data['pdp_id'] - self.meta_rule_id = component_data['meta_rule_id'] - self.keystone_project_id = component_data['keystone_project_id'] - self.cache = kwargs.get("cache") - self.context = None - - def post(self): - """Get a response on an authorization request - - :request: - - :return: { - "args": {}, - "ctx": { - "action_name": "4567", - "id": "123456", - "method": "authz", - "object_name": "234567", - "subject_name": "123456", - "user_id": "admin" - }, - "error": { - "code": 500, - "description": "", - "title": "Moon Error" - }, - "intra_extension_id": "123456", - "result": false - } - :internal_api: authz - """ - self.context = pickle.loads(request.data) - self.context.set_cache(self.cache) - self.context.increment_index() - self.context.update_target() - # FIXME (asteroide): force the update but we should not do that - # a better way is to build the bilateral link between Master and Slaves - self.cache.update() - if not self.run(): - raise exceptions.MoonError("Error in the request status={}".format( - self.context.current_state)) - self.context.delete_cache() - response = flask.make_response(pickle.dumps(self.context)) - response.headers['content-type'] = 'application/octet-stream' - return response - - def run(self): - result, message = self.__check_rules() - if result: - return self.__exec_instructions(result) - self.context.current_state = "deny" - # self.__exec_next_state(result) - return - - def __check_rules(self): - scopes_list = list() - current_header_id = self.context.headers[self.context.index] - # Context.update_target(context) - if not self.context.pdp_set: - raise exceptions.PdpUnknown - if current_header_id not in self.context.pdp_set: - raise Exception('Invalid index') - current_pdp = self.context.pdp_set[current_header_id] - category_list = list() - if 'meta_rules' not in current_pdp: - raise exceptions.PdpContentError - try: - category_list.extend(current_pdp["meta_rules"]["subject_categories"]) - category_list.extend(current_pdp["meta_rules"]["object_categories"]) - category_list.extend(current_pdp["meta_rules"]["action_categories"]) - except Exception: - raise exceptions.MetaRuleContentError - if 'target' not in current_pdp: - raise exceptions.PdpContentError - for category in category_list: - scope = list(current_pdp['target'][category]) - if not scope: - LOGGER.warning("Scope in category {} is empty".format(category)) - raise exceptions.AuthzException - scopes_list.append(scope) - # policy_id = self.cache.get_policy_from_meta_rules("admin", current_header_id) - if self.context.current_policy_id not in self.cache.rules: - raise exceptions.PolicyUnknown - if 'rules' not in self.cache.rules[self.context.current_policy_id]: - raise exceptions.RuleUnknown - for item in itertools.product(*scopes_list): - req = list(item) - for rule in self.cache.rules[self.context.current_policy_id]["rules"]: - if req == rule['rule']: - return rule['instructions'], "" - LOGGER.warning("No rule match the request...") - return False, "No rule match the request..." - - def __update_subject_category_in_policy(self, operation, target): - result = False - # try: - # policy_name, category_name, data_name = target.split(":") - # except ValueError: - # LOGGER.error("Cannot understand value in instruction ({})".format(target)) - # return False - # # pdp_set = self.payload["authz_context"]['pdp_set'] - # for meta_rule_id in self.context.pdp_set: - # if meta_rule_id == "effect": - # continue - # if self.context.pdp_set[meta_rule_id]["meta_rules"]["name"] == policy_name: - # for category_id, category_value in self.cache.subject_categories.items(): - # if category_value["name"] == "role": - # subject_category_id = category_id - # break - # else: - # LOGGER.error("Cannot understand category in instruction ({})".format(target)) - # return False - # subject_data_id = None - # for data in PolicyManager.get_subject_data("admin", policy_id, - # category_id=subject_category_id): - # for data_id, data_value in data['data'].items(): - # if data_value["name"] == data_name: - # subject_data_id = data_id - # break - # if subject_data_id: - # break - # else: - # LOGGER.error("Cannot understand data in instruction ({})".format(target)) - # return False - # if operation == "add": - # self.payload["authz_context"]['pdp_set'][meta_rule_id]['target'][ - # subject_category_id].append(subject_data_id) - # elif operation == "delete": - # try: - # self.payload["authz_context"]['pdp_set'][meta_rule_id]['target'][ - # subject_category_id].remove(subject_data_id) - # except ValueError: - # LOGGER.warning("Cannot remove role {} from target".format(data_name)) - # result = True - # break - return result - - def __update_container_chaining(self): - for index in range(len(self.payload["authz_context"]['headers'])): - self.payload["container_chaining"][index]["meta_rule_id"] = \ - self.payload["authz_context"]['headers'][index] - - def __get_container_from_meta_rule(self, meta_rule_id): - for index in range(len(self.payload["authz_context"]['headers'])): - if self.payload["container_chaining"][index]["meta_rule_id"] == meta_rule_id: - return self.payload["container_chaining"][index] - - def __update_headers(self, name): - # context = self.payload["authz_context"] - for meta_rule_id, meta_rule_value in self.context.pdp_set.items(): - if meta_rule_id == "effect": - continue - if meta_rule_value["meta_rules"]["name"] == name: - self.context.headers.append(meta_rule_id) - return True - return False - - # def __exec_next_state(self, rule_found): - # index = self.context.index - # current_meta_rule = self.context.headers[index] - # current_container = self.__get_container_from_meta_rule(current_meta_rule) - # current_container_genre = current_container["genre"] - # try: - # next_meta_rule = self.context.headers[index + 1] - # except IndexError: - # next_meta_rule = None - # if current_container_genre == "authz": - # if rule_found: - # return True - # pass - # if next_meta_rule: - # # next will be session if current is deny and session is unset - # if self.payload["authz_context"]['pdp_set'][next_meta_rule]['effect'] == "unset": - # return notify( - # request_id=self.payload["authz_context"]["request_id"], - # container_id=self.__get_container_from_meta_rule(next_meta_rule)[ - # 'container_id'],payload=self.payload) - # # next will be delegation if current is deny and session is passed or deny and - # delegation is unset - # else: - # LOG.error("Delegation is not developed!") - # - # else: - # # else next will be None and the request is sent to router - # return self.__return_to_router() - # elif current_container_genre == "session": - # pass - # # next will be next container in headers if current is passed - # if self.payload["authz_context"]['pdp_set'][current_meta_rule]['effect'] == "passed": - # return notify( - # request_id=self.payload["authz_context"]["request_id"], - # container_id=self.__get_container_from_meta_rule(next_meta_rule)[ - # 'container_id'],payload=self.payload) - # # next will be None if current is grant and the request is sent to router - # else: - # return self.__return_to_router() - # elif current_container_genre == "delegation": - # LOG.error("Delegation is not developed!") - # # next will be authz if current is deny - # # next will be None if current is grant and the request is sent to router - - # def __return_to_router(self): - # call(endpoint="security_router", - # ctx={"id": self.component_id, - # "call_master": False, - # "method": "return_authz", - # "request_id": self.payload["authz_context"]["request_id"]}, - # method="route", - # args=self.payload["authz_context"]) - - def __exec_instructions(self, instructions): - if type(instructions) is dict: - instructions = [instructions, ] - if type(instructions) not in (list, tuple): - raise exceptions.RuleContentError("Bad instructions format") - for instruction in instructions: - for key in instruction: - if key == "decision": - if instruction["decision"] == "grant": - self.context.current_state = "grant" - LOGGER.info("__exec_instructions True %s" % self.context.current_state) - return True - - self.context.current_state = instruction["decision"].lower() - elif key == "chain": - result = self.__update_headers(**instruction["chain"]) - if not result: - self.context.current_state = "deny" - else: - self.context.current_state = "passed" - elif key == "update": - result = self.__update_subject_category_in_policy(**instruction["update"]) - if not result: - self.context.current_state = "deny" - else: - self.context.current_state = "passed" - LOGGER.info("__exec_instructions False %s" % self.context.current_state) - - # def __update_current_request(self): - # index = self.payload["authz_context"]["index"] - # current_header_id = self.payload["authz_context"]['headers'][index] - # previous_header_id = self.payload["authz_context"]['headers'][index - 1] - # current_policy_id = PolicyManager.get_policy_from_meta_rules("admin", current_header_id) - # previous_policy_id = PolicyManager.get_policy_from_meta_rules("admin", previous_header_id) - # # FIXME (asteroide): must change those lines to be ubiquitous against any type of policy - # if self.payload["authz_context"]['pdp_set'][current_header_id]['meta_rules'][ - # 'name'] == "session": - # subject = self.payload["authz_context"]['current_request'].get("subject") - # subject_category_id = None - # role_names = [] - # for category_id, category_value in ModelManager.get_subject_categories("admin").items(): - # if category_value["name"] == "role": - # subject_category_id = category_id - # break - # for assignment_id, assignment_value in PolicyManager.get_subject_assignments( - # "admin", previous_policy_id, subject, subject_category_id).items(): - # for data_id in assignment_value["assignments"]: - # data = PolicyManager.get_subject_data( - # "admin", previous_policy_id, data_id, subject_category_id) - # for _data in data: - # for key, value in _data["data"].items(): - # role_names.append(value["name"]) - # new_role_ids = [] - # for perimeter_id, perimeter_value in PolicyManager.get_objects( - # "admin", current_policy_id).items(): - # if perimeter_value["name"] in role_names: - # new_role_ids.append(perimeter_id) - # break - # perimeter_id = None - # for perimeter_id, perimeter_value in PolicyManager.get_actions( - # "admin", current_policy_id).items(): - # if perimeter_value["name"] == "*": - # break - # - # self.payload["authz_context"]['current_request']['object'] = new_role_ids[0] - # self.payload["authz_context"]['current_request']['action'] = perimeter_id - # elif self.payload["authz_context"]['pdp_set'][current_header_id]['meta_rules']['name'] == "rbac": - # self.payload["authz_context"]['current_request']['subject'] = \ - # self.payload["authz_context"]['initial_request']['subject'] - # self.payload["authz_context"]['current_request']['object'] = \ - # self.payload["authz_context"]['initial_request']['object'] - # self.payload["authz_context"]['current_request']['action'] = \ - # self.payload["authz_context"]['initial_request']['action'] - - def get_authz(self): - # self.keystone_project_id = payload["id"] - # LOG.info("get_authz {}".format(payload)) - # self.payload = payload - try: - # if "authz_context" not in payload: - # try: - # self.payload["authz_context"] = Context(self.keystone_project_id, - # self.payload["subject_name"], - # self.payload["object_name"], - # self.payload["action_name"], - # self.payload["request_id"]).to_dict() - # except exceptions.SubjectUnknown: - # ctx = { - # "subject_name": self.payload["subject_name"], - # "object_name": self.payload["object_name"], - # "action_name": self.payload["action_name"], - # } - # call("moon_manager", method="update_from_master", ctx=ctx, args={}) - # self.payload["authz_context"] = Context(self.keystone_project_id, - # self.payload["subject_name"], - # self.payload["object_name"], - # self.payload["action_name"], - # self.payload["request_id"]).to_dict() - # except exceptions.ObjectUnknown: - # ctx = { - # "subject_name": self.payload["subject_name"], - # "object_name": self.payload["object_name"], - # "action_name": self.payload["action_name"], - # } - # call("moon_manager", method="update_from_master", ctx=ctx, args={}) - # self.payload["authz_context"] = Context(self.keystone_project_id, - # self.payload["subject_name"], - # self.payload["object_name"], - # self.payload["action_name"], - # self.payload["request_id"]).to_dict() - # except exceptions.ActionUnknown: - # ctx = { - # "subject_name": self.payload["subject_name"], - # "object_name": self.payload["object_name"], - # "action_name": self.payload["action_name"], - # } - # call("moon_manager", method="update_from_master", ctx=ctx, args={}) - # self.payload["authz_context"] = Context(self.keystone_project_id, - # self.payload["subject_name"], - # self.payload["object_name"], - # self.payload["action_name"], - # self.payload["request_id"]).to_dict() - # self.__update_container_chaining() - # else: - # self.payload["authz_context"]["index"] += 1 - # self.__update_current_request() - result, message = self.__check_rules() - current_header_id = self.payload["authz_context"]['headers'][ - self.payload["authz_context"]['index']] - if result: - self.__exec_instructions(result) - else: - self.payload["authz_context"]['pdp_set'][current_header_id]["effect"] = "deny" - self.__exec_next_state(result) - return {"authz": result, - "error": message, - "pdp_id": self.pdp_id, - "args": self.payload} - except Exception as e: - try: - LOGGER.error(self.payload["authz_context"]) - except KeyError: - LOGGER.error("Cannot find \"authz_context\" in context") - LOGGER.error(e, exc_info=True) - return {"authz": False, - "error": str(e), - "pdp_id": self.pdp_id, - "args": self.payload} - - def head(self, uuid=None, subject_name=None, object_name=None, action_name=None): - LOGGER.info("HEAD request") - return "", 200 |