diff options
Diffstat (limited to 'moonv4/moon_utilities/moon_utilities/cache.py')
| -rw-r--r-- | moonv4/moon_utilities/moon_utilities/cache.py | 520 |
1 files changed, 520 insertions, 0 deletions
diff --git a/moonv4/moon_utilities/moon_utilities/cache.py b/moonv4/moon_utilities/moon_utilities/cache.py new file mode 100644 index 00000000..7c938b39 --- /dev/null +++ b/moonv4/moon_utilities/moon_utilities/cache.py @@ -0,0 +1,520 @@ +import logging +import time +import requests +from uuid import uuid4 +from moon_utilities import configuration, exceptions + +LOG = logging.getLogger("moon.utilities.cache") + + +class Cache(object): + # TODO (asteroide): set cache integer in CONF file + __UPDATE_INTERVAL = 10 + + __CONTAINERS = {} + __CONTAINERS_UPDATE = 0 + + __CONTAINER_CHAINING_UPDATE = 0 + __CONTAINER_CHAINING = {} + + __PDP = {} + __PDP_UPDATE = 0 + + __POLICIES = {} + __POLICIES_UPDATE = 0 + + __MODELS = {} + __MODELS_UPDATE = 0 + + __SUBJECTS = {} + __OBJECTS = {} + __ACTIONS = {} + + __SUBJECT_ASSIGNMENTS = {} + __OBJECT_ASSIGNMENTS = {} + __ACTION_ASSIGNMENTS = {} + + __SUBJECT_CATEGORIES = {} + __SUBJECT_CATEGORIES_UPDATE = 0 + __OBJECT_CATEGORIES = {} + __OBJECT_CATEGORIES_UPDATE = 0 + __ACTION_CATEGORIES = {} + __ACTION_CATEGORIES_UPDATE = 0 + + __META_RULES = {} + __META_RULES_UPDATE = 0 + + __RULES = {} + __RULES_UPDATE = 0 + + __AUTHZ_REQUESTS = {} + + + def __init__(self): + self.manager_url = "{}://{}:{}".format( + configuration.get_components()['manager'].get('protocol', 'http'), + configuration.get_components()['manager']['hostname'], + configuration.get_components()['manager']['port'] + ) + self.orchestrator_url = "{}://{}:{}".format( + configuration.get_components()['orchestrator'].get('protocol', 'http'), + configuration.get_components()['orchestrator']['hostname'], + configuration.get_components()['orchestrator']['port'] + ) + + def update(self): + self.__update_container() + self.__update_pdp() + self.__update_policies() + self.__update_models() + for key, value in self.__PDP.items(): + # LOG.info("Updating container_chaining with {}".format(value["keystone_project_id"])) + self.__update_container_chaining(value["keystone_project_id"]) + + @property + def authz_requests(self): + return self.__AUTHZ_REQUESTS + + # perimeter functions + + @property + def subjects(self): + return self.__SUBJECTS + + def update_subjects(self, policy_id=None): + req = requests.get("{}/policies/{}/subjects".format(self.manager_url, policy_id)) + self.__SUBJECTS[policy_id] = req.json()['subjects'] + + def get_subject(self, policy_id, name): + try: + for _subject_id, _subject_dict in self.__SUBJECTS[policy_id].items(): + if _subject_dict["name"] == name: + return _subject_id + except KeyError: + pass + self.update_subjects(policy_id) + for _subject_id, _subject_dict in self.__SUBJECTS[policy_id].items(): + if _subject_dict["name"] == name: + return _subject_id + raise exceptions.SubjectUnknown("Cannot find subject {}".format(name)) + + @property + def objects(self): + return self.__OBJECTS + + def update_objects(self, policy_id=None): + req = requests.get("{}/policies/{}/objects".format(self.manager_url, policy_id)) + self.__OBJECTS[policy_id] = req.json()['objects'] + + def get_object(self, policy_id, name): + try: + for _object_id, _object_dict in self.__OBJECTS[policy_id].items(): + if _object_dict["name"] == name: + return _object_id + except KeyError: + pass + self.update_objects(policy_id) + for _object_id, _object_dict in self.__OBJECTS[policy_id].items(): + if _object_dict["name"] == name: + return _object_id + raise exceptions.SubjectUnknown("Cannot find object {}".format(name)) + + @property + def actions(self): + return self.__ACTIONS + + def update_actions(self, policy_id=None): + req = requests.get("{}/policies/{}/actions".format(self.manager_url, policy_id)) + self.__ACTIONS[policy_id] = req.json()['actions'] + + def get_action(self, policy_id, name): + try: + for _action_id, _action_dict in self.__ACTIONS[policy_id].items(): + if _action_dict["name"] == name: + return _action_id + except KeyError: + pass + self.update_actions(policy_id) + for _action_id, _action_dict in self.__ACTIONS[policy_id].items(): + if _action_dict["name"] == name: + return _action_id + raise exceptions.SubjectUnknown("Cannot find action {}".format(name)) + + # meta_rule functions + + @property + def meta_rules(self): + current_time = time.time() + if self.__META_RULES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_meta_rules() + self.__META_RULES_UPDATE = current_time + return self.__META_RULES + + def __update_meta_rules(self): + req = requests.get("{}/meta_rules".format(self.manager_url)) + self.__META_RULES = req.json()['meta_rules'] + + # rule functions + + @property + def rules(self): + current_time = time.time() + if self.__RULES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_rules() + self.__RULES_UPDATE = current_time + return self.__RULES + + def __update_rules(self): + for policy_id in self.__POLICIES: + LOG.info("Get {}".format("{}/policies/{}/rules".format( + self.manager_url, policy_id))) + req = requests.get("{}/policies/{}/rules".format( + self.manager_url, policy_id)) + self.__RULES[policy_id] = req.json()['rules'] + LOG.info("UPDATE RULES {}".format(self.__RULES)) + + # assignment functions + + @property + def subject_assignments(self): + return self.__SUBJECT_ASSIGNMENTS + + def update_subject_assignments(self, policy_id=None, perimeter_id=None): + if perimeter_id: + req = requests.get("{}/policies/{}/subject_assignments/{}".format( + self.manager_url, policy_id, perimeter_id)) + else: + req = requests.get("{}/policies/{}/subject_assignments".format(self.manager_url, policy_id)) + if policy_id not in self.__SUBJECT_ASSIGNMENTS: + self.__SUBJECT_ASSIGNMENTS[policy_id] = {} + self.__SUBJECT_ASSIGNMENTS[policy_id].update(req.json()['subject_assignments']) + + def get_subject_assignments(self, policy_id, perimeter_id, category_id): + if policy_id not in self.subject_assignments: + self.update_subject_assignments(policy_id, perimeter_id) + if policy_id not in self.subject_assignments: + raise Exception("Cannot found the policy {}".format(policy_id)) + for key, value in self.subject_assignments[policy_id].items(): + if perimeter_id == value['subject_id'] and category_id == value['category_id']: + return value['assignments'] + return [] + + @property + def object_assignments(self): + return self.__OBJECT_ASSIGNMENTS + + def update_object_assignments(self, policy_id=None, perimeter_id=None): + if perimeter_id: + req = requests.get("{}/policies/{}/object_assignments/{}".format( + self.manager_url, policy_id, perimeter_id)) + else: + req = requests.get("{}/policies/{}/object_assignments".format(self.manager_url, policy_id)) + if policy_id not in self.__OBJECT_ASSIGNMENTS: + self.__OBJECT_ASSIGNMENTS[policy_id] = {} + self.__OBJECT_ASSIGNMENTS[policy_id].update(req.json()['object_assignments']) + + def get_object_assignments(self, policy_id, perimeter_id, category_id): + if policy_id not in self.object_assignments: + self.update_object_assignments(policy_id, perimeter_id) + if policy_id not in self.object_assignments: + raise Exception("Cannot found the policy {}".format(policy_id)) + for key, value in self.object_assignments[policy_id].items(): + if perimeter_id == value['object_id'] and category_id == value['category_id']: + return value['assignments'] + return [] + + @property + def action_assignments(self): + return self.__ACTION_ASSIGNMENTS + + def update_action_assignments(self, policy_id=None, perimeter_id=None): + if perimeter_id: + req = requests.get("{}/policies/{}/action_assignments/{}".format( + self.manager_url, policy_id, perimeter_id)) + else: + req = requests.get("{}/policies/{}/action_assignments".format(self.manager_url, policy_id)) + if policy_id not in self.__ACTION_ASSIGNMENTS: + self.__ACTION_ASSIGNMENTS[policy_id] = {} + self.__ACTION_ASSIGNMENTS[policy_id].update(req.json()['action_assignments']) + + def get_action_assignments(self, policy_id, perimeter_id, category_id): + if policy_id not in self.action_assignments: + self.update_action_assignments(policy_id, perimeter_id) + if policy_id not in self.action_assignments: + raise Exception("Cannot found the policy {}".format(policy_id)) + for key, value in self.action_assignments[policy_id].items(): + if perimeter_id == value['action_id'] and category_id == value['category_id']: + return value['assignments'] + return [] + + # category functions + + @property + def subject_categories(self): + current_time = time.time() + if self.__SUBJECT_CATEGORIES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_subject_categories() + self.__SUBJECT_CATEGORIES_UPDATE = current_time + return self.__SUBJECT_CATEGORIES + + def __update_subject_categories(self): + req = requests.get("{}/policies/subject_categories".format( + self.manager_url)) + self.__SUBJECT_CATEGORIES.update(req.json()['subject_categories']) + + @property + def object_categories(self): + current_time = time.time() + if self.__OBJECT_CATEGORIES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_object_categories() + self.__OBJECT_CATEGORIES_UPDATE = current_time + return self.__OBJECT_CATEGORIES + + def __update_object_categories(self): + req = requests.get("{}/policies/object_categories".format( + self.manager_url)) + self.__OBJECT_CATEGORIES.update(req.json()['object_categories']) + + @property + def action_categories(self): + current_time = time.time() + if self.__ACTION_CATEGORIES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_action_categories() + self.__ACTION_CATEGORIES_UPDATE = current_time + return self.__ACTION_CATEGORIES + + def __update_action_categories(self): + req = requests.get("{}/policies/action_categories".format( + self.manager_url)) + self.__ACTION_CATEGORIES.update(req.json()['action_categories']) + + # PDP functions + + def __update_pdp(self): + req = requests.get("{}/pdp".format(self.manager_url)) + pdp = req.json() + for _pdp in pdp["pdps"].values(): + if _pdp['keystone_project_id'] not in self.__CONTAINER_CHAINING: + self.__CONTAINER_CHAINING[_pdp['keystone_project_id']] = {} + # Note (asteroide): force update of chaining + self.__update_container_chaining(_pdp['keystone_project_id']) + for key, value in pdp["pdps"].items(): + self.__PDP[key] = value + + @property + def pdp(self): + """Policy Decision Point + Example of content: + { + "pdp_id": { + "keystone_project_id": "keystone_project_id", + "name": "pdp1", + "description": "test", + "security_pipeline": [ + "policy_id" + ] + } + } + + :return: + """ + current_time = time.time() + if self.__PDP_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_pdp() + self.__PDP_UPDATE = current_time + return self.__PDP + + # policy functions + def __update_policies(self): + req = requests.get("{}/policies".format(self.manager_url)) + policies = req.json() + for key, value in policies["policies"].items(): + self.__POLICIES[key] = value + + @property + def policies(self): + current_time = time.time() + if self.__POLICIES_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_policies() + self.__POLICIES_UPDATE = current_time + return self.__POLICIES + + # model functions + + def __update_models(self): + req = requests.get("{}/models".format(self.manager_url)) + models = req.json() + for key, value in models["models"].items(): + self.__MODELS[key] = value + + @property + def models(self): + current_time = time.time() + if self.__MODELS_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_models() + self.__MODELS_UPDATE = current_time + return self.__MODELS + + # helper functions + + def get_policy_from_meta_rules(self, meta_rule_id): + for pdp_key, pdp_value in self.pdp.items(): + for policy_id in pdp_value["security_pipeline"]: + model_id = self.policies[policy_id]["model_id"] + if meta_rule_id in self.models[model_id]["meta_rules"]: + return policy_id + + def get_pdp_from_keystone_project(self, keystone_project_id): + for pdp_key, pdp_value in self.pdp.items(): + if keystone_project_id == pdp_value["keystone_project_id"]: + return pdp_key + + def get_keystone_project_id_from_policy_id(self, policy_id): + for pdp_key, pdp_value in self.pdp.items(): + if policy_id in pdp_value["security_pipeline"]: + return pdp_value["keystone_project_id"] + # for policy_id in pdp_value["security_pipeline"]: + # model_id = self.policies[policy_id]["model_id"] + # if meta_rule_id in self.models[model_id]["meta_rules"]: + # return pdp_value["keystone_project_id"] + + def get_containers_from_keystone_project_id(self, keystone_project_id, meta_rule_id=None): + for container_id, container_value in self.containers.items(): + if 'keystone_project_id' not in container_value: + continue + if container_value['keystone_project_id'] == keystone_project_id: + if not meta_rule_id: + yield container_id, container_value + elif container_value['meta_rule_id'] == meta_rule_id: + yield container_id, container_value + break + + # containers functions + + def __update_container(self): + req = requests.get("{}/containers".format(self.manager_url)) + containers = req.json() + for key, value in containers["containers"].items(): + if key not in self.__CONTAINERS: + self.__CONTAINERS[key] = value + else: + self.__CONTAINERS[key].update(value) + + def add_container(self, container_data): + """Add a new container in the cache + + :param container_data: dictionary with information for the container + Example: + { + "name": name, + "hostname": name, + "port": { + "PrivatePort": tcp_port, + "Type": "tcp", + "IP": "0.0.0.0", + "PublicPort": tcp_port + }, + "keystone_project_id": uuid, + "pdp_id": self.CACHE.get_pdp_from_keystone_project(uuid), + "meta_rule_id": meta_rule_id, + "container_name": container_name, + "plugin_name": plugin_name + "container_id": "container_id" + } + + :return: + """ + self.__CONTAINERS[uuid4().hex] = { + "keystone_project_id": container_data['keystone_project_id'], + "name": container_data['name'], + "container_id": container_data['container_id'], + "hostname": container_data['name'], + "policy_id": container_data['policy_id'], + "meta_rule_id": container_data['meta_rule_id'], + "port": [ + { + "PublicPort": container_data['port']["PublicPort"], + "Type": container_data['port']["Type"], + "IP": container_data['port']["IP"], + "PrivatePort": container_data['port']["PrivatePort"] + } + ], + "genre": container_data['plugin_name'] + } + self.__update_container_chaining(self.get_keystone_project_id_from_policy_id(container_data['policy_id'])) + + @property + def containers(self): + """Containers cache + example of content : + { + "policy_uuid1": "component_hostname1", + "policy_uuid2": "component_hostname2", + } + :return: + """ + current_time = time.time() + if self.__CONTAINERS_UPDATE + self.__UPDATE_INTERVAL < current_time: + self.__update_container() + self.__CONTAINERS_UPDATE = current_time + return self.__CONTAINERS + + @property + def container_chaining(self): + """Cache for mapping Keystone Project ID with meta_rule ID and container ID + Example of content: + { + "keystone_project_id": [ + { + "container_id": "container_id", + "genre": "genre", + "policy_id": "policy_id", + "meta_rule_id": "meta_rule_id", + } + ] + } + + :return: + """ + current_time = time.time() + if self.__CONTAINER_CHAINING_UPDATE + self.__UPDATE_INTERVAL < current_time: + for key, value in self.pdp.items(): + self.__update_container_chaining(value["keystone_project_id"]) + self.__CONTAINER_CHAINING_UPDATE = current_time + LOG.info(self.__CONTAINER_CHAINING_UPDATE) + return self.__CONTAINER_CHAINING + + def __update_container_chaining(self, keystone_project_id): + container_ids = [] + for pdp_id, pdp_value, in self.__PDP.items(): + # LOG.info("pdp_id, pdp_value = {}, {}".format(pdp_id, pdp_value)) + # LOG.info("__POLICIES = {}".format(self.__POLICIES)) + if pdp_value: + if pdp_value["keystone_project_id"] == keystone_project_id: + for policy_id in pdp_value["security_pipeline"]: + model_id = self.__POLICIES[policy_id]['model_id'] + # LOG.info("model_id = {}".format(model_id)) + # LOG.info("CACHE = {}".format(self.__MODELS[model_id])) + # LOG.info("CACHE.containers = {}".format(self.__CONTAINERS)) + # LOG.info("CACHE.models = {}".format(self.__MODELS)) + for meta_rule_id in self.__MODELS[model_id]["meta_rules"]: + # LOG.info("meta_rule = {}".format(self.__MODELS[model_id]["meta_rules"])) + for container_id, container_value in self.get_containers_from_keystone_project_id( + keystone_project_id, + meta_rule_id + ): + # LOG.info("CONTAINER: {} {}".format(container_id, container_value)) + container_ids.append( + { + "container_id": self.__CONTAINERS[container_id]["container_id"], + "genre": self.__CONTAINERS[container_id]["genre"], + "policy_id": policy_id, + "meta_rule_id": meta_rule_id, + "hostname": self.__CONTAINERS[container_id]["hostname"], + "hostip": self.__CONTAINERS[container_id]["port"][0]["IP"], + "port": self.__CONTAINERS[container_id]["port"][0]["PublicPort"], + } + ) + # LOG.info("__update_container_chaining={}".format(container_ids)) + self.__CONTAINER_CHAINING[keystone_project_id] = container_ids + |