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# 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'.
from uuid import uuid4
import logging
from python_moonutilities import exceptions
from python_moonutilities.security_functions import filter_input, enforce
from python_moondb.api.managers import Managers
logger = logging.getLogger("moon.db.api.model")
class ModelManager(Managers):
def __init__(self, connector=None):
self.driver = connector.driver
Managers.ModelManager = self
@enforce(("read", "write"), "models")
def update_model(self, user_id, model_id, value):
if model_id not in self.driver.get_models(model_id=model_id):
raise exceptions.ModelUnknown
if value and 'meta_rules' in value:
for meta_rule_id in value['meta_rules']:
if not self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
raise exceptions.MetaRuleUnknown
return self.driver.update_model(model_id=model_id, value=value)
@enforce(("read", "write"), "models")
def delete_model(self, user_id, model_id):
if model_id not in self.driver.get_models(model_id=model_id):
raise exceptions.ModelUnknown
# TODO (asteroide): check that no policy is connected to this model
policies = Managers.PolicyManager.get_policies(user_id=user_id)
for policy in policies:
if policies[policy]['model_id'] == model_id:
raise exceptions.DeleteModelWithPolicy
return self.driver.delete_model(model_id=model_id)
@enforce(("read", "write"), "models")
def add_model(self, user_id, model_id=None, value=None):
if model_id in self.driver.get_models(model_id=model_id):
raise exceptions.ModelExisting
if not model_id:
model_id = uuid4().hex
if value and 'meta_rules' in value:
for meta_rule_id in value['meta_rules']:
if not self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
raise exceptions.MetaRuleUnknown
return self.driver.add_model(model_id=model_id, value=value)
@enforce("read", "models")
def get_models(self, user_id, model_id=None):
return self.driver.get_models(model_id=model_id)
@enforce(("read", "write"), "meta_rules")
def set_meta_rule(self, user_id, meta_rule_id, value):
if meta_rule_id not in self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
raise exceptions.MetaRuleUnknown
if value:
if 'subject_categories' in value:
for subject_category_id in value['subject_categories']:
if not self.driver.get_subject_categories(category_id=subject_category_id):
raise exceptions.SubjectCategoryUnknown
if 'object_categories' in value:
for object_category_id in value['object_categories']:
if not self.driver.get_object_categories(category_id=object_category_id):
raise exceptions.ObjectCategoryUnknown
if 'action_categories' in value:
for action_category_id in value['action_categories']:
if not self.driver.get_action_categories(category_id=action_category_id):
raise exceptions.ActionCategoryUnknown
return self.driver.set_meta_rule(meta_rule_id=meta_rule_id, value=value)
@enforce("read", "meta_rules")
def get_meta_rules(self, user_id, meta_rule_id=None):
return self.driver.get_meta_rules(meta_rule_id=meta_rule_id)
@enforce(("read", "write"), "meta_rules")
def add_meta_rule(self, user_id, meta_rule_id=None, value=None):
if meta_rule_id in self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
raise exceptions.MetaRuleExisting
if value:
if 'subject_categories' in value:
for subject_category_id in value['subject_categories']:
if not self.driver.get_subject_categories(category_id=subject_category_id):
raise exceptions.SubjectCategoryUnknown
if 'object_categories' in value:
for object_category_id in value['object_categories']:
if not self.driver.get_object_categories(category_id=object_category_id):
raise exceptions.ObjectCategoryUnknown
if 'action_categories' in value:
for action_category_id in value['action_categories']:
if not self.driver.get_action_categories(category_id=action_category_id):
raise exceptions.ActionCategoryUnknown
return self.driver.set_meta_rule(meta_rule_id=meta_rule_id, value=value)
@enforce(("read", "write"), "meta_rules")
def delete_meta_rule(self, user_id, meta_rule_id=None):
if meta_rule_id not in self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
raise exceptions.MetaRuleUnknown
# TODO (asteroide): check and/or delete data and assignments and rules linked to that meta_rule
models = self.get_models(user_id=user_id)
for model_id in models:
if models[model_id]['meta_rules'] == meta_rule_id:
raise exceptions.DeleteMetaRuleWithModel
return self.driver.delete_meta_rule(meta_rule_id=meta_rule_id)
@enforce("read", "meta_data")
def get_subject_categories(self, user_id, category_id=None):
return self.driver.get_subject_categories(category_id=category_id)
@enforce(("read", "write"), "meta_data")
def add_subject_category(self, user_id, category_id=None, value=None):
if category_id in self.driver.get_subject_categories(category_id=category_id):
raise exceptions.SubjectCategoryExisting
return self.driver.add_subject_category(name=value["name"], description=value["description"], uuid=category_id)
@enforce(("read", "write"), "meta_data")
def delete_subject_category(self, user_id, category_id):
# TODO (asteroide): delete all data linked to that category
# TODO (asteroide): delete all meta_rules linked to that category
if category_id not in self.driver.get_subject_categories(category_id=category_id):
raise exceptions.SubjectCategoryUnknown
meta_rules = self.get_meta_rules(user_id=user_id)
for meta_rule_id in meta_rules:
for subject_category_id in meta_rules[meta_rule_id]['subject_categories']:
logger.info("delete_subject_category {} {}".format(subject_category_id, meta_rule_id))
logger.info("delete_subject_category {}".format(meta_rules[meta_rule_id]))
if subject_category_id == category_id:
self.delete_meta_rule(user_id, meta_rule_id)
# raise exceptions.DeleteCategoryWithMetaRule
if self.driver.is_subject_data_exist(category_id=category_id):
raise exceptions.DeleteCategoryWithData
return self.driver.delete_subject_category(category_id=category_id)
@enforce("read", "meta_data")
def get_object_categories(self, user_id, category_id=None):
return self.driver.get_object_categories(category_id)
@enforce(("read", "write"), "meta_data")
def add_object_category(self, user_id, category_id=None, value=None):
if category_id in self.driver.get_object_categories(category_id=category_id):
raise exceptions.ObjectCategoryExisting
return self.driver.add_object_category(name=value["name"], description=value["description"], uuid=category_id)
@enforce(("read", "write"), "meta_data")
def delete_object_category(self, user_id, category_id):
# TODO (asteroide): delete all data linked to that category
# TODO (asteroide): delete all meta_rules linked to that category
if category_id not in self.driver.get_object_categories(category_id=category_id):
raise exceptions.ObjectCategoryUnknown
meta_rules = self.get_meta_rules(user_id=user_id)
for meta_rule_id in meta_rules:
for object_category_id in meta_rules[meta_rule_id]['object_categories']:
if object_category_id == category_id:
self.delete_meta_rule(user_id, meta_rule_id)
if self.driver.is_object_data_exist(category_id=category_id):
raise exceptions.DeleteCategoryWithData
return self.driver.delete_object_category(category_id=category_id)
@enforce("read", "meta_data")
def get_action_categories(self, user_id, category_id=None):
return self.driver.get_action_categories(category_id=category_id)
@enforce(("read", "write"), "meta_data")
def add_action_category(self, user_id, category_id=None, value=None):
if category_id in self.driver.get_action_categories(category_id=category_id):
raise exceptions.ActionCategoryExisting
return self.driver.add_action_category(name=value["name"], description=value["description"], uuid=category_id)
@enforce(("read", "write"), "meta_data")
def delete_action_category(self, user_id, category_id):
# TODO (asteroide): delete all data linked to that category
# TODO (asteroide): delete all meta_rules linked to that category
if category_id not in self.driver.get_action_categories(category_id=category_id):
raise exceptions.ActionCategoryUnknown
meta_rules = self.get_meta_rules(user_id=user_id)
for meta_rule_id in meta_rules:
for action_category_id in meta_rules[meta_rule_id]['action_categories']:
if action_category_id == category_id:
self.delete_meta_rule(user_id, meta_rule_id)
if self.driver.is_action_data_exist(category_id=category_id):
raise exceptions.DeleteCategoryWithData
return self.driver.delete_action_category(category_id=category_id)
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