--- /dev/null
+# Copyright (C) 2019 Verizon. All Rights Reserved
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import ast
+import json
+import logging
+import os
+import requests
+import uuid
+
+from collections import Counter
+from rest_framework import status
+
+from catalog.packages import const
+from catalog.pub.database.models import VnfPkgSubscriptionModel
+from catalog.pub.exceptions import VnfPkgSubscriptionException,\
+ VnfPkgDuplicateSubscriptionException, SubscriptionDoesNotExistsException
+from catalog.pub.utils.values import ignore_case_get
+
+
+logger = logging.getLogger(__name__)
+
+ROOT_FILTERS = {
+ "notificationTypes": "notification_types",
+ "vnfdId": "vnfd_id",
+ "vnfPkgId": "vnf_pkg_id",
+ "operationalState": "operation_states",
+ "usageState": "usage_states"
+}
+
+
+def is_filter_type_equal(new_filter, existing_filter):
+ return Counter(new_filter) == Counter(existing_filter)
+
+
+class CreateSubscription(object):
+
+ def __init__(self, data):
+ self.data = data
+ self.filter = ignore_case_get(self.data, "filters", {})
+ self.callback_uri = ignore_case_get(self.data, "callbackUri")
+ self.authentication = ignore_case_get(self.data, "authentication", {})
+ self.notification_types = ignore_case_get(self.filter, "notificationTypes", [])
+ self.operation_states = ignore_case_get(self.filter, "operationalState", [])
+ self.usage_states = ignore_case_get(self.filter, "usageState", [])
+ self.vnfd_id = ignore_case_get(self.filter, "vnfdId", [])
+ self.vnf_pkg_id = ignore_case_get(self.filter, "vnfPkgId", [])
+ self.vnf_products_from_provider = \
+ ignore_case_get(self.filter, "vnfProductsFromProviders", {})
+
+ def check_callbackuri_connection(self):
+ logger.debug("SubscribeNotification-post::> Sending GET request "
+ "to %s" % self.callback_uri)
+ try:
+ response = requests.get(self.callback_uri, timeout=2)
+ if response.status_code != status.HTTP_204_NO_CONTENT:
+ raise VnfPkgSubscriptionException(
+ "callbackUri %s returns %s status code." % (
+ self.callback_uri,
+ response.status_code
+ )
+ )
+ except Exception:
+ raise VnfPkgSubscriptionException(
+ "callbackUri %s didn't return 204 status code." % self.callback_uri
+ )
+
+ def do_biz(self):
+ self.subscription_id = str(uuid.uuid4())
+ self.check_callbackuri_connection()
+ self.check_valid_auth_info()
+ self.check_valid()
+ self.save_db()
+ subscription = VnfPkgSubscriptionModel.objects.get(
+ subscription_id=self.subscription_id
+ )
+ if subscription:
+ return subscription.toDict()
+
+ def check_valid_auth_info(self):
+ logger.debug("SubscribeNotification--post::> Validating Auth "
+ "details if provided")
+ if self.authentication.get("paramsBasic", {}) and \
+ const.BASIC not in self.authentication.get("authType"):
+ raise VnfPkgSubscriptionException('Auth type should be ' + const.BASIC)
+ if self.authentication.get("paramsOauth2ClientCredentials", {}) and \
+ const.OAUTH2_CLIENT_CREDENTIALS not in self.authentication.get("authType"):
+ raise VnfPkgSubscriptionException('Auth type should be ' + const.OAUTH2_CLIENT_CREDENTIALS)
+
+ def check_filter_exists(self, sub):
+ # Check the usage states, operationStates
+ for filter_type in ["operation_states", "usage_states"]:
+ if not is_filter_type_equal(getattr(self, filter_type),
+ ast.literal_eval(getattr(sub, filter_type))):
+ return False
+ # If all the above types are same then check id filters
+ for id_filter in ["vnfd_id", "vnf_pkg_id"]:
+ if not is_filter_type_equal(getattr(self, id_filter),
+ ast.literal_eval(getattr(sub, id_filter))):
+ return False
+ return True
+
+ def check_valid(self):
+ logger.debug("SubscribeNotification--post::> Checking DB if "
+ "callbackUri already exists")
+ subscriptions = VnfPkgSubscriptionModel.objects.filter(callback_uri=self.callback_uri)
+ if not subscriptions.exists():
+ return True
+ for subscription in subscriptions:
+ if self.check_filter_exists(subscription):
+ raise VnfPkgDuplicateSubscriptionException(
+ "Already Subscription (%s) exists with the "
+ "same callbackUri and filter" % subscription.subscription_id)
+ return True
+
+ def save_db(self):
+ logger.debug("SubscribeNotification--post::> Saving the subscription "
+ "%s to the database" % self.subscription_id)
+ links = {
+ "self": {
+ "href": os.path.join(const.VNFPKG_SUBSCRIPTION_ROOT_URI, self.subscription_id)
+ }
+ }
+ VnfPkgSubscriptionModel.objects.create(
+ subscription_id=self.subscription_id,
+ callback_uri=self.callback_uri,
+ notification_types=json.dumps(self.notification_types),
+ auth_info=json.dumps(self.authentication),
+ usage_states=json.dumps(self.usage_states),
+ operation_states=json.dumps(self.operation_states),
+ vnf_products_from_provider=json.dumps(self.vnf_products_from_provider),
+ vnfd_id=json.dumps(self.vnfd_id),
+ vnf_pkg_id=json.dumps(self.vnf_pkg_id),
+ links=json.dumps(links))
+ logger.debug('Create Subscription[%s] success', self.subscription_id)
+
+
+class QuerySubscription(object):
+
+ def query_multi_subscriptions(self, params):
+ query_data = {}
+ logger.debug("QuerySubscription--get--multi--subscriptions--biz::> Check "
+ "for filters in query params %s" % params)
+ for query, value in list(params.items()):
+ if query in ROOT_FILTERS:
+ query_data[ROOT_FILTERS[query] + '__icontains'] = value
+ # Query the database with filters if the request has fields in request params, else fetch all records
+ if query_data:
+ subscriptions = VnfPkgSubscriptionModel.objects.filter(**query_data)
+ else:
+ subscriptions = VnfPkgSubscriptionModel.objects.all()
+ if not subscriptions.exists():
+ return []
+ return [subscription.toDict() for subscription in subscriptions]
+
+ def query_single_subscription(self, subscription_id):
+ logger.debug("QuerySingleSubscriptions--get--single--subscription--biz::> "
+ "ID: %s" % subscription_id)
+
+ subscription = VnfPkgSubscriptionModel.objects.filter(
+ subscription_id=subscription_id)
+ if not subscription.exists():
+ raise SubscriptionDoesNotExistsException("Subscription with ID: %s "
+ "does not exists" % subscription_id)
+ return subscription[0].toDict()
+
+
+class TerminateSubscription(object):
+
+ def terminate(self, subscription_id):
+ logger.debug("TerminateSubscriptions--delete--biz::> "
+ "ID: %s" % subscription_id)
+
+ subscription = VnfPkgSubscriptionModel.objects.filter(
+ subscription_id=subscription_id)
+ if not subscription.exists():
+ raise SubscriptionDoesNotExistsException("Subscription with ID: %s "
+ "does not exists" % subscription_id)
+ subscription[0].delete()
Code Review / modeling / etsicatalog.git / blobdiff