catalog/packages/biz/notificationsutil.py

   1 # Copyright 2019 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import logging
  16 import uuid
  17 import requests
  18 from rest_framework import status
  19 from catalog.packages import const
  20 from catalog.pub.database.models import VnfPackageModel, VnfPkgSubscriptionModel, NsdmSubscriptionModel
  21 import catalog.pub.utils.timeutil
  22 from catalog.pub.utils.values import remove_none_key
  23 from catalog.pub.config import config as pub_config
  24 import traceback
  25 from django.db.models import Q
  26 from catalog.packages.serializers.vnf_pkg_notifications import PkgChangeNotificationSerializer, \
  27     PkgOnboardingNotificationSerializer
  28
  29 logger = logging.getLogger(__name__)
  30
  31
  32 class NotificationsUtil(object):
  33     def __init__(self, notification_type):
  34         self.notification_type = notification_type
  35         self.notifyserializer = None
  36
  37     def prepare_notification(self, **kwargs):
  38         pass
  39
  40     def send_notification(self):
  41         notification = self.prepare_notification()
  42
  43         subscriptions_filter = {v + "__contains": notification[k] for k, v in self.filter.items()}
  44         subscriptions_filter = remove_none_key(subscriptions_filter)
  45         logger.debug('send_notification subscriptions_filter = %s' % subscriptions_filter)
  46         q1 = Q()
  47         q1.connector = 'OR'
  48         for k, v in subscriptions_filter.items():
  49             q1.children.append((k, v))
  50
  51         subscriptions = self.SubscriptionModel.objects.filter(q1)
  52         if not subscriptions.exists():
  53             logger.info("No subscriptions created for the filter %s" % notification)
  54             return
  55         logger.info("Start sending notifications")
  56         for sub in subscriptions:
  57             # set subscription id
  58             notification["subscriptionId"] = sub.get_subscription_id()
  59             notification['_links']['subscription'] = {
  60                 'href': 'http://%s:%s/%s%s' % (pub_config.MSB_SERVICE_IP,
  61                                                pub_config.MSB_SERVICE_PORT,
  62                                                self.subscription_root_uri,
  63                                                notification["subscriptionId"])
  64             }
  65             callbackuri = sub.callback_uri
  66             """
  67             auth_info = json.loads(sub.auth_info)
  68             if auth_info["authType"] == const.OAUTH2_CLIENT_CREDENTIALS:
  69                 pass
  70             """
  71             if self.notifyserializer:
  72                 serialized_data = self.notifyserializer(data=notification)
  73                 if not serialized_data.is_valid():
  74                     logger.error('Notification Data is invalid:%s.' % serialized_data.errors)
  75             self.post_notification(callbackuri, notification)
  76
  77     def post_notification(self, callbackuri, notification):
  78         """
  79         params = auth_info.get("paramsBasic", {})
  80         username, password = params.get("userName"), params.get("password")
  81         logger.info("Sending notification to %s, %s", callbackuri, params)
  82         resp = None
  83         if username:
  84             resp = requests.post(callbackuri,
  85                                  data=notification,
  86                                  auth=HTTPBasicAuth(username, password))
  87         else:
  88         """
  89
  90         try:
  91             resp = requests.post(callbackuri, data=notification, headers={'Connection': 'close'})
  92             if resp.status_code != status.HTTP_204_NO_CONTENT:
  93                 logger.error("Sending notification to %s failed: %s" % (callbackuri, resp.text))
  94             else:
  95                 logger.info("Sending notification to %s successfully.", callbackuri)
  96         except:
  97             logger.error("Post notification failed.")
  98             logger.error(traceback.format_exc())
  99
 100
 101 class PkgNotifications(NotificationsUtil):
 102     def __init__(self, notification_type, vnf_pkg_id, change_type=None, operational_state=None):
 103         super(PkgNotifications, self).__init__(notification_type)
 104         self.filter = {
 105             'vnfdId': 'vnfd_id',
 106             'vnfPkgId': 'vnf_pkg_id'
 107         }
 108         self.vnf_pkg_id = vnf_pkg_id
 109         self.change_type = change_type
 110         self.operational_state = operational_state
 111         self.SubscriptionModel = VnfPkgSubscriptionModel
 112         self.subscription_root_uri = const.VNFPKG_SUBSCRIPTION_ROOT_URI
 113         if self.notification_type == "VnfPackageChangeNotification":
 114             self.notifyserializer = PkgChangeNotificationSerializer
 115         else:
 116             self.notifyserializer = PkgOnboardingNotificationSerializer
 117
 118     def prepare_notification(self):
 119         logger.info('Start to prepare Pkgnotification')
 120
 121         vnf_pkg = VnfPackageModel.objects.filter(vnfPackageId=self.vnf_pkg_id)
 122         vnfd_id = None
 123         if vnf_pkg:
 124             vnfd_id = vnf_pkg[0].vnfdId
 125         notification_content = {
 126             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 127             'notificationType': self.notification_type,
 128             # set 'subscriptionId' after filtering for subscribers
 129             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 130             'vnfPkgId': self.vnf_pkg_id,
 131             'vnfdId': vnfd_id,
 132             '_links': {
 133                 'vnfPackage': {
 134                     'href': 'http://%s:%s/%s/vnf_packages/%s' % (pub_config.MSB_SERVICE_IP,
 135                                                                  pub_config.MSB_SERVICE_PORT,
 136                                                                  const.PKG_URL_PREFIX,
 137                                                                  self.vnf_pkg_id)
 138                 }
 139             }
 140         }
 141
 142         if self.notification_type == "VnfPackageChangeNotification":
 143             notification_content['changeType'] = self.change_type
 144             notification_content['operationalState'] = self.operational_state
 145
 146         return notification_content
 147
 148
 149 class NsdNotifications(NotificationsUtil):
 150     def __init__(self, notification_type, nsd_info_id, nsd_id, failure_details=None, operational_state=None):
 151         super(NsdNotifications, self).__init__(notification_type)
 152         self.filter = {
 153             'nsdInfoId': 'nsdInfoId',
 154             'nsdId': 'nsdId',
 155         }
 156         self.SubscriptionModel = NsdmSubscriptionModel
 157         self.subscription_root_uri = const.NSDM_SUBSCRIPTION_ROOT_URI
 158         self.nsd_info_id = nsd_info_id
 159         self.nsd_id = nsd_id
 160         self.failure_details = failure_details
 161         self.operational_state = operational_state
 162         # todo:
 163         # if self.notification_type == "VnfPackageChangeNotification":
 164         #     self.notifyserializer = PkgChangeNotificationSerializer
 165         # else:
 166         #     self.notifyserializer = PkgOnboardingNotificationSerializer
 167
 168     def prepare_notification(self):
 169         logger.info('Start to prepare Nsdnotification')
 170
 171         notification_content = {
 172             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 173             'notificationType': self.notification_type,
 174             # set 'subscriptionId' after filtering for subscribers
 175             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 176             'nsdInfoId': self.nsd_info_id,
 177             'nsdId': self.nsd_id,
 178             '_links': {
 179                 'nsdInfo': {
 180                     'href': 'http://%s:%s/%s/ns_descriptors/%s' % (pub_config.MSB_SERVICE_IP,
 181                                                                    pub_config.MSB_SERVICE_PORT,
 182                                                                    const.NSD_URL_PREFIX,
 183                                                                    self.nsd_info_id)
 184                 }
 185             }
 186         }
 187         if self.notification_type == "NsdOnboardingFailureNotification":
 188             notification_content['onboardingFailureDetails'] = self.failure_details
 189         if self.notification_type == "NsdChangeNotification":
 190             notification_content['nsdOperationalState'] = self.operational_state
 191         return notification_content
 192
 193
 194 class PnfNotifications(NotificationsUtil):
 195     def __init__(self, notification_type, pnfd_info_id, pnfd_id, failure_details=None):
 196         super(PnfNotifications, self).__init__(notification_type)
 197         self.filter = {
 198             'pnfdId': 'pnfdId',
 199             'pnfdInfoIds': 'pnfdInfoIds',
 200         }
 201         self.SubscriptionModel = NsdmSubscriptionModel
 202         self.subscription_root_uri = const.NSDM_SUBSCRIPTION_ROOT_URI
 203         self.pnfd_info_id = pnfd_info_id
 204         self.pnfd_id = pnfd_id
 205         self.failure_details = failure_details
 206         # todo
 207         # if self.notification_type == "VnfPackageChangeNotification":
 208         #     self.notifyserializer = PkgChangeNotificationSerializer
 209         # else:
 210         #     self.notifyserializer = PkgOnboardingNotificationSerializer
 211
 212     def prepare_notification(self, *args, **kwargs):
 213         logger.info('Start to prepare Pnfnotification')
 214         notification_content = {
 215             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 216             'notificationType': self.notification_type,
 217             # set 'subscriptionId' after filtering for subscribers
 218             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 219             'pnfdInfoIds': self.pnfd_info_id,
 220             'pnfdId': self.pnfd_id,
 221             '_links': {
 222                 'pnfdInfo': {
 223                     'href': 'http://%s:%s/%s/pnf_descriptors/%s' % (pub_config.MSB_SERVICE_IP,
 224                                                                     pub_config.MSB_SERVICE_PORT,
 225                                                                     const.NSD_URL_PREFIX,
 226                                                                     self.pnfd_info_id)
 227                 }
 228             }
 229         }
 230         if self.notification_type == "PnfdOnboardingFailureNotification":
 231             notification_content['onboardingFailureDetails'] = self.failure_details
 232         return notification_content