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 import json
  19 from rest_framework import status
  20 from requests.auth import HTTPBasicAuth
  21 from catalog.packages import const
  22 from catalog.pub.database.models import VnfPackageModel, VnfPkgSubscriptionModel, NsdmSubscriptionModel
  23 import catalog.pub.utils.timeutil
  24 from catalog.pub.utils.values import remove_none_key
  25 from catalog.pub.config import config as pub_config
  26 import traceback
  27 from django.db.models import Q
  28 from catalog.packages.serializers.vnf_pkg_notifications import PkgChangeNotificationSerializer, \
  29     PkgOnboardingNotificationSerializer
  30
  31 logger = logging.getLogger(__name__)
  32
  33
  34 class NotificationsUtil(object):
  35     def __init__(self, notification_type):
  36         self.notification_type = notification_type
  37         self.notifyserializer = None
  38
  39     def prepare_notification(self, **kwargs):
  40         pass
  41
  42     def send_notification(self):
  43         notification = self.prepare_notification()
  44
  45         subscriptions_filter = {v + "__contains": notification[k] for k, v in self.filter.items()}
  46         subscriptions_filter = remove_none_key(subscriptions_filter)
  47         logger.debug('send_notification subscriptions_filter = %s' % subscriptions_filter)
  48         q1 = Q()
  49         q1.connector = 'OR'
  50         for k, v in subscriptions_filter.items():
  51             q1.children.append((k, v))
  52
  53         subscriptions = self.SubscriptionModel.objects.filter(q1)
  54         if not subscriptions.exists():
  55             logger.info("No subscriptions created for the filter %s" % notification)
  56             return
  57         logger.info("Start sending notifications")
  58         for sub in subscriptions:
  59             # set subscription id
  60             notification["subscriptionId"] = sub.get_subscription_id()
  61             notification['_links']['subscription'] = {
  62                 'href': 'http://%s:%s/%s%s' % (pub_config.MSB_SERVICE_IP,
  63                                                pub_config.MSB_SERVICE_PORT,
  64                                                self.subscription_root_uri,
  65                                                notification["subscriptionId"])
  66             }
  67             callbackuri = sub.callback_uri
  68             """
  69             auth_info = json.loads(sub.auth_info)
  70             if auth_info["authType"] == const.OAUTH2_CLIENT_CREDENTIALS:
  71                 pass
  72             """
  73             if self.notifyserializer:
  74                 serialized_data = self.notifyserializer(data=notification)
  75                 if not serialized_data.is_valid():
  76                     logger.error('Notification Data is invalid:%s.' % serialized_data.errors)
  77
  78             if sub.auth_info:
  79                 self.post_notification(callbackuri, notification, auth_info=json.loads(sub.auth_info))
  80             else:
  81                 self.post_notification(callbackuri, notification)
  82
  83     def post_notification(self, callbackuri, notification, auth_info=None):
  84         try:
  85             if auth_info:
  86                 if const.BASIC in auth_info.get("authType", ''):
  87                     params = auth_info.get("paramsBasic", {})
  88                     username = params.get("userName")
  89                     password = params.get("password")
  90                     resp = requests.post(callbackuri,
  91                                          data=notification,
  92                                          headers={'Connection': 'close',
  93                                                   'content-type': 'application/json',
  94                                                   'accept': 'application/json'},
  95                                          auth=HTTPBasicAuth(username, password),
  96                                          verify=False)
  97                 elif const.OAUTH2_CLIENT_CREDENTIALS in auth_info.get("authType", ''):
  98                     # todo
  99                     pass
 100                 else:
 101                     # todo
 102                     pass
 103             else:
 104                 resp = requests.post(callbackuri,
 105                                      data=notification,
 106                                      headers={'Connection': 'close',
 107                                               'content-type': 'application/json',
 108                                               'accept': 'application/json'},
 109                                      verify=False)
 110
 111             if resp.status_code == status.HTTP_204_NO_CONTENT:
 112                 logger.error("Sending notification to %s failed: %s" % (callbackuri, resp))
 113             else:
 114                 logger.info("Sending notification to %s successfully.", callbackuri)
 115         except:
 116             logger.error("Post notification failed.")
 117             logger.error(traceback.format_exc())
 118
 119
 120 class PkgNotifications(NotificationsUtil):
 121     def __init__(self, notification_type, vnf_pkg_id, change_type=None, operational_state=None):
 122         super(PkgNotifications, self).__init__(notification_type)
 123         self.filter = {
 124             'vnfdId': 'vnfd_id',
 125             'vnfPkgId': 'vnf_pkg_id'
 126         }
 127         self.vnf_pkg_id = vnf_pkg_id
 128         self.change_type = change_type
 129         self.operational_state = operational_state
 130         self.SubscriptionModel = VnfPkgSubscriptionModel
 131         self.subscription_root_uri = const.VNFPKG_SUBSCRIPTION_ROOT_URI
 132         if self.notification_type == "VnfPackageChangeNotification":
 133             self.notifyserializer = PkgChangeNotificationSerializer
 134         else:
 135             self.notifyserializer = PkgOnboardingNotificationSerializer
 136
 137     def prepare_notification(self):
 138         logger.info('Start to prepare Pkgnotification')
 139
 140         vnf_pkg = VnfPackageModel.objects.filter(vnfPackageId=self.vnf_pkg_id)
 141         vnfd_id = None
 142         if vnf_pkg:
 143             vnfd_id = vnf_pkg[0].vnfdId
 144         notification_content = {
 145             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 146             'notificationType': self.notification_type,
 147             # set 'subscriptionId' after filtering for subscribers
 148             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 149             'vnfPkgId': self.vnf_pkg_id,
 150             'vnfdId': vnfd_id,
 151             '_links': {
 152                 'vnfPackage': {
 153                     'href': 'http://%s:%s/%s/vnf_packages/%s' % (pub_config.MSB_SERVICE_IP,
 154                                                                  pub_config.MSB_SERVICE_PORT,
 155                                                                  const.PKG_URL_PREFIX,
 156                                                                  self.vnf_pkg_id)
 157                 }
 158             }
 159         }
 160
 161         if self.notification_type == "VnfPackageChangeNotification":
 162             notification_content['changeType'] = self.change_type
 163             notification_content['operationalState'] = self.operational_state
 164
 165         return notification_content
 166
 167
 168 class NsdNotifications(NotificationsUtil):
 169     def __init__(self, notification_type, nsd_info_id, nsd_id, failure_details=None, operational_state=None):
 170         super(NsdNotifications, self).__init__(notification_type)
 171         self.filter = {
 172             'nsdInfoId': 'nsdInfoId',
 173             'nsdId': 'nsdId',
 174         }
 175         self.SubscriptionModel = NsdmSubscriptionModel
 176         self.subscription_root_uri = const.NSDM_SUBSCRIPTION_ROOT_URI
 177         self.nsd_info_id = nsd_info_id
 178         self.nsd_id = nsd_id
 179         self.failure_details = failure_details
 180         self.operational_state = operational_state
 181         # todo:
 182         # if self.notification_type == "VnfPackageChangeNotification":
 183         #     self.notifyserializer = PkgChangeNotificationSerializer
 184         # else:
 185         #     self.notifyserializer = PkgOnboardingNotificationSerializer
 186
 187     def prepare_notification(self):
 188         logger.info('Start to prepare Nsdnotification')
 189
 190         notification_content = {
 191             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 192             'notificationType': self.notification_type,
 193             # set 'subscriptionId' after filtering for subscribers
 194             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 195             'nsdInfoId': self.nsd_info_id,
 196             'nsdId': self.nsd_id,
 197             '_links': {
 198                 'nsdInfo': {
 199                     'href': 'http://%s:%s/%s/ns_descriptors/%s' % (pub_config.MSB_SERVICE_IP,
 200                                                                    pub_config.MSB_SERVICE_PORT,
 201                                                                    const.NSD_URL_PREFIX,
 202                                                                    self.nsd_info_id)
 203                 }
 204             }
 205         }
 206         if self.notification_type == "NsdOnboardingFailureNotification":
 207             notification_content['onboardingFailureDetails'] = self.failure_details
 208         if self.notification_type == "NsdChangeNotification":
 209             notification_content['nsdOperationalState'] = self.operational_state
 210         return notification_content
 211
 212
 213 class PnfNotifications(NotificationsUtil):
 214     def __init__(self, notification_type, pnfd_info_id, pnfd_id, failure_details=None):
 215         super(PnfNotifications, self).__init__(notification_type)
 216         self.filter = {
 217             'pnfdId': 'pnfdId',
 218             'pnfdInfoIds': 'pnfdInfoIds',
 219         }
 220         self.SubscriptionModel = NsdmSubscriptionModel
 221         self.subscription_root_uri = const.NSDM_SUBSCRIPTION_ROOT_URI
 222         self.pnfd_info_id = pnfd_info_id
 223         self.pnfd_id = pnfd_id
 224         self.failure_details = failure_details
 225         # todo
 226         # if self.notification_type == "VnfPackageChangeNotification":
 227         #     self.notifyserializer = PkgChangeNotificationSerializer
 228         # else:
 229         #     self.notifyserializer = PkgOnboardingNotificationSerializer
 230
 231     def prepare_notification(self, *args, **kwargs):
 232         logger.info('Start to prepare Pnfnotification')
 233         notification_content = {
 234             'id': str(uuid.uuid4()),  # shall be the same if sent multiple times due to multiple subscriptions.
 235             'notificationType': self.notification_type,
 236             # set 'subscriptionId' after filtering for subscribers
 237             'timeStamp': catalog.pub.utils.timeutil.now_time(),
 238             'pnfdInfoIds': self.pnfd_info_id,
 239             'pnfdId': self.pnfd_id,
 240             '_links': {
 241                 'pnfdInfo': {
 242                     'href': 'http://%s:%s/%s/pnf_descriptors/%s' % (pub_config.MSB_SERVICE_IP,
 243                                                                     pub_config.MSB_SERVICE_PORT,
 244                                                                     const.NSD_URL_PREFIX,
 245                                                                     self.pnfd_info_id)
 246                 }
 247             }
 248         }
 249         if self.notification_type == "PnfdOnboardingFailureNotification":
 250             notification_content['onboardingFailureDetails'] = self.failure_details
 251         return notification_content