| 1 |
|
# Copyright 2020 Preethika P(Tata Elxsi) |
| 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 |
| 12 |
|
# implied. |
| 13 |
|
# See the License for the specific language governing permissions and |
| 14 |
|
# limitations under the License. |
| 15 |
|
|
| 16 |
1 |
__author__ = "Preethika P,preethika.p@tataelxsi.co.in" |
| 17 |
|
|
| 18 |
1 |
import requests |
| 19 |
1 |
from osm_nbi.base_topic import BaseTopic, EngineException |
| 20 |
1 |
from osm_nbi.validation import subscription |
| 21 |
1 |
from http import HTTPStatus |
| 22 |
|
|
| 23 |
|
|
| 24 |
1 |
class CommonSubscriptions(BaseTopic): |
| 25 |
1 |
topic = "subscriptions" |
| 26 |
1 |
topic_msg = None |
| 27 |
|
|
| 28 |
1 |
def format_subscription(self, subs_data): |
| 29 |
|
""" |
| 30 |
|
Brings lexicographical order for list items at any nested level. For subscriptions max level of nesting is 4. |
| 31 |
|
:param subs_data: Subscription data to be ordered. |
| 32 |
|
:return: None |
| 33 |
|
""" |
| 34 |
0 |
if isinstance(subs_data, dict): |
| 35 |
0 |
for key in subs_data.keys(): |
| 36 |
|
# Base case |
| 37 |
0 |
if isinstance(subs_data[key], list): |
| 38 |
0 |
subs_data[key].sort() |
| 39 |
0 |
return |
| 40 |
|
# Recursive case |
| 41 |
0 |
self.format_subscription(subs_data[key]) |
| 42 |
0 |
return |
| 43 |
|
|
| 44 |
1 |
def check_conflict_on_new(self, session, content): |
| 45 |
|
""" |
| 46 |
|
Two subscriptions are equal if Auth username, CallbackUri and filter are same. |
| 47 |
|
:param session: Session object. |
| 48 |
|
:param content: Subscription data. |
| 49 |
|
:return: None if no conflict otherwise, raises an exception. |
| 50 |
|
""" |
| 51 |
|
# Get all subscriptions from db table subscriptions and compare. |
| 52 |
0 |
self.format_subscription(content) |
| 53 |
0 |
filter_dict = {"CallbackUri": content["CallbackUri"]} |
| 54 |
0 |
if content.get("authentication"): |
| 55 |
0 |
if content["authentication"].get("authType") == "basic": |
| 56 |
0 |
filter_dict["authentication.authType"] = "basic" |
| 57 |
|
# elif add other authTypes here |
| 58 |
|
else: |
| 59 |
0 |
filter_dict["authentication"] = None # For Items without authentication |
| 60 |
0 |
existing_subscriptions = self.db.get_list("subscriptions", q_filter=filter_dict) |
| 61 |
0 |
new_sub_pwd = None |
| 62 |
0 |
if content.get("authentication") and content["authentication"].get("authType") == "basic": |
| 63 |
0 |
new_sub_pwd = content["authentication"]["paramsBasic"]["password"] |
| 64 |
0 |
content["authentication"]["paramsBasic"].pop("password", None) |
| 65 |
0 |
for existing_subscription in existing_subscriptions: |
| 66 |
0 |
sub_id = existing_subscription.pop("_id", None) |
| 67 |
0 |
existing_subscription.pop("_admin", None) |
| 68 |
0 |
existing_subscription.pop("schema_version", None) |
| 69 |
0 |
if existing_subscription.get("authentication") and \ |
| 70 |
|
existing_subscription["authentication"].get("authType") == "basic": |
| 71 |
0 |
existing_subscription["authentication"]["paramsBasic"].pop("password", None) |
| 72 |
|
# self.logger.debug(existing_subscription) |
| 73 |
0 |
if existing_subscription == content: |
| 74 |
0 |
raise EngineException("Subscription already exists with id: {}".format(sub_id), |
| 75 |
|
HTTPStatus.CONFLICT) |
| 76 |
0 |
if new_sub_pwd: |
| 77 |
0 |
content["authentication"]["paramsBasic"]["password"] = new_sub_pwd |
| 78 |
0 |
return |
| 79 |
|
|
| 80 |
1 |
def format_on_new(self, content, project_id=None, make_public=False): |
| 81 |
0 |
super().format_on_new(content, project_id=project_id, make_public=make_public) |
| 82 |
|
|
| 83 |
|
# TODO check how to release Engine.write_lock during the check |
| 84 |
0 |
def _check_endpoint(url, auth): |
| 85 |
|
""" |
| 86 |
|
Checks if the notification endpoint is valid |
| 87 |
|
:param url: the notification end |
| 88 |
|
:param auth: contains the authentication details with type basic |
| 89 |
|
""" |
| 90 |
0 |
try: |
| 91 |
0 |
if auth is None: |
| 92 |
0 |
response = requests.get(url, timeout=5) |
| 93 |
0 |
if response.status_code != HTTPStatus.NO_CONTENT: |
| 94 |
0 |
raise EngineException("Cannot access to the notification URL '{}',received {}: {}" |
| 95 |
|
.format(url, response.status_code, response.content)) |
| 96 |
0 |
elif auth["authType"] == "basic": |
| 97 |
0 |
username = auth["paramsBasic"].get("userName") |
| 98 |
0 |
password = auth["paramsBasic"].get("password") |
| 99 |
0 |
response = requests.get(url, auth=(username, password), timeout=5) |
| 100 |
0 |
if response.status_code != HTTPStatus.NO_CONTENT: |
| 101 |
0 |
raise EngineException("Cannot access to the notification URL '{}',received {}: {}" |
| 102 |
|
.format(url, response.status_code, response.content)) |
| 103 |
0 |
except requests.exceptions.RequestException as e: |
| 104 |
0 |
error_text = type(e).__name__ + ": " + str(e) |
| 105 |
0 |
raise EngineException("Cannot access to the notification URL '{}': {}".format(url, error_text)) |
| 106 |
|
|
| 107 |
0 |
url = content["CallbackUri"] |
| 108 |
0 |
auth = content.get("authentication") |
| 109 |
0 |
_check_endpoint(url, auth) |
| 110 |
0 |
content["schema_version"] = schema_version = "1.1" |
| 111 |
0 |
if auth is not None and auth["authType"] == "basic": |
| 112 |
0 |
if content["authentication"]["paramsBasic"].get("password"): |
| 113 |
0 |
content["authentication"]["paramsBasic"]["password"] = \ |
| 114 |
|
self.db.encrypt(content["authentication"]["paramsBasic"]["password"], |
| 115 |
|
schema_version=schema_version, salt=content["_id"]) |
| 116 |
0 |
return None |
| 117 |
|
|
| 118 |
1 |
def new(self, rollback, session, indata=None, kwargs=None, headers=None): |
| 119 |
|
""" |
| 120 |
|
Uses BaseTopic.new to create entry into db |
| 121 |
|
Once entry is made into subscriptions,mapper function is invoked |
| 122 |
|
""" |
| 123 |
0 |
_id, op_id = BaseTopic.new(self, rollback, session, indata=indata, kwargs=kwargs, headers=headers) |
| 124 |
0 |
rollback.append({"topic": "mapped_subscriptions", "operation": "del_list", "filter": {"reference": _id}}) |
| 125 |
0 |
self._subscription_mapper(_id, indata, table="mapped_subscriptions") |
| 126 |
0 |
return _id, op_id |
| 127 |
|
|
| 128 |
1 |
def delete_extra(self, session, _id, db_content, not_send_msg=None): |
| 129 |
|
""" |
| 130 |
|
Deletes the mapped_subscription entry for this particular subscriber |
| 131 |
|
:param _id: subscription_id deleted |
| 132 |
|
""" |
| 133 |
0 |
super().delete_extra(session, _id, db_content, not_send_msg) |
| 134 |
0 |
filter_q = {"reference": _id} |
| 135 |
0 |
self.db.del_list("mapped_subscriptions", filter_q) |
| 136 |
|
|
| 137 |
|
|
| 138 |
1 |
class NslcmSubscriptionsTopic(CommonSubscriptions): |
| 139 |
1 |
schema_new = subscription |
| 140 |
|
|
| 141 |
1 |
def _subscription_mapper(self, _id, data, table): |
| 142 |
|
""" |
| 143 |
|
Performs data transformation on subscription request |
| 144 |
|
:param data: data to be trasformed |
| 145 |
|
:param table: table in which transformed data are inserted |
| 146 |
|
""" |
| 147 |
0 |
formatted_data = [] |
| 148 |
0 |
formed_data = {"reference": data.get("_id"), |
| 149 |
|
"CallbackUri": data.get("CallbackUri")} |
| 150 |
0 |
if data.get("authentication"): |
| 151 |
0 |
formed_data.update({"authentication": data.get("authentication")}) |
| 152 |
0 |
if data.get("filter"): |
| 153 |
0 |
if data["filter"].get("nsInstanceSubscriptionFilter"): |
| 154 |
0 |
key = list(data["filter"]["nsInstanceSubscriptionFilter"].keys())[0] |
| 155 |
0 |
identifier = data["filter"]["nsInstanceSubscriptionFilter"][key] |
| 156 |
0 |
formed_data.update({"identifier": identifier}) |
| 157 |
0 |
if data["filter"].get("notificationTypes"): |
| 158 |
0 |
for elem in data["filter"].get("notificationTypes"): |
| 159 |
0 |
update_dict = formed_data.copy() |
| 160 |
0 |
update_dict["notificationType"] = elem |
| 161 |
0 |
if elem == "NsIdentifierCreationNotification": |
| 162 |
0 |
update_dict["operationTypes"] = "INSTANTIATE" |
| 163 |
0 |
update_dict["operationStates"] = "ANY" |
| 164 |
0 |
formatted_data.append(update_dict) |
| 165 |
0 |
elif elem == "NsIdentifierDeletionNotification": |
| 166 |
0 |
update_dict["operationTypes"] = "TERMINATE" |
| 167 |
0 |
update_dict["operationStates"] = "ANY" |
| 168 |
0 |
formatted_data.append(update_dict) |
| 169 |
0 |
elif elem == "NsLcmOperationOccurrenceNotification": |
| 170 |
0 |
if "operationTypes" in data["filter"].keys(): |
| 171 |
0 |
update_dict["operationTypes"] = data["filter"]["operationTypes"] |
| 172 |
|
else: |
| 173 |
0 |
update_dict["operationTypes"] = "ANY" |
| 174 |
0 |
if "operationStates" in data["filter"].keys(): |
| 175 |
0 |
update_dict["operationStates"] = data["filter"]["operationStates"] |
| 176 |
|
else: |
| 177 |
0 |
update_dict["operationStates"] = "ANY" |
| 178 |
0 |
formatted_data.append(update_dict) |
| 179 |
0 |
elif elem == "NsChangeNotification": |
| 180 |
0 |
if "nsComponentTypes" in data["filter"].keys(): |
| 181 |
0 |
update_dict["nsComponentTypes"] = data["filter"]["nsComponentTypes"] |
| 182 |
|
else: |
| 183 |
0 |
update_dict["nsComponentTypes"] = "ANY" |
| 184 |
0 |
if "lcmOpNameImpactingNsComponent" in data["filter"].keys(): |
| 185 |
0 |
update_dict["lcmOpNameImpactingNsComponent"] = \ |
| 186 |
|
data["filter"]["lcmOpNameImpactingNsComponent"] |
| 187 |
|
else: |
| 188 |
0 |
update_dict["lcmOpNameImpactingNsComponent"] = "ANY" |
| 189 |
0 |
if "lcmOpOccStatusImpactingNsComponent" in data["filter"].keys(): |
| 190 |
0 |
update_dict["lcmOpOccStatusImpactingNsComponent"] = \ |
| 191 |
|
data["filter"]["lcmOpOccStatusImpactingNsComponent"] |
| 192 |
|
else: |
| 193 |
0 |
update_dict["lcmOpOccStatusImpactingNsComponent"] = "ANY" |
| 194 |
0 |
formatted_data.append(update_dict) |
| 195 |
0 |
self.db.create_list(table, formatted_data) |
| 196 |
0 |
return None |
![[Jenkins]](/jenkins/static/c06f6c43/images/jenkins-header-logo-v2.svg){kind=logo}
