Fix bug for deleting subscription in ns termination
[vfc/gvnfm/vnflcm.git] / lcm / lcm / pub / utils / notificationsutil.py
index 444e807..b57b470 100644 (file)
 # limitations under the License.
 
 import json
+import base64
+import sys
+import traceback
 import logging
+import urllib.request
+import urllib.error
+import urllib.parse
 import uuid
-
-import requests
-from requests.auth import HTTPBasicAuth
-from rest_framework import status
+import httplib2
 
 from lcm.nf import const
 from lcm.pub.database.models import SubscriptionModel
-from lcm.pub.database.models import (
-    VmInstModel, NetworkInstModel,
-    PortInstModel, StorageInstModel, VNFCInstModel
-)
+from lcm.pub.database.models import VmInstModel
+from lcm.pub.database.models import NetworkInstModel
+from lcm.pub.database.models import PortInstModel
+from lcm.pub.database.models import StorageInstModel
+from lcm.pub.database.models import VNFCInstModel
+from lcm.pub.database.models import NfInstModel
 from lcm.pub.utils.timeutil import now_time
 from lcm.pub.utils.enumutil import enum
 
 logger = logging.getLogger(__name__)
 
-NOTIFY_TYPE = enum(lCM_OP_OCC="VnfLcmOperationOccurrenceNotification",
-                   CREATION="VnfIdentifierCreationNotification",
-                   DELETION="VnfIdentifierDeletionNotification")
+rest_no_auth, rest_oneway_auth, rest_bothway_auth = 0, 1, 2
+HTTP_200_OK, HTTP_201_CREATED, HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED = '200', '201', '204', '202'
+status_ok_list = [HTTP_200_OK, HTTP_201_CREATED, HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED]
+HTTP_404_NOTFOUND, HTTP_403_FORBIDDEN, HTTP_401_UNAUTHORIZED, HTTP_400_BADREQUEST = '404', '403', '401', '400'
+NOTIFY_TYPE = enum(
+    lCM_OP_OCC="VnfLcmOperationOccurrenceNotification",
+    CREATION="VnfIdentifierCreationNotification",
+    DELETION="VnfIdentifierDeletionNotification"
+)
 
 
 class NotificationsUtil(object):
-    def __init__(self):
-        pass
-
     def send_notification(self, notification):
         logger.info("Send Notifications to the callbackUri")
         filters = {
             "operationState": "operation_states",
-            "operation": "operation_types"
+            "operation": "operation_types",
+            "vnfInstanceId": "vnf_instance_filter"
         }
-        subscriptions_filter = {v + "__contains": notification[k] for k, v in filters.iteritems()}
+        subscriptions_filter = {v + "__contains": notification[k] for k, v in list(filters.items())}
 
         subscriptions = SubscriptionModel.objects.filter(**subscriptions_filter)
         if not subscriptions.exists():
@@ -56,25 +65,72 @@ class NotificationsUtil(object):
         for subscription in subscriptions:
             # set subscription id
             notification["subscriptionId"] = subscription.subscription_id
-            notification['_links']['subscription'] = {'href': '/api/vnflcm/v1/subscriptions/%s' % subscription.subscription_id}
+            notification['_links']['subscription'] = {
+                'href': '/api/vnflcm/v1/subscriptions/%s' % subscription.subscription_id
+            }
             callbackUri = subscription.callback_uri
             auth_info = json.loads(subscription.auth_info)
-            if auth_info["authType"] == const.OAUTH2_CLIENT_CREDENTIALS:
-                pass
-            try:
-                self.post_notification(callbackUri, auth_info, notification)
-            except Exception as e:
-                logger.error("Failed to post notification: %s", e.message)
-
-    def post_notification(self, callbackUri, auth_info, notification):
-        params = auth_info.get("paramsBasic", {})
-        username = params.get("userName")
-        password = params.get("password")
+            if const.BASIC in auth_info["authType"]:
+                try:
+                    self.post_notification(callbackUri, notification)
+                except Exception as e:
+                    logger.error("Failed to post notification: %s", e.args[0])
+
+    def post_notification(self, callbackUri, notification):
         logger.info("Sending notification to %s", callbackUri)
-        resp = requests.post(callbackUri, data=notification, auth=HTTPBasicAuth(username, password))
-        if resp.status_code != status.HTTP_204_NO_CONTENT:
-            raise Exception("Unable to send the notification to %s, due to %s" % (callbackUri, resp.text))
-        return
+        resp = self.call_req(callbackUri, "", "", "POST", json.dumps(notification))
+        if resp[0] != 0:
+            logger.error('Status code is %s, detail is %s.', resp[2], resp[1])
+
+    def call_req(self, full_url, user, passwd, method, content=''):
+        callid = str(uuid.uuid1())
+        logger.debug("[%s]call_req('%s','%s','%s',%s,'%s','%s')" % (
+            callid, full_url, user, passwd, rest_no_auth, method, content))
+        ret = None
+        resp_Location = ''
+        resp_status = ''
+        try:
+            headers = {'content-type': 'application/json', 'accept': 'application/json'}
+            if user:
+                headers['Authorization'] = 'Basic %s' % base64.b64encode(
+                    bytes('%s:%s' % (user, passwd), "utf-8")).decode()
+            ca_certs = None
+            for retry_times in range(3):
+                http = httplib2.Http(ca_certs=ca_certs, disable_ssl_certificate_validation=True)
+                http.follow_all_redirects = True
+                try:
+                    resp, resp_content = http.request(full_url, method=method.upper(), body=content, headers=headers)
+                    logger.info("resp=%s,resp_content=%s" % (resp, resp_content))
+                    resp_status, resp_body = resp['status'], resp_content.decode('UTF-8')
+                    resp_Location = resp.get('Location', "")
+                    logger.debug("[%s][%d]status=%s,resp_body=%s)" % (callid, retry_times, resp_status, resp_body))
+                    if resp_status in status_ok_list:
+                        ret = [0, resp_body, resp_status, resp_Location]
+                    else:
+                        ret = [1, resp_body, resp_status, resp_Location]
+                    break
+                except Exception as ex:
+                    if 'httplib.ResponseNotReady' in str(sys.exc_info()):
+                        logger.debug("retry_times=%d", retry_times)
+                        logger.error(traceback.format_exc())
+                        ret = [1, "Unable to connect to %s" % full_url, resp_status, resp_Location]
+                        continue
+                    raise ex
+        except urllib.error.URLError as err:
+            ret = [2, str(err), resp_status, resp_Location]
+        except Exception as ex:
+            logger.error(traceback.format_exc())
+            logger.error("[%s]ret=%s" % (callid, str(sys.exc_info())))
+            res_info = str(sys.exc_info())
+            if 'httplib.ResponseNotReady' in res_info:
+                res_info = "The URL[%s] request failed or is not responding." % full_url
+            ret = [3, res_info, resp_status, resp_Location]
+        except:
+            logger.error(traceback.format_exc())
+            ret = [4, str(sys.exc_info()), resp_status, resp_Location]
+
+        logger.debug("[%s]ret=%s" % (callid, str(ret)))
+        return ret
 
 
 def set_affected_vnfcs(affected_vnfcs, nfinstid, changetype):
@@ -134,7 +190,7 @@ def set_ext_connectivity(ext_connectivity, nfinstid):
             },
             'cpInstanceId': port.portid  # TODO: port.cpinstanceid is not initiated when create port resource.
         })
-    for network_id, ext_link_ports in ext_connectivity_map.items():
+    for network_id, ext_link_ports in list(ext_connectivity_map.items()):
         networks = NetworkInstModel.objects.filter(networkid=network_id)
         net_name = networks[0].name if networks else network_id
         network_resource = {
@@ -169,10 +225,9 @@ def set_affected_vss(affected_vss, nfinstid, changetype):
 
 
 def get_notification_status(operation_state):
-    notification_status = const.LCM_NOTIFICATION_STATUS.START
-    if operation_state in const.RESULT_RANGE:
-        notification_status = const.LCM_NOTIFICATION_STATUS.RESULT
-    return notification_status
+    if operation_state == const.OPERATION_STATE_TYPE.STARTING:
+        return const.LCM_NOTIFICATION_STATUS.START
+    return const.LCM_NOTIFICATION_STATUS.RESULT
 
 
 def prepare_notification(nfinstid, jobid, operation, operation_state):
@@ -192,7 +247,7 @@ def prepare_notification(nfinstid, jobid, operation, operation_state):
         'affectedVirtualLinks': [],
         'affectedVirtualStorages': [],
         'changedExtConnectivity': [],
-        'error': '',
+        'error': {},
         '_links': {
             'vnfInstance': {
                 'href': '%s/vnf_instances/%s' % (const.URL_PREFIX, nfinstid)
@@ -202,14 +257,21 @@ def prepare_notification(nfinstid, jobid, operation, operation_state):
             }
         }
     }
+    nfInsts = NfInstModel.objects.filter(nfinstid=nfinstid)
+    if nfInsts.exists():
+        notification_content['vnfmInstId'] = nfInsts[0].vnfminstid
+    else:
+        notification_content['vnfmInstId'] = "1"
     return notification_content
 
 
 def prepare_notification_data(nfinstid, jobid, changetype, operation):
-    data = prepare_notification(nfinstid=nfinstid,
-                                jobid=jobid,
-                                operation=operation,
-                                operation_state=const.OPERATION_STATE_TYPE.COMPLETED)
+    data = prepare_notification(
+        nfinstid=nfinstid,
+        jobid=jobid,
+        operation=operation,
+        operation_state=const.OPERATION_STATE_TYPE.COMPLETED
+    )
 
     set_affected_vnfcs(data['affectedVnfcs'], nfinstid, changetype)
     set_affected_vls(data['affectedVirtualLinks'], nfinstid, changetype)