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import json
from rest_framework import status
from rest_framework import viewsets
from rest_framework.decorators import list_route, detail_route
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from models import *
from serializers import *
from openstackscripts.keystoneclientutils import KeystoneClientUtils
from openstackscripts.novaclientutils import NovaClientUtils
from openstackscripts.tenantnetworkdiscovery import *
from openstackscripts.credentials import *
from openstackscripts.endpoints import DiscoverEndpoints, LaunchEndpoints
from openstackscripts.traffictest.traffictest import TrafficTest
import os
import pickle
from django.core.mail import EmailMultiAlternatives
from django.template import Context
from django.template.loader import get_template
from django.template.loader import render_to_string
from django.core.mail import EmailMessage
from email.mime.text import MIMEText
from django.conf import settings
class CloudViewSet(viewsets.ModelViewSet):
queryset = Cloud.objects.all()
serializer_class = CloudSerializer
authentication_classes = (JSONWebTokenAuthentication,)
permission_classes = (IsAuthenticated,)
def perform_create(self, serializer):
serializer.save(creator=self.request.user)
class TenantViewSet(viewsets.ModelViewSet):
queryset = Tenant.objects.all()
serializer_class = TenantSerializer
authentication_classes = (JSONWebTokenAuthentication,)
permission_classes = (IsAuthenticated,)
action_serializers = {
'retrieve': TenantSerializer,
'list': TenantSerializer,
'create': TenantSerializer,
'update': TenantSerializer,
}
def get_serializer_class(self):
if hasattr(self, 'action_serializers'):
if self.action in self.action_serializers:
return self.action_serializers[self.action]
return super(TrafficViewSet, self).get_serializer_class()
def list(self, request, *args, **kwargs):
cloud_id = self.request.GET.get("cloud_id")
queryset = self.filter_queryset(
Tenant.objects.filter(cloud_id=cloud_id))
page = self.paginate_queryset(queryset)
if page is not None:
serializer = self.get_serializer(page, many=True)
return self.get_paginated_response(serializer.data)
serializer = self.get_serializer(queryset, many=True)
return Response(serializer.data)
@list_route(methods=["get"], url_path="discover/(?P<cloud_id>[^/.]+)")
def discover(self, request, cloud_id=None):
cloud = None
try:
cloud = Cloud.objects.get(pk=cloud_id, creator=request.user)
except Cloud.DoesNotExist:
return Response(status=status.HTTP_404_NOT_FOUND)
keystone_utils = KeystoneClientUtils(**get_credentials(cloud))
tenants = keystone_utils.get_tenants()
network_subnets_discovery = NetworkSubnetDiscovery(**get_credentials(cloud))
tenant_networks_routers = network_subnets_discovery.get_networks_and_subnets(
request.user,
cloud_id,
tenants
)
return Response(tenant_networks_routers)
class TrafficViewSet(viewsets.ModelViewSet):
queryset = Traffic.objects.all()
serializer_class = TrafficSerializer
authentication_classes = (JSONWebTokenAuthentication,)
permission_classes = (IsAuthenticated,)
action_serializers = {
'retrieve': TrafficRetrieveSerializer,
'list': TrafficListSerializer,
'create': TrafficSerializer,
'update': TrafficSerializer,
}
def get_serializer_class(self):
"""
Overriding method to get custom serializer classes based on request method.
"""
if hasattr(self, 'action_serializers'):
if self.action in self.action_serializers:
return self.action_serializers[self.action]
return super(TrafficViewSet, self).get_serializer_class()
def list(self, request, *args, **kwargs):
"""
Overriding list method to write custom queryset for retriveing traffic related to cloud.
"""
cloud_id = self.request.GET.get("cloud_id")
queryset = self.filter_queryset(
Traffic.objects.filter(cloud_id=cloud_id))
page = self.paginate_queryset(queryset)
if page is not None:
serializer = self.get_serializer(page, many=True)
return self.get_paginated_response(serializer.data)
serializer = self.get_serializer(queryset, many=True)
return Response(serializer.data)
def retrieve(self, request, *args, **kwargs):
"""
Overriding method to retriveing only traffic info for edit and get related info for view traffic.
"""
instance = self.get_object()
if json.loads(request.GET.get('get_related_data', 'false')):
serializer = self.get_serializer(instance)
else:
serializer = TrafficSerializer(instance)
return Response(serializer.data)
def perform_create(self, serializer):
"""
Overriding method to provide selected tenants, creator and cloud_id at the time of creating traffic.
"""
serializer.save(
tenants=self.request.data.getlist("tenants[]"),
creator=self.request.user,
cloud_id=self.request.data.get("cloud_id")
)
@detail_route(methods=["get"], url_path="select/tenant/(?P<tenant_id>[-\w]+)")
def select_tenant(self, request, pk=None, tenant_id=None):
"""
Method provides the functionality to select a tenant for traffic.
"""
with transaction.atomic():
tenant = Tenant.objects.filter(tenant_id=tenant_id).get()
traffic = Traffic.objects.get(pk=pk)
traffic.tenants.clear()
traffic.selected_networks.clear()
traffic.tenants.add(tenant)
traffic.save()
TrafficNetworksMap.objects.filter(traffic=traffic).delete()
serializer = TenantSerializer(tenant)
return Response(serializer.data)
@detail_route(methods=["get"], url_path="select/network")
def select_network(self, request, pk=None):
"""
Method to select networks for a selected tenant of a traffic.
"""
with transaction.atomic():
traffic = Traffic.objects.get(pk=pk)
if json.loads(request.GET.get("is_selected")):
network = Network.objects.get(pk=request.GET.get("network_id"))
traffic_network_map, created = TrafficNetworksMap.objects.get_or_create(traffic=traffic, network=network)
traffic_network_map.save()
# Subnet id of the first subnet of a network
subnet_obj = network.subnets.all()[0]
neutron_utils = NeutronClientUtils(**get_credentials(traffic.cloud))
subnet = neutron_utils.show_subnet(subnet_id=subnet_obj.subnet_id)
subnet_obj.allocation_pool_start = subnet.get("allocation_pools")[0].get("start")
subnet_obj.allocation_pool_end = subnet.get("allocation_pools")[0].get("end")
subnet_obj.save()
serializer = SubnetSerializer(subnet_obj)
return Response(serializer.data)
TrafficNetworksMap.objects.filter(traffic=traffic)\
.filter(network_id=request.GET.get("network_id")).delete()
return Response(status.HTTP_200_OK)
@detail_route(methods=["get"], url_path="endpoints")
def endpoints(self, request, pk=None):
"""
Lists all the endpoints belongs to a specific network of a traffic.
"""
endpoints = Endpoint.objects.filter(traffic_id=pk)
serializer = EndpointSerializer(endpoints, many=True)
return Response(serializer.data)
@detail_route(methods=["post"], url_path="endpoints/discover")
def discover_endpoints(self, request, pk=None):
"""
Discovers the endpoints from openstack environment for selected networks with given IP range of a traffic.
"""
response = []
selected_networks = []
for selected_range in json.loads(request.data.get("json", '[]')):
network_id = selected_range.get("network_id")
selected_networks.append(network_id)
filters = {
"traffic_id": pk,
"network_id": network_id
}
obj = TrafficNetworksMap.objects.filter(**filters).get()
obj.ip_range_start = selected_range.get("ip_range_start")
obj.ip_range_end = selected_range.get("ip_range_end")
obj.save()
endpoint_discovery = DiscoverEndpoints(pk, network_id)
endpoints = endpoint_discovery.get_endpoints(obj.ip_range_start, obj.ip_range_end)
response.extend(endpoints)
# Deleting endpoints for unselected networks (If selected previously and unselected in current request)
Endpoint.objects.filter(traffic_id=pk).exclude(network_id__in=selected_networks).delete()
serializer = EndpointSerializer(response, many=True)
return Response(serializer.data)
@detail_route(methods=["post"], url_path="endpoints/launch")
def launch_endpoints(self, request, pk=None):
response = []
traffic = Traffic.objects.get(pk=pk)
nova_credentials = get_nova_credentials(traffic.cloud)
selected_networks = []
for selected_item in json.loads(request.data.get("json", '[]')):
network_id = selected_item.get("network_id")
selected_networks.append(network_id)
filters = {
"traffic_id": pk,
"network_id": network_id
}
obj, created = TrafficNetworksMap.objects.get_or_create(**filters)
obj.endpoint_count = selected_item.get("endpoint_count")
obj.save()
launch_endpoint = LaunchEndpoints(traffic, network_id, **nova_credentials)
endpoints = launch_endpoint.launch(selected_item.get("endpoint_count"))
response.extend(endpoints)
# Deleting endpoints for unselected networks (If selected previously and unselected in current request)
Endpoint.objects.filter(traffic_id=pk).exclude(network_id__in=selected_networks).delete()
serializer = EndpointSerializer(response, many=True)
return Response(serializer.data)
@detail_route(methods=["get"], url_path="endpoints/select")
def select_endpoint(self, request, pk=None):
filters = {
"traffic_id": pk,
"endpoint_id": request.GET.get("endpoint_id")
}
endpoint = Endpoint.objects.filter(**filters).get(pk=request.GET.get("endpoint_pk"))
endpoint.is_selected = json.loads(request.GET.get("is_selected"))
endpoint.save()
serializer = EndpointSerializer(endpoint)
return Response(serializer.data)
@detail_route(methods=["get"], url_path="run/test")
def run_traffic_test(self, request, pk=None):
traffic_test = TrafficTest(pk)
test_result = traffic_test.run_test()
return Response(test_result)
@detail_route(methods=["get"], url_path="email/report")
def email_report(self, request, pk=None):
context = None
file_path = os.path.join(settings.MEDIA_ROOT, "traffic-test-report.txt")
with open(file_path, 'r') as f:
test_result = pickle.load(f) # load file content as mydict
context = Context({
'test_result': test_result,
'reciever_name': request.user.username,
})
sender = settings.EMAIL_HOST_USER
message = get_template('email_templates/traffic_test_report.html').render(context)
msg = EmailMessage("Traffic Test Report", message, to=['abdulgaffar@onecloudinc.com', request.user.email], from_email=sender)
msg.content_subtype = 'html'
f = file(file_path, 'rb')
attachment = MIMEText(f.read())
attachment.add_header('Content-Disposition', 'attachment', filename="traffic-test-report.txt")
msg.attach(attachment)
msg.send()
return Response(True)