# ~*~ coding: utf-8 ~*~ # Copyright (C) 2014-2018 Beijing DuiZhan Technology Co.,Ltd. All Rights Reserved. # # Licensed under the GNU General Public License v2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.gnu.org/licenses/gpl-2.0.html # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. from rest_framework import generics, mixins, viewsets from rest_framework.serializers import ValidationError from rest_framework.views import APIView from rest_framework.response import Response from rest_framework_bulk import BulkModelViewSet from django.utils.translation import ugettext_lazy as _ from django.shortcuts import get_object_or_404 from django.db.models import Count from common.utils import get_logger, get_object_or_none from ..hands import IsOrgAdmin from ..models import Node from ..tasks import update_assets_hardware_info_util, test_asset_connectability_util from .. import serializers logger = get_logger(__file__) __all__ = [ 'NodeViewSet', 'NodeChildrenApi', 'NodeAssetsApi', 'NodeAddAssetsApi', 'NodeRemoveAssetsApi', 'NodeReplaceAssetsApi', 'NodeAddChildrenApi', 'RefreshNodeHardwareInfoApi', 'TestNodeConnectiveApi' ] class NodeViewSet(viewsets.ModelViewSet): queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) serializer_class = serializers.NodeSerializer def perform_create(self, serializer): child_key = Node.root().get_next_child_key() serializer.validated_data["key"] = child_key serializer.save() def update(self, request, *args, **kwargs): node = self.get_object() if node.is_root(): node_value = node.value post_value = request.data.get('value') if node_value != post_value: return Response( {"msg": _("You cant update the root node name")}, status=400 ) return super().update(request, *args, **kwargs) class NodeChildrenApi(mixins.ListModelMixin, generics.CreateAPIView): queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) serializer_class = serializers.NodeSerializer instance = None def counter(self): values = [ child.value[child.value.rfind(' '):] for child in self.get_object().get_children() if child.value.startswith("新节点 ") ] values = [int(value) for value in values if value.strip().isdigit()] count = max(values)+1 if values else 1 return count def post(self, request, *args, **kwargs): if not request.data.get("value"): request.data["value"] = _("New node {}").format(self.counter()) return super().post(request, *args, **kwargs) def create(self, request, *args, **kwargs): instance = self.get_object() value = request.data.get("value") values = [child.value for child in instance.get_children()] if value in values: raise ValidationError( 'The same level node name cannot be the same' ) node = instance.create_child(value=value) return Response( {"id": node.id, "key": node.key, "value": node.value}, status=201, ) def get_object(self): pk = self.kwargs.get('pk') or self.request.query_params.get('id') if not pk: node = None else: node = get_object_or_404(Node, pk=pk) return node def get_queryset(self): queryset = [] query_all = self.request.query_params.get("all") query_assets = self.request.query_params.get('assets') node = self.get_object() if node is None: node = Node.root() node.assets__count = node.get_all_assets().count() queryset.append(node) if query_all: children = node.get_all_children() else: children = node.get_children() queryset.extend(list(children)) if query_assets: assets = node.get_assets() for asset in assets: node_fake = Node() node_fake.assets__count = 0 node_fake.id = asset.id node_fake.is_node = False node_fake.key = node.key + ':0' node_fake.value = asset.hostname queryset.append(node_fake) queryset = sorted(queryset, key=lambda x: x.is_node, reverse=True) return queryset def get(self, request, *args, **kwargs): return super().list(request, *args, **kwargs) class NodeAssetsApi(generics.ListAPIView): permission_classes = (IsOrgAdmin,) serializer_class = serializers.AssetSerializer def get_queryset(self): node_id = self.kwargs.get('pk') query_all = self.request.query_params.get('all') instance = get_object_or_404(Node, pk=node_id) if query_all: return instance.get_all_assets() else: return instance.get_assets() class NodeAddChildrenApi(generics.UpdateAPIView): queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) serializer_class = serializers.NodeAddChildrenSerializer instance = None def put(self, request, *args, **kwargs): instance = self.get_object() nodes_id = request.data.get("nodes") children = [get_object_or_none(Node, id=pk) for pk in nodes_id] for node in children: if not node: continue node.parent = instance return Response("OK") class NodeAddAssetsApi(generics.UpdateAPIView): serializer_class = serializers.NodeAssetsSerializer queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) instance = None def perform_update(self, serializer): assets = serializer.validated_data.get('assets') instance = self.get_object() instance.assets.add(*tuple(assets)) class NodeRemoveAssetsApi(generics.UpdateAPIView): serializer_class = serializers.NodeAssetsSerializer queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) instance = None def perform_update(self, serializer): assets = serializer.validated_data.get('assets') instance = self.get_object() if instance != Node.root(): instance.assets.remove(*tuple(assets)) else: assets = [asset for asset in assets if asset.nodes.count() > 1] instance.assets.remove(*tuple(assets)) class NodeReplaceAssetsApi(generics.UpdateAPIView): serializer_class = serializers.NodeAssetsSerializer queryset = Node.objects.all() permission_classes = (IsOrgAdmin,) instance = None def perform_update(self, serializer): assets = serializer.validated_data.get('assets') instance = self.get_object() for asset in assets: asset.nodes.set([instance]) class RefreshNodeHardwareInfoApi(APIView): permission_classes = (IsOrgAdmin,) model = Node def get(self, request, *args, **kwargs): node_id = kwargs.get('pk') node = get_object_or_404(self.model, id=node_id) assets = node.assets.all() task_name = _("更新节点资产硬件信息: {}".format(node.name)) task = update_assets_hardware_info_util.delay(assets, task_name=task_name) return Response({"task": task.id}) class TestNodeConnectiveApi(APIView): permission_classes = (IsOrgAdmin,) model = Node def get(self, request, *args, **kwargs): node_id = kwargs.get('pk') node = get_object_or_404(self.model, id=node_id) assets = node.assets.all() task_name = _("测试节点下资产是否可连接: {}".format(node.name)) task = test_asset_connectability_util.delay(assets, task_name=task_name) return Response({"task": task.id})