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from django.shortcuts import get_object_or_404
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from django.utils.translation import gettext_lazy as _
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from rest_framework import status
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from rest_framework.decorators import action
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from rest_framework.request import Request
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from rest_framework.response import Response
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from assets.models import Asset
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from authentication.permissions import IsValidUserOrConnectionToken
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from common.api import JMSBulkModelViewSet
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from orgs.utils import tmp_to_root_org
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from terminal import serializers
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from terminal.models import Session, Endpoint, EndpointRule
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__all__ = ['EndpointViewSet', 'EndpointRuleViewSet']
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class SmartEndpointViewMixin:
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get_serializer: callable
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request: Request
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# View 处理过程中用的属性
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target_instance: None
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target_protocol: None
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@action(methods=['get'], detail=False, permission_classes=[IsValidUserOrConnectionToken])
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@tmp_to_root_org()
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def smart(self, request, *args, **kwargs):
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self.target_instance = self.get_target_instance()
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self.target_protocol = self.get_target_protocol()
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if not self.target_protocol:
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error = _('Not found protocol query params')
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return Response(data={'error': error}, status=status.HTTP_404_NOT_FOUND)
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endpoint = self.match_endpoint()
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serializer = self.get_serializer(endpoint)
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return Response(serializer.data)
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def match_endpoint(self):
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endpoint = self.match_endpoint_by_label()
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if not endpoint:
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endpoint = self.match_endpoint_by_target_ip()
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return endpoint
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def match_endpoint_by_label(self):
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return Endpoint.match_by_instance_label(self.target_instance, self.target_protocol, self.request)
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def match_endpoint_by_target_ip(self):
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target_ip = self.request.GET.get('target_ip', '') # 支持target_ip参数，用来方便测试
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if not target_ip and callable(getattr(self.target_instance, 'get_target_ip', None)):
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target_ip = self.target_instance.get_target_ip()
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endpoint = EndpointRule.match_endpoint(
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self.target_instance, target_ip, self.target_protocol, self.request
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)
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return endpoint
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def get_target_instance(self):
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request = self.request
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asset_id = request.GET.get('asset_id')
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session_id = request.GET.get('session_id')
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token_id = request.GET.get('token')
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if token_id:
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from authentication.models import ConnectionToken
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token = ConnectionToken.objects.filter(id=token_id).first()
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if token and token.asset:
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asset_id = token.asset.id
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if asset_id:
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pk, model = asset_id, Asset
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elif session_id:
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pk, model = session_id, Session
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else:
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pk, model = None, None
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if not pk or not model:
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return None
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with tmp_to_root_org():
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instance = get_object_or_404(model, pk=pk)
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return instance
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def get_target_protocol(self):
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protocol = None
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if not protocol:
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protocol = self.request.GET.get('protocol')
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return protocol
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class EndpointViewSet(SmartEndpointViewMixin, JMSBulkModelViewSet):
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filterset_fields = ('name', 'host')
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search_fields = filterset_fields
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serializer_class = serializers.EndpointSerializer
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queryset = Endpoint.objects.all()
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class EndpointRuleViewSet(JMSBulkModelViewSet):
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filterset_fields = ('name',)
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search_fields = filterset_fields
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serializer_class = serializers.EndpointRuleSerializer
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queryset = EndpointRule.objects.all()
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