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# -*- coding: utf-8 -*-
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#
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from django.shortcuts import get_object_or_404, reverse
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from django.core.files.storage import default_storage
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from rest_framework import viewsets
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from rest_framework.response import Response
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from common.utils import is_uuid, get_logger
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from common.mixins.api import AsyncApiMixin
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from common.permissions import IsOrgAdminOrAppUser, IsOrgAuditor
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from common.drf.filters import DatetimeRangeFilter
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from orgs.mixins.api import OrgBulkModelViewSet
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from ..utils import find_session_replay_local, download_session_replay
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from ..hands import SystemUser
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from ..models import Session
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from .. import serializers
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__all__ = ['SessionViewSet', 'SessionReplayViewSet',]
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logger = get_logger(__name__)
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class SessionViewSet(OrgBulkModelViewSet):
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model = Session
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serializer_classes = {
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'default': serializers.SessionSerializer,
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'display': serializers.SessionDisplaySerializer,
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}
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permission_classes = (IsOrgAdminOrAppUser, )
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filterset_fields = [
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"user", "asset", "system_user", "remote_addr",
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"protocol", "terminal", "is_finished",
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]
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date_range_filter_fields = [
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('date_start', ('date_from', 'date_to'))
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]
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extra_filter_backends = [DatetimeRangeFilter]
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def filter_queryset(self, queryset):
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queryset = super().filter_queryset(queryset)
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# 解决guacamole更新session时并发导致幽灵会话的问题
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if self.request.method in ('PATCH',):
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queryset = queryset.select_for_update()
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return queryset
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def perform_create(self, serializer):
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if hasattr(self.request.user, 'terminal'):
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serializer.validated_data["terminal"] = self.request.user.terminal
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sid = serializer.validated_data["system_user"]
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# guacamole提交的是id
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if is_uuid(sid):
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_system_user = get_object_or_404(SystemUser, id=sid)
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serializer.validated_data["system_user"] = _system_user.name
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return super().perform_create(serializer)
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def get_permissions(self):
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if self.request.method.lower() in ['get']:
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self.permission_classes = (IsOrgAdminOrAppUser | IsOrgAuditor, )
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return super().get_permissions()
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class SessionReplayViewSet(AsyncApiMixin, viewsets.ViewSet):
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serializer_class = serializers.ReplaySerializer
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permission_classes = (IsOrgAdminOrAppUser | IsOrgAuditor,)
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session = None
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download_cache_key = "SESSION_REPLAY_DOWNLOAD_{}"
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def create(self, request, *args, **kwargs):
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session_id = kwargs.get('pk')
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session = get_object_or_404(Session, id=session_id)
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serializer = self.serializer_class(data=request.data)
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if serializer.is_valid():
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file = serializer.validated_data['file']
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name, err = session.save_to_storage(file)
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if not name:
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msg = "Failed save replay `{}`: {}".format(session_id, err)
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logger.error(msg)
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return Response({'msg': str(err)}, status=400)
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url = default_storage.url(name)
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return Response({'url': url}, status=201)
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else:
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msg = 'Upload data invalid: {}'.format(serializer.errors)
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logger.error(msg)
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return Response({'msg': serializer.errors}, status=401)
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@staticmethod
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def get_replay_data(session, url):
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tp = 'json'
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if session.protocol in ('rdp', 'vnc'):
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tp = 'guacamole'
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download_url = reverse('terminal:session-replay-download', kwargs={'pk': session.id})
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data = {
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'type': tp, 'src': url,
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'user': session.user, 'asset': session.asset,
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'system_user': session.system_user,
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'date_start': session.date_start,
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'date_end': session.date_end,
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'download_url': download_url,
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}
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return data
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def is_need_async(self):
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if self.action != 'retrieve':
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return False
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return True
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def retrieve(self, request, *args, **kwargs):
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session_id = kwargs.get('pk')
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session = get_object_or_404(Session, id=session_id)
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local_path, url = find_session_replay_local(session)
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if not local_path:
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local_path, url = download_session_replay(session)
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if not local_path:
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return Response({"error": url})
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data = self.get_replay_data(session, url)
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return Response(data)
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