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# -*- coding: utf-8 -*-
#
from collections import OrderedDict
import copy
import logging
import os
from rest_framework import viewsets, serializers
from rest_framework.views import APIView, Response
from rest_framework.permissions import AllowAny
from django.shortcuts import get_object_or_404
from django.utils import timezone
from django.conf import settings
from common.utils import get_object_or_none
from .models import Terminal, Status, Session, Task
from .serializers import TerminalSerializer, StatusSerializer, \
SessionSerializer, TaskSerializer
from .hands import IsSuperUserOrAppUser, IsAppUser, \
IsSuperUserOrAppUserOrUserReadonly
from .backends import get_command_store, get_replay_store, SessionCommandSerializer
logger = logging.getLogger(__file__)
class TerminalViewSet(viewsets.ModelViewSet):
queryset = Terminal.objects.filter(is_deleted=False)
serializer_class = TerminalSerializer
permission_classes = (IsSuperUserOrAppUserOrUserReadonly,)
def create(self, request, *args, **kwargs):
name = request.data.get('name')
remote_ip = request.META.get('REMOTE_ADDR')
x_real_ip = request.META.get('X-Real-IP')
remote_addr = x_real_ip or remote_ip
terminal = get_object_or_none(Terminal, name=name)
if terminal:
msg = 'Terminal name %s already used' % name
return Response({'msg': msg}, status=409)
serializer = self.serializer_class(data={
'name': name, 'remote_addr': remote_addr
})
if serializer.is_valid():
terminal = serializer.save()
app_user, access_key = terminal.create_app_user()
data = OrderedDict()
data['terminal'] = copy.deepcopy(serializer.data)
data['user'] = app_user.to_json()
data['access_key'] = {'id': access_key.id,
'secret': access_key.secret}
return Response(data, status=201)
else:
data = serializer.errors
return Response(data, status=400)
def get_permissions(self):
if self.action == "create":
self.permission_classes = (AllowAny,)
return super().get_permissions()
class StatusViewSet(viewsets.ModelViewSet):
queryset = Status.objects.all()
serializer_class = StatusSerializer
permission_classes = (IsSuperUserOrAppUser,)
session_serializer_class = SessionSerializer
task_serializer_class = TaskSerializer
def create(self, request, *args, **kwargs):
self.handle_sessions()
super().create(request, *args, **kwargs)
tasks = self.request.user.terminal.task_set.filter(is_finished=False)
serializer = self.task_serializer_class(tasks, many=True)
return Response(serializer.data, status=201)
def handle_sessions(self):
sessions_active = []
for session_data in self.request.data.get("sessions", []):
self.create_or_update_session(session_data)
if not session_data["is_finished"]:
sessions_active.append(session_data["id"])
sessions_in_db_active = Session.objects.filter(
is_finished=False,
terminal=self.request.user.terminal.id
)
for session in sessions_in_db_active:
if str(session.id) not in sessions_active:
session.is_finished = True
session.date_end = timezone.now()
session.save()
def create_or_update_session(self, session_data):
session_data["terminal"] = self.request.user.terminal.id
_id = session_data["id"]
session = get_object_or_none(Session, id=_id)
if session:
serializer = SessionSerializer(
data=session_data, instance=session
)
else:
serializer = SessionSerializer(data=session_data)
if serializer.is_valid():
session = serializer.save()
return session
else:
msg = "session data is not valid {}".format(serializer.errors)
logger.error(msg)
return None
def get_queryset(self):
terminal_id = self.kwargs.get("terminal", None)
if terminal_id:
terminal = get_object_or_404(Terminal, id=terminal_id)
self.queryset = terminal.status_set.all()
return self.queryset
def perform_create(self, serializer):
serializer.validated_data["terminal"] = self.request.user.terminal
return super().perform_create(serializer)
def get_permissions(self):
if self.action == "create":
self.permission_classes = (IsAppUser,)
return super().get_permissions()
class SessionViewSet(viewsets.ModelViewSet):
queryset = Session.objects.all()
serializers_class = SessionSerializer
permission_classes = (IsSuperUserOrAppUser,)
def get_queryset(self):
terminal_id = self.kwargs.get("terminal", None)
if terminal_id:
terminal = get_object_or_404(Terminal, id=terminal_id)
self.queryset = terminal.status_set.all()
return self.queryset
class TaskViewSet(viewsets.ModelViewSet):
queryset = Task.objects.all()
serializer_class = TaskSerializer
permission_classes = (IsSuperUserOrAppUser,)
# def get_queryset(self):
# terminal_id = self.kwargs.get("terminal", None)
# if terminal_id:
# terminal = get_object_or_404(Terminal, id=terminal_id)
# self.queryset = terminal.status_set.all()
#
# if hasattr(self.request.user, "terminal"):
# terminal = self.request.user.terminal
# self.queryset = terminal.status_set.all()
# return self.queryset
class SessionReplayAPI(APIView):
permission_classes = (IsSuperUserOrAppUser,)
def post(self, request, **kwargs):
session_id = kwargs.get("pk", None)
session = get_object_or_404(Session, id=session_id)
record_dir = settings.CONFIG.SESSION_RECORDE_DIR
date = session.date_start.strftime("%Y-%m-%d")
record_dir = os.path.join(record_dir, date, str(session.id))
record_filename = os.path.join(record_dir, "replay.tar.gz2")
if not os.path.isdir(record_dir):
try:
os.makedirs(record_dir)
except FileExistsError:
pass
archive_stream = request.data.get("archive")
if not archive_stream:
return Response("None file upload", status=400)
with open(record_filename, 'wb') as f:
for chunk in archive_stream.chunks():
f.write(chunk)
session.has_replay = True
session.save()
return Response({"session_id": session.id}, status=201)
class CommandViewSet(viewsets.ViewSet):
"""接受app发送来的command log, 格式如下
{
"user": "admin",
"asset": "localhost",
"system_user": "web",
"session": "xxxxxx",
"input": "whoami",
"output": "d2hvbWFp", # base64.b64encode(s)
"timestamp": 1485238673.0
}
"""
command_store = get_command_store()
serializer_class = SessionCommandSerializer
permission_classes = (IsSuperUserOrAppUser,)
def get_queryset(self):
self.command_store.filter(**dict(self.request.data))
def create(self, request, *args, **kwargs):
serializer = self.serializer_class(data=request.data, many=True)
if serializer.is_valid():
ok = self.command_store.bulk_save(serializer.validated_data)
if ok:
return Response("ok", status=201)
else:
return Response("Save error", status=500)
else:
msg = "Not valid: {}".format(serializer.errors)
logger.error(msg)
return Response({"msg": msg}, status=401)
def list(self, request, *args, **kwargs):
queryset = list(self.command_store.all())
serializer = self.serializer_class(queryset, many=True)
return Response(serializer.data)