mirror of https://github.com/jumpserver/jumpserver
231 lines
8.6 KiB
Python
231 lines
8.6 KiB
Python
# -*- coding: utf-8 -*-
|
||
#
|
||
import os
|
||
import tarfile
|
||
|
||
from django.shortcuts import get_object_or_404, reverse
|
||
from django.utils.translation import ugettext as _
|
||
from django.utils.encoding import escape_uri_path
|
||
from django.http import FileResponse
|
||
from django.core.files.storage import default_storage
|
||
from rest_framework import viewsets, views
|
||
from rest_framework.response import Response
|
||
from rest_framework.decorators import action
|
||
from rest_framework.permissions import IsAuthenticated
|
||
from rest_framework import generics
|
||
|
||
from common.utils import data_to_json
|
||
from common.const.http import GET
|
||
from common.utils import get_logger, get_object_or_none
|
||
from common.mixins.api import AsyncApiMixin
|
||
from common.drf.filters import DatetimeRangeFilter
|
||
from common.drf.renders import PassthroughRenderer
|
||
from orgs.mixins.api import OrgBulkModelViewSet
|
||
from orgs.utils import tmp_to_root_org, tmp_to_org
|
||
from users.models import User
|
||
from .. import utils
|
||
from ..utils import find_session_replay_local, download_session_replay
|
||
from ..models import Session
|
||
from .. import serializers
|
||
from terminal.utils import is_session_approver
|
||
|
||
__all__ = [
|
||
'SessionViewSet', 'SessionReplayViewSet', 'SessionJoinValidateAPI',
|
||
'MySessionAPIView',
|
||
]
|
||
|
||
logger = get_logger(__name__)
|
||
|
||
|
||
class MySessionAPIView(generics.ListAPIView):
|
||
permission_classes = (IsAuthenticated, )
|
||
serializer_class = serializers.SessionSerializer
|
||
|
||
def get_queryset(self):
|
||
with tmp_to_root_org():
|
||
user = self.request.user
|
||
qs = Session.objects.filter(user_id=user.id)
|
||
return qs
|
||
|
||
|
||
class SessionViewSet(OrgBulkModelViewSet):
|
||
model = Session
|
||
serializer_classes = {
|
||
'default': serializers.SessionSerializer,
|
||
'display': serializers.SessionDisplaySerializer,
|
||
}
|
||
search_fields = [
|
||
"user", "asset", "system_user", "remote_addr",
|
||
"protocol", "is_finished", 'login_from',
|
||
]
|
||
filterset_fields = search_fields + ['terminal']
|
||
date_range_filter_fields = [
|
||
('date_start', ('date_from', 'date_to'))
|
||
]
|
||
extra_filter_backends = [DatetimeRangeFilter]
|
||
rbac_perms = {
|
||
'download': ['terminal.download_sessionreplay']
|
||
}
|
||
|
||
@staticmethod
|
||
def prepare_offline_file(session, local_path):
|
||
replay_path = default_storage.path(local_path)
|
||
current_dir = os.getcwd()
|
||
dir_path = os.path.dirname(replay_path)
|
||
replay_filename = os.path.basename(replay_path)
|
||
meta_filename = '{}.json'.format(session.id)
|
||
offline_filename = '{}.tar'.format(session.id)
|
||
os.chdir(dir_path)
|
||
|
||
with open(meta_filename, 'wt') as f:
|
||
serializer = serializers.SessionDisplaySerializer(session)
|
||
data = data_to_json(serializer.data)
|
||
f.write(data)
|
||
|
||
with tarfile.open(offline_filename, 'w') as f:
|
||
f.add(replay_filename)
|
||
f.add(meta_filename)
|
||
file = open(offline_filename, 'rb')
|
||
os.chdir(current_dir)
|
||
return file
|
||
|
||
@action(methods=[GET], detail=True, renderer_classes=(PassthroughRenderer,), url_path='replay/download',
|
||
url_name='replay-download')
|
||
def download(self, request, *args, **kwargs):
|
||
session = self.get_object()
|
||
local_path, url = utils.get_session_replay_url(session)
|
||
if local_path is None:
|
||
return Response({"error": url}, status=404)
|
||
file = self.prepare_offline_file(session, local_path)
|
||
|
||
response = FileResponse(file)
|
||
response['Content-Type'] = 'application/octet-stream'
|
||
# 这里要注意哦，网上查到的方法都是response['Content-Disposition']='attachment;filename="filename.py"',
|
||
# 但是如果文件名是英文名没问题，如果文件名包含中文，下载下来的文件名会被改为url中的path。
|
||
filename = escape_uri_path('{}.tar'.format(session.id))
|
||
disposition = "attachment; filename*=UTF-8''{}".format(filename)
|
||
response["Content-Disposition"] = disposition
|
||
return response
|
||
|
||
def filter_queryset(self, queryset):
|
||
queryset = super().filter_queryset(queryset)
|
||
# 解决guacamole更新session时并发导致幽灵会话的问题，暂不处理
|
||
if self.request.method in ('PATCH',):
|
||
queryset = queryset.select_for_update()
|
||
return queryset
|
||
|
||
def perform_create(self, serializer):
|
||
if hasattr(self.request.user, 'terminal'):
|
||
serializer.validated_data["terminal"] = self.request.user.terminal
|
||
return super().perform_create(serializer)
|
||
|
||
|
||
class SessionReplayViewSet(AsyncApiMixin, viewsets.ViewSet):
|
||
serializer_class = serializers.ReplaySerializer
|
||
download_cache_key = "SESSION_REPLAY_DOWNLOAD_{}"
|
||
session = None
|
||
rbac_perms = {
|
||
'create': 'terminal.upload_sessionreplay',
|
||
'retrieve': 'terminal.download_sessionreplay',
|
||
}
|
||
|
||
def create(self, request, *args, **kwargs):
|
||
session_id = kwargs.get('pk')
|
||
session = get_object_or_404(Session, id=session_id)
|
||
serializer = self.serializer_class(data=request.data)
|
||
|
||
if serializer.is_valid():
|
||
file = serializer.validated_data['file']
|
||
# 兼容旧版本 API 未指定 version 为 2 的情况
|
||
version = serializer.validated_data.get('version', 2)
|
||
name, err = session.save_replay_to_storage_with_version(file, version)
|
||
if not name:
|
||
msg = "Failed save replay `{}`: {}".format(session_id, err)
|
||
logger.error(msg)
|
||
return Response({'msg': str(err)}, status=400)
|
||
url = default_storage.url(name)
|
||
return Response({'url': url}, status=201)
|
||
else:
|
||
msg = 'Upload data invalid: {}'.format(serializer.errors)
|
||
logger.error(msg)
|
||
return Response({'msg': serializer.errors}, status=401)
|
||
|
||
@staticmethod
|
||
def get_replay_data(session, url):
|
||
tp = 'json'
|
||
if session.protocol in ('rdp', 'vnc'):
|
||
# 需要考虑录像播放和离线播放器的约定，暂时不处理
|
||
tp = 'guacamole'
|
||
if url.endswith('.cast.gz'):
|
||
tp = 'asciicast'
|
||
|
||
download_url = reverse('api-terminal:session-replay-download', kwargs={'pk': session.id})
|
||
data = {
|
||
'type': tp, 'src': url,
|
||
'user': session.user, 'asset': session.asset,
|
||
'system_user': session.system_user,
|
||
'date_start': session.date_start,
|
||
'date_end': session.date_end,
|
||
'download_url': download_url,
|
||
}
|
||
return data
|
||
|
||
def is_need_async(self):
|
||
if self.action != 'retrieve':
|
||
return False
|
||
return True
|
||
|
||
def retrieve(self, request, *args, **kwargs):
|
||
session_id = kwargs.get('pk')
|
||
session = get_object_or_404(Session, id=session_id)
|
||
local_path, url = find_session_replay_local(session)
|
||
|
||
if not local_path:
|
||
local_path, url = download_session_replay(session)
|
||
if not local_path:
|
||
return Response({"error": url}, status=404)
|
||
data = self.get_replay_data(session, url)
|
||
return Response(data)
|
||
|
||
|
||
class SessionJoinValidateAPI(views.APIView):
|
||
"""
|
||
监控用
|
||
"""
|
||
serializer_class = serializers.SessionJoinValidateSerializer
|
||
rbac_perms = {
|
||
'POST': 'terminal.validate_sessionactionperm'
|
||
}
|
||
|
||
def post(self, request, *args, **kwargs):
|
||
serializer = self.serializer_class(data=request.data)
|
||
if not serializer.is_valid():
|
||
msg = str(serializer.errors)
|
||
return Response({'ok': False, 'msg': msg}, status=401)
|
||
user_id = serializer.validated_data['user_id']
|
||
session_id = serializer.validated_data['session_id']
|
||
|
||
with tmp_to_root_org():
|
||
session = get_object_or_none(Session, pk=session_id)
|
||
if not session:
|
||
msg = _('Session does not exist: {}'.format(session_id))
|
||
return Response({'ok': False, 'msg': msg}, status=401)
|
||
if not session.can_join:
|
||
msg = _('Session is finished or the protocol not supported')
|
||
return Response({'ok': False, 'msg': msg}, status=401)
|
||
|
||
user = get_object_or_none(User, pk=user_id)
|
||
if not user:
|
||
msg = _('User does not exist: {}'.format(user_id))
|
||
return Response({'ok': False, 'msg': msg}, status=401)
|
||
|
||
with tmp_to_org(session.org):
|
||
if is_session_approver(session_id, user_id):
|
||
return Response({'ok': True, 'msg': ''}, status=200)
|
||
|
||
if not user.has_perm('terminal.monitor_session'):
|
||
msg = _('User does not have permission')
|
||
return Response({'ok': False, 'msg': msg}, status=401)
|
||
|
||
return Response({'ok': True, 'msg': ''}, status=200)
|