mirror of https://github.com/jumpserver/jumpserver
205 lines
7.3 KiB
Python
205 lines
7.3 KiB
Python
# -*- coding: utf-8 -*-
|
||
#
|
||
from django.conf import settings
|
||
from django.utils import timezone
|
||
from rest_framework import generics
|
||
from rest_framework.fields import DateTimeField
|
||
from rest_framework.response import Response
|
||
|
||
from terminal.models import CommandStorage, Session, Command
|
||
from terminal.filters import CommandFilter
|
||
from orgs.utils import current_org
|
||
from common.drf.api import JMSBulkModelViewSet
|
||
from common.utils import get_logger
|
||
from terminal.backends.command.serializers import InsecureCommandAlertSerializer
|
||
from terminal.exceptions import StorageInvalid
|
||
from ..backends import (
|
||
get_command_storage, get_multi_command_storage,
|
||
SessionCommandSerializer,
|
||
)
|
||
from ..notifications import CommandAlertMessage
|
||
|
||
logger = get_logger(__name__)
|
||
__all__ = ['CommandViewSet', 'InsecureCommandAlertAPI']
|
||
|
||
|
||
class CommandQueryMixin:
|
||
command_store = get_command_storage()
|
||
filterset_fields = [
|
||
"asset", "system_user", "user", "session",
|
||
"risk_level", "input"
|
||
]
|
||
default_days_ago = 5
|
||
|
||
@staticmethod
|
||
def get_org_id():
|
||
if current_org.is_default():
|
||
org_id = ''
|
||
else:
|
||
org_id = current_org.id
|
||
return org_id
|
||
|
||
def get_query_risk_level(self):
|
||
risk_level = self.request.query_params.get('risk_level')
|
||
if risk_level is None:
|
||
return None
|
||
if risk_level.isdigit():
|
||
return int(risk_level)
|
||
return None
|
||
|
||
def get_queryset(self):
|
||
# 解决访问 /docs/ 问题
|
||
if hasattr(self, 'swagger_fake_view'):
|
||
return self.command_store.model.objects.none()
|
||
date_from, date_to = self.get_date_range()
|
||
q = self.request.query_params
|
||
multi_command_storage = get_multi_command_storage()
|
||
queryset = multi_command_storage.filter(
|
||
date_from=date_from, date_to=date_to,
|
||
user=q.get("user"), asset=q.get("asset"), system_user=q.get("system_user"),
|
||
input=q.get("input"), session=q.get("session_id", q.get('session')),
|
||
risk_level=self.get_query_risk_level(), org_id=self.get_org_id(),
|
||
)
|
||
return queryset
|
||
|
||
def filter_queryset(self, queryset):
|
||
# 解决es存储命令时，父类根据filter_fields过滤出现异常的问题，返回的queryset类型list
|
||
return queryset
|
||
|
||
def get_date_range(self):
|
||
now = timezone.now()
|
||
days_ago = now - timezone.timedelta(days=self.default_days_ago)
|
||
date_from_st = days_ago.timestamp()
|
||
date_to_st = now.timestamp()
|
||
|
||
query_params = self.request.query_params
|
||
date_from_q = query_params.get("date_from")
|
||
date_to_q = query_params.get("date_to")
|
||
|
||
dt_parser = DateTimeField().to_internal_value
|
||
|
||
if date_from_q:
|
||
date_from_st = dt_parser(date_from_q).timestamp()
|
||
|
||
if date_to_q:
|
||
date_to_st = dt_parser(date_to_q).timestamp()
|
||
return date_from_st, date_to_st
|
||
|
||
|
||
class CommandViewSet(JMSBulkModelViewSet):
|
||
"""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_storage()
|
||
serializer_class = SessionCommandSerializer
|
||
filterset_class = CommandFilter
|
||
search_fields = ('input',)
|
||
model = Command
|
||
ordering_fields = ('timestamp', )
|
||
|
||
def merge_all_storage_list(self, request, *args, **kwargs):
|
||
merged_commands = []
|
||
|
||
storages = CommandStorage.objects.all()
|
||
for storage in storages:
|
||
if not storage.is_valid():
|
||
continue
|
||
|
||
qs = storage.get_command_queryset()
|
||
commands = self.filter_queryset(qs)
|
||
merged_commands.extend(commands[:]) # ES 默认只取 10 条数据
|
||
order = self.request.query_params.get('order', None)
|
||
if order == 'timestamp':
|
||
merged_commands.sort(key=lambda command: command.timestamp)
|
||
else:
|
||
merged_commands.sort(key=lambda command: command.timestamp, reverse=True)
|
||
page = self.paginate_queryset(merged_commands)
|
||
if page is not None:
|
||
serializer = self.get_serializer(page, many=True)
|
||
return self.get_paginated_response(serializer.data)
|
||
|
||
serializer = self.get_serializer(merged_commands, many=True)
|
||
return Response(serializer.data)
|
||
|
||
def list(self, request, *args, **kwargs):
|
||
command_storage_id = self.request.query_params.get('command_storage_id')
|
||
session_id = self.request.query_params.get('session_id')
|
||
|
||
if session_id and not command_storage_id:
|
||
# 会话里的命令列表肯定会提供 session_id，这里防止 merge 的时候取全量的数据
|
||
return self.merge_all_storage_list(request, *args, **kwargs)
|
||
|
||
queryset = self.filter_queryset(self.get_queryset())
|
||
|
||
page = self.paginate_queryset(queryset)
|
||
if page is not None:
|
||
page = self.load_remote_addr(page)
|
||
serializer = self.get_serializer(page, many=True)
|
||
return self.get_paginated_response(serializer.data)
|
||
|
||
# 适配像 ES 这种没有指定分页只返回少量数据的情况
|
||
queryset = queryset[:]
|
||
|
||
queryset = self.load_remote_addr(queryset)
|
||
serializer = self.get_serializer(queryset, many=True)
|
||
return Response(serializer.data)
|
||
|
||
def load_remote_addr(self, queryset):
|
||
commands = list(queryset)
|
||
session_ids = {command.session for command in commands}
|
||
sessions = Session.objects.filter(id__in=session_ids).values_list('id', 'remote_addr')
|
||
session_addr_map = {str(i): addr for i, addr in sessions}
|
||
for command in commands:
|
||
command.remote_addr = session_addr_map.get(command.session, '')
|
||
return commands
|
||
|
||
def get_queryset(self):
|
||
command_storage_id = self.request.query_params.get('command_storage_id')
|
||
if not command_storage_id:
|
||
return Command.objects.none()
|
||
|
||
storage = CommandStorage.objects.get(id=command_storage_id)
|
||
if not storage.is_valid():
|
||
raise StorageInvalid
|
||
else:
|
||
qs = storage.get_command_queryset()
|
||
return qs
|
||
|
||
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 = "Command not valid: {}".format(serializer.errors)
|
||
logger.error(msg)
|
||
return Response({"msg": msg}, status=401)
|
||
|
||
|
||
class InsecureCommandAlertAPI(generics.CreateAPIView):
|
||
serializer_class = InsecureCommandAlertSerializer
|
||
rbac_perms = {
|
||
'POST': 'terminal.add_command'
|
||
}
|
||
|
||
def post(self, request, *args, **kwargs):
|
||
serializer = InsecureCommandAlertSerializer(data=request.data, many=True)
|
||
serializer.is_valid(raise_exception=True)
|
||
commands = serializer.validated_data
|
||
for command in commands:
|
||
if command['risk_level'] >= settings.SECURITY_INSECURE_COMMAND_LEVEL:
|
||
CommandAlertMessage(command).publish_async()
|
||
return Response()
|