mirror of https://github.com/jumpserver/jumpserver
475 lines
18 KiB
Python
475 lines
18 KiB
Python
import base64
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import json
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import os
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import urllib.parse
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from django.conf import settings
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from django.http import HttpResponse
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from django.shortcuts import get_object_or_404
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from django.utils import timezone
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from django.utils.translation import gettext_lazy as _
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from rest_framework import status, serializers
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from rest_framework.decorators import action
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from rest_framework.exceptions import PermissionDenied, ValidationError
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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 accounts.const import AliasAccount
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from common.api import JMSModelViewSet
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from common.exceptions import JMSException
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from common.utils import random_string, get_logger, get_request_ip
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from common.utils.django import get_request_os
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from common.utils.http import is_true, is_false
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from orgs.mixins.api import RootOrgViewMixin
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from perms.models import ActionChoices
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from terminal.connect_methods import NativeClient, ConnectMethodUtil
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from terminal.models import EndpointRule, Endpoint
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from ..models import ConnectionToken, date_expired_default
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from ..serializers import (
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ConnectionTokenSerializer, ConnectionTokenSecretSerializer,
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SuperConnectionTokenSerializer, ConnectTokenAppletOptionSerializer,
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ConnectionTokenReusableSerializer,
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)
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__all__ = ['ConnectionTokenViewSet', 'SuperConnectionTokenViewSet']
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logger = get_logger(__name__)
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class RDPFileClientProtocolURLMixin:
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request: Request
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get_serializer: callable
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def get_rdp_file_info(self, token: ConnectionToken):
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rdp_options = {
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'full address:s': '',
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'username:s': '',
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'use multimon:i': '0',
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'session bpp:i': '32',
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'audiomode:i': '0',
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'disable wallpaper:i': '0',
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'disable full window drag:i': '0',
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'disable menu anims:i': '0',
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'disable themes:i': '0',
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'alternate shell:s': '',
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'shell working directory:s': '',
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'authentication level:i': '2',
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'connect to console:i': '0',
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'disable cursor setting:i': '0',
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'allow font smoothing:i': '1',
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'allow desktop composition:i': '1',
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'redirectprinters:i': '0',
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'prompt for credentials on client:i': '0',
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'autoreconnection enabled:i': '1',
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'bookmarktype:i': '3',
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'use redirection server name:i': '0',
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'smart sizing:i': '1',
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}
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# 设置多屏显示
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multi_mon = is_true(self.request.query_params.get('multi_mon'))
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if multi_mon:
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rdp_options['use multimon:i'] = '1'
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# 设置多屏显示
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multi_mon = is_true(self.request.query_params.get('multi_mon'))
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if multi_mon:
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rdp_options['use multimon:i'] = '1'
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# 设置磁盘挂载
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drives_redirect = is_true(self.request.query_params.get('drives_redirect'))
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if drives_redirect:
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if ActionChoices.contains(token.actions, ActionChoices.transfer()):
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rdp_options['drivestoredirect:s'] = '*'
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# 设置全屏
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full_screen = is_true(self.request.query_params.get('full_screen'))
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rdp_options['screen mode id:i'] = '2' if full_screen else '1'
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# 设置 RDP Server 地址
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endpoint = self.get_smart_endpoint(protocol='rdp', asset=token.asset)
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rdp_options['full address:s'] = f'{endpoint.host}:{endpoint.rdp_port}'
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# 设置用户名
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rdp_options['username:s'] = '{}|{}'.format(token.user.username, str(token.id))
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# rdp_options['domain:s'] = token.account_ad_domain
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# 设置宽高
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height = self.request.query_params.get('height')
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width = self.request.query_params.get('width')
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if width and height:
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rdp_options['desktopwidth:i'] = width
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rdp_options['desktopheight:i'] = height
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rdp_options['winposstr:s'] = f'0,1,0,0,{width},{height}'
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rdp_options['dynamic resolution:i'] = '0'
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# 设置其他选项
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rdp_options['session bpp:i'] = os.getenv('JUMPSERVER_COLOR_DEPTH', '32')
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rdp_options['audiomode:i'] = self.parse_env_bool('JUMPSERVER_DISABLE_AUDIO', 'false', '2', '0')
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# 设置远程应用, 不是 Mstsc
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if token.connect_method != NativeClient.mstsc:
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remote_app_options = token.get_remote_app_option()
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rdp_options.update(remote_app_options)
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rdp = token.asset.platform.protocols.filter(name='rdp').first()
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if rdp and rdp.setting.get('console'):
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rdp_options['administrative session:i'] = '1'
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# 文件名
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name = token.asset.name
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prefix_name = f'{token.user.username}-{name}'
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filename = self.get_connect_filename(prefix_name)
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content = ''
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for k, v in rdp_options.items():
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content += f'{k}:{v}\n'
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return filename, content
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@staticmethod
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def escape_name(name):
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name = name.replace('/', '_')
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name = name.replace('\\', '_')
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name = name.replace('.', '_')
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name = urllib.parse.quote(name)
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return name
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def get_connect_filename(self, prefix_name):
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filename = f'{prefix_name}-jumpserver'
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filename = self.escape_name(filename)
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return filename
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@staticmethod
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def parse_env_bool(env_key, env_default, true_value, false_value):
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return true_value if is_true(os.getenv(env_key, env_default)) else false_value
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def get_client_protocol_data(self, token: ConnectionToken):
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_os = get_request_os(self.request)
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connect_method_name = token.connect_method
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connect_method_dict = ConnectMethodUtil.get_connect_method(
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token.connect_method, token.protocol, _os
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)
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asset = token.asset
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if connect_method_dict is None:
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raise ValueError('Connect method not support: {}'.format(connect_method_name))
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account = token.account or token.input_username
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datetime = timezone.localtime(timezone.now()).strftime('%Y-%m-%d_%H:%M:%S')
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name = account + '@' + str(asset) + '[' + datetime + ']'
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data = {
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'version': 2,
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'id': str(token.id), # 兼容老的，未来几个版本删掉
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'value': token.value, # 兼容老的，未来几个版本删掉
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'name': self.escape_name(name),
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'protocol': token.protocol,
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'token': {
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'id': str(token.id),
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'value': token.value,
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},
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'file': {},
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'command': ''
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}
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if connect_method_name == NativeClient.mstsc or connect_method_dict['type'] == 'applet':
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filename, content = self.get_rdp_file_info(token)
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data.update({
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'protocol': 'rdp',
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'file': {
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'name': filename,
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'content': content,
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}
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})
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else:
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endpoint = self.get_smart_endpoint(
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protocol=connect_method_dict['endpoint_protocol'],
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asset=asset
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)
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data.update({
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'asset': {
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'id': str(asset.id),
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'category': asset.category,
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'type': asset.type,
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'name': asset.name,
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'address': asset.address,
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'info': {
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**asset.spec_info,
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}
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},
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'endpoint': {
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'host': endpoint.host,
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'port': endpoint.get_port(token.asset, token.protocol),
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}
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})
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return data
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def get_smart_endpoint(self, protocol, asset=None):
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endpoint = Endpoint.match_by_instance_label(asset, protocol)
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if not endpoint:
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target_ip = asset.get_target_ip() if asset else ''
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endpoint = EndpointRule.match_endpoint(
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target_instance=asset, target_ip=target_ip,
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protocol=protocol, request=self.request
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)
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return endpoint
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class ExtraActionApiMixin(RDPFileClientProtocolURLMixin):
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request: Request
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get_object: callable
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get_serializer: callable
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perform_create: callable
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validate_exchange_token: callable
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@action(methods=['POST', 'GET'], detail=True, url_path='rdp-file')
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def get_rdp_file(self, *args, **kwargs):
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token = self.get_object()
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token.is_valid()
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filename, content = self.get_rdp_file_info(token)
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filename = '{}.rdp'.format(filename)
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response = HttpResponse(content, content_type='application/octet-stream')
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response['Content-Disposition'] = 'attachment; filename*=UTF-8\'\'%s' % filename
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return response
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@action(methods=['POST', 'GET'], detail=True, url_path='client-url')
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def get_client_protocol_url(self, *args, **kwargs):
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token = self.get_object()
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token.is_valid()
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try:
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protocol_data = self.get_client_protocol_data(token)
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except ValueError as e:
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return Response(data={'error': str(e)}, status=status.HTTP_400_BAD_REQUEST)
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protocol_data = json.dumps(protocol_data).encode()
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protocol_data = base64.b64encode(protocol_data).decode()
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data = {
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'url': 'jms://{}'.format(protocol_data)
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}
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return Response(data=data)
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@action(methods=['PATCH'], detail=True)
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def expire(self, request, *args, **kwargs):
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instance = self.get_object()
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instance.expire()
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return Response(status=status.HTTP_204_NO_CONTENT)
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@action(methods=['PATCH'], detail=True, url_path='reuse')
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def reuse(self, request, *args, **kwargs):
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instance = self.get_object()
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if not settings.CONNECTION_TOKEN_REUSABLE:
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error = _('Reusable connection token is not allowed, global setting not enabled')
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raise serializers.ValidationError(error)
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serializer = self.get_serializer(instance, data=request.data, partial=True)
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serializer.is_valid(raise_exception=True)
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is_reusable = serializer.validated_data.get('is_reusable', False)
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instance.set_reusable(is_reusable)
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return Response(data=serializer.data)
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@action(methods=['POST'], detail=False)
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def exchange(self, request, *args, **kwargs):
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pk = request.data.get('id', None) or request.data.get('pk', None)
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# 只能兑换自己使用的 Token
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instance = get_object_or_404(ConnectionToken, pk=pk, user=request.user)
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instance.id = None
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self.validate_exchange_token(instance)
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instance.date_expired = date_expired_default()
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instance.save()
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serializer = self.get_serializer(instance)
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return Response(serializer.data, status=status.HTTP_201_CREATED)
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class ConnectionTokenViewSet(ExtraActionApiMixin, RootOrgViewMixin, JMSModelViewSet):
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filterset_fields = (
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'user_display', 'asset_display'
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)
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search_fields = filterset_fields
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serializer_classes = {
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'default': ConnectionTokenSerializer,
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'reuse': ConnectionTokenReusableSerializer,
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}
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http_method_names = ['get', 'post', 'patch', 'head', 'options', 'trace']
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rbac_perms = {
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'list': 'authentication.view_connectiontoken',
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'retrieve': 'authentication.view_connectiontoken',
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'create': 'authentication.add_connectiontoken',
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'exchange': 'authentication.add_connectiontoken',
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'reuse': 'authentication.reuse_connectiontoken',
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'expire': 'authentication.expire_connectiontoken',
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'get_rdp_file': 'authentication.add_connectiontoken',
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'get_client_protocol_url': 'authentication.add_connectiontoken',
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}
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def get_queryset(self):
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queryset = ConnectionToken.objects \
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.filter(user=self.request.user) \
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.filter(date_expired__gt=timezone.now())
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return queryset
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def get_user(self, serializer):
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return self.request.user
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def perform_create(self, serializer):
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self.validate_serializer(serializer)
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return super().perform_create(serializer)
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def validate_serializer(self, serializer):
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data = serializer.validated_data
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user = self.get_user(serializer)
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asset = data.get('asset')
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account_name = data.get('account')
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_data = self._validate(user, asset, account_name)
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data.update(_data)
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return serializer
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def validate_exchange_token(self, token):
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user = token.user
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asset = token.asset
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account_name = token.account
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_data = self._validate(user, asset, account_name)
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for k, v in _data.items():
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setattr(token, k, v)
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return token
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def _validate(self, user, asset, account_name):
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data = dict()
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data['org_id'] = asset.org_id
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data['user'] = user
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data['value'] = random_string(16)
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if account_name == AliasAccount.ANON and asset.category not in ['web', 'custom']:
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raise ValidationError(_('Anonymous account is not supported for this asset'))
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account = self._validate_perm(user, asset, account_name)
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if account.has_secret:
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data['input_secret'] = ''
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if account.username != AliasAccount.INPUT:
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data['input_username'] = ''
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ticket = self._validate_acl(user, asset, account)
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if ticket:
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data['from_ticket'] = ticket
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data['is_active'] = False
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return data
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@staticmethod
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def _validate_perm(user, asset, account_name):
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from perms.utils.account import PermAccountUtil
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account = PermAccountUtil().validate_permission(user, asset, account_name)
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if not account or not account.actions:
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msg = _('Account not found')
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raise JMSException(code='perm_account_invalid', detail=msg)
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if account.date_expired < timezone.now():
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msg = _('Permission expired')
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raise JMSException(code='perm_expired', detail=msg)
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return account
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def _validate_acl(self, user, asset, account):
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from acls.models import LoginAssetACL
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acls = LoginAssetACL.filter_queryset(user, asset, account)
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ip = get_request_ip(self.request)
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acl = LoginAssetACL.get_match_rule_acls(user, ip, acls)
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if not acl:
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return
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if acl.is_action(acl.ActionChoices.accept):
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return
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if acl.is_action(acl.ActionChoices.reject):
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msg = _('ACL action is reject: {}({})'.format(acl.name, acl.id))
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raise JMSException(code='acl_reject', detail=msg)
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if acl.is_action(acl.ActionChoices.review):
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if not self.request.query_params.get('create_ticket'):
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msg = _('ACL action is review')
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raise JMSException(code='acl_review', detail=msg)
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ticket = LoginAssetACL.create_login_asset_review_ticket(
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user=user, asset=asset, account_username=account.username,
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assignees=acl.reviewers.all(), org_id=asset.org_id
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)
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return ticket
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class SuperConnectionTokenViewSet(ConnectionTokenViewSet):
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serializer_classes = {
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'default': SuperConnectionTokenSerializer,
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'get_secret_detail': ConnectionTokenSecretSerializer,
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}
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rbac_perms = {
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'create': 'authentication.add_superconnectiontoken',
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'renewal': 'authentication.add_superconnectiontoken',
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'get_secret_detail': 'authentication.view_superconnectiontokensecret',
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'get_applet_info': 'authentication.view_superconnectiontoken',
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'release_applet_account': 'authentication.view_superconnectiontoken',
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}
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def get_queryset(self):
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return ConnectionToken.objects.all()
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def get_user(self, serializer):
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return serializer.validated_data.get('user')
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@action(methods=['PATCH'], detail=False)
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def renewal(self, request, *args, **kwargs):
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from common.utils.timezone import as_current_tz
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token_id = request.data.get('id') or ''
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token = get_object_or_404(ConnectionToken, pk=token_id)
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date_expired = as_current_tz(token.date_expired)
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if token.is_expired:
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raise PermissionDenied('Token is expired at: {}'.format(date_expired))
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token.renewal()
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data = {
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'ok': True,
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'msg': f'Token is renewed, date expired: {date_expired}'
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}
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return Response(data=data, status=status.HTTP_200_OK)
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@action(methods=['POST'], detail=False, url_path='secret')
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def get_secret_detail(self, request, *args, **kwargs):
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""" 非常重要的 api, 在逻辑层再判断一下 rbac 权限, 双重保险 """
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rbac_perm = 'authentication.view_superconnectiontokensecret'
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if not request.user.has_perm(rbac_perm):
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raise PermissionDenied('Not allow to view secret')
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token_id = request.data.get('id') or ''
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token = get_object_or_404(ConnectionToken, pk=token_id)
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token.is_valid()
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serializer = self.get_serializer(instance=token)
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expire_now = request.data.get('expire_now', None)
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asset_type = token.asset.type
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# 设置默认值
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if expire_now is None:
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# TODO 暂时特殊处理 k8s 不过期
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if asset_type in ['k8s', 'kubernetes']:
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expire_now = False
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else:
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expire_now = not settings.CONNECTION_TOKEN_REUSABLE
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if is_false(expire_now):
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logger.debug('Api specified, now expire now')
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elif token.is_reusable and settings.CONNECTION_TOKEN_REUSABLE:
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logger.debug('Token is reusable, not expire now')
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else:
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token.expire()
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return Response(serializer.data, status=status.HTTP_200_OK)
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@action(methods=['POST'], detail=False, url_path='applet-option')
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def get_applet_info(self, *args, **kwargs):
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token_id = self.request.data.get('id')
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token = get_object_or_404(ConnectionToken, pk=token_id)
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if token.is_expired:
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return Response({'error': 'Token expired'}, status=status.HTTP_400_BAD_REQUEST)
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data = token.get_applet_option()
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serializer = ConnectTokenAppletOptionSerializer(data)
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return Response(serializer.data)
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@action(methods=['DELETE', 'POST'], detail=False, url_path='applet-account/release')
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def release_applet_account(self, *args, **kwargs):
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account_id = self.request.data.get('id')
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|
released = ConnectionToken.release_applet_account(account_id)
|
|
|
|
if released:
|
|
logger.debug('Release applet account success: {}'.format(account_id))
|
|
return Response({'msg': 'released'})
|
|
else:
|
|
logger.error('Release applet account error: {}'.format(account_id))
|
|
return Response({'error': 'not found or expired'}, status=400)
|