diff --git a/apps/assets/models/cmd_filter.py b/apps/assets/models/cmd_filter.py
index e26393fff..be8945c55 100644
--- a/apps/assets/models/cmd_filter.py
+++ b/apps/assets/models/cmd_filter.py
@@ -180,9 +180,10 @@ class CommandFilterRule(OrgModelMixin):
 
     @classmethod
     def get_queryset(
-            cls, user_id=None, user_group_id=None, system_user_id=None,
+            cls, user_id=None, user_group_id=None, account=None,
             asset_id=None, org_id=None
     ):
+        from perms.models.const import SpecialAccount
         user_groups = []
         user = get_object_or_none(User, pk=user_id)
         if user:
@@ -191,7 +192,7 @@ class CommandFilterRule(OrgModelMixin):
         if user_group:
             org_id = user_group.org_id
             user_groups.append(user_group)
-        account = get_object_or_none(Account, pk=system_user_id)
+
         asset = get_object_or_none(Asset, pk=asset_id)
         q = Q()
         if user:
@@ -200,7 +201,8 @@ class CommandFilterRule(OrgModelMixin):
             q |= Q(user_groups__in=set(user_groups))
         if account:
             org_id = account.org_id
-            q |= Q(accounts=account)
+            q |= Q(accounts__contains=list(account)) |\
+                 Q(accounts__contains=SpecialAccount.ALL.value)
         if asset:
             org_id = asset.org_id
             q |= Q(assets=asset)
diff --git a/apps/authentication/api/connection_token.py b/apps/authentication/api/connection_token.py
index 990e9d814..1ddd9fa77 100644
--- a/apps/authentication/api/connection_token.py
+++ b/apps/authentication/api/connection_token.py
@@ -1,6 +1,7 @@
 import abc
 import os
 import json
+import time
 import base64
 import urllib.parse
 from django.http import HttpResponse
@@ -41,17 +42,25 @@ class ConnectionTokenMixin:
     def get_request_resources(self, serializer):
         user = self.get_request_resource_user(serializer)
         asset = serializer.validated_data.get('asset')
-        application = serializer.validated_data.get('application')
-        system_user = serializer.validated_data.get('system_user')
-        return user, asset, application, system_user
+        account = serializer.validated_data.get('account')
+        return user, asset, account
 
     @staticmethod
-    def check_user_has_resource_permission(user, asset, application, system_user):
-        from perms.utils.asset import has_asset_system_permission
+    def check_user_has_resource_permission(user, asset, account):
+        from perms.utils.account import PermAccountUtil
+        if not asset or not user:
+            error = ''
+            raise PermissionDenied(error)
 
-        if asset and not has_asset_system_permission(user, asset, system_user):
-            error = f'User not has this asset and system user permission: ' \
-                    f'user={user.id} system_user={system_user.id} asset={asset.id}'
+        actions, expire_at = PermAccountUtil().validate_permission(
+            user, asset, account_username=account
+        )
+        if not actions:
+            error = ''
+            raise PermissionDenied(error)
+
+        if expire_at < time.time():
+            error = ''
             raise PermissionDenied(error)
 
     def get_smart_endpoint(self, protocol, asset=None, application=None):
@@ -69,13 +78,12 @@ class ConnectionTokenMixin:
         return true_value if is_true(os.getenv(env_key, env_default)) else false_value
 
     def get_client_protocol_data(self, token: ConnectionToken):
-        from assets.models import SystemUser
-        protocol = token.system_user.protocol
+        protocol = token.protocol
         username = token.user.username
         rdp_config = ssh_token = ''
-        if protocol == SystemUser.Protocol.rdp:
+        if protocol == 'rdp':
             filename, rdp_config = self.get_rdp_file_info(token)
-        elif protocol == SystemUser.Protocol.ssh:
+        elif protocol == 'ssh':
             filename, ssh_token = self.get_ssh_token(token)
         else:
             raise ValueError('Protocol not support: {}'.format(protocol))
@@ -134,15 +142,12 @@ class ConnectionTokenMixin:
         rdp_options['screen mode id:i'] = '2' if full_screen else '1'
 
         # 设置 RDP Server 地址
-        endpoint = self.get_smart_endpoint(
-            protocol='rdp', asset=token.asset, application=token.application
-        )
+        endpoint = self.get_smart_endpoint(protocol='rdp', asset=token.asset)
         rdp_options['full address:s'] = f'{endpoint.host}:{endpoint.rdp_port}'
 
         # 设置用户名
         rdp_options['username:s'] = '{}|{}'.format(token.user.username, str(token.id))
-        if token.system_user.ad_domain:
-            rdp_options['domain:s'] = token.system_user.ad_domain
+        # rdp_options['domain:s'] = token.account_ad_domain
 
         # 设置宽高
         height = self.request.query_params.get('height')
@@ -158,13 +163,12 @@ class ConnectionTokenMixin:
 
         if token.asset:
             name = token.asset.name
-        elif token.application and token.application.category_remote_app:
-            app = '||jmservisor'
-            name = token.application.name
-            rdp_options['remoteapplicationmode:i'] = '1'
-            rdp_options['alternate shell:s'] = app
-            rdp_options['remoteapplicationprogram:s'] = app
-            rdp_options['remoteapplicationname:s'] = name
+            # remote-app
+            # app = '||jmservisor'
+            # rdp_options['remoteapplicationmode:i'] = '1'
+            # rdp_options['alternate shell:s'] = app
+            # rdp_options['remoteapplicationprogram:s'] = app
+            # rdp_options['remoteapplicationname:s'] = name
         else:
             name = '*'
         prefix_name = f'{token.user.username}-{name}'
@@ -188,16 +192,12 @@ class ConnectionTokenMixin:
     def get_ssh_token(self, token: ConnectionToken):
         if token.asset:
             name = token.asset.name
-        elif token.application:
-            name = token.application.name
         else:
             name = '*'
         prefix_name = f'{token.user.username}-{name}'
         filename = self.get_connect_filename(prefix_name)
 
-        endpoint = self.get_smart_endpoint(
-            protocol='ssh', asset=token.asset, application=token.application
-        )
+        endpoint = self.get_smart_endpoint(protocol='ssh', asset=token.asset)
         data = {
             'ip': endpoint.host,
             'port': str(endpoint.ssh_port),
@@ -251,8 +251,8 @@ class ConnectionTokenViewSet(ConnectionTokenMixin, RootOrgViewMixin, JMSModelVie
         return token
 
     def perform_create(self, serializer):
-        user, asset, application, system_user = self.get_request_resources(serializer)
-        self.check_user_has_resource_permission(user, asset, application, system_user)
+        user, asset, account = self.get_request_resources(serializer)
+        self.check_user_has_resource_permission(user, asset, account)
         return super(ConnectionTokenViewSet, self).perform_create(serializer)
 
     @action(methods=['POST'], detail=False, url_path='secret-info/detail')
@@ -264,7 +264,6 @@ class ConnectionTokenViewSet(ConnectionTokenMixin, RootOrgViewMixin, JMSModelVie
         token_id = request.data.get('token') or ''
         token = get_object_or_404(ConnectionToken, pk=token_id)
         self.check_token_valid(token)
-        token.load_system_user_auth()
         serializer = self.get_serializer(instance=token)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
diff --git a/apps/authentication/models.py b/apps/authentication/models.py
index 765f38ef9..2ec71451f 100644
--- a/apps/authentication/models.py
+++ b/apps/authentication/models.py
@@ -1,3 +1,4 @@
+import time
 import uuid
 from datetime import datetime, timedelta
 from django.utils import timezone
@@ -63,22 +64,20 @@ def date_expired_default():
 
 
 class ConnectionToken(OrgModelMixin, JMSBaseModel):
-    secret = models.CharField(max_length=64, default='', verbose_name=_("Secret"))
-    date_expired = models.DateTimeField(
-        default=date_expired_default, verbose_name=_("Date expired")
-    )
-
     user = models.ForeignKey(
-        'users.User', on_delete=models.SET_NULL, verbose_name=_('User'),
-        related_name='connection_tokens', null=True, blank=True
+        'users.User', on_delete=models.SET_NULL,  null=True, blank=True,
+        related_name='connection_tokens', verbose_name=_('User')
+    )
+    asset = models.ForeignKey(
+        'assets.Asset', on_delete=models.SET_NULL, null=True, blank=True,
+        related_name='connection_tokens', verbose_name=_('Asset'),
     )
     user_display = models.CharField(max_length=128, default='', verbose_name=_("User display"))
-    asset = models.ForeignKey(
-        'assets.Asset', on_delete=models.SET_NULL, verbose_name=_('Asset'),
-        related_name='connection_tokens', null=True, blank=True
-    )
     asset_display = models.CharField(max_length=128, default='', verbose_name=_("Asset display"))
+    protocol = ''
     account = models.CharField(max_length=128, default='', verbose_name=_("Account"))
+    secret = models.CharField(max_length=64, default='', verbose_name=_("Secret"))
+    date_expired = models.DateTimeField(default=date_expired_default, verbose_name=_("Date expired"))
 
     class Meta:
         ordering = ('-date_expired',)
@@ -87,10 +86,6 @@ class ConnectionToken(OrgModelMixin, JMSBaseModel):
             ('view_connectiontokensecret', _('Can view connection token secret'))
         ]
 
-    @classmethod
-    def get_default_date_expired(cls):
-        return date_expired_default()
-
     @property
     def is_expired(self):
         return self.date_expired < timezone.now()
@@ -103,32 +98,32 @@ class ConnectionToken(OrgModelMixin, JMSBaseModel):
             seconds = 0
         return int(seconds)
 
-    def expire(self):
-        self.date_expired = timezone.now()
-        self.save()
-
     @property
     def is_valid(self):
         return not self.is_expired
 
-    def is_type(self, tp):
-        return self.type == tp
+    @classmethod
+    def get_default_date_expired(cls):
+        return date_expired_default()
+
+    def expire(self):
+        self.date_expired = timezone.now()
+        self.save()
 
     def renewal(self):
         """ 续期 Token，将来支持用户自定义创建 token 后，续期策略要修改 """
         self.date_expired = self.get_default_date_expired()
         self.save()
 
-    actions = expired_at = None  # actions 和 expired_at 在 check_valid() 中赋值
+    # actions 和 expired_at 在 check_valid() 中赋值
+    actions = expire_at = None
 
     def check_valid(self):
-        from perms.utils.permission import validate_permission as asset_validate_permission
-
+        from perms.utils.account import PermAccountUtil
         if self.is_expired:
             is_valid = False
             error = _('Connection token expired at: {}').format(as_current_tz(self.date_expired))
             return is_valid, error
-
         if not self.user:
             is_valid = False
             error = _('User not exists')
@@ -137,44 +132,33 @@ class ConnectionToken(OrgModelMixin, JMSBaseModel):
             is_valid = False
             error = _('User invalid, disabled or expired')
             return is_valid, error
-
+        if not self.asset:
+            is_valid = False
+            error = _('Asset not exists')
+            return is_valid, error
+        if not self.asset.is_active:
+            is_valid = False
+            error = _('Asset inactive')
+            return is_valid, error
         if not self.account:
             is_valid = False
             error = _('Account not exists')
             return is_valid, error
 
-        if not self.asset:
-            is_valid = False
-            error = _('Asset not exists')
-            return is_valid, error
-
-        if not self.asset.is_active:
-            is_valid = False
-            error = _('Asset inactive')
-            return is_valid, error
-
-        has_perm, actions, expired_at = asset_validate_permission(
+        actions, expire_at = PermAccountUtil().validate_permission(
             self.user, self.asset, self.account
         )
-        if not has_perm:
+        if not actions or expire_at < time.time():
             is_valid = False
             error = _('User has no permission to access asset or permission expired')
             return is_valid, error
         self.actions = actions
-        self.expired_at = expired_at
+        self.expire_at = expire_at
         return True, ''
 
     @lazyproperty
     def domain(self):
-        if self.asset:
-            return self.asset.domain
-        if not self.application:
-            return
-        if self.application.category_remote_app:
-            asset = self.application.get_remote_app_asset()
-            domain = asset.domain if asset else None
-        else:
-            domain = self.application.domain
+        domain = self.asset.domain if self.asset else None
         return domain
 
     @lazyproperty
@@ -185,41 +169,18 @@ class ConnectionToken(OrgModelMixin, JMSBaseModel):
         self.domain: Domain
         return self.domain.random_gateway()
 
-    @lazyproperty
-    def remote_app(self):
-        if not self.application:
-            return {}
-        if not self.application.category_remote_app:
-            return {}
-        return self.application.get_rdp_remote_app_setting()
-
-    @lazyproperty
-    def asset_or_remote_app_asset(self):
-        if self.asset:
-            return self.asset
-        if self.application and self.application.category_remote_app:
-            return self.application.get_remote_app_asset()
-
     @lazyproperty
     def cmd_filter_rules(self):
         from assets.models import CommandFilterRule
         kwargs = {
             'user_id': self.user.id,
-            'system_user_id': self.system_user.id,
+            'account': self.account,
         }
         if self.asset:
             kwargs['asset_id'] = self.asset.id
-        elif self.application:
-            kwargs['application_id'] = self.application_id
         rules = CommandFilterRule.get_queryset(**kwargs)
         return rules
 
-    def load_system_user_auth(self):
-        if self.asset:
-            self.system_user.load_asset_more_auth(self.asset.id, self.user.username, self.user.id)
-        elif self.application:
-            self.system_user.load_app_more_auth(self.application.id, self.user.username, self.user.id)
-
 
 class TempToken(JMSBaseModel):
     username = models.CharField(max_length=128, verbose_name=_("Username"))
diff --git a/apps/authentication/serializers/connection_token.py b/apps/authentication/serializers/connection_token.py
index 0905d5c60..03df575ba 100644
--- a/apps/authentication/serializers/connection_token.py
+++ b/apps/authentication/serializers/connection_token.py
@@ -165,6 +165,6 @@ class ConnectionTokenSecretSerializer(OrgResourceModelSerializerMixin):
     class Meta:
         model = ConnectionToken
         fields = [
-            'id', 'secret', 'type', 'user', 'asset', 'application', 'system_user',
-            'remote_app', 'cmd_filter_rules', 'domain', 'gateway', 'actions', 'expired_at',
+            'id', 'secret', 'type', 'user', 'asset', 'account',
+            'cmd_filter_rules', 'domain', 'gateway', 'actions', 'expired_at',
         ]
diff --git a/apps/perms/api/user_permission/common.py b/apps/perms/api/user_permission/common.py
index ebcbcf3e6..927ec7443 100644
--- a/apps/perms/api/user_permission/common.py
+++ b/apps/perms/api/user_permission/common.py
@@ -1,34 +1,20 @@
 # -*- coding: utf-8 -*-
 #
-import uuid
-import time
-from collections import defaultdict
-
 from django.shortcuts import get_object_or_404
-from django.utils.decorators import method_decorator
-from rest_framework.views import APIView, Response
-from rest_framework import status
 from rest_framework.generics import (
-    ListAPIView, get_object_or_404, RetrieveAPIView
-)
-
-from orgs.utils import tmp_to_root_org
-from perms.utils.permission import (
-    get_asset_system_user_ids_with_actions_by_user, validate_permission
+    ListAPIView, get_object_or_404
 )
 from common.permissions import IsValidUser
 from common.utils import get_logger, lazyproperty
 
 from perms.hands import User, Asset, Account
 from perms import serializers
-from perms.models import AssetPermission, Action
+from perms.models import Action
 from perms.utils import PermAccountUtil
 
 logger = get_logger(__name__)
 
 __all__ = [
-    'ValidateUserAssetPermissionApi',
-    'GetUserAssetPermissionActionsApi',
     'UserGrantedAssetAccountsApi',
     'MyGrantedAssetAccountsApi',
     'UserGrantedAssetSpecialAccountsApi',
@@ -36,70 +22,6 @@ __all__ = [
 ]
 
 
-@method_decorator(tmp_to_root_org(), name='get')
-class GetUserAssetPermissionActionsApi(RetrieveAPIView):
-    serializer_class = serializers.ActionsSerializer
-    rbac_perms = {
-        'retrieve': 'perms.view_userassets',
-        'GET': 'perms.view_userassets',
-    }
-
-    def get_user(self):
-        user_id = self.request.query_params.get('user_id', '')
-        user = get_object_or_404(User, id=user_id)
-        return user
-
-    def get_object(self):
-        asset_id = self.request.query_params.get('asset_id', '')
-        account = self.request.query_params.get('account', '')
-
-        try:
-            asset_id = uuid.UUID(asset_id)
-        except ValueError:
-            return Response({'msg': False}, status=403)
-
-        asset = get_object_or_404(Asset, id=asset_id)
-
-        system_users_actions = get_asset_system_user_ids_with_actions_by_user(self.get_user(), asset)
-        # actions = system_users_actions.get(system_user.id)
-        actions = system_users_actions.get(account)
-        return {"actions": actions}
-
-
-@method_decorator(tmp_to_root_org(), name='get')
-class ValidateUserAssetPermissionApi(APIView):
-    rbac_perms = {
-        'GET': 'perms.view_userassets'
-    }
-
-    def get(self, request, *args, **kwargs):
-        user_id = self.request.query_params.get('user_id', '')
-        asset_id = request.query_params.get('asset_id', '')
-        account = request.query_params.get('account', '')
-        action_name = request.query_params.get('action_name', '')
-
-        data = {
-            'has_permission': False,
-            'expire_at': int(time.time()),
-            'actions': []
-        }
-
-        if not all((user_id, asset_id, account, action_name)):
-            return Response(data)
-
-        user = User.objects.get(id=user_id)
-        asset = Asset.objects.valid().get(id=asset_id)
-
-        has_perm, actions, expire_at = validate_permission(user, asset, account, action_name)
-        status_code = status.HTTP_200_OK if has_perm else status.HTTP_403_FORBIDDEN
-        data = {
-            'has_permission': has_perm,
-            'actions': actions,
-            'expire_at': int(expire_at)
-        }
-        return Response(data, status=status_code)
-
-
 class UserGrantedAssetAccountsApi(ListAPIView):
     serializer_class = serializers.AccountsGrantedSerializer
     rbac_perms = {
diff --git a/apps/perms/urls/asset_permission.py b/apps/perms/urls/asset_permission.py
index cc8e10f36..a97727550 100644
--- a/apps/perms/urls/asset_permission.py
+++ b/apps/perms/urls/asset_permission.py
@@ -84,12 +84,6 @@ permission_urlpatterns = [
     # 授权规则中授权的资产
     path('<uuid:pk>/assets/all/', api.AssetPermissionAllAssetListApi.as_view(), name='asset-permission-all-assets'),
     path('<uuid:pk>/users/all/', api.AssetPermissionAllUserListApi.as_view(), name='asset-permission-all-users'),
-
-    # 验证用户是否有某个资产和系统用户的权限
-    # Todo: v3 先不动, 可能会修改连接资产时的逻辑, 直接获取认证信息，获取不到就时没有权限，就不需要校验了
-    path('user/validate/', api.ValidateUserAssetPermissionApi.as_view(), name='validate-user-asset-permission'),
-    path('user/actions/', api.GetUserAssetPermissionActionsApi.as_view(), name='get-user-asset-permission-actions'),
-
 ]
 
 asset_permission_urlpatterns = [
diff --git a/apps/perms/utils/account.py b/apps/perms/utils/account.py
index a5fdadc6b..34b839fab 100644
--- a/apps/perms/utils/account.py
+++ b/apps/perms/utils/account.py
@@ -1,3 +1,4 @@
+import time
 from collections import defaultdict
 from assets.models import Account
 from .permission import AssetPermissionUtil
@@ -8,25 +9,29 @@ __all__ = ['PermAccountUtil']
 class PermAccountUtil(AssetPermissionUtil):
     """ 资产授权账号相关的工具 """
 
-    def get_perm_accounts_for_user_asset(self, user, asset, with_actions=False):
-        """ 获取授权给用户某个资产的账号 """
-        perms = self.get_permissions_for_user_asset(user, asset)
-        accounts = self.get_perm_accounts_for_permissions(perms, with_actions=with_actions)
-        return accounts
-
     def get_perm_accounts_for_user(self, user, with_actions=False):
         """ 获取授权给用户的所有账号 """
         perms = self.get_permissions_for_user(user)
         accounts = self.get_perm_accounts_for_permissions(perms, with_actions=with_actions)
         return accounts
 
+    def get_perm_accounts_for_user_asset(self, user, asset, with_actions=False, with_perms=False):
+        """ 获取授权给用户某个资产的账号 """
+        perms = self.get_permissions_for_user_asset(user, asset)
+        accounts = self.get_perm_accounts_for_permissions(perms, with_actions=with_actions)
+        if with_perms:
+            return perms, accounts
+        return accounts
+
     def get_perm_accounts_for_user_group_asset(self, user_group, asset, with_actions=False):
+        """ 获取授权给用户组某个资产的账号 """
         perms = self.get_permissions_for_user_group_asset(user_group, asset)
         accounts = self.get_perm_accounts_for_permissions(perms, with_actions=with_actions)
         return accounts
 
     @staticmethod
     def get_perm_accounts_for_permissions(permissions, with_actions=False):
+        """ 获取授权规则包含的账号 """
         aid_actions_map = defaultdict(int)
         for perm in permissions:
             account_ids = perm.get_all_accounts(flat=True)
@@ -40,3 +45,14 @@ class PermAccountUtil(AssetPermissionUtil):
                 account.actions = aid_actions_map.get(str(account.id))
         return accounts
 
+    def validate_permission(self, user, asset, account_username):
+        """ 校验用户有某个资产下某个账号名的权限 """
+        perms, accounts = self.get_perm_accounts_for_user_asset(
+            user, asset, with_actions=True, with_perms=True
+        )
+        perm = perms.first()
+        # Todo: 后面可能需要加上 protocol 进行过滤, 因为同名的账号协议是不一样可能会存在多个
+        account = accounts.filter(username=account_username).first()
+        actions = account.actions if account else []
+        expire_at = perm.date_expired if perm else time.time()
+        return actions, expire_at
diff --git a/apps/perms/utils/permission.py b/apps/perms/utils/permission.py
index b16c69fa0..e7d88e06d 100644
--- a/apps/perms/utils/permission.py
+++ b/apps/perms/utils/permission.py
@@ -14,21 +14,6 @@ logger = get_logger(__file__)
 class AssetPermissionUtil(object):
     """ 资产授权相关的方法工具 """
 
-    def get_permissions_for_user_asset(self, user, asset):
-        """ 获取同时包含用户、资产的授权规则 """
-        user_perm_ids = self.get_permissions_for_user(user, flat=True)
-        asset_perm_ids = self.get_permissions_for_asset(asset, flat=True)
-        perm_ids = set(user_perm_ids) & set(asset_perm_ids)
-        perms = AssetPermission.objects.filter(id__in=perm_ids)
-        return perms
-
-    def get_permissions_for_user_group_asset(self, user_group, asset):
-        user_perm_ids = self.get_permissions_for_user_groups([user_group], flat=True)
-        asset_perm_ids = self.get_permissions_for_asset(asset, flat=True)
-        perm_ids = set(user_perm_ids) & set(asset_perm_ids)
-        perms = AssetPermission.objects.filter(id__in=perm_ids)
-        return perms
-
     def get_permissions_for_user(self, user, with_group=True, flat=False):
         """ 获取用户的授权规则 """
         perm_ids = set()
@@ -43,22 +28,21 @@ class AssetPermissionUtil(object):
             perm_ids.update(group_perm_ids)
         if flat:
             return perm_ids
-        perms = AssetPermission.objects.filter(id__in=perm_ids)
+        perms = self.get_permissions(ids=perm_ids)
         return perms
 
-    @staticmethod
-    def get_permissions_for_user_groups(user_groups, flat=False):
+    def get_permissions_for_user_groups(self, user_groups, flat=False):
         """ 获取用户组的授权规则 """
         if isinstance(user_groups, list):
             group_ids = [g.id for g in user_groups]
         else:
             group_ids = user_groups.values_list('id', flat=True).distinct()
-        group_perm_ids = AssetPermission.user_groups.through.objects\
-            .filter(usergroup_id__in=group_ids)\
+        group_perm_ids = AssetPermission.user_groups.through.objects \
+            .filter(usergroup_id__in=group_ids) \
             .values_list('assetpermission_id', flat=True).distinct()
         if flat:
             return group_perm_ids
-        perms = AssetPermission.objects.filter(id__in=group_perm_ids)
+        perms = self.get_permissions(ids=group_perm_ids)
         return perms
 
     def get_permissions_for_asset(self, asset, with_node=True, flat=False):
@@ -73,11 +57,10 @@ class AssetPermissionUtil(object):
             perm_ids.update(node_perm_ids)
         if flat:
             return perm_ids
-        perms = AssetPermission.objects.filter(id__in=perm_ids)
+        perms = self.get_permissions(ids=perm_ids)
         return perms
 
-    @staticmethod
-    def get_permissions_for_nodes(nodes, with_ancestor=False, flat=False):
+    def get_permissions_for_nodes(self, nodes, with_ancestor=False, flat=False):
         """ 获取节点的授权规则 """
         if with_ancestor:
             node_ids = set()
@@ -87,93 +70,29 @@ class AssetPermissionUtil(object):
                 node_ids.update(_node_ids)
         else:
             node_ids = nodes.values_list('id', flat=True).distinct()
-        node_perm_ids = AssetPermission.nodes.through.objects.filter(node_id__in=node_ids) \
+        perm_ids = AssetPermission.nodes.through.objects.filter(node_id__in=node_ids) \
             .values_list('assetpermission_id', flat=True).distinct()
         if flat:
-            return node_perm_ids
-        perms = AssetPermission.objects.filter(id__in=node_perm_ids)
+            return perm_ids
+        perms = self.get_permissions(ids=perm_ids)
         return perms
 
+    def get_permissions_for_user_asset(self, user, asset):
+        """ 获取同时包含用户、资产的授权规则 """
+        user_perm_ids = self.get_permissions_for_user(user, flat=True)
+        asset_perm_ids = self.get_permissions_for_asset(asset, flat=True)
+        perm_ids = set(user_perm_ids) & set(asset_perm_ids)
+        perms = self.get_permissions(ids=perm_ids)
+        return perms
 
-# TODO: 下面的方法放到类中进行实现
-
-
-def validate_permission(user, asset, account, action='connect'):
-    asset_perm_ids = get_user_all_asset_perm_ids(user)
-
-    asset_perm_ids_from_asset = AssetPermission.assets.through.objects.filter(
-        assetpermission_id__in=asset_perm_ids,
-        asset_id=asset.id
-    ).values_list('assetpermission_id', flat=True)
-
-    nodes = asset.get_nodes()
-    node_keys = set()
-    for node in nodes:
-        ancestor_keys = node.get_ancestor_keys(with_self=True)
-        node_keys.update(ancestor_keys)
-    node_ids = set(Node.objects.filter(key__in=node_keys).values_list('id', flat=True))
-
-    asset_perm_ids_from_node = AssetPermission.nodes.through.objects.filter(
-        assetpermission_id__in=asset_perm_ids,
-        node_id__in=node_ids
-    ).values_list('assetpermission_id', flat=True)
-
-    asset_perm_ids = {*asset_perm_ids_from_asset, *asset_perm_ids_from_node}
-
-    asset_perms = AssetPermission.objects\
-        .filter(id__in=asset_perm_ids, accounts__contains=account)\
-        .order_by('-date_expired')
-
-    if asset_perms:
-        actions = set()
-        actions_values = asset_perms.values_list('actions', flat=True)
-        for value in actions_values:
-            _actions = Action.value_to_choices(value)
-            actions.update(_actions)
-        asset_perm: AssetPermission = asset_perms.first()
-        actions = list(actions)
-        expire_at = asset_perm.date_expired.timestamp()
-    else:
-        actions = []
-        expire_at = time.time()
-
-    # TODO: 组件改造API完成后统一通过actions判断has_perm
-    has_perm = action in actions
-    return has_perm, actions, expire_at
-
-
-def get_asset_system_user_ids_with_actions(asset_perm_ids, asset: Asset):
-    nodes = asset.get_nodes()
-    node_keys = set()
-    for node in nodes:
-        ancestor_keys = node.get_ancestor_keys(with_self=True)
-        node_keys.update(ancestor_keys)
-
-    queryset = AssetPermission.objects.filter(id__in=asset_perm_ids)\
-        .filter(Q(assets=asset) | Q(nodes__key__in=node_keys))
-
-    asset_protocols = asset.protocols_as_dict.keys()
-    values = queryset.filter(
-        system_users__protocol__in=asset_protocols
-    ).distinct().values_list('system_users', 'actions')
-    system_users_actions = defaultdict(int)
-
-    for system_user_id, actions in values:
-        if None in (system_user_id, actions):
-            continue
-        system_users_actions[system_user_id] |= actions
-    return system_users_actions
-
-
-def get_asset_system_user_ids_with_actions_by_user(user: User, asset: Asset):
-    asset_perm_ids = get_user_all_asset_perm_ids(user)
-    return get_asset_system_user_ids_with_actions(asset_perm_ids, asset)
-
-
-def has_asset_system_permission(user: User, asset: Asset, account: str):
-    systemuser_actions_mapper = get_asset_system_user_ids_with_actions_by_user(user, asset)
-    actions = systemuser_actions_mapper.get(account, 0)
-    if actions:
-        return True
-    return False
+    def get_permissions_for_user_group_asset(self, user_group, asset):
+        user_perm_ids = self.get_permissions_for_user_groups([user_group], flat=True)
+        asset_perm_ids = self.get_permissions_for_asset(asset, flat=True)
+        perm_ids = set(user_perm_ids) & set(asset_perm_ids)
+        perms = self.get_permissions(ids=perm_ids)
+        return perms
 
+    @staticmethod
+    def get_permissions(ids):
+        perms = AssetPermission.objects.filter(id__in=ids).order_by('-date_expired')
+        return perms