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jumpserver/apps/assets/models/user.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
import logging
from django.db import models
from django.db.models import Q
from django.utils.translation import ugettext_lazy as _
from django.core.validators import MinValueValidator, MaxValueValidator
from django.core.cache import cache
from common.utils import signer, get_object_or_none
from common.db.models import TextChoices
from .base import BaseUser
from .asset import Asset
from .authbook import AuthBook
__all__ = ['AdminUser', 'SystemUser']
logger = logging.getLogger(__name__)
class ProtocolMixin:
protocol: str
class Protocol(TextChoices):
ssh = 'ssh', 'SSH'
rdp = 'rdp', 'RDP'
telnet = 'telnet', 'Telnet'
vnc = 'vnc', 'VNC'
mysql = 'mysql', 'MySQL'
redis = 'redis', 'Redis'
oracle = 'oracle', 'Oracle'
mariadb = 'mariadb', 'MariaDB'
postgresql = 'postgresql', 'PostgreSQL'
sqlserver = 'sqlserver', 'SQLServer'
k8s = 'k8s', 'K8S'
SUPPORT_PUSH_PROTOCOLS = [Protocol.ssh, Protocol.rdp]
ASSET_CATEGORY_PROTOCOLS = [
Protocol.ssh, Protocol.rdp, Protocol.telnet, Protocol.vnc
]
APPLICATION_CATEGORY_REMOTE_APP_PROTOCOLS = [
Protocol.rdp
]
APPLICATION_CATEGORY_DB_PROTOCOLS = [
Protocol.mysql, Protocol.redis, Protocol.oracle,
Protocol.mariadb, Protocol.postgresql, Protocol.sqlserver
]
APPLICATION_CATEGORY_CLOUD_PROTOCOLS = [
Protocol.k8s
]
APPLICATION_CATEGORY_PROTOCOLS = [
*APPLICATION_CATEGORY_REMOTE_APP_PROTOCOLS,
*APPLICATION_CATEGORY_DB_PROTOCOLS,
*APPLICATION_CATEGORY_CLOUD_PROTOCOLS
]
@property
def is_protocol_support_push(self):
return self.protocol in self.SUPPORT_PUSH_PROTOCOLS
@classmethod
def get_protocol_by_application_type(cls, app_type):
from applications.const import AppType
if app_type in cls.APPLICATION_CATEGORY_PROTOCOLS:
protocol = app_type
elif app_type in AppType.remote_app_types():
protocol = cls.Protocol.rdp
else:
protocol = None
return protocol
@property
def can_perm_to_asset(self):
return self.protocol in self.ASSET_CATEGORY_PROTOCOLS
@property
def is_asset_protocol(self):
return self.protocol in self.ASSET_CATEGORY_PROTOCOLS
class AuthMixin:
username_same_with_user: bool
protocol: str
ASSET_CATEGORY_PROTOCOLS: list
login_mode: str
LOGIN_MANUAL: str
id: str
username: str
password: str
private_key: str
public_key: str
def set_temp_auth(self, asset_or_app_id, user_id, auth, ttl=300):
if not auth:
raise ValueError('Auth not set')
key = 'TEMP_PASSWORD_{}_{}_{}'.format(self.id, asset_or_app_id, user_id)
logger.debug(f'Set system user temp auth: {key}')
cache.set(key, auth, ttl)
def get_temp_auth(self, asset_or_app_id, user_id):
key = 'TEMP_PASSWORD_{}_{}_{}'.format(self.id, asset_or_app_id, user_id)
logger.debug(f'Get system user temp auth: {key}')
password = cache.get(key)
return password
def _clean_auth_info_if_manual_login_mode(self):
if self.login_mode == self.LOGIN_MANUAL:
self.password = ''
self.private_key = ''
self.public_key = ''
def _load_tmp_auth_if_has(self, asset_or_app_id, user_id):
if self.login_mode != self.LOGIN_MANUAL:
return
if not asset_or_app_id or not user_id:
return
auth = self.get_temp_auth(asset_or_app_id, user_id)
if not auth:
return
username = auth.get('username')
password = auth.get('password')
if username:
self.username = username
if password:
self.password = password
def load_app_more_auth(self, app_id=None, username=None, user_id=None):
self._clean_auth_info_if_manual_login_mode()
# 加载临时认证信息
if self.login_mode == self.LOGIN_MANUAL:
self._load_tmp_auth_if_has(app_id, user_id)
return
# 更新用户名
from users.models import User
user = get_object_or_none(User, pk=user_id) if user_id else None
if self.username_same_with_user:
if user and not username:
_username = user.username
else:
_username = username
self.username = _username
def load_asset_special_auth(self, asset, username=''):
"""
AuthBook 的数据状态
| asset | systemuser | username |
1 | * | * | x |
2 | * | x | * |
当前 AuthBook 只有以上两种状态systemuser 与 username 不会并存。
正常的资产与系统用户关联产生的是第1种状态改密则产生第2种状态。改密之后
只有 username 而没有 systemuser 。
Freq: 关联同一资产的多个系统用户指定同一用户名时,修改用户密码会影响所有系统用户
这里有一个不对称的行为,同名系统用户密码覆盖
当有相同 username 的多个系统用户时,有改密动作之后,所有的同名系统用户都使用最后
一次改动,但如果没有发生过改密,同名系统用户使用的密码还是各自的。
"""
if username == '':
username = self.username
authbook = AuthBook.objects.filter(
asset=asset, username=username, systemuser__isnull=True
).order_by('-date_created').first()
if not authbook:
authbook = AuthBook.objects.filter(
asset=asset, systemuser=self
).order_by('-date_created').first()
if not authbook:
return None
authbook.load_auth()
self.password = authbook.password
self.private_key = authbook.private_key
self.public_key = authbook.public_key
def load_asset_more_auth(self, asset_id=None, username=None, user_id=None):
from users.models import User
self._clean_auth_info_if_manual_login_mode()
# 加载临时认证信息
if self.login_mode == self.LOGIN_MANUAL:
self._load_tmp_auth_if_has(asset_id, user_id)
return
# 更新用户名
user = get_object_or_none(User, pk=user_id) if user_id else None
if self.username_same_with_user:
if user and not username:
_username = user.username
else:
_username = username
self.username = _username
# 加载某个资产的特殊配置认证信息
asset = get_object_or_none(Asset, pk=asset_id) if asset_id else None
if not asset:
logger.debug('Asset not found, pass')
return
self.load_asset_special_auth(asset, self.username)
class SystemUser(ProtocolMixin, AuthMixin, BaseUser):
LOGIN_AUTO = 'auto'
LOGIN_MANUAL = 'manual'
LOGIN_MODE_CHOICES = (
(LOGIN_AUTO, _('Automatic managed')),
(LOGIN_MANUAL, _('Manually input'))
)
class Type(TextChoices):
common = 'common', _('Common user')
admin = 'admin', _('Admin user')
username_same_with_user = models.BooleanField(default=False, verbose_name=_("Username same with user"))
nodes = models.ManyToManyField('assets.Node', blank=True, verbose_name=_("Nodes"))
assets = models.ManyToManyField(
'assets.Asset', blank=True, verbose_name=_("Assets"),
through='assets.AuthBook', through_fields=['systemuser', 'asset'],
related_name='system_users'
)
users = models.ManyToManyField('users.User', blank=True, verbose_name=_("Users"))
groups = models.ManyToManyField('users.UserGroup', blank=True, verbose_name=_("User groups"))
type = models.CharField(max_length=16, choices=Type.choices, default=Type.common, verbose_name=_('Type'))
priority = models.IntegerField(default=81, verbose_name=_("Priority"), help_text=_("1-100, the lower the value will be match first"), validators=[MinValueValidator(1), MaxValueValidator(100)])
protocol = models.CharField(max_length=16, choices=ProtocolMixin.Protocol.choices, default='ssh', verbose_name=_('Protocol'))
auto_push = models.BooleanField(default=True, verbose_name=_('Auto push'))
sudo = models.TextField(default='/bin/whoami', verbose_name=_('Sudo'))
shell = models.CharField(max_length=64, default='/bin/bash', verbose_name=_('Shell'))
login_mode = models.CharField(choices=LOGIN_MODE_CHOICES, default=LOGIN_AUTO, max_length=10, verbose_name=_('Login mode'))
sftp_root = models.CharField(default='tmp', max_length=128, verbose_name=_("SFTP Root"))
token = models.TextField(default='', verbose_name=_('Token'))
home = models.CharField(max_length=4096, default='', verbose_name=_('Home'), blank=True)
system_groups = models.CharField(default='', max_length=4096, verbose_name=_('System groups'), blank=True)
ad_domain = models.CharField(default='', max_length=256)
# linux su 命令 (switch user)
su_enabled = models.BooleanField(default=False, verbose_name=_('User switch'))
su_from = models.ForeignKey('self', on_delete=models.SET_NULL, related_name='su_to', null=True, verbose_name=_("Switch from"))
def __str__(self):
username = self.username
if self.username_same_with_user:
username = '*'
return '{0.name}({1})'.format(self, username)
@property
def nodes_amount(self):
return self.nodes.all().count()
@property
def login_mode_display(self):
return self.get_login_mode_display()
def is_need_push(self):
if self.auto_push and self.is_protocol_support_push:
return True
else:
return False
@property
def is_admin_user(self):
return self.type == self.Type.admin
@property
def is_need_cmd_filter(self):
return self.protocol not in [self.Protocol.rdp, self.Protocol.vnc]
@property
def is_need_test_asset_connective(self):
return self.protocol in self.ASSET_CATEGORY_PROTOCOLS
@property
def cmd_filter_rules(self):
from .cmd_filter import CommandFilterRule
rules = CommandFilterRule.objects.filter(
filter__in=self.cmd_filters.all()
).distinct()
return rules
def is_command_can_run(self, command):
for rule in self.cmd_filter_rules:
action, matched_cmd = rule.match(command)
if action == rule.ActionChoices.allow:
return True, None
elif action == rule.ActionChoices.deny:
return False, matched_cmd
return True, None
def get_all_assets(self):
from assets.models import Node
nodes_keys = self.nodes.all().values_list('key', flat=True)
asset_ids = set(self.assets.all().values_list('id', flat=True))
nodes_asset_ids = Node.get_nodes_all_asset_ids_by_keys(nodes_keys)
asset_ids.update(nodes_asset_ids)
assets = Asset.objects.filter(id__in=asset_ids)
return assets
def add_related_assets(self, assets_or_ids):
self.assets.add(*tuple(assets_or_ids))
self.add_related_assets_to_su_from_if_need(assets_or_ids)
def add_related_assets_to_su_from_if_need(self, assets_or_ids):
if self.protocol not in [self.Protocol.ssh.value]:
return
if not self.su_enabled:
return
if not self.su_from:
return
if self.su_from.protocol != self.protocol:
return
self.su_from.assets.add(*tuple(assets_or_ids))
class Meta:
ordering = ['name']
unique_together = [('name', 'org_id')]
verbose_name = _("System user")
# Deprecated: 准备废弃
class AdminUser(BaseUser):
"""
A privileged user that ansible can use it to push system user and so on
"""
BECOME_METHOD_CHOICES = (
('sudo', 'sudo'),
('su', 'su'),
)
become = models.BooleanField(default=True)
become_method = models.CharField(choices=BECOME_METHOD_CHOICES, default='sudo', max_length=4)
become_user = models.CharField(default='root', max_length=64)
_become_pass = models.CharField(default='', blank=True, max_length=128)
CONNECTIVITY_CACHE_KEY = '_ADMIN_USER_CONNECTIVE_{}'
_prefer = "admin_user"
def __str__(self):
return self.name
@property
def become_pass(self):
password = signer.unsign(self._become_pass)
if password:
return password
else:
return ""
@become_pass.setter
def become_pass(self, password):
self._become_pass = signer.sign(password)
@property
def become_info(self):
if self.become:
info = {
"method": self.become_method,
"user": self.become_user,
"pass": self.become_pass,
}
else:
info = None
return info
class Meta:
ordering = ['name']
unique_together = [('name', 'org_id')]
verbose_name = _("Admin user")