jumpserver/apps/assets/serializers/system_user.py

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from rest_framework import serializers
from django.utils.translation import ugettext_lazy as _
from django.db.models import Count
from common.mixins.serializers import BulkSerializerMixin
from common.utils import ssh_pubkey_gen
from common.drf.fields import EncryptedField
from common.drf.serializers import SecretReadableMixin
from common.validators import alphanumeric_re, alphanumeric_cn_re, alphanumeric_win_re
from orgs.mixins.serializers import BulkOrgResourceModelSerializer
from ..models import SystemUser, Asset
from .utils import validate_password_for_ansible
from .base import AuthSerializerMixin
__all__ = [
'SystemUserSerializer', 'MiniSystemUserSerializer',
'SystemUserSimpleSerializer', 'SystemUserAssetRelationSerializer',
'SystemUserNodeRelationSerializer', 'SystemUserTaskSerializer',
'SystemUserUserRelationSerializer', 'SystemUserWithAuthInfoSerializer',
'SystemUserTempAuthSerializer', 'RelationMixin',
]
class SystemUserSerializer(AuthSerializerMixin, BulkOrgResourceModelSerializer):
"""
系统用户
"""
password = EncryptedField(
label=_('Password'), required=False, allow_blank=True, allow_null=True, max_length=1024,
trim_whitespace=False, validators=[validate_password_for_ansible],
write_only=True
)
auto_generate_key = serializers.BooleanField(initial=True, required=False, write_only=True)
type_display = serializers.ReadOnlyField(source='get_type_display', label=_('Type display'))
ssh_key_fingerprint = serializers.ReadOnlyField(label=_('SSH key fingerprint'))
token = EncryptedField(
label=_('Token'), required=False, write_only=True, style={'base_template': 'textarea.html'}
)
applications_amount = serializers.IntegerField(
source='apps_amount', read_only=True, label=_('Apps amount')
)
class Meta:
model = SystemUser
fields_mini = ['id', 'name', 'username']
fields_write_only = ['password', 'public_key', 'private_key', 'passphrase']
fields_small = fields_mini + fields_write_only + [
'token', 'ssh_key_fingerprint',
'type', 'type_display', 'protocol', 'is_asset_protocol',
'login_mode', 'login_mode_display', 'priority',
'sudo', 'shell', 'sftp_root', 'home', 'system_groups', 'ad_domain',
'username_same_with_user', 'auto_push', 'auto_generate_key',
'su_enabled', 'su_from',
'date_created', 'date_updated', 'comment', 'created_by',
]
fields_m2m = ['cmd_filters', 'assets_amount', 'applications_amount', 'nodes']
fields = fields_small + fields_m2m
extra_kwargs = {
'cmd_filters': {"required": False, 'label': _('Command filter')},
'public_key': {"write_only": True},
'private_key': {"write_only": True},
'nodes_amount': {'label': _('Nodes amount')},
'assets_amount': {'label': _('Assets amount')},
'login_mode_display': {'label': _('Login mode display')},
'created_by': {'read_only': True},
'ad_domain': {'required': False, 'allow_blank': True, 'label': _('Ad domain')},
'is_asset_protocol': {'label': _('Is asset protocol')},
'su_from': {'help_text': _('Only ssh and automatic login system users are supported')}
}
def validate_auto_push(self, value):
login_mode = self.get_initial_value("login_mode")
protocol = self.get_initial_value("protocol")
if login_mode == SystemUser.LOGIN_MANUAL:
value = False
elif protocol not in SystemUser.SUPPORT_PUSH_PROTOCOLS:
value = False
return value
def validate_auto_generate_key(self, value):
login_mode = self.get_initial_value("login_mode")
protocol = self.get_initial_value("protocol")
if self.context["request"].method.lower() != "post":
value = False
elif self.instance:
value = False
elif login_mode == SystemUser.LOGIN_MANUAL:
value = False
elif protocol not in SystemUser.SUPPORT_PUSH_PROTOCOLS:
value = False
return value
def validate_username_same_with_user(self, username_same_with_user):
if not username_same_with_user:
return username_same_with_user
protocol = self.get_initial_value("protocol", "ssh")
queryset = SystemUser.objects.filter(
protocol=protocol,
username_same_with_user=True
)
if self.instance:
queryset = queryset.exclude(id=self.instance.id)
exists = queryset.exists()
if not exists:
return username_same_with_user
error = _("Username same with user with protocol {} only allow 1").format(protocol)
raise serializers.ValidationError(error)
def validate_username(self, username):
protocol = self.get_initial_value("protocol")
if username:
if protocol == SystemUser.Protocol.telnet:
regx = alphanumeric_cn_re
elif protocol == SystemUser.Protocol.rdp:
regx = alphanumeric_win_re
else:
regx = alphanumeric_re
if not regx.match(username):
raise serializers.ValidationError(_('Special char not allowed'))
return username
username_same_with_user = self.get_initial_value("username_same_with_user")
if username_same_with_user:
return ''
login_mode = self.get_initial_value("login_mode")
if login_mode == SystemUser.LOGIN_AUTO and protocol != SystemUser.Protocol.vnc \
and protocol != SystemUser.Protocol.redis:
msg = _('* Automatic login mode must fill in the username.')
raise serializers.ValidationError(msg)
return username
def validate_home(self, home):
username_same_with_user = self.get_initial_value("username_same_with_user")
if username_same_with_user:
return ''
return home
@staticmethod
def validate_sftp_root(value):
if value in ['home', 'tmp']:
return value
if not value.startswith('/'):
error = _("Path should starts with /")
raise serializers.ValidationError(error)
return value
def validate_password(self, password):
super().validate_password(password)
auto_gen_key = self.get_initial_value('auto_generate_key', False)
private_key = self.get_initial_value('private_key')
login_mode = self.get_initial_value('login_mode')
if not self.instance and not auto_gen_key and not password and \
not private_key and login_mode == SystemUser.LOGIN_AUTO:
raise serializers.ValidationError(_("Password or private key required"))
return password
def validate_su_from(self, su_from: SystemUser):
# self: su enabled
su_enabled = self.get_initial_value('su_enabled', default=False)
if not su_enabled:
return
if not su_from:
error = _('This field is required.')
raise serializers.ValidationError(error)
# self: protocol ssh
protocol = self.get_initial_value('protocol', default=SystemUser.Protocol.ssh.value)
if protocol not in [SystemUser.Protocol.ssh.value]:
error = _('Only ssh protocol system users are allowed')
raise serializers.ValidationError(error)
# su_from: protocol same
if su_from.protocol != protocol:
error = _('The protocol must be consistent with the current user: {}').format(protocol)
raise serializers.ValidationError(error)
# su_from: login model auto
if su_from.login_mode != su_from.LOGIN_AUTO:
error = _('Only system users with automatic login are allowed')
raise serializers.ValidationError(error)
return su_from
def _validate_admin_user(self, attrs):
if self.instance:
tp = self.instance.type
else:
tp = attrs.get('type')
if tp != SystemUser.Type.admin:
return attrs
attrs['protocol'] = SystemUser.Protocol.ssh
attrs['login_mode'] = SystemUser.LOGIN_AUTO
attrs['username_same_with_user'] = False
attrs['auto_push'] = False
return attrs
def _validate_gen_key(self, attrs):
username = attrs.get('username', 'manual')
auto_gen_key = attrs.pop('auto_generate_key', False)
protocol = attrs.get('protocol')
if protocol not in SystemUser.SUPPORT_PUSH_PROTOCOLS:
return attrs
# 自动生成
if auto_gen_key and not self.instance:
password = SystemUser.gen_password()
attrs['password'] = password
if protocol == SystemUser.Protocol.ssh:
private_key, public_key = SystemUser.gen_key(username)
attrs['private_key'] = private_key
attrs['public_key'] = public_key
# 如果设置了private key没有设置public key则生成
elif attrs.get('private_key'):
private_key = attrs['private_key']
password = attrs.get('password')
public_key = ssh_pubkey_gen(private_key, password=password, username=username)
attrs['public_key'] = public_key
return attrs
def _validate_login_mode(self, attrs):
if 'login_mode' in attrs:
login_mode = attrs['login_mode']
else:
login_mode = self.instance.login_mode if self.instance else SystemUser.LOGIN_AUTO
if login_mode == SystemUser.LOGIN_MANUAL:
attrs['password'] = ''
attrs['private_key'] = ''
attrs['public_key'] = ''
return attrs
def validate(self, attrs):
attrs = self._validate_admin_user(attrs)
attrs = self._validate_gen_key(attrs)
attrs = self._validate_login_mode(attrs)
return attrs
@classmethod
def setup_eager_loading(cls, queryset):
""" Perform necessary eager loading of data. """
queryset = queryset \
.annotate(assets_amount=Count("assets")) \
.prefetch_related('nodes', 'cmd_filters')
return queryset
class MiniSystemUserSerializer(serializers.ModelSerializer):
class Meta:
model = SystemUser
fields = SystemUserSerializer.Meta.fields_mini
class SystemUserWithAuthInfoSerializer(SecretReadableMixin, SystemUserSerializer):
class Meta(SystemUserSerializer.Meta):
fields_mini = ['id', 'name', 'username']
fields_write_only = ['password', 'public_key', 'private_key']
fields_small = fields_mini + fields_write_only + [
'protocol', 'login_mode', 'login_mode_display', 'priority',
'sudo', 'shell', 'ad_domain', 'sftp_root', 'token',
"username_same_with_user", 'auto_push', 'auto_generate_key',
'comment',
]
fields = fields_small
extra_kwargs = {
'nodes_amount': {'label': _('Node')},
'assets_amount': {'label': _('Asset')},
'login_mode_display': {'label': _('Login mode display')},
'created_by': {'read_only': True},
'password': {'write_only': False},
'private_key': {'write_only': False},
'token': {'write_only': False}
}
class SystemUserSimpleSerializer(serializers.ModelSerializer):
"""
系统用户最基本信息的数据结构
"""
class Meta:
model = SystemUser
fields = ('id', 'name', 'username')
class RelationMixin(BulkSerializerMixin, serializers.Serializer):
systemuser_display = serializers.ReadOnlyField(label=_("System user name"))
org_name = serializers.ReadOnlyField(label=_("Org name"))
def get_field_names(self, declared_fields, info):
fields = super().get_field_names(declared_fields, info)
fields.extend(['systemuser', "systemuser_display", "org_name"])
return fields
class SystemUserAssetRelationSerializer(RelationMixin, serializers.ModelSerializer):
asset_display = serializers.ReadOnlyField(label=_('Asset hostname'))
class Meta:
model = SystemUser.assets.through
fields = [
"id", "asset", "asset_display", 'systemuser', 'systemuser_display',
"connectivity", 'date_verified', 'org_id'
]
use_model_bulk_create = True
model_bulk_create_kwargs = {
'ignore_conflicts': True
}
class SystemUserNodeRelationSerializer(RelationMixin, serializers.ModelSerializer):
node_display = serializers.SerializerMethodField()
class Meta:
model = SystemUser.nodes.through
fields = [
'id', 'node', "node_display",
]
def get_node_display(self, obj):
return obj.node.full_value
class SystemUserUserRelationSerializer(RelationMixin, serializers.ModelSerializer):
user_display = serializers.ReadOnlyField()
class Meta:
model = SystemUser.users.through
fields = [
'id', "user", "user_display",
]
class SystemUserTaskSerializer(serializers.Serializer):
ACTION_CHOICES = (
("test", "test"),
("push", "push"),
)
action = serializers.ChoiceField(choices=ACTION_CHOICES, write_only=True)
asset = serializers.PrimaryKeyRelatedField(
queryset=Asset.objects, allow_null=True, required=False, write_only=True
)
assets = serializers.PrimaryKeyRelatedField(
queryset=Asset.objects, allow_null=True, required=False, write_only=True,
many=True
)
task = serializers.CharField(read_only=True)
class SystemUserTempAuthSerializer(SystemUserSerializer):
instance_id = serializers.CharField()
class Meta(SystemUserSerializer.Meta):
fields = ['instance_id', 'username', 'password']