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