# -*- coding: utf-8 -*- # from django.db.models import F from django.db.transaction import atomic from django.utils.translation import gettext_lazy as _ from rest_framework import serializers from accounts.models import Account from accounts.serializers import AccountSerializer from common.const import UUID_PATTERN from common.serializers import ( WritableNestedModelSerializer, SecretReadableMixin, CommonModelSerializer, MethodSerializer, ResourceLabelsMixin ) from common.serializers.common import DictSerializer from common.serializers.fields import LabeledChoiceField from labels.models import Label from orgs.mixins.serializers import BulkOrgResourceModelSerializer from ...const import Category, AllTypes from ...models import Asset, Node, Platform, Protocol __all__ = [ 'AssetSerializer', 'AssetSimpleSerializer', 'MiniAssetSerializer', 'AssetTaskSerializer', 'AssetsTaskSerializer', 'AssetProtocolsSerializer', 'AssetDetailSerializer', 'DetailMixin', 'AssetAccountSerializer', 'AccountSecretSerializer', 'AssetProtocolsPermsSerializer', 'AssetLabelSerializer' ] class AssetProtocolsSerializer(serializers.ModelSerializer): port = serializers.IntegerField(required=False, allow_null=True, max_value=65535, min_value=0) def to_file_representation(self, data): return '{name}/{port}'.format(**data) def to_file_internal_value(self, data): name, port = data.split('/') return {'name': name, 'port': port} class Meta: model = Protocol fields = ['name', 'port'] class AssetProtocolsPermsSerializer(AssetProtocolsSerializer): class Meta(AssetProtocolsSerializer.Meta): fields = AssetProtocolsSerializer.Meta.fields + ['public', 'setting'] class AssetLabelSerializer(serializers.ModelSerializer): class Meta: model = Label fields = ['id', 'name', 'value'] extra_kwargs = { # 取消默认唯一键的校验 'id': {'validators': []}, 'name': {'required': False}, 'value': {'required': False}, } class AssetPlatformSerializer(serializers.ModelSerializer): class Meta: model = Platform fields = ['id', 'name'] extra_kwargs = { 'name': {'required': False} } class AssetAccountSerializer(AccountSerializer): add_org_fields = False asset = serializers.PrimaryKeyRelatedField(queryset=Asset.objects, required=False, write_only=True) clone_id = None def to_internal_value(self, data): # 导入时，data有时为str if isinstance(data, str): return super().to_internal_value(data) clone_id = data.pop('id', None) ret = super().to_internal_value(data) self.clone_id = clone_id return ret def set_secret(self, attrs): _id = self.clone_id if not _id: return attrs account = Account.objects.get(id=_id) attrs['secret'] = account.secret return attrs def validate(self, attrs): attrs = super().validate(attrs) return self.set_secret(attrs) class Meta(AccountSerializer.Meta): fields = [ f for f in AccountSerializer.Meta.fields if f not in [ 'spec_info', 'connectivity', 'labels', 'created_by', 'date_update', 'date_created' ] ] extra_kwargs = { **AccountSerializer.Meta.extra_kwargs, } class AccountSecretSerializer(SecretReadableMixin, CommonModelSerializer): class Meta: model = Account fields = [ 'name', 'username', 'privileged', 'secret_type', 'secret', ] extra_kwargs = { 'secret': {'write_only': False}, } class AssetSerializer(BulkOrgResourceModelSerializer, ResourceLabelsMixin, WritableNestedModelSerializer): category = LabeledChoiceField(choices=Category.choices, read_only=True, label=_('Category')) type = LabeledChoiceField(choices=AllTypes.choices(), read_only=True, label=_('Type')) protocols = AssetProtocolsSerializer(many=True, required=False, label=_('Protocols'), default=()) accounts = AssetAccountSerializer(many=True, required=False, allow_null=True, write_only=True, label=_('Account')) nodes_display = serializers.ListField(read_only=False, required=False, label=_("Node path")) _accounts = None class Meta: model = Asset fields_mini = ['id', 'name', 'address'] fields_small = fields_mini + ['is_active', 'comment'] fields_fk = ['domain', 'platform'] fields_m2m = [ 'nodes', 'labels', 'protocols', 'nodes_display', 'accounts', ] read_only_fields = [ 'category', 'type', 'connectivity', 'auto_config', 'date_verified', 'created_by', 'date_created', ] fields = fields_small + fields_fk + fields_m2m + read_only_fields fields_unexport = ['auto_config'] extra_kwargs = { 'auto_config': {'label': _('Auto info')}, 'name': {'label': _("Name")}, 'address': {'label': _('Address')}, 'nodes_display': {'label': _('Node path')}, 'nodes': {'allow_empty': True}, } def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self._init_field_choices() self._extract_accounts() def _extract_accounts(self): if not getattr(self, 'initial_data', None): return if isinstance(self.initial_data, list): return accounts = self.initial_data.pop('accounts', None) self._accounts = accounts def _get_protocols_required_default(self): platform = self._asset_platform platform_protocols = platform.protocols.all() protocols_default = [p for p in platform_protocols if p.default] protocols_required = [p for p in platform_protocols if p.required or p.primary] return protocols_required, protocols_default def _set_protocols_default(self): if not hasattr(self, 'initial_data'): return protocols = self.initial_data.get('protocols') if protocols is not None: return if getattr(self, 'instance', None): return protocols_required, protocols_default = self._get_protocols_required_default() protocol_map = {str(protocol.id): protocol for protocol in protocols_required + protocols_default} protocols = list(protocol_map.values()) protocols_data = [{'name': p.name, 'port': p.port} for p in protocols] self.initial_data['protocols'] = protocols_data def _init_field_choices(self): request = self.context.get('request') if not request: return category = request.path.strip('/').split('/')[-1].rstrip('s') field_category = self.fields.get('category') if not field_category: return field_category.choices = Category.filter_choices(category) field_type = self.fields.get('type') if not field_type: return field_type.choices = AllTypes.filter_choices(category) @classmethod def setup_eager_loading(cls, queryset): """ Perform necessary eager loading of data. """ queryset = queryset.prefetch_related('domain', 'nodes', 'protocols', ) \ .prefetch_related('platform', 'platform__automation') \ .annotate(category=F("platform__category")) \ .annotate(type=F("platform__type")) if queryset.model is Asset: queryset = queryset.prefetch_related('labels__label', 'labels') else: queryset = queryset.prefetch_related('asset_ptr__labels__label', 'asset_ptr__labels') return queryset @staticmethod def perform_nodes_display_create(instance, nodes_display): if not nodes_display: return nodes_to_set = [] for full_value in nodes_display: if not full_value.startswith('/'): full_value = '/' + instance.org.name + '/' + full_value node = Node.objects.filter(full_value=full_value).first() if node: nodes_to_set.append(node) else: node = Node.create_node_by_full_value(full_value) nodes_to_set.append(node) instance.nodes.set(nodes_to_set) @property def _asset_platform(self): platform_id = self.initial_data.get('platform') if isinstance(platform_id, dict): platform_id = platform_id.get('id') or platform_id.get('pk') if not platform_id and self.instance: platform = self.instance.platform else: platform = Platform.objects.filter(id=platform_id).first() if not platform: raise serializers.ValidationError({'platform': _("Platform not exist")}) return platform def validate_domain(self, value): platform = self._asset_platform if platform.domain_enabled: return value else: return None def validate_nodes(self, nodes): if nodes: return nodes nodes_display = self.initial_data.get('nodes_display') if nodes_display: return nodes default_node = Node.org_root() request = self.context.get('request') if not request: return [default_node] node_id = request.query_params.get('node_id') if not node_id: return [default_node] nodes = Node.objects.filter(id=node_id) return nodes def is_valid(self, raise_exception=False): self._set_protocols_default() return super().is_valid(raise_exception=raise_exception) def validate_protocols(self, protocols_data): # 目的是去重 protocols_data_map = {p['name']: p for p in protocols_data} for p in protocols_data: port = p.get('port', 0) if port < 0 or port > 65535: error = p.get('name') + ': ' + _("port out of range (0-65535)") raise serializers.ValidationError(error) protocols_required, __ = self._get_protocols_required_default() protocols_not_found = [p.name for p in protocols_required if p.name not in protocols_data_map] if protocols_not_found: raise serializers.ValidationError({ 'protocols': _("Protocol is required: {}").format(', '.join(protocols_not_found)) }) return protocols_data_map.values() @staticmethod def update_account_su_from(accounts, include_su_from_accounts): if not include_su_from_accounts: return name_map = {account.name: account for account in accounts} username_secret_type_map = { (account.username, account.secret_type): account for account in accounts } for name, username_secret_type in include_su_from_accounts.items(): account = name_map.get(name) if not account: continue su_from_account = username_secret_type_map.get(username_secret_type) if su_from_account: account.su_from = su_from_account account.save() def accounts_create(self, accounts_data, asset): from accounts.models import AccountTemplate if not accounts_data: return if not isinstance(accounts_data[0], dict): raise serializers.ValidationError({'accounts': _("Invalid data")}) su_from_name_username_secret_type_map = {} for data in accounts_data: data['asset'] = asset.id name = data.get('name') su_from = data.pop('su_from', None) template_id = data.get('template', None) if template_id: template = AccountTemplate.objects.get(id=template_id) if template and template.su_from: su_from_name_username_secret_type_map[template.name] = ( template.su_from.username, template.su_from.secret_type ) elif isinstance(su_from, dict): su_from = Account.objects.get(id=su_from.get('id')) su_from_name_username_secret_type_map[name] = ( su_from.username, su_from.secret_type ) s = AssetAccountSerializer(data=accounts_data, many=True) s.is_valid(raise_exception=True) accounts = s.save() self.update_account_su_from(accounts, su_from_name_username_secret_type_map) @atomic def create(self, validated_data): nodes_display = validated_data.pop('nodes_display', '') instance = super().create(validated_data) self.accounts_create(self._accounts, instance) self.perform_nodes_display_create(instance, nodes_display) return instance @staticmethod def sync_platform_protocols(instance, old_platform): platform = instance.platform if str(old_platform.id) == str(instance.platform_id): return platform_protocols = { p['name']: p['port'] for p in platform.protocols.values('name', 'port') } protocols = set(instance.protocols.values_list('name', flat=True)) protocol_names = set(platform_protocols) - protocols objs = [] for name in protocol_names: objs.append( Protocol( name=name, port=platform_protocols[name], asset_id=instance.id, ) ) Protocol.objects.bulk_create(objs) @atomic def update(self, instance, validated_data): old_platform = instance.platform nodes_display = validated_data.pop('nodes_display', '') instance = super().update(instance, validated_data) self.sync_platform_protocols(instance, old_platform) self.perform_nodes_display_create(instance, nodes_display) return instance class DetailMixin(serializers.Serializer): spec_info = MethodSerializer(label=_('Spec info'), read_only=True) gathered_info = MethodSerializer(label=_('Gathered info'), read_only=True) auto_config = serializers.DictField(read_only=True, label=_('Auto info')) def get_instance(self): request = self.context.get('request') if not self.instance and UUID_PATTERN.findall(request.path): pk = UUID_PATTERN.findall(request.path)[0] self.instance = Asset.objects.filter(id=pk).first() return self.instance def get_field_names(self, declared_fields, info): names = super().get_field_names(declared_fields, info) names.extend([ 'gathered_info', 'spec_info', 'auto_config', ]) return names def get_category(self): request = self.context.get('request') if request.query_params.get('category'): category = request.query_params.get('category') else: instance = self.get_instance() category = instance.category if instance else 'host' return category def get_gathered_info_serializer(self): category = self.get_category() from .info.gathered import category_gathered_serializer_map serializer_cls = category_gathered_serializer_map.get(category, DictSerializer) return serializer_cls() def get_spec_info_serializer(self): category = self.get_category() from .info.spec import category_spec_serializer_map serializer_cls = category_spec_serializer_map.get(category, DictSerializer) return serializer_cls() class AssetDetailSerializer(DetailMixin, AssetSerializer): pass class MiniAssetSerializer(serializers.ModelSerializer): class Meta: model = Asset fields = AssetSerializer.Meta.fields_mini class AssetSimpleSerializer(serializers.ModelSerializer): class Meta: model = Asset fields = [ 'id', 'name', 'address', 'port', 'connectivity', 'date_verified' ] class AssetsTaskSerializer(serializers.Serializer): ACTION_CHOICES = ( ('refresh', 'refresh'), ('test', 'test'), ) task = serializers.CharField(read_only=True) action = serializers.ChoiceField(choices=ACTION_CHOICES, write_only=True) assets = serializers.PrimaryKeyRelatedField( queryset=Asset.objects, required=False, allow_empty=True, many=True ) class AssetTaskSerializer(AssetsTaskSerializer): ACTION_CHOICES = tuple(list(AssetsTaskSerializer.ACTION_CHOICES) + [ ('push_system_user', 'push_system_user'), ('test_system_user', 'test_system_user') ]) action = serializers.ChoiceField(choices=ACTION_CHOICES, write_only=True) asset = serializers.PrimaryKeyRelatedField( queryset=Asset.objects, required=False, allow_empty=True, many=False ) accounts = serializers.PrimaryKeyRelatedField( queryset=Account.objects, required=False, allow_empty=True, many=True )