mirror of https://github.com/jumpserver/jumpserver
249 lines
8.6 KiB
Python
249 lines
8.6 KiB
Python
# -*- coding: utf-8 -*-
|
||
#
|
||
from collections import Iterable
|
||
|
||
from django.db.models import Prefetch, F
|
||
from django.core.exceptions import ObjectDoesNotExist
|
||
from rest_framework.utils import html
|
||
from rest_framework.settings import api_settings
|
||
from rest_framework.exceptions import ValidationError
|
||
from rest_framework.fields import SkipField, empty
|
||
__all__ = ['BulkSerializerMixin', 'BulkListSerializerMixin', 'CommonSerializerMixin', 'CommonBulkSerializerMixin']
|
||
|
||
|
||
class BulkSerializerMixin(object):
|
||
"""
|
||
Become rest_framework_bulk not support uuid as a primary key
|
||
so rewrite it. https://github.com/miki725/django-rest-framework-bulk/issues/66
|
||
"""
|
||
def to_internal_value(self, data):
|
||
from rest_framework_bulk import BulkListSerializer
|
||
ret = super(BulkSerializerMixin, self).to_internal_value(data)
|
||
|
||
id_attr = getattr(self.Meta, 'update_lookup_field', 'id')
|
||
if self.context.get('view'):
|
||
request_method = getattr(getattr(self.context.get('view'), 'request'), 'method', '')
|
||
# add update_lookup_field field back to validated data
|
||
# since super by default strips out read-only fields
|
||
# hence id will no longer be present in validated_data
|
||
if all((isinstance(self.root, BulkListSerializer),
|
||
id_attr,
|
||
request_method in ('PUT', 'PATCH'))):
|
||
id_field = self.fields.get("id") or self.fields.get('pk')
|
||
if data.get("id"):
|
||
id_value = id_field.to_internal_value(data.get("id"))
|
||
else:
|
||
id_value = id_field.to_internal_value(data.get("pk"))
|
||
ret[id_attr] = id_value
|
||
return ret
|
||
|
||
def run_validation(self, data=empty):
|
||
"""
|
||
批量创建时，获取到的self.initial_data是list，
|
||
所以想用一个属性来存放当前操作的数据集，在validate_field中使用
|
||
:param data:
|
||
:return:
|
||
"""
|
||
# 只有批量创建的时候，才需要重写 initial_data
|
||
if self.parent:
|
||
self.initial_data = data
|
||
return super().run_validation(data)
|
||
|
||
@classmethod
|
||
def many_init(cls, *args, **kwargs):
|
||
meta = getattr(cls, 'Meta', None)
|
||
assert meta is not None, 'Must have `Meta`'
|
||
if not hasattr(meta, 'list_serializer_class'):
|
||
from common.drf.serializers import AdaptedBulkListSerializer
|
||
meta.list_serializer_class = AdaptedBulkListSerializer
|
||
return super(BulkSerializerMixin, cls).many_init(*args, **kwargs)
|
||
|
||
|
||
class BulkListSerializerMixin(object):
|
||
"""
|
||
Become rest_framework_bulk doing bulk update raise Exception:
|
||
'QuerySet' object has no attribute 'pk' when doing bulk update
|
||
so rewrite it .
|
||
https://github.com/miki725/django-rest-framework-bulk/issues/68
|
||
"""
|
||
|
||
def to_internal_value(self, data):
|
||
"""
|
||
List of dicts of native values <- List of dicts of primitive datatypes.
|
||
"""
|
||
if not self.instance:
|
||
return super().to_internal_value(data)
|
||
|
||
if html.is_html_input(data):
|
||
data = html.parse_html_list(data)
|
||
|
||
if not isinstance(data, list):
|
||
message = self.error_messages['not_a_list'].format(
|
||
input_type=type(data).__name__
|
||
)
|
||
raise ValidationError({
|
||
api_settings.NON_FIELD_ERRORS_KEY: [message]
|
||
}, code='not_a_list')
|
||
|
||
if not self.allow_empty and len(data) == 0:
|
||
if self.parent and self.partial:
|
||
raise SkipField()
|
||
|
||
message = self.error_messages['empty']
|
||
raise ValidationError({
|
||
api_settings.NON_FIELD_ERRORS_KEY: [message]
|
||
}, code='empty')
|
||
|
||
ret = []
|
||
errors = []
|
||
|
||
for item in data:
|
||
try:
|
||
# prepare child serializer to only handle one instance
|
||
if 'id' in item:
|
||
pk = item["id"]
|
||
elif 'pk' in item:
|
||
pk = item["pk"]
|
||
else:
|
||
raise ValidationError("id or pk not in data")
|
||
child = self.instance.get(id=pk) if self.instance else None
|
||
self.child.instance = child
|
||
self.child.initial_data = item
|
||
# raw
|
||
validated = self.child.run_validation(item)
|
||
except ValidationError as exc:
|
||
errors.append(exc.detail)
|
||
except ObjectDoesNotExist as e:
|
||
errors.append(e)
|
||
else:
|
||
ret.append(validated)
|
||
errors.append({})
|
||
|
||
if any(errors):
|
||
raise ValidationError(errors)
|
||
|
||
return ret
|
||
|
||
|
||
class BaseDynamicFieldsPlugin:
|
||
def __init__(self, serializer):
|
||
self.serializer = serializer
|
||
|
||
def can_dynamic(self):
|
||
try:
|
||
request = self.serializer.context['request']
|
||
method = request.method
|
||
except (AttributeError, TypeError, KeyError):
|
||
# The serializer was not initialized with request context.
|
||
return False
|
||
|
||
if method != 'GET':
|
||
return False
|
||
return True
|
||
|
||
def get_request(self):
|
||
return self.serializer.context['request']
|
||
|
||
def get_query_params(self):
|
||
request = self.get_request()
|
||
try:
|
||
query_params = request.query_params
|
||
except AttributeError:
|
||
# DRF 2
|
||
query_params = getattr(request, 'QUERY_PARAMS', request.GET)
|
||
return query_params
|
||
|
||
def get_exclude_field_names(self):
|
||
return set()
|
||
|
||
|
||
class QueryFieldsMixin(BaseDynamicFieldsPlugin):
|
||
# https://github.com/wimglenn/djangorestframework-queryfields/
|
||
|
||
# If using Django filters in the API, these labels mustn't conflict with any model field names.
|
||
include_arg_name = 'fields'
|
||
exclude_arg_name = 'fields!'
|
||
|
||
# Split field names by this string. It doesn't necessarily have to be a single character.
|
||
# Avoid RFC 1738 reserved characters i.e. ';', '/', '?', ':', '@', '=' and '&'
|
||
delimiter = ','
|
||
|
||
def get_exclude_field_names(self):
|
||
query_params = self.get_query_params()
|
||
includes = query_params.getlist(self.include_arg_name)
|
||
include_field_names = {name for names in includes for name in names.split(self.delimiter) if name}
|
||
|
||
excludes = query_params.getlist(self.exclude_arg_name)
|
||
exclude_field_names = {name for names in excludes for name in names.split(self.delimiter) if name}
|
||
|
||
if not include_field_names and not exclude_field_names:
|
||
# No user fields filtering was requested, we have nothing to do here.
|
||
return []
|
||
|
||
serializer_field_names = set(self.serializer.fields)
|
||
fields_to_drop = serializer_field_names & exclude_field_names
|
||
|
||
if include_field_names:
|
||
fields_to_drop |= serializer_field_names - include_field_names
|
||
return fields_to_drop
|
||
|
||
|
||
class SizedModelFieldsMixin(BaseDynamicFieldsPlugin):
|
||
arg_name = 'fields_size'
|
||
|
||
def can_dynamic(self):
|
||
if not hasattr(self.serializer, 'Meta'):
|
||
return False
|
||
can = super().can_dynamic()
|
||
return can
|
||
|
||
def get_exclude_field_names(self):
|
||
query_params = self.get_query_params()
|
||
size = query_params.get(self.arg_name)
|
||
if not size:
|
||
return []
|
||
if size not in ['mini', 'small']:
|
||
return []
|
||
size_fields = getattr(self.serializer.Meta, 'fields_{}'.format(size), None)
|
||
if not size_fields or not isinstance(size_fields, Iterable):
|
||
return []
|
||
serializer_field_names = set(self.serializer.fields)
|
||
fields_to_drop = serializer_field_names - set(size_fields)
|
||
return fields_to_drop
|
||
|
||
|
||
class DynamicFieldsMixin:
|
||
dynamic_fields_plugins = [QueryFieldsMixin, SizedModelFieldsMixin]
|
||
|
||
def __init__(self, *args, **kwargs):
|
||
super().__init__(*args, **kwargs)
|
||
|
||
exclude_field_names = set()
|
||
for cls in self.dynamic_fields_plugins:
|
||
plugin = cls(self)
|
||
if not plugin.can_dynamic():
|
||
continue
|
||
exclude_field_names |= set(plugin.get_exclude_field_names())
|
||
|
||
for field in exclude_field_names or []:
|
||
self.fields.pop(field, None)
|
||
|
||
|
||
class EagerLoadQuerySetFields:
|
||
def setup_eager_loading(self, queryset):
|
||
""" Perform necessary eager loading of data. """
|
||
queryset = queryset.prefetch_related(
|
||
Prefetch('nodes'),
|
||
Prefetch('labels'),
|
||
).select_related('admin_user', 'domain', 'platform') \
|
||
.annotate(platform_base=F('platform__base'))
|
||
return queryset
|
||
|
||
|
||
class CommonSerializerMixin(DynamicFieldsMixin):
|
||
pass
|
||
|
||
|
||
class CommonBulkSerializerMixin(BulkSerializerMixin, CommonSerializerMixin):
|
||
pass
|