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511 lines
16 KiB
511 lines
16 KiB
# -*- coding: utf-8 -*-
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#
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import datetime
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import inspect
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import sys
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if sys.version_info.major == 3 and sys.version_info.minor >= 10:
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from collections.abc import Iterable
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else:
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from collections import Iterable
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from functools import reduce, partial
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from itertools import groupby
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from uuid import UUID
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from django.utils.translation import gettext_lazy as _
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from django.db.models import QuerySet as DJQuerySet
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from elasticsearch7 import Elasticsearch
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from elasticsearch7.helpers import bulk
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from elasticsearch7.exceptions import RequestError, SSLError
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from elasticsearch7.exceptions import NotFoundError as NotFoundError7
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from elasticsearch8.exceptions import NotFoundError as NotFoundError8
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from elasticsearch8.exceptions import BadRequestError
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from common.utils.common import lazyproperty
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from common.utils import get_logger
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from common.utils.timezone import local_now_date_display
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from common.exceptions import JMSException
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logger = get_logger(__file__)
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class InvalidElasticsearch(JMSException):
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default_code = 'invalid_elasticsearch'
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default_detail = _('Invalid elasticsearch config')
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class NotSupportElasticsearch8(JMSException):
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default_code = 'not_support_elasticsearch8'
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default_detail = _('Not Support Elasticsearch8')
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class InvalidElasticsearchSSL(JMSException):
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default_code = 'invalid_elasticsearch_SSL'
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default_detail = _(
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'Connection failed: Self-signed certificate used. Please check server certificate configuration')
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class ESClient(object):
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def __new__(cls, *args, **kwargs):
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version = get_es_client_version(**kwargs)
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if version == 6:
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return ESClientV6(*args, **kwargs)
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if version == 7:
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return ESClientV7(*args, **kwargs)
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elif version == 8:
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return ESClientV8(*args, **kwargs)
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raise ValueError('Unsupported ES_VERSION %r' % version)
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class ESClientBase(object):
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@classmethod
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def get_properties(cls, data, index):
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return data[index]['mappings']['properties']
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@classmethod
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def get_mapping(cls, properties):
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return {'mappings': {'properties': properties}}
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class ESClientV7(ESClientBase):
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def __init__(self, *args, **kwargs):
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from elasticsearch7 import Elasticsearch
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self.es = Elasticsearch(*args, **kwargs)
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@classmethod
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def get_sort(cls, field, direction):
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return f'{field}:{direction}'
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class ESClientV6(ESClientV7):
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@classmethod
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def get_properties(cls, data, index):
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return data[index]['mappings']['data']['properties']
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@classmethod
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def get_mapping(cls, properties):
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return {'mappings': {'data': {'properties': properties}}}
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class ESClientV8(ESClientBase):
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def __init__(self, *args, **kwargs):
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from elasticsearch8 import Elasticsearch
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self.es = Elasticsearch(*args, **kwargs)
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@classmethod
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def get_sort(cls, field, direction):
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return {field: {'order': direction}}
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def get_es_client_version(**kwargs):
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try:
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es = Elasticsearch(**kwargs)
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info = es.info()
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version = int(info['version']['number'].split('.')[0])
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return version
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except SSLError:
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raise InvalidElasticsearchSSL
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except Exception:
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raise InvalidElasticsearch
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class ES(object):
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def __init__(self, config, properties, keyword_fields, exact_fields=None, match_fields=None):
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self.version = 7
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self.config = config
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hosts = self.config.get('HOSTS')
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kwargs = self.config.get('OTHER', {})
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ignore_verify_certs = kwargs.pop('IGNORE_VERIFY_CERTS', False)
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if ignore_verify_certs:
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kwargs['verify_certs'] = None
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self.client = ESClient(hosts=hosts, max_retries=0, **kwargs)
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self.es = self.client.es
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self.index_prefix = self.config.get('INDEX') or 'jumpserver'
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self.is_index_by_date = bool(self.config.get('INDEX_BY_DATE', False))
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self.index = None
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self.query_index = None
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self.properties = properties
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self.exact_fields, self.match_fields, self.keyword_fields = set(), set(), set()
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if isinstance(keyword_fields, Iterable):
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self.keyword_fields.update(keyword_fields)
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if isinstance(exact_fields, Iterable):
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self.exact_fields.update(exact_fields)
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if isinstance(match_fields, Iterable):
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self.match_fields.update(match_fields)
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self.init_index()
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self.doc_type = self.config.get("DOC_TYPE") or '_doc'
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if self.is_new_index_type():
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self.doc_type = '_doc'
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self.exact_fields.update(self.keyword_fields)
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else:
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self.match_fields.update(self.keyword_fields)
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def init_index(self):
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if self.is_index_by_date:
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date = local_now_date_display()
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self.index = '%s-%s' % (self.index_prefix, date)
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self.query_index = '%s-alias' % self.index_prefix
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else:
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self.index = self.config.get("INDEX") or 'jumpserver'
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self.query_index = self.config.get("INDEX") or 'jumpserver'
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def is_new_index_type(self):
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if not self.ping(timeout=2):
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return False
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try:
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# 获取索引信息，如果没有定义，直接返回
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data = self.es.indices.get_mapping(index=self.index)
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except (NotFoundError8, NotFoundError7):
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return False
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try:
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properties = self.client.get_properties(data=data, index=self.index)
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for keyword in self.keyword_fields:
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if not properties[keyword]['type'] == 'keyword':
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break
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else:
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return True
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except KeyError:
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return False
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def pre_use_check(self):
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if not self.ping(timeout=3):
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raise InvalidElasticsearch
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self._ensure_index_exists()
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def _ensure_index_exists(self):
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try:
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mappings = self.client.get_mapping(self.properties)
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if self.is_index_by_date:
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mappings['aliases'] = {
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self.query_index: {}
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}
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try:
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self.es.indices.create(index=self.index, body=mappings)
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except (RequestError, BadRequestError) as e:
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if e.error == 'resource_already_exists_exception':
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logger.warning(e)
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else:
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logger.exception(e)
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except Exception as e:
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logger.error(e, exc_info=True)
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def make_data(self, data):
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return []
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def save(self, **kwargs):
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data = self.make_data(kwargs)
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return self.es.index(index=self.index, doc_type=self.doc_type, body=data)
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def bulk_save(self, command_set, raise_on_error=True):
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actions = []
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for command in command_set:
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data = dict(
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_index=self.index,
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_type=self.doc_type,
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_source=self.make_data(command),
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)
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actions.append(data)
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return bulk(self.es, actions, index=self.index, raise_on_error=raise_on_error)
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def get(self, query: dict):
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item = None
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data = self.filter(query, size=1)
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if len(data) >= 1:
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item = data[0]
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return item
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def filter(self, query: dict, from_=None, size=None, sort=None):
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try:
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data = self._filter(query, from_, size, sort)
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except Exception as e:
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logger.error('ES filter error: {}'.format(e))
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data = []
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return data
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def _filter(self, query: dict, from_=None, size=None, sort=None):
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body = self.get_query_body(**query)
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search_params = {
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'index': self.query_index,
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'body': body,
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'from_': from_,
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'size': size
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}
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if sort is not None:
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search_params['sort'] = sort
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data = self.es.search(**search_params)
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source_data = []
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for item in data['hits']['hits']:
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if item:
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item['_source'].update({'es_id': item['_id']})
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source_data.append(item['_source'])
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return source_data
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def count(self, **query):
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try:
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body = self.get_query_body(**query)
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data = self.es.count(index=self.query_index, body=body)
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count = data["count"]
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except Exception as e:
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logger.error('ES count error: {}'.format(e))
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count = 0
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return count
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def __getattr__(self, item):
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return getattr(self.es, item)
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def all(self):
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"""返回所有数据"""
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raise NotImplementedError("Not support")
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def ping(self, timeout=None):
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try:
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return self.es.ping(request_timeout=timeout)
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except Exception:
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return False
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@staticmethod
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def handler_time_field(data):
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datetime__gte = data.get('datetime__gte')
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datetime__lte = data.get('datetime__lte')
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datetime_range = {}
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if datetime__gte:
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if isinstance(datetime__gte, datetime.datetime):
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datetime__gte = datetime__gte.strftime('%Y-%m-%d %H:%M:%S')
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datetime_range['gte'] = datetime__gte
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if datetime__lte:
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if isinstance(datetime__lte, datetime.datetime):
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datetime__lte = datetime__lte.strftime('%Y-%m-%d %H:%M:%S')
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datetime_range['lte'] = datetime__lte
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return 'datetime', datetime_range
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@staticmethod
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def handle_exact_fields(exact):
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_filter = []
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for k, v in exact.items():
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query = 'term'
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if isinstance(v, list):
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query = 'terms'
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_filter.append({
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query: {k: v}
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})
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return _filter
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def get_query_body(self, **kwargs):
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new_kwargs = {}
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for k, v in kwargs.items():
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if isinstance(v, UUID):
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v = str(v)
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if k == 'pk':
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k = 'id'
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if k.endswith('__in'):
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k = k.replace('__in', '')
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new_kwargs[k] = v
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kwargs = new_kwargs
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index_in_field = 'id__in'
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exact_fields = self.exact_fields
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match_fields = self.match_fields
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match = {}
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exact = {}
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index = {}
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if index_in_field in kwargs:
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index['values'] = kwargs[index_in_field]
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for k, v in kwargs.items():
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if k in exact_fields:
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exact[k] = v
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elif k in match_fields:
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match[k] = v
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# 处理时间
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time_field_name, time_range = self.handler_time_field(kwargs)
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# 处理组织
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should = []
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org_id = match.get('org_id')
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real_default_org_id = '00000000-0000-0000-0000-000000000002'
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root_org_id = '00000000-0000-0000-0000-000000000000'
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if org_id == root_org_id:
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match.pop('org_id')
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elif org_id in (real_default_org_id, ''):
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match.pop('org_id')
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should.append({
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'bool': {
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'must_not': [
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{
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'wildcard': {'org_id': '*'}
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}
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]}
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})
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should.append({'match': {'org_id': real_default_org_id}})
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# 构建 body
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body = {
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'query': {
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'bool': {
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'must': [
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{'match': {k: v}} for k, v in match.items()
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],
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'should': should,
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'filter': self.handle_exact_fields(exact) +
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[
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{
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'range': {
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time_field_name: time_range
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}
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}
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] + [
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{
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'ids': {k: v}
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} for k, v in index.items()
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]
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}
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},
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}
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return body
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class QuerySet(DJQuerySet):
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default_days_ago = 7
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max_result_window = 10000
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def __init__(self, es_instance):
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self._method_calls = []
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self._slice = None # (from_, size)
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self._storage = es_instance
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# 命令列表模糊搜索时报错
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super().__init__()
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@lazyproperty
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def _grouped_method_calls(self):
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_method_calls = {k: list(v) for k, v in groupby(self._method_calls, lambda x: x[0])}
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return _method_calls
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@lazyproperty
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def _filter_kwargs(self):
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_method_calls = self._grouped_method_calls
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filter_calls = _method_calls.get('filter')
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if not filter_calls:
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return {}
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names, multi_args, multi_kwargs = zip(*filter_calls)
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kwargs = reduce(lambda x, y: {**x, **y}, multi_kwargs, {})
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striped_kwargs = {}
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for k, v in kwargs.items():
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k = k.replace('__exact', '')
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k = k.replace('__startswith', '')
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k = k.replace('__icontains', '')
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striped_kwargs[k] = v
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return striped_kwargs
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@lazyproperty
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def _sort(self):
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order_by = self._grouped_method_calls.get('order_by')
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if order_by:
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for call in reversed(order_by):
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fields = call[1]
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if fields:
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field = fields[-1]
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if field.startswith('-'):
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direction = 'desc'
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else:
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direction = 'asc'
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field = field.lstrip('-+')
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sort = self._storage.client.get_sort(field, direction)
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return sort
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def __execute(self):
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_filter_kwargs = self._filter_kwargs
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_sort = self._sort
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from_, size = self._slice or (None, None)
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data = self._storage.filter(_filter_kwargs, from_=from_, size=size, sort=_sort)
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return self.model.from_multi_dict(data)
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def __stage_method_call(self, item, *args, **kwargs):
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_clone = self.__clone()
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_clone._method_calls.append((item, args, kwargs))
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return _clone
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def __clone(self):
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uqs = QuerySet(self._storage)
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uqs._method_calls = self._method_calls.copy()
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uqs._slice = self._slice
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uqs.model = self.model
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return uqs
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def get(self, **kwargs):
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kwargs.update(self._filter_kwargs)
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return self._storage.get(kwargs)
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def count(self, limit_to_max_result_window=True):
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filter_kwargs = self._filter_kwargs
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count = self._storage.count(**filter_kwargs)
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if limit_to_max_result_window:
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count = min(count, self.max_result_window)
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return count
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def __getattribute__(self, item):
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if any((
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item.startswith('__'),
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item in QuerySet.__dict__,
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)):
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return object.__getattribute__(self, item)
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origin_attr = object.__getattribute__(self, item)
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if not inspect.ismethod(origin_attr):
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return origin_attr
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attr = partial(self.__stage_method_call, item)
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return attr
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def __getitem__(self, item):
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max_window = self.max_result_window
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if isinstance(item, slice):
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if self._slice is None:
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clone = self.__clone()
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from_ = item.start or 0
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if item.stop is None:
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size = self.max_result_window - from_
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else:
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size = item.stop - from_
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if from_ + size > max_window:
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if from_ >= max_window:
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from_ = max_window
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size = 0
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else:
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size = max_window - from_
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clone._slice = (from_, size)
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return clone
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return self.__execute()[item]
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def __repr__(self):
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return self.__execute().__repr__()
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def __iter__(self):
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return iter(self.__execute())
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def __len__(self):
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return self.count()
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