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jumpserver/apps/common/plugins/es.py

517 lines
16 KiB

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