add auditing events search api

pkg/simple/client/auditing/interface.go

@@ -0,0 +1,65 @@
+/*
+Copyright 2020 The KubeSphere Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package auditing
+
+import (
+	"time"
+)
+
+type Client interface {
+	SearchAuditingEvent(filter *Filter, from, size int64, sort string) (*Events, error)
+	CountOverTime(filter *Filter, interval string) (*Histogram, error)
+	StatisticsOnResources(filter *Filter) (*Statistics, error)
+}
+
+type Filter struct {
+	ObjectRefNamespaceMap map[string]time.Time
+	ObjectRefNames        []string
+	ObjectRefNameFuzzy    []string
+	Levels                []string
+	Verbs                 []string
+	Users                 []string
+	UserFuzzy             []string
+	GroupFuzzy            []string
+	SourceIpFuzzy         []string
+	ObjectRefResources    []string
+	ObjectRefSubresources []string
+	ResponseStatus        []int32
+	StartTime             *time.Time
+	EndTime               *time.Time
+}
+
+type Event map[string]interface{}
+
+type Events struct {
+	Total   int64    `json:"total" description:"total number of matched results"`
+	Records []*Event `json:"records" description:"actual array of results"`
+}
+
+type Histogram struct {
+	Total   int64    `json:"total" description:"total number of events"`
+	Buckets []Bucket `json:"buckets" description:"actual array of histogram results"`
+}
+type Bucket struct {
+	Time  int64 `json:"time" description:"timestamp"`
+	Count int64 `json:"count" description:"total number of events at intervals"`
+}
+
+type Statistics struct {
+	Resources int64 `json:"resources" description:"total number of resources"`
+	Events    int64 `json:"events" description:"total number of events"`
+}