wehub-resource-sync
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87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package privilege
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import (
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"fmt"
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"sync"
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"go.uber.org/atomic"
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"github.com/milvus-io/milvus/pkg/v3/util/typeutil"
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)
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var (
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priCacheInitOnce sync.Once
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priCacheMut sync.RWMutex
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priCache *resultCache
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ver atomic.Int64
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)
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func getPriCache() *resultCache {
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priCacheMut.RLock()
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c := priCache
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priCacheMut.RUnlock()
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if c == nil {
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priCacheInitOnce.Do(func() {
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priCacheMut.Lock()
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defer priCacheMut.Unlock()
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priCache = &resultCache{
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version: ver.Inc(),
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values: typeutil.ConcurrentMap[string, bool]{},
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}
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})
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priCacheMut.RLock()
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defer priCacheMut.RUnlock()
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c = priCache
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}
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return c
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}
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func CleanPrivilegeCache() {
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priCacheMut.Lock()
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defer priCacheMut.Unlock()
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priCache = &resultCache{
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version: ver.Inc(),
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values: typeutil.ConcurrentMap[string, bool]{},
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}
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}
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func GetResultCache(roleName, object, objectPrivilege string) (isPermit, cached bool, version int64) {
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key := fmt.Sprintf("%s_%s_%s", roleName, object, objectPrivilege)
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c := getPriCache()
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isPermit, cached = c.values.Get(key)
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return isPermit, cached, c.version
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}
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func SetResultCache(roleName, object, objectPrivilege string, isPermit bool, version int64) {
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key := fmt.Sprintf("%s_%s_%s", roleName, object, objectPrivilege)
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c := getPriCache()
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if c.version == version {
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c.values.Insert(key, isPermit)
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}
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}
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// PrivilegeCache is a cache for privilege enforce result
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// version provides version control when any policy updates
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type resultCache struct {
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values typeutil.ConcurrentMap[string, bool]
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version int64
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}
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