1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 #ifndef OHOS_DISTRIBUTED_DATA_SERVICES_SERVICE_PERMISSION_PERMIT_DELEGATE_H
16 #define OHOS_DISTRIBUTED_DATA_SERVICES_SERVICE_PERMISSION_PERMIT_DELEGATE_H
17 #include <cstdint>
18 #include <map>
19 #include <string>
20 #include "concurrent_map.h"
21 #include "lru_bucket.h"
22 #include "metadata/store_meta_data.h"
23 #include "store_errno.h"
24 #include "types_export.h"
25 #include "visibility.h"
26 
27 namespace OHOS::DistributedData {
28 using Status = OHOS::DistributedKv::Status;
29 using CheckParam = DistributedDB::PermissionCheckParam;
30 using CondParam = DistributedDB::PermissionConditionParam;
31 using ActiveParam = DistributedDB::ActivationCheckParam;
32 
33 class PermitDelegate {
34 public:
35     API_EXPORT static PermitDelegate &GetInstance();
36     API_EXPORT void Init();
37     API_EXPORT bool SyncActivate(const ActiveParam &param);
38     API_EXPORT bool VerifyPermission(const CheckParam &param, uint8_t flag);
39     API_EXPORT void DelCache(const std::string &key);
40     API_EXPORT static bool VerifyPermission(const std::string &permission,
41         uint32_t callerTokenId);
42 
43 private:
44     PermitDelegate();
45     ~PermitDelegate();
46     bool VerifyExtraCondition(const std::map<std::string, std::string> &cond) const;
47     Status VerifyStrategy(const StoreMetaData &data, const std::string &rmdevId) const;
48     Status LoadStoreMeta(const std::string &prefix, const CheckParam &param, StoreMetaData &data) const;
49     std::map<std::string, std::string> GetExtraCondition(const CondParam &param);
50 
51     ConcurrentMap<std::string, std::string> appId2BundleNameMap_;
52     LRUBucket<std::string, StoreMetaData> metaDataBucket_ {32};
53     static constexpr const char *DEFAULT_USER = "0";
54 };
55 } // namespace OHOS::DistributedData
56 #endif // OHOS_DISTRIBUTED_DATA_SERVICES_SERVICE_PERMISSION_PERMIT_DELEGATE_H
57