1 /*
2  * Copyright (C) 2021 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 HAP_BYTEBUFFER_DATASOURCE_H
16 #define HAP_BYTEBUFFER_DATASOURCE_H
17 
18 #include "common/data_source.h"
19 #include "common/export_define.h"
20 #include "common/hap_byte_buffer.h"
21 #include "util/digest_parameter.h"
22 
23 namespace OHOS {
24 namespace Security {
25 namespace Verify {
26 class HapByteBufferDataSource : public DataSource {
27 public:
28     DLL_EXPORT HapByteBufferDataSource(HapByteBuffer& hapBuffer);
29     DLL_EXPORT ~HapByteBufferDataSource();
30     bool HasRemaining() const override;
31     long long Remaining() const override;
32     void Reset() override;
33     bool ReadDataAndDigestUpdate(const DigestParameter& digestParam, int32_t chunkSize) override;
34 
35 private:
36     HapByteBuffer& hapByteBuffer;
37 };
38 } // namespace Verify
39 } // namespace Security
40 } // namespace OHOS
41 #endif // HAP_BYTEBUFFER_DATASOURCE_H
42