1 /* 2 * Copyright (c) 2024-2024 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 SIGNATRUETOOLS_HAPFILEDATASOURCE_H 16 #define SIGNATRUETOOLS_HAPFILEDATASOURCE_H 17 18 #include "data_source.h" 19 #include "random_access_file.h" 20 #include "digest_parameter.h" 21 22 namespace OHOS { 23 namespace SignatureTools { 24 25 class FileDataSource : public DataSource { 26 public: 27 FileDataSource(RandomAccessFile& hapFile, int64_t offset, int64_t size, int64_t position); 28 ~FileDataSource(); 29 bool HasRemaining() const override; 30 int64_t Remaining() const override; 31 void Reset() override; 32 bool ReadDataAndDigestUpdate(const DigestParameter& digestParam, int32_t chunkSize) override; 33 34 private: 35 RandomAccessFile& hapFileRandomAccess; 36 int64_t fileOffset; 37 int64_t sourceSize; 38 int64_t sourcePosition; 39 }; 40 } // namespace SignatureTools 41 } // namespace OHOS 42 #endif // SIGNATRUETOOLS_HAPFILEDATASOURCE_H 43