1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef IDMAP2_INCLUDE_IDMAP2_ZIPFILE_H_ 18 #define IDMAP2_INCLUDE_IDMAP2_ZIPFILE_H_ 19 20 #include <memory> 21 #include <string> 22 23 #include "android-base/macros.h" 24 #include "idmap2/Result.h" 25 #include "ziparchive/zip_archive.h" 26 27 namespace android::idmap2 { 28 29 struct MemoryChunk { 30 size_t size; 31 uint8_t buf[0]; 32 33 static std::unique_ptr<MemoryChunk> Allocate(size_t size); 34 35 private: MemoryChunkMemoryChunk36 MemoryChunk() { 37 } 38 }; 39 40 class ZipFile { 41 public: 42 static std::unique_ptr<const ZipFile> Open(const std::string& path); 43 44 std::unique_ptr<const MemoryChunk> Uncompress(const std::string& entryPath) const; 45 Result<uint32_t> Crc(const std::string& entryPath) const; 46 47 ~ZipFile(); 48 49 private: ZipFile(const::ZipArchiveHandle handle)50 explicit ZipFile(const ::ZipArchiveHandle handle) : handle_(handle) { 51 } 52 53 const ::ZipArchiveHandle handle_; 54 55 DISALLOW_COPY_AND_ASSIGN(ZipFile); 56 }; 57 58 } // namespace android::idmap2 59 60 #endif // IDMAP2_INCLUDE_IDMAP2_ZIPFILE_H_ 61