1 /* 2 * Copyright (C) 2008 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 ART_RUNTIME_ZIP_ARCHIVE_H_ 18 #define ART_RUNTIME_ZIP_ARCHIVE_H_ 19 20 #include <stdint.h> 21 #include <ziparchive/zip_archive.h> 22 #include <memory> 23 #include <string> 24 25 #include "base/logging.h" 26 #include "base/unix_file/random_access_file.h" 27 #include "globals.h" 28 #include "mem_map.h" 29 #include "os.h" 30 #include "safe_map.h" 31 32 namespace art { 33 34 class ZipArchive; 35 class MemMap; 36 37 class ZipEntry { 38 public: 39 bool ExtractToFile(File& file, std::string* error_msg); 40 MemMap* ExtractToMemMap(const char* zip_filename, const char* entry_filename, 41 std::string* error_msg); 42 virtual ~ZipEntry(); 43 44 uint32_t GetUncompressedLength(); 45 uint32_t GetCrc32(); 46 47 private: ZipEntry(ZipArchiveHandle handle,::ZipEntry * zip_entry)48 ZipEntry(ZipArchiveHandle handle, 49 ::ZipEntry* zip_entry) : handle_(handle), zip_entry_(zip_entry) {} 50 51 ZipArchiveHandle handle_; 52 ::ZipEntry* const zip_entry_; 53 54 friend class ZipArchive; 55 DISALLOW_COPY_AND_ASSIGN(ZipEntry); 56 }; 57 58 class ZipArchive { 59 public: 60 // return new ZipArchive instance on success, null on error. 61 static ZipArchive* Open(const char* filename, std::string* error_msg); 62 static ZipArchive* OpenFromFd(int fd, const char* filename, std::string* error_msg); 63 64 ZipEntry* Find(const char* name, std::string* error_msg) const; 65 ~ZipArchive()66 ~ZipArchive() { 67 CloseArchive(handle_); 68 } 69 70 private: ZipArchive(ZipArchiveHandle handle)71 explicit ZipArchive(ZipArchiveHandle handle) : handle_(handle) {} 72 73 friend class ZipEntry; 74 75 ZipArchiveHandle handle_; 76 77 DISALLOW_COPY_AND_ASSIGN(ZipArchive); 78 }; 79 80 } // namespace art 81 82 #endif // ART_RUNTIME_ZIP_ARCHIVE_H_ 83