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
32namespace art {
33
34class ZipArchive;
35class MemMap;
36
37class 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:
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
58class 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
66  ~ZipArchive() {
67    CloseArchive(handle_);
68  }
69
70 private:
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