1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121 | /**************************************************************************/
/* file_access_zip.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef FILE_ACCESS_ZIP_H
#define FILE_ACCESS_ZIP_H
#ifdef MINIZIP_ENABLED
#include "core/io/file_access_pack.h"
#include "core/map.h"
#include "thirdparty/minizip/unzip.h"
#include <stdlib.h>
class ZipArchive : public PackSource {
public:
struct File {
int package;
unz_file_pos file_pos;
File() {
package = -1;
};
};
private:
struct Package {
String filename;
unzFile zfile;
};
Vector<Package> packages;
Map<String, File> files;
static ZipArchive *instance;
FileAccess::CreateFunc fa_create_func;
public:
void close_handle(unzFile p_file) const;
unzFile get_file_handle(String p_file) const;
Error add_package(String p_name);
bool file_exists(String p_name) const;
virtual bool try_open_pack(const String &p_path, bool p_replace_files, uint64_t p_offset);
FileAccess *get_file(const String &p_path, PackedData::PackedFile *p_file);
static ZipArchive *get_singleton();
ZipArchive();
~ZipArchive();
};
class FileAccessZip : public FileAccess {
unzFile zfile = nullptr;
unz_file_info64 file_info;
mutable bool at_eof;
public:
virtual Error _open(const String &p_path, int p_mode_flags); ///< open a file<--- _open is a virtual function
virtual void close(); ///< close a file<--- close is a virtual function
virtual bool is_open() const; ///< true when file is open
virtual void seek(uint64_t p_position); ///< seek to a given position
virtual void seek_end(int64_t p_position = 0); ///< seek from the end of file
virtual uint64_t get_position() const; ///< get position in the file
virtual uint64_t get_len() const; ///< get size of the file
virtual bool eof_reached() const; ///< reading passed EOF
virtual uint8_t get_8() const; ///< get a byte
virtual uint64_t get_buffer(uint8_t *p_dst, uint64_t p_length) const;
virtual Error get_error() const; ///< get last error
virtual void flush();
virtual void store_8(uint8_t p_dest); ///< store a byte
virtual bool file_exists(const String &p_name); ///< return true if a file exists
virtual uint64_t _get_modified_time(const String &p_file) { return 0; } // todo
virtual uint32_t _get_unix_permissions(const String &p_file) { return 0; }
virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions) { return FAILED; }
FileAccessZip(const String &p_path, const PackedData::PackedFile &p_file);
~FileAccessZip();
};
#endif // MINIZIP_ENABLED
#endif // FILE_ACCESS_ZIP_H
|