mirror of
https://github.com/godotengine/godot
synced 2024-11-02 08:18:44 +00:00
351 lines
9.5 KiB
C++
351 lines
9.5 KiB
C++
/**************************************************************************/
|
|
/* file_access_zip.cpp */
|
|
/**************************************************************************/
|
|
/* 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. */
|
|
/**************************************************************************/
|
|
|
|
#ifdef MINIZIP_ENABLED
|
|
|
|
#include "file_access_zip.h"
|
|
|
|
#include "core/io/file_access.h"
|
|
|
|
ZipArchive *ZipArchive::instance = nullptr;
|
|
|
|
extern "C" {
|
|
|
|
struct ZipData {
|
|
Ref<FileAccess> f;
|
|
};
|
|
|
|
static void *godot_open(voidpf opaque, const char *p_fname, int mode) {
|
|
if (mode & ZLIB_FILEFUNC_MODE_WRITE) {
|
|
return nullptr;
|
|
}
|
|
|
|
Ref<FileAccess> f = FileAccess::open(String::utf8(p_fname), FileAccess::READ);
|
|
ERR_FAIL_COND_V(f.is_null(), nullptr);
|
|
|
|
ZipData *zd = memnew(ZipData);
|
|
zd->f = f;
|
|
return zd;
|
|
}
|
|
|
|
static uLong godot_read(voidpf opaque, voidpf stream, void *buf, uLong size) {
|
|
ZipData *zd = (ZipData *)stream;
|
|
zd->f->get_buffer((uint8_t *)buf, size);
|
|
return size;
|
|
}
|
|
|
|
static uLong godot_write(voidpf opaque, voidpf stream, const void *buf, uLong size) {
|
|
return 0;
|
|
}
|
|
|
|
static long godot_tell(voidpf opaque, voidpf stream) {
|
|
ZipData *zd = (ZipData *)stream;
|
|
return zd->f->get_position();
|
|
}
|
|
|
|
static long godot_seek(voidpf opaque, voidpf stream, uLong offset, int origin) {
|
|
ZipData *zd = (ZipData *)stream;
|
|
|
|
uint64_t pos = offset;
|
|
switch (origin) {
|
|
case ZLIB_FILEFUNC_SEEK_CUR:
|
|
pos = zd->f->get_position() + offset;
|
|
break;
|
|
case ZLIB_FILEFUNC_SEEK_END:
|
|
pos = zd->f->get_length() + offset;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
zd->f->seek(pos);
|
|
return 0;
|
|
}
|
|
|
|
static int godot_close(voidpf opaque, voidpf stream) {
|
|
ZipData *zd = (ZipData *)stream;
|
|
memdelete(zd);
|
|
return 0;
|
|
}
|
|
|
|
static int godot_testerror(voidpf opaque, voidpf stream) {
|
|
ZipData *zd = (ZipData *)stream;
|
|
return zd->f->get_error() != OK ? 1 : 0;
|
|
}
|
|
|
|
static voidpf godot_alloc(voidpf opaque, uInt items, uInt size) {
|
|
return memalloc((size_t)items * size);
|
|
}
|
|
|
|
static void godot_free(voidpf opaque, voidpf address) {
|
|
memfree(address);
|
|
}
|
|
} // extern "C"
|
|
|
|
void ZipArchive::close_handle(unzFile p_file) const {
|
|
ERR_FAIL_NULL_MSG(p_file, "Cannot close a file if none is open.");
|
|
unzCloseCurrentFile(p_file);
|
|
unzClose(p_file);
|
|
}
|
|
|
|
unzFile ZipArchive::get_file_handle(const String &p_file) const {
|
|
ERR_FAIL_COND_V_MSG(!file_exists(p_file), nullptr, "File '" + p_file + " doesn't exist.");
|
|
File file = files[p_file];
|
|
|
|
zlib_filefunc_def io;
|
|
memset(&io, 0, sizeof(io));
|
|
|
|
io.opaque = nullptr;
|
|
io.zopen_file = godot_open;
|
|
io.zread_file = godot_read;
|
|
io.zwrite_file = godot_write;
|
|
|
|
io.ztell_file = godot_tell;
|
|
io.zseek_file = godot_seek;
|
|
io.zclose_file = godot_close;
|
|
io.zerror_file = godot_testerror;
|
|
|
|
io.alloc_mem = godot_alloc;
|
|
io.free_mem = godot_free;
|
|
|
|
unzFile pkg = unzOpen2(packages[file.package].filename.utf8().get_data(), &io);
|
|
ERR_FAIL_NULL_V_MSG(pkg, nullptr, "Cannot open file '" + packages[file.package].filename + "'.");
|
|
int unz_err = unzGoToFilePos(pkg, &file.file_pos);
|
|
if (unz_err != UNZ_OK || unzOpenCurrentFile(pkg) != UNZ_OK) {
|
|
unzClose(pkg);
|
|
ERR_FAIL_V(nullptr);
|
|
}
|
|
|
|
return pkg;
|
|
}
|
|
|
|
bool ZipArchive::try_open_pack(const String &p_path, bool p_replace_files, uint64_t p_offset = 0) {
|
|
// load with offset feature only supported for PCK files
|
|
ERR_FAIL_COND_V_MSG(p_offset != 0, false, "Invalid PCK data. Note that loading files with a non-zero offset isn't supported with ZIP archives.");
|
|
|
|
if (p_path.get_extension().nocasecmp_to("zip") != 0 && p_path.get_extension().nocasecmp_to("pcz") != 0) {
|
|
return false;
|
|
}
|
|
|
|
zlib_filefunc_def io;
|
|
memset(&io, 0, sizeof(io));
|
|
|
|
io.opaque = nullptr;
|
|
io.zopen_file = godot_open;
|
|
io.zread_file = godot_read;
|
|
io.zwrite_file = godot_write;
|
|
|
|
io.ztell_file = godot_tell;
|
|
io.zseek_file = godot_seek;
|
|
io.zclose_file = godot_close;
|
|
io.zerror_file = godot_testerror;
|
|
|
|
unzFile zfile = unzOpen2(p_path.utf8().get_data(), &io);
|
|
ERR_FAIL_NULL_V(zfile, false);
|
|
|
|
unz_global_info64 gi;
|
|
int err = unzGetGlobalInfo64(zfile, &gi);
|
|
ERR_FAIL_COND_V(err != UNZ_OK, false);
|
|
|
|
Package pkg;
|
|
pkg.filename = p_path;
|
|
pkg.zfile = zfile;
|
|
packages.push_back(pkg);
|
|
int pkg_num = packages.size() - 1;
|
|
|
|
for (uint64_t i = 0; i < gi.number_entry; i++) {
|
|
char filename_inzip[256];
|
|
|
|
unz_file_info64 file_info;
|
|
err = unzGetCurrentFileInfo64(zfile, &file_info, filename_inzip, sizeof(filename_inzip), nullptr, 0, nullptr, 0);
|
|
ERR_CONTINUE(err != UNZ_OK);
|
|
|
|
File f;
|
|
f.package = pkg_num;
|
|
unzGetFilePos(zfile, &f.file_pos);
|
|
|
|
String fname = String("res://") + String::utf8(filename_inzip);
|
|
files[fname] = f;
|
|
|
|
uint8_t md5[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
|
PackedData::get_singleton()->add_path(p_path, fname, 1, 0, md5, this, p_replace_files, false);
|
|
//printf("packed data add path %s, %s\n", p_name.utf8().get_data(), fname.utf8().get_data());
|
|
|
|
if ((i + 1) < gi.number_entry) {
|
|
unzGoToNextFile(zfile);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ZipArchive::file_exists(const String &p_name) const {
|
|
return files.has(p_name);
|
|
}
|
|
|
|
Ref<FileAccess> ZipArchive::get_file(const String &p_path, PackedData::PackedFile *p_file) {
|
|
return memnew(FileAccessZip(p_path, *p_file));
|
|
}
|
|
|
|
ZipArchive *ZipArchive::get_singleton() {
|
|
if (instance == nullptr) {
|
|
instance = memnew(ZipArchive);
|
|
}
|
|
|
|
return instance;
|
|
}
|
|
|
|
ZipArchive::ZipArchive() {
|
|
instance = this;
|
|
}
|
|
|
|
ZipArchive::~ZipArchive() {
|
|
for (int i = 0; i < packages.size(); i++) {
|
|
unzClose(packages[i].zfile);
|
|
}
|
|
|
|
packages.clear();
|
|
}
|
|
|
|
Error FileAccessZip::open_internal(const String &p_path, int p_mode_flags) {
|
|
_close();
|
|
|
|
ERR_FAIL_COND_V(p_mode_flags & FileAccess::WRITE, FAILED);
|
|
ZipArchive *arch = ZipArchive::get_singleton();
|
|
ERR_FAIL_NULL_V(arch, FAILED);
|
|
zfile = arch->get_file_handle(p_path);
|
|
ERR_FAIL_NULL_V(zfile, FAILED);
|
|
|
|
int err = unzGetCurrentFileInfo64(zfile, &file_info, nullptr, 0, nullptr, 0, nullptr, 0);
|
|
ERR_FAIL_COND_V(err != UNZ_OK, FAILED);
|
|
|
|
return OK;
|
|
}
|
|
|
|
void FileAccessZip::_close() {
|
|
if (!zfile) {
|
|
return;
|
|
}
|
|
|
|
ZipArchive *arch = ZipArchive::get_singleton();
|
|
ERR_FAIL_NULL(arch);
|
|
arch->close_handle(zfile);
|
|
zfile = nullptr;
|
|
}
|
|
|
|
bool FileAccessZip::is_open() const {
|
|
return zfile != nullptr;
|
|
}
|
|
|
|
void FileAccessZip::seek(uint64_t p_position) {
|
|
ERR_FAIL_NULL(zfile);
|
|
|
|
unzSeekCurrentFile(zfile, p_position);
|
|
}
|
|
|
|
void FileAccessZip::seek_end(int64_t p_position) {
|
|
ERR_FAIL_NULL(zfile);
|
|
unzSeekCurrentFile(zfile, get_length() + p_position);
|
|
}
|
|
|
|
uint64_t FileAccessZip::get_position() const {
|
|
ERR_FAIL_NULL_V(zfile, 0);
|
|
return unztell(zfile);
|
|
}
|
|
|
|
uint64_t FileAccessZip::get_length() const {
|
|
ERR_FAIL_NULL_V(zfile, 0);
|
|
return file_info.uncompressed_size;
|
|
}
|
|
|
|
bool FileAccessZip::eof_reached() const {
|
|
ERR_FAIL_NULL_V(zfile, true);
|
|
|
|
return at_eof;
|
|
}
|
|
|
|
uint8_t FileAccessZip::get_8() const {
|
|
uint8_t ret = 0;
|
|
get_buffer(&ret, 1);
|
|
return ret;
|
|
}
|
|
|
|
uint64_t FileAccessZip::get_buffer(uint8_t *p_dst, uint64_t p_length) const {
|
|
ERR_FAIL_COND_V(!p_dst && p_length > 0, -1);
|
|
ERR_FAIL_NULL_V(zfile, -1);
|
|
|
|
at_eof = unzeof(zfile);
|
|
if (at_eof) {
|
|
return 0;
|
|
}
|
|
int64_t read = unzReadCurrentFile(zfile, p_dst, p_length);
|
|
ERR_FAIL_COND_V(read < 0, read);
|
|
if ((uint64_t)read < p_length) {
|
|
at_eof = true;
|
|
}
|
|
return read;
|
|
}
|
|
|
|
Error FileAccessZip::get_error() const {
|
|
if (!zfile) {
|
|
return ERR_UNCONFIGURED;
|
|
}
|
|
if (eof_reached()) {
|
|
return ERR_FILE_EOF;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
void FileAccessZip::flush() {
|
|
ERR_FAIL();
|
|
}
|
|
|
|
void FileAccessZip::store_8(uint8_t p_dest) {
|
|
ERR_FAIL();
|
|
}
|
|
|
|
bool FileAccessZip::file_exists(const String &p_name) {
|
|
return false;
|
|
}
|
|
|
|
void FileAccessZip::close() {
|
|
_close();
|
|
}
|
|
|
|
FileAccessZip::FileAccessZip(const String &p_path, const PackedData::PackedFile &p_file) {
|
|
open_internal(p_path, FileAccess::READ);
|
|
}
|
|
|
|
FileAccessZip::~FileAccessZip() {
|
|
_close();
|
|
}
|
|
|
|
#endif // MINIZIP_ENABLED
|