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/*************************************************************************/
/* zip_reader.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#include "zip_reader.h"
#include "core/error/error_macros.h"
#include "core/io/zip_io.h"
Error ZIPReader::open(String p_path) {
if (fa.is_valid()) {
close();
}
zlib_filefunc_def io = zipio_create_io(&fa);
uzf = unzOpen2(p_path.utf8().get_data(), &io);
return uzf != NULL ? OK : FAILED;
}
Error ZIPReader::close() {
ERR_FAIL_COND_V_MSG(fa.is_null(), FAILED, "ZIPReader cannot be closed because it is not open.");
return unzClose(uzf) == UNZ_OK ? OK : FAILED;
}
PackedStringArray ZIPReader::get_files() {
ERR_FAIL_COND_V_MSG(fa.is_null(), PackedStringArray(), "ZIPReader must be opened before use.");
List<String> s;
if (unzGoToFirstFile(uzf) != UNZ_OK) {
return PackedStringArray();
}
do {
unz_file_info64 file_info;
char filename[256]; // Note filename is a path !
int err = unzGetCurrentFileInfo64(uzf, &file_info, filename, sizeof(filename), NULL, 0, NULL, 0);
if (err == UNZ_OK) {
s.push_back(filename);
} else {
// Assume filename buffer was too small
char *long_filename_buff = (char *)memalloc(file_info.size_filename);
int err2 = unzGetCurrentFileInfo64(uzf, NULL, long_filename_buff, sizeof(long_filename_buff), NULL, 0, NULL, 0);
if (err2 == UNZ_OK) {
s.push_back(long_filename_buff);
memfree(long_filename_buff);
}
}
} while (unzGoToNextFile(uzf) == UNZ_OK);
PackedStringArray arr;
arr.resize(s.size());
int idx = 0;
for (const List<String>::Element *E = s.front(); E; E = E->next()) {
arr.set(idx++, E->get());
}
return arr;
}
PackedByteArray ZIPReader::read_file(String p_path, bool p_case_sensitive) {
ERR_FAIL_COND_V_MSG(fa.is_null(), PackedByteArray(), "ZIPReader must be opened before use.");
int cs = p_case_sensitive ? 1 : 2;
if (unzLocateFile(uzf, p_path.utf8().get_data(), cs) != UNZ_OK) {
ERR_FAIL_V_MSG(PackedByteArray(), "File does not exist in zip archive: " + p_path);
}
if (unzOpenCurrentFile(uzf) != UNZ_OK) {
ERR_FAIL_V_MSG(PackedByteArray(), "Could not open file within zip archive.");
}
unz_file_info info;
unzGetCurrentFileInfo(uzf, &info, NULL, 0, NULL, 0, NULL, 0);
PackedByteArray data;
data.resize(info.uncompressed_size);
uint8_t *w = data.ptrw();
unzReadCurrentFile(uzf, &w[0], info.uncompressed_size);
unzCloseCurrentFile(uzf);
return data;
}
ZIPReader::ZIPReader() {}
ZIPReader::~ZIPReader() {
if (fa.is_valid()) {
close();
}
}
void ZIPReader::_bind_methods() {
ClassDB::bind_method(D_METHOD("open", "path"), &ZIPReader::open);
ClassDB::bind_method(D_METHOD("close"), &ZIPReader::close);
ClassDB::bind_method(D_METHOD("get_files"), &ZIPReader::get_files);
ClassDB::bind_method(D_METHOD("read_file", "path", "case_sensitive"), &ZIPReader::read_file, DEFVAL(Variant(true)));
}
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