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/*
* Copyright (C) 2017 bigbiff/Dees_Troy TeamWin
* This file is part of TWRP/TeamWin Recovery Project.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "zipwrap.hpp"
#include <string>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#ifdef USE_MINZIP
#include "minzip/Zip.h"
#include "minzip/SysUtil.h"
#else
#include <ziparchive/zip_archive.h>
#include "otautil/ZipUtil.h"
#include "otautil/SysUtil.h"
#endif
ZipWrap::ZipWrap() {
zip_open = false;
}
ZipWrap::~ZipWrap() {
if (zip_open)
Close();
}
bool ZipWrap::Open(const char* file, MemMapping* map) {
if (zip_open) {
printf("ZipWrap '%s' is already open\n", zip_file.c_str());
return true;
}
zip_file = file;
#ifdef USE_MINZIP
if (mzOpenZipArchive(map->addr, map->length, &Zip) != 0)
return false;
#else
if (OpenArchiveFromMemory(map->addr, map->length, file, &Zip) != 0)
return false;
#endif
zip_open = true;
return true;
}
void ZipWrap::Close() {
if (zip_open)
#ifdef USE_MINZIP
mzCloseZipArchive(&Zip);
#else
CloseArchive(Zip);
#endif
zip_open = false;
}
bool ZipWrap::EntryExists(const string& filename) {
#ifdef USE_MINZIP
const ZipEntry* file_location = mzFindZipEntry(&Zip, filename.c_str());
if (file_location != NULL)
return true;
return false;
#else
ZipString zip_string(filename.c_str());
ZipEntry file_entry;
if (FindEntry(Zip, zip_string, &file_entry) != 0)
return false;
return true;
#endif
}
bool ZipWrap::ExtractEntry(const string& source_file, const string& target_file, mode_t mode) {
if (access(target_file.c_str(), F_OK) == 0 && unlink(target_file.c_str()) != 0)
printf("Unable to unlink '%s': %s\n", target_file.c_str(), strerror(errno));
int fd = creat(target_file.c_str(), mode);
if (fd < 0) {
printf("Failed to create '%s'\n", target_file.c_str());
return false;
}
#ifdef USE_MINZIP
const ZipEntry* file_entry = mzFindZipEntry(&Zip, source_file.c_str());
if (file_entry == NULL) {
printf("'%s' does not exist in zip '%s'\n", source_file.c_str(), zip_file.c_str());
return false;
}
int ret_val = mzExtractZipEntryToFile(&Zip, file_entry, fd);
close(fd);
if (!ret_val) {
printf("Could not extract '%s'\n", target_file.c_str());
return false;
}
#else
ZipString zip_string(source_file.c_str());
ZipEntry file_entry;
if (FindEntry(Zip, zip_string, &file_entry) != 0)
return false;
int32_t ret_val = ExtractEntryToFile(Zip, &file_entry, fd);
close(fd);
if (ret_val != 0) {
printf("Could not extract '%s'\n", target_file.c_str());
return false;
}
#endif
return true;
}
bool ZipWrap::ExtractRecursive(const string& source_dir, const string& target_dir) {
struct utimbuf timestamp = { 1217592000, 1217592000 }; // 8/1/2008 default
#ifdef USE_MINZIP
return mzExtractRecursive(&Zip, source_dir.c_str(), target_dir.c_str(), ×tamp, NULL, NULL, NULL);
#else
return ExtractPackageRecursive(Zip, source_dir, target_dir, ×tamp, NULL);
#endif
}
long ZipWrap::GetUncompressedSize(const string& filename) {
#ifdef USE_MINZIP
const ZipEntry* file_entry = mzFindZipEntry(&Zip, filename.c_str());
if (file_entry == NULL) {
printf("'%s' does not exist in zip '%s'\n", filename.c_str(), zip_file.c_str());
return 0;
}
return file_entry->uncompLen;
#else
ZipString zip_string(filename.c_str());
ZipEntry file_entry;
if (FindEntry(Zip, zip_string, &file_entry) != 0)
return 0;
return file_entry.uncompressed_length;
#endif
}
bool ZipWrap::ExtractToBuffer(const string& filename, uint8_t* buffer) {
#ifdef USE_MINZIP
const ZipEntry* file_entry = mzFindZipEntry(&Zip, filename.c_str());
if (file_entry == NULL) {
printf("'%s' does not exist in zip '%s'\n", filename.c_str(), zip_file.c_str());
return false;
}
if (!mzExtractZipEntryToBuffer(&Zip, file_entry, buffer)) {
printf("Failed to read '%s'\n", filename.c_str());
return false;
}
#else
ZipString zip_string(filename.c_str());
ZipEntry file_entry;
if (FindEntry(Zip, zip_string, &file_entry) != 0)
return false;
if (ExtractToMemory(Zip, &file_entry, buffer, file_entry.uncompressed_length) != 0) {
printf("Failed to read '%s'\n", filename.c_str());
return false;
}
#endif
return true;
}
#ifdef USE_MINZIP
loff_t ZipWrap::GetEntryOffset(const string& filename) {
const ZipEntry* file_entry = mzFindZipEntry(&Zip, filename.c_str());
if (file_entry == NULL) {
printf("'%s' does not exist in zip '%s'\n", filename.c_str(), zip_file.c_str());
return 0;
}
return mzGetZipEntryOffset(file_entry);
}
#else
off64_t ZipWrap::GetEntryOffset(const string& filename) {
ZipString zip_string(filename.c_str());
ZipEntry file_entry;
if (FindEntry(Zip, zip_string, &file_entry) != 0) {
printf("'%s' does not exist in zip '%s'\n", filename.c_str(), zip_file.c_str());
return 0;
}
return file_entry.offset;
}
ZipArchiveHandle ZipWrap::GetZipArchiveHandle() {
return Zip;
}
#endif
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