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/**
* Copyright (C) 2021 Saturneric <[email protected]>
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric <[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "ArchiveFileOperator.h"
#include <archive.h>
#include <archive_entry.h>
#include <fstream>
#include "core/utils/AsyncUtils.h"
namespace GpgFrontend {
struct ArchiveStruct {
struct archive *archive;
struct archive_entry *entry;
int fd;
bool is_open;
std::string name;
};
auto CopyData(struct archive *ar, struct archive *aw) -> int {
int r;
const void *buff;
size_t size;
int64_t offset;
for (;;) {
r = archive_read_data_block(ar, &buff, &size, &offset);
if (r == ARCHIVE_EOF) return (ARCHIVE_OK);
if (r != ARCHIVE_OK) {
SPDLOG_ERROR("archive_read_data_block() failed: {}",
archive_error_string(ar));
return (r);
}
r = archive_write_data_block(aw, buff, size, offset);
if (r != ARCHIVE_OK) {
SPDLOG_ERROR("archive_write_data_block() failed: {}",
archive_error_string(aw));
return (r);
}
}
}
void ArchiveFileOperator::NewArchive2Fd(
const std::filesystem::path &target_directory, int fd,
const OperationCallback &cb) {
RunIOOperaAsync(
[=](const DataObjectPtr &data_object) -> GFError {
struct archive *archive;
struct archive_entry *entry;
std::array<char, 8192> buff{};
archive = archive_write_new();
archive_write_add_filter_none(archive);
archive_write_set_format_pax_restricted(archive);
archive_write_open_fd(archive, fd);
for (const auto &file :
std::filesystem::recursive_directory_iterator(target_directory)) {
entry = archive_entry_new();
auto file_path = file.path().string();
archive_entry_set_pathname(entry, file_path.c_str());
archive_entry_set_filetype(entry, AE_IFREG);
archive_entry_set_perm(entry, 0644);
std::ifstream target_file(file_path, std::ifstream::binary);
if (!target_file) {
SPDLOG_ERROR("cannot open file: {}, abort...", file_path);
archive_entry_free(entry);
continue;
}
target_file.seekg(0, std::ios::end);
auto file_size = target_file.tellg();
target_file.seekg(0, std::ios::beg);
archive_entry_set_size(entry, file_size);
archive_write_header(archive, entry);
while (!target_file.eof()) {
target_file.read(buff.data(), buff.size());
std::streamsize const bytes_read = target_file.gcount();
archive_write_data(archive, buff.data(), bytes_read);
}
archive_entry_free(entry);
}
archive_write_close(archive);
archive_write_free(archive);
close(fd);
return 0;
},
cb, "archive_write_new");
}
void ArchiveFileOperator::ExtractArchiveFromFd(
int fd, const std::filesystem::path &target_path,
const OperationCallback &cb) {
SPDLOG_DEBUG("extract archive from fd start, cuurent thread: {}",
QThread::currentThread()->currentThreadId());
RunIOOperaAsync(
[=](const DataObjectPtr &data_object) -> GFError {
SPDLOG_DEBUG("extract archive from fd processing, cuurent thread: {}",
QThread::currentThread()->currentThreadId());
struct archive *archive;
struct archive *ext;
struct archive_entry *entry;
archive = archive_read_new();
ext = archive_write_disk_new();
archive_write_disk_set_options(ext, 0);
#ifndef NO_BZIP2_EXTRACT
archive_read_support_filter_bzip2(archive);
#endif
#ifndef NO_GZIP_EXTRACT
archive_read_support_filter_gzip(archive);
#endif
#ifndef NO_COMPRESS_EXTRACT
archive_read_support_filter_compress(archive);
#endif
#ifndef NO_TAR_EXTRACT
archive_read_support_format_tar(archive);
#endif
#ifndef NO_CPIO_EXTRACT
archive_read_support_format_cpio(archive);
#endif
#ifndef NO_LOOKUP
archive_write_disk_set_standard_lookup(ext);
#endif
archive_read_open_fd(archive, fd, 8192);
SPDLOG_ERROR("archive_read_open_fd() failed: {}",
archive_error_string(archive));
while (archive_read_next_header(archive, &entry) == ARCHIVE_OK) {
SPDLOG_DEBUG("add file: {}, size: {}, bytes: {}, file type: {}",
archive_entry_pathname_utf8(entry),
archive_entry_size(entry),
archive_entry_filetype(entry));
auto file_path =
std::filesystem::path(archive_entry_pathname_utf8(entry));
auto target_file_path = target_path / file_path;
archive_entry_set_pathname(entry, file_path.c_str());
auto r = archive_write_header(ext, entry);
if (r != ARCHIVE_OK) {
SPDLOG_ERROR("archive_write_header() failed: {}",
archive_error_string(ext));
}
r = CopyData(archive, ext);
if (r != ARCHIVE_OK) {
SPDLOG_ERROR("copy_data() failed: {}", archive_error_string(ext));
}
}
archive_read_free(archive);
archive_write_free(ext);
close(fd);
return 0;
},
cb, "archive_read_new");
}
void ArchiveFileOperator::ListArchive(
const std::filesystem::path &archive_path) {
struct archive *a;
struct archive_entry *entry;
int r;
a = archive_read_new();
archive_read_support_filter_all(a);
archive_read_support_format_all(a);
r = archive_read_open_filename(a, archive_path.u8string().c_str(),
10240); // Note 1
if (r != ARCHIVE_OK) return;
while (archive_read_next_header(a, &entry) == ARCHIVE_OK) {
SPDLOG_DEBUG("File: {}", archive_entry_pathname(entry));
SPDLOG_DEBUG("File Path: {}", archive_entry_pathname(entry));
archive_read_data_skip(a); // Note 2
}
r = archive_read_free(a); // Note 3
if (r != ARCHIVE_OK) return;
}
} // namespace GpgFrontend
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