/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <inttypes.h>
#import "OFDate.h"
#import "OFSet.h"
#import "OFApplication.h"
#import "OFFileManager.h"
#import "OFStdIOStream.h"
#import "OFLocalization.h"
#import "TarArchive.h"
#import "OFZIP.h"
#ifndef S_IRWXG
# define S_IRWXG 0
#endif
#ifndef S_IRWXO
# define S_IRWXO 0
#endif
static OFZIP *app;
static void
setPermissions(OFString *path, OFTarArchiveEntry *entry)
{
#ifdef OF_HAVE_CHMOD
uint32_t mode = [entry mode];
/* Only allow modes that are safe */
mode &= (S_IRWXU | S_IRWXG | S_IRWXO);
[[OFFileManager defaultManager]
changePermissionsOfItemAtPath: path
permissions: mode];
#endif
}
@implementation TarArchive
+ (void)initialize
{
if (self == [TarArchive class])
app = (OFZIP *)[[OFApplication sharedApplication] delegate];
}
+ (instancetype)archiveWithStream: (OF_KINDOF(OFStream *))stream
{
return [[[self alloc] initWithStream: stream] autorelease];
}
- initWithStream: (OF_KINDOF(OFStream *))stream
{
self = [super init];
@try {
_archive = [[OFTarArchive alloc] initWithStream: stream];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_archive release];
[super dealloc];
}
- (void)listFiles
{
OFTarArchiveEntry *entry;
while ((entry = [_archive nextEntry]) != nil) {
void *pool = objc_autoreleasePoolPush();
[of_stdout writeLine: [entry fileName]];
if (app->_outputLevel >= 1) {
OFString *date = [[entry modificationDate]
localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
OFString *size = [OFString stringWithFormat:
@"%" PRIu64, [entry size]];
OFString *mode = [OFString stringWithFormat:
@"%06o", [entry mode]];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_size",
@"Size: %[size] bytes",
@"size", size)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_mode",
@"Mode: %[mode]",
@"mode", mode)];
if ([entry owner] != nil) {
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_owner",
@"Owner: %[owner]",
@"owner", [entry owner])];
}
if ([entry group] != nil) {
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_group",
@"Group: %[group]",
@"group", [entry group])];
}
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_modification_date",
@"Modification date: %[date]",
@"date", date)];
}
if (app->_outputLevel >= 2) {
[of_stdout writeString: @"\t"];
switch ([entry type]) {
case OF_TAR_ARCHIVE_ENTRY_TYPE_FILE:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_normal",
@"Type: Normal file")];
break;
case OF_TAR_ARCHIVE_ENTRY_TYPE_LINK:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_hardlink",
@"Type: Hard link")];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_link_target",
@"Target file name: %[target]",
@"target", [entry targetFileName])];
break;
case OF_TAR_ARCHIVE_ENTRY_TYPE_SYMLINK:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_symlink",
@"Type: Symbolic link")];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_link_target",
@"Target file name: %[target]",
@"target", [entry targetFileName])];
break;
case OF_TAR_ARCHIVE_ENTRY_TYPE_CHARACTER_DEVICE: {
OFString *majorString = [OFString
stringWithFormat: @"%d",
[entry deviceMajor]];
OFString *minorString = [OFString
stringWithFormat: @"%d",
[entry deviceMinor]];
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_character_device",
@"Type: Character device")];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_device_major",
@"Device major: %[major]",
@"major", majorString)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_device_minor",
@"Device minor: %[minor]",
@"minor", minorString)];
break;
}
case OF_TAR_ARCHIVE_ENTRY_TYPE_BLOCK_DEVICE: {
OFString *majorString = [OFString
stringWithFormat: @"%d",
[entry deviceMajor]];
OFString *minorString = [OFString
stringWithFormat: @"%d",
[entry deviceMinor]];
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_block_device",
@"Type: Block device")];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_device_major",
@"Device major: %[major]",
@"major", majorString)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_device_minor",
@"Device minor: %[minor]",
@"minor", minorString)];
break;
}
case OF_TAR_ARCHIVE_ENTRY_TYPE_DIRECTORY:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_directory",
@"Type: Directory")];
break;
case OF_TAR_ARCHIVE_ENTRY_TYPE_FIFO:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_fifo",
@"Type: FIFO")];
break;
case OF_TAR_ARCHIVE_ENTRY_TYPE_CONTIGUOUS_FILE:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_contiguous_file",
@"Type: Contiguous file")];
break;
default:
[of_stdout writeLine: OF_LOCALIZED(
@"list_type_unknown",
@"Type: Unknown")];
break;
}
}
objc_autoreleasePoolPop(pool);
}
}
- (void)extractFiles: (OFArray OF_GENERIC(OFString *) *)files
{
OFFileManager *fileManager = [OFFileManager defaultManager];
bool all = ([files count] == 0);
OFMutableSet OF_GENERIC(OFString *) *missing =
[OFMutableSet setWithArray: files];
OFTarArchiveEntry *entry;
while ((entry = [_archive nextEntry]) != nil) {
void *pool = objc_autoreleasePoolPush();
OFString *fileName = [entry fileName];
OFString *outFileName = [fileName stringByStandardizingPath];
OFArray OF_GENERIC(OFString *) *pathComponents;
OFString *directory;
OFFile *output;
uint64_t written = 0, size = [entry size];
int8_t percent = -1, newPercent;
if (!all && ![files containsObject: fileName])
continue;
if ([entry type] != OF_TAR_ARCHIVE_ENTRY_TYPE_FILE) {
if (app->_outputLevel >= 0)
[of_stdout writeLine: OF_LOCALIZED(
@"skipping_file",
@"Skipping %[file]...",
@"file", fileName)];
continue;
}
[missing removeObject: fileName];
#if !defined(OF_WINDOWS) && !defined(OF_MSDOS)
if ([outFileName hasPrefix: @"/"]) {
#else
if ([outFileName hasPrefix: @"/"] ||
[outFileName containsString: @":"]) {
#endif
[of_stderr writeLine: OF_LOCALIZED(
@"refusing_to_extract_file",
@"Refusing to extract %[file]!",
@"file", fileName)];
app->_exitStatus = 1;
goto outer_loop_end;
}
pathComponents = [outFileName pathComponents];
for (OFString *component in pathComponents) {
if ([component isEqual: OF_PATH_PARENT_DIRECTORY]) {
[of_stderr writeLine: OF_LOCALIZED(
@"refusing_to_extract_file",
@"Refusing to extract %[file]!",
@"file", fileName)];
app->_exitStatus = 1;
goto outer_loop_end;
}
}
outFileName = [OFString pathWithComponents: pathComponents];
if (app->_outputLevel >= 0)
[of_stdout writeString: OF_LOCALIZED(@"extracting_file",
@"Extracting %[file]...",
@"file", fileName)];
if ([fileName hasSuffix: @"/"]) {
[fileManager createDirectoryAtPath: outFileName
createParents: true];
setPermissions(outFileName, entry);
if (app->_outputLevel >= 0) {
[of_stdout writeString: @"\r"];
[of_stdout writeLine: OF_LOCALIZED(
@"extracting_file_done",
@"Extracting %[file]... done",
@"file", fileName)];
}
goto outer_loop_end;
}
directory = [outFileName stringByDeletingLastPathComponent];
if (![fileManager directoryExistsAtPath: directory])
[fileManager createDirectoryAtPath: directory
createParents: true];
if (![app shouldExtractFile: fileName
outFileName: outFileName])
goto outer_loop_end;
output = [OFFile fileWithPath: outFileName
mode: @"wb"];
setPermissions(outFileName, entry);
while (![entry isAtEndOfStream]) {
ssize_t length = [app copyBlockFromStream: entry
toStream: output
fileName: fileName];
if (length < 0) {
app->_exitStatus = 1;
goto outer_loop_end;
}
written += length;
newPercent = (written == size
? 100 : (int8_t)(written * 100 / size));
if (app->_outputLevel >= 0 && percent != newPercent) {
OFString *percentString;
percent = newPercent;
percentString = [OFString stringWithFormat:
@"%3u", percent];
[of_stdout writeString: @"\r"];
[of_stdout writeString: OF_LOCALIZED(
@"extracting_file_percent",
@"Extracting %[file]... %[percent]%",
@"file", fileName,
@"percent", percentString)];
}
}
if (app->_outputLevel >= 0) {
[of_stdout writeString: @"\r"];
[of_stdout writeLine: OF_LOCALIZED(
@"extracting_file_done",
@"Extracting %[file]... done",
@"file", fileName)];
}
outer_loop_end:
objc_autoreleasePoolPop(pool);
}
if ([missing count] > 0) {
for (OFString *file in missing)
[of_stderr writeLine: OF_LOCALIZED(
@"file_not_in_archive",
@"File %[file] is not in the archive!",
@"file", file)];
app->_exitStatus = 1;
}
}
- (void)printFiles: (OFArray OF_GENERIC(OFString *) *)files_
{
OFMutableSet *files;
OFTarArchiveEntry *entry;
if ([files_ count] < 1) {
[of_stderr writeLine: OF_LOCALIZED(@"print_no_file_specified",
@"Need one or more files to print!")];
app->_exitStatus = 1;
return;
}
files = [OFMutableSet setWithArray: files_];
while ((entry = [_archive nextEntry]) != nil) {
OFString *fileName = [entry fileName];
if (![files containsObject: fileName])
continue;
while (![entry isAtEndOfStream]) {
ssize_t length = [app copyBlockFromStream: entry
toStream: of_stdout
fileName: fileName];
if (length < 0) {
app->_exitStatus = 1;
return;
}
}
[files removeObject: fileName];
[entry close];
if ([files count] == 0)
break;
}
for (OFString *file in files) {
[of_stderr writeLine: OF_LOCALIZED(@"file_not_in_archive",
@"File %[file] is not in the archive!",
@"file", file)];
app->_exitStatus = 1;
}
}
@end