/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018, 2019, 2020
* Jonathan Schleifer <js@nil.im>
*
* 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"
#import "OFApplication.h"
#import "OFDate.h"
#import "OFFileManager.h"
#import "OFLocale.h"
#import "OFNumber.h"
#import "OFSet.h"
#import "OFStdIOStream.h"
#import "OFString.h"
#import "LHAArchive.h"
#import "OFArc.h"
static OFArc *app;
static OFString *
indent(OFString *string)
{
return [string stringByReplacingOccurrencesOfString: @"\n"
withString: @"\n\t"];
}
static void
setPermissions(OFString *path, OFLHAArchiveEntry *entry)
{
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
OFNumber *mode = entry.mode;
if (mode == nil)
return;
of_file_attributes_t attributes = [OFDictionary
dictionaryWithObject: mode
forKey: of_file_attribute_key_posix_permissions];
[[OFFileManager defaultManager] setAttributes: attributes
ofItemAtPath: path];
#endif
}
static void
setModificationDate(OFString *path, OFLHAArchiveEntry *entry)
{
OFDate *modificationDate = entry.modificationDate;
of_file_attributes_t attributes;
if (modificationDate == nil) {
/*
* Fall back to the original date if we have no modification
* date, as the modification date is a UNIX extension.
*/
modificationDate = entry.date;
if (modificationDate == nil)
return;
}
attributes = [OFDictionary
dictionaryWithObject: modificationDate
forKey: of_file_attribute_key_modification_date];
[[OFFileManager defaultManager] setAttributes: attributes
ofItemAtPath: path];
}
@implementation LHAArchive
+ (void)initialize
{
if (self == [LHAArchive class])
app = (OFArc *)[OFApplication sharedApplication].delegate;
}
+ (instancetype)archiveWithStream: (OF_KINDOF(OFStream *))stream
mode: (OFString *)mode
encoding: (of_string_encoding_t)encoding
{
return [[[self alloc] initWithStream: stream
mode: mode
encoding: encoding] autorelease];
}
- (instancetype)initWithStream: (OF_KINDOF(OFStream *))stream
mode: (OFString *)mode
encoding: (of_string_encoding_t)encoding
{
self = [super init];
@try {
_archive = [[OFLHAArchive alloc] initWithStream: stream
mode: mode];
if (encoding != OF_STRING_ENCODING_AUTODETECT)
_archive.encoding = encoding;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_archive release];
[super dealloc];
}
- (void)listFiles
{
OFLHAArchiveEntry *entry;
while ((entry = [_archive nextEntry]) != nil) {
void *pool = objc_autoreleasePoolPush();
[of_stdout writeLine: entry.fileName];
if (app->_outputLevel >= 1) {
OFString *date = [entry.date
localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
OFString *compressedSize = [OFString stringWithFormat:
@"%" PRIu32, entry.compressedSize];
OFString *uncompressedSize = [OFString stringWithFormat:
@"%" PRIu32, entry.uncompressedSize];
OFString *CRC16 = [OFString stringWithFormat:
@"%04" PRIX16, entry.CRC16];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_compressed_size",
[@"["
@" 'Compressed: ',"
@" ["
@" {'size == 1': '1 byte'},"
@" {'': '%[size] bytes'}"
@" ]"
@"]" JSONValue],
@"size", compressedSize)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_uncompressed_size",
[@"["
@" 'Uncompressed: ',"
@" ["
@" {'size == 1': '1 byte'},"
@" {'': '%[size] bytes'}"
@" ]"
@"]" JSONValue],
@"size", uncompressedSize)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_compression_method",
@"Compression method: %[method]",
@"method", entry.compressionMethod)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_crc16",
@"CRC16: %[crc16]",
@"crc16", CRC16)];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_date",
@"Date: %[date]",
@"date", date)];
if (entry.mode != nil) {
OFString *modeString = [OFString
stringWithFormat:
@"%" PRIo16, entry.mode.uInt16Value];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_mode",
@"Mode: %[mode]",
@"mode", modeString)];
}
if (entry.UID != nil) {
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_uid",
@"UID: %[uid]",
@"uid", entry.UID)];
}
if (entry.GID != nil) {
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(@"list_gid",
@"GID: %[gid]",
@"gid", entry.GID)];
}
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)];
}
if (app->_outputLevel >= 2) {
OFString *headerLevel = [OFString
stringWithFormat: @"%" PRIu8,
entry.headerLevel];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_header_level",
@"Header level: %[level]",
@"level", headerLevel)];
if (entry.operatingSystemIdentifier != '\0') {
OFString *OSID =
[OFString stringWithFormat: @"%c",
entry.operatingSystemIdentifier];
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_osid",
@"Operating system identifier: "
"%[osid]",
@"osid", OSID)];
}
if (entry.modificationDate != nil) {
OFString *modificationDate =
entry.modificationDate.description;
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_modification_date",
@"Modification date: %[date]",
@"date", modificationDate)];
}
}
if (app->_outputLevel >= 3) {
OFString *extensions =
indent(entry.extensions.description);
[of_stdout writeString: @"\t"];
[of_stdout writeLine: OF_LOCALIZED(
@"list_extensions",
@"Extensions: %[extensions]",
@"extensions", extensions)];
}
}
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];
OFLHAArchiveEntry *entry;
while ((entry = [_archive nextEntry]) != nil) {
void *pool = objc_autoreleasePoolPush();
OFString *fileName = entry.fileName;
OFString *outFileName, *directory;
OFFile *output;
OFStream *stream;
uint64_t written = 0, size = entry.uncompressedSize;
int8_t percent = -1, newPercent;
if (!all && ![files containsObject: fileName])
continue;
[missing removeObject: fileName];
outFileName = [app safeLocalPathForPath: fileName];
if (outFileName == nil) {
[of_stderr writeLine: OF_LOCALIZED(
@"refusing_to_extract_file",
@"Refusing to extract %[file]!",
@"file", fileName)];
app->_exitStatus = 1;
goto outer_loop_end;
}
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);
setModificationDate(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;
stream = [_archive streamForReadingCurrentEntry];
output = [OFFile fileWithPath: outFileName
mode: @"w"];
setPermissions(outFileName, entry);
while (!stream.atEndOfStream) {
ssize_t length = [app copyBlockFromStream: stream
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)];
}
}
[output close];
setModificationDate(outFileName, entry);
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;
OFLHAArchiveEntry *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;
OFStream *stream;
if (![files containsObject: fileName])
continue;
stream = [_archive streamForReadingCurrentEntry];
while (!stream.atEndOfStream) {
ssize_t length = [app copyBlockFromStream: stream
toStream: of_stdout
fileName: fileName];
if (length < 0) {
app->_exitStatus = 1;
return;
}
}
[files removeObject: fileName];
[stream 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;
}
}
- (void)addFiles: (OFArray OF_GENERIC(OFString *) *)files
{
OFFileManager *fileManager = [OFFileManager defaultManager];
if (files.count < 1) {
[of_stderr writeLine: OF_LOCALIZED(@"add_no_file_specified",
@"Need one or more files to add!")];
app->_exitStatus = 1;
return;
}
for (OFString *fileName in files) {
void *pool = objc_autoreleasePoolPush();
of_file_attributes_t attributes;
of_file_type_t type;
OFMutableLHAArchiveEntry *entry;
OFStream *output;
if (app->_outputLevel >= 0)
[of_stdout writeString: OF_LOCALIZED(@"adding_file",
@"Adding %[file]...",
@"file", fileName)];
attributes = [fileManager attributesOfItemAtPath: fileName];
type = attributes.fileType;
entry = [OFMutableLHAArchiveEntry entryWithFileName: fileName];
#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
entry.mode = [OFNumber numberWithUInt16:
attributes.filePOSIXPermissions];
#endif
entry.date = attributes.fileModificationDate;
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
entry.UID =
[OFNumber numberWithUInt16: attributes.filePOSIXUID];
entry.GID =
[OFNumber numberWithUInt16: attributes.filePOSIXGID];
entry.owner = attributes.fileOwner;
entry.group = attributes.fileGroup;
#endif
if ([type isEqual: of_file_type_directory])
entry.compressionMethod = @"-lhd-";
output = [_archive streamForWritingEntry: entry];
if ([type isEqual: of_file_type_regular]) {
uintmax_t written = 0, size = attributes.fileSize;
int8_t percent = -1, newPercent;
OFFile *input = [OFFile fileWithPath: fileName
mode: @"r"];
while (!input.atEndOfStream) {
ssize_t length = [app
copyBlockFromStream: input
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(
@"adding_file_percent",
@"Adding %[file]... %[percent]%",
@"file", fileName,
@"percent", percentString)];
}
}
}
if (app->_outputLevel >= 0) {
[of_stdout writeString: @"\r"];
[of_stdout writeLine: OF_LOCALIZED(
@"adding_file_done",
@"Adding %[file]... done",
@"file", fileName)];
}
[output close];
outer_loop_end:
objc_autoreleasePoolPop(pool);
}
[_archive close];
}
@end