/*
* Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
*
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3.0 only,
* as published by the Free Software Foundation.
*
* This program 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 Lesser General Public License
* version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3.0 along with this program. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <errno.h>
#import "OFApplication.h"
#import "OFArray.h"
#import "OFDate.h"
#import "OFFile.h"
#import "OFFileManager.h"
#import "OFIRI.h"
#import "OFLocale.h"
#import "OFNumber.h"
#import "OFPair.h"
#import "OFSet.h"
#import "OFStdIOStream.h"
#import "OFString.h"
#import "LHAArchive.h"
#import "OFArc.h"
#import "OFSetItemAttributesFailedException.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 *POSIXPermissions = entry.POSIXPermissions;
if (POSIXPermissions != nil) {
OFFileAttributes attributes;
POSIXPermissions = [OFNumber numberWithUnsignedShort:
POSIXPermissions.unsignedShortValue & 0777];
attributes = [OFDictionary
dictionaryWithObject: POSIXPermissions
forKey: OFFilePOSIXPermissions];
[[OFFileManager defaultManager] setAttributes: attributes
ofItemAtPath: path];
}
#endif
[app quarantineFile: path];
}
static void
setModificationDate(OFString *path, OFLHAArchiveEntry *entry)
{
OFFileAttributes attributes = [OFDictionary
dictionaryWithObject: entry.modificationDate
forKey: OFFileModificationDate];
@try {
[[OFFileManager defaultManager] setAttributes: attributes
ofItemAtPath: path];
} @catch (OFSetItemAttributesFailedException *e) {
if (e.errNo != EISDIR)
@throw e;
}
}
@implementation LHAArchive
+ (void)initialize
{
if (self == [LHAArchive class])
app = (OFArc *)[OFApplication sharedApplication].delegate;
}
+ (instancetype)archiveWithIRI: (OFIRI *)IRI
stream: (OF_KINDOF(OFStream *))stream
mode: (OFString *)mode
encoding: (OFStringEncoding)encoding
{
return [[[self alloc] initWithIRI: IRI
stream: stream
mode: mode
encoding: encoding] autorelease];
}
- (instancetype)initWithIRI: (OFIRI *)IRI
stream: (OF_KINDOF(OFStream *))stream
mode: (OFString *)mode
encoding: (OFStringEncoding)encoding
{
self = [super init];
@try {
_archive = [[OFLHAArchive alloc] initWithStream: stream
mode: mode];
if (encoding != OFStringEncodingAutodetect)
_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();
[OFStdOut writeLine: entry.fileName];
if (app->_outputLevel >= 1) {
OFString *modificationDate = [entry.modificationDate
localDateStringWithFormat: @"%Y-%m-%d %H:%M:%S"];
OFString *compressedSize = [OFString stringWithFormat:
@"%llu", entry.compressedSize];
OFString *uncompressedSize = [OFString stringWithFormat:
@"%llu", entry.uncompressedSize];
OFString *CRC16 = [OFString stringWithFormat:
@"%04" PRIX16, entry.CRC16];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_compressed_size",
@"["
@" 'Compressed: ',"
@" ["
@" {'size == 1': '1 byte'},"
@" {'': '%[size] bytes'}"
@" ]"
@"]".objectByParsingJSON,
@"size", compressedSize)];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_uncompressed_size",
@"["
@" 'Uncompressed: ',"
@" ["
@" {'size == 1': '1 byte'},"
@" {'': '%[size] bytes'}"
@" ]"
@"]".objectByParsingJSON,
@"size", uncompressedSize)];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_compression_method",
@"Compression method: %[method]",
@"method", entry.compressionMethod)];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(@"list_crc16",
@"CRC16: %[crc16]",
@"crc16", CRC16)];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_modification_date",
@"Modification date: %[date]",
@"date", modificationDate)];
if (entry.POSIXPermissions != nil) {
OFString *permissionsString = [OFString
stringWithFormat: @"%llo",
entry.POSIXPermissions
.unsignedLongLongValue];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_posix_permissions",
@"POSIX permissions: %[perm]",
@"perm", permissionsString)];
}
if (entry.ownerAccountID != nil) {
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_owner_account_id",
@"Owner account ID: %[id]",
@"id", entry.ownerAccountID)];
}
if (entry.groupOwnerAccountID != nil) {
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(@"list_gid",
@"Group owner account ID: %[id]",
@"id", entry.groupOwnerAccountID)];
}
if (entry.ownerAccountName != nil) {
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_owner_account_name",
@"Owner account name: %[name]",
@"name", entry.ownerAccountName)];
}
if (entry.groupOwnerAccountName != nil) {
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_group_owner_account_name",
@"Group: %[name]",
@"name", entry.groupOwnerAccountName)];
}
if (app->_outputLevel >= 2) {
OFString *headerLevel = [OFString
stringWithFormat: @"%" PRIu8,
entry.headerLevel];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_header_level",
@"Header level: %[level]",
@"level", headerLevel)];
if (entry.operatingSystemIdentifier != '\0') {
OFString *OSID =
[OFString stringWithFormat: @"%c",
entry.operatingSystemIdentifier];
[OFStdOut writeString: @"\t"];
[OFStdOut writeLine: OF_LOCALIZED(
@"list_osid",
@"Operating system identifier: "
@"%[osid]",
@"osid", OSID)];
}
}
if (app->_outputLevel >= 3) {
OFString *extensions =
indent(entry.extensions.description);
[OFStdOut writeString: @"\t"];
[OFStdOut 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);
OFMutableArray *delayedModificationDates = [OFMutableArray array];
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;
unsigned long long 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) {
[OFStdErr writeLine: OF_LOCALIZED(
@"refusing_to_extract_file",
@"Refusing to extract %[file]!",
@"file", fileName)];
app->_exitStatus = 1;
goto outer_loop_end;
}
if (app->_outputLevel >= 0)
[OFStdOut writeString: OF_LOCALIZED(@"extracting_file",
@"Extracting %[file]...",
@"file", fileName)];
if ([fileName hasSuffix: @"/"]) {
[fileManager createDirectoryAtPath: outFileName
createParents: true];
setPermissions(outFileName, entry);
/*
* As creating a new file in a directory changes its
* modification date, we can only set it once all files
* have been created.
*/
[delayedModificationDates addObject:
[OFPair pairWithFirstObject: outFileName
secondObject: entry]];
if (app->_outputLevel >= 0) {
[OFStdOut writeString: @"\r"];
[OFStdOut 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];
[OFStdOut writeString: @"\r"];
[OFStdOut writeString: OF_LOCALIZED(
@"extracting_file_percent",
@"Extracting %[file]... %[percent]%",
@"file", fileName,
@"percent", percentString)];
}
}
[output close];
setModificationDate(outFileName, entry);
if (app->_outputLevel >= 0) {
[OFStdOut writeString: @"\r"];
[OFStdOut writeLine: OF_LOCALIZED(
@"extracting_file_done",
@"Extracting %[file]... done",
@"file", fileName)];
}
outer_loop_end:
objc_autoreleasePoolPop(pool);
}
for (OFPair *pair in delayedModificationDates)
setModificationDate(pair.firstObject, pair.secondObject);
if (missing.count > 0) {
for (OFString *file in missing)
[OFStdErr 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) {
[OFStdErr 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: OFStdOut
fileName: fileName];
if (length < 0) {
app->_exitStatus = 1;
return;
}
}
[files removeObject: fileName];
[stream close];
if (files.count == 0)
break;
}
for (OFString *file in files) {
[OFStdErr 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
archiveComment: (OFString *)archiveComment
{
OFFileManager *fileManager = [OFFileManager defaultManager];
for (OFString *fileName in files) {
void *pool = objc_autoreleasePoolPush();
OFFileAttributes attributes;
OFFileAttributeType type;
OFMutableLHAArchiveEntry *entry;
OFStream *output;
if (app->_outputLevel >= 0)
[OFStdOut 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.POSIXPermissions =
[attributes objectForKey: OFFilePOSIXPermissions];
#endif
entry.modificationDate = attributes.fileModificationDate;
#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
entry.ownerAccountID =
[attributes objectForKey: OFFileOwnerAccountID];
entry.groupOwnerAccountID =
[attributes objectForKey: OFFileGroupOwnerAccountID];
entry.ownerAccountName =
[attributes objectForKey: OFFileOwnerAccountName];
entry.groupOwnerAccountName =
[attributes objectForKey: OFFileGroupOwnerAccountName];
#endif
if ([type isEqual: OFFileTypeDirectory]) {
entry.compressionMethod = @"-lhd-";
if (![entry.fileName hasSuffix: @"/"])
entry.fileName = [entry.fileName
stringByAppendingString: @"/"];
}
output = [_archive streamForWritingEntry: entry];
if ([type isEqual: OFFileTypeRegular]) {
unsigned long long written = 0;
unsigned long long 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];
[OFStdOut writeString: @"\r"];
[OFStdOut writeString: OF_LOCALIZED(
@"adding_file_percent",
@"Adding %[file]... %[percent]%",
@"file", fileName,
@"percent", percentString)];
}
}
}
if (app->_outputLevel >= 0) {
[OFStdOut writeString: @"\r"];
[OFStdOut writeLine: OF_LOCALIZED(
@"adding_file_done",
@"Adding %[file]... done",
@"file", fileName)];
}
[output close];
outer_loop_end:
objc_autoreleasePoolPop(pool);
}
[_archive close];
}
@end