ObjFW  Check-in [327e67021e]

 *
 * @brief A class which represents an entry in an LHA archive.
 */
@interface OFLHAArchiveEntry: OFObject <OFCopying, OFMutableCopying>
{
	OFString *_fileName, *_Nullable _directoryName, *_compressionMethod;
	uint32_t _compressedSize, _uncompressedSize;
	OFDate *_date;
	uint8_t _headerLevel;
	uint16_t _CRC16;
	uint8_t _operatingSystemIdentifier;
	OFString *_Nullable _fileComment;
	OFNumber *_Nullable _mode, *_Nullable _UID, *_Nullable _GID;
	OFString *_Nullable _owner, *_Nullable _group;
	OFDate *_Nullable _modificationDate;
	OFMutableArray OF_GENERIC(OFData *) *_extensions;
	OF_RESERVE_IVARS(OFLHAArchiveEntry, 4)
}

/**
 * @brief The file name of the entry.
 */

/**
 * @brief The uncompressed size of the entry's file.
 */
@property (readonly, nonatomic) uint32_t uncompressedSize;

/**
 * @brief The date of the file.
 */
@property (readonly, retain, nonatomic) OFDate *date;

/**
 * @brief The LHA level of the file.
 */
@property (readonly, nonatomic) uint8_t headerLevel;

/**

@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *owner;

/**
 * @brief The group of the file.
 */
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *group;

/**
 * @brief The date of the last modification of the file.
 */
@property OF_NULLABLE_PROPERTY (readonly, retain, nonatomic)
    OFDate *modificationDate;

/**
 * @brief The LHA extensions of the file.
 */
@property (readonly, copy, nonatomic) OFArray OF_GENERIC(OFData *) *extensions;

- (instancetype)init OF_UNAVAILABLE;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableLHAArchiveEntry.h"

- (instancetype)of_init
{
	self = [super init];

	@try {
		_compressionMethod = @"-lh0-";
		_date = [[OFDate alloc] initWithTimeIntervalSince1970: 0];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

		switch (_headerLevel) {
		case 0:
		case 1:;
			void *pool = objc_autoreleasePoolPush();
			uint8_t fileNameLength;
			OFString *tmp;

			_date = [parseMSDOSDate(date) retain];

			fileNameLength = [stream readInt8];
			tmp = [stream readStringWithLength: fileNameLength
						  encoding: encoding];
			tmp = [tmp stringByReplacingOccurrencesOfString: @"\\"
							     withString: @"/"];
			_fileName = [tmp copy];

			_CRC16 = [stream readLittleEndianInt16];

			if (_headerLevel == 1) {
				_operatingSystemIdentifier = [stream readInt8];

				readExtensions(self, stream, encoding, false);
			}

			objc_autoreleasePoolPop(pool);
			break;
		case 2:
			_date = [[OFDate alloc]
			    initWithTimeIntervalSince1970: date];

			_CRC16 = [stream readLittleEndianInt16];
			_operatingSystemIdentifier = [stream readInt8];

			readExtensions(self, stream, encoding, true);

}

- (void)dealloc
{
	[_compressionMethod release];
	[_fileName release];
	[_directoryName release];
	[_date release];
	[_fileComment release];
	[_mode release];
	[_UID release];
	[_GID release];
	[_owner release];
	[_group release];
	[_extensions release];

	OFLHAArchiveEntry *copy = [[OFMutableLHAArchiveEntry alloc]
	    initWithFileName: _fileName];

	@try {
		[copy->_compressionMethod release];
		copy->_compressionMethod = nil;

		[copy->_date release];
		copy->_date = nil;

		copy->_directoryName = [_directoryName copy];
		copy->_compressionMethod = [_compressionMethod copy];
		copy->_compressedSize = _compressedSize;
		copy->_uncompressedSize = _uncompressedSize;
		copy->_date = [_date copy];
		copy->_headerLevel = _headerLevel;
		copy->_CRC16 = _CRC16;
		copy->_operatingSystemIdentifier = _operatingSystemIdentifier;
		copy->_fileComment = [_fileComment copy];
		copy->_mode = [_mode retain];
		copy->_UID = [_UID retain];
		copy->_GID = [_GID retain];
		copy->_owner = [_owner copy];
		copy->_group = [_group copy];
		copy->_modificationDate = [_modificationDate retain];
		copy->_extensions = [_extensions copy];
	} @catch (id e) {
		[copy release];
		@throw e;
	}

	return copy;

}

- (uint32_t)uncompressedSize
{
	return _uncompressedSize;
}

- (OFDate *)date
{
	return _date;
}

- (uint8_t)headerLevel
{
	return _headerLevel;
}

}

- (OFString *)group
{
	return _group;
}

- (OFDate *)modificationDate
{
	return _modificationDate;
}

- (OFArray OF_GENERIC(OFData *) *)extensions
{
	return _extensions;
}

- (void)of_writeToStream: (OFStream *)stream
		encoding: (OFStringEncoding)encoding

	tmp32 = OFToLittleEndian32(_compressedSize);
	[data addItems: &tmp32 count: sizeof(tmp32)];

	tmp32 = OFToLittleEndian32(_uncompressedSize);
	[data addItems: &tmp32 count: sizeof(tmp32)];

	tmp32 = OFToLittleEndian32((uint32_t)_date.timeIntervalSince1970);

	[data addItems: &tmp32 count: sizeof(tmp32)];

	/* Reserved */
	[data increaseCountBy: 1];

	/* Header level */
	[data addItem: "\x02"];

		tmp16 = OFToLittleEndian16((uint16_t)ownerLength + 3);
		[data addItems: &tmp16 count: sizeof(tmp16)];
		[data addItem: "\x53"];
		[data addItems: [_owner cStringWithEncoding: encoding]
			 count: ownerLength];
	}

	if (_modificationDate != nil) {
		tmp16 = OFToLittleEndian16(7);
		[data addItems: &tmp16 count: sizeof(tmp16)];
		[data addItem: "\x54"];

		tmp32 = OFToLittleEndian32(
		    (uint32_t)_modificationDate.timeIntervalSince1970);
		[data addItems: &tmp32 count: sizeof(tmp32)];
	}

	for (OFData *extension in _extensions) {
		size_t extensionLength = extension.count;

		if (extension.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		if (extensionLength > UINT16_MAX - 2)

				      withString: @"\n\t"];
	OFString *ret = [OFString stringWithFormat:
	    @"<%@:\n"
	    @"\tFile name = %@\n"
	    @"\tCompression method = %@\n"
	    @"\tCompressed size = %" @PRIu32 "\n"
	    @"\tUncompressed size = %" @PRIu32 "\n"
	    @"\tDate = %@\n"
	    @"\tHeader level = %u\n"
	    @"\tCRC16 = %04" @PRIX16 @"\n"
	    @"\tOperating system identifier = %c\n"
	    @"\tComment = %@\n"
	    @"\tMode = %@\n"
	    @"\tUID = %@\n"
	    @"\tGID = %@\n"
	    @"\tOwner = %@\n"
	    @"\tGroup = %@\n"
	    @"\tModification date = %@\n"
	    @"\tExtensions: %@"
	    @">",
	    self.class, self.fileName, _compressionMethod, _compressedSize,
	    _uncompressedSize, _date, _headerLevel, _CRC16,
	    _operatingSystemIdentifier, _fileComment, mode, _UID, _GID, _owner,
	    _group, _modificationDate, extensions];

	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}
@end

/**
 * @brief The uncompressed size of the entry's file.
 */
@property (readwrite, nonatomic) uint32_t uncompressedSize;

/**
 * @brief The date of the file.
 */
@property (readwrite, retain, nonatomic) OFDate *date;

/**
 * @brief The LHA level of the file.
 */
@property (readwrite, nonatomic) uint8_t headerLevel;

/**

@property OF_NULLABLE_PROPERTY (readwrite, copy, nonatomic) OFString *owner;

/**
 * @brief The group of the file.
 */
@property OF_NULLABLE_PROPERTY (readwrite, copy, nonatomic) OFString *group;

/**
 * @brief The date of the last modification of the file.
 */
@property OF_NULLABLE_PROPERTY (readwrite, retain, nonatomic)
    OFDate *modificationDate;

/**
 * @brief The LHA extensions of the file.
 */
@property (readwrite, copy, nonatomic) OFArray OF_GENERIC(OFData *) *extensions;

/**
 * @brief Creates a new OFMutableLHAArchiveEntry with the specified file name.

#import "OFArray.h"
#import "OFData.h"
#import "OFDate.h"
#import "OFNumber.h"
#import "OFString.h"

@implementation OFMutableLHAArchiveEntry
@dynamic fileName, compressionMethod, compressedSize, uncompressedSize, date;
@dynamic headerLevel, CRC16, operatingSystemIdentifier, fileComment, mode, UID;
@dynamic GID, owner, group, modificationDate, extensions;

+ (instancetype)entryWithFileName: (OFString *)fileName
{
	return [[[self alloc] initWithFileName: fileName] autorelease];
}

- (instancetype)initWithFileName: (OFString *)fileName

}

- (void)setUncompressedSize: (uint32_t)uncompressedSize
{
	_uncompressedSize = uncompressedSize;
}

- (void)setDate: (OFDate *)date
{
	OFDate *old = _date;
	_date = [date retain];
	[old release];
}

- (void)setHeaderLevel: (uint8_t)headerLevel
{
	_headerLevel = headerLevel;
}

- (void)setGroup: (OFString *)group
{
	OFString *old = _group;
	_group = [group copy];
	[old release];
}

- (void)setModificationDate: (OFDate *)modificationDate
{
	OFDate *old = _modificationDate;
	_modificationDate = [modificationDate retain];
	[old release];
}

- (void)setExtensions: (OFArray OF_GENERIC(OFData *) *)extensions
{
	OFArray OF_GENERIC(OFData *) *old = _extensions;
	_extensions = [extensions copy];
	[old release];
}

- (void)makeImmutable
{
	object_setClass(self, [OFLHAArchiveEntry class]);
}
@end

					 ofItemAtPath: path];
#endif
}

static void
setModificationDate(OFString *path, OFLHAArchiveEntry *entry)
{
	OFDate *modificationDate = entry.modificationDate;
	OFFileAttributes 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: OFFileModificationDate];
	[[OFFileManager defaultManager] setAttributes: attributes
					 ofItemAtPath: path];
}

@implementation LHAArchive
+ (void)initialize

	while ((entry = [_archive nextEntry]) != nil) {
		void *pool = objc_autoreleasePoolPush();

		[OFStdOut 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];

			    @"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_date",

			    @"Date: %[date]",
			    @"date", date)];

			if (entry.mode != nil) {
				OFString *modeString = [OFString
				    stringWithFormat:
				    @"%ho", entry.mode.unsignedShortValue];

				[OFStdOut writeString: @"\t"];

					[OFStdOut writeString: @"\t"];
					[OFStdOut writeLine: OF_LOCALIZED(
					    @"list_osid",
					    @"Operating system identifier: "
					    "%[osid]",
					    @"osid", OSID)];
				}

				if (entry.modificationDate != nil) {
					OFString *modificationDate =
					    entry.modificationDate.description;

					[OFStdOut writeString: @"\t"];
					[OFStdOut writeLine: OF_LOCALIZED(
					    @"list_modification_date",
					    @"Modification date: %[date]",
					    @"date", modificationDate)];
				}
			}

			if (app->_outputLevel >= 3) {
				OFString *extensions =
				    indent(entry.extensions.description);

				[OFStdOut writeString: @"\t"];

		type = attributes.fileType;
		entry = [OFMutableLHAArchiveEntry entryWithFileName: fileName];

#ifdef OF_FILE_MANAGER_SUPPORTS_PERMISSIONS
		entry.mode = [OFNumber numberWithUnsignedLong:
		    attributes.filePOSIXPermissions];
#endif
		entry.date = attributes.fileModificationDate;

#ifdef OF_FILE_MANAGER_SUPPORTS_OWNER
		entry.UID = [OFNumber numberWithUnsignedLong:
		    attributes.fileOwnerAccountID];
		entry.GID = [OFNumber numberWithUnsignedLong:
		    attributes.fileGroupOwnerAccountID];
		entry.owner = attributes.fileOwnerAccountName;

        "Unkomprimierte Größe: ",
        [
            {"size == 1": "1 Byte"},
            {"": "%[size] Bytes"}
        ]
    ],
    "list_compression_method": "Kompressionsmethode: %[method]",
    "list_date": "Datum: %[date]",
    "list_osid": "Betriebssystem-Identifikator: %[osid]",
    "list_extensions": "Erweiterungen: %[extensions]",
    "list_version_made_by": "Erstellt mit Version: %[version]",
    "list_min_version_needed": "Mindestens benötigte Version: %[version]",
    "list_general_purpose_bit_flag": "General Purpose Bit Flag: %[gpbf]",
    "list_extra_field": "Extra-Feld: %[extra]",
    "list_comment": "Kommentar: %[comment]",