ObjFW  Diff

#define OF_LHA_ARCHIVE_ENTRY_M

#import "OFLHAArchiveEntry.h"
#import "OFLHAArchiveEntry+Private.h"
#import "OFArray.h"
#import "OFData.h"
#import "OFDate.h"
#import "OFNumber.h"
#import "OFStream.h"
#import "OFString.h"

#import "OFInvalidFormatException.h"
#import "OFUnsupportedVersionException.h"

static void

	entry->_directoryName = [tmp copy];

	objc_autoreleasePoolPop(pool);
}

static void
parseCommentExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	[entry->_fileComment release];
	entry->_fileComment = nil;

	entry->_fileComment = [[OFString alloc]
	    initWithCString: (char *)[extension items] + 1
		   encoding: encoding
		     length: [extension count] - 1];
}

static void
parsePermissionsExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	uint16_t mode;

	if ([extension count] != 3)
		@throw [OFInvalidFormatException exception];

	memcpy(&mode, (char *)[extension items] + 1, 2);
	mode = OF_BSWAP16_IF_BE(mode);

	[entry->_mode release];
	entry->_mode = nil;

	entry->_mode = [[OFNumber alloc] initWithUInt16: mode];
}

static void
parseGIDUIDExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	uint16_t UID, GID;

	if ([extension count] != 5)
		@throw [OFInvalidFormatException exception];

	memcpy(&GID, (char *)[extension items] + 1, 2);
	GID = OF_BSWAP16_IF_BE(GID);

	memcpy(&UID, (char *)[extension items] + 3, 2);
	UID = OF_BSWAP16_IF_BE(UID);

	[entry->_GID release];
	entry->_GID = nil;

	[entry->_UID release];
	entry->_UID = nil;

	entry->_GID = [[OFNumber alloc] initWithUInt16: GID];
	entry->_UID = [[OFNumber alloc] initWithUInt16: UID];
}

static void
parseGroupExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	[entry->_group release];
	entry->_group = nil;

	entry->_group = [[OFString alloc]
	    initWithCString: (char *)[extension items] + 1
		   encoding: encoding
		     length: [extension count] - 1];
}

static void
parseOwnerExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	[entry->_owner release];
	entry->_owner = nil;

	entry->_owner = [[OFString alloc]
	    initWithCString: (char *)[extension items] + 1
		   encoding: encoding
		     length: [extension count] - 1];
}

static void
parseModificationDateExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	uint32_t modificationDate;

	if ([extension count] != 5)
		@throw [OFInvalidFormatException exception];

	memcpy(&modificationDate, (char *)[extension items] + 1, 4);
	modificationDate = OF_BSWAP32_IF_BE(modificationDate);

	[entry->_modificationDate release];
	entry->_modificationDate = nil;

	entry->_modificationDate = [[OFDate alloc]
	    initWithTimeIntervalSince1970: modificationDate];
}

static bool
parseExtension(OFLHAArchiveEntry *entry, OFData *extension,
    of_string_encoding_t encoding)
{
	void (*function)(OFLHAArchiveEntry *, OFData *, of_string_encoding_t) =
	    NULL;

	switch (*(char *)[extension itemAtIndex: 0]) {
	case 0x01:
		function = parseFileNameExtension;
		break;
	case 0x02:
		function = parseDirectoryNameExtension;
		break;
	case 0x3F:
		function = parseCommentExtension;
		break;
	case 0x50:
		function = parsePermissionsExtension;
		break;
	case 0x51:
		function = parseGIDUIDExtension;
		break;
	case 0x52:
		function = parseGroupExtension;
		break;
	case 0x53:
		function = parseOwnerExtension;
		break;
	case 0x54:
		function = parseModificationDateExtension;
		break;
	}

	if (function == NULL)
		return false;

	function(entry, extension, encoding);
	return true;
}

@implementation OFLHAArchiveEntry
@synthesize method = _method, compressedSize = _compressedSize;
@synthesize uncompressedSize = _uncompressedSize, date = _date;
@synthesize level = _level, CRC16 = _CRC16;
@synthesize operatingSystemIdentifier = _operatingSystemIdentifier;
@synthesize fileComment = _fileComment, mode = _mode, UID = _UID, GID = _GID;
@synthesize owner = _owner, group = _group;
@synthesize modificationDate = _modificationDate, extensions = _extensions;

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)of_initWithHeaderSize: (uint8_t)headerSize

		while ((nextSize = [stream readLittleEndianInt16]) > 0) {
			OFData *extension;

			if (nextSize < 2)
				@throw [OFInvalidFormatException exception];

			extension = [stream readDataWithCount: nextSize - 2];


			if (!parseExtension(self, extension, encoding))
				[extensions addObject: extension];
		}

		[extensions makeImmutable];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

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

	[super dealloc];
}

- (id)copy
{

	return [_directoryName stringByAppendingString: _fileName];
}

- (OFString *)description
{
	void *pool = objc_autoreleasePoolPush();
	OFString *mode = (_mode == nil
	    ? @"(nil)"
	    : [OFString stringWithFormat: @"%" PRIo16, [_mode uInt16Value]]);
	OFString *extensions = [[_extensions description]
	    stringByReplacingOccurrencesOfString: @"\n"
				      withString: @"\n\t"];
	OFString *ret = [OFString stringWithFormat:
	    @"<%@:\n"
	    @"\tFile name = %@\n"
	    @"\tCompressed size = %" @PRIu32 "\n"
	    @"\tUncompressed size = %" @PRIu32 "\n"
	    @"\tDate = %@\n"
	    @"\tLevel = %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], _compressedSize, _uncompressedSize,
	    _date, _level, _CRC16, _operatingSystemIdentifier, _fileComment,
	    mode, _UID, _GID, _owner, _group, _modificationDate, extensions];

	[ret retain];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}
@end