ObjFW  Check-in [c1d665c395]

HIDE_UNDOC_MEMBERS = YES
PREDEFINED = OF_HAVE_BLOCKS		\
	     OF_HAVE_FILES		\
	     OF_HAVE_OPTIONAL_PROTOCOLS	\
	     OF_HAVE_PROPERTIES		\
	     OF_HAVE_SOCKETS		\
	     OF_HAVE_THREADS		\
	     OF_METHOD_NORETURN		\
	     OF_SENTINEL		\
	     OF_REQUIRES_SUPER		\
	     OF_RETURNS_RETAINED	\
	     OF_RETURNS_NOT_RETAINED	\
	     OF_RETURNS_INNER_POINTER	\
	     OF_ROOT_CLASS		\
	     OF_CONSUMED		\
	     OF_WEAK_UNAVAILABLE
MACRO_EXPANSION = YES
EXPAND_ONLY_PREDEF = YES
IGNORE_PREFIX = OF of_

- (void)OF_readZIPInfo;
- (void)OF_readEntries;
@end

@interface OFZIPArchive_LocalFileHeader: OFObject
{
@public
	uint16_t _minVersionNeeded, _generalPurposeBitFlag, _compressionMethod;
	uint16_t _lastModifiedFileTime, _lastModifiedFileDate;
	uint32_t _CRC32;
	uint64_t _compressedSize, _uncompressedSize;
	OFString *_fileName;
	OFDataArray *_extraField;
}

		     whence: SEEK_SET];
	localFileHeader = [[[OFZIPArchive_LocalFileHeader alloc]
	    initWithFile: _file] autorelease];

	if (![localFileHeader matchesEntry: entry])
		@throw [OFInvalidFormatException exception];

	if ((localFileHeader->_minVersionNeeded & 0xFF) > 45) {
		OFString *version = [OFString stringWithFormat: @"%u.%u",
		    (localFileHeader->_minVersionNeeded & 0xFF) / 10,
		    (localFileHeader->_minVersionNeeded & 0xFF) % 10];

		@throw [OFUnsupportedVersionException
		    exceptionWithVersion: version];
	}

	ret = [[OFZIPArchive_FileStream alloc]
	    initWithArchiveFile: _path

		of_string_encoding_t encoding;
		uint8_t *ZIP64;
		uint16_t ZIP64Size;

		if ([file readLittleEndianInt32] != 0x04034B50)
			@throw [OFInvalidFormatException exception];

		_minVersionNeeded = [file readLittleEndianInt16];
		_generalPurposeBitFlag = [file readLittleEndianInt16];
		_compressionMethod = [file readLittleEndianInt16];
		_lastModifiedFileTime = [file readLittleEndianInt16];
		_lastModifiedFileDate = [file readLittleEndianInt16];
		_CRC32 = [file readLittleEndianInt32];
		_compressedSize = [file readLittleEndianInt32];
		_uncompressedSize = [file readLittleEndianInt32];
		fileNameLength = [file readLittleEndianInt16];
		extraFieldLength = [file readLittleEndianInt16];
		encoding = (_generalPurposeBitFlag & (1 << 11)
		    ? OF_STRING_ENCODING_UTF_8
		    : OF_STRING_ENCODING_CODEPAGE_437);

		_fileName = [[file readStringWithLength: fileNameLength
					       encoding: encoding] copy];
		_extraField = [[file
		    readDataArrayWithCount: extraFieldLength] retain];

		of_zip_archive_entry_extra_field_find(_extraField,
		    OF_ZIP_ARCHIVE_ENTRY_EXTRA_FIELD_ZIP64, &ZIP64, &ZIP64Size);

		if (ZIP64 != NULL) {
			if (_uncompressedSize == 0xFFFFFFFF)
				_uncompressedSize = of_zip_archive_read_field64(
				    &ZIP64, &ZIP64Size);
			if (_compressedSize == 0xFFFFFFFF)
				_compressedSize = of_zip_archive_read_field64(

	[_extraField release];

	[super dealloc];
}

- (bool)matchesEntry: (OFZIPArchiveEntry*)entry
{
	if (_minVersionNeeded != [entry minVersionNeeded] ||
	    _generalPurposeBitFlag != [entry OF_generalPurposeBitFlag] ||
	    _compressionMethod != [entry compressionMethod] ||
	    _lastModifiedFileTime != [entry OF_lastModifiedFileTime] ||
	    _lastModifiedFileDate != [entry OF_lastModifiedFileDate])
		return false;

	if (!(_generalPurposeBitFlag & (1 << 3)))
		if (_CRC32 != [entry CRC32] ||
		    _compressedSize != [entry compressedSize] ||

	@try {
		_file = [[OFFile alloc] initWithPath: path
						mode: @"rb"];
		[_file seekToOffset: offset
			     whence: SEEK_SET];

		switch (localFileHeader->_compressionMethod) {
		case OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_NONE:
			_stream = [_file retain];
			break;
		case OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE:
			_stream = [[OFDeflateStream alloc]
			    initWithStream: _file];
			break;
		case OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE64:
			_stream = [[OFDeflate64Stream alloc]
			    initWithStream: _file];
			break;
		default:
			@throw [OFNotImplementedException
			    exceptionWithSelector: _cmd
					   object: self];

#import "OFZIPArchive.h"

#import "macros.h"

@interface OFZIPArchiveEntry (OF_PRIVATE_CATEGORY)
- (instancetype)OF_initWithFile: (OFFile*)file;


- (uint16_t)OF_generalPurposeBitFlag;

- (uint16_t)OF_lastModifiedFileTime;
- (uint16_t)OF_lastModifiedFileDate;




- (uint64_t)OF_localFileHeaderOffset;
@end

 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "OFObject.h"

/*! @file */

enum {
	OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_NONE	  = 0,
	OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE	  = 8,
	OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE64 = 9
};

/*!
 * @brief Attribute compatibility part of ZIP versions.
 */
enum of_zip_archive_entry_attribute_compatibility {
	/** MS-DOS and OS/2 (FAT / VFAT / FAT32 file systems) */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_MSDOS	       =  0,
	/** Amiga */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_AMIGA	       =  1,
	/** OpenVMS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_OPENVMS       =  2,
	/** UNIX */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_UNIX	       =  3,
	/** VM/CMS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_VM_CMS	       =  4,
	/** Atari ST */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_ATARI_ST      =  5,
	/** OS/2 HPFS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_OS2_HPFS      =  6,
	/** Macintosh */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_MACINTOSH     =  7,
	/** Z-System */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_Z_SYSTEM      =  8,
	/** CP/M */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_CP_M	       =  9,
	/** Windows NTFS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_WINDOWS_NTFS  = 10,
	/** MVS (OS/390 - Z/OS) */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_MVS	       = 11,
	/** VSE */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_VSE	       = 12,
	/** Acorn Risc */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_ACORN_RISC    = 13,
	/** VFAT */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_VFAT	       = 14,
	/** Alternate MVS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_ALTERNATE_MVS = 15,
	/** BeOS */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_BEOS	       = 16,
	/** Tandem */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_TANDEM	       = 17,
	/** OS/400 */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_OS_400	       = 18,
	/** OS X (Darwin) */
	OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_OS_X	       = 19
};

enum {
	OF_ZIP_ARCHIVE_ENTRY_EXTRA_FIELD_ZIP64 = 0x0001
};

@class OFString;
@class OFDataArray;
@class OFFile;
@class OFDate;

/*!
 * @class OFZIPArchiveEntry OFZIPArchiveEntry.h ObjFW/OFZIPArchiveEntry.h
 *
 * @brief A class which represents an entry in the central directory of a ZIP
 *	  archive.
 */
@interface OFZIPArchiveEntry: OFObject
{
	uint16_t _versionMadeBy, _minVersionNeeded, _generalPurposeBitFlag;
	uint16_t _compressionMethod;
	uint16_t _lastModifiedFileTime, _lastModifiedFileDate;
	uint32_t _CRC32;
	uint64_t _compressedSize, _uncompressedSize;
	OFString *_fileName;
	OFDataArray *_extraField;
	OFString *_fileComment;
	uint32_t _startDiskNumber;
	uint16_t _internalAttributes;
	uint32_t _versionSpecificAttributes;
	uint64_t _localFileHeaderOffset;
}

#ifdef OF_HAVE_PROPERTIES
@property (readonly, copy) OFString *fileName, *fileComment;
@property (readonly) uint16_t versionMadeBy, minVersionNeeded;
@property (readonly) uint16_t compressionMethod;
@property (readonly) uint64_t compressedSize, uncompressedSize;
@property (readonly, retain) OFDate *modificationDate;
@property (readonly) uint32_t CRC32;
@property (readonly) uint32_t versionSpecificAttributes;
@property (readonly, copy) OFDataArray *extraField;
#endif

/*!
 * @brief Returns the file name of the entry.
 *
 * @return The file name of the entry
 */
- (OFString*)fileName;

/*!
 * @brief Returns the comment of the entry's file.
 *
 * @return The comment of the entry's file
 */
- (OFString*)fileComment;

/*!
 * @brief Returns the version which made the entry.
 *
 * The lower 8 bits are the ZIP specification version.@n
 * The upper 8 bits are the attribute compatibility.
 * See @ref of_zip_archive_entry_attribute_compatibility.
 *
 * @return The version which made the entry
 */
- (uint16_t)versionMadeBy;

/*!
 * @brief Returns the minimum version required to extract the file.
 *
 * The lower 8 bits are the ZIP specification version.@n
 * The upper 8 bits are the attribute compatibility.
 * See @ref of_zip_archive_entry_attribute_compatibility.
 *
 * @return The minimum version required to extract the file
 */
- (uint16_t)minVersionNeeded;

/*!
 * @brief Returns the compression method of the entry
 *
 * Supported values are:
 * Value                                             | Description
 * --------------------------------------------------|---------------
 * OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_NONE      | No compression
 * OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE   | Deflate
 * OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE64 | Deflate64
 *
 * Other values may be returned, but the file cannot be extracted then.
 *
 * @return The compression method of the entry
 */
- (uint16_t)compressionMethod;

/*!
 * @brief Returns the compressed size of the entry's file.
 *
 * @return The compressed size of the entry's file
 */
- (uint64_t)compressedSize;

/*!
 * @brief Returns the CRC32 checksum of the entry's file.
 *
 * @return The CRC32 checksum of the entry's file
 */
- (uint32_t)CRC32;

/*!
 * @brief Returns the version specific attributes.
 *
 * The meaning of the version specific attributes depends on the attribute
 * compatibility part of the version that made the entry.
 *
 * @return The version specific attributes
 */
- (uint32_t)versionSpecificAttributes;

/*!
 * @brief Returns the extra field of the entry.
 *
 * @return The extra field of the entry
 */
- (OFDataArray*)extraField;
@end

#ifdef __cplusplus
extern "C" {
#endif
/*!
 * @brief Gets a pointer to and the size of the extensible data field with the
 *	  specified tag.
 *
 * @param extraField The extra field to search for an extensible data field with
 *		     the specified tag
 * @param tag The tag to look for
 * @param data A pointer to a pointer that should be set to the start of the
 *	       extra field with the specified tag
 * @param size A pointer to an uint16_t that should be set to the size
 */
extern void of_zip_archive_entry_extra_field_find(OFDataArray *extraField,
    uint16_t tag, uint8_t **data, uint16_t *size);
#ifdef __cplusplus
}
#endif

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"

extern uint32_t of_zip_archive_read_field32(uint8_t**, uint16_t*);
extern uint64_t of_zip_archive_read_field64(uint8_t**, uint16_t*);

void
of_zip_archive_entry_extra_field_find(OFDataArray *extraField, uint16_t tag,
    uint8_t **data, uint16_t *size)
{
	uint8_t *bytes;
	size_t i, count;

	bytes = [extraField items];
	count = [extraField count];

		of_string_encoding_t encoding;
		uint8_t *ZIP64 = NULL;
		uint16_t ZIP64Size;

		if ([file readLittleEndianInt32] != 0x02014B50)
			@throw [OFInvalidFormatException exception];

		_versionMadeBy = [file readLittleEndianInt16];
		_minVersionNeeded = [file readLittleEndianInt16];
		_generalPurposeBitFlag = [file readLittleEndianInt16];
		_compressionMethod = [file readLittleEndianInt16];
		_lastModifiedFileTime = [file readLittleEndianInt16];
		_lastModifiedFileDate = [file readLittleEndianInt16];
		_CRC32 = [file readLittleEndianInt32];
		_compressedSize = [file readLittleEndianInt32];
		_uncompressedSize = [file readLittleEndianInt32];
		fileNameLength = [file readLittleEndianInt16];
		extraFieldLength = [file readLittleEndianInt16];
		fileCommentLength = [file readLittleEndianInt16];
		_startDiskNumber = [file readLittleEndianInt16];
		_internalAttributes = [file readLittleEndianInt16];
		_versionSpecificAttributes = [file readLittleEndianInt32];
		_localFileHeaderOffset = [file readLittleEndianInt32];

		encoding = (_generalPurposeBitFlag & (1 << 11)
		    ? OF_STRING_ENCODING_UTF_8
		    : OF_STRING_ENCODING_CODEPAGE_437);

		_fileName = [[file readStringWithLength: fileNameLength
					       encoding: encoding] copy];
		_extraField = [[file
		    readDataArrayWithCount: extraFieldLength] retain];
		_fileComment = [[file readStringWithLength: fileCommentLength
						  encoding: encoding] copy];

		of_zip_archive_entry_extra_field_find(_extraField,
		    OF_ZIP_ARCHIVE_ENTRY_EXTRA_FIELD_ZIP64, &ZIP64, &ZIP64Size);

		if (ZIP64 != NULL) {
			if (_uncompressedSize == 0xFFFFFFFF)
				_uncompressedSize = of_zip_archive_read_field64(
				    &ZIP64, &ZIP64Size);
			if (_compressedSize == 0xFFFFFFFF)
				_compressedSize = of_zip_archive_read_field64(

	OF_GETTER(_fileName, true)
}

- (OFString*)fileComment
{
	OF_GETTER(_fileComment, true)
}

- (uint16_t)versionMadeBy
{
	return _versionMadeBy;
}

- (uint16_t)minVersionNeeded
{
	return _minVersionNeeded;
}

- (uint16_t)compressionMethod
{
	return _compressionMethod;
}

- (uint64_t)compressedSize
{
	return _compressedSize;
}

- (uint64_t)uncompressedSize

	return [date autorelease];
}

- (uint32_t)CRC32
{
	return _CRC32;
}

- (uint32_t)versionSpecificAttributes
{
	return _versionSpecificAttributes;
}

- (OFDataArray*)extraField
{
	return [[_extraField copy] autorelease];
}

- (OFString*)description

	    (intmax_t)_uncompressedSize, modificationDate, _CRC32, _extraField];

	objc_autoreleasePoolPop(pool);

	return [ret autorelease];
}











- (uint16_t)OF_generalPurposeBitFlag
{
	return _generalPurposeBitFlag;
}






- (uint16_t)OF_lastModifiedFileTime
{
	return _lastModifiedFileTime;
}

- (uint16_t)OF_lastModifiedFileDate
{
	return _lastModifiedFileDate;
}





















- (uint64_t)OF_localFileHeaderOffset
{
	return _localFileHeaderOffset;
}
@end