/*
* 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/>.
*/
#import "OFObject.h"
#import "OFArchiveEntry.h"
OF_ASSUME_NONNULL_BEGIN
/** @file */
typedef enum {
OFZIPArchiveEntryCompressionMethodNone = 0,
OFZIPArchiveEntryCompressionMethodShrink = 1,
OFZIPArchiveEntryCompressionMethodReduceFactor1 = 2,
OFZIPArchiveEntryCompressionMethodReduceFactor2 = 3,
OFZIPArchiveEntryCompressionMethodReduceFactor3 = 4,
OFZIPArchiveEntryCompressionMethodReduceFactor4 = 5,
OFZIPArchiveEntryCompressionMethodImplode = 6,
OFZIPArchiveEntryCompressionMethodDeflate = 8,
OFZIPArchiveEntryCompressionMethodDeflate64 = 9,
OFZIPArchiveEntryCompressionMethodBZIP2 = 12,
OFZIPArchiveEntryCompressionMethodLZMA = 14,
OFZIPArchiveEntryCompressionMethodWavPack = 97,
OFZIPArchiveEntryCompressionMethodPPMd = 98
} OFZIPArchiveEntryCompressionMethod;
/**
* @brief Attribute compatibility part of ZIP versions.
*/
typedef enum {
/** MS-DOS and OS/2 */
OFZIPArchiveEntryAttributeCompatibilityMSDOS = 0,
/** Amiga */
OFZIPArchiveEntryAttributeCompatibilityAmiga = 1,
/** OpenVMS */
OFZIPArchiveEntryAttributeCompatibilityOpenVMS = 2,
/** UNIX */
OFZIPArchiveEntryAttributeCompatibilityUNIX = 3,
/** VM/CMS */
OFZIPArchiveEntryAttributeCompatibilityVM_CMS = 4,
/** Atari ST */
OFZIPArchiveEntryAttributeCompatibilityAtariST = 5,
/** OS/2 HPFS */
OFZIPArchiveEntryAttributeCompatibilityOS2HPFS = 6,
/** Macintosh */
OFZIPArchiveEntryAttributeCompatibilityMacintosh = 7,
/** Z-System */
OFZIPArchiveEntryAttributeCompatibilityZSystem = 8,
/** CP/M */
OFZIPArchiveEntryAttributeCompatibilityCPM = 9,
/** Windows NTFS */
OFZIPArchiveEntryAttributeCompatibilityWindowsNTFS = 10,
/** MVS (OS/390 - Z/OS) */
OFZIPArchiveEntryAttributeCompatibilityMVS = 11,
/** VSE */
OFZIPArchiveEntryAttributeCompatibilityVSE = 12,
/** Acorn RISC OS */
OFZIPArchiveEntryAttributeCompatibilityAcornRISCOS = 13,
/** VFAT */
OFZIPArchiveEntryAttributeCompatibilityVFAT = 14,
/** Alternate MVS */
OFZIPArchiveEntryAttributeCompatibilityAlternateMVS = 15,
/** BeOS */
OFZIPArchiveEntryAttributeCompatibilityBeOS = 16,
/** Tandem */
OFZIPArchiveEntryAttributeCompatibilityTandem = 17,
/** OS/400 */
OFZIPArchiveEntryAttributeCompatibilityOS400 = 18,
/** OS X (Darwin) */
OFZIPArchiveEntryAttributeCompatibilityOSX = 19
} OFZIPArchiveEntryAttributeCompatibility;
/**
* @brief Tags for the extra field.
*/
typedef enum {
/** ZIP64 extra field tag */
OFZIPArchiveEntryExtraFieldTagZIP64 = 0x0001
} OFZIPArchiveEntryExtraFieldTag;
@class OFString;
@class OFData;
@class OFFile;
@class OFDate;
/**
* @class OFZIPArchiveEntry OFZIPArchiveEntry.h ObjFW/ObjFW.h
*
* @brief A class which represents an entry in the central directory of a ZIP
* archive.
*/
@interface OFZIPArchiveEntry: OFObject <OFArchiveEntry, OFCopying,
OFMutableCopying>
{
OFZIPArchiveEntryAttributeCompatibility _versionMadeBy;
OFZIPArchiveEntryAttributeCompatibility _minVersionNeeded;
uint16_t _generalPurposeBitFlag;
OFZIPArchiveEntryCompressionMethod _compressionMethod;
uint16_t _lastModifiedFileTime, _lastModifiedFileDate;
uint32_t _CRC32;
unsigned long long _compressedSize, _uncompressedSize;
OFString *_fileName;
OFData *_Nullable _extraField;
OFString *_Nullable _fileComment;
uint32_t _startDiskNumber;
uint16_t _internalAttributes;
uint32_t _versionSpecificAttributes;
int64_t _localFileHeaderOffset;
OF_RESERVE_IVARS(OFZIPArchiveEntry, 4)
}
/**
* @brief The extra field of the entry.
*
* The item size *must* be 1!
*/
@property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFData *extraField;
/**
* @brief 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 OFZIPArchiveEntryAttributeCompatibility.
*/
@property (readonly, nonatomic)
OFZIPArchiveEntryAttributeCompatibility versionMadeBy;
/**
* @brief 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 OFZIPArchiveEntryAttributeCompatibility.
*/
@property (readonly, nonatomic)
OFZIPArchiveEntryAttributeCompatibility minVersionNeeded;
/**
* @brief The compression method of the entry.
*
* Supported values are:
* Value | Description
* --------------------------------------------|---------------
* OFZIPArchiveEntryCompressionMethodNone | No compression
* OFZIPArchiveEntryCompressionMethodDeflate | Deflate
* OFZIPArchiveEntryCompressionMethodDeflate64 | Deflate64
*
* Other values may be returned, but the file cannot be extracted then.
*/
@property (readonly, nonatomic)
OFZIPArchiveEntryCompressionMethod compressionMethod;
/**
* @brief The CRC32 checksum of the entry's file.
*/
@property (readonly, nonatomic) uint32_t CRC32;
/**
* @brief The version specific attributes.
*
* The meaning of the version specific attributes depends on the attribute
* compatibility part of the version that made the entry.
*/
@property (readonly, nonatomic) uint32_t versionSpecificAttributes;
/**
* @brief The general purpose bit flag of the entry.
*
* See the ZIP specification for details.
*/
@property (readonly, nonatomic) uint16_t generalPurposeBitFlag;
- (instancetype)init OF_UNAVAILABLE;
@end
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Converts the ZIP entry version to a string.
*
* @param version The ZIP entry version to convert to a string
* @return The ZIP entry version as a string
*/
extern OFString *OFZIPArchiveEntryVersionToString(uint16_t version);
/**
* @brief Converts the ZIP entry compression method to a string.
*
* @param compressionMethod The ZIP entry compression method to convert to a
* string
* @return The ZIP entry compression method as a string
*/
extern OFString *OFZIPArchiveEntryCompressionMethodName(
OFZIPArchiveEntryCompressionMethod compressionMethod);
/**
* @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 size A pointer to an uint16_t that should be set to the size
* @return The index at which the extra field content starts in the OFData, or
* `OFNotFound`
*/
extern size_t OFZIPArchiveEntryExtraFieldFind(OFData *extraField,
OFZIPArchiveEntryExtraFieldTag tag, uint16_t *size);
#ifdef __cplusplus
}
#endif
OF_ASSUME_NONNULL_END
#import "OFMutableZIPArchiveEntry.h"