/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, * 2018, 2019, 2020 * Jonathan Schleifer * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFObject.h" OF_ASSUME_NONNULL_BEGIN /*! @file */ enum { OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_NONE = 0, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_SHRINK = 1, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_REDUCE_FACTOR_1 = 2, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_REDUCE_FACTOR_2 = 3, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_REDUCE_FACTOR_3 = 4, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_REDUCE_FACTOR_4 = 5, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_IMPLODE = 6, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE = 8, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_DEFLATE64 = 9, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_BZIP2 = 12, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_LZMA = 14, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_WAVPACK = 97, OF_ZIP_ARCHIVE_ENTRY_COMPRESSION_METHOD_PPMD = 98 }; /*! * @brief Attribute compatibility part of ZIP versions. */ enum of_zip_archive_entry_attribute_compatibility { /*! MS-DOS and OS/2 */ 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 OS */ OF_ZIP_ARCHIVE_ENTRY_ATTR_COMPAT_ACORN_RISC_OS = 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 OFData; @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; OFData *_Nullable _extraField; OFString *_Nullable _fileComment; uint32_t _startDiskNumber; uint16_t _internalAttributes; uint32_t _versionSpecificAttributes; int64_t _localFileHeaderOffset; OF_RESERVE_IVARS(4) } /*! * @brief The file name of the entry. */ @property (readonly, copy, nonatomic) OFString *fileName; /*! * @brief The comment of the entry's file. */ @property OF_NULLABLE_PROPERTY (readonly, copy, nonatomic) OFString *fileComment; /*! * @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 of_zip_archive_entry_attribute_compatibility. */ @property (readonly, nonatomic) uint16_t 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 of_zip_archive_entry_attribute_compatibility. */ @property (readonly, nonatomic) uint16_t minVersionNeeded; /*! * @brief The last modification date of the entry's file. * * @note Due to limitations of the ZIP format, this has only 2 second precision. */ @property (readonly, retain, nonatomic) OFDate *modificationDate; /*! * @brief 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. */ @property (readonly, nonatomic) uint16_t compressionMethod; /*! * @brief The compressed size of the entry's file. */ @property (readonly, nonatomic) uint64_t compressedSize; /*! * @brief The uncompressed size of the entry's file. */ @property (readonly, nonatomic) uint64_t uncompressedSize; /*! * @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; /*! * @brief Creates a new OFZIPArchiveEntry with the specified file name. * * @param fileName The file name for the OFZIPArchiveEntry * @return A new, autoreleased OFZIPArchiveEntry */ + (instancetype)entryWithFileName: (OFString *)fileName; - (instancetype)init OF_UNAVAILABLE; /*! * @brief Initializes an already allocated OFZIPArchiveEntry with the specified * file name. * * @param fileName The file name for the OFZIPArchiveEntry * @return An initialized OFZIPArchiveEntry */ - (instancetype)initWithFileName: (OFString *)fileName; @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 *of_zip_archive_entry_version_to_string(uint16_t version); /*! * @brief Convers 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 *of_zip_archive_entry_compression_method_to_string( uint16_t 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 * OF_NOT_FOUND */ extern size_t of_zip_archive_entry_extra_field_find(OFData *extraField, uint16_t tag, uint16_t *size); #ifdef __cplusplus } #endif OF_ASSUME_NONNULL_END #import "OFMutableZIPArchiveEntry.h"