ObjFW  Check-in [3f34a360bf]

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       OFMutableURL.m			\
       OFMutableZIPArchiveEntry.m	\
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       OFObject+Serialization.m		\

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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 "OFTarArchiveEntry.h"

OF_ASSUME_NONNULL_BEGIN

/*!
 * @class OFMutableTarArchiveEntry \
 *	  OFMutableTarArchiveEntry.h ObjFW/OFMutableTarArchiveEntry.h
 *
 * @brief A class which represents a mutable entry of a tar archive.
 */
@interface OFMutableTarArchiveEntry: OFTarArchiveEntry

/*!
 * The file name of the entry.
 */
@property (readwrite, nonatomic, copy) OFString *fileName;

/*!
 * The mode of the entry.
 */
@property (readwrite, nonatomic) uint32_t mode;

/*!
 * The size of the file.
 */
@property (readwrite, nonatomic) uint64_t size;

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

/*!
 * The type of the archive entry.
 *
 * See @ref of_tar_archive_entry_type_t.
 */
@property (readwrite, nonatomic) of_tar_archive_entry_type_t type;

/*!
 * The file name of the target (for a hard link or symbolic link).
 */
@property OF_NULLABLE_PROPERTY (readwrite, nonatomic, copy)
    OFString *targetFileName;

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

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

/*!
 * The device major (if the file is a device).
 */
@property (readwrite, nonatomic) uint32_t deviceMajor;

/*!
 * The device major (if the file is a device).
 */
@property (readwrite, nonatomic) uint32_t deviceMinor;

/*!
 * @brief Converts the OFMutableTarArchiveEntry to an immutable
 *	  OFTarArchiveEntry.
 */
- (void)makeImmutable;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
 *   Jonathan Schleifer <js@heap.zone>
 *
 * 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.
 */

#include "config.h"

#import "OFMutableTarArchiveEntry.h"

@implementation OFMutableTarArchiveEntry
@dynamic fileName, mode, size, modificationDate, type, targetFileName;
@dynamic owner, group, deviceMajor, deviceMinor;

- copy
{
	OFMutableTarArchiveEntry *copy = [self mutableCopy];

	[copy makeImmutable];

	return copy;
}

- (void)setFileName: (OFString *)fileName
{
	OFString *old = _fileName;
	_fileName = [fileName copy];
	[old release];
}

- (void)setMode: (uint32_t)mode
{
	_mode = mode;
}

- (void)setSize: (uint64_t)size
{
	_size = size;
}

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

- (void)setType: (of_tar_archive_entry_type_t)type
{
	_type = type;
}

- (void)setTargetFileName: (OFString *)targetFileName
{
	OFString *old = _targetFileName;
	_targetFileName = [targetFileName copy];
	[old release];
}

- (void)setOwner: (OFString *)owner
{
	OFString *old = _owner;
	_owner = [owner copy];
	[old release];
}

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

- (void)setDeviceMajor: (uint32_t)deviceMajor
{
	_deviceMajor = deviceMajor;
}

- (void)setDeviceMinor: (uint32_t)deviceMinor
{
	_deviceMinor = deviceMinor;
}

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

 * The general purpose bit flag of the entry.
 *
 * See the ZIP specification for details.
 */
@property (readwrite, nonatomic) uint16_t generalPurposeBitFlag;

/*!
 * @brief Converts the OFMutableZIPArchiveEntry to an immutable
 *	  OFZIPArchiveEntry.
 */
- (void)makeImmutable;
@end

OF_ASSUME_NONNULL_END

#import "OFObject.h"
#import "OFTarArchiveEntry.h"

OF_ASSUME_NONNULL_BEGIN

@class OFString;
@class OFStream;
@class OFTarArchive_FileReadStream;

/*!
 * @class OFTarArchive OFTarArchive.h ObjFW/OFTarArchive.h
 *
 * @brief A class for accessing and manipulating tar archives.
 */
@interface OFTarArchive: OFObject
{



	OFStream *_stream;

	enum {
		OF_TAR_ARCHIVE_MODE_READ,
		OF_TAR_ARCHIVE_MODE_WRITE,
		OF_TAR_ARCHIVE_MODE_APPEND
	} _mode;
	OFTarArchive_FileReadStream *_lastReturnedStream;
}

/*!
 * @brief Creates a new OFTarArchive object with the specified stream.
 *
 * @param stream A stream from which the tar archive will be read
 * @param mode The mode for the tar file. Valid modes are "r" for reading,

/*!
 * @brief Returns the next entry from the tar archive or `nil` if all entries
 *	  have been read.
 *
 * This is only available in read mode.
 *
 * @warning Calling @ref nextEntry will invalidate all streams returned by
 *	    @ref streamForReadingCurrentEntry entry! Reading from an
 *	    invalidated stream will throw an @ref OFReadFailedException!
 *
 * @return The next entry from the tar archive or `nil` if all entries have
 *	   been read
 */
- (OFTarArchiveEntry *)nextEntry;

/*!
 * @brief Returns a stream for reading the current entry.
 *
 * @return A stream for reading the current entry
 */
- (OFStream *)streamForReadingCurrentEntry;
@end

OF_ASSUME_NONNULL_END

#import "OFStream.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
#endif

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

@interface OFTarArchive_FileReadStream: OFStream
{
	OFStream *_stream;
	OFTarArchiveEntry *_entry;
	size_t _toRead;
	bool _atEndOfStream;
}

- initWithEntry: (OFTarArchiveEntry *)entry
	 stream: (OFStream *)stream;
- (void)of_skip;
@end

@implementation OFTarArchive: OFObject
+ (instancetype)archiveWithStream: (OFStream *)stream
			     mode: (OFString *)mode
{
	return [[[self alloc] initWithStream: stream
					mode: mode] autorelease];

	return self;
}
#endif

- (void)dealloc
{
	[_stream release];
	[_lastReturnedStream release];

	[super dealloc];
}

- (OFTarArchiveEntry *)nextEntry
{
	OFTarArchiveEntry *entry;
	union {
		char c[512];
		uint32_t u32[512 / sizeof(uint32_t)];
	} buffer;
	bool empty = true;

	if (_mode != OF_TAR_ARCHIVE_MODE_READ)
		@throw [OFInvalidArgumentException exception];

	[_lastReturnedStream of_skip];
	[_lastReturnedStream close];
	[_lastReturnedStream release];
	_lastReturnedStream = nil;

	if ([_stream isAtEndOfStream])
		return nil;

	[_stream readIntoBuffer: buffer.c
		    exactLength: 512];

		for (size_t i = 0; i < 512 / sizeof(uint32_t); i++)
			if (buffer.u32[i] != 0)
				@throw [OFInvalidFormatException exception];

		return nil;
	}

	entry = [[[OFTarArchiveEntry alloc]
	    of_initWithHeader: buffer.c] autorelease];

	_lastReturnedStream = [[OFTarArchive_FileReadStream alloc]
	    initWithEntry: entry
		   stream: _stream];

	return entry;
}

- (OFStream *)streamForReadingCurrentEntry
{
	return [[_lastReturnedStream retain] autorelease];
}
@end

@implementation OFTarArchive_FileReadStream
- initWithEntry: (OFTarArchiveEntry *)entry
	 stream: (OFStream *)stream
{
	self = [super init];

	@try {
		_entry = [entry copy];
		_stream = [stream retain];
		_toRead = [entry size];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	[self close];

	[_entry release];

	[super dealloc];
}

- (size_t)lowlevelReadIntoBuffer: (void *)buffer
			  length: (size_t)length
{
	size_t ret;

	if (_stream == nil)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (_atEndOfStream)
		return 0;

	if ((uint64_t)length > _toRead)
		length = (size_t)_toRead;

	ret = [_stream readIntoBuffer: buffer
			       length: length];

	if (ret == 0)
		_atEndOfStream = true;

	_toRead -= ret;

	return ret;
}

- (bool)lowlevelIsAtEndOfStream
{
	if (_stream == nil)
		@throw [OFNotOpenException exceptionWithObject: self];

	return _atEndOfStream;
}

- (bool)hasDataInReadBuffer
{
	return ([super hasDataInReadBuffer] || [_stream hasDataInReadBuffer]);
}

- (void)close
{
	[_stream release];
	_stream = nil;

	[super close];
}

- (void)of_skip
{
	char buffer[512];
	uint64_t size;

	while (_toRead >= 512) {
		[_stream readIntoBuffer: buffer
			    exactLength: 512];
		_toRead -= 512;
	}

	if (_toRead > 0) {
		[_stream readIntoBuffer: buffer
			    exactLength: (size_t)_toRead];
		_toRead = 0;
	}

	size = [_entry size];

	if (size % 512 != 0)
		[_stream readIntoBuffer: buffer
			    exactLength: 512 - ((size_t)size % 512)];
}
@end

#import "OFTarArchiveEntry.h"

OF_ASSUME_NONNULL_BEGIN

@interface OFTarArchiveEntry ()
- (instancetype)of_initWithHeader: (char [_Nonnull 512])header
    OF_METHOD_FAMILY(init);

@end

OF_ASSUME_NONNULL_END

 * 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

@class OFDate;

/*!
 * @brief The type of the archive entry.

} of_tar_archive_entry_type_t;

/*!
 * @class OFTarArchiveEntry OFTarArchiveEntry.h ObjFW/OFTarArchiveEntry.h
 *
 * @brief A class which represents an entry of a tar archive.
 */
@interface OFTarArchiveEntry: OFObject <OFCopying, OFMutableCopying>
{


	OFString *_fileName;
	uint32_t _mode;
	uint64_t _size;
	OFDate *_modificationDate;
	of_tar_archive_entry_type_t _type;
	OFString *_targetFileName;
	OFString *_owner, *_group;
	uint32_t _deviceMajor, _deviceMinor;
}

 * See @ref of_tar_archive_entry_type_t.
 */
@property (readonly, nonatomic) of_tar_archive_entry_type_t type;

/*!
 * The file name of the target (for a hard link or symbolic link).
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFString *targetFileName;

/*!
 * The owner of the file.
 */
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFString *owner;

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

/*!
 * The device major (if the file is a device).
 */
@property (readonly, nonatomic) uint32_t deviceMajor;

/*!
 * The device major (if the file is a device).
 */
@property (readonly, nonatomic) uint32_t deviceMinor;

/*!
 * @brief Creates a new OFTarArchiveEntry with the specified file name.
 *
 * @param fileName The file name for the OFTarArchiveEntry
 * @return A new, autoreleased OFTarArchiveEntry
 */
+ (instancetype)entryWithFileName: (OFString *)fileName;

- init OF_UNAVAILABLE;

/*!
 * @brief Initializes an already allocated OFTarArchiveEntry with the specified
 *	  file name.
 *
 * @param fileName The file name for the OFTarArchiveEntry
 * @return An initialized OFTarArchiveEntry
 */
- initWithFileName: (OFString *)fileName;
@end

OF_ASSUME_NONNULL_END

#import "OFMutableTarArchiveEntry.h"

 *
 * 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.
 */



#include "config.h"

#include <inttypes.h>

#import "OFTarArchiveEntry.h"
#import "OFTarArchiveEntry+Private.h"
#import "OFStream.h"
#import "OFDate.h"


#import "OFOutOfRangeException.h"

static OFString *
stringFromBuffer(const char *buffer, size_t length)
{
	for (size_t i = 0; i < length; i++)
		if (buffer[i] == '\0')

	if (value > max)
		@throw [OFOutOfRangeException exception];

	return value;
}

@implementation OFTarArchiveEntry
+ (instancetype)entryWithFileName: (OFString *)fileName

{
	return [[[self alloc] initWithFileName: fileName] autorelease];


}

- init
{
	OF_INVALID_INIT_METHOD
}

- (instancetype)of_initWithHeader: (char [512])header

{
	self = [super init];

	@try {
		void *pool = objc_autoreleasePoolPush();
		OFString *targetFileName;


		_fileName = [stringFromBuffer(header, 100) copy];
		_mode = (uint32_t)octalValueFromBuffer(
		    header + 100, 8, UINT32_MAX);
		_size = (uint64_t)octalValueFromBuffer(
		    header + 124, 12, UINT64_MAX);
		_modificationDate = [[OFDate alloc]
		    initWithTimeIntervalSince1970:
		    (of_time_interval_t)octalValueFromBuffer(
		    header + 136, 12, UINTMAX_MAX)];
		_type = header[156];

		targetFileName = stringFromBuffer(header + 157, 100);
		if ([targetFileName length] > 0)
			_targetFileName = [targetFileName copy];

		if (_type == '\0')
			_type = OF_TAR_ARCHIVE_ENTRY_TYPE_FILE;

		if (memcmp(header + 257, "ustar\0" "00", 8) == 0) {
			OFString *fileName;

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

	return self;
}

- initWithFileName: (OFString *)fileName
{
	self = [super init];

	@try {
		_fileName = [fileName copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{


	[_fileName release];
	[_modificationDate release];
	[_targetFileName release];
	[_owner release];
	[_group release];

	[super dealloc];
}

- copy

{
	return [self retain];
}


- mutableCopy
{
	OFTarArchiveEntry *copy = [[OFMutableTarArchiveEntry alloc]
	    initWithFileName: _fileName];


	@try {
		copy->_mode = _mode;
		copy->_size = _size;
		copy->_modificationDate = [_modificationDate copy];
		copy->_type = _type;
		copy->_targetFileName = [_targetFileName copy];
		copy->_owner = [_owner copy];
		copy->_group = [_group copy];
		copy->_deviceMajor = _deviceMajor;
		copy->_deviceMinor = _deviceMinor;
	} @catch (id e) {
		[copy release];
		@throw e;
	}



	return copy;

}

- (OFString *)fileName
{
	return _fileName;
}

- (uint32_t)mode
{
	return _mode;

}


- (uint64_t)size
{
	return _size;
}

- (OFDate *)modificationDate
{
	return _modificationDate;
}

- (of_tar_archive_entry_type_t)type
{

	return _type;
}


- (OFString *)targetFileName
{

	return _targetFileName;
}

- (OFString *)owner
{
	return _owner;
}


- (OFString *)group

{
	return _group;
}




- (uint32_t)deviceMajor
{
	return _deviceMajor;
}


- (uint32_t)deviceMinor

{
	return _deviceMinor;
}

- (OFString *)description
{
	void *pool = objc_autoreleasePoolPush();
	OFString *ret = [OFString stringWithFormat: @"<%@:\n"
	     @"\tFile name = %@\n"

	_lastReturnedStream = [[OFZIPArchive_FileStream alloc]
	     initWithStream: _stream
	    localFileHeader: localFileHeader];

	objc_autoreleasePoolPop(pool);

	return [[_lastReturnedStream retain] autorelease];
}
@end

@implementation OFZIPArchive_LocalFileHeader
- initWithStream: (OFStream *)stream
{
	self = [super init];

	while ((entry = [_archive nextEntry]) != nil) {
		void *pool = objc_autoreleasePoolPush();
		OFString *fileName = [entry fileName];
		OFString *outFileName = [fileName stringByStandardizingPath];
		OFArray OF_GENERIC(OFString *) *pathComponents;
		OFString *directory;
		OFFile *output;
		OFStream *stream;
		uint64_t written = 0, size = [entry size];
		int8_t percent = -1, newPercent;

		if (!all && ![files containsObject: fileName])
			continue;

		if ([entry type] != OF_TAR_ARCHIVE_ENTRY_TYPE_FILE) {

				outFileName: outFileName])
			goto outer_loop_end;

		output = [OFFile fileWithPath: outFileName
					 mode: @"w"];
		setPermissions(outFileName, entry);

		stream = [_archive streamForReadingCurrentEntry];

		while (![stream isAtEndOfStream]) {
			ssize_t length = [app copyBlockFromStream: stream
							 toStream: output
							 fileName: fileName];

			if (length < 0) {
				app->_exitStatus = 1;
				goto outer_loop_end;
			}

		return;
	}

	files = [OFMutableSet setWithArray: files_];

	while ((entry = [_archive nextEntry]) != nil) {
		OFString *fileName = [entry fileName];
		OFStream *stream;

		if (![files containsObject: fileName])
			continue;

		stream = [_archive streamForReadingCurrentEntry];

		while (![stream isAtEndOfStream]) {
			ssize_t length = [app copyBlockFromStream: stream
							 toStream: of_stdout
							 fileName: fileName];

			if (length < 0) {
				app->_exitStatus = 1;
				return;
			}
		}

		[files removeObject: fileName];
		[stream close];

		if ([files count] == 0)
			break;
	}

	for (OFString *file in files) {
		[of_stderr writeLine: OF_LOCALIZED(@"file_not_in_archive",
		    @"File %[file] is not in the archive!",
		    @"file", file)];
		app->_exitStatus = 1;
	}
}
@end