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*/
#include "config.h"
#import "OFTarArchive.h"
#import "OFTarArchiveEntry.h"
#import "OFTarArchiveEntry+Private.h"
#import "OFStream.h"
#import "OFDate.h"
#import "OFSeekableStream.h"
#import "OFDate.h"
#import "OFStream.h"
#ifdef OF_HAVE_FILES
# import "OFFile.h"
#endif
#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFWriteFailedException.h"
@interface OFTarArchive_FileReadStream: OFStream <OFReadyForReadingObserving>
{
OFTarArchiveEntry *_entry;
OF_KINDOF(OFStream *) _stream;
OFStream *_stream;
uint64_t _toRead;
bool _atEndOfStream, _skipped;
}
- (instancetype)of_initWithStream: (OFStream *)stream
entry: (OFTarArchiveEntry *)entry;
- (void)of_skip;
@end
@interface OFTarArchive_FileWriteStream: OFStream <OFReadyForWritingObserving>
{
OFTarArchiveEntry *_entry;
OF_KINDOF(OFStream *) _stream;
OFStream *_stream;
uint64_t _toWrite;
}
- (instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
- (instancetype)of_initWithStream: (OFStream *)stream
entry: (OFTarArchiveEntry *)entry;
@end
@implementation OFTarArchive: OFObject
@synthesize encoding = _encoding;
+ (instancetype)archiveWithStream: (OF_KINDOF(OFStream *))stream
+ (instancetype)archiveWithStream: (OFStream *)stream
mode: (OFString *)mode
{
return [[[self alloc] initWithStream: stream
mode: mode] autorelease];
}
#ifdef OF_HAVE_FILES
+ (instancetype)archiveWithPath: (OFString *)path
mode: (OFString *)mode
{
return [[[self alloc] initWithPath: path
mode: mode] autorelease];
}
#endif
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithStream: (OF_KINDOF(OFStream *))stream
- (instancetype)initWithStream: (OFStream *)stream
mode: (OFString *)mode
{
self = [super init];
@try {
_stream = [stream retain];
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uint32_t u32[1024 / sizeof(uint32_t)];
} buffer;
bool empty = true;
if (![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
[_stream seekToOffset: -1024
whence: SEEK_END];
[_stream readIntoBuffer: buffer.c
[(OFSeekableStream *)stream seekToOffset: -1024
whence: SEEK_END];
[stream readIntoBuffer: buffer.c
exactLength: 1024];
for (size_t i = 0; i < 1024 / sizeof(uint32_t); i++)
if (buffer.u32[i] != 0)
empty = false;
if (!empty)
@throw [OFInvalidFormatException exception];
[_stream seekToOffset: -1024
whence: SEEK_END];
[(OFSeekableStream *)stream seekToOffset: -1024
whence: SEEK_END];
}
_encoding = OF_STRING_ENCODING_UTF_8;
} @catch (id e) {
[self release];
@throw e;
}
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uint32_t u32[512 / sizeof(uint32_t)];
} buffer;
bool empty = true;
if (_mode != OF_TAR_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
[_lastReturnedStream of_skip];
[(OFTarArchive_FileReadStream *)_lastReturnedStream of_skip];
[_lastReturnedStream close];
[_lastReturnedStream release];
_lastReturnedStream = nil;
if ([_stream isAtEndOfStream])
if (_stream.atEndOfStream)
return nil;
[_stream readIntoBuffer: buffer.c
exactLength: 512];
for (size_t i = 0; i < 512 / sizeof(uint32_t); i++)
if (buffer.u32[i] != 0)
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{
if (_mode != OF_TAR_ARCHIVE_MODE_READ)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFTarArchive_FileReadStream *)_lastReturnedStream
return [[_lastReturnedStream retain] autorelease];
retain] autorelease];
}
- (OFStream <OFReadyForWritingObserving> *)
streamForWritingEntry: (OFTarArchiveEntry *)entry
{
void *pool;
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_lastReturnedStream = [[OFTarArchive_FileWriteStream alloc]
of_initWithStream: _stream
entry: entry];
objc_autoreleasePoolPop(pool);
return [[(OFTarArchive_FileWriteStream *)_lastReturnedStream
return [[_lastReturnedStream retain] autorelease];
retain] autorelease];
}
- (void)close
{
if (_stream == nil)
return;
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entry: (OFTarArchiveEntry *)entry
{
self = [super init];
@try {
_entry = [entry copy];
_stream = [stream retain];
_toRead = [entry size];
_toRead = entry.size;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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@throw [OFNotOpenException exceptionWithObject: self];
return _atEndOfStream;
}
- (bool)hasDataInReadBuffer
{
return ([super hasDataInReadBuffer] || [_stream hasDataInReadBuffer]);
return (super.hasDataInReadBuffer || _stream.hasDataInReadBuffer);
}
- (int)fileDescriptorForReading
{
return ((id <OFReadyForReadingObserving>)_stream)
return [_stream fileDescriptorForReading];
.fileDescriptorForReading;
}
- (void)close
{
[self of_skip];
[_stream release];
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if (_stream == nil || _skipped)
return;
if ([_stream isKindOfClass: [OFSeekableStream class]] &&
_toRead <= INT64_MAX && (of_offset_t)_toRead == (int64_t)_toRead) {
uint64_t size;
[_stream seekToOffset: (of_offset_t)_toRead
whence: SEEK_CUR];
[(OFSeekableStream *)_stream seekToOffset: (of_offset_t)_toRead
whence: SEEK_CUR];
_toRead = 0;
size = [_entry size];
size = _entry.size;
if (size % 512 != 0)
[(OFSeekableStream *)_stream
[_stream seekToOffset: 512 - (size % 512)
whence: SEEK_CUR];
seekToOffset: 512 - (size % 512)
whence: SEEK_CUR];
} else {
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];
size = _entry.size;
if (size % 512 != 0)
[_stream readIntoBuffer: buffer
exactLength: (size_t)(512 - (size % 512))];
}
_skipped = true;
}
@end
@implementation OFTarArchive_FileWriteStream
- (instancetype)of_initWithStream: (OF_KINDOF(OFStream *))stream
- (instancetype)of_initWithStream: (OFStream *)stream
entry: (OFTarArchiveEntry *)entry
{
self = [super init];
@try {
_entry = [entry copy];
_stream = [stream retain];
_toWrite = [entry size];
_toWrite = entry.size;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
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if ((uint64_t)length > _toWrite)
@throw [OFOutOfRangeException exception];
@try {
bytesWritten = [_stream writeBuffer: buffer
length: length];
} @catch (OFWriteFailedException *e) {
_toWrite -= [e bytesWritten];
_toWrite -= e.bytesWritten;
@throw e;
}
_toWrite -= bytesWritten;
return bytesWritten;
}
- (bool)lowlevelIsAtEndOfStream
{
if (_stream == nil)
@throw [OFNotOpenException exceptionWithObject: self];
return (_toWrite == 0);
}
- (int)fileDescriptorForWriting
{
return ((id <OFReadyForWritingObserving>)_stream)
return [_stream fileDescriptorForWriting];
.fileDescriptorForWriting;
}
- (void)close
{
if (_stream == nil)
return;
uint64_t remainder = 512 - [_entry size] % 512;
uint64_t remainder = 512 - _entry.size % 512;
if (_toWrite > 0)
@throw [OFTruncatedDataException exception];
if (remainder != 512) {
bool wasWriteBuffered = [_stream isWriteBuffered];
bool wasWriteBuffered = _stream.writeBuffered;
[_stream setWriteBuffered: true];
while (remainder--)
[_stream writeInt8: 0];
[_stream flushWriteBuffer];
[_stream setWriteBuffered: wasWriteBuffered];
_stream.writeBuffered = wasWriteBuffered;
}
[_stream release];
_stream = nil;
[super close];
}
@end
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