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#import "OFChecksumMismatchException.h"
#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFWriteFailedException.h"
OF_DIRECT_MEMBERS
@interface OFLHAArchiveFileReadStream: OFStream <OFReadyForReadingObserving>
{
OFStream *_stream, *_decompressedStream;
OFLHAArchiveEntry *_entry;
uint32_t _toRead, _bytesConsumed;
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#import "OFChecksumMismatchException.h"
#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFOutOfRangeException.h"
#import "OFTruncatedDataException.h"
#import "OFWriteFailedException.h"
enum {
modeRead,
modeWrite,
modeAppend
};
OF_DIRECT_MEMBERS
@interface OFLHAArchiveFileReadStream: OFStream <OFReadyForReadingObserving>
{
OFStream *_stream, *_decompressedStream;
OFLHAArchiveEntry *_entry;
uint32_t _toRead, _bytesConsumed;
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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = OFLHAArchiveModeRead;
else if ([mode isEqual: @"w"])
_mode = OFLHAArchiveModeWrite;
else if ([mode isEqual: @"a"])
_mode = OFLHAArchiveModeAppend;
else
@throw [OFInvalidArgumentException exception];
if ((_mode == OFLHAArchiveModeWrite ||
_mode == OFLHAArchiveModeAppend) &&
![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
if (_mode == OFLHAArchiveModeAppend)
[(OFSeekableStream *)_stream seekToOffset: 0
whence: SEEK_END];
_encoding = OFStringEncodingISO8859_1;
} @catch (id e) {
[self release];
@throw e;
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{
self = [super init];
@try {
_stream = [stream retain];
if ([mode isEqual: @"r"])
_mode = modeRead;
else if ([mode isEqual: @"w"])
_mode = modeWrite;
else if ([mode isEqual: @"a"])
_mode = modeAppend;
else
@throw [OFInvalidArgumentException exception];
if ((_mode == modeWrite || _mode == modeAppend) &&
![_stream isKindOfClass: [OFSeekableStream class]])
@throw [OFInvalidArgumentException exception];
if (_mode == modeAppend)
[(OFSeekableStream *)_stream seekToOffset: 0
whence: SEEK_END];
_encoding = OFStringEncodingISO8859_1;
} @catch (id e) {
[self release];
@throw e;
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- (OFLHAArchiveEntry *)nextEntry
{
OFLHAArchiveEntry *entry;
char header[21];
size_t headerLen;
if (_mode != OFLHAArchiveModeRead)
@throw [OFInvalidArgumentException exception];
[(OFLHAArchiveFileReadStream *)_lastReturnedStream of_skip];
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
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- (OFLHAArchiveEntry *)nextEntry
{
OFLHAArchiveEntry *entry;
char header[21];
size_t headerLen;
if (_mode != modeRead)
@throw [OFInvalidArgumentException exception];
[(OFLHAArchiveFileReadStream *)_lastReturnedStream of_skip];
@try {
[_lastReturnedStream close];
} @catch (OFNotOpenException *e) {
/* Might have already been closed by the user - that's fine. */
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entry: entry];
return entry;
}
- (OFStream *)streamForReadingCurrentEntry
{
if (_mode != OFLHAArchiveModeRead)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFLHAArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFLHAArchiveEntry *)entry
{
OFString *compressionMethod;
if (_mode != OFLHAArchiveModeWrite && _mode != OFLHAArchiveModeAppend)
@throw [OFInvalidArgumentException exception];
compressionMethod = entry.compressionMethod;
if (![compressionMethod isEqual: @"-lh0-"] &&
![compressionMethod isEqual: @"-lhd-"])
@throw [OFNotImplementedException exceptionWithSelector: _cmd
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entry: entry];
return entry;
}
- (OFStream *)streamForReadingCurrentEntry
{
if (_mode != modeRead)
@throw [OFInvalidArgumentException exception];
if (_lastReturnedStream == nil)
@throw [OFInvalidArgumentException exception];
return [[(OFLHAArchiveFileReadStream *)_lastReturnedStream
retain] autorelease];
}
- (OFStream *)streamForWritingEntry: (OFLHAArchiveEntry *)entry
{
OFString *compressionMethod;
if (_mode != modeWrite && _mode != modeAppend)
@throw [OFInvalidArgumentException exception];
compressionMethod = entry.compressionMethod;
if (![compressionMethod isEqual: @"-lh0-"] &&
![compressionMethod isEqual: @"-lhd-"])
@throw [OFNotImplementedException exceptionWithSelector: _cmd
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