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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef _D_CHUNK_CHECKSUM_VALIDATOR_H_
#define _D_CHUNK_CHECKSUM_VALIDATOR_H_
#include "common.h"
#include "DiskWriter.h"
#include "BitfieldMan.h"
#ifdef ENABLE_MESSAGE_DIGEST
#include "messageDigest.h"
#endif // ENABLE_MESSAGE_DIGEST
#include "LogFactory.h"
#include "FileAllocationMonitor.h"
#include "NullFileAllocationMonitor.h"
class ChunkChecksumValidator {
#ifdef ENABLE_MESSAGE_DIGEST
private:
DiskWriterHandle diskWriter;
MessageDigestContext::DigestAlgo algo;
FileAllocationMonitorHandle fileAllocationMonitor;
const Logger* logger;
void validateSameLengthChecksum(BitfieldMan* bitfieldMan,
int32_t index,
const string& expectedChecksum,
int32_t thisLength,
int32_t checksumLength);
void validateDifferentLengthChecksum(BitfieldMan* bitfieldMan,
int32_t index,
const string& expectedChecksum,
int32_t thisLength,
int32_t checksumLength);
public:
ChunkChecksumValidator():
diskWriter(0),
algo(DIGEST_ALGO_SHA1),
fileAllocationMonitor(new NullFileAllocationMonitor()),
logger(LogFactory::getInstance())
{}
~ChunkChecksumValidator() {}
void validate(BitfieldMan* bitfieldMan,
const Strings& checksums,
int32_t checksumLength);
void setDiskWriter(const DiskWriterHandle& diskWriter) {
this->diskWriter = diskWriter;
}
void setDigestAlgo(const MessageDigestContext::DigestAlgo& algo) {
this->algo = algo;
}
void setFileAllocationMonitor(const FileAllocationMonitorHandle& monitor) {
this->fileAllocationMonitor = monitor;
}
#endif // ENABLE_MESSAGE_DIGEST
};
#endif // _D_CHUNK_CHECKSUM_VALIDATOR_H_
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