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/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2009 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 --> */
#include "UTMetadataDataExtensionMessage.h"
#include "bencode2.h"
#include "util.h"
#include "a2functional.h"
#include "DownloadContext.h"
#include "UTMetadataRequestTracker.h"
#include "PieceStorage.h"
#include "BtConstants.h"
#include "MessageDigest.h"
#include "message_digest_helper.h"
#include "bittorrent_helper.h"
#include "DiskAdaptor.h"
#include "Piece.h"
#include "Logger.h"
#include "LogFactory.h"
#include "DlAbortEx.h"
#include "fmt.h"
namespace aria2 {
UTMetadataDataExtensionMessage::UTMetadataDataExtensionMessage(
uint8_t extensionMessageID)
: UTMetadataExtensionMessage{extensionMessageID},
totalSize_{0},
dctx_{nullptr},
pieceStorage_{nullptr},
tracker_{nullptr}
{
}
std::string UTMetadataDataExtensionMessage::getPayload()
{
Dict dict;
dict.put("msg_type", Integer::g(1));
dict.put("piece", Integer::g(getIndex()));
dict.put("total_size", Integer::g(totalSize_));
return bencode2::encode(&dict) + data_;
}
std::string UTMetadataDataExtensionMessage::toString() const
{
return fmt("ut_metadata data piece=%lu",
static_cast<unsigned long>(getIndex()));
}
void UTMetadataDataExtensionMessage::doReceivedAction()
{
if (tracker_->tracks(getIndex())) {
A2_LOG_DEBUG(fmt("ut_metadata index=%lu found in tracking list",
static_cast<unsigned long>(getIndex())));
tracker_->remove(getIndex());
pieceStorage_->getDiskAdaptor()->writeData(
reinterpret_cast<const unsigned char*>(data_.c_str()), data_.size(),
getIndex() * METADATA_PIECE_SIZE);
pieceStorage_->completePiece(pieceStorage_->getPiece(getIndex()));
if (pieceStorage_->downloadFinished()) {
std::string metadata = util::toString(pieceStorage_->getDiskAdaptor());
unsigned char infoHash[INFO_HASH_LENGTH];
message_digest::digest(infoHash, INFO_HASH_LENGTH,
MessageDigest::sha1().get(), metadata.data(),
metadata.size());
if (memcmp(infoHash, bittorrent::getInfoHash(dctx_), INFO_HASH_LENGTH) ==
0) {
A2_LOG_INFO("Got ut_metadata");
}
else {
A2_LOG_INFO("Got wrong ut_metadata");
for (size_t i = 0; i < dctx_->getNumPieces(); ++i) {
pieceStorage_->markPieceMissing(i);
}
throw DL_ABORT_EX("Got wrong ut_metadata");
}
}
}
else {
A2_LOG_DEBUG(fmt("ut_metadata index=%lu is not tracked",
static_cast<unsigned long>(getIndex())));
}
}
void UTMetadataDataExtensionMessage::setTotalSize(size_t totalSize)
{
totalSize_ = totalSize;
}
size_t UTMetadataDataExtensionMessage::getTotalSize() const
{
return totalSize_;
}
void UTMetadataDataExtensionMessage::setData(const std::string& data)
{
data_ = data;
}
const std::string& UTMetadataDataExtensionMessage::getData() const
{
return data_;
}
void UTMetadataDataExtensionMessage::setPieceStorage(PieceStorage* pieceStorage)
{
pieceStorage_ = pieceStorage;
}
void UTMetadataDataExtensionMessage::setUTMetadataRequestTracker(
UTMetadataRequestTracker* tracker)
{
tracker_ = tracker;
}
void UTMetadataDataExtensionMessage::setDownloadContext(DownloadContext* dctx)
{
dctx_ = dctx;
}
} // namespace aria2
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