mirror of https://github.com/aria2/aria2
104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2009 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "UTMetadataDataExtensionMessage.h"
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#include "BDE.h"
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#include "bencode.h"
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#include "util.h"
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#include "a2functional.h"
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#include "DownloadContext.h"
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#include "UTMetadataRequestTracker.h"
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#include "PieceStorage.h"
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#include "BtConstants.h"
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#include "MessageDigestHelper.h"
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#include "bittorrent_helper.h"
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#include "DiskAdaptor.h"
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#include "Piece.h"
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#include "LogFactory.h"
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namespace aria2 {
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UTMetadataDataExtensionMessage::UTMetadataDataExtensionMessage
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(uint8_t extensionMessageID):UTMetadataExtensionMessage(extensionMessageID),
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_logger(LogFactory::getInstance()) {}
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std::string UTMetadataDataExtensionMessage::getPayload()
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{
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BDE dict = BDE::dict();
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dict["msg_type"] = 1;
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dict["piece"] = _index;
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dict["total_size"] = _totalSize;
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return bencode::encode(dict)+_data;
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}
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std::string UTMetadataDataExtensionMessage::toString() const
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{
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return strconcat("ut_metadata data piece=", util::uitos(_index));
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}
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void UTMetadataDataExtensionMessage::doReceivedAction()
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{
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if(_tracker->tracks(_index)) {
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_logger->debug("ut_metadata index=%lu found in tracking list",
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static_cast<unsigned long>(_index));
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_tracker->remove(_index);
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_pieceStorage->getDiskAdaptor()->writeData
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(reinterpret_cast<const unsigned char*>(_data.c_str()), _data.size(),
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_index*METADATA_PIECE_SIZE);
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_pieceStorage->completePiece(_pieceStorage->getPiece(_index));
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if(_pieceStorage->downloadFinished()) {
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std::string metadata = util::toString(_pieceStorage->getDiskAdaptor());
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unsigned char infoHash[INFO_HASH_LENGTH];
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MessageDigestHelper::digest(infoHash, INFO_HASH_LENGTH,
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MessageDigestContext::SHA1,
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metadata.data(), metadata.size());
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const BDE& attrs = _dctx->getAttribute(bittorrent::BITTORRENT);
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if(std::string(&infoHash[0], &infoHash[INFO_HASH_LENGTH]) ==
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attrs[bittorrent::INFO_HASH].s()){
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_logger->info("Got ut_metadata");
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} else {
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_logger->info("Got wrong ut_metadata");
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for(size_t i = 0; i < _dctx->getNumPieces(); ++i) {
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_pieceStorage->markPieceMissing(i);
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}
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}
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}
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} else {
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_logger->debug("ut_metadata index=%lu is not tracked",
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static_cast<unsigned long>(_index));
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}
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}
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} // namespace aria2
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