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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 "UTMetadataRequestExtensionMessage.h"
#include "bencode2.h"
#include "util.h"
#include "a2functional.h"
#include "bittorrent_helper.h"
#include "DlAbortEx.h"
#include "fmt.h"
#include "BtMessageFactory.h"
#include "BtMessageDispatcher.h"
#include "Peer.h"
#include "UTMetadataRejectExtensionMessage.h"
#include "UTMetadataDataExtensionMessage.h"
#include "BtConstants.h"
#include "DownloadContext.h"
#include "BtMessage.h"
#include "PieceStorage.h"
#include "ExtensionMessageRegistry.h"
#include "BtExtendedMessage.h"
namespace aria2 {
UTMetadataRequestExtensionMessage::UTMetadataRequestExtensionMessage
(uint8_t extensionMessageID):UTMetadataExtensionMessage(extensionMessageID),
dispatcher_(0),
messageFactory_(0)
{}
UTMetadataRequestExtensionMessage::~UTMetadataRequestExtensionMessage() {}
std::string UTMetadataRequestExtensionMessage::getPayload()
{
Dict dict;
dict.put("msg_type", Integer::g(0));
dict.put("piece", Integer::g(getIndex()));
return bencode2::encode(&dict);
}
std::string UTMetadataRequestExtensionMessage::toString() const
{
return fmt("ut_metadata request piece=%lu",
static_cast<unsigned long>(getIndex()));
}
void UTMetadataRequestExtensionMessage::doReceivedAction()
{
auto attrs = bittorrent::getTorrentAttrs(dctx_);
uint8_t id = peer_->getExtensionMessageID
(ExtensionMessageRegistry::UT_METADATA);
if(attrs->metadata.empty()) {
std::shared_ptr<UTMetadataRejectExtensionMessage> m
(new UTMetadataRejectExtensionMessage(id));
m->setIndex(getIndex());
dispatcher_->addMessageToQueue
(messageFactory_->createBtExtendedMessage(m));
}else if(getIndex()*METADATA_PIECE_SIZE < attrs->metadataSize) {
std::shared_ptr<UTMetadataDataExtensionMessage> m
(new UTMetadataDataExtensionMessage(id));
m->setIndex(getIndex());
m->setTotalSize(attrs->metadataSize);
std::string::const_iterator begin =
attrs->metadata.begin()+getIndex()*METADATA_PIECE_SIZE;
std::string::const_iterator end =
(getIndex()+1)*METADATA_PIECE_SIZE <= attrs->metadata.size()?
attrs->metadata.begin()+(getIndex()+1)*METADATA_PIECE_SIZE:
attrs->metadata.end();
m->setData(begin, end);
dispatcher_->addMessageToQueue
(messageFactory_->createBtExtendedMessage(m));
} else {
throw DL_ABORT_EX
(fmt("Metadata piece index is too big. piece=%lu",
static_cast<unsigned long>(getIndex())));
}
}
void UTMetadataRequestExtensionMessage::setDownloadContext
(const std::shared_ptr<DownloadContext>& dctx)
{
dctx_ = dctx;
}
void UTMetadataRequestExtensionMessage::setPeer(const std::shared_ptr<Peer>& peer)
{
peer_ = peer;
}
} // namespace aria2
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