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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 --> */
#include "DHTAutoSaveCommand.h"
#include <cstring>
#include "DHTRoutingTable.h"
#include "DHTNode.h"
#include "File.h"
#include "DHTRoutingTableSerializer.h"
#include "RecoverableException.h"
#include "DownloadEngine.h"
#include "DHTBucket.h"
#include "RequestGroupMan.h"
#include "prefs.h"
#include "Option.h"
#include "message.h"
#include "Logger.h"
#include "LogFactory.h"
#include "a2functional.h"
#include "FileEntry.h"
#include "DlAbortEx.h"
#include "fmt.h"
namespace aria2 {
DHTAutoSaveCommand::DHTAutoSaveCommand(cuid_t cuid, DownloadEngine* e,
int family,
std::chrono::seconds interval)
: TimeBasedCommand{cuid, e, std::move(interval)},
family_{family},
routingTable_{nullptr}
{
}
DHTAutoSaveCommand::~DHTAutoSaveCommand() {}
void DHTAutoSaveCommand::preProcess()
{
if (getDownloadEngine()->getRequestGroupMan()->downloadFinished() ||
getDownloadEngine()->isHaltRequested()) {
save();
enableExit();
}
}
void DHTAutoSaveCommand::process() { save(); }
void DHTAutoSaveCommand::save()
{
std::string dhtFile = getDownloadEngine()->getOption()->get(
family_ == AF_INET ? PREF_DHT_FILE_PATH : PREF_DHT_FILE_PATH6);
A2_LOG_INFO(fmt("Saving DHT routing table to %s.", dhtFile.c_str()));
// Removing tempFile is unnecessary because the file is truncated on
// open. But the bug in 1.10.4 creates directory for this path.
// Because it is directory, opening directory as file fails. So we
// first remove it here.
File tempFile(dhtFile + "__temp");
tempFile.remove();
File(File(dhtFile).getDirname()).mkdirs();
std::vector<std::shared_ptr<DHTNode>> nodes;
std::vector<std::shared_ptr<DHTBucket>> buckets;
routingTable_->getBuckets(buckets);
for (const auto& b : buckets) {
std::vector<std::shared_ptr<DHTNode>> goodNodes;
b->getGoodNodes(goodNodes);
nodes.insert(nodes.end(), goodNodes.begin(), goodNodes.end());
}
DHTRoutingTableSerializer serializer(family_);
serializer.setLocalNode(localNode_);
serializer.setNodes(nodes);
try {
serializer.serialize(dhtFile);
}
catch (RecoverableException& e) {
A2_LOG_ERROR_EX(fmt("Exception caught while saving DHT routing table to %s",
dhtFile.c_str()),
e);
}
}
void DHTAutoSaveCommand::setLocalNode(const std::shared_ptr<DHTNode>& localNode)
{
localNode_ = localNode;
}
void DHTAutoSaveCommand::setRoutingTable(DHTRoutingTable* routingTable)
{
routingTable_ = routingTable;
}
} // namespace aria2
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