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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 "InitiateConnectionCommand.h"
#include "Request.h"
#include "DownloadEngine.h"
#include "Option.h"
#include "Logger.h"
#include "LogFactory.h"
#include "message.h"
#include "prefs.h"
#include "NameResolver.h"
#include "SocketCore.h"
#include "FileEntry.h"
#include "RequestGroup.h"
#include "Segment.h"
#include "a2functional.h"
#include "InitiateConnectionCommandFactory.h"
#include "util.h"
#include "RecoverableException.h"
#include "fmt.h"
namespace aria2 {
InitiateConnectionCommand::InitiateConnectionCommand
(cuid_t cuid,
const SharedHandle<Request>& req,
const SharedHandle<FileEntry>& fileEntry,
RequestGroup* requestGroup,
DownloadEngine* e)
: AbstractCommand(cuid, req, fileEntry, requestGroup, e)
{
setTimeout(getOption()->getAsInt(PREF_DNS_TIMEOUT));
// give a chance to be executed in the next loop in DownloadEngine
setStatus(Command::STATUS_ONESHOT_REALTIME);
disableReadCheckSocket();
disableWriteCheckSocket();
}
InitiateConnectionCommand::~InitiateConnectionCommand() {}
bool InitiateConnectionCommand::executeInternal() {
std::string hostname;
uint16_t port;
SharedHandle<Request> proxyRequest = createProxyRequest();
if(!proxyRequest) {
hostname = getRequest()->getHost();
port = getRequest()->getPort();
} else {
hostname = proxyRequest->getHost();
port = proxyRequest->getPort();
}
std::vector<std::string> addrs;
std::string ipaddr = resolveHostname(addrs, hostname, port);
if(ipaddr.empty()) {
getDownloadEngine()->addCommand(this);
return false;
}
try {
Command* command = createNextCommand(hostname, ipaddr, port,
addrs, proxyRequest);
getDownloadEngine()->addCommand(command);
return true;
} catch(RecoverableException& ex) {
// Catch exception and retry another address.
// See also AbstractCommand::checkIfConnectionEstablished
// TODO ipaddr might not be used if pooled sockt was found.
getDownloadEngine()->markBadIPAddress(hostname, ipaddr, port);
if(!getDownloadEngine()->findCachedIPAddress(hostname, port).empty()) {
A2_LOG_INFO_EX(EX_EXCEPTION_CAUGHT, ex);
A2_LOG_INFO(fmt(MSG_CONNECT_FAILED_AND_RETRY,
getCuid(),
ipaddr.c_str(), port));
Command* command =
InitiateConnectionCommandFactory::createInitiateConnectionCommand
(getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
getDownloadEngine());
getDownloadEngine()->setNoWait(true);
getDownloadEngine()->addCommand(command);
return true;
}
getDownloadEngine()->removeCachedIPAddress(hostname, port);
throw;
}
}
void InitiateConnectionCommand::setConnectedAddrInfo
(const SharedHandle<Request>& req,
const std::string& hostname,
const SharedHandle<SocketCore>& socket)
{
std::pair<std::string, uint16_t> peerAddr;
socket->getPeerInfo(peerAddr);
req->setConnectedAddrInfo(hostname, peerAddr.first, peerAddr.second);
}
} // namespace aria2
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