aria2/src/FtpInitiateConnectionComman...

228 lines
8.1 KiB
C++

/* <!-- 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 "FtpInitiateConnectionCommand.h"
#include <map>
#include "DownloadEngine.h"
#include "Option.h"
#include "Request.h"
#include "FtpNegotiationCommand.h"
#include "HttpRequest.h"
#include "Segment.h"
#include "HttpRequestCommand.h"
#include "FtpTunnelRequestCommand.h"
#include "DlAbortEx.h"
#include "Logger.h"
#include "LogFactory.h"
#include "message.h"
#include "prefs.h"
#include "HttpConnection.h"
#include "SocketCore.h"
#include "util.h"
#include "AuthConfigFactory.h"
#include "AuthConfig.h"
#include "fmt.h"
#include "SocketRecvBuffer.h"
#include "BackupIPv4ConnectCommand.h"
#include "FtpNegotiationConnectChain.h"
#include "FtpTunnelRequestConnectChain.h"
#include "HttpRequestConnectChain.h"
namespace aria2 {
FtpInitiateConnectionCommand::FtpInitiateConnectionCommand
(cuid_t cuid,
const std::shared_ptr<Request>& req,
const std::shared_ptr<FileEntry>& fileEntry,
RequestGroup* requestGroup,
DownloadEngine* e)
:InitiateConnectionCommand(cuid, req, fileEntry, requestGroup, e) {}
FtpInitiateConnectionCommand::~FtpInitiateConnectionCommand() {}
std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommandProxied
(const std::string& hostname, const std::string& addr, uint16_t port,
const std::vector<std::string>& resolvedAddresses,
const std::shared_ptr<Request>& proxyRequest)
{
std::string options;
std::shared_ptr<SocketCore> pooledSocket;
std::string proxyMethod = resolveProxyMethod(getRequest()->getProtocol());
if(proxyMethod == V_GET) {
pooledSocket = getDownloadEngine()->popPooledSocket
(getRequest()->getHost(), getRequest()->getPort(),
proxyRequest->getHost(), proxyRequest->getPort());
}
else {
pooledSocket = getDownloadEngine()->popPooledSocket
(options, getRequest()->getHost(), getRequest()->getPort(),
getDownloadEngine()->getAuthConfigFactory()->createAuthConfig
(getRequest(), getOption().get())->getUser(),
proxyRequest->getHost(), proxyRequest->getPort());
}
if(!pooledSocket) {
A2_LOG_INFO(fmt(MSG_CONNECTING_TO_SERVER,
getCuid(), addr.c_str(), port));
createSocket();
getSocket()->establishConnection(addr, port);
getRequest()->setConnectedAddrInfo(hostname, addr, port);
auto c = make_unique<ConnectCommand>(getCuid(),
getRequest(),
proxyRequest,
getFileEntry(),
getRequestGroup(),
getDownloadEngine(),
getSocket());
if(proxyMethod == V_GET) {
// Use GET for FTP via HTTP proxy.
getRequest()->setMethod(Request::METHOD_GET);
std::shared_ptr<HttpRequestConnectChain> chain
(new HttpRequestConnectChain());
c->setControlChain(chain);
} else if(proxyMethod == V_TUNNEL) {
std::shared_ptr<FtpTunnelRequestConnectChain> chain
(new FtpTunnelRequestConnectChain());
c->setControlChain(chain);
} else {
// Unreachable
assert(0);
return nullptr;
}
setupBackupConnection(hostname, addr, port, c.get());
return std::move(c);
}
setConnectedAddrInfo(getRequest(), hostname, pooledSocket);
if(proxyMethod == V_TUNNEL) {
// options contains "baseWorkingDir"
return make_unique<FtpNegotiationCommand>
(getCuid(),
getRequest(),
getFileEntry(),
getRequestGroup(),
getDownloadEngine(),
pooledSocket,
FtpNegotiationCommand::SEQ_SEND_CWD_PREP,
options);
}
if(proxyMethod != V_GET) {
assert(0);
return nullptr;
}
// Use GET for FTP via HTTP proxy.
getRequest()->setMethod(Request::METHOD_GET);
std::shared_ptr<SocketRecvBuffer> socketRecvBuffer
(new SocketRecvBuffer(pooledSocket));
std::shared_ptr<HttpConnection> hc
(new HttpConnection(getCuid(), pooledSocket, socketRecvBuffer));
auto c = make_unique<HttpRequestCommand>(getCuid(),
getRequest(),
getFileEntry(),
getRequestGroup(),
hc,
getDownloadEngine(),
pooledSocket);
c->setProxyRequest(proxyRequest);
return std::move(c);
}
std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommandPlain
(const std::string& hostname, const std::string& addr, uint16_t port,
const std::vector<std::string>& resolvedAddresses)
{
std::string options;
std::shared_ptr<SocketCore> pooledSocket =
getDownloadEngine()->popPooledSocket
(options, resolvedAddresses,
getRequest()->getPort(),
getDownloadEngine()->getAuthConfigFactory()->createAuthConfig
(getRequest(), getOption().get())->getUser());
if(!pooledSocket) {
A2_LOG_INFO(fmt(MSG_CONNECTING_TO_SERVER,
getCuid(), addr.c_str(), port));
createSocket();
getSocket()->establishConnection(addr, port);
getRequest()->setConnectedAddrInfo(hostname, addr, port);
auto c = make_unique<ConnectCommand>(getCuid(),
getRequest(),
nullptr,
getFileEntry(),
getRequestGroup(),
getDownloadEngine(),
getSocket());
std::shared_ptr<FtpNegotiationConnectChain> chain
(new FtpNegotiationConnectChain());
c->setControlChain(chain);
setupBackupConnection(hostname, addr, port, c.get());
return std::move(c);
}
// options contains "baseWorkingDir"
auto command = make_unique<FtpNegotiationCommand>
(getCuid(),
getRequest(),
getFileEntry(),
getRequestGroup(),
getDownloadEngine(),
pooledSocket,
FtpNegotiationCommand::SEQ_SEND_CWD_PREP,
options);
setConnectedAddrInfo(getRequest(), hostname, pooledSocket);
return std::move(command);
}
std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommand
(const std::string& hostname, const std::string& addr, uint16_t port,
const std::vector<std::string>& resolvedAddresses,
const std::shared_ptr<Request>& proxyRequest)
{
if (proxyRequest) {
return createNextCommandProxied(hostname, addr, port, resolvedAddresses,
proxyRequest);
}
return createNextCommandPlain(hostname, addr, port, resolvedAddresses);
}
} // namespace aria2