mirror of https://github.com/aria2/aria2
237 lines
8.4 KiB
C++
237 lines
8.4 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) 2006 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 "FtpInitiateConnectionCommand.h"
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#include <map>
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#include "DownloadEngine.h"
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#include "Option.h"
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#include "Request.h"
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#include "FtpNegotiationCommand.h"
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#include "HttpRequest.h"
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#include "Segment.h"
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#include "HttpRequestCommand.h"
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#include "FtpTunnelRequestCommand.h"
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#include "DlAbortEx.h"
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#include "Logger.h"
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#include "LogFactory.h"
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#include "message.h"
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#include "prefs.h"
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#include "HttpConnection.h"
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#include "SocketCore.h"
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#include "util.h"
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#include "AuthConfigFactory.h"
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#include "AuthConfig.h"
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#include "fmt.h"
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#include "SocketRecvBuffer.h"
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#include "BackupIPv4ConnectCommand.h"
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#include "FtpNegotiationConnectChain.h"
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#include "FtpTunnelRequestConnectChain.h"
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#include "HttpRequestConnectChain.h"
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#ifdef HAVE_LIBSSH2
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#include "SftpNegotiationConnectChain.h"
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#include "SftpNegotiationCommand.h"
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#endif // HAVE_LIBSSH2
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namespace aria2 {
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FtpInitiateConnectionCommand::FtpInitiateConnectionCommand(
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cuid_t cuid, const std::shared_ptr<Request>& req,
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const std::shared_ptr<FileEntry>& fileEntry, RequestGroup* requestGroup,
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DownloadEngine* e)
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: InitiateConnectionCommand(cuid, req, fileEntry, requestGroup, e)
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{
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}
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FtpInitiateConnectionCommand::~FtpInitiateConnectionCommand() = default;
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std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommandProxied(
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const std::string& hostname, const std::string& addr, uint16_t port,
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const std::vector<std::string>& resolvedAddresses,
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const std::shared_ptr<Request>& proxyRequest)
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{
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std::string options;
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std::shared_ptr<SocketCore> pooledSocket;
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std::string proxyMethod = resolveProxyMethod(getRequest()->getProtocol());
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// sftp always use tunnel mode
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if (proxyMethod == V_GET) {
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pooledSocket = getDownloadEngine()->popPooledSocket(
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getRequest()->getHost(), getRequest()->getPort(),
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proxyRequest->getHost(), proxyRequest->getPort());
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}
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else {
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pooledSocket = getDownloadEngine()->popPooledSocket(
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options, getRequest()->getHost(), getRequest()->getPort(),
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getDownloadEngine()
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->getAuthConfigFactory()
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->createAuthConfig(getRequest(), getOption().get())
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->getUser(),
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proxyRequest->getHost(), proxyRequest->getPort());
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}
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if (!pooledSocket) {
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A2_LOG_INFO(fmt(MSG_CONNECTING_TO_SERVER, getCuid(), addr.c_str(), port));
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createSocket();
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getSocket()->establishConnection(addr, port);
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getRequest()->setConnectedAddrInfo(hostname, addr, port);
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auto c = make_unique<ConnectCommand>(getCuid(), getRequest(), proxyRequest,
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getFileEntry(), getRequestGroup(),
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getDownloadEngine(), getSocket());
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if (proxyMethod == V_GET) {
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// Use GET for FTP via HTTP proxy.
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getRequest()->setMethod(Request::METHOD_GET);
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c->setControlChain(std::make_shared<HttpRequestConnectChain>());
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}
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else if (proxyMethod == V_TUNNEL) {
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c->setControlChain(std::make_shared<FtpTunnelRequestConnectChain>());
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}
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else {
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// Unreachable
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assert(0);
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return nullptr;
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}
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setupBackupConnection(hostname, addr, port, c.get());
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return std::move(c);
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}
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setConnectedAddrInfo(getRequest(), hostname, pooledSocket);
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if (proxyMethod == V_TUNNEL) {
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#ifdef HAVE_LIBSSH2
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if (getRequest()->getProtocol() == "sftp") {
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return make_unique<SftpNegotiationCommand>(
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getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
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getDownloadEngine(), pooledSocket,
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SftpNegotiationCommand::SEQ_SFTP_OPEN);
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}
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#endif // HAVE_LIBSSH2
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// options contains "baseWorkingDir"
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return make_unique<FtpNegotiationCommand>(
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getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
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getDownloadEngine(), pooledSocket,
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FtpNegotiationCommand::SEQ_SEND_CWD_PREP, options);
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}
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assert(getRequest()->getProtocol() == "ftp");
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if (proxyMethod != V_GET) {
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assert(0);
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return nullptr;
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}
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// Use GET for FTP via HTTP proxy.
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getRequest()->setMethod(Request::METHOD_GET);
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auto socketRecvBuffer = std::make_shared<SocketRecvBuffer>(pooledSocket);
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auto hc = std::make_shared<HttpConnection>(getCuid(), pooledSocket,
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socketRecvBuffer);
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auto c = make_unique<HttpRequestCommand>(
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getCuid(), getRequest(), getFileEntry(), getRequestGroup(), hc,
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getDownloadEngine(), pooledSocket);
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c->setProxyRequest(proxyRequest);
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return std::move(c);
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}
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std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommandPlain(
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const std::string& hostname, const std::string& addr, uint16_t port,
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const std::vector<std::string>& resolvedAddresses)
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{
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std::string options;
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std::shared_ptr<SocketCore> pooledSocket =
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getDownloadEngine()->popPooledSocket(
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options, resolvedAddresses, getRequest()->getPort(),
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getDownloadEngine()
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->getAuthConfigFactory()
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->createAuthConfig(getRequest(), getOption().get())
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->getUser());
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if (!pooledSocket) {
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A2_LOG_INFO(fmt(MSG_CONNECTING_TO_SERVER, getCuid(), addr.c_str(), port));
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createSocket();
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getSocket()->establishConnection(addr, port);
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getRequest()->setConnectedAddrInfo(hostname, addr, port);
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auto c = make_unique<ConnectCommand>(getCuid(), getRequest(), nullptr,
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getFileEntry(), getRequestGroup(),
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getDownloadEngine(), getSocket());
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if (getRequest()->getProtocol() == "sftp") {
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#ifdef HAVE_LIBSSH2
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c->setControlChain(std::make_shared<SftpNegotiationConnectChain>());
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#else // !HAVE_LIBSSH2
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assert(0);
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#endif // !HAVE_LIBSSH2
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}
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else {
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c->setControlChain(std::make_shared<FtpNegotiationConnectChain>());
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}
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setupBackupConnection(hostname, addr, port, c.get());
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return std::move(c);
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}
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setConnectedAddrInfo(getRequest(), hostname, pooledSocket);
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#ifdef HAVE_LIBSSH2
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if (getRequest()->getProtocol() == "sftp") {
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return make_unique<SftpNegotiationCommand>(
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getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
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getDownloadEngine(), pooledSocket,
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SftpNegotiationCommand::SEQ_SFTP_OPEN);
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}
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#endif // HAVE_LIBSSH2
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// options contains "baseWorkingDir"
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return make_unique<FtpNegotiationCommand>(
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getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
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getDownloadEngine(), pooledSocket,
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FtpNegotiationCommand::SEQ_SEND_CWD_PREP, options);
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}
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std::unique_ptr<Command> FtpInitiateConnectionCommand::createNextCommand(
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const std::string& hostname, const std::string& addr, uint16_t port,
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const std::vector<std::string>& resolvedAddresses,
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const std::shared_ptr<Request>& proxyRequest)
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{
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if (proxyRequest) {
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return createNextCommandProxied(hostname, addr, port, resolvedAddresses,
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proxyRequest);
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}
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return createNextCommandPlain(hostname, addr, port, resolvedAddresses);
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}
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} // namespace aria2
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