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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 "CreateRequestCommand.h"
#include "InitiateConnectionCommandFactory.h"
#include "RequestGroup.h"
#include "Segment.h"
#include "DownloadContext.h"
#include "DlAbortEx.h"
#include "DownloadEngine.h"
#include "SocketCore.h"
#include "SegmentMan.h"
#include "prefs.h"
#include "Option.h"
#include "RequestGroupMan.h"
#include "FileEntry.h"
#include "SocketRecvBuffer.h"
#include "LogFactory.h"
#include "wallclock.h"
#include "DownloadFailureException.h"
namespace aria2 {
CreateRequestCommand::CreateRequestCommand(cuid_t cuid,
RequestGroup* requestGroup,
DownloadEngine* e)
: AbstractCommand(cuid, std::shared_ptr<Request>(),
std::shared_ptr<FileEntry>(), requestGroup, e,
std::shared_ptr<SocketCore>(),
std::shared_ptr<SocketRecvBuffer>(), false)
{
setStatus(Command::STATUS_ONESHOT_REALTIME);
disableReadCheckSocket();
disableWriteCheckSocket();
}
bool CreateRequestCommand::executeInternal()
{
if (getSegments().empty()) {
setFileEntry(getDownloadContext()->findFileEntryByOffset(0));
}
else {
// We assume all segments belongs to same file.
setFileEntry(getDownloadContext()->findFileEntryByOffset(
getSegments().front()->getPositionToWrite()));
}
std::vector<std::pair<size_t, std::string>> usedHosts;
if (getOption()->getAsBool(PREF_SELECT_LEAST_USED_HOST)) {
getDownloadEngine()->getRequestGroupMan()->getUsedHosts(usedHosts);
}
setRequest(
getFileEntry()->getRequest(getRequestGroup()->getURISelector().get(),
getOption()->getAsBool(PREF_REUSE_URI),
usedHosts, getOption()->get(PREF_REFERER),
// Don't use HEAD request when file
// size is known.
// Use HEAD for dry-run mode.
(getFileEntry()->getLength() == 0 &&
getOption()->getAsBool(PREF_USE_HEAD)) ||
getOption()->getAsBool(PREF_DRY_RUN)
? Request::METHOD_HEAD
: Request::METHOD_GET));
if (!getRequest()) {
if (getSegmentMan()) {
getSegmentMan()->ignoreSegmentFor(getFileEntry());
}
if (getOption()->getAsBool(PREF_DRY_RUN)) {
// For dry run mode, just throwing DlAbortEx makes infinite
// loop, since we don't have SegmentMan, and we cannot tell all
// hopes were abandoned.
throw DOWNLOAD_FAILURE_EXCEPTION2("No URI available.",
getRequestGroup()->getLastErrorCode());
}
// In this case, the error might be already set in RequestGroup,
// so use it here.
throw DL_ABORT_EX2("No URI available.",
getRequestGroup()->getLastErrorCode());
}
else if (getRequest()->getWakeTime() > global::wallclock()) {
A2_LOG_DEBUG("This request object is still sleeping.");
getFileEntry()->poolRequest(getRequest());
// Reset request of this command. Without this, request is doubly
// counted (1 for pooled and another one in this command) and
// AbstractCommand::execute() will behave badly.
resetRequest();
addCommandSelf();
return false;
}
getDownloadEngine()->setNoWait(true);
getDownloadEngine()->addCommand(
InitiateConnectionCommandFactory::createInitiateConnectionCommand(
getCuid(), getRequest(), getFileEntry(), getRequestGroup(),
getDownloadEngine()));
return true;
}
} // namespace aria2
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