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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 "UTMetadataPostDownloadHandler.h"
#include "bittorrent_helper.h"
#include "RequestGroup.h"
#include "download_helper.h"
#include "RecoverableException.h"
#include "A2STR.h"
#include "DownloadContext.h"
#include "Logger.h"
#include "LogFactory.h"
#include "util.h"
#include "a2functional.h"
#include "DiskAdaptor.h"
#include "PieceStorage.h"
#include "bencode2.h"
#include "message.h"
#include "prefs.h"
#include "Option.h"
#include "fmt.h"
#include "RequestGroupMan.h"
namespace aria2 {
namespace {
class Criteria:public RequestGroupCriteria
{
public:
virtual bool match(const RequestGroup* requestGroup) const CXX11_OVERRIDE
{
auto& dctx = requestGroup->getDownloadContext();
if(dctx->hasAttribute(CTX_ATTR_BT)) {
if(bittorrent::getTorrentAttrs(dctx)->metadata.empty()) {
return true;
}
}
return false;
}
};
} // namespace
UTMetadataPostDownloadHandler::UTMetadataPostDownloadHandler()
{
setCriteria(make_unique<Criteria>());
}
void UTMetadataPostDownloadHandler::getNextRequestGroups
(std::vector<std::shared_ptr<RequestGroup> >& groups,
RequestGroup* requestGroup) const
{
auto& dctx =requestGroup->getDownloadContext();
auto attrs = bittorrent::getTorrentAttrs(dctx);
std::string metadata =
util::toString(requestGroup->getPieceStorage()->getDiskAdaptor());
std::string torrent = bittorrent::metadata2Torrent(metadata, attrs);
if(requestGroup->getOption()->getAsBool(PREF_BT_SAVE_METADATA)) {
std::string filename =
util::applyDir(requestGroup->getOption()->get(PREF_DIR),
util::toHex(attrs->infoHash)+".torrent");
if(util::saveAs(filename, torrent)) {
A2_LOG_NOTICE(fmt(MSG_METADATA_SAVED, filename.c_str()));
} else {
A2_LOG_NOTICE(fmt(MSG_METADATA_NOT_SAVED, filename.c_str()));
}
}
if(!requestGroup->getOption()->getAsBool(PREF_BT_METADATA_ONLY)) {
std::vector<std::shared_ptr<RequestGroup>> newRgs;
// Don't adjust announce URI because it has been done when
// RequestGroup is created with magnet URI.
createRequestGroupForBitTorrent(newRgs, requestGroup->getOption(),
std::vector<std::string>(),
A2STR::NIL, torrent, false);
requestGroup->followedBy(newRgs.begin(), newRgs.end());
if(requestGroup->getMetadataInfo()) {
setMetadataInfo(newRgs.begin(), newRgs.end(),
requestGroup->getMetadataInfo());
}
auto rgman = requestGroup->getRequestGroupMan();
if(rgman && rgman->getKeepRunning() &&
requestGroup->getOption()->getAsBool(PREF_PAUSE_METADATA)) {
for(auto& rg : newRgs) {
rg->setPauseRequested(true);
}
}
groups.insert(groups.end(), newRgs.begin(), newRgs.end());
}
}
} // namespace aria2
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