148 lines
4.7 KiB
C++
148 lines
4.7 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 "MetalinkRequestInfo.h"
|
|
#include "Xml2MetalinkProcessor.h"
|
|
#include "prefs.h"
|
|
#include "DlAbortEx.h"
|
|
#include "MultiUrlRequestInfo.h"
|
|
|
|
class AccumulateNonP2PUrl {
|
|
private:
|
|
Strings* urlsPtr;
|
|
int split;
|
|
public:
|
|
AccumulateNonP2PUrl(Strings* urlsPtr,
|
|
int split)
|
|
:urlsPtr(urlsPtr),
|
|
split(split) {}
|
|
|
|
void operator()(const MetalinkResourceHandle& resource) {
|
|
switch(resource->type) {
|
|
case MetalinkResource::TYPE_HTTP:
|
|
case MetalinkResource::TYPE_HTTPS:
|
|
case MetalinkResource::TYPE_FTP:
|
|
for(int s = 1; s <= split; s++) {
|
|
urlsPtr->push_back(resource->url);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
class FindBitTorrentUrl {
|
|
public:
|
|
FindBitTorrentUrl() {}
|
|
|
|
bool operator()(const MetalinkResourceHandle& resource) {
|
|
if(resource->type == MetalinkResource::TYPE_BITTORRENT) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
};
|
|
|
|
RequestInfos MetalinkRequestInfo::execute() {
|
|
Xml2MetalinkProcessor proc;
|
|
RequestInfos nextReqInfos;
|
|
try {
|
|
MetalinkerHandle metalinker = proc.parseFile(metalinkFile);
|
|
MetalinkEntries entries =
|
|
metalinker->queryEntry(op->get(PREF_METALINK_VERSION),
|
|
op->get(PREF_METALINK_LANGUAGE),
|
|
op->get(PREF_METALINK_OS));
|
|
if(entries.size() == 0) {
|
|
printf("No file matched with your preference.\n");
|
|
throw new DlAbortEx("No file matched with your preference.");
|
|
}
|
|
RequestGroups groups;
|
|
for(MetalinkEntries::iterator itr = entries.begin(); itr != entries.end();
|
|
itr++) {
|
|
MetalinkEntryHandle& entry = *itr;
|
|
if(op->defined(PREF_METALINK_LOCATION)) {
|
|
entry->setLocationPreference(op->get(PREF_METALINK_LOCATION), 100);
|
|
}
|
|
entry->dropUnsupportedResource();
|
|
if(entry->resources.size() == 0) {
|
|
continue;
|
|
}
|
|
logger->info("Metalink: Queueing %s for download.",
|
|
entry->filename.c_str());
|
|
MetalinkResources::iterator itr =
|
|
find_if(entry->resources.begin(),
|
|
entry->resources.end(),
|
|
FindBitTorrentUrl());
|
|
Strings urls;
|
|
ChecksumHandle checksum = 0;
|
|
if(itr == entry->resources.end()) {
|
|
entry->reorderResourcesByPreference();
|
|
|
|
for_each(entry->resources.begin(), entry->resources.end(),
|
|
AccumulateNonP2PUrl(&urls, op->getAsInt(PREF_SPLIT)));
|
|
// TODO
|
|
// set checksum
|
|
checksum = entry->checksum;
|
|
} else {
|
|
// BitTorrent downloading
|
|
urls.push_back((*itr)->url);
|
|
}
|
|
RequestGroupHandle rg = new RequestGroup(urls, op);
|
|
rg->setHintFilename(entry->filename);
|
|
rg->setHintTotalLength(entry->size);
|
|
rg->setNumConcurrentCommand(op->getAsInt(PREF_METALINK_SERVERS));
|
|
|
|
#ifdef ENABLE_MESSAGE_DIGEST
|
|
if(entry->chunkChecksum.isNull()) {
|
|
rg->setChecksum(checksum);
|
|
} else {
|
|
ChunkChecksumHandle cc =
|
|
new ChunkChecksum(entry->chunkChecksum->digestAlgo,
|
|
entry->chunkChecksum->pieceHashes,
|
|
entry->chunkChecksum->pieceLength);
|
|
rg->setChunkChecksum(cc);
|
|
}
|
|
#endif // ENABLE_MESSAGE_DIGEST
|
|
groups.push_front(rg);
|
|
}
|
|
MultiUrlRequestInfoHandle reqInfo = new MultiUrlRequestInfo(groups, op);
|
|
nextReqInfos.push_back(reqInfo);
|
|
} catch(RecoverableException* ex) {
|
|
logger->error("Exception caught", ex);
|
|
delete ex;
|
|
fail = true;
|
|
}
|
|
return nextReqInfos;
|
|
}
|