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/* <!-- 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 "UrlRequestInfo.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.");
}
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;
int maxConnection = 0;
Checksum checksum;
if(itr == entry->resources.end()) {
entry->reorderResourcesByPreference();
for_each(entry->resources.begin(), entry->resources.end(),
AccumulateNonP2PUrl(&urls, op->getAsInt(PREF_SPLIT)));
maxConnection =
op->getAsInt(PREF_METALINK_SERVERS)*op->getAsInt(PREF_SPLIT);
// TODO
// set checksum
checksum = entry->checksum;
} else {
// BitTorrent downloading
urls.push_back((*itr)->url);
}
UrlRequestInfoHandle reqInfo = new UrlRequestInfo(urls, maxConnection, op);
reqInfo->setFilename(entry->filename);
reqInfo->setTotalLength(entry->size);
#ifdef ENABLE_MESSAGE_DIGEST
reqInfo->setChecksum(checksum);
if(!entry->chunkChecksum.isNull()) {
reqInfo->setDigestAlgo(entry->chunkChecksum->digestAlgo);
reqInfo->setChunkChecksumLength(entry->chunkChecksum->pieceLength);
reqInfo->setChunkChecksums(entry->chunkChecksum->pieceHashes);
}
#endif // ENABLE_MESSAGE_DIGEST
nextReqInfos.push_front(reqInfo);
}
} catch(RecoverableException* ex) {
logger->error("Exception caught", ex);
delete ex;
fail = true;
}
return nextReqInfos;
}
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