mirror of https://github.com/kiwix/libkiwix.git
122 lines
3.0 KiB
C++
122 lines
3.0 KiB
C++
/*
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* Copyright 2018 Matthieu Gautier <mgautier@kymeria.fr>
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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 3 of the License, or
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* 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,
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* MA 02110-1301, USA.
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*/
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#include "downloader.h"
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#include "common/pathTools.h"
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#ifndef _WIN32
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# include <unistd.h>
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#endif
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#include <iostream>
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namespace kiwix
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{
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pthread_mutex_t Downloader::globalLock = PTHREAD_MUTEX_INITIALIZER;
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/* Constructor */
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Downloader::Downloader()
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{
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#ifdef ENABLE_LIBARIA2
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aria2::SessionConfig config;
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config.downloadEventCallback = Downloader::downloadEventCallback;
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config.userData = this;
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tmpDir = makeTmpDirectory();
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aria2::KeyVals options;
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options.push_back(std::pair<std::string, std::string>("dir", tmpDir));
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session = aria2::sessionNew(options, config);
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#endif
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}
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/* Destructor */
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Downloader::~Downloader()
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{
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#ifdef ENABLE_LIBARIA2
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aria2::sessionFinal(session);
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#endif
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rmdir(tmpDir.c_str());
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}
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#ifdef ENABLE_LIBARIA2
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int Downloader::downloadEventCallback(aria2::Session* session,
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aria2::DownloadEvent event,
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aria2::A2Gid gid,
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void* userData)
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{
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Downloader* downloader = static_cast<Downloader*>(userData);
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auto fileHandle = downloader->fileHandle;
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auto dh = aria2::getDownloadHandle(session, gid);
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if (!dh) {
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return 0;
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}
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switch (event) {
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case aria2::EVENT_ON_DOWNLOAD_COMPLETE:
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{
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if (dh->getNumFiles() > 0) {
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auto f = dh->getFile(1);
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fileHandle->path = f.path;
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fileHandle->success = true;
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}
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}
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break;
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case aria2::EVENT_ON_DOWNLOAD_ERROR:
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{
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fileHandle->success = false;
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}
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break;
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default:
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break;
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}
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aria2::deleteDownloadHandle(dh);
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return 0;
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}
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#endif
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DownloadedFile Downloader::download(const std::string& url) {
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pthread_mutex_lock(&globalLock);
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DownloadedFile fileHandle;
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#ifdef ENABLE_LIBARIA2
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try {
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std::vector<std::string> uris = {url};
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aria2::KeyVals options;
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aria2::A2Gid gid;
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int ret;
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DownloadedFile fileHandle;
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ret = aria2::addUri(session, &gid, uris, options);
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if (ret < 0) {
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std::cerr << "Failed to download" << std::endl;
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} else {
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this->fileHandle = &fileHandle;
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aria2::run(session, aria2::RUN_DEFAULT);
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}
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} catch (...) {};
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this->fileHandle = nullptr;
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pthread_mutex_unlock(&globalLock);
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#endif
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return fileHandle;
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}
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}
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