mirror of
https://github.com/tumic0/GPXSee.git
synced 2024-11-28 05:34:47 +01:00
96 lines
2.1 KiB
C++
96 lines
2.1 KiB
C++
#include <QFile>
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#include <QFileInfo>
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#include "config.h"
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#include "downloader.h"
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#if defined(Q_OS_LINUX)
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#define PLATFORM_STR "Linux"
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#elif defined(Q_OS_WIN32)
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#define PLATFORM_STR "Windows"
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#elif defined(Q_OS_MAC)
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#define PLATFORM_STR "OS X"
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#else
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#define PLATFORM_STR "Unknown"
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#endif
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#define USER_AGENT \
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APP_NAME "/" APP_VERSION " (" PLATFORM_STR "; Qt " QT_VERSION_STR ")"
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Downloader::Downloader()
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{
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connect(&_manager, SIGNAL(finished(QNetworkReply*)),
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SLOT(downloadFinished(QNetworkReply*)));
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}
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bool Downloader::doDownload(const Download &dl)
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{
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QUrl url(dl.url());
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if (_errorDownloads.contains(url))
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return false;
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QNetworkRequest request(url);
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request.setAttribute(QNetworkRequest::User, QVariant(dl.file()));
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request.setRawHeader("User-Agent", USER_AGENT);
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QNetworkReply *reply = _manager.get(request);
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_currentDownloads.append(reply);
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return true;
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}
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bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
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{
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QFile file(filename);
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if (!file.open(QIODevice::WriteOnly)) {
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fprintf(stderr, "Error writing map tile: %s: %s\n",
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qPrintable(filename), qPrintable(file.errorString()));
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return false;
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}
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file.write(data->readAll());
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file.close();
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return true;
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}
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void Downloader::downloadFinished(QNetworkReply *reply)
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{
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QUrl url = reply->url();
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if (reply->error()) {
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_errorDownloads.insert(url);
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fprintf(stderr, "Error downloading map tile: %s: %s\n",
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url.toEncoded().constData(), qPrintable(reply->errorString()));
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} else {
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QUrl redirect = reply->attribute(
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QNetworkRequest::RedirectionTargetAttribute).toUrl();
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QString filename = reply->request().attribute(QNetworkRequest::User)
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.toString();
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if (!redirect.isEmpty()) {
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Download dl(redirect, filename);
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doDownload(dl);
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} else
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if (!saveToDisk(filename, reply))
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_errorDownloads.insert(url);
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}
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_currentDownloads.removeAll(reply);
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reply->deleteLater();
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if (_currentDownloads.isEmpty())
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emit finished();
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}
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bool Downloader::get(const QList<Download> &list)
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{
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bool finishEmitted = false;
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for (int i = 0; i < list.count(); i++)
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finishEmitted |= doDownload(list.at(i));
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return finishEmitted;
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}
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