mirror of
https://github.com/moonlight-stream/moonlight-qt
synced 2024-09-20 06:01:57 +00:00
df0c4c8208
Apparently having this object around can lead to background network scans happening that cause WiFi perf degradation.
102 lines
3.7 KiB
C++
102 lines
3.7 KiB
C++
#include "mappingfetcher.h"
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#include "path.h"
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#include <QNetworkReply>
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MappingFetcher::MappingFetcher(QObject *parent) :
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QObject(parent)
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{
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m_Nam = new QNetworkAccessManager(this);
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// Never communicate over HTTP
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m_Nam->setStrictTransportSecurityEnabled(true);
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// Allow HTTP redirects
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m_Nam->setRedirectPolicy(QNetworkRequest::NoLessSafeRedirectPolicy);
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connect(m_Nam, &QNetworkAccessManager::finished,
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this, &MappingFetcher::handleMappingListFetched);
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}
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void MappingFetcher::start()
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{
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if (!m_Nam) {
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Q_ASSERT(m_Nam);
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return;
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}
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#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0) && QT_VERSION < QT_VERSION_CHECK(5, 15, 1) && !defined(QT_NO_BEARERMANAGEMENT)
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// HACK: Set network accessibility to work around QTBUG-80947 (introduced in Qt 5.14.0 and fixed in Qt 5.15.1)
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QT_WARNING_PUSH
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QT_WARNING_DISABLE_DEPRECATED
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m_Nam->setNetworkAccessible(QNetworkAccessManager::Accessible);
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QT_WARNING_POP
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#endif
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QUrl url("https://moonlight-stream.org/SDL_GameControllerDB/gamecontrollerdb.txt");
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QNetworkRequest request(url);
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#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
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request.setAttribute(QNetworkRequest::Http2AllowedAttribute, true);
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#else
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request.setAttribute(QNetworkRequest::HTTP2AllowedAttribute, true);
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#endif
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// Qt 5.12 introduced QNetworkRequest::IfModifiedSinceHeader. We _could_ implement it
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// by hand (including QDateTime conversion to the correct string form) for earlier Qt
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// versions, but that's a pain and this is just an optimization anyway. We'll do a bit
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// of extra work on those legacy Qt versions by fetching the GCDB each time we launch.
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#if QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
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// Only download the file if it's newer than what we have
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QFileInfo existingFileInfo = Path::getCacheFileInfo("gamecontrollerdb.txt");
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if (existingFileInfo.exists()) {
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// Make sure the cached file looks reasonable. It should have some data and
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// the last modified time should not be in the future.
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QDateTime lastModifiedTime = existingFileInfo.lastModified().toUTC();
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if (existingFileInfo.size() > 0 && lastModifiedTime <= QDateTime::currentDateTimeUtc()) {
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request.setHeader(QNetworkRequest::IfModifiedSinceHeader, existingFileInfo.lastModified().toUTC());
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}
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else {
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Path::deleteCacheFile("gamecontrollerdb.txt");
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}
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}
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#endif
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// We'll get a callback when this is finished
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m_Nam->get(request);
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}
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void MappingFetcher::handleMappingListFetched(QNetworkReply* reply)
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{
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Q_ASSERT(reply->isFinished());
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// Delete the QNetworkAccessManager to free resources and
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// prevent the bearer plugin from polling in the background.
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m_Nam->deleteLater();
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m_Nam = nullptr;
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if (reply->error() == QNetworkReply::NoError) {
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// Queue the reply for deletion
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reply->deleteLater();
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// If we get a 304 back, Qt will happily just tell us our request was
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// successful and let us try to write our empty response to disk. Check
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// the status code directly to prevent this.
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if (reply->attribute(QNetworkRequest::HttpStatusCodeAttribute) == 304) {
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qInfo() << "Gamepad mappings are up to date";
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}
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else {
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// Update the cached data on disk for next call to applyMappings()
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QByteArray data = reply->readAll();
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if (!data.isEmpty()) {
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Path::writeCacheFile("gamecontrollerdb.txt", data);
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}
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qInfo() << "Downloaded updated gamepad mappings";
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}
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}
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else {
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qWarning() << "Failed to download updated gamepad mappings:" << reply->error();
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reply->deleteLater();
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}
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}
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