Fix backward-compatibility down to Qt 5.12.5

Author: timschneeb

3rdparty/http/src/cachedhttp.h

@@ -12,7 +12,7 @@ class CachedHttp : public Http {
     void setMaxSize(uint maxSize);
     void setCachePostRequests(bool value) { cachePostRequests = value; }
     void setIgnoreHostname(bool value) { ignoreHostname = value; }
-    auto &getValidators() { return validators; };
+    QMap<QByteArray, std::function<bool(const HttpReply &)>> &getValidators() { return validators; };
     HttpReply *request(const HttpRequest &req);
 
 private:

3rdparty/http/src/localcache.cpp

@@ -41,13 +41,11 @@ QByteArray LocalCache::hash(const QByteArray &s) {
 }
 
 bool LocalCache::isCached(const QString &path) {
-    bool cached = QFile::exists(path) &&
+    /*bool cached = QFile::exists(path) &&
                   (maxSeconds == 0 || QFileInfo(path).birthTime().secsTo(
-                                              QDateTime::currentDateTimeUtc()) < maxSeconds);
-#ifndef QT_NO_DEBUG_OUTPUT
-    if (!cached) misses++;
-#endif
-    return cached;
+                                              QDateTime::currentDateTimeUtc()) < maxSeconds);*/
+
+    return false; //TODO remove this lib
 }
 
 QByteArray LocalCache::value(const QByteArray &key) {
@@ -132,7 +130,6 @@ void LocalCache::expire() {
     while (it.hasNext()) {
         QString path = it.next();
         QFileInfo info = it.fileInfo();
-        cacheItems.insert(info.birthTime(), path);
         totalSize += info.size();
         qApp->processEvents();
     }

src/subprojects/AutoEqIntegration/GzipDownloader.cpp

@@ -21,9 +21,7 @@ bool GzipDownloader::start(QNetworkReply *reply, QDir _extractionPath)
     extractionPath = _extractionPath;
     networkReply = reply;
     connect(networkReply, &QIODevice::readyRead, this, &GzipDownloader::onDataAvailable);
-#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
-    connect(networkReply, &QNetworkReply::error, this, &GzipDownloader::onErrorOccurred);
-#else
+#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
     connect(networkReply, &QNetworkReply::errorOccurred, this, &GzipDownloader::onErrorOccurred);
 #endif
     connect(networkReply, &QNetworkReply::downloadProgress, this, &GzipDownloader::downloadProgressUpdated);