Prova connessione: timeout 30s, busy indicator, normalizzazione https://, log qDebug per debug su device

src/apiclient.cpp

@@ -4,6 +4,7 @@
 #include "settings.h"
 
 #include <QCryptographicHash>
+#include <QDebug>
 #include <QDir>
 #include <QFile>
 #include <QFileInfo>
@@ -11,6 +12,7 @@
 #include <QNetworkRequest>
 #include <QSslError>
 #include <QStandardPaths>
+#include <QTimer>
 #include <QUrl>
 
 ApiClient::ApiClient(Settings *settings, QObject *parent)
@@ -56,24 +58,37 @@ QNetworkReply *ApiClient::startGet(const QUrl &url)
                 static_cast<void (QNetworkReply::*)(const QList<QSslError> &)>(
                         &QNetworkReply::ignoreSslErrors));
     }
+
+    // timeout di sicurezza (30 s): senza, una richiesta verso un host irraggiungibile
+    // resta appesa all'infinito
+    QTimer *timer = new QTimer(reply);
+    timer->setSingleShot(true);
+    timer->setInterval(30000);
+    connect(timer, &QTimer::timeout, reply, &QNetworkReply::abort);
+    timer->start();
     return reply;
 }
 
 void ApiClient::getFeed(const QString &url)
 {
+    qDebug() << "getFeed request:" << url;
     QNetworkReply *reply = startGet(QUrl(url));
     connect(reply, &QNetworkReply::finished, this, [this, reply]() {
         reply->deleteLater();
         const int status = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
         if (reply->error() != QNetworkReply::NoError || status >= 400) {
             QString message;
-            if (status == 401)
+            if (reply->error() == QNetworkReply::OperationCanceledError)
+                message = QStringLiteral("Timeout: il server non risponde (30 s)");
+            else if (status == 401)
                 message = QStringLiteral(
                         "Autenticazione richiesta (401). Controlla utente e password.");
             else if (status == 404)
                 message = QStringLiteral("Endpoint non trovato (404). Controlla l'indirizzo.");
             else
                 message = reply->errorString();
+            qDebug() << "getFeed ERROR status:" << status
+                     << "error:" << reply->error() << "-" << message;
             emit feedError(message);
             return;
         }
@@ -84,8 +99,11 @@ void ApiClient::getFeed(const QString &url)
         QString feedTitle;
         QString parseError;
         if (OpdsParser::parse(body, &entries, &nextUrl, &feedTitle, &parseError)) {
+            qDebug() << "getFeed OK status:" << status
+                     << "entries:" << entries.size();
             emit feedReady(entries, resolveUrl(nextUrl), feedTitle);
         } else {
+            qDebug() << "getFeed parse error:" << parseError;
             emit feedError(parseError.isEmpty()
                     ? QStringLiteral("Risposta non valida dal server")
                     : parseError);