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c4c8094e32
See https://www.kdab.com/goodbye-q_foreach/ This is reduced to the places where the container is const or can be made const without the need to always introduce an extra variable. Sadly qAsConst (Qt 5.7) and std::as_const (C++17) are not available in all supported setups. Also do some minor cleanups along the way. Signed-off-by: Rolf Eike Beer <eike@sf-mail.de>
107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include <QObject>
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#include <QTimer>
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#include <QNetworkAccessManager>
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#include <QNetworkReply>
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#include <QEventLoop>
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#include "pref.h"
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#include "qthelper.h"
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#include "git-access.h"
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#include "checkcloudconnection.h"
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CheckCloudConnection::CheckCloudConnection(QObject *parent) :
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QObject(parent),
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reply(0)
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{
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}
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#define TEAPOT "/make-latte?number-of-shots=3"
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#define HTTP_I_AM_A_TEAPOT 418
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#define MILK "Linus does not like non-fat milk"
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bool CheckCloudConnection::checkServer()
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{
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if (verbose)
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fprintf(stderr, "Checking cloud connection...\n");
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QTimer timer;
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timer.setSingleShot(true);
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QEventLoop loop;
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QNetworkRequest request;
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request.setRawHeader("Accept", "text/plain");
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request.setRawHeader("User-Agent", getUserAgent().toUtf8());
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request.setRawHeader("Client-Id", getUUID().toUtf8());
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request.setUrl(QString(prefs.cloud_base_url) + TEAPOT);
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QNetworkAccessManager *mgr = new QNetworkAccessManager();
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reply = mgr->get(request);
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connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit);
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connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
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connect(reply, &QNetworkReply::sslErrors, this, &CheckCloudConnection::sslErrors);
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for (int seconds = 1; seconds <= prefs.cloud_timeout; seconds++) {
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timer.start(1000); // wait the given number of seconds (default 5)
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loop.exec();
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if (timer.isActive()) {
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// didn't time out, did we get the right response?
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timer.stop();
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if (reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == HTTP_I_AM_A_TEAPOT &&
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reply->readAll() == QByteArray(MILK)) {
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reply->deleteLater();
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mgr->deleteLater();
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if (verbose > 1)
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qWarning() << "Cloud storage: successfully checked connection to cloud server";
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return true;
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}
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} else if (seconds < prefs.cloud_timeout) {
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QString text = tr("Waiting for cloud connection (%n second(s) passed)", "", seconds);
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git_storage_update_progress(qPrintable(text));
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} else {
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disconnect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
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reply->abort();
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}
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}
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git_storage_update_progress(qPrintable(tr("Cloud connection failed")));
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git_local_only = true;
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if (verbose)
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qDebug() << "connection test to cloud server failed" <<
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reply->error() << reply->errorString() <<
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reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() <<
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reply->readAll();
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reply->deleteLater();
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mgr->deleteLater();
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if (verbose)
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qWarning() << "Cloud storage: unable to connect to cloud server";
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return false;
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}
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void CheckCloudConnection::sslErrors(const QList<QSslError> &errorList)
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{
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if (verbose) {
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qDebug() << "Received error response trying to set up https connection with cloud storage backend:";
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for (QSslError err: errorList) {
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qDebug() << err.errorString();
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}
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}
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QSslConfiguration conf = reply->sslConfiguration();
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QSslCertificate cert = conf.peerCertificate();
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QByteArray hexDigest = cert.digest().toHex();
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if (reply->url().toString().contains(prefs.cloud_base_url) &&
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hexDigest == "13ff44c62996cfa5cd69d6810675490e") {
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if (verbose)
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qDebug() << "Overriding SSL check as I recognize the certificate digest" << hexDigest;
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reply->ignoreSslErrors();
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} else {
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if (verbose)
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qDebug() << "got invalid SSL certificate with hex digest" << hexDigest;
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}
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}
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// helper to be used from C code
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extern "C" bool canReachCloudServer()
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{
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if (verbose)
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qWarning() << "Cloud storage: checking connection to cloud server";
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return CheckCloudConnection().checkServer();
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}
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