mirror of
https://github.com/subsurface/subsurface.git
synced 2024-11-28 13:10:19 +00:00
63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
|
#include <QObject>
|
||
|
|
#include <QTimer>
|
||
|
|
#include <QNetworkAccessManager>
|
||
|
|
#include <QNetworkReply>
|
||
|
|
#include <QEventLoop>
|
||
|
|
|
||
|
|
#include "pref.h"
|
||
|
|
#include "helpers.h"
|
||
|
|
|
||
|
|
#include "checkcloudconnection.h"
|
||
|
|
|
||
|
|
|
||
|
|
CheckCloudConnection::CheckCloudConnection(QObject *parent) : QObject(parent)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#define TEAPOT "/make-latte?number-of-shots=3"
|
||
|
|
#define HTTP_I_AM_A_TEAPOT 418
|
||
|
|
#define MILK "Linus does not like non-fat milk"
|
||
|
|
bool CheckCloudConnection::checkServer()
|
||
|
|
{
|
||
|
|
QTimer timer;
|
||
|
|
timer.setSingleShot(true);
|
||
|
|
QEventLoop loop;
|
||
|
|
QNetworkRequest request;
|
||
|
|
request.setRawHeader("Accept", "text/plain");
|
||
|
|
request.setRawHeader("User-Agent", getUserAgent().toUtf8());
|
||
|
|
request.setUrl(QString(prefs.cloud_base_url) + TEAPOT);
|
||
|
|
QNetworkAccessManager *mgr = new QNetworkAccessManager();
|
||
|
|
QNetworkReply *reply = mgr->get(request);
|
||
|
|
connect(&timer, SIGNAL(timeout()), &loop, SLOT(quit()));
|
||
|
|
connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
|
||
|
|
timer.start(2000); // wait two seconds
|
||
|
|
loop.exec();
|
||
|
|
if (timer.isActive()) {
|
||
|
|
// didn't time out, did we get the right response?
|
||
|
|
timer.stop();
|
||
|
|
if (reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == HTTP_I_AM_A_TEAPOT &&
|
||
|
|
reply->readAll() == QByteArray(MILK)) {
|
||
|
|
reply->deleteLater();
|
||
|
|
mgr->deleteLater();
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
// qDebug() << "did not get expected response - server unreachable" <<
|
||
|
|
// reply->error() << reply->errorString() <<
|
||
|
|
// reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() <<
|
||
|
|
// reply->readAll();
|
||
|
|
} else {
|
||
|
|
disconnect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
|
||
|
|
reply->abort();
|
||
|
|
}
|
||
|
|
reply->deleteLater();
|
||
|
|
mgr->deleteLater();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// helper to be used from C code
|
||
|
|
extern "C" bool canReachCloudServer()
|
||
|
|
{
|
||
|
|
return CheckCloudConnection::checkServer();
|
||
|
|
}
|