blob: 32adc03836f75087f87369e6baef507d6571b633 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
#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();
}
|
