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Move checking the cloud connection into its own files

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This isn't UI related and shouldn't have been in a file full of UI
functionality.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Dirk Hohndel 2015-06-16 06:08:31 -07:00
parent 0fa0eb2879
commit 854f55fd89
6 changed files with 78 additions and 58 deletions
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62
checkcloudconnection.cpp Normal file
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#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();
}