/qtnetworkauth/examples/oauth/redditclient/redditwrapper.cpp

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#include "redditwrapper.h"



#include <QtGui>

#include <QtCore>

#include <QtNetworkAuth>



const QUrl newUrl("https://oauth.reddit.com/new");

const QUrl hotUrl("https://oauth.reddit.com/hot");

const QUrl liveThreadsUrl("https://oauth.reddit.com/live/XXXX/about.json");



RedditWrapper::RedditWrapper(QObject *parent) : QObject(parent)

{

    auto replyHandler = new QOAuthHttpServerReplyHandler(1337, this);

    oauth2.setReplyHandler(replyHandler);

    oauth2.setAuthorizationUrl(QUrl("https://www.reddit.com/api/v1/authorize"));

    oauth2.setAccessTokenUrl(QUrl("https://www.reddit.com/api/v1/access_token"));

    oauth2.setScope("identity read");



    connect(&oauth2, &QOAuth2AuthorizationCodeFlow::statusChanged, [=](

            QAbstractOAuth::Status status) {

        if (status == QAbstractOAuth::Status::Granted)

            emit authenticated();

    });

    oauth2.setModifyParametersFunction([&](QAbstractOAuth::Stage stage, QVariantMap *parameters) {

        if (stage == QAbstractOAuth::Stage::RequestingAuthorization && isPermanent())

            parameters->insert("duration", "permanent");

    });

    connect(&oauth2, &QOAuth2AuthorizationCodeFlow::authorizeWithBrowser,

            &QDesktopServices::openUrl);

}



RedditWrapper::RedditWrapper(const QString &clientIdentifier, QObject *parent) :

    RedditWrapper(parent)

{

    oauth2.setClientIdentifier(clientIdentifier);

}



QNetworkReply *RedditWrapper::requestHotThreads()

{

    qDebug() << "Getting hot threads...";

    return oauth2.get(hotUrl);

}



bool RedditWrapper::isPermanent() const

{

    return permanent;

}



void RedditWrapper::setPermanent(bool value)

{

    permanent = value;

}



void RedditWrapper::grant()

{

    oauth2.grant();

}



void RedditWrapper::subscribeToLiveUpdates()

{

    qDebug() << "Susbscribing...";

    QNetworkReply *reply = oauth2.get(liveThreadsUrl);

    connect(reply, &QNetworkReply::finished, [=]() {

        reply->deleteLater();

        if (reply->error() != QNetworkReply::NoError) {

            qCritical() << "Reddit error:" << reply->errorString();

            return;

        }



        const auto json = reply->readAll();



        const auto document = QJsonDocument::fromJson(json);

        Q_ASSERT(document.isObject());

        const auto rootObject = document.object();

        const auto dataValue = rootObject.value("data");

        Q_ASSERT(dataValue.isObject());

        const auto dataObject = dataValue.toObject();

        const auto websocketUrlValue = dataObject.value("websocket_url");

        Q_ASSERT(websocketUrlValue.isString() && websocketUrlValue.toString().size());

        const QUrl websocketUrl(websocketUrlValue.toString());

        emit subscribed(websocketUrl);

    });

}