redditwrapper.cpp Example File

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);
      });
  }