| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Milian Wolff <milian.wolff@kdab.com> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtWebChannel module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
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| ** |
| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
| ** |
| ** "Redistribution and use in source and binary forms, with or without |
| ** modification, are permitted provided that the following conditions are |
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| ****************************************************************************/ |
| |
| #include "websockettransport.h" |
| |
| #include <QDebug> |
| #include <QJsonDocument> |
| #include <QJsonObject> |
| #include <QWebSocket> |
| |
| /*! |
| \brief QWebChannelAbstractSocket implementation that uses a QWebSocket internally. |
| |
| The transport delegates all messages received over the QWebSocket over its |
| textMessageReceived signal. Analogously, all calls to sendTextMessage will |
| be send over the QWebSocket to the remote client. |
| */ |
| |
| /*! |
| Construct the transport object and wrap the given socket. |
| |
| The socket is also set as the parent of the transport object. |
| */ |
| WebSocketTransport::WebSocketTransport(QWebSocket *socket) |
| : QWebChannelAbstractTransport(socket) |
| , m_socket(socket) |
| { |
| connect(socket, &QWebSocket::textMessageReceived, |
| this, &WebSocketTransport::textMessageReceived); |
| connect(socket, &QWebSocket::disconnected, |
| this, &WebSocketTransport::deleteLater); |
| } |
| |
| /*! |
| Destroys the WebSocketTransport. |
| */ |
| WebSocketTransport::~WebSocketTransport() |
| { |
| m_socket->deleteLater(); |
| } |
| |
| /*! |
| Serialize the JSON message and send it as a text message via the WebSocket to the client. |
| */ |
| void WebSocketTransport::sendMessage(const QJsonObject &message) |
| { |
| QJsonDocument doc(message); |
| m_socket->sendTextMessage(QString::fromUtf8(doc.toJson(QJsonDocument::Compact))); |
| } |
| |
| /*! |
| Deserialize the stringified JSON messageData and emit messageReceived. |
| */ |
| void WebSocketTransport::textMessageReceived(const QString &messageData) |
| { |
| QJsonParseError error; |
| QJsonDocument message = QJsonDocument::fromJson(messageData.toUtf8(), &error); |
| if (error.error) { |
| qWarning() << "Failed to parse text message as JSON object:" << messageData |
| << "Error is:" << error.errorString(); |
| return; |
| } else if (!message.isObject()) { |
| qWarning() << "Received JSON message that is not an object: " << messageData; |
| return; |
| } |
| emit messageReceived(message.object(), this); |
| } |