torcupnpcontent.cpp

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/* Class TorcUPnPContent
*
* This file is part of the Torc project.
*
* Copyright (C) Mark Kendall 2018
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
* USA.
*/

// Qt
#include <QHostAddress>
#include <QXmlStreamWriter>

// Torc
#include "torclocalcontext.h"
#include "torchttphandler.h"
#include "torcupnp.h"
#include "torcupnpcontent.h"
#include "torcnetwork.h"

TorcUPnPContent::TorcUPnPContent()
  : TorcHTTPHandler(UPNP_DIRECTORY, QStringLiteral("upnp"))
{
}

void TorcUPnPContent::ProcessHTTPRequest(const QString &PeerAddress, int PeerPort, const QString &LocalAddress, int LocalPort, TorcHTTPRequest &Request)
{
    (void)PeerAddress;
    (void)PeerPort;

    // handle options request
    if (Request.GetHTTPRequestType() == HTTPOptions)
    {
        HandleOptions(Request, HTTPHead | HTTPGet | HTTPOptions);
        return;
    }

    // handle device description
    // N.B. this does not check whether the device is actually published on this interface
    if (Request.GetMethod().toLower() == QStringLiteral("description"))
    {
        QHostAddress base(LocalAddress);
        QString url = QStringLiteral("http%1://%2").arg(Request.GetSecure() ? QStringLiteral("s") : QStringLiteral(""), TorcNetwork::IPAddressToLiteral(base, LocalPort, false));
        QByteArray result;
        QXmlStreamWriter xml(&result);
        xml.writeStartDocument(QStringLiteral("1.0"));
        xml.writeStartElement(QStringLiteral("root"));
        xml.writeAttribute(QStringLiteral("xmlns"), QStringLiteral("urn:schemas-upnp-org:device-1-0"));

        xml.writeTextElement(QStringLiteral("URLBase"), url);
        xml.writeStartElement(QStringLiteral("specVersion"));
        xml.writeTextElement(QStringLiteral("major"), QStringLiteral("1"));
        xml.writeTextElement(QStringLiteral("minor"), QStringLiteral("0"));
        xml.writeEndElement(); // specversion

        xml.writeStartElement(QStringLiteral("device"));

        xml.writeTextElement(QStringLiteral("deviceType"), TORC_ROOT_UPNP_DEVICE);
        xml.writeTextElement(QStringLiteral("friendlyName"), QStringLiteral("Torc"));
        xml.writeTextElement(QStringLiteral("manufacturer"), QStringLiteral("Torc"));
        xml.writeTextElement(QStringLiteral("modelName"), QStringLiteral("Torc v1.0"));
        xml.writeTextElement(QStringLiteral("UDN"), QStringLiteral("uuid:%1").arg(gLocalContext->GetUuid()));

        xml.writeStartElement(QStringLiteral("iconList"));
        xml.writeStartElement(QStringLiteral("icon"));
        xml.writeTextElement(QStringLiteral("mimetype"), QStringLiteral("image/png"));
        xml.writeTextElement(QStringLiteral("width"), QStringLiteral("36"));
        xml.writeTextElement(QStringLiteral("height"), QStringLiteral("36"));
        xml.writeTextElement(QStringLiteral("depth"), QStringLiteral("32"));
        xml.writeTextElement(QStringLiteral("url"), QStringLiteral("img/android-icon-36x36.png"));
        xml.writeEndElement(); // icon
        xml.writeEndElement(); // iconlist

        xml.writeEndElement(); // device
        xml.writeEndElement(); // root
        xml.writeEndDocument();

        Request.SetAllowGZip(true);
        Request.SetStatus(HTTP_OK);
        Request.SetResponseType(HTTPResponseXML);
        Request.SetResponseContent(result);
        return;
    }
}