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sdrangel/plugins/feature/aprs/aprsworker.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021 Jon Beniston, M7RCE //
// Copyright (C) 2020 Edouard Griffiths, F4EXB //
// //
// 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 as version 3 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QDebug>
#include <QAbstractSocket>
#include <QTcpServer>
#include <QTcpSocket>
#include "webapi/webapiadapterinterface.h"
#include "webapi/webapiutils.h"
#include "maincore.h"
#include "util/ax25.h"
#include "util/aprs.h"
#include "aprs.h"
#include "aprsworker.h"
MESSAGE_CLASS_DEFINITION(APRSWorker::MsgConfigureAPRSWorker, Message)
APRSWorker::APRSWorker(APRS *aprs, WebAPIAdapterInterface *webAPIAdapterInterface) :
m_aprs(aprs),
m_webAPIAdapterInterface(webAPIAdapterInterface),
m_msgQueueToFeature(nullptr),
m_msgQueueToGUI(nullptr),
m_socket(this)
{
connect(&m_socket, SIGNAL(readyRead()),this, SLOT(recv()));
connect(&m_socket, SIGNAL(connected()), this, SLOT(connected()));
connect(&m_socket, SIGNAL(disconnected()), this, SLOT(disconnected()));
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
connect(&m_socket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), this, &APRSWorker::errorOccurred);
#else
connect(&m_socket, &QAbstractSocket::errorOccurred, this, &APRSWorker::errorOccurred);
#endif
}
APRSWorker::~APRSWorker()
{
m_inputMessageQueue.clear();
}
void APRSWorker::startWork()
{
qDebug("APRSWorker::startWork");
QMutexLocker mutexLocker(&m_mutex);
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
connect(thread(), SIGNAL(finished()), this, SLOT(stopWork()));
// Handle any messages already on the queue
handleInputMessages();
}
void APRSWorker::stopWork()
{
qDebug("APRSWorker::stopWork");
QMutexLocker mutexLocker(&m_mutex);
// Close any existing connection
if (m_socket.isOpen()) {
m_socket.close();
}
disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
}
void APRSWorker::handleInputMessages()
{
Message* message;
while ((message = m_inputMessageQueue.pop()) != nullptr)
{
if (handleMessage(*message)) {
delete message;
}
}
}
bool APRSWorker::handleMessage(const Message& cmd)
{
if (MsgConfigureAPRSWorker::match(cmd))
{
QMutexLocker mutexLocker(&m_mutex);
MsgConfigureAPRSWorker& cfg = (MsgConfigureAPRSWorker&) cmd;
applySettings(cfg.getSettings(), cfg.getForce());
return true;
}
else if (MainCore::MsgPacket::match(cmd))
{
MainCore::MsgPacket& report = (MainCore::MsgPacket&) cmd;
AX25Packet ax25;
APRSPacket *aprs = new APRSPacket();
if (ax25.decode(report.getPacket()))
{
if (aprs->decode(ax25))
{
// See: http://www.aprs-is.net/IGateDetails.aspx for gating rules
if (!aprs->m_via.contains("TCPIP")
&& !aprs->m_via.contains("TCPXX")
&& !aprs->m_via.contains("NOGATE")
&& !aprs->m_via.contains("RFONLY"))
{
aprs->m_dateTime = report.getDateTime();
QString igateMsg = aprs->toTNC2(m_settings.m_igateCallsign);
send(igateMsg.toUtf8(), igateMsg.length());
}
}
}
return true;
}
else
{
return false;
}
}
void APRSWorker::applySettings(const APRSSettings& settings, bool force)
{
qDebug() << "APRSWorker::applySettings:"
<< " m_igateEnabled: " << settings.m_igateEnabled
<< " m_igateServer: " << settings.m_igateServer
<< " m_igatePort: " << settings.m_igatePort
<< " m_igateCallsign: " << settings.m_igateCallsign
<< " m_igateFilter: " << settings.m_igateFilter
<< " force: " << force;
if ((settings.m_igateEnabled != m_settings.m_igateEnabled)
|| (settings.m_igateServer != m_settings.m_igateServer)
|| (settings.m_igatePort != m_settings.m_igatePort)
|| (settings.m_igateFilter != m_settings.m_igateFilter)
|| force)
{
// Close any existing connection
if (m_socket.isOpen())
m_socket.close();
// Open connection
if (settings.m_igateEnabled)
{
if (settings.m_igateServer.isEmpty())
{
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("IGate server name must be specified"));
}
else if (settings.m_igateCallsign.isEmpty())
{
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("IGate callsign must be specified"));
}
else if (settings.m_igatePasscode.isEmpty())
{
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("IGate passcode must be specified"));
}
else
{
qDebug() << "APRSWorker::applySettings: Connecting to " << settings.m_igateServer << ":" << settings.m_igatePort;
m_socket.setSocketOption(QAbstractSocket::LowDelayOption, 1);
m_socket.connectToHost(settings.m_igateServer, settings.m_igatePort);
}
}
}
m_settings = settings;
}
void APRSWorker::connected()
{
qDebug() << "APRSWorker::connected " << m_settings.m_igateServer;
m_loggedIn = false;
}
void APRSWorker::disconnected()
{
qDebug() << "APRSWorker::disconnected";
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("Disconnected"));
}
void APRSWorker::errorOccurred(QAbstractSocket::SocketError socketError)
{
qDebug() << "APRSWorker::errorOccurred: " << socketError;
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create(m_socket.errorString() + " " + socketError));
}
void APRSWorker::recv()
{
char buffer[2048];
while (m_socket.readLine(buffer, sizeof(buffer)) > 0)
{
QString packet(buffer);
qDebug() << "APRSWorker::recv: " << packet;
if (packet.startsWith("#"))
{
if (!m_loggedIn)
{
// Log in with callsign and passcode
QString login = QString("user %1 pass %2 vers SDRangel 6.4.0%3\r\n").arg(m_settings.m_igateCallsign).arg(m_settings.m_igatePasscode).arg(m_settings.m_igateFilter.isEmpty() ? "" : QString(" filter %1").arg(m_settings.m_igateFilter));
send(login.toLatin1(), login.length());
m_loggedIn = true;
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("Connected"));
}
else if (packet.indexOf(QString("logresp %1 unverified").arg(m_settings.m_igateCallsign)) >= 0)
{
if (m_msgQueueToFeature)
m_msgQueueToFeature->push(APRS::MsgReportWorker::create("Invalid IGate callsign or passcode"));
}
}
else if (packet.length() > 0)
{
// Forward to GUI
if (getMessageQueueToGUI())
{
// Convert TNC2 to AX25 raw bytes
QByteArray ax25Packet = APRSPacket::toByteArray(packet);
getMessageQueueToGUI()->push(MainCore::MsgPacket::create(m_aprs, ax25Packet, QDateTime::currentDateTime()));
}
}
}
}
void APRSWorker::send(const char *data, int length)
{
if (m_settings.m_igateEnabled)
{
// Reopen connection if it was lost
if (!m_socket.isOpen())
{
qDebug() << "APRSWorker::send: Reconnecting to " << m_settings.m_igateServer << ":" << m_settings.m_igatePort;
m_socket.connectToHost(m_settings.m_igateServer, m_settings.m_igatePort);
}
// Send data
qDebug() << "APRSWorker::send: " << QString(QByteArray(data, length));
m_socket.write(data, length);
}
}
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