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F4KXL_DStarGateway/APRSWriterThread.cpp

290 lines
6.8 KiB

/*
* Copyright (C) 2010-2014,2018,2020 by Jonathan Naylor G4KLX
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cassert>
#include <sstream>
#include <iostream>
#include <boost/algorithm/string.hpp>
#include "APRSWriterThread.h"
#include "DStarDefines.h"
#include "Utils.h"
#include "Defs.h"
#include "Log.h"
// #define DUMP_TX
const unsigned int APRS_TIMEOUT = 10U;
CAPRSWriterThread::CAPRSWriterThread(const std::string& callsign, const std::string& password, const std::string& address, const std::string& hostname, unsigned int port) :
CThread(),
m_username(callsign),
m_password(password),
m_ssid(callsign),
m_socket(hostname, port, address),
m_queue(20U),
m_exit(false),
m_connected(false),
m_reconnectTimer(1000U),
m_tries(0U),
m_APRSReadCallback(NULL),
m_filter(""),
m_clientName("ircDDBGateway")
{
assert(!callsign.empty());
assert(!password.empty());
assert(!hostname.empty());
assert(port > 0U);
m_username[LONG_CALLSIGN_LENGTH - 1U] = ' ';
boost::trim(m_username);
boost::to_upper(m_username);
m_ssid = m_ssid.substr(LONG_CALLSIGN_LENGTH - 1U, 1);
}
CAPRSWriterThread::CAPRSWriterThread(const std::string& callsign, const std::string& password, const std::string& address, const std::string& hostname, unsigned int port, const std::string& filter, const std::string& clientName) :
CThread(),
m_username(callsign),
m_password(password),
m_ssid(callsign),
m_socket(hostname, port, address),
m_queue(20U),
m_exit(false),
m_connected(false),
m_reconnectTimer(1000U),
m_tries(0U),
m_APRSReadCallback(NULL),
m_filter(filter),
m_clientName(clientName)
{
assert(!callsign.empty());
assert(!password.empty());
assert(!hostname.empty());
assert(port > 0U);
m_username[LONG_CALLSIGN_LENGTH - 1U] = ' ';
boost::trim(m_username);
boost::to_upper(m_username);
m_ssid = m_ssid.substr(LONG_CALLSIGN_LENGTH - 1U, 1);
}
CAPRSWriterThread::~CAPRSWriterThread()
{
m_username.clear();
m_password.clear();
}
bool CAPRSWriterThread::start()
{
Create();
Run();
return true;
}
void* CAPRSWriterThread::Entry()
{
CLog::logInfo("Starting the APRS Writer thread");
m_connected = connect();
if (!m_connected) {
CLog::logInfo("Connect attempt to the APRS server has failed");
startReconnectionTimer();
}
try {
while (!m_exit) {
if (!m_connected) {
if (m_reconnectTimer.isRunning() && m_reconnectTimer.hasExpired()) {
m_reconnectTimer.stop();
m_connected = connect();
if (!m_connected) {
CLog::logInfo("Reconnect attempt to the APRS server has failed");
startReconnectionTimer();
}
}
}
if (m_connected) {
m_tries = 0U;
if(!m_queue.empty()){
char* p = m_queue.getData();
std::string text(p);
CLog::logInfo("APRS ==> %s", text.c_str());
::strcat(p, "\r\n");
bool ret = m_socket.write((unsigned char*)p, ::strlen(p));
if (!ret) {
m_connected = false;
m_socket.close();
CLog::logInfo("Connection to the APRS thread has failed");
startReconnectionTimer();
}
delete[] p;
}
{
std::string line;
int length = m_socket.readLine(line, APRS_TIMEOUT);
/*if (length == 0)
CLog::logWarning((wxT("No response from the APRS server after %u seconds"), APRS_TIMEOUT);*/
if (length < 0) {
m_connected = false;
m_socket.close();
CLog::logInfo("Error when reading from the APRS server");
startReconnectionTimer();
}
if(length > 0 && line[0] != '#'//check if we have something and if that something is an APRS frame
&& m_APRSReadCallback != NULL)//do we have someone wanting an APRS Frame?
{
//CLog::logInfo("Received APRS Frame : ") + line);
m_APRSReadCallback(std::string(line));
}
}
}
}
if (m_connected)
m_socket.close();
while (!m_queue.empty()) {
char* p = m_queue.getData();
delete[] p;
}
}
catch (std::exception& e) {
std::string message(e.what());
CLog::logInfo("Exception raised in the APRS Writer thread - \"%s\"", message.c_str());
}
catch (...) {
CLog::logInfo("Unknown exception raised in the APRS Writer thread");
}
CLog::logInfo("Stopping the APRS Writer thread");
return NULL;
}
void CAPRSWriterThread::setReadAPRSCallback(ReadAPRSFrameCallback cb)
{
m_APRSReadCallback = cb;
}
void CAPRSWriterThread::write(const char* data)
{
assert(data != NULL);
if (!m_connected)
return;
unsigned int len = ::strlen(data);
char* p = new char[len + 5U];
::strcpy(p, data);
m_queue.addData(p);
}
bool CAPRSWriterThread::isConnected() const
{
return m_connected;
}
void CAPRSWriterThread::stop()
{
m_exit = true;
Wait();
}
void CAPRSWriterThread::clock(unsigned int ms)
{
m_reconnectTimer.clock(ms);
}
bool CAPRSWriterThread::connect()
{
bool ret = m_socket.open();
if (!ret)
return false;
//wait for lgin banner
int length;
std::string serverResponse("");
length = m_socket.readLine(serverResponse, APRS_TIMEOUT);
if (length == 0) {
CLog::logInfo("No reply from the APRS server after %u seconds", APRS_TIMEOUT);
m_socket.close();
return false;
}
CLog::logInfo("Received login banner : %s", serverResponse.c_str());
std::string filter(m_filter);
if (filter.length() > 0) filter = " filter " + filter;
std::stringstream connectString;
connectString << "User " << m_username << "-" << m_ssid
<< " pass " << m_password
<< " vers " << (m_clientName.length() ? m_clientName : "ircDDBGateway")
<< filter;
//CLog::logInfo("Connect String : ") + connectString);
ret = m_socket.writeLine(connectString.str());
if (!ret) {
m_socket.close();
return false;
}
length = m_socket.readLine(serverResponse, APRS_TIMEOUT);
if (length == 0) {
CLog::logInfo("No reply from the APRS server after %u seconds", APRS_TIMEOUT);
m_socket.close();
return false;
}
if (length < 0) {
CLog::logInfo("Error when reading from the APRS server");
m_socket.close();
return false;
}
CLog::logInfo("Response from APRS server: %s", serverResponse.c_str());
CLog::logInfo("Connected to the APRS server");
return true;
}
void CAPRSWriterThread::startReconnectionTimer()
{
// Clamp at a ten minutes reconnect time
m_tries++;
if (m_tries > 10U)
m_tries = 10U;
m_reconnectTimer.setTimeout(m_tries * 60U);
m_reconnectTimer.start();
}

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