Geoffrey Merck
4 years ago
parent
b2358d338b
commit
6197d61ef4
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/*
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* Copyright (C) 2010-2014,2018,2020 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <cassert>
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#include <sstream>
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#include <iostream>
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#include <boost/algorithm/string.hpp>
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#include "APRSWriterThread.h"
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#include "DStarDefines.h"
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#include "Utils.h"
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#include "Defs.h"
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// #define DUMP_TX
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const unsigned int APRS_TIMEOUT = 10U;
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CAPRSWriterThread::CAPRSWriterThread(const std::string& callsign, const std::string& password, const std::string& address, const std::string& hostname, unsigned int port) :
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m_username(callsign),
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m_password(password),
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m_ssid(callsign),
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m_socket(hostname, port, address),
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m_queue(20U),
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m_exit(false),
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m_connected(false),
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m_reconnectTimer(1000U),
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m_tries(0U),
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m_APRSReadCallback(NULL),
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m_filter(""),
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m_clientName("ircDDBGateway")
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{
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assert(!callsign.empty());
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assert(!password.empty());
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assert(!hostname.empty());
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assert(port > 0U);
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m_username[LONG_CALLSIGN_LENGTH - 1U] = ' ';
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boost::trim(m_username);
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boost::to_upper(m_username);
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m_ssid = m_ssid.substr(LONG_CALLSIGN_LENGTH - 1U, 1);
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}
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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) :
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m_username(callsign),
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m_password(password),
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m_ssid(callsign),
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m_socket(hostname, port, address),
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m_queue(20U),
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m_exit(false),
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m_connected(false),
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m_reconnectTimer(1000U),
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m_tries(0U),
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m_APRSReadCallback(NULL),
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m_filter(filter),
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m_clientName(clientName)
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{
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assert(!callsign.empty());
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assert(!password.empty());
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assert(!hostname.empty());
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assert(port > 0U);
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m_username[LONG_CALLSIGN_LENGTH - 1U] = ' ';
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boost::trim(m_username);
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boost::to_upper(m_username);
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m_ssid = m_ssid.substr(LONG_CALLSIGN_LENGTH - 1U, 1);
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}
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CAPRSWriterThread::~CAPRSWriterThread()
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{
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m_username.clear();
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m_password.clear();
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}
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bool CAPRSWriterThread::start()
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{
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Create();
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Run();
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return true;
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}
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void* CAPRSWriterThread::Entry()
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{
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printf("Starting the APRS Writer thread");
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m_connected = connect();
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if (!m_connected) {
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printf("Connect attempt to the APRS server has failed");
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startReconnectionTimer();
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}
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try {
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while (!m_exit) {
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if (!m_connected) {
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if (m_reconnectTimer.isRunning() && m_reconnectTimer.hasExpired()) {
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m_reconnectTimer.stop();
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m_connected = connect();
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if (!m_connected) {
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printf("Reconnect attempt to the APRS server has failed");
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startReconnectionTimer();
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}
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}
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}
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if (m_connected) {
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m_tries = 0U;
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if(!m_queue.empty()){
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char* p = m_queue.getData();
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std::string text(p);
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printf("APRS ==> %s", text.c_str());
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::strcat(p, "\r\n");
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bool ret = m_socket.write((unsigned char*)p, ::strlen(p));
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if (!ret) {
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m_connected = false;
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m_socket.close();
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printf("Connection to the APRS thread has failed");
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startReconnectionTimer();
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}
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delete[] p;
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}
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{
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std::string line;
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int length = m_socket.readLine(line, APRS_TIMEOUT);
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/*if (length == 0)
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wxLogWarning(wxT("No response from the APRS server after %u seconds"), APRS_TIMEOUT);*/
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if (length < 0) {
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m_connected = false;
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m_socket.close();
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printf("Error when reading from the APRS server");
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startReconnectionTimer();
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}
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if(length > 0 && line[0] != '#'//check if we have something and if that something is an APRS frame
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&& m_APRSReadCallback != NULL)//do we have someone wanting an APRS Frame?
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{
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//printf("Received APRS Frame : ") + line);
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m_APRSReadCallback(std::string(line));
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}
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}
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}
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}
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if (m_connected)
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m_socket.close();
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while (!m_queue.empty()) {
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char* p = m_queue.getData();
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delete[] p;
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}
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}
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catch (std::exception& e) {
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std::string message(e.what());
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printf("Exception raised in the APRS Writer thread - \"%s\"", message.c_str());
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}
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catch (...) {
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printf("Unknown exception raised in the APRS Writer thread");
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}
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printf("Stopping the APRS Writer thread");
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return NULL;
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}
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void CAPRSWriterThread::setReadAPRSCallback(ReadAPRSFrameCallback cb)
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{
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m_APRSReadCallback = cb;
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}
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void CAPRSWriterThread::write(const char* data)
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{
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assert(data != NULL);
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if (!m_connected)
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return;
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unsigned int len = ::strlen(data);
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char* p = new char[len + 5U];
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::strcpy(p, data);
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m_queue.addData(p);
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}
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bool CAPRSWriterThread::isConnected() const
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{
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return m_connected;
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}
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void CAPRSWriterThread::stop()
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{
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m_exit = true;
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Wait();
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}
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void CAPRSWriterThread::clock(unsigned int ms)
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{
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m_reconnectTimer.clock(ms);
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}
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bool CAPRSWriterThread::connect()
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{
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bool ret = m_socket.open();
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if (!ret)
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return false;
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//wait for lgin banner
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int length;
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std::string serverResponse("");
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length = m_socket.readLine(serverResponse, APRS_TIMEOUT);
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if (length == 0) {
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printf("No reply from the APRS server after %u seconds", APRS_TIMEOUT);
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m_socket.close();
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return false;
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}
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printf("Received login banner : %s", serverResponse.c_str());
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std::string filter(m_filter);
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if (filter.length() > 0) filter = " filter " + filter;
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std::stringstream connectString;
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connectString << "User " << m_username << "-" << m_ssid
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<< " pass " << m_password
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<< " vers " << (m_clientName.length() ? m_clientName : "ircDDBGateway")
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<< filter;
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//printf("Connect String : ") + connectString);
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ret = m_socket.writeLine(connectString.str());
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if (!ret) {
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m_socket.close();
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return false;
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}
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length = m_socket.readLine(serverResponse, APRS_TIMEOUT);
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if (length == 0) {
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printf("No reply from the APRS server after %u seconds", APRS_TIMEOUT);
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m_socket.close();
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return false;
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}
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if (length < 0) {
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printf("Error when reading from the APRS server");
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m_socket.close();
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return false;
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}
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printf("Response from APRS server: %s", serverResponse.c_str());
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printf("Connected to the APRS server");
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return true;
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}
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void CAPRSWriterThread::startReconnectionTimer()
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{
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// Clamp at a ten minutes reconnect time
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m_tries++;
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if (m_tries > 10U)
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m_tries = 10U;
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m_reconnectTimer.setTimeout(m_tries * 60U);
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m_reconnectTimer.start();
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}
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@ -0,0 +1,67 @@
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/*
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* Copyright (C) 2010,2011,2012,2018,2020 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef APRSWriterThread_H
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#define APRSWriterThread_H
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#include "TCPReaderWriterClient.h"
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#include "RingBuffer.h"
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#include "Timer.h"
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#include "Thread.h"
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typedef void (*ReadAPRSFrameCallback)(const std::string&);
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class CAPRSWriterThread : public CThread {
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public:
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CAPRSWriterThread(const std::string& callsign, const std::string& password, const std::string& address, const std::string& hostname, unsigned int port);
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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);
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virtual ~CAPRSWriterThread();
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virtual bool start();
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virtual bool isConnected() const;
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virtual void write(const char* data);
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virtual void* Entry();
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virtual void stop();
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void clock(unsigned int ms);
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void setReadAPRSCallback(ReadAPRSFrameCallback cb);
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private:
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std::string m_username;
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std::string m_password;
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std::string m_ssid;
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CTCPReaderWriterClient m_socket;
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CRingBuffer<char*> m_queue;
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bool m_exit;
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bool m_connected;
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CTimer m_reconnectTimer;
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unsigned int m_tries;
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ReadAPRSFrameCallback m_APRSReadCallback;
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std::string m_filter;
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std::string m_clientName;
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bool connect();
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void startReconnectionTimer();
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};
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#endif
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