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142 lines
5.3 KiB
142 lines
5.3 KiB
/*
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* Copyright (C) 2021-2022 by Geoffrey Merck F4FXL / KC3FRA
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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 <string>
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#include <cmath>
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#include <boost/algorithm/string.hpp>
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#include "APRSFixedIdFrameProvider.h"
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#include "StringUtils.h"
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CAPRSFixedIdFrameProvider::CAPRSFixedIdFrameProvider(const std::string& gateway) :
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CAPRSIdFrameProvider(gateway, 20U) // Initial timeout of 20 seconds
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{
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}
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bool CAPRSFixedIdFrameProvider::buildAPRSFramesInt(const CAPRSEntry * entry, std::vector<CAPRSFrame *>& frames)
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{
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if (entry == nullptr)
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return false;
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// Default values aren't passed on
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if (entry->getLatitude() == 0.0 && entry->getLongitude() == 0.0)
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return false;
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frames.clear();
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time_t now;
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::time(&now);
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struct tm* tm = ::gmtime(&now);
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std::string desc;
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if (entry->getBand().length() > 1U) {
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if (entry->getFrequency() != 0.0)
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desc = CStringUtils::string_format("Data %.5lfMHz", entry->getFrequency());
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else
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desc = "Data";
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} else {
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if (entry->getFrequency() != 0.0)
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desc = CStringUtils::string_format("Voice %.5lfMHz %c%.4lfMHz",
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entry->getFrequency(),
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entry->getOffset() < 0.0 ? '-' : '+',
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std::fabs(entry->getOffset()));
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else
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desc = "Voice";
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}
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std::string band;
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if (entry->getFrequency() >= 1200.0)
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band = "1.2";
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else if (entry->getFrequency() >= 420.0)
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band = "440";
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else if (entry->getFrequency() >= 144.0)
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band = "2m";
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else if (entry->getFrequency() >= 50.0)
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band = "6m";
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else if (entry->getFrequency() >= 28.0)
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band = "10m";
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double tempLat = ::fabs(entry->getLatitude());
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double tempLong = ::fabs(entry->getLongitude());
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double latitude = ::floor(tempLat);
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double longitude = ::floor(tempLong);
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latitude = (tempLat - latitude) * 60.0 + latitude * 100.0;
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longitude = (tempLong - longitude) * 60.0 + longitude * 100.0;
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std::string lat;
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if (latitude >= 1000.0F)
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lat = CStringUtils::string_format("%.2lf", latitude);
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else if (latitude >= 100.0F)
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lat = CStringUtils::string_format("0%.2lf", latitude);
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else if (latitude >= 10.0F)
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lat = CStringUtils::string_format("00%.2lf", latitude);
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else
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lat = CStringUtils::string_format("000%.2lf", latitude);
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std::string lon;
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if (longitude >= 10000.0F)
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lon = CStringUtils::string_format("%.2lf", longitude);
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else if (longitude >= 1000.0F)
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lon = CStringUtils::string_format("0%.2lf", longitude);
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else if (longitude >= 100.0F)
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lon = CStringUtils::string_format("00%.2lf", longitude);
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else if (longitude >= 10.0F)
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lon = CStringUtils::string_format("000%.2lf", longitude);
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else
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lon = CStringUtils::string_format("0000%.2lf", longitude);
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// Convert commas to periods in the latitude and longitude
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boost::replace_all(lat, ",", ".");
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boost::replace_all(lon, ",", ".");
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std::string body = CStringUtils::string_format(";%-7s%-2s*%02d%02d%02dz%s%cD%s%caRNG%04.0lf/A=%06.0lf %s %s\r\n",
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entry->getCallsign().c_str(), entry->getBand().c_str(),
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tm->tm_mday, tm->tm_hour, tm->tm_min,
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lat.c_str(), (entry->getLatitude() < 0.0F) ? 'S' : 'N',
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lon.c_str(), (entry->getLongitude() < 0.0F) ? 'W' : 'E',
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entry->getRange() * 0.6214, entry->getAGL() * 3.28, band.c_str(), desc.c_str());
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CAPRSFrame * frame = new CAPRSFrame(m_gateway + "-S",
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"APD5T1",
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{ "TCPIP*", "qAC" , m_gateway + "-GS" },
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body, APFT_OBJECT);
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frames.push_back(frame);
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if (entry->getBand().length() == 1U) {
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body = CStringUtils::string_format("!%s%cD%s%c&RNG%04.0lf/A=%06.0lf %s %s\r\n",
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lat.c_str(), (entry->getLatitude() < 0.0F) ? 'S' : 'N',
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lon.c_str(), (entry->getLongitude() < 0.0F) ? 'W' : 'E',
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entry->getRange() * 0.6214, entry->getAGL() * 3.28, band.c_str(), desc.c_str());
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frame = new CAPRSFrame(entry->getCallsign() + "-" + entry->getBand(),
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"APD5T2",
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{ "TCPIP*", "qAC", entry->getCallsign() + "-" + entry->getBand() + "S"},
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body, APFT_POSITION);
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frames.push_back(frame);
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}
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setTimeout(20U * 60U);//20 minutes, plenty enough for fixed
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return true;
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} |