mirror of https://github.com/ShaYmez/MMDVM_CM.git
300 lines
6.9 KiB
C++
300 lines
6.9 KiB
C++
/*
|
|
* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX
|
|
* Copyright (C) 2018 by Andy Uribe CA6JAU
|
|
* Copyright (C) 2018 by Manuel Sanchez EA7EE
|
|
*
|
|
* 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 "APRSReader.h"
|
|
#include "Timer.h"
|
|
#include "Log.h"
|
|
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include <cstring>
|
|
#include <cctype>
|
|
#include <time.h>
|
|
|
|
#if defined(_WIN32) || defined(_WIN64)
|
|
static const unsigned __int64 epoch = ((unsigned __int64)116444736000000000ULL);
|
|
|
|
int gettimeofday(struct timeval * tp, struct timezone * tzp)
|
|
{
|
|
FILETIME file_time;
|
|
SYSTEMTIME system_time;
|
|
ULARGE_INTEGER ularge;
|
|
|
|
GetSystemTime(&system_time);
|
|
SystemTimeToFileTime(&system_time, &file_time);
|
|
ularge.LowPart = file_time.dwLowDateTime;
|
|
ularge.HighPart = file_time.dwHighDateTime;
|
|
|
|
tp->tv_sec = (long)((ularge.QuadPart - epoch) / 10000000L);
|
|
tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
|
|
return 0;
|
|
}
|
|
#else
|
|
#include <sys/time.h>
|
|
#endif
|
|
|
|
const unsigned int APRS_TIMEOUT = 10U;
|
|
|
|
CAPRSReader::CAPRSReader(std::string ApiKey,int refres_time) :
|
|
CThread(),
|
|
m_ApiKey(ApiKey),
|
|
m_cs(),
|
|
m_stop(false),
|
|
m_new_callsign(false),
|
|
m_refres_time(refres_time),
|
|
m_lat_table(),
|
|
m_lon_table(),
|
|
m_time_table()
|
|
{
|
|
m_lat_table.clear();
|
|
m_lon_table.clear();
|
|
m_time_table.clear();
|
|
run();
|
|
}
|
|
|
|
CAPRSReader::~CAPRSReader()
|
|
{
|
|
|
|
}
|
|
|
|
void CAPRSReader::entry()
|
|
{
|
|
LogMessage("Started the APRS Reader lookup thread");
|
|
|
|
while (!m_stop) {
|
|
|
|
while(!m_new_callsign)
|
|
sleep(1000U);
|
|
|
|
load_call();
|
|
|
|
m_new_callsign = false;
|
|
}
|
|
|
|
LogMessage("Stopped the APRS Reader lookup thread");
|
|
}
|
|
|
|
void CAPRSReader::stop()
|
|
{
|
|
m_stop = true;
|
|
}
|
|
|
|
void CAPRSReader::formatGPS(unsigned char *buffer, int latitude, int longitude)
|
|
{
|
|
int lon_sign, lat_sign, a, b;
|
|
|
|
if (longitude < 0) {
|
|
longitude *= -1;
|
|
lon_sign = 0x50;
|
|
} else
|
|
lon_sign = 0x30;
|
|
|
|
if (latitude < 0) {
|
|
lat_sign = 0x30;
|
|
latitude *= -1;
|
|
} else
|
|
lat_sign = 0x50;
|
|
|
|
// Latitude
|
|
int lat_dec = latitude / 10000;
|
|
int lat_uni = (latitude / 1000) % 10;
|
|
*(buffer + 5U) = lat_dec | lat_sign;
|
|
*(buffer + 6U) = lat_uni | lat_sign;
|
|
|
|
int lat_min = (latitude - (lat_dec * 10 + lat_uni) * 1000) * 6;
|
|
|
|
int lat_min_dec = lat_min / 1000;
|
|
int lat_min_uni = (lat_min / 100) % 10;
|
|
*(buffer+7U) = lat_min_dec | lat_sign;
|
|
*(buffer+8U) = lat_min_uni | lat_sign;
|
|
|
|
int lat_frac = lat_min - (lat_min_dec * 10 + lat_min_uni) * 100;
|
|
int lat_frac_dec = lat_frac / 10;
|
|
int lat_frac_uni = lat_frac % 10;
|
|
|
|
int lon_grad = longitude / 1000;
|
|
|
|
if (lon_grad >= 0 && lon_grad <= 9) {
|
|
a = 0x50;
|
|
b = (lon_grad + 0x76U);
|
|
} else if (lon_grad >= 10 && lon_grad <= 99) {
|
|
a = 0x30;
|
|
b = ((lon_grad - 10U) + 0x26U);
|
|
} else if (lon_grad >= 100 && lon_grad <= 109) {
|
|
a = 0x50;
|
|
b = ((lon_grad - 100U) + 0x6CU);
|
|
}
|
|
else {
|
|
a = 0x50;
|
|
b = ((lon_grad - 110U) + 0x26U);
|
|
}
|
|
|
|
*(buffer + 9U) = lat_frac_dec | a;
|
|
*(buffer + 10U) = lat_frac_uni | lon_sign;
|
|
*(buffer + 11U) = b | lon_sign;
|
|
|
|
int long_min = ((longitude - (lon_grad * 1000)) * 6) / 100;
|
|
|
|
if (long_min >= 0 && long_min <= 9)
|
|
b = long_min + 0x58U;
|
|
else
|
|
b=(long_min - 10U) + 0x26;
|
|
|
|
*(buffer + 12U) = b;
|
|
|
|
int long_min_frac = ((longitude - (lon_grad * 1000)) * 6) - (long_min * 100);
|
|
*(buffer + 13U) = long_min_frac + 0x1CU;
|
|
|
|
//crc calculation
|
|
int i;
|
|
int crc = 0;
|
|
|
|
for (i = 0;i < 19; i++)
|
|
crc += *(buffer + i);
|
|
|
|
crc &= 0x00FF;
|
|
*(buffer + 19U) = crc;
|
|
}
|
|
|
|
bool CAPRSReader::load_call()
|
|
{
|
|
struct timeval timeinfo;
|
|
unsigned long epoch;
|
|
|
|
int longitude = 0;
|
|
int latitude = 0;
|
|
|
|
unsigned char buffer[10000];
|
|
int nDataLength;
|
|
std::string website_HTML;
|
|
|
|
// get information
|
|
// LogMessage("Searching %s", callsign.c_str());
|
|
// website url
|
|
std::string url = "/api/get?name=" + m_cs + "-Y," + m_cs + "-7," + m_cs + "-8," + m_cs + "-9,";
|
|
url = url + m_cs + "-14," + m_cs + "&what=loc&apikey=" + m_ApiKey + "&format=json";
|
|
//HTTP GET
|
|
std::string get_http = "GET " + url + " HTTP/1.1\r\nHost: api.aprs.fi\r\nUser-Agent: YSF2DMR/0.12\r\n\r\n";
|
|
CTCPSocket sockfd("api.aprs.fi", 80);
|
|
|
|
bool ret = sockfd.open();
|
|
if (!ret){
|
|
LogMessage("Could not connect to api.aprs.fi");
|
|
return false;
|
|
}
|
|
|
|
// send GET / HTTP
|
|
sockfd.write((const unsigned char*)get_http.c_str(), strlen(get_http.c_str()));
|
|
|
|
// recieve html
|
|
while ((nDataLength = sockfd.read(buffer, 10000, APRS_TIMEOUT)) > 0){
|
|
int i = 0;
|
|
char tmp_str[20];
|
|
for (i = 0; i < nDataLength; i++) {
|
|
if (i > 5 && buffer[i - 4] == '\"' && buffer[i - 3] == 'l' && buffer[i - 2] == 'a' && buffer[i - 1] == 't' && buffer[i] == '\"'){
|
|
::memcpy(tmp_str, buffer + i + 3, 8U);
|
|
tmp_str[8] = 0;
|
|
//LogMessage("Latitude: %s", tmp_str);
|
|
latitude = (int)(atof(tmp_str) * 1000);
|
|
m_lat_table[m_cs] = latitude;
|
|
}
|
|
if (i > 5 && buffer[i - 4] == '\"' && buffer[i - 3] == 'l' && buffer[i - 2] == 'n' && buffer[i - 1] == 'g' && buffer[i] == '\"'){
|
|
::memcpy(tmp_str,buffer + i + 3, 8U);
|
|
tmp_str[8] = 0;
|
|
//LogMessage("Longitude: %s", tmp_str);
|
|
longitude = (int)(atof(tmp_str) * 1000);
|
|
m_lon_table[m_cs] = longitude;
|
|
}
|
|
|
|
if ((latitude != 0) && (longitude != 0))
|
|
break;
|
|
}
|
|
if ((latitude != 0) && (longitude != 0))
|
|
break;
|
|
}
|
|
|
|
sockfd.close();
|
|
|
|
gettimeofday(&timeinfo, 0);
|
|
epoch = timeinfo.tv_sec;
|
|
m_time_table[m_cs] = epoch;
|
|
|
|
if (latitude == 0 || longitude == 0) {
|
|
m_lat_table[m_cs] = 0;
|
|
m_lon_table[m_cs] = 0;
|
|
LogMessage("GPS Position of %s not found", m_cs.c_str());
|
|
return false;
|
|
}
|
|
else {
|
|
LogMessage("GPS Position of %s Lat: %0.3f, Lon: %0.3f", m_cs.c_str(), (float)latitude / 1000.0, (float)longitude / 1000.0);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool CAPRSReader::findCall(std::string cs, int *latitude, int *longitude)
|
|
{
|
|
bool not_found = false;
|
|
struct timeval timeinfo;
|
|
unsigned int epoch, tempo;
|
|
|
|
try {
|
|
*latitude = m_lat_table.at(cs);
|
|
} catch (...) {
|
|
not_found = true;
|
|
}
|
|
|
|
try {
|
|
*longitude = m_lon_table.at(cs);
|
|
} catch (...) {
|
|
not_found = true;
|
|
}
|
|
|
|
if (m_new_callsign) {
|
|
if (not_found)
|
|
return false;
|
|
else if ((*latitude != 0) && (*longitude != 0))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
if (not_found) {
|
|
m_new_callsign = true;
|
|
m_cs = cs;
|
|
return false;
|
|
}
|
|
else {
|
|
gettimeofday(&timeinfo, 0);
|
|
epoch = timeinfo.tv_sec;
|
|
tempo = m_time_table.at(cs);
|
|
|
|
if (epoch > (tempo + m_refres_time)) {
|
|
//LogMessage("Location expired");
|
|
m_new_callsign = true;
|
|
m_cs = cs;
|
|
}
|
|
|
|
if ((*latitude != 0) && (*longitude != 0))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
}
|