2022-09-04 10:19:06 +00:00
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <stdio.h> // Standard input/output definitions
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#include <string.h> // String function definitions
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#include <unistd.h> // UNIX standard function definitions
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#include <fcntl.h> // File control definitions
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#include <errno.h> // Error number definitions
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#include <termios.h> // POSIX terminal control definitions
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#include <stdint.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <dirent.h>
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#include <math.h>
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#include <pthread.h>
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#include <curl/curl.h>
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#include <wiringPi.h>
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#include "global.h"
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#include "gateway.h"
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#include "sondehub.h"
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struct TPayload SondehubPayloads[2];
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void SetSondehubSentence(int Channel, char *tmp)
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{
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sscanf(tmp + 2, "%31[^,],%u,%8[^,],%lf,%lf,%d",
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SondehubPayloads[Channel].Payload,
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&SondehubPayloads[Channel].Counter,
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SondehubPayloads[Channel].Time,
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&SondehubPayloads[Channel].Latitude,
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&SondehubPayloads[Channel].Longitude,
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&SondehubPayloads[Channel].Altitude);
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// LogMessage("Sondehub: %s,%d,%s,%.5lf,%.5lf,%d\n",
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// SondehubPayloads[Channel].Payload,
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// SondehubPayloads[Channel].Counter,
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// SondehubPayloads[Channel].Time,
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// SondehubPayloads[Channel].Latitude,
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// SondehubPayloads[Channel].Longitude,
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// SondehubPayloads[Channel].Altitude);
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2022-09-05 15:28:31 +00:00
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SondehubPayloads[Channel].InUse = (SondehubPayloads[Channel].Latitude != 0) && (SondehubPayloads[Channel].Longitude != 0);
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2022-09-04 10:19:06 +00:00
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}
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size_t sondehub_write_data( void *buffer, size_t size, size_t nmemb, void *userp )
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{
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// LogMessage("%s\n", (char *)buffer);
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return size * nmemb;
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}
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int UploadJSONToServer(char *url, char *json)
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{
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CURL *curl;
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CURLcode res;
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char curl_error[CURL_ERROR_SIZE];
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/* get a curl handle */
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curl = curl_easy_init( );
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if ( curl )
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{
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bool result;
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struct curl_slist *headers = NULL;
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int retries;
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long int http_resp;
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// So that the response to the curl PUT doesn't mess up my finely crafted display!
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curl_easy_setopt( curl, CURLOPT_WRITEFUNCTION, sondehub_write_data );
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// Set the timeout
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curl_easy_setopt( curl, CURLOPT_TIMEOUT, 15 );
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// RJH capture http errors and report
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// curl_easy_setopt( curl, CURLOPT_FAILONERROR, 1 );
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curl_easy_setopt( curl, CURLOPT_ERRORBUFFER, curl_error );
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// Avoid curl library bug that happens if above timeout occurs (sigh)
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curl_easy_setopt( curl, CURLOPT_NOSIGNAL, 1 );
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// Set the headers
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headers = NULL;
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headers = curl_slist_append(headers, "Accept: application/json");
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headers = curl_slist_append(headers, "Content-Type: application/json");
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headers = curl_slist_append(headers, "charsets: utf-8" );
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// PUT https://api.v2.sondehub.org/amateur/telemetry with content-type application/json
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curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
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curl_easy_setopt(curl, CURLOPT_URL, url);
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curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
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curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json);
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retries = 0;
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do
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{
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// Perform the request, res will get the return code
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res = curl_easy_perform( curl );
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// Check for errors
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if ( res == CURLE_OK )
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{
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curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_resp);
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if (http_resp == 200)
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{
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// LogMessage("Saved OK to sondehub\n");
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// Everything performing nominally (even if we didn't successfully insert this time)
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result = true;
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}
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else
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{
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LogMessage("Unexpected HTTP response %ld for URL '%s'\n", http_resp, url);
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result = false;
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}
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}
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else
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{
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http_resp = 0;
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LogMessage("Failed for URL '%s'\n", url);
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LogMessage("curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
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LogMessage("error: %s\n", curl_error);
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// Likely a network error, so return false to requeue
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result = false;
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}
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} while ((!result) && (++retries < 5));
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// always cleanup
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curl_slist_free_all( headers );
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curl_easy_cleanup( curl );
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return result;
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}
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else
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{
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/* CURL error, return false so we requeue */
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return false;
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}
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}
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int UploadSondehubPosition(int Channel)
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{
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char url[200];
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char json[1000], now[32], doc_time[32];
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time_t rawtime;
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struct tm *tm, *doc_tm;
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// Get formatted timestamp for now
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time( &rawtime );
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tm = gmtime( &rawtime );
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strftime( now, sizeof( now ), "%Y-%0m-%0dT%H:%M:%SZ", tm );
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// Get formatted timestamp for doc timestamp
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doc_tm = gmtime( &rawtime );
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strftime(doc_time, sizeof( doc_time ), "%Y-%0m-%0dT%H:%M:%SZ", doc_tm);
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// Create json as required by sondehub-amateur
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sprintf(json, "[{\"software_name\": \"LoRa Gateway\"," // Fixed software name
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"\"software_version\": \"%s\"," // Version
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"\"uploader_callsign\": \"%s\"," // User callsign
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"\"time_received\": \"%s\"," // UTC
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"\"payload_callsign\": \"%s\"," // Payload callsign
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"\"datetime\":\"%s\"," // UTC from payload
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"\"lat\": %.5lf," // Latitude
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"\"lon\": %.5lf," // Longitude
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"\"alt\": %.d," // Altitude
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"\"frequency\": %.4lf," // Frequency
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"\"modulation\": \"LoRa\"," // Modulation
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// DoubleToString('snr', SNR, HasSNR) +
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// DoubleToString('rssi', PacketRSSI, HasPacketRSSI) +
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"\"uploader_position\": ["
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" %.3lf," // Listener Latitude
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" %.3lf," // Listener Longitude
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" %.0lf" // Listener Altitude
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"],"
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"\"uploader_antenna\": \"%s\""
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"}]",
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Config.Version, Config.Tracker, now,
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SondehubPayloads[Channel].Payload, doc_time,
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SondehubPayloads[Channel].Latitude, SondehubPayloads[Channel].Longitude, SondehubPayloads[Channel].Altitude,
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Config.LoRaDevices[Channel].Frequency + Config.LoRaDevices[Channel].FrequencyOffset,
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Config.latitude, Config.longitude, Config.altitude, Config.antenna);
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// Set the URL that is about to receive our PUT
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strcpy(url, "https://api.v2.sondehub.org/amateur/telemetry");
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return UploadJSONToServer(url, json);
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}
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int UploadListenerToSondehub(void)
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{
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char url[200];
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char json[1000], now[32], doc_time[32];
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time_t rawtime;
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struct tm *tm, *doc_tm;
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// Get formatted timestamp for now
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time( &rawtime );
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tm = gmtime( &rawtime );
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strftime( now, sizeof( now ), "%Y-%0m-%0dT%H:%M:%SZ", tm );
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// Get formatted timestamp for doc timestamp
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doc_tm = gmtime( &rawtime );
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strftime(doc_time, sizeof( doc_time ), "%Y-%0m-%0dT%H:%M:%SZ", doc_tm);
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// Create json as required by sondehub-amateur
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sprintf(json, "{\"software_name\": \"LoRa Gateway\"," // Fixed software name
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"\"software_version\": \"%s\"," // Version
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"\"uploader_callsign\": \"%s\"," // User callsign
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"\"uploader_position\": ["
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" %.3lf," // Listener Latitude
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" %.3lf," // Listener Longitude
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" %.0lf" // Listener Altitude
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"],"
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"\"uploader_radio\": \"%s\","
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"\"uploader_antenna\": \"%s\""
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"}",
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Config.Version, Config.Tracker,
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Config.latitude, Config.longitude, Config.altitude,
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Config.radio, Config.antenna);
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strcpy(url, "https://api.v2.sondehub.org/amateur/listeners");
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return UploadJSONToServer(url, json);
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}
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void *SondehubLoop( void *vars )
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{
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while (1)
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{
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static long ListenerCountdown = 0;
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int Channel;
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for (Channel=0; Channel<=1; Channel++)
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{
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if (SondehubPayloads[Channel].InUse)
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{
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if (UploadSondehubPosition(Channel))
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{
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SondehubPayloads[Channel].InUse = 0;
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}
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}
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}
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if (--ListenerCountdown <= 0)
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{
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if (UploadListenerToSondehub())
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{
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2022-09-05 15:28:31 +00:00
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LogMessage("Uploaded listener info to Sondehub/amateur\n");
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2022-09-04 10:19:06 +00:00
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ListenerCountdown = 216000; // Every 6 hours
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}
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else
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{
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2022-09-05 15:28:31 +00:00
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LogMessage("Failed to upload listener info to Sondehub/amateur\n");
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2022-09-04 10:19:06 +00:00
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ListenerCountdown = 600; // Try again in 1 minute
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}
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}
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usleep(100000);
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}
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}
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