Add OTA support via ArduinoOTA

src/fdrs_gateway.h

@@ -72,6 +72,7 @@ void releaseLogBuffer();
 #ifdef USE_WIFI
   #include "fdrs_gateway_wifi.h"
   #include "fdrs_gateway_mqtt.h"
+  #include "fdrs_gateway_ota.h"
 #endif
 #if defined(USE_FS_LOG) || defined(USE_SD_LOG)
   #include "fdrs_gateway_filesystem.h"
@@ -127,6 +128,7 @@ void beginFDRS()
   begin_wifi();
   DBG("Connected.");
   begin_mqtt();
+  begin_OTA();
 #endif
 #ifdef USE_ESPNOW
   begin_espnow();
@@ -178,6 +180,7 @@ void loopFDRS()
 #endif
 #ifdef USE_WIFI
   handleMQTT();
+  handleOTA();
 #endif
   if (newData != event_clear)
   {

src/fdrs_gateway_ota.h

@@ -0,0 +1,52 @@
+#if defined(ESP32) || defined(ESP8266)
+#include <ArduinoOTA.h>
+
+void begin_OTA() {
+    // Port defaults to 3232
+    // ArduinoOTA.setPort(3232);
+
+    // Hostname defaults to esp3232-[MAC]
+    //
+    ArduinoOTA.setHostname("FDRSGW");
+
+    // No authentication by default
+    // ArduinoOTA.setPassword("admin");
+
+    // Password can be set with it's md5 value as well
+    // MD5(admin) = 21232f297a57a5a743894a0e4a801fc3
+    // ArduinoOTA.setPasswordHash("21232f297a57a5a743894a0e4a801fc3");
+  ArduinoOTA.onStart([]() {
+      String type;
+      if (ArduinoOTA.getCommand() == U_FLASH) {
+        type = "sketch";
+      }
+      else {  // U_SPIFFS
+        type = "filesystem";
+      }
+
+      // NOTE: if updating SPIFFS this would be the place to unmount SPIFFS using SPIFFS.end()
+      //ESP_LOGI(TAG, "Start updating " + type);
+    });
+    ArduinoOTA.onEnd([]() {
+      DBG("\nEnd");
+    });
+    ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+      DBG("Progress: " + String(progress / (total / 100)) + "%");
+    });
+    ArduinoOTA.onError([](ota_error_t error) {
+      DBG("Error[" + String(error) + "]");
+      if (error == OTA_AUTH_ERROR) { DBG("Auth Failed"); }
+      else if (error == OTA_BEGIN_ERROR) { DBG("Begin Failed"); }
+      else if (error == OTA_CONNECT_ERROR) { DBG("Connect Failed"); }
+      else if (error == OTA_RECEIVE_ERROR) { DBG("Receive Failed"); }
+      else if (error == OTA_END_ERROR) { DBG("End Failed"); }
+    });
+    
+    ArduinoOTA.begin();
+}
+
+void handleOTA() {
+    ArduinoOTA.handle();
+}
+
+#endif // defined(ESP32) || defined (ESP8266)