247 lines
7.4 KiB
C++
247 lines
7.4 KiB
C++
//
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//
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//
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#include "../cfg/BTCConfig.h"
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#if USE_MQTT == 1
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#include <Arduino.h>
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#include "ABMqtt.h"
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#include "../../lib/async-mqtt-client/src/AsyncMqttClient.h"
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#include "BTCWifi.h"
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#include "BTCWebServer.h"
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#include "../Utility/DebugPort.h"
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#include "../Utility/NVStorage.h"
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#define USE_RTOS_MQTTTIMER
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//#define USE_LOCAL_MQTTSTRINGS
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//IPAddress testMQTTserver(5, 196, 95, 208); // test.mosquito.org
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//IPAddress testMQTTserver(18, 194, 98, 249); // broker.hivemq.com
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AsyncMqttClient MQTTclient;
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char topicnameJSONin[128];
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#ifdef USE_LOCAL_MQTTSTRINGS
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char mqttHost[128];
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char mqttUser[32];
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char mqttPass[32];
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#endif
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#ifdef USE_RTOS_MQTTTIMER
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TimerHandle_t mqttReconnectTimer = NULL;
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#else
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unsigned long mqttReconnect = 0;
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#endif
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void connectToMqtt() {
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#ifdef USE_RTOS_MQTTTIMER
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xTimerStop(mqttReconnectTimer, 0);
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#else
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mqttReconnect = 0;
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#endif
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if(!MQTTclient.connected()) {
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DebugPort.println("MQTT: Connecting...");
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if(NVstore.getMQTTinfo().enabled) {
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MQTTclient.connect();
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}
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}
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}
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void onMqttConnect(bool sessionPresent)
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{
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#ifdef USE_RTOS_MQTTTIMER
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xTimerStop(mqttReconnectTimer, 0);
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#else
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mqttReconnect = 0;
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#endif
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DebugPort.println("MQTT: Connected to broker.");
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// DebugPort.printf("Session present: %d\r\n", sessionPresent);
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// create the topicname we use to accept incoming JSON
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DebugPort.printf("MQTT: base topic name \"%s\"\r\n", NVstore.getMQTTinfo().topic);
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sprintf(topicnameJSONin, "%s/JSONin", NVstore.getMQTTinfo().topic);
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// subscribe to that topic
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DebugPort.printf("MQTT: Subscribing to \"%s\"\r\n", topicnameJSONin);
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MQTTclient.subscribe(topicnameJSONin, NVstore.getMQTTinfo().qos);
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// spit out an "I'm here" message
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char lcltopic[128];
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sprintf(lcltopic, "%s/Status", NVstore.getMQTTinfo().topic);
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MQTTclient.publish(lcltopic, NVstore.getMQTTinfo().qos, true, "onMqttConnect");
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#ifdef MQTT_DBG_LOOPBACK
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// testo - loopback
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sprintflcl(topic, "%s/JSONout", NVstore.getMQTTinfo().topic);
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MQTTclient.subscribe(lcltopic, NVstore.getMQTTinfo().qos);
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#endif
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resetJSONmoderator();
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}
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void onMqttMessage(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total)
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{
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// handle message arrived
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DebugPort.printf("MQTT: onMessage %s ", topic);
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#ifdef MQTT_DBG_RAWBYTES
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for(int i=0; i<len; i++) {
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DebugPort.printf("0x%02X ", payload[i]);
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}
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DebugPort.println();
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#endif
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// string may not neccesarily be null terminated, make sure it is
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char tidyString[1024];
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int maxlen = sizeof(tidyString)-1;
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int lenLimit = len < maxlen ? len : maxlen;
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strncpy(tidyString, (char*)payload, lenLimit);
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tidyString[lenLimit] = 0;
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DebugPort.println(tidyString);
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if(strcmp(topic, topicnameJSONin) == 0) { // check if incoming topic is our JSONin topic
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interpretJsonCommand(tidyString);
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}
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}
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void onMqttDisconnect(AsyncMqttClientDisconnectReason reason) {
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DebugPort.print("MQTT: Disconnected, reason: ");
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// ref: DisconnectReasons.hpp
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switch(reason) {
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case AsyncMqttClientDisconnectReason::TCP_DISCONNECTED: DebugPort.println("TCP disconnected"); break;
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case AsyncMqttClientDisconnectReason::MQTT_UNACCEPTABLE_PROTOCOL_VERSION: DebugPort.println("protocol version"); break;
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case AsyncMqttClientDisconnectReason::MQTT_IDENTIFIER_REJECTED: DebugPort.println("Identifier rejected"); break;
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case AsyncMqttClientDisconnectReason::MQTT_SERVER_UNAVAILABLE: DebugPort.println("Server unavailable"); break;
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case AsyncMqttClientDisconnectReason::MQTT_MALFORMED_CREDENTIALS: DebugPort.println("Malformed credentials"); break;
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case AsyncMqttClientDisconnectReason::MQTT_NOT_AUTHORIZED: DebugPort.println("No authorised"); break;
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case AsyncMqttClientDisconnectReason::ESP8266_NOT_ENOUGH_SPACE: DebugPort.println("Not enough space"); break;
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case AsyncMqttClientDisconnectReason::TLS_BAD_FINGERPRINT: DebugPort.println("Bad TLS fingerprint"); break;
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}
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if (WiFi.isConnected()) {
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if(NVstore.getMQTTinfo().enabled) {
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#ifdef USE_RTOS_MQTTTIMER
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xTimerStart(mqttReconnectTimer, 0);
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#else
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mqttReconnect = millis() + 5000;
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#endif
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}
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}
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}
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void onMqttSubscribe(uint16_t packetId, uint8_t qos) {
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DebugPort.println("MQTT: Subscribe acknowledged.");
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// DebugPort.printf(" packetId: %d\r\n", packetId);
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// DebugPort.printf(" qos: %d\r\n", qos);
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}
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bool mqttInit()
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{
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#ifdef USE_RTOS_MQTTTIMER
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if(mqttReconnectTimer==NULL)
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mqttReconnectTimer = xTimerCreate("mqttTimer", pdMS_TO_TICKS(2000), pdFALSE, (void*)0, reinterpret_cast<TimerCallbackFunction_t>(connectToMqtt));
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#else
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mqttReconnect = 0;
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#endif
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memset(topicnameJSONin, 0, sizeof(topicnameJSONin));
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MQTTclient.disconnect(true);
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long escape = millis() + 10000;
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while(MQTTclient.connected()) {
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long tDelta = millis()-escape;
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if(tDelta > 0) {
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DebugPort.println("MQTT: TIMEOUT waiting for broker disconnect");
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break;
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}
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}
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const sMQTTparams params = NVstore.getMQTTinfo();
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if(params.enabled) {
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#ifdef USE_LOCAL_MQTTSTRINGS
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strncpy(mqttHost, params.host, 127);
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strncpy(mqttUser, params.username, 31);
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strncpy(mqttPass, params.password, 31);
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mqttHost[127] = 0;
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mqttUser[31] = 0;
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mqttPass[31] = 0;
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DebugPort.printf("MQTT: setting broker to %s:%d\r\n", mqttHost, params.port);
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DebugPort.printf("MQTT: %s/%s\r\n", mqttUser, mqttPass);
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MQTTclient.setServer(mqttHost, params.port);
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MQTTclient.setCredentials(mqttUser, mqttPass);
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#else
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// the client only stores a pointer - this must not be a volatile memory location!
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// - NO STACK vars!!!
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DebugPort.printf("MQTT: setting broker to %s:%d\r\n", NVstore.getMQTTinfo().host, NVstore.getMQTTinfo().port);
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MQTTclient.setServer(NVstore.getMQTTinfo().host, NVstore.getMQTTinfo().port);
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DebugPort.printf("MQTT: %s/%s\r\n", NVstore.getMQTTinfo().username, NVstore.getMQTTinfo().password);
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MQTTclient.setCredentials(NVstore.getMQTTinfo().username, NVstore.getMQTTinfo().password);
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#endif
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static bool setCallbacks = false;
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// callbacks should only be added once (vector of callbacks in client!)
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if(!setCallbacks) {
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MQTTclient.onConnect(onMqttConnect);
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MQTTclient.onMessage(onMqttMessage);
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MQTTclient.onDisconnect(onMqttDisconnect);
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MQTTclient.onSubscribe(onMqttSubscribe);
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setCallbacks = true;
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}
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// connection takes pplace via delayed start method
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return true;
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}
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return false;
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}
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bool mqttPublishJSON(const char* str)
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{
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if(MQTTclient.connected()) {
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const sMQTTparams params = NVstore.getMQTTinfo();
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char topic[128];
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sprintf(topic, "%s/JSONout", params.topic);
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MQTTclient.publish(topic, params.qos, false, str);
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return true;
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}
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return false;
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}
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void kickMQTT() {
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if (WiFi.isConnected()) {
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if(NVstore.getMQTTinfo().enabled) {
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#ifdef USE_RTOS_MQTTTIMER
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xTimerStart(mqttReconnectTimer, 0);
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#else
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mqttReconnect = millis() + 5000;
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#endif
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}
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}
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}
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void doMQTT()
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{
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// most MQTT is managed via callbacks!!!
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if(NVstore.getMQTTinfo().enabled) {
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#ifndef USE_RTOS_MQTTTIMER
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if(mqttReconnect) {
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long tDelta = millis() - mqttReconnect;
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if(tDelta > 0) {
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mqttReconnect = 0;
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connectToMqtt();
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}
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}
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#endif
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#ifdef USE_RTOS_MQTTTIMER
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if (!MQTTclient.connected() && WiFi.isConnected() && !xTimerIsTimerActive(mqttReconnectTimer)) {
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xTimerStart(mqttReconnectTimer, 0);
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}
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#else
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if (!MQTTclient.connected() && WiFi.isConnected() && mqttReconnect==0) {
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mqttReconnect = millis() + 5000;
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}
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#endif
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}
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}
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#endif |