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874 lines
25 KiB
874 lines
25 KiB
/*
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MQTT MODULE
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Copyright (C) 2016-2018 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#if MQTT_SUPPORT
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#include <EEPROM_Rotate.h>
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#include <ESP8266WiFi.h>
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#include <ESP8266mDNS.h>
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#include <ArduinoJson.h>
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#include <vector>
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#include <Ticker.h>
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#if MQTT_USE_ASYNC // Using AsyncMqttClient
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#include <AsyncMqttClient.h>
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AsyncMqttClient _mqtt;
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#else // Using PubSubClient
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#include <PubSubClient.h>
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PubSubClient _mqtt;
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bool _mqtt_connected = false;
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WiFiClient _mqtt_client;
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#if ASYNC_TCP_SSL_ENABLED
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WiFiClientSecure _mqtt_client_secure;
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#endif // ASYNC_TCP_SSL_ENABLED
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#endif // MQTT_USE_ASYNC
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bool _mqtt_enabled = MQTT_ENABLED;
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bool _mqtt_use_json = false;
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unsigned long _mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
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unsigned long _mqtt_last_connection = 0;
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bool _mqtt_connecting = false;
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unsigned char _mqtt_qos = MQTT_QOS;
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bool _mqtt_retain = MQTT_RETAIN;
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unsigned long _mqtt_keepalive = MQTT_KEEPALIVE;
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String _mqtt_topic;
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String _mqtt_topic_json;
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String _mqtt_setter;
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String _mqtt_getter;
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bool _mqtt_forward;
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char *_mqtt_user = 0;
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char *_mqtt_pass = 0;
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char *_mqtt_will;
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char *_mqtt_clientid;
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std::vector<mqtt_callback_f> _mqtt_callbacks;
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typedef struct {
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unsigned char parent = 255;
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char * topic;
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char * message = NULL;
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} mqtt_message_t;
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std::vector<mqtt_message_t> _mqtt_queue;
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Ticker _mqtt_flush_ticker;
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// -----------------------------------------------------------------------------
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// Private
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// -----------------------------------------------------------------------------
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void _mqttConnect() {
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// Do not connect if disabled
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if (!_mqtt_enabled) return;
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// Do not connect if already connected or still trying to connect
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if (_mqtt.connected() || _mqtt_connecting) return;
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// Check reconnect interval
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if (millis() - _mqtt_last_connection < _mqtt_reconnect_delay) return;
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_mqtt_connecting = true;
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// Increase the reconnect delay
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_mqtt_reconnect_delay += MQTT_RECONNECT_DELAY_STEP;
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if (_mqtt_reconnect_delay > MQTT_RECONNECT_DELAY_MAX) {
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_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MAX;
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}
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String h = getSetting("mqttServer", MQTT_SERVER);
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#if MDNS_CLIENT_SUPPORT
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h = mdnsResolve(h);
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#endif
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char * host = strdup(h.c_str());
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unsigned int port = getSetting("mqttPort", MQTT_PORT).toInt();
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if (_mqtt_user) free(_mqtt_user);
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if (_mqtt_pass) free(_mqtt_pass);
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if (_mqtt_will) free(_mqtt_will);
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if (_mqtt_clientid) free(_mqtt_clientid);
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String user = getSetting("mqttUser", MQTT_USER);
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_mqttPlaceholders(&user);
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_mqtt_user = strdup(user.c_str());
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_mqtt_pass = strdup(getSetting("mqttPassword", MQTT_PASS).c_str());
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_mqtt_will = strdup(mqttTopic(MQTT_TOPIC_STATUS, false).c_str());
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String clientid = getSetting("mqttClientID", getIdentifier());
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_mqttPlaceholders(&clientid);
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_mqtt_clientid = strdup(clientid.c_str());
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DEBUG_MSG_P(PSTR("[MQTT] Connecting to broker at %s:%d\n"), host, port);
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#if MQTT_USE_ASYNC
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_mqtt.setServer(host, port);
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_mqtt.setClientId(_mqtt_clientid);
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_mqtt.setKeepAlive(_mqtt_keepalive);
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_mqtt.setCleanSession(false);
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_mqtt.setWill(_mqtt_will, _mqtt_qos, _mqtt_retain, "0");
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if ((strlen(_mqtt_user) > 0) && (strlen(_mqtt_pass) > 0)) {
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DEBUG_MSG_P(PSTR("[MQTT] Connecting as user %s\n"), _mqtt_user);
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_mqtt.setCredentials(_mqtt_user, _mqtt_pass);
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}
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#if ASYNC_TCP_SSL_ENABLED
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bool secure = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
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_mqtt.setSecure(secure);
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if (secure) {
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DEBUG_MSG_P(PSTR("[MQTT] Using SSL\n"));
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unsigned char fp[20] = {0};
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if (sslFingerPrintArray(getSetting("mqttFP", MQTT_SSL_FINGERPRINT).c_str(), fp)) {
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_mqtt.addServerFingerprint(fp);
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} else {
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DEBUG_MSG_P(PSTR("[MQTT] Wrong fingerprint\n"));
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}
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}
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#endif // ASYNC_TCP_SSL_ENABLED
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DEBUG_MSG_P(PSTR("[MQTT] Client ID: %s\n"), _mqtt_clientid);
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DEBUG_MSG_P(PSTR("[MQTT] QoS: %d\n"), _mqtt_qos);
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DEBUG_MSG_P(PSTR("[MQTT] Retain flag: %d\n"), _mqtt_retain ? 1 : 0);
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DEBUG_MSG_P(PSTR("[MQTT] Keepalive time: %ds\n"), _mqtt_keepalive);
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DEBUG_MSG_P(PSTR("[MQTT] Will topic: %s\n"), _mqtt_will);
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_mqtt.connect();
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#else // not MQTT_USE_ASYNC
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bool response = true;
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#if ASYNC_TCP_SSL_ENABLED
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bool secure = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
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if (secure) {
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DEBUG_MSG_P(PSTR("[MQTT] Using SSL\n"));
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if (_mqtt_client_secure.connect(host, port)) {
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char fp[60] = {0};
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if (sslFingerPrintChar(getSetting("mqttFP", MQTT_SSL_FINGERPRINT).c_str(), fp)) {
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if (_mqtt_client_secure.verify(fp, host)) {
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_mqtt.setClient(_mqtt_client_secure);
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} else {
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DEBUG_MSG_P(PSTR("[MQTT] Invalid fingerprint\n"));
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response = false;
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}
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_mqtt_client_secure.stop();
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yield();
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} else {
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DEBUG_MSG_P(PSTR("[MQTT] Wrong fingerprint\n"));
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response = false;
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}
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} else {
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DEBUG_MSG_P(PSTR("[MQTT] Client connection failed\n"));
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response = false;
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}
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} else {
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_mqtt.setClient(_mqtt_client);
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}
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#else // not ASYNC_TCP_SSL_ENABLED
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_mqtt.setClient(_mqtt_client);
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#endif // ASYNC_TCP_SSL_ENABLED
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if (response) {
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_mqtt.setServer(host, port);
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if ((strlen(_mqtt_user) > 0) && (strlen(_mqtt_pass) > 0)) {
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DEBUG_MSG_P(PSTR("[MQTT] Connecting as user %s\n"), _mqtt_user);
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response = _mqtt.connect(_mqtt_clientid, _mqtt_user, _mqtt_pass, _mqtt_will, _mqtt_qos, _mqtt_retain, "0");
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} else {
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response = _mqtt.connect(_mqtt_clientid, _mqtt_will, _mqtt_qos, _mqtt_retain, "0");
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}
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DEBUG_MSG_P(PSTR("[MQTT] Client ID: %s\n"), _mqtt_clientid);
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DEBUG_MSG_P(PSTR("[MQTT] QoS: %d\n"), _mqtt_qos);
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DEBUG_MSG_P(PSTR("[MQTT] Retain flag: %d\n"), _mqtt_retain ? 1 : 0);
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DEBUG_MSG_P(PSTR("[MQTT] Keepalive time: %ds\n"), _mqtt_keepalive);
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DEBUG_MSG_P(PSTR("[MQTT] Will topic: %s\n"), _mqtt_will);
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}
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if (response) {
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_mqttOnConnect();
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} else {
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DEBUG_MSG_P(PSTR("[MQTT] Connection failed\n"));
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}
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#endif // MQTT_USE_ASYNC
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free(host);
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}
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void _mqttPlaceholders(String *text) {
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text->replace("{hostname}", getSetting("hostname"));
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text->replace("{magnitude}", "#");
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String mac = WiFi.macAddress();
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mac.replace(":", "");
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text->replace("{mac}", mac);
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}
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void _mqttConfigure() {
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// Get base topic
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_mqtt_topic = getSetting("mqttTopic", MQTT_TOPIC);
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if (_mqtt_topic.endsWith("/")) _mqtt_topic.remove(_mqtt_topic.length()-1);
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// Placeholders
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_mqttPlaceholders(&_mqtt_topic);
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if (_mqtt_topic.indexOf("#") == -1) _mqtt_topic = _mqtt_topic + "/#";
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// Getters and setters
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_mqtt_setter = getSetting("mqttSetter", MQTT_SETTER);
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_mqtt_getter = getSetting("mqttGetter", MQTT_GETTER);
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_mqtt_forward = !_mqtt_getter.equals(_mqtt_setter);
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// MQTT options
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_mqtt_qos = getSetting("mqttQoS", MQTT_QOS).toInt();
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_mqtt_retain = getSetting("mqttRetain", MQTT_RETAIN).toInt() == 1;
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_mqtt_keepalive = getSetting("mqttKeep", MQTT_KEEPALIVE).toInt();
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if (getSetting("mqttClientID").length() == 0) delSetting("mqttClientID");
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// Enable
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if (getSetting("mqttServer", MQTT_SERVER).length() == 0) {
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mqttEnabled(false);
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} else {
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_mqtt_enabled = getSetting("mqttEnabled", MQTT_ENABLED).toInt() == 1;
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}
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_mqtt_use_json = (getSetting("mqttUseJson", MQTT_USE_JSON).toInt() == 1);
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mqttQueueTopic(MQTT_TOPIC_JSON);
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_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
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}
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void _mqttBackwards() {
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String mqttTopic = getSetting("mqttTopic", MQTT_TOPIC);
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if (mqttTopic.indexOf("{identifier}") > 0) {
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mqttTopic.replace("{identifier}", "{hostname}");
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setSetting("mqttTopic", mqttTopic);
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}
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}
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unsigned long _mqttNextMessageId() {
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static unsigned long id = 0;
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// just reboot, get last count from EEPROM
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if (id == 0) {
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// read id from EEPROM and shift it
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id = EEPROMr.read(EEPROM_MESSAGE_ID);
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if (id == 0xFF) {
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// There was nothing in EEPROM,
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// next message is first message
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id = 0;
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} else {
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id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 1);
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id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 2);
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id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 3);
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// Calculate next block and start from there
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id = MQTT_MESSAGE_ID_SHIFT * (1 + (id / MQTT_MESSAGE_ID_SHIFT));
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}
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}
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// Save to EEPROM every MQTT_MESSAGE_ID_SHIFT
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if (id % MQTT_MESSAGE_ID_SHIFT == 0) {
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EEPROMr.write(EEPROM_MESSAGE_ID + 0, (id >> 24) & 0xFF);
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EEPROMr.write(EEPROM_MESSAGE_ID + 1, (id >> 16) & 0xFF);
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EEPROMr.write(EEPROM_MESSAGE_ID + 2, (id >> 8) & 0xFF);
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EEPROMr.write(EEPROM_MESSAGE_ID + 3, (id >> 0) & 0xFF);
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eepromCommit();
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}
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id++;
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return id;
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}
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// -----------------------------------------------------------------------------
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// WEB
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// -----------------------------------------------------------------------------
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#if WEB_SUPPORT
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bool _mqttWebSocketOnReceive(const char * key, JsonVariant& value) {
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return (strncmp(key, "mqtt", 3) == 0);
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}
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void _mqttWebSocketOnSend(JsonObject& root) {
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root["mqttVisible"] = 1;
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root["mqttStatus"] = mqttConnected();
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root["mqttEnabled"] = mqttEnabled();
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root["mqttServer"] = getSetting("mqttServer", MQTT_SERVER);
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root["mqttPort"] = getSetting("mqttPort", MQTT_PORT);
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root["mqttUser"] = getSetting("mqttUser", MQTT_USER);
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root["mqttClientID"] = getSetting("mqttClientID");
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root["mqttPassword"] = getSetting("mqttPassword", MQTT_PASS);
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root["mqttKeep"] = _mqtt_keepalive;
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root["mqttRetain"] = _mqtt_retain;
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root["mqttQoS"] = _mqtt_qos;
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#if ASYNC_TCP_SSL_ENABLED
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root["mqttsslVisible"] = 1;
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root["mqttUseSSL"] = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
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root["mqttFP"] = getSetting("mqttFP", MQTT_SSL_FINGERPRINT);
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#endif
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root["mqttTopic"] = getSetting("mqttTopic", MQTT_TOPIC);
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root["mqttUseJson"] = getSetting("mqttUseJson", MQTT_USE_JSON).toInt() == 1;
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}
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#endif
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// -----------------------------------------------------------------------------
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// SETTINGS
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// -----------------------------------------------------------------------------
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#if TERMINAL_SUPPORT
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void _mqttInitCommands() {
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terminalRegisterCommand(F("MQTT.RESET"), [](Embedis* e) {
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_mqttConfigure();
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mqttDisconnect();
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terminalOK();
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});
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}
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#endif // TERMINAL_SUPPORT
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// -----------------------------------------------------------------------------
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// MQTT Callbacks
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// -----------------------------------------------------------------------------
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void _mqttCallback(unsigned int type, const char * topic, const char * payload) {
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if (type == MQTT_CONNECT_EVENT) {
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// Subscribe to internal action topics
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mqttSubscribe(MQTT_TOPIC_ACTION);
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// Flag system to send heartbeat
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systemSendHeartbeat();
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}
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if (type == MQTT_MESSAGE_EVENT) {
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// Match topic
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String t = mqttMagnitude((char *) topic);
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// Actions
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if (t.equals(MQTT_TOPIC_ACTION)) {
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if (strcmp(payload, MQTT_ACTION_RESET) == 0) {
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deferredReset(100, CUSTOM_RESET_MQTT);
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}
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}
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}
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}
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void _mqttOnConnect() {
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DEBUG_MSG_P(PSTR("[MQTT] Connected!\n"));
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_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
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_mqtt_last_connection = millis();
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// Clean subscriptions
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mqttUnsubscribeRaw("#");
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// Send connect event to subscribers
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for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
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(_mqtt_callbacks[i])(MQTT_CONNECT_EVENT, NULL, NULL);
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}
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}
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void _mqttOnDisconnect() {
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// Reset reconnection delay
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_mqtt_last_connection = millis();
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_mqtt_connecting = false;
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DEBUG_MSG_P(PSTR("[MQTT] Disconnected!\n"));
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// Send disconnect event to subscribers
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for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
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(_mqtt_callbacks[i])(MQTT_DISCONNECT_EVENT, NULL, NULL);
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}
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}
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void _mqttOnMessage(char* topic, char* payload, unsigned int len) {
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if (len == 0) return;
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char message[len + 1];
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strlcpy(message, (char *) payload, len + 1);
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#if MQTT_SKIP_RETAINED
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if (millis() - _mqtt_last_connection < MQTT_SKIP_TIME) {
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DEBUG_MSG_P(PSTR("[MQTT] Received %s => %s - SKIPPED\n"), topic, message);
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return;
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}
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#endif
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DEBUG_MSG_P(PSTR("[MQTT] Received %s => %s\n"), topic, message);
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// Send message event to subscribers
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for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
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(_mqtt_callbacks[i])(MQTT_MESSAGE_EVENT, topic, message);
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}
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}
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// -----------------------------------------------------------------------------
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// Public API
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// -----------------------------------------------------------------------------
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/**
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Returns the magnitude part of a topic
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@param topic the full MQTT topic
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@return String object with the magnitude part.
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*/
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String mqttMagnitude(char * topic) {
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String pattern = _mqtt_topic + _mqtt_setter;
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int position = pattern.indexOf("#");
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if (position == -1) return String();
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String start = pattern.substring(0, position);
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String end = pattern.substring(position + 1);
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String magnitude = String(topic);
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if (magnitude.startsWith(start) && magnitude.endsWith(end)) {
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magnitude.replace(start, "");
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magnitude.replace(end, "");
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} else {
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magnitude = String();
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}
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return magnitude;
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}
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/**
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Returns a full MQTT topic from the magnitude
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@param magnitude the magnitude part of the topic.
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@param is_set whether to build a command topic (true)
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or a state topic (false).
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@return String full MQTT topic.
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*/
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String mqttTopic(const char * magnitude, bool is_set) {
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String output = _mqtt_topic;
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output.replace("#", magnitude);
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output += is_set ? _mqtt_setter : _mqtt_getter;
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return output;
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}
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/**
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Returns a full MQTT topic from the magnitude
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@param magnitude the magnitude part of the topic.
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@param index index of the magnitude when more than one such magnitudes.
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@param is_set whether to build a command topic (true)
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or a state topic (false).
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@return String full MQTT topic.
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*/
|
|
String mqttTopic(const char * magnitude, unsigned int index, bool is_set) {
|
|
char buffer[strlen(magnitude)+5];
|
|
snprintf_P(buffer, sizeof(buffer), PSTR("%s/%d"), magnitude, index);
|
|
return mqttTopic(buffer, is_set);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void mqttSendRaw(const char * topic, const char * message, bool retain) {
|
|
|
|
if (_mqtt.connected()) {
|
|
#if MQTT_USE_ASYNC
|
|
unsigned int packetId = _mqtt.publish(topic, _mqtt_qos, retain, message);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Sending %s => %s (PID %d)\n"), topic, message, packetId);
|
|
#else
|
|
_mqtt.publish(topic, message, retain);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Sending %s => %s\n"), topic, message);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
void mqttSendRaw(const char * topic, const char * message) {
|
|
mqttSendRaw (topic, message, _mqtt_retain);
|
|
}
|
|
|
|
void mqttSend(const char * topic, const char * message, bool force, bool retain) {
|
|
|
|
bool useJson = force ? false : _mqtt_use_json;
|
|
|
|
// Equeue message
|
|
if (useJson) {
|
|
|
|
// Set default queue topic
|
|
mqttQueueTopic(MQTT_TOPIC_JSON);
|
|
|
|
// Enqueue new message
|
|
mqttEnqueue(topic, message);
|
|
|
|
// Reset flush timer
|
|
_mqtt_flush_ticker.once_ms(MQTT_USE_JSON_DELAY, mqttFlush);
|
|
|
|
// Send it right away
|
|
} else {
|
|
mqttSendRaw(mqttTopic(topic, false).c_str(), message, retain);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void mqttSend(const char * topic, const char * message, bool force) {
|
|
mqttSend(topic, message, force, _mqtt_retain);
|
|
}
|
|
|
|
void mqttSend(const char * topic, const char * message) {
|
|
mqttSend(topic, message, false);
|
|
}
|
|
|
|
void mqttSend(const char * topic, unsigned int index, const char * message, bool force, bool retain) {
|
|
char buffer[strlen(topic)+5];
|
|
snprintf_P(buffer, sizeof(buffer), PSTR("%s/%d"), topic, index);
|
|
mqttSend(buffer, message, force, retain);
|
|
}
|
|
|
|
void mqttSend(const char * topic, unsigned int index, const char * message, bool force) {
|
|
mqttSend(topic, index, message, force, _mqtt_retain);
|
|
}
|
|
|
|
void mqttSend(const char * topic, unsigned int index, const char * message) {
|
|
mqttSend(topic, index, message, false);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
unsigned char _mqttBuildTree(JsonObject& root, char parent) {
|
|
|
|
unsigned char count = 0;
|
|
|
|
// Add enqueued messages
|
|
for (unsigned char i=0; i<_mqtt_queue.size(); i++) {
|
|
mqtt_message_t element = _mqtt_queue[i];
|
|
if (element.parent == parent) {
|
|
++count;
|
|
JsonObject& elements = root.createNestedObject(element.topic);
|
|
unsigned char num = _mqttBuildTree(elements, i);
|
|
if (0 == num) {
|
|
if (isNumber(element.message)) {
|
|
double value = atof(element.message);
|
|
if (value == int(value)) {
|
|
root.set(element.topic, int(value));
|
|
} else {
|
|
root.set(element.topic, value);
|
|
}
|
|
} else {
|
|
root.set(element.topic, element.message);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
void mqttFlush() {
|
|
|
|
if (!_mqtt.connected()) return;
|
|
if (_mqtt_queue.size() == 0) return;
|
|
|
|
// Build tree recursively
|
|
DynamicJsonBuffer jsonBuffer;
|
|
JsonObject& root = jsonBuffer.createObject();
|
|
_mqttBuildTree(root, 255);
|
|
|
|
// Add extra propeties
|
|
#if NTP_SUPPORT && MQTT_ENQUEUE_DATETIME
|
|
if (ntpSynced()) root[MQTT_TOPIC_TIME] = ntpDateTime();
|
|
#endif
|
|
#if MQTT_ENQUEUE_MAC
|
|
root[MQTT_TOPIC_MAC] = WiFi.macAddress();
|
|
#endif
|
|
#if MQTT_ENQUEUE_HOSTNAME
|
|
root[MQTT_TOPIC_HOSTNAME] = getSetting("hostname");
|
|
#endif
|
|
#if MQTT_ENQUEUE_IP
|
|
root[MQTT_TOPIC_IP] = getIP();
|
|
#endif
|
|
#if MQTT_ENQUEUE_MESSAGE_ID
|
|
root[MQTT_TOPIC_MESSAGE_ID] = _mqttNextMessageId();
|
|
#endif
|
|
|
|
// Send
|
|
String output;
|
|
root.printTo(output);
|
|
jsonBuffer.clear();
|
|
|
|
mqttSendRaw(_mqtt_topic_json.c_str(), output.c_str(), false);
|
|
|
|
// Clear queue
|
|
for (unsigned char i = 0; i < _mqtt_queue.size(); i++) {
|
|
mqtt_message_t element = _mqtt_queue[i];
|
|
free(element.topic);
|
|
if (element.message) {
|
|
free(element.message);
|
|
}
|
|
}
|
|
_mqtt_queue.clear();
|
|
|
|
}
|
|
|
|
void mqttQueueTopic(const char * topic) {
|
|
String t = mqttTopic(topic, false);
|
|
if (!t.equals(_mqtt_topic_json)) {
|
|
mqttFlush();
|
|
_mqtt_topic_json = t;
|
|
}
|
|
}
|
|
|
|
int8_t mqttEnqueue(const char * topic, const char * message, unsigned char parent) {
|
|
|
|
// Queue is not meant to send message "offline"
|
|
// We must prevent the queue does not get full while offline
|
|
if (!_mqtt.connected()) return -1;
|
|
|
|
// Force flusing the queue if the MQTT_QUEUE_MAX_SIZE has been reached
|
|
if (_mqtt_queue.size() >= MQTT_QUEUE_MAX_SIZE) mqttFlush();
|
|
|
|
int8_t index = _mqtt_queue.size();
|
|
|
|
// Enqueue new message
|
|
mqtt_message_t element;
|
|
element.parent = parent;
|
|
element.topic = strdup(topic);
|
|
if (NULL != message) {
|
|
element.message = strdup(message);
|
|
}
|
|
_mqtt_queue.push_back(element);
|
|
|
|
return index;
|
|
|
|
}
|
|
|
|
int8_t mqttEnqueue(const char * topic, const char * message) {
|
|
return mqttEnqueue(topic, message, 255);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void mqttSubscribeRaw(const char * topic) {
|
|
if (_mqtt.connected() && (strlen(topic) > 0)) {
|
|
#if MQTT_USE_ASYNC
|
|
unsigned int packetId = _mqtt.subscribe(topic, _mqtt_qos);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Subscribing to %s (PID %d)\n"), topic, packetId);
|
|
#else
|
|
_mqtt.subscribe(topic, _mqtt_qos);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Subscribing to %s\n"), topic);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void mqttSubscribe(const char * topic) {
|
|
mqttSubscribeRaw(mqttTopic(topic, true).c_str());
|
|
}
|
|
|
|
void mqttUnsubscribeRaw(const char * topic) {
|
|
if (_mqtt.connected() && (strlen(topic) > 0)) {
|
|
#if MQTT_USE_ASYNC
|
|
unsigned int packetId = _mqtt.unsubscribe(topic);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Unsubscribing to %s (PID %d)\n"), topic, packetId);
|
|
#else
|
|
_mqtt.unsubscribe(topic);
|
|
DEBUG_MSG_P(PSTR("[MQTT] Unsubscribing to %s\n"), topic);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void mqttUnsubscribe(const char * topic) {
|
|
mqttUnsubscribeRaw(mqttTopic(topic, true).c_str());
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void mqttEnabled(bool status) {
|
|
_mqtt_enabled = status;
|
|
}
|
|
|
|
bool mqttEnabled() {
|
|
return _mqtt_enabled;
|
|
}
|
|
|
|
bool mqttConnected() {
|
|
return _mqtt.connected();
|
|
}
|
|
|
|
void mqttDisconnect() {
|
|
if (_mqtt.connected()) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Disconnecting\n"));
|
|
_mqtt.disconnect();
|
|
}
|
|
}
|
|
|
|
bool mqttForward() {
|
|
return _mqtt_forward;
|
|
}
|
|
|
|
void mqttRegister(mqtt_callback_f callback) {
|
|
_mqtt_callbacks.push_back(callback);
|
|
}
|
|
|
|
void mqttSetBroker(IPAddress ip, unsigned int port) {
|
|
setSetting("mqttServer", ip.toString());
|
|
setSetting("mqttPort", port);
|
|
mqttEnabled(MQTT_AUTOCONNECT);
|
|
}
|
|
|
|
void mqttSetBrokerIfNone(IPAddress ip, unsigned int port) {
|
|
if (getSetting("mqttServer", MQTT_SERVER).length() == 0) mqttSetBroker(ip, port);
|
|
}
|
|
|
|
void mqttReset() {
|
|
_mqttConfigure();
|
|
mqttDisconnect();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Initialization
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void mqttSetup() {
|
|
|
|
_mqttBackwards();
|
|
|
|
DEBUG_MSG_P(PSTR("[MQTT] Async %s, SSL %s, Autoconnect %s\n"),
|
|
MQTT_USE_ASYNC ? "ENABLED" : "DISABLED",
|
|
ASYNC_TCP_SSL_ENABLED ? "ENABLED" : "DISABLED",
|
|
MQTT_AUTOCONNECT ? "ENABLED" : "DISABLED"
|
|
);
|
|
|
|
#if MQTT_USE_ASYNC
|
|
|
|
_mqtt.onConnect([](bool sessionPresent) {
|
|
_mqttOnConnect();
|
|
});
|
|
_mqtt.onDisconnect([](AsyncMqttClientDisconnectReason reason) {
|
|
if (reason == AsyncMqttClientDisconnectReason::TCP_DISCONNECTED) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] TCP Disconnected\n"));
|
|
}
|
|
if (reason == AsyncMqttClientDisconnectReason::MQTT_IDENTIFIER_REJECTED) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Identifier Rejected\n"));
|
|
}
|
|
if (reason == AsyncMqttClientDisconnectReason::MQTT_SERVER_UNAVAILABLE) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Server unavailable\n"));
|
|
}
|
|
if (reason == AsyncMqttClientDisconnectReason::MQTT_MALFORMED_CREDENTIALS) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Malformed credentials\n"));
|
|
}
|
|
if (reason == AsyncMqttClientDisconnectReason::MQTT_NOT_AUTHORIZED) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Not authorized\n"));
|
|
}
|
|
#if ASYNC_TCP_SSL_ENABLED
|
|
if (reason == AsyncMqttClientDisconnectReason::TLS_BAD_FINGERPRINT) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Bad fingerprint\n"));
|
|
}
|
|
#endif
|
|
_mqttOnDisconnect();
|
|
});
|
|
_mqtt.onMessage([](char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total) {
|
|
_mqttOnMessage(topic, payload, len);
|
|
});
|
|
_mqtt.onSubscribe([](uint16_t packetId, uint8_t qos) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Subscribe ACK for PID %d\n"), packetId);
|
|
});
|
|
_mqtt.onPublish([](uint16_t packetId) {
|
|
DEBUG_MSG_P(PSTR("[MQTT] Publish ACK for PID %d\n"), packetId);
|
|
});
|
|
|
|
#else // not MQTT_USE_ASYNC
|
|
|
|
_mqtt.setCallback([](char* topic, byte* payload, unsigned int length) {
|
|
_mqttOnMessage(topic, (char *) payload, length);
|
|
});
|
|
|
|
#endif // MQTT_USE_ASYNC
|
|
|
|
_mqttConfigure();
|
|
mqttRegister(_mqttCallback);
|
|
|
|
#if WEB_SUPPORT
|
|
wsOnSendRegister(_mqttWebSocketOnSend);
|
|
wsOnReceiveRegister(_mqttWebSocketOnReceive);
|
|
#endif
|
|
|
|
#if TERMINAL_SUPPORT
|
|
_mqttInitCommands();
|
|
#endif
|
|
|
|
// Main callbacks
|
|
espurnaRegisterLoop(mqttLoop);
|
|
espurnaRegisterReload(_mqttConfigure);
|
|
|
|
}
|
|
|
|
void mqttLoop() {
|
|
|
|
if (WiFi.status() != WL_CONNECTED) return;
|
|
|
|
#if MQTT_USE_ASYNC
|
|
|
|
_mqttConnect();
|
|
|
|
#else // not MQTT_USE_ASYNC
|
|
|
|
if (_mqtt.connected()) {
|
|
|
|
_mqtt.loop();
|
|
|
|
} else {
|
|
|
|
if (_mqtt_connected) {
|
|
_mqttOnDisconnect();
|
|
_mqtt_connected = false;
|
|
}
|
|
|
|
_mqttConnect();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
#endif // MQTT_SUPPORT
|