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/*
MQTT MODULE
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if MQTT_SUPPORT
#include <EEPROM_Rotate.h>
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <ArduinoJson.h>
#include <vector>
#include <Ticker.h>
#if MQTT_USE_ASYNC // Using AsyncMqttClient
#include <AsyncMqttClient.h>
AsyncMqttClient _mqtt;
#else // Using PubSubClient
#include <PubSubClient.h>
PubSubClient _mqtt;
bool _mqtt_connected = false;
WiFiClient _mqtt_client;
#if ASYNC_TCP_SSL_ENABLED
WiFiClientSecure _mqtt_client_secure;
#endif // ASYNC_TCP_SSL_ENABLED
#endif // MQTT_USE_ASYNC
bool _mqtt_enabled = MQTT_ENABLED;
bool _mqtt_use_json = false;
unsigned long _mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
unsigned long _mqtt_last_connection = 0;
bool _mqtt_connecting = false;
unsigned char _mqtt_qos = MQTT_QOS;
bool _mqtt_retain = MQTT_RETAIN;
unsigned long _mqtt_keepalive = MQTT_KEEPALIVE;
String _mqtt_topic;
String _mqtt_topic_json;
String _mqtt_setter;
String _mqtt_getter;
bool _mqtt_forward;
char *_mqtt_user = 0;
char *_mqtt_pass = 0;
char *_mqtt_will;
char *_mqtt_clientid;
std::vector<mqtt_callback_f> _mqtt_callbacks;
typedef struct {
unsigned char parent = 255;
char * topic;
char * message = NULL;
} mqtt_message_t;
std::vector<mqtt_message_t> _mqtt_queue;
Ticker _mqtt_flush_ticker;
// -----------------------------------------------------------------------------
// Private
// -----------------------------------------------------------------------------
void _mqttConnect() {
// Do not connect if disabled
if (!_mqtt_enabled) return;
// Do not connect if already connected or still trying to connect
if (_mqtt.connected() || _mqtt_connecting) return;
// Check reconnect interval
if (millis() - _mqtt_last_connection < _mqtt_reconnect_delay) return;
// Increase the reconnect delay
_mqtt_reconnect_delay += MQTT_RECONNECT_DELAY_STEP;
if (_mqtt_reconnect_delay > MQTT_RECONNECT_DELAY_MAX) {
_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MAX;
}
String h = getSetting("mqttServer", MQTT_SERVER);
#if MDNS_CLIENT_SUPPORT
h = mdnsResolve(h);
#endif
char * host = strdup(h.c_str());
unsigned int port = getSetting("mqttPort", MQTT_PORT).toInt();
if (_mqtt_user) free(_mqtt_user);
if (_mqtt_pass) free(_mqtt_pass);
if (_mqtt_will) free(_mqtt_will);
if (_mqtt_clientid) free(_mqtt_clientid);
String user = getSetting("mqttUser", MQTT_USER);
_mqttPlaceholders(&user);
_mqtt_user = strdup(user.c_str());
_mqtt_pass = strdup(getSetting("mqttPassword", MQTT_PASS).c_str());
_mqtt_will = strdup(mqttTopic(MQTT_TOPIC_STATUS, false).c_str());
String clientid = getSetting("mqttClientID", getIdentifier());
_mqttPlaceholders(&clientid);
_mqtt_clientid = strdup(clientid.c_str());
DEBUG_MSG_P(PSTR("[MQTT] Connecting to broker at %s:%d\n"), host, port);
#if MQTT_USE_ASYNC
_mqtt_connecting = true;
_mqtt.setServer(host, port);
_mqtt.setClientId(_mqtt_clientid);
_mqtt.setKeepAlive(_mqtt_keepalive);
_mqtt.setCleanSession(false);
_mqtt.setWill(_mqtt_will, _mqtt_qos, _mqtt_retain, "0");
if ((strlen(_mqtt_user) > 0) && (strlen(_mqtt_pass) > 0)) {
DEBUG_MSG_P(PSTR("[MQTT] Connecting as user %s\n"), _mqtt_user);
_mqtt.setCredentials(_mqtt_user, _mqtt_pass);
}
#if ASYNC_TCP_SSL_ENABLED
bool secure = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
_mqtt.setSecure(secure);
if (secure) {
DEBUG_MSG_P(PSTR("[MQTT] Using SSL\n"));
unsigned char fp[20] = {0};
if (sslFingerPrintArray(getSetting("mqttFP", MQTT_SSL_FINGERPRINT).c_str(), fp)) {
_mqtt.addServerFingerprint(fp);
} else {
DEBUG_MSG_P(PSTR("[MQTT] Wrong fingerprint\n"));
}
}
#endif // ASYNC_TCP_SSL_ENABLED
DEBUG_MSG_P(PSTR("[MQTT] Client ID: %s\n"), _mqtt_clientid);
DEBUG_MSG_P(PSTR("[MQTT] QoS: %d\n"), _mqtt_qos);
DEBUG_MSG_P(PSTR("[MQTT] Retain flag: %d\n"), _mqtt_retain ? 1 : 0);
DEBUG_MSG_P(PSTR("[MQTT] Keepalive time: %ds\n"), _mqtt_keepalive);
DEBUG_MSG_P(PSTR("[MQTT] Will topic: %s\n"), _mqtt_will);
_mqtt.connect();
#else // not MQTT_USE_ASYNC
bool response = true;
#if ASYNC_TCP_SSL_ENABLED
bool secure = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
if (secure) {
DEBUG_MSG_P(PSTR("[MQTT] Using SSL\n"));
if (_mqtt_client_secure.connect(host, port)) {
char fp[60] = {0};
if (sslFingerPrintChar(getSetting("mqttFP", MQTT_SSL_FINGERPRINT).c_str(), fp)) {
if (_mqtt_client_secure.verify(fp, host)) {
_mqtt.setClient(_mqtt_client_secure);
} else {
DEBUG_MSG_P(PSTR("[MQTT] Invalid fingerprint\n"));
response = false;
}
_mqtt_client_secure.stop();
yield();
} else {
DEBUG_MSG_P(PSTR("[MQTT] Wrong fingerprint\n"));
response = false;
}
} else {
DEBUG_MSG_P(PSTR("[MQTT] Client connection failed\n"));
response = false;
}
} else {
_mqtt.setClient(_mqtt_client);
}
#else // not ASYNC_TCP_SSL_ENABLED
_mqtt.setClient(_mqtt_client);
#endif // ASYNC_TCP_SSL_ENABLED
if (response) {
_mqtt.setServer(host, port);
if ((strlen(_mqtt_user) > 0) && (strlen(_mqtt_pass) > 0)) {
DEBUG_MSG_P(PSTR("[MQTT] Connecting as user %s\n"), _mqtt_user);
response = _mqtt.connect(_mqtt_clientid, _mqtt_user, _mqtt_pass, _mqtt_will, _mqtt_qos, _mqtt_retain, "0");
} else {
response = _mqtt.connect(_mqtt_clientid, _mqtt_will, _mqtt_qos, _mqtt_retain, "0");
}
DEBUG_MSG_P(PSTR("[MQTT] Client ID: %s\n"), _mqtt_clientid);
DEBUG_MSG_P(PSTR("[MQTT] QoS: %d\n"), _mqtt_qos);
DEBUG_MSG_P(PSTR("[MQTT] Retain flag: %d\n"), _mqtt_retain ? 1 : 0);
DEBUG_MSG_P(PSTR("[MQTT] Keepalive time: %ds\n"), _mqtt_keepalive);
DEBUG_MSG_P(PSTR("[MQTT] Will topic: %s\n"), _mqtt_will);
}
if (response) {
_mqttOnConnect();
} else {
DEBUG_MSG_P(PSTR("[MQTT] Connection failed\n"));
}
#endif // MQTT_USE_ASYNC
free(host);
}
void _mqttPlaceholders(String *text) {
text->replace("{hostname}", getSetting("hostname"));
text->replace("{magnitude}", "#");
String mac = WiFi.macAddress();
mac.replace(":", "");
text->replace("{mac}", mac);
}
void _mqttConfigure() {
// Get base topic
_mqtt_topic = getSetting("mqttTopic", MQTT_TOPIC);
if (_mqtt_topic.endsWith("/")) _mqtt_topic.remove(_mqtt_topic.length()-1);
// Placeholders
_mqttPlaceholders(&_mqtt_topic);
if (_mqtt_topic.indexOf("#") == -1) _mqtt_topic = _mqtt_topic + "/#";
// Getters and setters
_mqtt_setter = getSetting("mqttSetter", MQTT_SETTER);
_mqtt_getter = getSetting("mqttGetter", MQTT_GETTER);
_mqtt_forward = !_mqtt_getter.equals(_mqtt_setter) && RELAY_REPORT_STATUS;
// MQTT options
_mqtt_qos = getSetting("mqttQoS", MQTT_QOS).toInt();
_mqtt_retain = getSetting("mqttRetain", MQTT_RETAIN).toInt() == 1;
_mqtt_keepalive = getSetting("mqttKeep", MQTT_KEEPALIVE).toInt();
if (getSetting("mqttClientID").length() == 0) delSetting("mqttClientID");
// Enable
if (getSetting("mqttServer", MQTT_SERVER).length() == 0) {
mqttEnabled(false);
} else {
_mqtt_enabled = getSetting("mqttEnabled", MQTT_ENABLED).toInt() == 1;
}
_mqtt_use_json = (getSetting("mqttUseJson", MQTT_USE_JSON).toInt() == 1);
mqttQueueTopic(MQTT_TOPIC_JSON);
_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
}
void _mqttBackwards() {
String mqttTopic = getSetting("mqttTopic", MQTT_TOPIC);
if (mqttTopic.indexOf("{identifier}") > 0) {
mqttTopic.replace("{identifier}", "{hostname}");
setSetting("mqttTopic", mqttTopic);
}
}
unsigned long _mqttNextMessageId() {
static unsigned long id = 0;
// just reboot, get last count from EEPROM
if (id == 0) {
// read id from EEPROM and shift it
id = EEPROMr.read(EEPROM_MESSAGE_ID);
if (id == 0xFF) {
// There was nothing in EEPROM,
// next message is first message
id = 0;
} else {
id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 1);
id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 2);
id = (id << 8) + EEPROMr.read(EEPROM_MESSAGE_ID + 3);
// Calculate next block and start from there
id = MQTT_MESSAGE_ID_SHIFT * (1 + (id / MQTT_MESSAGE_ID_SHIFT));
}
}
// Save to EEPROM every MQTT_MESSAGE_ID_SHIFT
if (id % MQTT_MESSAGE_ID_SHIFT == 0) {
EEPROMr.write(EEPROM_MESSAGE_ID + 0, (id >> 24) & 0xFF);
EEPROMr.write(EEPROM_MESSAGE_ID + 1, (id >> 16) & 0xFF);
EEPROMr.write(EEPROM_MESSAGE_ID + 2, (id >> 8) & 0xFF);
EEPROMr.write(EEPROM_MESSAGE_ID + 3, (id >> 0) & 0xFF);
eepromCommit();
}
id++;
return id;
}
// -----------------------------------------------------------------------------
// WEB
// -----------------------------------------------------------------------------
#if WEB_SUPPORT
bool _mqttWebSocketOnReceive(const char * key, JsonVariant& value) {
return (strncmp(key, "mqtt", 3) == 0);
}
void _mqttWebSocketOnSend(JsonObject& root) {
root["mqttVisible"] = 1;
root["mqttStatus"] = mqttConnected();
root["mqttEnabled"] = mqttEnabled();
root["mqttServer"] = getSetting("mqttServer", MQTT_SERVER);
root["mqttPort"] = getSetting("mqttPort", MQTT_PORT);
root["mqttUser"] = getSetting("mqttUser", MQTT_USER);
root["mqttClientID"] = getSetting("mqttClientID");
root["mqttPassword"] = getSetting("mqttPassword", MQTT_PASS);
root["mqttKeep"] = _mqtt_keepalive;
root["mqttRetain"] = _mqtt_retain;
root["mqttQoS"] = _mqtt_qos;
#if ASYNC_TCP_SSL_ENABLED
root["mqttsslVisible"] = 1;
root["mqttUseSSL"] = getSetting("mqttUseSSL", MQTT_SSL_ENABLED).toInt() == 1;
root["mqttFP"] = getSetting("mqttFP", MQTT_SSL_FINGERPRINT);
#endif
root["mqttTopic"] = getSetting("mqttTopic", MQTT_TOPIC);
root["mqttUseJson"] = getSetting("mqttUseJson", MQTT_USE_JSON).toInt() == 1;
}
#endif
// -----------------------------------------------------------------------------
// SETTINGS
// -----------------------------------------------------------------------------
#if TERMINAL_SUPPORT
void _mqttInitCommands() {
terminalRegisterCommand(F("MQTT.RESET"), [](Embedis* e) {
_mqttConfigure();
mqttDisconnect();
terminalOK();
});
}
#endif // TERMINAL_SUPPORT
// -----------------------------------------------------------------------------
// MQTT Callbacks
// -----------------------------------------------------------------------------
void _mqttCallback(unsigned int type, const char * topic, const char * payload) {
if (type == MQTT_CONNECT_EVENT) {
// Subscribe to internal action topics
mqttSubscribe(MQTT_TOPIC_ACTION);
// Flag system to send heartbeat
systemSendHeartbeat();
}
if (type == MQTT_MESSAGE_EVENT) {
// Match topic
String t = mqttMagnitude((char *) topic);
// Actions
if (t.equals(MQTT_TOPIC_ACTION)) {
if (strcmp(payload, MQTT_ACTION_RESET) == 0) {
deferredReset(100, CUSTOM_RESET_MQTT);
}
}
}
}
void _mqttOnConnect() {
DEBUG_MSG_P(PSTR("[MQTT] Connected!\n"));
_mqtt_reconnect_delay = MQTT_RECONNECT_DELAY_MIN;
_mqtt_last_connection = millis();
// Clean subscriptions
mqttUnsubscribeRaw("#");
// Send connect event to subscribers
for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
(_mqtt_callbacks[i])(MQTT_CONNECT_EVENT, NULL, NULL);
}
}
void _mqttOnDisconnect() {
// Reset reconnection delay
_mqtt_last_connection = millis();
_mqtt_connecting = false;
DEBUG_MSG_P(PSTR("[MQTT] Disconnected!\n"));
// Send disconnect event to subscribers
for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
(_mqtt_callbacks[i])(MQTT_DISCONNECT_EVENT, NULL, NULL);
}
}
void _mqttOnMessage(char* topic, char* payload, unsigned int len) {
if (len == 0) return;
char message[len + 1];
strlcpy(message, (char *) payload, len + 1);
#if MQTT_SKIP_RETAINED
if (millis() - _mqtt_last_connection < MQTT_SKIP_TIME) {
DEBUG_MSG_P(PSTR("[MQTT] Received %s => %s - SKIPPED\n"), topic, message);
return;
}
#endif
DEBUG_MSG_P(PSTR("[MQTT] Received %s => %s\n"), topic, message);
// Send message event to subscribers
for (unsigned char i = 0; i < _mqtt_callbacks.size(); i++) {
(_mqtt_callbacks[i])(MQTT_MESSAGE_EVENT, topic, message);
}
}
// -----------------------------------------------------------------------------
// Public API
// -----------------------------------------------------------------------------
/**
Returns the magnitude part of a topic
@param topic the full MQTT topic
@return String object with the magnitude part.
*/
String mqttMagnitude(char * topic) {
String pattern = _mqtt_topic + _mqtt_setter;
int position = pattern.indexOf("#");
if (position == -1) return String();
String start = pattern.substring(0, position);
String end = pattern.substring(position + 1);
String magnitude = String(topic);
if (magnitude.startsWith(start) && magnitude.endsWith(end)) {
magnitude.replace(start, "");
magnitude.replace(end, "");
} else {
magnitude = String();
}
return magnitude;
}
/**
Returns a full MQTT topic from the magnitude
@param magnitude the magnitude part of the topic.
@param is_set whether to build a command topic (true)
or a state topic (false).
@return String full MQTT topic.
*/
String mqttTopic(const char * magnitude, bool is_set) {
String output = _mqtt_topic;
output.replace("#", magnitude);
output += is_set ? _mqtt_setter : _mqtt_getter;
return output;
}
/**
Returns a full MQTT topic from the magnitude
@param magnitude the magnitude part of the topic.
@param index index of the magnitude when more than one such magnitudes.
@param is_set whether to build a command topic (true)
or a state topic (false).
@return String full MQTT topic.
*/
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
}
#else
bool mqttForward() {
return false;
}
#endif // MQTT_SUPPORT