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MySensors/core/MyGatewayTransportMQTTClient.cpp
Olivier 40f4deb18c Code maintenance (#1309) 
* Fix issues after CPPcheck 1.88 update

* Code maintenance
2019-07-20 14:08:33 +02:00

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/*
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2019 Sensnology AB
* Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
// Topic structure: MY_MQTT_PUBLISH_TOPIC_PREFIX/NODE-ID/SENSOR-ID/CMD-TYPE/ACK-FLAG/SUB-TYPE
#include "MyGatewayTransport.h"
// housekeeping, remove for 3.0.0
#ifdef MY_ESP8266_SSID
#warning MY_ESP8266_SSID is deprecated, use MY_WIFI_SSID instead!
#define MY_WIFI_SSID MY_ESP8266_SSID
#undef MY_ESP8266_SSID // cleanup
#endif
#ifdef MY_ESP8266_PASSWORD
#warning MY_ESP8266_PASSWORD is deprecated, use MY_WIFI_PASSWORD instead!
#define MY_WIFI_PASSWORD MY_ESP8266_PASSWORD
#undef MY_ESP8266_PASSWORD // cleanup
#endif
#ifdef MY_ESP8266_BSSID
#warning MY_ESP8266_BSSID is deprecated, use MY_WIFI_BSSID instead!
#define MY_WIFI_BSSID MY_ESP8266_BSSID
#undef MY_ESP8266_BSSID // cleanup
#endif
#ifdef MY_ESP8266_HOSTNAME
#warning MY_ESP8266_HOSTNAME is deprecated, use MY_HOSTNAME instead!
#define MY_HOSTNAME MY_ESP8266_HOSTNAME
#undef MY_ESP8266_HOSTNAME // cleanup
#endif
#ifndef MY_MQTT_USER
#define MY_MQTT_USER NULL
#endif
#ifndef MY_MQTT_PASSWORD
#define MY_MQTT_PASSWORD NULL
#endif
#if defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
#if !defined(MY_WIFI_SSID)
#error ESP8266/ESP32 MQTT gateway: MY_WIFI_SSID not defined!
#endif
#endif
#if defined MY_CONTROLLER_IP_ADDRESS
#define _brokerIp IPAddress(MY_CONTROLLER_IP_ADDRESS)
#endif
#if defined(MY_IP_ADDRESS)
#define _MQTT_clientIp IPAddress(MY_IP_ADDRESS)
#if defined(MY_IP_GATEWAY_ADDRESS)
#define _gatewayIp IPAddress(MY_IP_GATEWAY_ADDRESS)
#elif defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
// Assume the gateway will be the machine on the same network as the local IP
// but with last octet being '1'
#define _gatewayIp IPAddress(_MQTT_clientIp[0], _MQTT_clientIp[1], _MQTT_clientIp[2], 1)
#endif /* End of MY_IP_GATEWAY_ADDRESS */
#if defined(MY_IP_SUBNET_ADDRESS)
#define _subnetIp IPAddress(MY_IP_SUBNET_ADDRESS)
#elif defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
#define _subnetIp IPAddress(255, 255, 255, 0)
#endif /* End of MY_IP_SUBNET_ADDRESS */
#endif /* End of MY_IP_ADDRESS */
#if defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
#define EthernetClient WiFiClient
#elif defined(MY_GATEWAY_LINUX)
// Nothing to do here
#else
uint8_t _MQTT_clientMAC[] = { MY_MAC_ADDRESS };
#endif /* End of MY_GATEWAY_ESPxy */
#if defined(MY_GATEWAY_TINYGSM)
#if defined(MY_GSM_RX) && defined(MY_GSM_TX)
SoftwareSerial SerialAT(MY_GSM_RX, MY_GSM_TX);
#endif
static TinyGsm modem(SerialAT);
static TinyGsmClient _MQTT_ethClient(modem);
#if defined(MY_GSM_BAUDRATE)
uint32_t rate = MY_GSM_BAUDRATE;
#else /* Else part of MY_GSM_BAUDRATE */
uint32_t rate = 0;
#endif /* End of MY_GSM_BAUDRATE */
#else /* Else part of MY_GATEWAY_TINYGSM */
static EthernetClient _MQTT_ethClient;
#endif /* End of MY_GATEWAY_TINYGSM */
static PubSubClient _MQTT_client(_MQTT_ethClient);
static bool _MQTT_connecting = true;
static bool _MQTT_available = false;
static MyMessage _MQTT_msg;
bool gatewayTransportSend(MyMessage &message)
{
if (!_MQTT_client.connected()) {
return false;
}
setIndication(INDICATION_GW_TX);
char *topic = protocolMyMessage2MQTT(MY_MQTT_PUBLISH_TOPIC_PREFIX, message);
GATEWAY_DEBUG(PSTR("GWT:TPS:TOPIC=%s,MSG SENT\n"), topic);
#if defined(MY_MQTT_CLIENT_PUBLISH_RETAIN)
const bool retain = message.getCommand() == C_SET ||
(message.getCommand() == C_INTERNAL && message.getType() == I_BATTERY_LEVEL);
#else
const bool retain = false;
#endif /* End of MY_MQTT_CLIENT_PUBLISH_RETAIN */
return _MQTT_client.publish(topic, message.getString(_convBuffer), retain);
}
void incomingMQTT(char *topic, uint8_t *payload, unsigned int length)
{
GATEWAY_DEBUG(PSTR("GWT:IMQ:TOPIC=%s, MSG RECEIVED\n"), topic);
_MQTT_available = protocolMQTT2MyMessage(_MQTT_msg, topic, payload, length);
setIndication(INDICATION_GW_RX);
}
bool reconnectMQTT(void)
{
GATEWAY_DEBUG(PSTR("GWT:RMQ:CONNECTING...\n"));
// Attempt to connect
if (_MQTT_client.connect(MY_MQTT_CLIENT_ID, MY_MQTT_USER, MY_MQTT_PASSWORD)) {
GATEWAY_DEBUG(PSTR("GWT:RMQ:OK\n"));
// Send presentation of locally attached sensors (and node if applicable)
presentNode();
// Once connected, publish subscribe
if (__builtin_constant_p(MY_MQTT_SUBSCRIBE_TOPIC_PREFIX)) {
// to save some memory
_MQTT_client.subscribe(MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "/+/+/+/+/+");
} else {
char inTopic[strlen(MY_MQTT_SUBSCRIBE_TOPIC_PREFIX) + strlen("/+/+/+/+/+")];
(void)strncpy(inTopic, MY_MQTT_SUBSCRIBE_TOPIC_PREFIX, strlen(MY_MQTT_SUBSCRIBE_TOPIC_PREFIX) + 1);
(void)strcat(inTopic, "/+/+/+/+/+");
_MQTT_client.subscribe(inTopic);
}
return true;
}
delay(1000);
GATEWAY_DEBUG(PSTR("!GWT:RMQ:FAIL\n"));
return false;
}
bool gatewayTransportConnect(void)
{
#if defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
if (WiFi.status() != WL_CONNECTED) {
GATEWAY_DEBUG(PSTR("GWT:TPC:CONNECTING...\n"));
delay(1000);
return false;
}
GATEWAY_DEBUG(PSTR("GWT:TPC:IP=%s\n"), WiFi.localIP().toString().c_str());
#elif defined(MY_GATEWAY_LINUX)
#if defined(MY_IP_ADDRESS)
_MQTT_ethClient.bind(_MQTT_clientIp);
#endif /* End of MY_IP_ADDRESS */
#elif defined(MY_GATEWAY_TINYGSM)
GATEWAY_DEBUG(PSTR("GWT:TPC:IP=%s\n"), modem.getLocalIP().c_str());
#else
#if defined(MY_IP_ADDRESS)
Ethernet.begin(_MQTT_clientMAC, _MQTT_clientIp);
#else /* Else part of MY_IP_ADDRESS */
// Get IP address from DHCP
if (!Ethernet.begin(_MQTT_clientMAC)) {
GATEWAY_DEBUG(PSTR("!GWT:TPC:DHCP FAIL\n"));
_MQTT_connecting = false;
return false;
}
#endif /* End of MY_IP_ADDRESS */
GATEWAY_DEBUG(PSTR("GWT:TPC:IP=%" PRIu8 ".%" PRIu8 ".%" PRIu8 ".%" PRIu8 "\n"),
Ethernet.localIP()[0],
Ethernet.localIP()[1], Ethernet.localIP()[2], Ethernet.localIP()[3]);
// give the Ethernet interface a second to initialize
delay(1000);
#endif
return true;
}
bool gatewayTransportInit(void)
{
_MQTT_connecting = true;
#if defined(MY_GATEWAY_TINYGSM)
#if !defined(MY_GSM_BAUDRATE)
rate = TinyGsmAutoBaud(SerialAT);
#endif /* End of MY_GSM_BAUDRATE */
SerialAT.begin(rate);
delay(3000);
modem.restart();
#if defined(MY_GSM_PIN) && !defined(TINY_GSM_MODEM_ESP8266)
modem.simUnlock(MY_GSM_PIN);
#endif /* End of MY_GSM_PIN */
#ifndef TINY_GSM_MODEM_ESP8266
if (!modem.waitForNetwork()) {
GATEWAY_DEBUG(PSTR("!GWT:TIN:ETH FAIL\n"));
while (true);
}
GATEWAY_DEBUG(PSTR("GWT:TIN:ETH OK\n"));
if (!modem.gprsConnect(MY_GSM_APN, MY_GSM_USR, MY_GSM_PSW)) {
GATEWAY_DEBUG(PSTR("!GWT:TIN:ETH FAIL\n"));
while (true);
}
GATEWAY_DEBUG(PSTR("GWT:TIN:ETH OK\n"));
delay(1000);
#else /* Else part of TINY_GSM_MODEM_ESP8266 */
if (!modem.networkConnect(MY_GSM_SSID, MY_GSM_PSW)) {
GATEWAY_DEBUG(PSTR("!GWT:TIN:ETH FAIL\n"));
while (true);
}
GATEWAY_DEBUG(PSTR("GWT:TIN:ETH OK\n"));
delay(1000);
#endif /* End of TINY_GSM_MODEM_ESP8266 */
#endif /* End of MY_GATEWAY_TINYGSM */
#if defined(MY_CONTROLLER_IP_ADDRESS)
_MQTT_client.setServer(_brokerIp, MY_PORT);
#else
_MQTT_client.setServer(MY_CONTROLLER_URL_ADDRESS, MY_PORT);
#endif /* End of MY_CONTROLLER_IP_ADDRESS */
_MQTT_client.setCallback(incomingMQTT);
#if defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
// Turn off access point
WiFi.mode(WIFI_STA);
#if defined(MY_GATEWAY_ESP8266)
WiFi.hostname(MY_HOSTNAME);
#elif defined(MY_GATEWAY_ESP32)
WiFi.setHostname(MY_HOSTNAME);
#endif
#if defined(MY_IP_ADDRESS)
WiFi.config(_MQTT_clientIp, _gatewayIp, _subnetIp);
#endif /* End of MY_IP_ADDRESS */
(void)WiFi.begin(MY_WIFI_SSID, MY_WIFI_PASSWORD, 0, MY_WIFI_BSSID);
#endif
gatewayTransportConnect();
_MQTT_connecting = false;
return true;
}
bool gatewayTransportAvailable(void)
{
if (_MQTT_connecting) {
return false;
}
#if defined(MY_GATEWAY_ESP8266) || defined(MY_GATEWAY_ESP32)
if (WiFi.status() != WL_CONNECTED) {
#if defined(MY_GATEWAY_ESP32)
(void)gatewayTransportInit();
#endif
return false;
}
#endif
if (!_MQTT_client.connected()) {
//reinitialise client
if (gatewayTransportConnect()) {
reconnectMQTT();
}
return false;
}
_MQTT_client.loop();
return _MQTT_available;
}
MyMessage & gatewayTransportReceive(void)
{
// Return the last parsed message
_MQTT_available = false;
return _MQTT_msg;
}
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