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Broker handling / connection updated

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This commit is contained in:
Gregor Baues 2021-05-19 15:31:30 +02:00
parent 428628f6f0
commit b5520f13ba
5 changed files with 165 additions and 38 deletions
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47
MQTTBrokers.h
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@ -1,27 +1,42 @@
/*
* © 2021, Gregor Baues, All rights reserved.
*
* This file is part of DCC-EX/CommandStation-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifndef _MQTTBrokers_h_
#define _MQTTBrokers_h_
// Define Broker configurations; Values are provided in the following order
// MQTT_BROKER_PORT 9883
// MQTT_BROKER_DOMAIN "dcclms.modelrailroad.ovh"
// MQTT_BROKER_ADDRESS 51, 210, 151, 143
// MQTT_BROKER_USER "dcccs"
// MQTT_BROKER_PASSWD "dcccs$3020"
// MQTT_BROKER_CLIENTID_PREFIX "dcc$lms-"
// Defines preconfigured mqtt broker configurations
// Local server no user / pwd / prefix required
// EthernetShields / Arduino do not support securte transport i.e. on either port 443 or 8883 for MQTTS on most broker installations
// EthernetShields / Arduino do not support secure transport i.e. on either port 443 or 8883 for MQTTS on most broker installations
// Once we support the ESP / Wifi as Transport medium we may get TLS capabilities for data in transit i.e. can use the 443/8883 ports
#define LOCAL_MQTT_BROKER F("LOCALMQ"), new MQTTBroker( 1883, {192, 168, 0, 51}, F("my.local.server"))
// Local server with user / pwd and no prefix
#define LOCAL_MQTT_USER_BROKER F("LOCALMQ"), new MQTTBroker( 1883, {192, 168, 0, 51}, F("my.local.server"), F("myuser"), F("mypassword"))
// Cloud server
#define DCCEX_MQTT_BROKER F("DCCEXMQ"), new MQTTBroker( 9883, {51, 210, 151, 143}, F("dcclms.modelrailroad.ovh"), F("dcccs"), F("dcccs$3020"), F("dcc$lms-"))
// Cloud server
#define DCCEX_MQTT_DOMAIN_BROKER F("DCCEXMQ"), new MQTTBroker( 9883, F("dcclms.modelrailroad.ovh"), F("dcccs"), F("dcccs$3020"), F("dcc$lms-"))
#define MQPWD F(MQTT_PWD)
#define MQUID F(MQTT_USER)
#define MQPREFIX F(MQTT_PREFIX)
// Cloud server provided by the DccEX team for testing purposes; apply for a uid/pwd on discord
#define DCCEX_MQTT_BROKER F("DccexMQ"), new MQTTBroker( 9883, F("dcclms.modelrailroad.ovh"), MQUID, MQPWD, MQPREFIX)
// Mosquitto test server
#define DCCEX_MOSQUITTO F("Mosquitto"), new MQTTBroker(1883, F("test.mosquitto.org"))
// HiveMQ test server
#define DCCEX_HIVEMQ F("HiveMQ"), new MQTTBroker(1883, F("broker.hivemq.com"))
#endif

66
MQTTInterface.cpp
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@ -1,3 +1,23 @@
/*
* © 2021, Gregor Baues, All rights reserved.
*
* This file is part of DCC-EX/CommandStation-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*
*/
#if __has_include("config.h")
#include "config.h"
#else
@ -274,9 +294,9 @@ void MQTTInterface::connect()
switch (broker->cType)
{
// no uid no pwd
case 6:
case 1:
{ // port(p), ip(i), domain(d),
DIAG(F("MQTT Broker connecting anonymous ..."));
if (mqttClient->connect(connectID))
{
DIAG(F("MQTT Broker connected ..."));
@ -288,24 +308,37 @@ void MQTTInterface::connect()
else
{
DIAG(F("MQTT broker connection failed, rc=%d, trying to reconnect"), mqttClient->state());
mqState = CONNECTION_FAILED;
reconnectCount++;
}
break;
}
// with uid passwd
case 5:
case 2:
{ // port(p), ip(i), domain(d), user(uid), pwd(pass),
break;
}
// with uid, passwd & prefix
case 4:
case 3:
{ // port(p), ip(i), domain(d), user(uid), pwd(pass), prefix(pfix)
// port(p), domain(d), user(uid), pwd(pass), prefix(pfix)
// mqttClient.connect(connectID, MQTT_BROKER_USER, MQTT_BROKER_PASSWD, "$connected", 0, true, "0", 0))
break;
{
DIAG(F("MQTT Broker connecting with uid/pwd ..."));
char user[strlen_P((const char *) broker->user)];
char pwd[strlen_P((const char *) broker->pwd)];
// need to copy from progmem to lacal
strcpy_P(user, (const char *)broker->user);
strcpy_P(pwd, (const char *)broker->pwd);
if (mqttClient->connect(connectID, user, pwd))
{
DIAG(F("MQTT Broker connected ..."));
auto sub = subscribe(clientID); // set up the main subscription on which we will recieve the intal mi message from a subscriber
if (Diag::MQTT)
DIAG(F("MQTT subscriptons %s..."), sub ? "ok" : "failed");
mqState = CONNECTED;
}
else
{
DIAG(F("MQTT broker connection failed, rc=%d, trying to reconnect"), mqttClient->state());
reconnectCount++;
}
break;
// ! add last will messages for the client
// (connectID, MQTT_BROKER_USER, MQTT_BROKER_PASSWD, "$connected", 0, true, "0", 0))
}
}
if (reconnectCount == MAXRECONNECT)
@ -500,12 +533,17 @@ void MQTTInterface::loop()
singleton->loop2();
}
bool showonce = false;
void MQTTInterface::loop2()
{
// Connection impossible so just don't do anything
if (singleton->mqState == CONNECTION_FAILED)
{
DIAG(F("MQTT connection failed..."));
if(!showonce) {
DIAG(F("MQTT connection failed..."));
showonce = true;
}
return;
}
if (!mqttClient->connected())

52
MQTTInterface.h
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@ -1,3 +1,23 @@
/*
* © 2021, Gregor Baues, All rights reserved.
*
* This file is part of DCC-EX/CommandStation-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifndef _MQTTInterface_h_
#define _MQTTInterface_h_
@ -67,21 +87,41 @@ struct MQTTBroker
return bip;
}
MQTTBroker(int p, IPAddress i, const FSH *d) : port(p), ip(i), domain(d), cType(1){};
MQTTBroker(int p, IPAddress i, const FSH *d, const FSH *uid, const FSH *pass) : port(p), ip(i), domain(d), user(uid), pwd(pass), cType(2){};
MQTTBroker(int p, IPAddress i, const FSH *d, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), ip(i), domain(d), user(uid), pwd(pass), prefix(pfix), cType(3){};
MQTTBroker(int p, const FSH *d, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), domain(d), user(uid), pwd(pass), prefix(pfix), cType(4)
// all boils down to the ip address type = 1 without user authentication 2 with user authentication
// no ssl support !
// port & ip address
MQTTBroker(int p, IPAddress i) : port(p), ip(i), cType(1){};
// port & domain name
MQTTBroker(int p, const FSH *d) : port(p), domain(d), cType(1)
{
ip = resovleBroker(d);
};
MQTTBroker(int p, const FSH *d, const FSH *uid, const FSH *pass) : port(p), domain(d), user(uid), pwd(pass), cType(5)
// port & ip & prefix
MQTTBroker(int p, IPAddress i, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), ip(i), prefix(pfix), cType(1){};
// port & domain & prefix
MQTTBroker(int p, const FSH *d, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), domain(d), prefix(pfix), cType(1)
{
ip = resovleBroker(d);
};
MQTTBroker(int p, const FSH *d) : port(p), domain(d), cType(6)
// port & ip & user & pwd
MQTTBroker(int p, IPAddress i, const FSH *uid, const FSH *pass) : port(p), ip(i), user(uid), pwd(pass), cType(2){};
// port & domain & user & pwd
MQTTBroker(int p, const FSH *d, const FSH *uid, const FSH *pass) : port(p), domain(d), user(uid), pwd(pass), cType(2)
{
ip = resovleBroker(d);
};
// port & ip & user & pwd & prefix
MQTTBroker(int p, IPAddress i, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), ip(i), user(uid), pwd(pass), prefix(pfix), cType(2){};
// port & domain & user & pwd & prefix
MQTTBroker(int p, const FSH *d, const FSH *uid, const FSH *pass, const FSH *pfix) : port(p), domain(d), user(uid), pwd(pass), prefix(pfix), cType(2)
{
ip = resovleBroker(d);
};
};
/**

17
Queue.h
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@ -1,5 +1,20 @@
/*
* Queue.h
* © 2021, Gregor Baues, All rights reserved.
*
* This file is part of DCC-EX/CommandStation-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*
*/

21
config.example.h
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@ -98,15 +98,34 @@ The configuration file for DCC-EX Command Station
// library from <add link here> or get via the libray manager either from the IDE
// or PIO
#define MQTT_USER "your broker user name"
#define MQTT_PWD "your broker passwd"
#define MQTT_PREFIX "prefix if required by the broker"
// #define ENABLE_MQTT true
// Set the used broker to one of the configurations from MQTTBrokers.h where some
// public freely avaiable brokers are configured
// DEFINE THE MQTT BROKER BELOW ACCORDING TO THE FOLLOWING TABLE:
//
// DCCEX_MQTT_BROKER : DCCEX Team best effort operated MQTT broker; pls apply for user/pwd on discord in the mqtt channel if you want to try it
// DCCEX_MOSQUITTO : Mosquitto.org public test broker no user / pwd required so anyone can subscribe/publish to any topic here; good for testing only
// DCCEX_HIVEMQ : Provided by HiveMQ; Public no user / pwd required
// |
// +-----------------------v
#define CSMQTTBROKER DCCEX_MOSQUITTO
// Example for configuring your own MQTT broker
// --------------------------
// CUSTOMIZED EXAMPLE
// Configuration for a broker installed on a machine on you home netowrk where the IP address of the machine runing the broker
// is 192.168.0.2 and requires user authentication. The uid ad pwd are set in the config.h file
// Port IPAddress Username (opt) Password(opt) Prefix (opt)
// #define MY_PERSONAL_BROKER F("MYBROKERMQ"), new MQTTBroker( 1883, {192, 168, 0, 2}, F("username"), F("password"), F("prefix-if-required"))
//
// If you have access to a broker on the internet replace the IPAddress by F("my-broker-domain-name")
// -------------------------
/////////////////////////////////////////////////////////////////////////////////////