Add settings for mqtt server authentication

[DavidSpivey]

I have been looking at the screenshot for the web interface, and I don't see any options for setting an MQTT server password. Although I haven't yet downloaded the code, I assume authentication is not enabled. Is this true? How quickly can you add user/pass authentication to the code for MQTT servers?

[DavidSpivey]

I have verified in the code that there is no setting for mqtt server authentication. It seems simple enough to get an mqtt_user and mqtt_pass variable into the prefs. I have made changes to my own code to allow me to connect, but this should be an integral part.

[DavidSpivey]

This is how I solved it. However, you may need to make an MQTT authentication checkbox in the HTML file for those who do not use MQTT authentication.

cheaperstick.ino

typedef struct {
  long magicNumber = 77824591l;
  char ssid[50] = "";
  char password[50] = "";
  char mqtt_server[50] = "192.168.0.33";
  char mqtt_prefix[50] = "esp/";
  char mqtt_user[50] = "";
  char mqtt_pass[50] = "";
  bool enableWifi = true;
  bool enableMqtt = false;
  bool enableRcReceive = true;
  bool enableRcTransmit = true;
} Prefs;

  while (!client.connected() && mqttTriesLeft > 0) {
    Serial.print("mqtt connecting "); Serial.println(prefs.mqtt_server);
    // Attempt to connect
    if (client.connect("cheapstick", prefs.mqtt_user, prefs.mqtt_pass)) {
      Serial.println("mqtt connected");
      // ... and subscribe to topic
      client.subscribe((String(prefs.mqtt_prefix) + "#").c_str());
    } else {
      Serial.print("mqtt error "); Serial.println(client.state());
      // Wait 5 seconds before retrying
      delay(5000);
      mqttTriesLeft--;
    }
  }

  webServer.on("/prefs", HTTP_GET, [](AsyncWebServerRequest *request){
    AsyncResponseStream *response = request->beginResponseStream("text/json");
    StaticJsonBuffer<200> jsonBuffer;
    JsonObject& jsonObject = jsonBuffer.createObject();
    jsonObject.set("enableWifi", prefs.enableWifi);
    jsonObject.set("enableMqtt", prefs.enableMqtt);
    jsonObject.set("enableRcReceive", prefs.enableRcReceive);
    jsonObject.set("enableRcTransmit", prefs.enableRcTransmit);
    jsonObject["ssid"] = prefs.ssid;
    jsonObject["mqtt_server"] = prefs.mqtt_server;
    jsonObject["mqtt_prefix"] = prefs.mqtt_prefix;
    jsonObject["mqtt_user"] = prefs.mqtt_user;
    jsonObject["mqtt_pass"] = prefs.mqtt_pass;
    jsonObject.printTo(*response);
    request->send(response);
  });

  // web service to set POSTed prefs and save if EEPROM
  webServer.on("/prefs", HTTP_POST, [](AsyncWebServerRequest *request){
    bool anySet = false;
    setStringFromArg(request, prefs.ssid, sizeof prefs.ssid, "ssid", false, anySet);
    setStringFromArg(request, prefs.password, sizeof prefs.password, "password", true, anySet);
    setStringFromArg(request, prefs.mqtt_server, sizeof prefs.mqtt_server, "mqtt_server", false, anySet);
    setStringFromArg(request, prefs.mqtt_prefix, sizeof prefs.mqtt_prefix, "mqtt_prefix", false, anySet);
    setStringFromArg(request, prefs.mqtt_user, sizeof prefs.mqtt_user, "mqtt_user", false, anySet);
    setStringFromArg(request, prefs.mqtt_pass, sizeof prefs.mqtt_pass, "mqtt_pass", false, anySet);
    setBoolFromArg(request, prefs.enableWifi, "enableWifi", true, anySet);

index.html

          <tr>
            <td>mqtt username</td>
            <td><input id="mqtt_user" name="mqtt_user" type="text"></td>
          </tr>
          <tr>
            <td>mqtt password</td>
            <td><input id="mqtt_pass" name="mqtt_pass" type="text"></td>
          </tr>

      document.getElementById('mqtt_server').value = data.mqtt_server;
      document.getElementById('mqtt_prefix').value = data.mqtt_prefix;
      document.getElementById('mqtt_user').value = data.mqtt_user;
      document.getElementById('mqtt_pass').value = data.mqtt_pass;

[edgiru]

[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino
lib_deps =
PubSubClient
ArduinoJson
RCSwitch
ESPAsyncWebServer
ESPAsyncTCP
ESP8266mDNS
upload_speed = 115200

does not work. constantly cyclically reboots.
I tried all the methods. Without adding your code works fine.

mqtt connecting 192.168.1.1

Exception (9):
epc1=0x40201289 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000003 depc=0x00000000

ctx: cont
sp: 3fff0cd0 end: 3fff0fe0 offset: 01a0

>>>stack>>>
3fff0e70:  3ffe8724 0000075b 3ffefd88 40202388
3fff0e80:  3ffe01ba 1932a8c0 3ffe9b80 1932a8c0
3fff0e90:  3ffe86c0 00000000 3fff2a20 00000000
3fff0ea0:  3ffe8724 3ffefccc 3ffefcd0 402013cc
3fff0eb0:  514d0400 00045454 3ffe86cc 3ffeffb0
3fff0ec0:  3ffe8756 3ffe8c28 00000000 40209d49

3fff0ed0:  3ffe9840 3ffefccc 3ffeff84 3ffeffb0
3fff0ee0:  3ffe8520 3ffefccc 3ffeff84 40201464
3fff0ef0:  00000000 00000000 3ffeff84 40209d98
3fff0f00:  40232bb2 3ffefccc 3ffeff84 40213049
3fff0f10:  40233d3f 000000b0 3ffefc78 401004d8
3fff0f20:  3fff1b74 40202154 000004a7 402122a8
3fff0f30:  3fffdad0 00000000 3ffe8758 402135e7
3fff0f40:  401068bd 000004a7 000004a7 40106aa8
3fff0f50:  00000000 3ffe8758 3ffefc78 3ffe8d70
3fff0f60:  00000000 3ffe8758 3ffefc78 401068dc
3fff0f70:  00000000 3ffefc78 3fff2b34 4020b194
3fff0f80:  40212dfc 3ffe8758 3ffefc78 402096e6
3fff0f90:  00000000 3ffe8758 3ffefc78 40213506
3fff0fa0:  40212dfc 2432a8c0 40213ed4 40213ec0
3fff0fb0:  feefeffe feefeffe feefeffe 3ffeffb0
3fff0fc0:  3fffdad0 00000000 3ffeffa9 4020ab84
3fff0fd0:  feefeffe feefeffe 3ffeffc0 4020ccfc
<<<stack<<<

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v4ceabea9
~ld

wifi connecting rrrr