尝试连接到代理时出现 "bad username or password" 错误

Question

我已按照 here 提供的教程进行操作，但无法将客户端连接到服务器。我总是收到以下错误消息（完整堆栈跟踪）：

Error: Connection refused: Bad username or password
at MqttClient._handleConnack (${project_dir}/node_modules/mqtt/lib/client.js:760:24)
at MqttClient._handlePacket (${project_dir}/node_modules/mqtt/lib/client.js:300:12)
at process (${project_dir}/node_modules/mqtt/lib/client.js:242:12)
at Writable.writable._write (${project_dir}/node_modules/mqtt/lib/client.js:252:5)
at doWrite (${project_dir}/node_modules/mqtt/node_modules/readable-stream/lib/_stream_writable.js:345:64)
at writeOrBuffer (${project_dir}/node_modules/mqtt/node_modules/readable-stream/lib/_stream_writable.js:334:5)
at Writable.write (${project_dir}/node_modules/mqtt/node_modules/readable-stream/lib/_stream_writable.js:271:11)
at Socket.ondata (_stream_readable.js:528:20)
at emitOne (events.js:77:13)
at Socket.emit (events.js:169:7)

我仔细检查了我的环境变量，其值来自我的 Auth0 帐户，（特别是 CLIENT_ID、DOMAIN、CLIENT_SECRET 和 CONNECTION）但是它们看起来不错。

我稍微更改了客户端代码以匹配 MQTT.js 的当前版本。这是代码：

const mqtt = require('mqtt');
const settings = {
    port: 1883,
    keepalive: 1000,
    protocolId: 'MQIsdp', // already tried 'MQTT' with protocol version 4
    protocolVersion: 3,
    clientId: 'a random id',
    username: 'an account at Auth0',
    password: 'the password of the account'
}

var client = mqtt.connect('mqtt://localhost', settings);

client.on("connect", function () {
    client.subscribe("topic");
    console.log("connected");
});

client.on("message", function (topic, message) {
    // message is Buffer 
    console.log(message.toString());
    client.end();
});

经纪人代码与教程中的代码非常相似。我想在更改之前解决这个错误。

const mosca = require('mosca')
const Auth0Mosca = require('auth0mosca');
require('dotenv').config();

const settings = {
    port: 1883
};

if (!process.env.AUTH0_DOMAIN || !process.env.AUTH0_CLIENT_ID ||
    !process.env.AUTH0_CLIENT_SECRET || !process.env.AUTH0_CONNECTION) {
    throw 'Make sure you have AUTH0_DOMAIN, AUTH0_CLIENT_ID, AUTH0_CLIENT_SECRET and AUTH0_CONNECTION in your .env file';
}

const auth0 = new Auth0Mosca('https://' + process.env.AUTH0_DOMAIN, process.env.AUTH0_CLIENT_ID, process.env.AUTH0_CLIENT_SECRET, process.env.AUTH0_CONNECTION);

// mosca server
const server = new mosca.Server(settings);

server.authenticate = auth0.authenticateWithCredentials();
server.authorizePublish = auth0.authorizePublish();
server.authorizeSubscribe = auth0.authorizeSubscribe();

server.on('ready', setup);

// MQTT server is ready
function setup() {
    console.log('Mosca server is up and running');
}

server.on('clientConnected', function(client) {
    console.log('New connection: ', client.id);
});

我知道这可能是一个愚蠢的错误或库更新导致的。对于后一种情况，这里是版本：

"auth0mosca": "^0.1.0",
"mosca": "^2.3.0",
"mqtt": "^2.5.0"

最后，我检查了请求是否到达代理。

Answer 1

我有 forked 包含教程代码的存储库，并将其依赖项更新到最新版本。此外，还增加了验证使用 RS256 算法等签名的 JWT 的可能性。

这解决了我的问题，我希望它能帮助面临同样问题的每个人。

尝试连接到代理时出现 "bad username or password" 错误

Getting "bad username or password" error while attempting to connect to broker

node.js

mqtt

auth0