為什么我在socket.io和自簽名ssl連接上收到“超時”錯誤

我用 https 創建了一個 nodejs 服務器。發出 GET 請求時沒有問題，但是當連接另一個與 socket.io-client 一起使用的 nodejs 應用程式時，我收到錯誤訊息“WebSocket 在連接建立之前已關閉”。可能是什么原因？

服務器.js：

import https from 'https';
import fs from 'fs';
import { Server } from 'socket.io';

const options = {
    key: fs.readFileSync('../certs/server-key.pem'),
    cert: fs.readFileSync('../certs/server-crt.pem'),
    ca: [
        fs.readFileSync('../certs/client-ca-crt.pem')
    ],
    requestCert: true,
    rejectUnauthorized: false
};

const server = https.createServer(options);
const io = new Server(server, { serveClient: false });

io.sockets.on('connection', function (socket) {
    console.log(socket.id);
});

server.listen({ port: 8443, host: 'localhost' }, () => {
    console.log(server.address());
});

客戶端.js：

import { io } from 'socket.io-client';
import fs from 'fs';

const socket = io('https://server.aaa.com:8443', {
    hostname: 'server.aaa.com',
    transports: ['websocket'],
    key: fs.readFileSync('../certs/client-key.pem'),
    cert: fs.readFileSync('../certs/client-crt.pem'),
    ca: [
      fs.readFileSync('../certs/server-ca-crt.pem')
    ],
    rejectUnauthorized: false,
    reconnection: false
});

socket.on('connect', () => {
    console.log(socket.id);
});

socket.on("error", (err) => {
    console.log(err);
});

socket.on("connect_error", (err) => {
    console.log(err);
});

沒有問題：

const fs = require("fs");
const https = require("https");
const message = { msg: "Hello!" };

const req = https.request(
  {
    host: "server.aaa.com",
    port: 8443,
    key: fs.readFileSync(`../certs/client-key.pem`),
    cert: fs.readFileSync(`../certs/client-crt.pem`),
    ca: [
      fs.readFileSync(`../certs/server-ca-crt.pem`)
    ],
    path: "/",
    method: "GET",
  },
  function(response) {
    let rawData = "";
    response.on("data", function(data) {
      rawData  = data;
    });
    response.on("end", function() {
      if (rawData.length > 0) {
        console.log(`Received message: ${rawData}`);
      }
      console.log(`TLS Connection closed!`);
      req.end();
      return;
    });
  }
);
req.on("socket", function(socket) {
  socket.on("secureConnect", function() {
    if (socket.authorized === false) {
      console.log(`SOCKET AUTH FAILED ${socket.authorizationError}`);
    }
    console.log("TLS Connection established successfully!");
  });
  socket.setTimeout(10000);
  socket.on("timeout", function() {
    console.log("TLS Socket Timeout!");
    req.end();
    return;
  });
});
req.on("error", function(err) {
  console.log(`TLS Socket ERROR (${err})`);
  req.end();
  return;
});
req.write(JSON.stringify(message));

輸出：

TLS Connection established successfully!
Received message: OK!
TLS Connection closed!

uj5u.com熱心網友回復：

我終于找到了解決問題的方法。

我需要為 socket.io 添加以下代碼以使用默認的 socket.io 路徑（/socket.io）。

io.listen(server);

服務器.js

import https from 'https';
import fs from 'fs';
import { Server } from 'socket.io';

const options = {
    key: fs.readFileSync('../certs/server-key.pem'),
    cert: fs.readFileSync('../certs/server-crt.pem'),
    ca: [
        fs.readFileSync('../certs/client-ca-crt.pem')
    ],
    requestCert: true,
    rejectUnauthorized: false
};

const server = https.createServer(options);

const io = new Server(server);
io.listen(server);

io.on('connection', function (socket) {
    console.log(socket.id);
});

server.listen({ port: 9443, host: 'localhost' }, () => {
    console.log(server.address());
});

uj5u.com熱心網友回復：

您的服務器正在偵聽本地主機，但客戶端正在嘗試連接到 server.aaa.com。所以你必須讓服務器監聽server.aaa.com或0.0.0.0。

標籤：javascript 节点.js ssl socket.io

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