Node.js tls.connect()方法

原文:https://www.geeksforgeeks.org/node-js-tls-connect-method/

tls.connect() 方法是 tls 模块中类 tls 的内置应用编程接口,用于创建 TLS。TLSSocket 对象。

语法:

const tls.connect(port[, host][, options][, callback])

参数:这个方法接受上面提到的和下面描述的四个参数:

  • Port: is the port number.
  • Host: is the name of the host.
  • Options: These options can be enableTrace, host, port, path, socket, allowHalfOpen, etc.
  • Callback: is a callback function for further operation.

返回值:这个方法返回 tls.TLSSocket 的对象

如何生成私钥和公钥证书?

  • Private key: Open notepad and copy paste the following key:

    ```js -----BEGIN RSA PRIVATE KEY----- MIICXQIBAAKBgQC38R9wXcUbhOd44FavgmE5R3K4JeYOHLnI7dUq1B8/Gv7l3SOg JKef/m9gM1KvUx951mapXGtcWgwB08J3vUE2YOZ4tWJArrVZES0BI/RmFAyhQFP5 HcWl3LSM9LRihP98F33oIkKaCxA5LxOrkgpV4HrUzIKTABDYah7RPex1WQIDAQAB AoGBAIXR71xxa9gUfc5L7+TqBs+EMmrUb6Vusp8CoGXzQvRHMJCMrMFySV0131Nu o0YYRDsAh1nJefYLMNcXd1BjqI+qY8IeRsxaY+9CB2KKGVVDO2uLdurdC2ZdlWXT Vwr3dDoyR0trnXJMmH2ijTeO6bush8HuXxvxJBjvEllM5QYxAkEA3jwny9JP+RFu 0rkqPBe/wi5pXpPl7PUtdNAGrh6S5958wUoR4f9bvwmTBv1nQzExKWu4EIp+7vjJ fBeRZhnBvQJBANPjjge8418PS9zAFyKlITq6cxmM4gOWeveQZwXVNvav0NH+OKdQ sZnnDiG26JWmnD/B8Audu97LcxjxcWI8Jc0CQEYA5PhLU229lA9EzI0JXhoozIBC TlcKFDuLm88VSmlHqDyqvF9YNOpEdc/p2rFLuZS2ndB4D+vu6mjwc5iZ3HECQCxy GBHRclQ3Ti9w76lpv+2kvI4IekRMZWDWnnWfwta+DGxwCgw2pfpleBZkWqdBepb5 JFQbcxQJ0wvRYXo8qaUCQQCgTvWswBj6OTP7LTvBlU1teAN2Lnrk/N5AYHZIXW6m nUG9lYvH7DztWDTioXMrruPF7bdXfZOVJD8t0I4OUzvC -----END RSA PRIVATE KEY-----

    ```

    现在将文件名保存为私钥. pem

  • 公共证书:打开记事本复制粘贴以下密钥:

    ```js -----BEGIN CERTIFICATE----- MIICfzCCAegCCQDxxeXw914Y2DANBgkqhkiG9w0BAQsFADCBgzELMAkGA1UEBhMC SU4xEzARBgNVBAgMCldlc3RiZW5nYWwxEDAOBgNVBAcMB0tvbGthdGExFDASBgNV BAoMC1BhbmNvLCBJbmMuMRUwEwYDVQQDDAxSb2hpdCBQcmFzYWQxIDAeBgkqhkiG 9w0BCQEWEXJvZm9mb2ZAZ21haWwuY29tMB4XDTIwMDkwOTA1NTExN1oXDTIwMTAw OTA1NTExN1owgYMxCzAJBgNVBAYTAklOMRMwEQYDVQQIDApXZXN0YmVuZ2FsMRAw DgYDVQQHDAdLb2xrYXRhMRQwEgYDVQQKDAtQYW5jbywgSW5jLjEVMBMGA1UEAwwM Um9oaXQgUHJhc2FkMSAwHgYJKoZIhvcNAQkBFhFyb2ZvZm9mQGdtYWlsLmNvbTCB nzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAt/EfcF3FG4TneOBWr4JhOUdyuCXm Dhy5yO3VKtQfPxr+5d0joCSnn/5vYDNSr1MfedZmqVxrXFoMAdPCd71BNmDmeLVi QK61WREtASP0ZhQMoUBT+R3Fpdy0jPS0YoT/fBd96CJCmgsQOS8Tq5IKVeB61MyC kwAQ2Goe0T3sdVkCAwEAATANBgkqhkiG9w0BAQsFAAOBgQATe6ixdAjoV7BSHgRX bXM2+IZLq8kq3s7ck0EZrRVhsivutcaZwDXRCCinB+OlPedbzXwNZGvVX0nwPYHG BfiXwdiuZeVJ88ni6Fm6RhoPtu2QF1UExfBvSXuMBgR+evp+e3QadNpGx6Ppl1aC hWF6W2H9+MAlU7yvtmCQQuZmfQ== -----END CERTIFICATE-----

    ```

    现在将文件名保存为公钥. pem

示例 1: 文件名:index.js

// Node.js program to demonstrate the
// tls.connect() method
var tls = require('tls'),
    fs = require('fs'),

// Port and host address for server    
PORT = 1337,
HOST = '127.0.0.1',
value = null;

// Private key and public certificate for access
var options = {
  key: fs.readFileSync('private-key.pem'),
  cert: fs.readFileSync('public-cert.pem'),
  rejectUnauthorized: false
};

// Creating and initializing server
var server = tls.createServer(options, function(socket) {

  // Print the data that we received
  socket.on('data', function(data) {
     console.log('\nReceived: %s ',
     data.toString().replace(/(\n)/gm, ""));
  });

  // Stopping the server
  // by using the close() method
  server.close(() => {
    console.log("Server closed successfully");
  });
});

// Start listening on a specific port and address
// by using listen() method
server.listen(PORT, HOST, function() {
  console.log("I'm listening at %s, on port %s", HOST, PORT);
});

// Creating and initializing client
// by using tls.connect() method
var client = tls.connect(PORT, HOST, options, function() {

  // Setting maximum send fragment limit
  // by using tlsSocket.setMaxSendFragment() method
  value = client.setMaxSendFragment(16384);

  if(value)
     client.write("tls fragment is set");
  else
     client.write("tls fragment is not set")

  client.end(() => {
     console.log("Client closed successfully");
  });

});

使用以下命令运行 index.js 文件:

node index.js

输出:

I'm listening at 127.0.0.1, on port 1337
Client closed successfully

Received: tls fragment is set
Server closed successfully

示例 2: 文件名:

// Node.js program to demonstrate the
// tls.connect() method
var tls = require('tls'),
    fs = require('fs'),

// Port and host address for server    
PORT = 1337,
HOST = '127.0.0.1';

// Private key and public certificate for access
var options = {
  key: fs.readFileSync('private-key.pem'),
  cert: fs.readFileSync('public-cert.pem'),
  rejectUnauthorized: false
};

// Creating and initializing server
var server = tls.createServer(options, function(socket) {

  // Setting maximum send fragment limit
  // by using tlsSocket.setMaxSendFragment() method
  value = socket.setMaxSendFragment(16384);

  if(value)
    socket.write("tls fragment is set");
  else
    socket.write("tls fragment is not set")

  // Stopping the server
  // by using the close() method
  server.close(() => {
     console.log("Server closed successfully")
  });
});

// Start listening on a specific port and address
// by using listen() method
server.listen(PORT, HOST, function() {
  console.log("I'm listening at %s, on port %s", HOST, PORT);
});

// Creating and initializing client
// by using tls.connect() method
var client = tls.connect(PORT, HOST, options, function() {
   console.log("client is connected");
});

client.on("data", function(data) {

  console.log('Received: %s',
  data.toString().replace(/(\n)/gm, ""));

  // Close the connection after receiving the message
  client.end(() => {
     console.log("client closed successfully")
  });

});

使用以下命令运行 index.js 文件:

node index.js

输出:

I'm listening at 127.0.0.1, on port 1337
client is connected
Received: tls fragment is set
client closed successfully
Server closed successfully

参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/TLS . html # TLS _ TLS _ connect _ port _ host _ options _ callback