📜  Node.js tlsSocket.getProtocol() 方法

📅  最后修改于: 2022-05-13 01:56:52.882000             🧑  作者: Mango

Node.js tlsSocket.getProtocol() 方法

tlsSocket.getProtocol()是 tls 模块中 TLSSocket 类的内置应用程序编程接口,用于返回包含当前连接的协商 SSL/TLS 协议版本的字符串。

句法:

const tlsSocket.getProtocol() 

参数:此方法不接受任何参数。

返回值:此方法返回一个字符串,其中包含当前连接的协商 SSL/TLS 协议版本。

如何生成私钥和公共证书?

  1. 私钥:打开记事本并复制粘贴以下密钥:
    -----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-----

    将文件另存为private-key.pem

  2. 公共证书:打开记事本并复制粘贴以下密钥:
    -----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-----

    将文件另存为public-cert.pem

示例 1:文件名:index.js

// Node.js program to demonstrate the
// tlsSocket.getProtocol() 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
var client = tls.connect(PORT, HOST, options, function() {
    
  // Getting tsl protocol version
  // by using tlsSocket.getProtocol() method
  value = client.getProtocol();
  
  client.write("Protocol : " + value);
    
  client.end(() => {
    console.log("Client closed successfully");
  });
});

输出:

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

Received: Protocol : TLSv1.3
Server closed successfully

示例 2:文件名:index.js

// Node.js program to demonstrate the
// tlsSocket.getProtocol() 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) {
  
  // Getting tsl protocol version
  // by using tlsSocket.getProtocol() method
  value = socket.getProtocol();
  
  socket.write("Protocol : " + value);
  
  // 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
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: Protocol : TLSv1.3
client closed successfully
Server closed successfully

参考: https://nodejs.org/dist/latest-v12.x/docs/api/tls.html#tls_tlssocket_getprotocol