Node.js tlsSocket.getSession() 方法

tlsSocket.getSession()是 tls 模块中 TLSSocket 类的内置应用程序编程接口，用于返回 TLS 会话数据，如果没有协商会话，则为 undefined。

句法：

const tlsSocket.getSession()

参数：此方法不接受任何参数。

返回值：此方法返回 TLS 会话数据，如果没有协商会话，则返回 undefined。

如何生成私钥和公共证书？

私钥：打开记事本并复制粘贴以下密钥：

将文件另存为private-key.pem

公共证书：打开记事本并复制粘贴以下密钥：

将文件另存为public-cert.pem

示例 1：文件名：index.js

// Node.js program to demonstrate the
// tlsSocket.getSession() 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 session date
  // by using tlsSocket.getSession() method
  value = client.getSession();
  
  client.write("TLS session data : " + value.toJSON().data);
   
  client.end(() => {
     console.log("Client closed successfully");
  });
});

输出：

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

Received: TLS session data : 48, 130, 2, 173, 2, 1, 1, 2, 2, 3, 4, 4, 2, 19, 2, 4, 0, 4, 0, 161, 6, 2, 4, 95, 94, 43, 77, 162, 4, 2, 2, 28, 32, 163, 130, 2, 131, 48, 130, 2, 127, 48, 130, 1, 232, 2, 9, 0, 241, 197, 229, 240, 247, 94, 24, 216, 48, 13, 6, 9, 42, 134, …… 3, 2, 1, 18
Server closed successfully

编程需要懂一点英语

示例 2：文件名：index.js

// Node.js program to demonstrate the
// tlsSocket.getSession() 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 session date
  // by using tlsSocket.getSession() method
  value = socket.getSession();
  
  socket.write("TLS session data : " + value.toJSON().data);
  
  // 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: TLS session data : 48, 65, 2, 1, 1, 2, 2, 3, 4, 4, 2, 19, 2, 4, 0, 4, 0, 161, 6, 2, 4, 95, 94, 44, 214, 162, 4, 2, 2, 28, 32, 164, 34, 4, 32, 102, 101, 54, 55, 53, 57, 51, 53, 52, 54, 98, 48, 57, 49, 102, 51, 102, 57, 99, 101, 49, 55, 57, 55, 99, 54, 54, 99, 54, 57, 98, 100
client closed successfully
Server closed successfully

编程需要懂一点英语

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