node . js tlssocket . setmaxsendfrage()方法
原文:https://www . geesforgeks . org/node-js-tlssocket-setmaxsendfrage-method/
tlsSocket . SetMaxSendFrame()是 TLS 模块内类 tlsSocket 的内置应用编程接口，用于设置最大 TLS 片段大小。
语法:
const tlsSocket.setMaxSendFragment(size)
参数:该方法以整数值大小为参数。
返回值:如果设置成功则返回真，否则返回假。
如何生成私钥和公钥证书？
- 私钥:打开记事本，复制粘贴以下密钥:
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
现在将文件名保存为私钥. pem
- Public certificate: Open the notepad and copy and paste the following keys:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
现在将文件名保存为公共证书
示例 1: 文件名:index . js
Javascript
// Node.js program to demonstrate the
// tlsSocket.setMaxSendFragment() 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() {
// 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:index . js
Javascript
// Node.js program to demonstrate the
// tlsSocket.setMaxSendFragment() 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")
// stoping 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 fragment is set
client closed successfully
Server closed successfully
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