Node.js server.addContext()方法

原文:https://www . geesforgeks . org/node-js-server-addcontext-method/

server.addContext() 是 tls 模块内一个类 Socket 的内置应用编程接口,用于添加安全上下文供客户端使用。

语法:

server.addContext(hostname, context)

参数:该方法将以下参数作为参数:

  • Host name: The server name that represents the host name.
  • Context: Any attribute from the tls.createSecureContext () option parameter.

返回值:此方法不返回值。

如何生成私钥和公钥证书?

  1. 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-----

    将文件另存为私钥. pem

  2. 公钥证书:打开记事本复制粘贴如下密钥:

    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-----

    将文件另存为公钥证书. pem

示例 1: 文件名:index.js

// Node.js program to demonstrate the
// server.setBroadcast() 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) {

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

});

// Adding context into the server
server.addContext('127.0.0.2', options.key);
console.log("context is added");

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

// When an error occurs, show it.
server.on("error", function (error) {

    console.error(error);
    // Close the connection after the
    // error occurred.
    // server.destroy();
});

server.on("end", () => {
    server.end();
    //server.destroy();
})

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

    // Check if the authorization worked
    if (client.authorized) {
        console.log("Connection authorized"
        + " by a Certificate Authority.");
    } else {
        console.log("Connection not authorized: "
                + client.authorizationError)
    }

    // Send a friendly message
    client.write(
        "I am the client sending you a message.");
    client.end();
});

client.on("close", function () {
    console.log("Connection closed");
});

// When an error occurs, show it.
client.on("error", function (error) {

    console.error(error);

    // Close the connection after
    // the error occurred.
    client.destroy();
});

输出:

context is added
I'm listening at 127.0.0.1, on port 1337
Connection not authorized: DEPTH_ZERO_SELF_SIGNED_CERT

Received: I am the client sending you a message.
Connection closed

示例 2: 文件名:

// Node.js program to demonstrate the
// server.addcontext() 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) {

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

// Adding context into the server
// by using addContext() method
server.addContext('127.0.0.2', options.key);
console.log("context is added");

// Start listening on a specific
// port and address
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 () {

    // Send a friendly message
    client.write("I am the client "
        + "sending you a message.");
    client.end();
});

使用以下命令运行 index.js 文件:

node index.js

输出:

context is added
I'm listening at 127.0.0.1, on port 1337

Received: I am the client sending you a message.

参考:https://nodejs . org/dist/latest-v 12 . x/docs/API/TLS . html # TLS _ server _ addcontext _ hostname _ context