(Node.js) Verify SSL Server Certificate

Demonstrates how to connect to an SSL server and verify its SSL certificate.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var socket = new chilkat.Socket();

    var ssl = true;
    var maxWaitMillisec = 20000;

    // The SSL server hostname may be an IP address, a domain name,
    // or "localhost". 
    var sslServerHost;
    sslServerHost = "www.paypal.com";
    var sslServerPort = 443;

    // Connect to the SSL server:
    var success = socket.Connect(sslServerHost,sslServerPort,ssl,maxWaitMillisec);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // cert: Cert
    var cert;

    var bExpired;
    var bRevoked;
    var bSignatureVerified;
    var bTrustedRoot;

    cert = socket.GetSslServerCert();
    if (socket.LastMethodSuccess !== false) {

        console.log("Server Certificate:");
        console.log("Distinguished Name: " + cert.SubjectDN);
        console.log("Common Name: " + cert.SubjectCN);
        console.log("Issuer Distinguished Name: " + cert.IssuerDN);
        console.log("Issuer Common Name: " + cert.IssuerCN);

        bExpired = cert.Expired;
        bRevoked = cert.Revoked;
        bSignatureVerified = cert.SignatureVerified;
        bTrustedRoot = cert.TrustedRoot;

        console.log("Expired: " + bExpired);
        console.log("Revoked: " + bRevoked);
        console.log("Signature Verified: " + bSignatureVerified);
        console.log("Trusted Root: " + bTrustedRoot);

    }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = socket.Close(20000);

}

chilkatExample();