Node.js

Get Certificate User Principal Name (UPN)

See more Certificates Examples

Demonstrates how to get a certificate's UPN from the SAN (Subject Alternative Name). Most certificates do not have a UPN. This example only applies to those certificates that have a User Principal Name.

Note: This example requires Chilkat v9.5.0.90 or greater due to fixes made in getting the UPN from the SAN.

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var cert = new chilkat.Cert();

    success = cert.LoadFromFile("qa_data/certs/sample.cer");
    if (success == false) {
        console.log(cert.LastErrorText);
        return;
    }

    var xml = new chilkat.Xml();
    xml.LoadXml(cert.SubjectAlternativeName);
    console.log(xml.GetXml());

    // A certificate with a User Principal Name in the SAN might have this:

    // <SubjectAltName>
    //     <rfc822Name>joe@example.com</rfc822Name>
    //     <name type="oid" oid="1.3.6.1.4.1.311.20.2.3">joe@example.com</name>
    // </SubjectAltName>

    // The OID 1.3.6.1.4.1.311.20.2.3 is for the User Principal Name.
    var upn = xml.ChilkatPath("/A/name,oid,1.3.6.1.4.1.311.20.2.3|*");
    if (xml.LastMethodSuccess == false) {
        console.log("No user principle name.");
    }
    else {
        console.log("User Principle Name = " + upn);
    }


}

chilkatExample();