Node.js

Send Signed Email using PFX File (long version)

Demonstrates how to send a signed email using a digital certificate w/ private key stored in a PFX file. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    // The mailman object is used for sending and receiving email.
    var mailman = new chilkat.MailMan();

    // Set the SMTP server.
    mailman.SmtpHost = "smtp.mymailserver.com";

    // Create a new email object
    var email = new chilkat.Email();

    email.Subject = "This email is signed";
    email.Body = "This is a digitally signed mail";
    email.From = "Chilkat Admin <admin@chilkatsoft.com>";
    success = email.AddTo("Chilkat Support","support@chilkatsoft.com");

    // Indicate that the email should be sent signed.
    email.SendSigned = true;

    // Load a PFX file into a certificate store object.
    // Then locate the certificate matching the  sender's email address,
    // and use it for signing.
    // (a PFX file may contain more than one certificate.)
    var certStore = new chilkat.CertStore();
    // The 1st argument is the path of the PFX file, the 2nd arg is the 
    // PFX file's password:
    success = certStore.LoadPfxFile("/pfx_files/chilkatsoft_secret.pfx","secret");
    if (success !== true) {
        console.log(certStore.LastErrorText);
        return;
    }

    // Find the certificate for the email address:
    var jsonE = new chilkat.JsonObject();
    jsonE.UpdateString("email","admin@chilkatsoft.com");

    var cert = new chilkat.Cert();
    success = certStore.FindCert(jsonE,cert);
    if (success == false) {
        console.log(certStore.LastErrorText);
        return;
    }

    // Alternatively, if a PFX file is known to contain a single certificate,
    // you may load it directly into a Chilkat certificate object.
    // This snippet of source code shows how:
    var cert2 = new chilkat.Cert();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    success = cert2.LoadPfxFile("/pfx_files/chilkatsoft_secret.pfx","secret");
    if (success !== true) {
        console.log(cert2.LastErrorText);
        return;
    }

    // This example will use the cert from the certStore...
    success = email.SetSigningCert(cert);

    // Signed email can be sent in two different ways.  
    // In a multipart/signed email, the signature is attached as a separate MIME part.
    // In an opaque email (signedData) the content of the email is encapsulated within the signature
    // and the email is sent as "application/pkcs7-mime". 
    // Either should be fine, but some receiving systems might require one or the other..
    mailman.OpaqueSigning = false;

    // Send a signed email.
    success = mailman.SendEmail(email);
    if (success !== true) {
        console.log(mailman.LastErrorText);
    }
    else {
        // The LastErrorText property provides information
        // even when successful.
        console.log(mailman.LastErrorText);
        console.log("Mail Sent!");
    }


}

chilkatExample();