(JavaScript) 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.

Note: This example requires Chilkat v10.1.2 or greater.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

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 CkMailMan();

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

// Create a new email object
var email = new CkEmail();

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 CkCertStore();
// 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 CkJsonObject();
jsonE.UpdateString("email","admin@chilkatsoft.com");

var cert = new CkCert();
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 CkCert();
// 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!");
}