Rust

Send Signed and Encrypted EDI Email (EDIFACT)

Demonstrates how to send a signed and encrypted EDI email (EDIFACT email). Rust

// 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.
let mailman = chilkat::MailMan::new();

//  Create a new email object
let email = chilkat::Email::new();

//  Build the basic EDI email where the body is the EDIFACT message:
let edi_msg = "UNB+IATB:1+6XPPC ...".to_string();
let name = "something".to_string();
let filename = "something".to_string();
let charset = "iso-8859-1".to_string();
email.set_edifact_body(&edi_msg, &name, &filename, &charset);

email.set_subject("This is the subject");
email.set_from("Chilkat Admin <admin@chilkatsoft.com>");
let _ = email.add_to("Chilkat Support", "support@chilkatsoft.com").is_ok();

//  Indicate that the email should be sent signed.
email.set_send_signed(true);

//  Tell the mailman to use a PFX file as a source for locating
//  the certificate and private key required for signing.
//  The certificate chosen for signing will be the one that
//  matches the sender's email address, which also has
//  a private key.  All intermediate certs in the chain of
//  authentication, up to and including the root, will
//  be included in the signature.
if mailman.add_pfx_source_file("/pfx_files/myCertAndPrivateKey.pfx", "secret").is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

//  Load the .cer file into a certificate object.
//  When sending S/MIME encrypted email, it is the recipient's
//  certificate that is used for encryption.  Only the public key
//  is needed to encrypt.  The recipient is the only
//  one possessing the private key, and therefore is the only
//  one able to decrypt.
let cert = chilkat::Cert::new();
if cert.load_from_file("/certs/recipientCert.cer").is_err() {
    println!("{}", cert.last_error_text());
    return;
}

//  Indicate that the email is to be sent encrypted.
email.set_send_encrypted(true);

//  Indicate that we want 192-bit 3DES encryption:
email.set_pkcs7_crypt_alg("3des");
email.set_pkcs7_key_length(192);

//  Specify the certificate to be used for encryption.
let _ = email.set_encrypt_cert(&cert).is_ok();

//  Tell the mailman to use an opaque signature (as opposed to a detached signature)
mailman.set_opaque_signing(true);

//  SMTP server (use your settings and refer to the online
//  reference  documentation for more options)
mailman.set_smtp_host("smtp.mymailserver.com");
mailman.set_smtp_username("myLogin");
mailman.set_smtp_password("myPassword");
mailman.set_smtp_port(587);
mailman.set_start_tls(true);

//  Send the signed/encrypted EDI email
if mailman.send_email(&email).is_err() {
    println!("{}", mailman.last_error_text());
} else {
    println!("Mail Sent!");
}