(C) Send Signed and Encrypted EDI Email (EDIFACT)

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

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#include <C_CkMailMan.h>
#include <C_CkEmail.h>
#include <C_CkCert.h>

void ChilkatSample(void)
    {
    HCkMailMan mailman;
    HCkEmail email;
    const char *ediMsg;
    const char *name;
    const char *filename;
    const char *charset;
    BOOL success;
    HCkCert cert;

    // 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.
    mailman = CkMailMan_Create();

    //  Create a new email object

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

    CkEmail_putSubject(email,"This is the subject");
    CkEmail_putFrom(email,"Chilkat Admin <admin@chilkatsoft.com>");
    success = CkEmail_AddTo(email,"Chilkat Support","support@chilkatsoft.com");

    //  Indicate that the email should be sent signed.
    CkEmail_putSendSigned(email,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.
    success = CkMailMan_AddPfxSourceFile(mailman,"/pfx_files/myCertAndPrivateKey.pfx","secret");
    if (success != TRUE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
        CkMailMan_Dispose(mailman);
        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.

    success = CkCert_LoadFromFile(cert,"/certs/recipientCert.cer");
    if (success != TRUE) {
        printf("%s\n",CkCert_lastErrorText(cert));
        CkMailMan_Dispose(mailman);
        return;
    }

    //  Indicate that the email is to be sent encrypted.
    CkEmail_putSendEncrypted(email,TRUE);

    //  Indicate that we want 192-bit 3DES encryption:
    CkEmail_putPkcs7CryptAlg(email,"3des");
    CkEmail_putPkcs7KeyLength(email,192);

    //  Specify the certificate to be used for encryption.
    success = CkEmail_SetEncryptCert(email,cert);

    //  Tell the mailman to use an opaque signature (as opposed to a detached signature)
    CkMailMan_putOpaqueSigning(mailman,TRUE);

    //  SMTP server (use your settings and refer to the online
    //  reference  documentation for more options)
    CkMailMan_putSmtpHost(mailman,"smtp.mymailserver.com");
    CkMailMan_putSmtpUsername(mailman,"myLogin");
    CkMailMan_putSmtpPassword(mailman,"myPassword");
    CkMailMan_putSmtpPort(mailman,587);
    CkMailMan_putStartTLS(mailman,TRUE);

    //  Send the signed/encrypted EDI email
    success = CkMailMan_SendEmail(mailman,email);
    if (success != TRUE) {
        printf("%s\n",CkMailMan_lastErrorText(mailman));
    }
    else {
        printf("Mail Sent!\n");
    }



    CkMailMan_Dispose(mailman);

    }