PHP ActiveX Requires Chilkat v11.0.0+

POP3 Read S/MIME Encrypted Email

Read S/MIME encrypted email. PHP ActiveX

<?php

$success = 0;

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

//  The mailman object is used for receiving (POP3) 
//  and sending (SMTP) email.
$mailman = new COM("Chilkat.MailMan");

//  Set the POP3 server's hostname
$mailman->MailHost = 'pop.example.com';

//  Set the POP3 login/password.
$mailman->PopUsername = 'myLogin';
$mailman->PopPassword = 'myPassword';

//  If running on Microsoft Windows, the Chilkat mailman
//  will automatically search the registry-based certificate stores
//  for matching certificates and private keys required for
//  decryption.  However, on Linux, MAX OS X, and other
//  operating systems, no such thing exists.  Therefore, you'll 
//  need to specify one or more PFX (.p12 / .pfx) files as
//  sources for locating the certs required for decyrption.
$success = $mailman->AddPfxSourceFile('/pfxFiles/certs_and_keys_1.pfx','pfxPassword1');
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

$success = $mailman->AddPfxSourceFile('/pfxFiles/certs_and_keys_2.pfx','pfxPassword2');
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

//  ...
//  Note: On MS Windows, it is not required to provide PFX sources
//  if the needed certs and private keys are already installed
//  on the system (in the registry-based certificate stores).

//  Copy the all email from the user's POP3 mailbox 
//  into a bundle object.  The email remains on the server.
$bundle = new COM("Chilkat.EmailBundle");
$keepOnServer = 1;
$headersOnly = 0;
//  Irrelevent because we are NOT downloading headers-only
$numBodyLines = 0;
$success = $mailman->FetchAll($keepOnServer,$headersOnly,$numBodyLines,$bundle);
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

//  S/MIME security envelopes are automatically "unwrapped" 
//  when a message is retrieved from the server. Signed emails are automatically verified, and 
//  encrypted emails are automatically decrypted, restoring the email to the original state before 
//  signing and/or encrypting. Information about the signing and encrypting certificates can be 
//  retrieved from the Email object (methods: GetSignedByCert, GetEncryptedByCert; 
//  properties: SignedBy, EncryptedBy, SignaturesValid, Decrypted, ReceivedSigned, 
//  ReceivedEncrypted).

//  Loop over the bundle
$email = new COM("Chilkat.Email");
$i = 0;
while ($i < $bundle->MessageCount) {

    $bundle->EmailAt($i,$email);

    print $email->From . "\n";
    print $email->Subject . "\n";

    //  At this point, if the email was signed and/or encrypted, it is already "unwrapped", i.e.
    //  the email is already decrypted and in a state as if it were never signed or encrypted.
    //  You may check to see if the email was received encrypted or signed, and if so,
    //  whether it was successfully unwrapped and who signed or encrypted it:
    if ($email->ReceivedEncrypted == 1) {

        print 'This email was encrypted when received.' . "\n";
        if ($email->Decrypted == 1) {
            print 'This email was successfully decrypted.  It was encrypted by:' . "\n";
            print $email->EncryptedBy . "\n";
        }
        else {
            print 'This email was not decrypted.' . "\n";
        }

    }

    if ($email->ReceivedSigned == 1) {

        print 'This email was signed when received.' . "\n";
        if ($email->SignaturesValid == 1) {
            print 'The signature was verified.  It was signed by:' . "\n";
            print $email->SignedBy . "\n";
        }
        else {
            print 'The signature verification failed.' . "\n";
        }

    }

    //  The email's body, HTML body, attachments, etc.
    //  are decrypted and available just like any non-encrypted email.

    print '--' . "\n";

    $i = $i + 1;
}


?>