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PHP ActiveX Examples

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(PHP ActiveX) IMAP Download and Verify Signed MIME

Downloads the unmodified MIME of a digitally signed email, saves the .p7s signature (and other MIME parts), then loads the email into a Chilkat email object (which unwraps the S/MIME and verifies the signature) and then saves attachments (if the MIME parts were not already saved).

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

$imap = new COM("Chilkat_9_5_0.Imap");

// Connect to an IMAP server.
// Use TLS
$imap->Ssl = 1;
$imap->Port = 993;
$success = $imap->Connect('imap.someMailServer.com');
if ($success != 1) {
    print $imap->LastErrorText . "\n";
    exit;
}

$success = $imap->Login('myLogin','myPassword');
if ($success != 1) {
    print $imap->LastErrorText . "\n";
    exit;
}

// Select an IMAP mailbox
$success = $imap->SelectMailbox('Inbox');
if ($success != 1) {
    print $imap->LastErrorText . "\n";
    exit;
}

// Download the 1st email (as MIME) in the Inbox by sequence number.
$sbMime = new COM("Chilkat_9_5_0.StringBuilder");
$success = $imap->FetchSingleAsMimeSb(1,0,$sbMime);
if ($success != 1) {
    print $imap->LastErrorText . "\n";
    exit;
}

// Load it into a MIME object and check to see if it is signed
$mime = new COM("Chilkat_9_5_0.Mime");
$mime->LoadMimeSb($sbMime);
$alreadySavedParts = 0;
if ($mime->ContainsSignedParts() == 1) {

    // This will save the .p7s and other parts...
    // sa is a Chilkat_9_5_0.StringArray
    $sa = $mime->ExtractPartsToFiles('qa_output');
    if ($mime->LastMethodSuccess == 1) {
        $numFiles = $sa->Count;
        $i = 0;
        while ($i < $numFiles) {
            print 'Created: ' . $sa->getString($i) . "\n";
            $i = $i + 1;
        }

        $alreadySavedParts = 1;
    }

}

// Load the MIME into an Email object.  This unwraps the security layers and verifies signatures.
$email = new COM("Chilkat_9_5_0.Email");
$email->SetFromMimeSb($sbMime);

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

    print 'This email was signed.' . "\n";

    // Check to see if the signatures were verified.
    if ($email->SignaturesValid == 1) {
        print 'Digital signature(s) verified.' . "\n";

        print 'Signer: ' . $email->SignedBy . "\n";

        // The certificate used for signing may be obtained
        // by calling email.GetSignedByCert.
        // cert is a Chilkat_9_5_0.Cert
        $cert = $email->GetSignedByCert();
        if ($email->LastMethodSuccess != 1) {
            print 'Failed to get signing certificate object.' . "\n";
        }
        else {
            print 'Signing cert: ' . $cert->SubjectCN . "\n";

        }

    }

}
else {
    print 'Digital signature verification failed.' . "\n";
}

if ($alreadySavedParts != 1) {
    $email->SaveAllAttachments('qa_output');
}


?>

 

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