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(PHP ActiveX) IMAP Download and Verify Signed MIMEDownloads 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).
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Imap') $imap = new COM("Chilkat.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. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbMime = new COM("Chilkat.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 // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Mime') $mime = new COM("Chilkat.Mime"); $mime->LoadMimeSb($sbMime); $alreadySavedParts = 0; if ($mime->ContainsSignedParts() == 1) { // This will save the .p7s and other parts... // sa is a Chilkat.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. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Email') $email = new COM("Chilkat.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.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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