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(PHP ActiveX) Load .crl, Convert to XML, Get Revoked Serial Numbers and DatesLoad a binary .crl file (Certificate Revocation List), converts to XML, and then gets the revoked certificate serial numbers and revocation dates. Note: This example requires Chilkat v9.5.0.77 or greater.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Load a binary .crl file. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bdCrl = new COM("Chilkat.BinData"); $success = $bdCrl->LoadFile('qa_data/crl/ca1.crl'); if ($success != 1) { print 'Failed to load CRL file.' . "\n"; exit; } // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Asn') $asn = new COM("Chilkat.Asn"); $success = $asn->LoadBd($bdCrl); if ($success != 1) { print $asn->LastErrorText . "\n"; exit; } // Convert ASN.1 to XML and load into xml and re-emit for pretty printing.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); $xml->LoadXml($asn->asnToXml()); $success = $xml->SaveXml('qa_output/crl.xml'); // Use this online tool to generate parsing code from CRL XML: // Generate Parsing Code from XML // Here's code to parse the XML. This code was generated by the above tool, // and then we modified it by removing unneeded code and changing some names // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.CkDateTime') $dt = new COM("Chilkat.CkDateTime"); $i = 0; $count_i = $xml->NumChildrenHavingTag('sequence'); while ($i < $count_i) { $xml->I = $i; $j = 0; $count_j = $xml->NumChildrenHavingTag('sequence[i]|sequence'); while ($j < $count_j) { $xml->J = $j; $k = 0; $count_k = $xml->NumChildrenHavingTag('sequence[i]|sequence[j]|sequence'); while ($k < $count_k) { $xml->K = $k; // Get the revoked certificate's serial number in uppercase hex. $revokedCertSerialHex = $xml->getChildContent('sequence[i]|sequence[j]|sequence[k]|int'); print 'serial number: ' . $revokedCertSerialHex . "\n"; // Get the date/time revoked. It will be a string formatted as "YYMMDDhhmmssZ", such as "181023093028Z" $dateRevoked = $xml->getChildContent('sequence[i]|sequence[j]|sequence[k]|utctime'); // Starting in Chilkat v9.5.0.77, date/time strings formatted as YYMMDDhhmmssZ can be parsed as follows: $dt->SetFromTimestamp($dateRevoked); print 'date revoked: ' . $dt->getAsRfc822(0) . "\n"; $k = $k + 1; } $j = $j + 1; } $i = $i + 1; } ?> |
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