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(PHP ActiveX) Combine Timestamp Reply and Content File into a TimeStampDataDemonstrates how to combine a timestamp reply (RFC 3161) with a data file (any type of file) to create a TimeStampData structure (RFC 5544).
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Also see this example: // Send a TimeStamp Request to a TimeStamp Authority and get the Response // Load a timestamp reply file // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bdTsr = new COM("Chilkat.BinData"); $success = $bdTsr->LoadFile('qa_data/tsd/sample.tsr'); if ($success != 1) { print 'Failed to load timestamp reply file.' . "\n"; exit; } // Load the tsr into an ASN.1 object. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Asn') $asnTsr = new COM("Chilkat.Asn"); $success = $asnTsr->LoadEncoded($bdTsr->getEncoded('base64'),'base64'); if ($success != 1) { print $asnTsr->LastErrorText . "\n"; exit; } // Get the timestamp reply as XML. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xmlTsr = new COM("Chilkat.Xml"); $xmlTsr->LoadXml($asnTsr->asnToXml()); // The timestamp reply XML begins like this: // We'll want to remove the 1st "sequence" subtree. // <?xml version="1.0" encoding="utf-8"?> // <sequence> // <sequence> <---- Remove this sub-tree. // <int>00</int> // <sequence> // <utf8>Operation Okay</utf8> // </sequence> // </sequence> // <sequence> // <oid>1.2.840.113549.1.7.2</oid> // <contextSpecific tag="0" constructed="1"> // ... // Remove the 1st sub-tree.. $xmlTsr->RemoveChildByIndex(0); // In this example, the data file we're combining with the timestamp into a timestampData is a .p7m. // However, it can be any type of file (text or binary), it doesn't matter.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bdContent = new COM("Chilkat.BinData"); $success = $bdContent->LoadFile('qa_data/tsd/sample.p7m'); if ($success != 1) { print 'Failed to load content file.' . "\n"; exit; } // Begin building the TimeStampData. // We'll build as XML and then convert to ASN.1 // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); $xml->Tag = 'sequence'; $xml->UpdateChildContent('oid','1.2.840.113549.1.9.16.1.31'); $xml->UpdateAttrAt('contextSpecific',1,'tag','0'); $xml->UpdateAttrAt('contextSpecific',1,'constructed','1'); $xml->UpdateChildContent('contextSpecific|sequence|int','01'); $xml->UpdateChildContent('contextSpecific|sequence|octets',$bdContent->getEncoded('base64')); $xml->UpdateAttrAt('contextSpecific|sequence|contextSpecific',1,'tag','0'); $xml->UpdateAttrAt('contextSpecific|sequence|contextSpecific',1,'constructed','1'); // xContext is a Chilkat.Xml $xContext = $xml->GetChildWithTag('contextSpecific|sequence|contextSpecific'); $xContext->AddChildTree($xmlTsr); // Convert the XML to ASN.1 // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Asn') $tsd = new COM("Chilkat.Asn"); $tsd->LoadAsnXml($xml->getXml()); // Write the timestamped data to a file. $success = $tsd->WriteBinaryDer('qa_output/sample.tsd'); // Alternatively, get the tsd ASN.1 as base64.. $tsdBase64 = $tsd->getEncodedDer('base64_mime'); print $tsdBase64 . "\n"; ?> |
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