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(PHP ActiveX) Upload File in Blocks (with Content-MD5 header) and Commit the Block ListDemonstrates how to upload a file in blocks and then commit the block list. This example includes a Content-MD5 header for each block.
<?php // Azure Blob Service Example: Upload a file in blocks, and then commit the block list. // See also: https://msdn.microsoft.com/en-us/library/azure/dd135726.aspx // 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.Rest') $rest = new COM("Chilkat.Rest"); // Connect to the Azure Storage Blob Service $bTls = 1; $port = 443; $bAutoReconnect = 1; // In this example, the storage account name is "chilkat". $success = $rest->Connect('chilkat.blob.core.windows.net',$port,$bTls,$bAutoReconnect); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } // Provide Azure Cloud credentials for the REST call. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.AuthAzureStorage') $azAuth = new COM("Chilkat.AuthAzureStorage"); $azAuth->AccessKey = 'AZURE_ACCESS_KEY'; // The account name used here should match the 1st part of the domain passed in the call to Connect (above). $azAuth->Account = 'chilkat'; $azAuth->Scheme = 'SharedKey'; $azAuth->Service = 'Blob'; // This causes the "x-ms-version: 2021-08-06" header to be automatically added. $azAuth->XMsVersion = '2021-08-06'; $success = $rest->SetAuthAzureStorage($azAuth); // Note: The application does not need to explicitly set the following // headers: Content-Length, x-ms-date, Authorization. These headers // are automatically set by Chilkat. // As the blocks are uploaded, we'll keep an XML block list for the subsequent commit.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); $xml->Tag = 'BlockList'; // Any type of file can be uploaded in this way. It can a text file, binary file, anything... // This example will upload an XML file that is approximately 275K in size. It can be downloaded // at http://www.chilkatsoft.com/hamlet.xml // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.FileAccess') $fac = new COM("Chilkat.FileAccess"); $success = $fac->OpenForRead('qa_data/xml/hamlet.xml'); // Assuming success for the example.. // We'll upload in 16K blocks (normally a program would upload in larger block sizes than this, // but this is just an example...) $blockSize = 16384; // How many 16K blocks? (Including 1 for the last partial block) $numBlocks = $fac->GetNumBlocks($blockSize); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2') $crypt = new COM("Chilkat.Crypt2"); $crypt->HashAlgorithm = 'md5'; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbResponseBody = new COM("Chilkat.StringBuilder"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $uriPath = new COM("Chilkat.StringBuilder"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $dataBlock = new COM("Chilkat.BinData"); $i = 0; while ($i < $numBlocks) { $dataBlock->Clear(); $success = $fac->ReadBlockBd($i,$blockSize,$dataBlock); if ($success == 0) { print $fac->LastErrorText . "\n"; exit; } // Generate a base64 block ID. // (Chilkat provides a helper method named GenBlockId to make this easy) // A pre-base64 encoded block ID length of 4 is sufficient in this case because // this file certainly won't have more than 99,999 blocks.. $blockId = $fac->genBlockId($i,4,'base64'); // Add this blockId to the list of blocks to be committed. $xml->NewChild2('Latest',$blockId); // Build the URI path $uriPath->Clear(); $success = $uriPath->Append('/mycontainer/hamlet.xml?comp=block&blockId='); $success = $uriPath->Append($blockId); $contentMd5 = $crypt->hashBdENC($dataBlock); $rest->AddHeader('Content-MD5',$contentMd5); // Upload this block.. $sbResponseBody->Clear(); $success = $rest->FullRequestBd('PUT',$uriPath->getAsString(),$dataBlock,$sbResponseBody); if ($success == 0) { print $rest->LastErrorText . "\n"; exit; } // Verify that we received a 201 status code. if ($rest->ResponseStatusCode != 201) { // Examine the request/response to see what happened. print 'response status code = ' . $rest->ResponseStatusCode . "\n"; print 'response status text = ' . $rest->ResponseStatusText . "\n"; print 'response header: ' . $rest->ResponseHeader . "\n"; print 'response body (if any): ' . $sbResponseBody->getAsString() . "\n"; print '---' . "\n"; print 'LastRequestStartLine: ' . $rest->LastRequestStartLine . "\n"; print 'LastRequestHeader: ' . $rest->LastRequestHeader . "\n"; exit; } $i = $i + 1; } $fac->FileClose(); // Now commit the blocks. // Let's have a look at the XML that will commit the blocks: $xmlStr = $xml->getXml(); print $xmlStr . "\n"; // The XML will look like this: // <?xml version="1.0" encoding="utf-8" ?> // <BlockList> // <Latest>MDAwMA==</Latest> // <Latest>MDAwMQ==</Latest> // <Latest>MDAwMg==</Latest> // <Latest>MDAwMw==</Latest> // <Latest>MDAwNA==</Latest> // <Latest>MDAwNQ==</Latest> // <Latest>MDAwNg==</Latest> // <Latest>MDAwNw==</Latest> // <Latest>MDAwOA==</Latest> // <Latest>MDAwOQ==</Latest> // <Latest>MDAxMA==</Latest> // <Latest>MDAxMQ==</Latest> // <Latest>MDAxMg==</Latest> // <Latest>MDAxMw==</Latest> // <Latest>MDAxNA==</Latest> // <Latest>MDAxNQ==</Latest> // <Latest>MDAxNg==</Latest> // <Latest>MDAxNw==</Latest> // </BlockList> // -------------------------------------------------------------------------- // IMPORTANT: Remove the Content-MD5 header previously set in the loop above. // -------------------------------------------------------------------------- $rest->RemoveHeader('Content-MD5'); // Send the PUT Block List... $responseStr = $rest->fullRequestString('PUT','/mycontainer/hamlet.xml?comp=blocklist',$xmlStr); if ($rest->LastMethodSuccess != 1) { print $rest->LastErrorText . "\n"; exit; } // When successful, the Azure Storage service will respond with a 201 response status code, // with no response body. if ($rest->ResponseStatusCode != 201) { // Examine the request/response to see what happened. print 'response status code = ' . $rest->ResponseStatusCode . "\n"; print 'response status text = ' . $rest->ResponseStatusText . "\n"; print 'response header: ' . $rest->ResponseHeader . "\n"; print 'response body (if any): ' . $responseStr . "\n"; print '---' . "\n"; print 'LastRequestStartLine: ' . $rest->LastRequestStartLine . "\n"; print 'LastRequestHeader: ' . $rest->LastRequestHeader . "\n"; exit; } print 'Success.' . "\n"; ?> |
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