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(PHP ActiveX) Stream a file to compression to encryption to an output file.Runs a chain of streams to read a source file, compress, encrypt, and write an output file.
<?php // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Initialize the compression object. $compress = new COM("Chilkat_9_5_0.Compression"); $compress->Algorithm = 'deflate'; // Initialize the encryption object. $crypt = new COM("Chilkat_9_5_0.Crypt2"); $crypt->CryptAlgorithm = 'chacha20'; $crypt->KeyLength = 256; $crypt->EncodingMode = 'hex'; $ivHex = '000000000000000000000002'; $crypt->SetEncodedIV($ivHex,'hex'); $crypt->InitialCount = 42; $keyHex = '1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0'; $crypt->SetEncodedKey($keyHex,'hex'); // Setup the streams. // streamC is for compression $streamC = new COM("Chilkat_9_5_0.Stream"); // streamE is for encryption $streamE = new COM("Chilkat_9_5_0.Stream"); // The source for the compressor is a file. $streamC->SourceFile = 'qa_data/hamlet.xml'; // The source for the encryptor is the output of the compressor stream. $success = $streamE->SetSourceStream($streamC); // The sink for the encryptor is the output file. $streamE->SinkFile = 'qa_output/compressed_encrypted.dat'; // Start the compression and encryption streams in background threads.. // taskC is a Chilkat_9_5_0.Task $taskC = $compress->CompressStreamAsync($streamC); // taskE is a Chilkat_9_5_0.Task $taskE = $crypt->EncryptStreamAsync($streamE); $success = $taskC->Run(); $success = $taskE->Run(); // Let the streams run until finished. // Let's make sure the background task finished. // It should already be the case that the task is finished. while ((($taskE->Finished != 1) or ($taskC->Finished != 1))) { $taskE->SleepMs(20); } // check for success.. if ($taskE->TaskSuccess != 1) { print 'async encryption failed:' . "\n"; print $taskE->ResultErrorText . "\n"; $success = 0; } // check for success.. if ($taskC->TaskSuccess != 1) { print 'async compression failed:' . "\n"; print $taskC->ResultErrorText . "\n"; $success = 0; } // Load the file that was produced and decrypt/decompress to verify. $binData = new COM("Chilkat_9_5_0.BinData"); $success = $binData->LoadFile('qa_output/compressed_encrypted.dat'); $success = $crypt->DecryptBd($binData); $success = $compress->DecompressBd($binData); // binData should contain the original data.. $success = $binData->WriteFile('qa_output/original_hamlet.xml'); print 'Finished.' . "\n"; ?> |
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