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(PHP Extension) Creates an AES Encrypted Zip with One File UnencryptedDemonstrates how to create an AES encrypted zip, but also containing one file that is not encrypted. The way we do it is to first create an AES encrypted zip in the usual way, and then we append an unecrypted file to it.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $zip = new CkZip(); $success = $zip->NewZip('qa_output/aes_with_one_unencrypted.zip'); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } // Set properties to indicate that the Zip should be // AES encrypted. // A value of 4 indicates WinZip compatible AES encryption. $zip->put_Encryption(4); // Key length can be 128, 192, or 256 bits. $zip->put_EncryptKeyLength(128); // Set the password for AES encryption: $zip->put_EncryptPassword('myPassword'); // Exclude the file helloWorld.txt // This file will be added unencrypted to the .zip $saExclusions = new CkStringArray(); $saExclusions->Append('helloWorld.txt'); $zip->SetExclusions($saExclusions); $zip->put_VerboseLogging(true); // Add a directory tree to be zipped. $recurse = true; // Append from a directory relative to our current working directory. $zip->put_AppendFromDir('qa_data/filesToZip'); $success = $zip->AppendFiles('*',$recurse); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } print $zip->lastErrorText() . "\n"; // Writes qa_output/aes_with_one_unencrypted.zip $success = $zip->WriteZipAndClose(); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } // ---------------------------------------------- // At this point, we have an encrypted .zip with all // files except for helloWorld.txt. // We'll add helloWorld.txt (unencrypted) to the .zip we just created. // The NewZip method only initializes the Zip object -- it does // not create or write a .zip file. $success = $zip->NewZip('notUsed.zip'); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } $saExclusions->Clear(); $zip->SetExclusions($saExclusions); // No encryption. $zip->put_Encryption(0); $zip->put_AppendFromDir('qa_data/filesToZip'); // Add a reference to a file. This is the file that will // be added to a already-existing .zip. $saveExtraPath = false; $success = $zip->AppendOneFileOrDir('helloWorld.txt',$saveExtraPath); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } // Appends the contents of the zip object to the preExisting.zip // zip archive. preExisting.zip is opened, and the files // referenced by this zip object are streamed in, compressed, // and appended to the end of the archive. $success = $zip->QuickAppend('qa_output/aes_with_one_unencrypted.zip'); if ($success != true) { print $zip->lastErrorText() . "\n"; exit; } print 'Success!' . "\n"; ?> |
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