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<?php /** * The Unzipper extracts .zip archives and .gz files on webservers. It's handy if you * do not have shell access. E.g. if you want to upload a lot of files * (php framework or image collection) as archive to save time. * * * @author Andreas Tasch, at[tec], attec.at * @license GNU GPL v3 * @package attec.toolbox * @version 0.0.2 Alpha */ $timestart = microtime(TRUE); $arc = new Unzipper; $timeend = microtime(TRUE); $time = $timeend - $timestart; class Unzipper { public $localdir = '.'; public $zipfiles = array(); public static $status = ''; public function __construct() { //read directory and pick .zip and .gz files if ($dh = opendir($this->localdir)) { while (($file = readdir($dh)) !== FALSE) { if (pathinfo($file, PATHINFO_EXTENSION) === 'zip' || pathinfo($file, PATHINFO_EXTENSION) === 'gz' ) { $this->zipfiles[] = $file; } } closedir($dh); if(!empty($this->zipfiles)) { self::$status = '.zip or .gz files found, ready for extraction'; } else { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error: No .zip or .gz files found.</span>'; } } //check if an archive was selected for unzipping //check if archive has been selected $input = ''; $input = strip_tags($_POST['zipfile']); //allow only local existing archives to extract if ($input !== '') { if (in_array($input, $this->zipfiles)) { self::extract($input, $this->localdir); } } } public static function extract($archive, $destination) { $ext = pathinfo($archive, PATHINFO_EXTENSION); if ($ext === 'zip') { self::extractZipArchive($archive, $destination); } else { if ($ext === 'gz') { self::extractGzipFile($archive, $destination); } } } /** * Decompress/extract a zip archive using ZipArchive. * * @param $archive * @param $destination */ public static function extractZipArchive($archive, $destination) { // Check if webserver supports unzipping. if(!class_exists('ZipArchive')) { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error: Your PHP version does not support unzip functionality.</span>'; return; } $zip = new ZipArchive; // Check if archive is readable. if ($zip->open($archive) === TRUE) { // Check if destination is writable if(is_writeable($destination . '/')) { $zip->extractTo($destination); $zip->close(); self::$status = '<span style="color:green; font-weight:bold;font-size:120%;">Files unzipped successfully</span>'; } else { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error: Directory not writeable by webserver.</span>'; } } else { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error: Cannot read .zip archive.</span>'; } } /** * Decompress a .gz File. * * @param $archive * @param $destination */ public static function extractGzipFile($archive, $destination) { // Check if zlib is enabled if(!function_exists('gzopen')) { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error: Your PHP has no zlib support enabled.</span>'; return; } $filename = pathinfo($archive, PATHINFO_FILENAME); $gzipped = gzopen($archive, "rb"); $file = fopen($filename, "w"); while ($string = gzread($gzipped, 4096)) { fwrite($file, $string, strlen($string)); } gzclose($gzipped); fclose($file); // Check if file was extracted. if(file_exists($destination . '/' . $filename)) { self::$status = '<span style="color:green; font-weight:bold;font-size:120%;">File unzipped successfully.</span>'; } else { self::$status = '<span style="color:red; font-weight:bold;font-size:120%;">Error unzipping file.</span>'; } } } ?> <!DOCTYPE html> <head> <title>File Unzipper</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <style type="text/css"> <!-- body { font-family: Arial, serif; line-height: 150%; } fieldset { border: 0px solid #000; } .select { padding: 5px; font-size: 110%; } .status { margin-top: 20px; padding: 5px; font-size: 80%; background: #EEE; border: 1px dotted #DDD; } .submit { -moz-box-shadow: inset 0px 1px 0px 0px #bbdaf7; -webkit-box-shadow: inset 0px 1px 0px 0px #bbdaf7; box-shadow: inset 0px 1px 0px 0px #bbdaf7; background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #79bbff), color-stop(1, #378de5)); background: -moz-linear-gradient(center top, #79bbff 5%, #378de5 100%); filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#79bbff', endColorstr='#378de5'); background-color: #79bbff; -moz-border-radius: 4px; -webkit-border-radius: 4px; border-radius: 4px; border: 1px solid #84bbf3; display: inline-block; color: #ffffff; font-family: arial; font-size: 15px; font-weight: bold; padding: 10px 24px; text-decoration: none; text-shadow: 1px 1px 0px #528ecc; } .submit:hover { background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #378de5), color-stop(1, #79bbff)); background: -moz-linear-gradient(center top, #378de5 5%, #79bbff 100%); filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#378de5', endColorstr='#79bbff'); background-color: #378de5; } .submit:active { position: relative; top: 1px; } /* This imageless css button was generated by CSSButtonGenerator.com */ --> </style> </head> <body> <h1>Archive Unzipper</h1> <p>Select .zip archive or .gz file you want to extract:</p> <form action="" method="POST"> <fieldset> <select name="zipfile" size="1" class="select"> <?php foreach ($arc->zipfiles as $zip) { echo "<option>$zip</option>"; } ?> </select> <br/> <input type="submit" name="submit" class="submit" value="Unzip Archive"/> </fieldset> </form> <p class="status"> Status: <?php echo $arc::$status; ?> <br/> Processingtime: <?php echo $time; ?> ms </p> </body> </html>