mirror of
https://github.com/nextcloud/nextcloudpi.git
synced 2026-01-09 06:32:00 -03:30
85 lines
1.8 KiB
PHP
85 lines
1.8 KiB
PHP
<?php
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///
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// NextcloudPi Web Panel backend
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//
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// Copyleft 2019 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
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// GPL licensed (see end of file) * Use at your own risk!
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//
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// More at https://nextcloudpi.com
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///
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include ('csrf.php');
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session_start();
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// CSRF check
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$token = isset($_REQUEST['token']) ? $_REQUEST['token'] : '';
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if ( empty($token) || !validateCSRFToken($token) )
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exit('Unauthorized download');
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if (!isset($_REQUEST["bkp"]))
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die();
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$file = $_REQUEST["bkp"];
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if (!file_exists($file))
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die('File not found');
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if (!is_readable($file))
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die('NCP does not have read permissions on this file');
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function filesize_compat($file)
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{
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if(PHP_INT_SIZE === 4) # workaround for 32-bit architectures
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return trim(shell_exec("stat -c%s " . escapeshellarg($file)));
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else
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return filesize($file);
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}
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$size = filesize_compat($file);
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$extension = pathinfo($file, PATHINFO_EXTENSION);
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if ($extension === "tar" )
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$mime_type = 'application/x-tar';
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else if( $extension === "gz")
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$mime_type = 'application/x-gzip';
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else
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die();
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ob_start();
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ob_clean();
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header('Content-Description: File Transfer');
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header('Content-Type: ' . $mime_type);
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header("Content-Transfer-Encoding: Binary");
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header("Content-disposition: attachment; filename=\"" . basename($file) . "\"");
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header('Content-Length: ' . $size);
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header('Expires: 0');
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header('Cache-Control: must-revalidate');
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header('Pragma: public');
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$chunksize = 8 * (1024 * 1024);
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if($size > $chunksize || PHP_INT_SIZE === 4) # always chunk for 32-bit architectures
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{
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$handle = fopen($file, 'rb') or die("Error opening file");
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while (!feof($handle))
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{
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$buffer = fread($handle, $chunksize);
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echo $buffer;
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ob_flush();
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flush();
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}
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fclose($handle);
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}
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else
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readfile($file);
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ob_flush();
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flush();
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exit();
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?>
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