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freenetis-github/application/helpers/upload.php @ 8baed187

8baed187 Michal Kliment
<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Upload helper class for working with the global $_FILES
* array and Validation library.
*
* $Id: upload.php 4134 2009-03-28 04:37:54Z zombor $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class upload {

public static $mimes = array
(
'7z' => array('application/x-7z-compressed'),
'ai' => array('application/postscript'),
'aif' => array('audio/x-aiff'),
'aifc' => array('audio/x-aiff'),
'aiff' => array('audio/x-aiff'),
'asf' => array('video/x-ms-asf'),
'atom' => array('application/atom+xml'),
'avi' => array('video/x-msvideo'),
'bin' => array('application/octet-stream','application/macbinary'),
'bmp' => array('image/bmp'),
'cab' => array('application/x-cab'),
'cpt' => array('application/mac-compactpro'),
'class' => array('application/octet-stream'),
'css' => array('text/css'),
'csv' => array('text/x-comma-separated-values', 'application/vnd.ms-excel'),
'deb' => array('application/x-debian-package'),
'dbk' => array('application/docbook+xml'),
'dir' => array('application/x-director'),
'dcr' => array('application/x-director'),
'doc' => array('application/msword'),
'dmg' => array('application/x-apple-diskimage'),
'dms' => array('application/octet-stream'),
'dvi' => array('application/x-dvi'),
'dxr' => array('application/x-director'),
'dll' => array('application/octet-stream', 'application/x-msdos-program'),
'eml' => array('message/rfc822'),
'exe' => array('application/x-msdos-program', 'application/octet-stream'),
'eps' => array('application/postscript'),
'gif' => array('image/gif'),
'gtar' => array('application/x-gtar'),
'gz' => array('application/x-gzip'),
'htm' => array('text/html'),
'html' => array('text/html'),
'hqx' => array('application/mac-binhex40'),
'ics' => array('text/calendar'),
'iso' => array('application/x-iso9660-image'),
'jar' => array('application/java-archive'),
'jpeg' => array('image/jpeg', 'image/pjpeg'),
'jpg' => array('image/jpeg', 'image/pjpeg'),
'jpe' => array('image/jpeg', 'image/pjpeg'),
'js' => array('application/x-javascript'),
'json' => array('application/json'),
'lha' => array('application/octet-stream'),
'log' => array('text/plain', 'text/x-log'),
'lzh' => array('application/octet-stream'),
'midi' => array('audio/midi'),
'mid' => array('audio/midi'),
'mif' => array('application/vnd.mif'),
'mp2' => array('audio/mpeg'),
'mp3' => array('audio/mpeg'),
'mov' => array('video/quicktime'),
'movie' => array('video/x-sgi-movie'),
'mpe' => array('video/mpeg'),
'mpeg' => array('video/mpeg'),
'mpg' => array('video/mpeg'),
'mpga' => array('audio/mpeg'),
'msi' => array('application/x-msi'),
'oda' => array('application/oda'),
'odb' => array('application/vnd.oasis.opendocument.database'),
'odc' => array('application/vnd.oasis.opendocument.chart'),
'odf' => array('application/vnd.oasis.opendocument.forumla'),
'odg' => array('application/vnd.oasis.opendocument.graphics'),
'odi' => array('application/vnd.oasis.opendocument.image'),
'odm' => array('application/vnd.oasis.opendocument.text-master'),
'odp' => array('application/vnd.oasis.opendocument.presentation'),
'ods' => array('application/vnd.oasis.opendocument.spreadsheet'),
'odt' => array('application/vnd.oasis.opendocument.text'),
'ogg' => array('application/ogg'),
'otg' => array('application/vnd.oasis.opendocument.graphics-template'),
'oth' => array('application/vnd.oasis.opendocument.web'),
'otp' => array('application/vnd.oasis.opendocument.presentation-template'),
'ots' => array('application/vnd.oasis.opendocument.spreadsheet-template'),
'ott' => array('application/vnd.oasis.opendocument.template'),
'pdf' => array('application/pdf', 'application/x-download'),
'php' => array('application/x-httpd-php'),
'php3' => array('application/x-httpd-php'),
'php4' => array('application/x-httpd-php'),
'php5' => array('application/x-httpd-php'),
'phps' => array('application/x-httpd-php-source'),
'phtml' => array('application/x-httpd-php'),
'png' => array('image/png', 'image/x-png'),
'pps' => array('application/vnd.ms-powerpoint'),
'ppt' => array('application/powerpoint'),
'ps' => array('application/postscript'),
'psd' => array('application/x-photoshop', 'image/x-photoshop'),
'qt' => array('video/quicktime'),
'ra' => array('audio/x-realaudio'),
'ram' => array('audio/x-pn-realaudio'),
'rar' => array('application/rar'),
'rm' => array('audio/x-pn-realaudio'),
'rpm' => array('audio/x-pn-realaudio-plugin', 'application/x-redhat-package-manager'),
'rss' => array('application/rss+xml'),
'rtf' => array('text/rtf'),
'rtx' => array('text/richtext'),
'rv' => array('video/vnd.rn-realvideo'),
'sea' => array('application/octet-stream'),
'shtml' => array('text/html'),
'sit' => array('application/x-stuffit'),
'smi' => array('application/smil'),
'smil' => array('application/smil'),
'so' => array('application/octet-stream'),
'swf' => array('application/x-shockwave-flash'),
'tar' => array('application/x-tar'),
'torrent' => array('application/x-bittorrent'),
'text' => array('text/plain'),
'tif' => array('image/tiff'),
'tiff' => array('image/tiff'),
'tgz' => array('application/x-tar'),
'txt' => array('text/plain'),
'wav' => array('audio/x-wav'),
'wbxml' => array('application/wbxml'),
'wmlc' => array('application/wmlc'),
'wpd' => array('application/vnd.wordperfect'),
'word' => array('application/msword', 'application/octet-stream'),
'xhtml' => array('application/xhtml+xml'),
'xht' => array('application/xhtml+xml'),
'xl' => array('application/excel'),
'xls' => array('application/excel', 'application/vnd.ms-excel'),
'xml' => array('text/xml'),
'xsl' => array('text/xml'),
'zip' => array('application/x-zip', 'application/zip', 'application/x-zip-compressed')
);

/**
* Save an uploaded file to a new location.
*
* @param mixed name of $_FILE input or array of upload data
* @param string new filename
* @param string new directory
* @param integer chmod mask
* @return string full path to new file
*/
public static function save($file, $filename = NULL, $directory = NULL, $chmod = 0644)
{
// Load file data from FILES if not passed as array
$file = is_array($file) ? $file : $_FILES[$file];

if ($filename === NULL)
{
// Use the default filename, with a timestamp pre-pended
$filename = time().$file['name'];
}

if (Settings::get('upload_remove_spaces'))
{
// Remove spaces from the filename
$filename = preg_replace('/\s+/', '_', $filename);
}


if ($directory === NULL)
{
// Use the pre-configured upload directory
$directory = Settings::get('upload_directory');
}

// Make sure the directory ends with a slash
$directory = rtrim($directory, '/').'/';

if ( ! is_dir($directory) AND Settings::get('upload_create_directories'))
{
// Create the upload directory
mkdir($directory, 0777, TRUE);
}


if ( ! is_writable($directory))
throw new Kohana_Exception('upload.not_writable', $directory);

if (is_uploaded_file($file['tmp_name']) AND move_uploaded_file($file['tmp_name'], $filename = $directory.$filename))
{
if ($chmod !== FALSE)
{
// Set permissions on filename
chmod($filename, $chmod);
}

// Return new file path
return $filename;
}

return FALSE;
}

/* Validation Rules */

/**
* Tests if input data is valid file type, even if no upload is present.
*
* @param array $_FILES item
* @return bool
*/
public static function valid($file)
{
return (is_array($file)
AND isset($file['error'])
AND isset($file['name'])
AND isset($file['type'])
AND isset($file['tmp_name'])
AND isset($file['size']));
}

/**
* Tests if input data has valid upload data.
*
* @param array $_FILES item
* @return bool
*/
public static function required(array $file)
{
return (isset($file['tmp_name'])
AND isset($file['error'])
AND is_uploaded_file($file['tmp_name'])
AND (int) $file['error'] === UPLOAD_ERR_OK);
}

/**
* Validation rule to test if an uploaded file is allowed by extension.
*
* @param array $_FILES item
* @param array allowed file extensions
* @return bool
*/
public static function type(array $file, array $allowed_types)
{
if ((int) $file['error'] !== UPLOAD_ERR_OK)
return TRUE;

// Get the default extension of the file
$extension = strtolower(substr(strrchr($file['name'], '.'), 1));

// Get the mime types for the extension
$mime_types = $mimes[$extension];

// Make sure there is an extension, that the extension is allowed, and that mime types exist
return ( ! empty($extension) AND in_array($extension, $allowed_types) AND is_array($mime_types));
}

/**
* Validation rule to test if an uploaded file is allowed by file size.
* File sizes are defined as: SB, where S is the size (1, 15, 300, etc) and
* B is the byte modifier: (B)ytes, (K)ilobytes, (M)egabytes, (G)igabytes.
* Eg: to limit the size to 1MB or less, you would use "1M".
*
* @param array $_FILES item
* @param array maximum file size
* @return bool
*/
public static function size(array $file, array $size)
{
if ((int) $file['error'] !== UPLOAD_ERR_OK)
return TRUE;

// Only one size is allowed
$size = strtoupper($size[0]);

if ( ! preg_match('/[0-9]++[BKMG]/', $size))
return FALSE;

// Make the size into a power of 1024
switch (substr($size, -1))
{
case 'G': $size = intval($size) * pow(1024, 3); break;
case 'M': $size = intval($size) * pow(1024, 2); break;
case 'K': $size = intval($size) * pow(1024, 1); break;
default: $size = intval($size); break;
}

// Test that the file is under or equal to the max size
return ($file['size'] <= $size);
}

} // End upload