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1 <?php
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2 /**
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3 * Styx::Upload - Handles file uploads
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4 *
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5 * @package Styx
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6 * @subpackage Utility
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7 *
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8 * @license MIT-style License
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9 * @author Christoph Pojer <christoph.pojer@gmail.com>
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10 */
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11
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12 class Upload {
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13
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14 /**
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15 * Moves the uploaded file to the specified location. It throws a UploadException
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16 * if anything goes wrong except for if the upload does not exist. This can be checked with {@link Upload::exists()}
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17 *
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18 * @param string $file
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19 * @param string $to
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20 * @param array $options
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21 * @return bool|string Path to moved file or false if the specified upload does not exist
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22 */
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23 public static function move($file, $to, $options = null){
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24 if(!self::exists($file)) return false;
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25
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26 $options = array_merge(array(
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27 'name' => null,
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28 'extension' => null,
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29 'size' => null,
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30 'chmod' => 0777,
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31 'overwrite' => false,
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32 'mimes' => array(),
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33 ), $options);
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34
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35 $file = $_FILES[$file];
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36
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37 if($options['size'] && $file['size']>$options['size'])
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38 throw new UploadException('size');
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39
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40 $pathinfo = pathinfo($file['name']);
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41 if($options['extension']) $pathinfo['extension'] = $options['extension'];
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42 if(!$pathinfo['extension'])
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43 throw new UploadException('extension');
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44
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45 if(count($options['mimes'])){
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46 $mime = self::mime($file['tmp_name'], array(
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47 'default' => $file['type'],
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48 'extension' => $pathinfo['extension'],
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49 ));
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50
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51 if(!$mime || !in_array($mime, $options['mimes']))
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52 throw new UploadException('extension');
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53 }
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54
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55 $file['ext'] = strtolower($pathinfo['extension']);
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56 $file['base'] = basename($pathinfo['basename'], '.'.$pathinfo['extension']);
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57
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58 $real = realpath($to);
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59 if(!$real) throw new UploadException('path');
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60 if(is_dir($real)) $to = $real.'/'.($options['name'] ? $options['name'] : $file['base']).'.'.$file['ext'];
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61
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62 if(!$options['overwrite'] && file_exists($to))
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63 throw new UploadException('exists');
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64
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65 if(!move_uploaded_file($file['tmp_name'], $to))
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66 throw new UploadException(strtolower($_FILES[$file]['error']<=2 ? 'size' : ($_FILES[$file]['error']==3 ? 'partial' : 'nofile')));
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67
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68 chmod($to, $options['chmod']);
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69
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70 return realpath($to);
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71 }
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72
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73 /**
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74 * Returns whether the Upload exists or not
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75 *
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76 * @param string $file
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77 * @return bool
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78 */
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79 public function exists($file){
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80 return !(empty($_FILES[$file]['name']) || empty($_FILES[$file]['size']));
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81 }
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82
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83 /**
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84 * Returns (if possible) the mimetype of the given file
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85 *
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86 * @param string $file
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87 * @param array $options
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88 */
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89 public function mime($file, $options = array()){
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90 $file = realpath($file);
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91 $options = array_merge(array(
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92 'default' => null,
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93 'extension' => strtolower(pathinfo($file, PATHINFO_EXTENSION)),
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94 ), $options);
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95
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96 $mime = null;
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97 if(function_exists('finfo_open') && $f = finfo_open(FILEINFO_MIME, getenv('MAGIC'))){
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98 $mime = finfo_file($f, $file);
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99 finfo_close($f);
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100 }
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101
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102 if(!$mime && in_array($options['extension'], array('gif', 'jpg', 'jpeg', 'png'))){
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103 $image = getimagesize($file);
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104 if(!empty($image['mime']))
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105 $mime = $image['mime'];
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106 }
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107
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108 if(!$mime && $options['default']) $mime = $options['default'];
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109
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110 if((!$mime || $mime=='application/octet-stream') && $options['extension']){
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111 static $mimes;
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112 if(!$mimes) $mimes = parse_ini_file(pathinfo(__FILE__, PATHINFO_DIRNAME).'/MimeTypes.ini');
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113
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114 if(!empty($mimes[$options['extension']])) return $mimes[$options['extension']];
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115 }
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116
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117 return $mime;
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118 }
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119
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120 }
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121
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122 class UploadException extends Exception {} |
