js_upload/js_upload.php

   1 <?php
   2 /**
   3  * Name: JS Uploader
   4  * Description: JavaScript photo/image uploader. Helpful for uploading multiple files at once. Uses Valum 'qq' Uploader.
   5  * Version: 1.1
   6  * Author: Chris Case <http://friendika.openmindspace.org/profile/chris_case>
   7  * Maintainer: Hypolite Petovan <https://friendica.mrpetovan.com/profile/hypolite>
   8  */
   9
  10 use Friendica\App;
  11 use Friendica\Core\Hook;
  12 use Friendica\Core\Logger;
  13 use Friendica\Core\Renderer;
  14 use Friendica\DI;
  15 use Friendica\Util\Strings;
  16
  17 global $js_upload_jsonresponse;
  18 global $js_upload_result;
  19
  20 function js_upload_install()
  21 {
  22         Hook::register('photo_upload_form', __FILE__, 'js_upload_form');
  23         Hook::register('photo_post_init', __FILE__, 'js_upload_post_init');
  24         Hook::register('photo_post_file', __FILE__, 'js_upload_post_file');
  25         Hook::register('photo_post_end', __FILE__, 'js_upload_post_end');
  26 }
  27
  28 function js_upload_form(array &$b)
  29 {
  30         $b['default_upload'] = false;
  31
  32         DI::page()->registerStylesheet(__DIR__ . '/file-uploader/client/fileuploader.css');
  33         DI::page()->registerFooterScript(__DIR__ . '/file-uploader/client/fileuploader.js');
  34
  35         $tpl = Renderer::getMarkupTemplate('js_upload.tpl', 'addon/js_upload');
  36         $b['addon_text'] .= Renderer::replaceMacros($tpl, [
  37                 '$upload_msg' => DI::l10n()->t('Select files for upload'),
  38                 '$drop_msg' => DI::l10n()->t('Drop files here to upload'),
  39                 '$cancel' => DI::l10n()->t('Cancel'),
  40                 '$failed' => DI::l10n()->t('Failed'),
  41                 '$post_url' => $b['post_url'],
  42                 '$maximagesize' => Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize')),
  43         ]);
  44 }
  45
  46 function js_upload_post_init(array &$b)
  47 {
  48         global $js_upload_result, $js_upload_jsonresponse;
  49
  50         // list of valid extensions
  51         $allowedExtensions = ['jpeg', 'gif', 'png', 'jpg'];
  52
  53         // max file size in bytes
  54         $sizeLimit = Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize'));
  55
  56         $uploader = new qqFileUploader($allowedExtensions, $sizeLimit);
  57
  58         $result = $uploader->handleUpload();
  59
  60         // to pass data through iframe you will need to encode all html tags
  61         $js_upload_jsonresponse = htmlspecialchars(json_encode($result), ENT_NOQUOTES);
  62
  63         if (isset($result['error'])) {
  64                 Logger::info('mod/photos.php: photos_post(): error uploading photo: ' . $result['error']);
  65                 echo json_encode($result);
  66                 exit();
  67         }
  68
  69         $js_upload_result = $result;
  70 }
  71
  72 function js_upload_post_file(array &$b)
  73 {
  74         global $js_upload_result;
  75
  76         $result = $js_upload_result;
  77
  78         $b['src'] = $result['path'];
  79         $b['filename'] = $result['filename'];
  80         $b['filesize'] = filesize($b['src']);
  81
  82 }
  83
  84 function js_upload_post_end(int &$b)
  85 {
  86         global $js_upload_jsonresponse;
  87
  88         Logger::notice('upload_post_end');
  89         if (!empty($js_upload_jsonresponse)) {
  90                 echo $js_upload_jsonresponse;
  91                 exit();
  92         }
  93 }
  94
  95 /**
  96  * Handle file uploads via XMLHttpRequest
  97  */
  98 class qqUploadedFileXhr
  99 {
 100         private $pathnm = '';
 101
 102         /**
 103          * Save the file in the temp dir.
 104          *
 105          * @return boolean TRUE on success
 106          */
 107         function save()
 108         {
 109                 $input = fopen('php://input', 'r');
 110
 111                 $upload_dir = DI::config()->get('system', 'tempdir');
 112                 if (!$upload_dir)
 113                         $upload_dir = sys_get_temp_dir();
 114
 115                 $this->pathnm = tempnam($upload_dir, 'frn');
 116
 117                 $temp = fopen($this->pathnm, 'w');
 118                 $realSize = stream_copy_to_stream($input, $temp);
 119
 120                 fclose($input);
 121                 fclose($temp);
 122
 123                 if ($realSize != $this->getSize()) {
 124                         return false;
 125                 }
 126                 return true;
 127         }
 128
 129         function getPath()
 130         {
 131                 return $this->pathnm;
 132         }
 133
 134         function getName()
 135         {
 136                 return $_GET['qqfile'];
 137         }
 138
 139         function getSize()
 140         {
 141                 if (isset($_SERVER['CONTENT_LENGTH'])) {
 142                         return (int)$_SERVER['CONTENT_LENGTH'];
 143                 } else {
 144                         throw new Exception('Getting content length is not supported.');
 145                 }
 146         }
 147 }
 148
 149 /**
 150  * Handle file uploads via regular form post (uses the $_FILES array)
 151  */
 152 class qqUploadedFileForm
 153 {
 154         /**
 155          * Save the file to the specified path
 156          *
 157          * @return boolean TRUE on success
 158          */
 159         function save()
 160         {
 161                 return true;
 162         }
 163
 164         function getPath()
 165         {
 166                 return $_FILES['qqfile']['tmp_name'];
 167         }
 168
 169         function getName()
 170         {
 171                 return $_FILES['qqfile']['name'];
 172         }
 173
 174         function getSize()
 175         {
 176                 return $_FILES['qqfile']['size'];
 177         }
 178 }
 179
 180 class qqFileUploader
 181 {
 182         private $allowedExtensions = [];
 183         private $sizeLimit = 10485760;
 184         private $file;
 185
 186         function __construct(array $allowedExtensions = [], $sizeLimit = 10485760)
 187         {
 188                 $allowedExtensions = array_map('strtolower', $allowedExtensions);
 189
 190                 $this->allowedExtensions = $allowedExtensions;
 191                 $this->sizeLimit = $sizeLimit;
 192
 193                 if (isset($_GET['qqfile'])) {
 194                         $this->file = new qqUploadedFileXhr();
 195                 } elseif (isset($_FILES['qqfile'])) {
 196                         $this->file = new qqUploadedFileForm();
 197                 } else {
 198                         $this->file = false;
 199                 }
 200
 201         }
 202
 203         /**
 204          * Returns array('success'=>true) or array('error'=>'error message')
 205          */
 206         function handleUpload()
 207         {
 208                 if (!$this->file) {
 209                         return ['error' => DI::l10n()->t('No files were uploaded.')];
 210                 }
 211
 212                 $size = $this->file->getSize();
 213
 214                 if ($size == 0) {
 215                         return ['error' => DI::l10n()->t('Uploaded file is empty')];
 216                 }
 217
 218 //              if ($size > $this->sizeLimit) {
 219
 220 //                      return array('error' => DI::l10n()->t('Uploaded file is too large'));
 221 //              }
 222
 223
 224                 $maximagesize = Strings::getBytesFromShorthand(DI::config()->get('system', 'maximagesize'));
 225
 226                 if (($maximagesize) && ($size > $maximagesize)) {
 227                         return ['error' => DI::l10n()->t('Image exceeds size limit of %s', Strings::formatBytes($maximagesize))];
 228                 }
 229
 230                 $pathinfo = pathinfo($this->file->getName());
 231                 $filename = $pathinfo['filename'];
 232
 233                 if (!isset($pathinfo['extension'])) {
 234                         Logger::warning('extension isn\'t set.', ['filename' => $filename]);
 235                 }
 236                 $ext = $pathinfo['extension'] ?? '';
 237
 238                 if ($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)) {
 239                         return ['error' => DI::l10n()->t('File has an invalid extension, it should be one of %s.', implode(', ', $this->allowedExtensions))];
 240                 }
 241
 242                 if ($this->file->save()) {
 243                         return [
 244                                 'success' => true,
 245                                 'path' => $this->file->getPath(),
 246                                 'filename' => $filename . '.' . $ext
 247                         ];
 248                 } else {
 249                         return [
 250                                 'error' => DI::l10n()->t('Upload was cancelled, or server error encountered'),
 251                                 'path' => $this->file->getPath(),
 252                                 'filename' => $filename . '.' . $ext
 253                         ];
 254                 }
 255         }
 256 }