addon/js_upload/js_upload.php

   1 <?php
   2
   3 /**
   4  * Name: JS Uploader
   5  * Description: JavaScript photo/image uploader. Uses Valum 'qq' Uploader.
   6  * Version: 1.0
   7  * Author: Chris Case <http://friendika.openmindspace.org/profile/chris_case>
   8  */
   9
  10 /**
  11  *
  12  * JavaScript Photo/Image Uploader
  13  *
  14  * Uses Valum 'qq' Uploader.
  15  * Module Author: Chris Case
  16  *
  17  * Prior to enabling, ensure that you have a directory 'uploads'
  18  * which is writable by the web server.
  19  *
  20  */
  21
  22
  23 function js_upload_install() {
  24         register_hook('photo_upload_form', 'addon/js_upload/js_upload.php', 'js_upload_form');
  25         register_hook('photo_post_init',   'addon/js_upload/js_upload.php', 'js_upload_post_init');
  26         register_hook('photo_post_file',   'addon/js_upload/js_upload.php', 'js_upload_post_file');
  27         register_hook('photo_post_end',    'addon/js_upload/js_upload.php', 'js_upload_post_end');
  28 }
  29
  30
  31 function js_upload_uninstall() {
  32         unregister_hook('photo_upload_form', 'addon/js_upload/js_upload.php', 'js_upload_form');
  33         unregister_hook('photo_post_init',   'addon/js_upload/js_upload.php', 'js_upload_post_init');
  34         unregister_hook('photo_post_file',   'addon/js_upload/js_upload.php', 'js_upload_post_file');
  35         unregister_hook('photo_post_end',    'addon/js_upload/js_upload.php', 'js_upload_post_end');
  36 }
  37
  38
  39 function js_upload_form(&$a,&$b) {
  40
  41         $b['default_upload'] = false;
  42
  43         $b['addon_text'] .= '<link href="' . $a->get_baseurl() . '/addon/js_upload/file-uploader/client/fileuploader.css" rel="stylesheet" type="text/css">';
  44         $b['addon_text'] .= '<script src="' . $a->get_baseurl() . '/addon/js_upload/file-uploader/client/fileuploader.js" type="text/javascript"></script>';
  45
  46         $upload_msg = t('Upload a file');
  47         $drop_msg = t('Drop files here to upload');
  48         $cancel = t('Cancel');
  49         $failed = t('Failed');
  50
  51         $b['addon_text'] .= <<< EOT
  52
  53  <div id="file-uploader-demo1">
  54   <noscript>
  55    <p>Please enable JavaScript to use file uploader.</p>
  56    <!-- or put a simple form for upload here -->
  57   </noscript>
  58  </div>
  59
  60 <script type="text/javascript">
  61 var uploader = null;
  62 function getSelected(opt) {
  63             var selected = new Array();
  64             var index = 0;
  65             for (var intLoop = 0; intLoop < opt.length; intLoop++) {
  66                if ((opt[intLoop].selected) ||
  67                    (opt[intLoop].checked)) {
  68                   index = selected.length;
  69                   //selected[index] = new Object;
  70                   selected[index] = opt[intLoop].value;
  71                   //selected[index] = intLoop;
  72                }
  73             }
  74             return selected;
  75          }
  76 function createUploader() {
  77         uploader = new qq.FileUploader({
  78                 element: document.getElementById('file-uploader-demo1'),
  79                 action: '{$b['post_url']}',
  80
  81         template: '<div class="qq-uploader">' +
  82                 '<div class="qq-upload-drop-area"><span>$drop_msg</span></div>' +
  83                 '<div class="qq-upload-button">$upload_msg</div>' +
  84                 '<ul class="qq-upload-list"></ul>' +
  85              '</div>',
  86
  87         // template for one item in file list
  88         fileTemplate: '<li>' +
  89                 '<span class="qq-upload-file"></span>' +
  90                 '<span class="qq-upload-spinner"></span>' +
  91                 '<span class="qq-upload-size"></span>' +
  92                 '<a class="qq-upload-cancel" href="#">$cancel</a>' +
  93                 '<span class="qq-upload-failed-text">$failed</span>' +
  94             '</li>',
  95
  96                 debug: true,
  97                 onSubmit: function(id,filename) {
  98
  99                         uploader.setParams( {
 100                                 newalbum                :       document.getElementById('photos-upload-newalbum').value,
 101                                 album                   :       document.getElementById('photos-upload-album-select').value,
 102                                 group_allow             :       getSelected(document.getElementById('group_allow')).join(','),
 103                                 contact_allow   :       getSelected(document.getElementById('contact_allow')).join(','),
 104                                 group_deny              :       getSelected(document.getElementById('group_deny')).join(','),
 105                                 contact_deny    :       getSelected(document.getElementById('contact_deny')).join(',')
 106                         });
 107                 }
 108         });
 109 }
 110
 111
 112 // in your app create uploader as soon as the DOM is ready
 113 // don't wait for the window to load
 114 window.onload = createUploader;
 115
 116
 117 </script>
 118
 119 EOT;
 120
 121
 122 }
 123
 124 function js_upload_post_init(&$a,&$b) {
 125
 126         // list of valid extensions, ex. array("jpeg", "xml", "bmp")
 127
 128         $allowedExtensions = array("jpeg","gif","png","jpg");
 129
 130         // max file size in bytes
 131
 132         $sizeLimit = get_config('system','maximagesize'); //6 * 1024 * 1024;
 133
 134         $uploader = new qqFileUploader($allowedExtensions, $sizeLimit);
 135
 136         $result = $uploader->handleUpload();
 137
 138
 139         // to pass data through iframe you will need to encode all html tags
 140         $a->data['upload_jsonresponse'] =  htmlspecialchars(json_encode($result), ENT_NOQUOTES);
 141
 142         if(isset($result['error'])) {
 143                 logger('mod/photos.php: photos_post(): error uploading photo: ' . $result['error'] , 'LOGGER_DEBUG');
 144                 echo json_encode($result);
 145                 killme();
 146         }
 147
 148         $a->data['upload_result'] = $result;
 149
 150 }
 151
 152 function js_upload_post_file(&$a,&$b) {
 153
 154         $result = $a->data['upload_result'];
 155
 156         $b['src']               = $result['path'];
 157         $b['filename']  = $result['filename'];
 158         $b['filesize']  = filesize($b['src']);
 159
 160 }
 161
 162
 163 function js_upload_post_end(&$a,&$b) {
 164
 165 logger('upload_post_end');
 166         if(x($a->data,'upload_jsonresponse')) {
 167                 echo $a->data['upload_jsonresponse'];
 168                 killme();
 169         }
 170
 171 }
 172
 173
 174 /**
 175  * Handle file uploads via XMLHttpRequest
 176  */
 177 class qqUploadedFileXhr {
 178
 179         private $pathnm = '';
 180
 181     /**
 182      * Save the file in the temp dir.
 183      * @return boolean TRUE on success
 184      */
 185     function save() {
 186         $input = fopen("php://input", "r");
 187         $this->pathnm = tempnam(sys_get_temp_dir(),'frn');
 188                 $temp = fopen($this->pathnm,"w");
 189         $realSize = stream_copy_to_stream($input, $temp);
 190
 191         fclose($input);
 192                 fclose($temp);
 193
 194         if ($realSize != $this->getSize()){
 195             return false;
 196         }
 197         return true;
 198     }
 199
 200         function getPath() {
 201                 return $this->pathnm;
 202         }
 203
 204     function getName() {
 205         return $_GET['qqfile'];
 206     }
 207
 208     function getSize() {
 209         if (isset($_SERVER["CONTENT_LENGTH"])){
 210             return (int)$_SERVER["CONTENT_LENGTH"];
 211         } else {
 212             throw new Exception('Getting content length is not supported.');
 213         }
 214     }
 215 }
 216
 217 /**
 218  * Handle file uploads via regular form post (uses the $_FILES array)
 219  */
 220
 221 class qqUploadedFileForm {
 222
 223
 224     /**
 225      * Save the file to the specified path
 226      * @return boolean TRUE on success
 227      */
 228
 229
 230     function save() {
 231         return true;
 232     }
 233
 234         function getPath() {
 235                 return $_FILES['qqfile']['tmp_name'];
 236         }
 237
 238     function getName() {
 239         return $_FILES['qqfile']['name'];
 240     }
 241     function getSize() {
 242         return $_FILES['qqfile']['size'];
 243     }
 244 }
 245
 246 class qqFileUploader {
 247     private $allowedExtensions = array();
 248     private $sizeLimit = 10485760;
 249     private $file;
 250
 251     function __construct(array $allowedExtensions = array(), $sizeLimit = 10485760){
 252         $allowedExtensions = array_map("strtolower", $allowedExtensions);
 253
 254         $this->allowedExtensions = $allowedExtensions;
 255         $this->sizeLimit = $sizeLimit;
 256
 257         $this->checkServerSettings();
 258
 259         if (isset($_GET['qqfile'])) {
 260             $this->file = new qqUploadedFileXhr();
 261         } elseif (isset($_FILES['qqfile'])) {
 262             $this->file = new qqUploadedFileForm();
 263         } else {
 264             $this->file = false;
 265         }
 266
 267     }
 268
 269     private function checkServerSettings(){
 270         $postSize = $this->toBytes(ini_get('post_max_size'));
 271         $uploadSize = $this->toBytes(ini_get('upload_max_filesize'));
 272                 logger('mod/photos.php: qqFileUploader(): upload_max_filesize=' . $uploadSize , 'LOGGER_DEBUG');
 273         if ($postSize < $this->sizeLimit || $uploadSize < $this->sizeLimit){
 274             $size = max(1, $this->sizeLimit / 1024 / 1024) . 'M';
 275             die("{'error':'increase post_max_size and upload_max_filesize to $size'}");
 276         }
 277     }
 278
 279     private function toBytes($str){
 280         $val = trim($str);
 281         $last = strtolower($str[strlen($str)-1]);
 282         switch($last) {
 283             case 'g': $val *= 1024;
 284             case 'm': $val *= 1024;
 285             case 'k': $val *= 1024;
 286         }
 287         return $val;
 288     }
 289
 290     /**
 291      * Returns array('success'=>true) or array('error'=>'error message')
 292      */
 293     function handleUpload(){
 294
 295         if (!$this->file){
 296             return array('error' => t('No files were uploaded.'));
 297         }
 298
 299         $size = $this->file->getSize();
 300
 301         if ($size == 0) {
 302             return array('error' => t('Uploaded file is empty'));
 303         }
 304
 305         if ($size > $this->sizeLimit) {
 306
 307             return array('error' => t('Uploaded file is too large'));
 308         }
 309
 310
 311                 $maximagesize = get_config('system','maximagesize');
 312
 313                 if(($maximagesize) && ($size > $maximagesize)) {
 314                         return array('error' => t('Image exceeds size limit of ') . $maximagesize );
 315
 316                 }
 317
 318         $pathinfo = pathinfo($this->file->getName());
 319         $filename = $pathinfo['filename'];
 320
 321         $ext = $pathinfo['extension'];
 322
 323         if($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)){
 324             $these = implode(', ', $this->allowedExtensions);
 325             return array('error' => t('File has an invalid extension, it should be one of ') . $these . '.');
 326         }
 327
 328         if ($this->file->save()){
 329             return array(
 330                                 'success'=>true,
 331                                 'path' => $this->file->getPath(),
 332                                 'filename' => $filename . '.' . $ext
 333                         );
 334         } else {
 335             return array(
 336                                 'error'=> t('Upload was cancelled, or server error encountered'),
 337                                 'path' => $this->file->getPath(),
 338                                 'filename' => $filename . '.' . $ext
 339                         );
 340         }
 341
 342     }
 343 }