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 = 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                 killme();
 145         }
 146
 147         $a->data['upload_result'] = $result;
 148
 149 }
 150
 151 function js_upload_post_file(&$a,&$b) {
 152
 153         $result = $a->data['upload_result'];
 154
 155         $b['src']               = $result['path'];
 156         $b['filename']  = $result['filename'];
 157         $b['filesize']  = filesize($b['src']);
 158
 159 }
 160
 161
 162 function js_upload_post_end(&$a,&$b) {
 163
 164 logger('upload_post_end');
 165         if(x($a->data,'upload_jsonresponse')) {
 166                 echo $a->data['upload_jsonresponse'];
 167                 killme();
 168         }
 169
 170 }
 171
 172
 173 /**
 174  * Handle file uploads via XMLHttpRequest
 175  */
 176 class qqUploadedFileXhr {
 177
 178         private $pathnm = '';
 179
 180     /**
 181      * Save the file in the temp dir.
 182      * @return boolean TRUE on success
 183      */
 184     function save() {
 185         $input = fopen("php://input", "r");
 186         $this->pathnm = tempnam(sys_get_temp_dir(),'frn');
 187                 $temp = fopen($this->pathnm,"w");
 188         $realSize = stream_copy_to_stream($input, $temp);
 189
 190         fclose($input);
 191                 fclose($temp);
 192
 193         if ($realSize != $this->getSize()){
 194             return false;
 195         }
 196         return true;
 197     }
 198
 199         function getPath() {
 200                 return $this->pathnm;
 201         }
 202
 203     function getName() {
 204         return $_GET['qqfile'];
 205     }
 206
 207     function getSize() {
 208         if (isset($_SERVER["CONTENT_LENGTH"])){
 209             return (int)$_SERVER["CONTENT_LENGTH"];
 210         } else {
 211             throw new Exception('Getting content length is not supported.');
 212         }
 213     }
 214 }
 215
 216 /**
 217  * Handle file uploads via regular form post (uses the $_FILES array)
 218  */
 219
 220 class qqUploadedFileForm {
 221
 222
 223     /**
 224      * Save the file to the specified path
 225      * @return boolean TRUE on success
 226      */
 227
 228
 229     function save() {
 230         return true;
 231     }
 232
 233         function getPath() {
 234                 return $_FILES['qqfile']['tmp_name'];
 235         }
 236
 237     function getName() {
 238         return $_FILES['qqfile']['name'];
 239     }
 240     function getSize() {
 241         return $_FILES['qqfile']['size'];
 242     }
 243 }
 244
 245 class qqFileUploader {
 246     private $allowedExtensions = array();
 247     private $sizeLimit = 10485760;
 248     private $file;
 249
 250     function __construct(array $allowedExtensions = array(), $sizeLimit = 10485760){
 251         $allowedExtensions = array_map("strtolower", $allowedExtensions);
 252
 253         $this->allowedExtensions = $allowedExtensions;
 254         $this->sizeLimit = $sizeLimit;
 255
 256         $this->checkServerSettings();
 257
 258         if (isset($_GET['qqfile'])) {
 259             $this->file = new qqUploadedFileXhr();
 260         } elseif (isset($_FILES['qqfile'])) {
 261             $this->file = new qqUploadedFileForm();
 262         } else {
 263             $this->file = false;
 264         }
 265
 266     }
 267
 268     private function checkServerSettings(){
 269         $postSize = $this->toBytes(ini_get('post_max_size'));
 270         $uploadSize = $this->toBytes(ini_get('upload_max_filesize'));
 271                 logger('mod/photos.php: qqFileUploader(): upload_max_filesize=' . $uploadSize , 'LOGGER_DEBUG');
 272         if ($postSize < $this->sizeLimit || $uploadSize < $this->sizeLimit){
 273             $size = max(1, $this->sizeLimit / 1024 / 1024) . 'M';
 274             die("{'error':'increase post_max_size and upload_max_filesize to $size'}");
 275         }
 276     }
 277
 278     private function toBytes($str){
 279         $val = trim($str);
 280         $last = strtolower($str[strlen($str)-1]);
 281         switch($last) {
 282             case 'g': $val *= 1024;
 283             case 'm': $val *= 1024;
 284             case 'k': $val *= 1024;
 285         }
 286         return $val;
 287     }
 288
 289     /**
 290      * Returns array('success'=>true) or array('error'=>'error message')
 291      */
 292     function handleUpload(){
 293
 294         if (!$this->file){
 295             return array('error' => t('No files were uploaded.'));
 296         }
 297
 298         $size = $this->file->getSize();
 299
 300         if ($size == 0) {
 301             return array('error' => t('Uploaded file is empty'));
 302         }
 303
 304         if ($size > $this->sizeLimit) {
 305
 306             return array('error' => t('Uploaded file is too large'));
 307         }
 308
 309
 310                 $maximagesize = get_config('system','maximagesize');
 311
 312                 if(($maximagesize) && ($size > $maximagesize)) {
 313                         return array('error' => t('Image exceeds size limit of ') . $maximagesize );
 314
 315                 }
 316
 317         $pathinfo = pathinfo($this->file->getName());
 318         $filename = $pathinfo['filename'];
 319
 320         $ext = $pathinfo['extension'];
 321
 322         if($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)){
 323             $these = implode(', ', $this->allowedExtensions);
 324             return array('error' => t('File has an invalid extension, it should be one of ') . $these . '.');
 325         }
 326
 327         if ($this->file->save()){
 328             return array(
 329                                 'success'=>true,
 330                                 'path' => $this->file->getPath(),
 331                                 'filename' => $filename . '.' . $ext
 332                         );
 333         } else {
 334             return array(
 335                                 'error'=> t('Upload was cancelled, or server error encountered'),
 336                                 'path' => $this->file->getPath(),
 337                                 'filename' => $filename . '.' . $ext
 338                         );
 339         }
 340
 341     }
 342 }