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