addon/js_upload/js_upload.php

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