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   1  <?php
   2  // $Id: filefield_widget.inc,v 1.105 2010/12/08 21:57:49 quicksketch Exp $
   3  
   4  /**
   5   * @file
   6   * This file contains CCK widget related functionality.
   7   *
   8   * Uses content.module to store the fid and field specific metadata,
   9   * and Drupal's files table to store the actual file data.
  10   */
  11  
  12  /**
  13   * Implementation of CCK's hook_widget_settings($op == 'form').
  14   */
  15  function filefield_widget_settings_form($widget) {
  16    $form = array();
  17  
  18    // Convert the extensions list to be a human-friendly comma-separated list.
  19    $extensions = is_string($widget['file_extensions']) ? $widget['file_extensions'] : 'txt';
  20    $form['file_extensions'] = array(
  21      '#type' => 'textfield',
  22      '#title' => t('Permitted upload file extensions'),
  23      '#default_value' => $extensions,
  24      '#size' => 64,
  25      '#maxlength' => 512,
  26      '#description' => t('Extensions a user can upload to this field. Separate extensions with a space and do not include the leading dot. Leaving this blank will allow users to upload a file with any extension.'),
  27      '#element_validate' => array('_filefield_widget_settings_extensions_validate'),
  28      '#pre_render' => array('_filefield_widget_settings_extensions_value'),
  29      '#weight' => 1,
  30    );
  31  
  32    $form['progress_indicator'] = array(
  33      '#type' => 'radios',
  34      '#title' => t('Progress indicator'),
  35      '#options' => array(
  36        'bar' => t('Bar with progress meter'),
  37        'throbber' => t('Throbber'),
  38      ),
  39      '#default_value' => empty($widget['progress_indicator']) ? 'bar' : $widget['progress_indicator'],
  40      '#description' => t('Your server supports upload progress capabilities. The "throbber" display does not indicate progress but takes up less room on the form, you may want to use it if you\'ll only be uploading small files or if experiencing problems with the progress bar.'),
  41      '#weight' => 5,
  42      '#access' => filefield_progress_implementation(),
  43    );
  44  
  45    $form['path_settings'] = array(
  46      '#type' => 'fieldset',
  47      '#title' => t('Path settings'),
  48      '#collapsible' => TRUE,
  49      '#collapsed' => TRUE,
  50      '#weight' => 6,
  51    );
  52    $form['path_settings']['file_path'] = array(
  53      '#type' => 'textfield',
  54      '#title' => t('File path'),
  55      '#default_value' => is_string($widget['file_path']) ? $widget['file_path'] : '',
  56      '#description' => t('Optional subdirectory within the "%directory" directory where files will be stored. Do not include preceding or trailing slashes.', array('%directory' => variable_get('file_directory_path', 'files') . '/')),
  57      '#element_validate' => array('_filefield_widget_settings_file_path_validate'),
  58      '#suffix' => theme('token_help', 'user'),
  59    );
  60  
  61    $form['max_filesize'] = array(
  62      '#type' => 'fieldset',
  63      '#title' => t('File size restrictions'),
  64      '#description' => t('Limits for the size of files that a user can upload. Note that these settings only apply to newly uploaded files, whereas existing files are not affected.'),
  65      '#weight' => 6,
  66      '#collapsible' => TRUE,
  67      '#collapsed' => TRUE,
  68    );
  69    $form['max_filesize']['max_filesize_per_file'] = array(
  70      '#type' => 'textfield',
  71      '#title' => t('Maximum upload size per file'),
  72      '#default_value' => is_string($widget['max_filesize_per_file'])
  73                          ? $widget['max_filesize_per_file']
  74                           : '',
  75      '#description' => t('Specify the size limit that applies to each file separately. Enter a value like "512" (bytes), "80K" (kilobytes) or "50M" (megabytes) in order to restrict the allowed file size. If you leave this empty the file sizes will be limited only by PHP\'s maximum post and file upload sizes (current limit <strong>%limit</strong>).', array('%limit' => format_size(file_upload_max_size()))),
  76      '#element_validate' => array('_filefield_widget_settings_max_filesize_per_file_validate'),
  77    );
  78    $form['max_filesize']['max_filesize_per_node'] = array(
  79      '#type' => 'textfield',
  80      '#title' => t('Maximum upload size per node'),
  81      '#default_value' => is_string($widget['max_filesize_per_node'])
  82                          ? $widget['max_filesize_per_node']
  83                          : '',
  84      '#description' => t('Specify the total size limit for all files in field on a given node. Enter a value like "512" (bytes), "80K" (kilobytes) or "50M" (megabytes) in order to restrict the total size of a node. Leave this empty if there should be no size restriction.'),
  85      '#element_validate' => array('_filefield_widget_settings_max_filesize_per_node_validate'),
  86    );
  87  
  88    return $form;
  89  }
  90  
  91  /**
  92   * Implementation of CCK's hook_widget_settings($op == 'save').
  93   */
  94  function filefield_widget_settings_save($widget) {
  95    return array('file_extensions', 'file_path', 'progress_indicator', 'max_filesize_per_file', 'max_filesize_per_node');
  96  }
  97  
  98  /**
  99   * A FAPI #pre_render() function to set a cosmetic default value for extensions.
 100   */
 101  function _filefield_widget_settings_extensions_value($element) {
 102    $element['#value'] = implode(', ', array_filter(explode(' ', str_replace(',', ' ', $element['#value']))));
 103    return $element;
 104  }
 105  
 106  /**
 107   * A FAPI #element_validate callback to strip commas from extension lists.
 108   */
 109  function _filefield_widget_settings_extensions_validate($element, &$form_state) {
 110    // Remove commas and leading dots from file extensions.
 111    $value = str_replace(',', ' ', $element['#value']);
 112    $value = str_replace(' .', ' ', $value);
 113    $value = array_filter(explode(' ', $value));
 114    $value = implode(' ', $value);
 115    form_set_value($element, $value, $form_state);
 116  }
 117  
 118  function _filefield_widget_settings_file_path_validate($element, &$form_state) {
 119    // Strip slashes from the beginning and end of $widget['file_path']
 120    $form_state['values']['file_path'] = trim($form_state['values']['file_path'], '\\/');
 121  
 122    // Do not allow the file path to be the same as the file_directory_path().
 123    // This causes all sorts of problems with things like file_create_url().
 124    if (strpos($form_state['values']['file_path'], file_directory_path()) === 0) {
 125      form_error($element, t('The file path (@file_path) cannot start with the system files directory (@files_directory), as this may cause conflicts when building file URLs.', array('@file_path' => $form_state['values']['file_path'], '@files_directory' => file_directory_path())));
 126    }
 127  }
 128  
 129  function _filefield_widget_settings_max_filesize_per_file_validate($element, &$form_state) {
 130    if (empty($form_state['values']['max_filesize_per_file'])) {
 131      return; // Empty means no size restrictions, so don't throw an error.
 132    }
 133    elseif (!is_numeric(parse_size($form_state['values']['max_filesize_per_file']))) {
 134      form_error($element, t('The "@field" option must contain a valid value. You can either leave the text field empty or enter a string like "512" (bytes), "80K" (kilobytes) or "50M" (megabytes).', array('@field' => t('Maximum upload size per file'))));
 135    }
 136  }
 137  
 138  function _filefield_widget_settings_max_filesize_per_node_validate($element, &$form_state) {
 139    if (empty($form_state['values']['max_filesize_per_node'])) {
 140      return; // Empty means no size restrictions, so don't throw an error.
 141    }
 142    elseif (!is_numeric(parse_size($form_state['values']['max_filesize_per_node']))) {
 143      form_error($element, t('The "@field" option must contain a valid value. You can either leave the text field empty or enter a string like "512" (bytes), "80K" (kilobytes) or "50M" (megabytes).', array('@field' => t('Maximum upload size per node'))));
 144    }
 145  }
 146  
 147  /**
 148   * Determine the widget's files directory
 149   *
 150   * @param $field
 151   *   A CCK field array.
 152   * @param $account
 153   *   The user account object to calculate the file path for.
 154   * @return
 155   *   The files directory path, with any tokens replaced.
 156   */
 157  function filefield_widget_file_path($field, $account = NULL) {
 158    $account = isset($account) ? $account : $GLOBALS['user'];
 159    $dest = $field['widget']['file_path'];
 160    // Replace user level tokens.
 161    // Node level tokens require a lot of complexity like temporary storage
 162    // locations when values don't exist. See the filefield_paths module.
 163    if (module_exists('token')) {
 164      $dest = token_replace($dest, 'user', $account);
 165    }
 166    // Replace nasty characters in the path if possible.
 167    if (module_exists('transliteration')) {
 168      module_load_include('inc', 'transliteration');
 169      $dest_array = array_filter(explode('/', $dest));
 170      foreach ($dest_array as $key => $directory) {
 171        $dest_array[$key] = transliteration_clean_filename($directory);
 172      }
 173      $dest = implode('/', $dest_array);
 174    }
 175  
 176    return file_directory_path() .'/'. $dest;
 177  }
 178  
 179  /**
 180   * Given a FAPI element, save any files that may have been uploaded into it.
 181   *
 182   * This function should only be called during validate, submit, or
 183   * value_callback functions.
 184   *
 185   * @param $element
 186   *   The FAPI element whose values are being saved.
 187   */
 188  function filefield_save_upload($element) {
 189    $upload_name = implode('_', $element['#array_parents']);
 190    $field = content_fields($element['#field_name'], $element['#type_name']);
 191  
 192    if (empty($_FILES['files']['name'][$upload_name])) {
 193      return 0;
 194    }
 195  
 196    $dest = filefield_widget_file_path($field);
 197    if (!field_file_check_directory($dest, FILE_CREATE_DIRECTORY)) {
 198      watchdog('filefield', 'The upload directory %directory for the file field %field (content type %type) could not be created or is not accessible. A newly uploaded file could not be saved in this directory as a consequence, and the upload was canceled.', array('%directory' => $dest, '%field' => $element['#field_name'], '%type' => $element['#type_name']));
 199      form_set_error($upload_name, t('The file could not be uploaded.'));
 200      return 0;
 201    }
 202  
 203    if (!$file = field_file_save_upload($upload_name, $element['#upload_validators'], $dest)) {
 204      watchdog('filefield', 'The file upload failed. %upload', array('%upload' => $upload_name));
 205      form_set_error($upload_name, t('The file in the @field field was unable to be uploaded.', array('@field' => $element['#title'])));
 206      return 0;
 207    }
 208    return $file['fid'];
 209  }
 210  
 211  /**
 212   * The #value_callback for the filefield_widget type element.
 213   */
 214  function filefield_widget_value($element, $edit = FALSE) {
 215    if (!$edit) {
 216      $file = field_file_load($element['#default_value']['fid']);
 217      $item = $element['#default_value'];
 218    }
 219    else {
 220      $item = $edit;
 221      $field = content_fields($element['#field_name'], $element['#type_name']);
 222  
 223      // Uploads take priority over value of fid text field.
 224      if ($fid = filefield_save_upload($element)) {
 225        $item['fid'] = $fid;
 226      }
 227      // Check for #filefield_value_callback values.
 228      // Because FAPI does not allow multiple #value_callback values like it does
 229      // for #element_validate and #process, this fills the missing functionality
 230      // to allow FileField to be extended purely through FAPI.
 231      elseif (isset($element['#filefield_value_callback'])) {
 232        foreach ($element['#filefield_value_callback'] as $callback) {
 233          $callback($element, $item);
 234        }
 235      }
 236  
 237      // Load file if the FID has changed so that it can be saved by CCK.
 238      $file = field_file_load($item['fid']);
 239  
 240      // If the file entry doesn't exist, don't save anything.
 241      if (empty($file)) {
 242        $item = array();
 243      }
 244  
 245      // Checkboxes loose their value when empty.
 246      // If the list field is present make sure its unchecked value is saved.
 247      if (!empty($field['list_field']) && empty($edit['list'])) {
 248        $item['list'] = 0;
 249      }
 250    }
 251    // Merge file and item data so it is available to all widgets.
 252    if (isset($item['data']) && isset($file['data'])) {
 253      $file['data'] = array_merge($item['data'], $file['data']);
 254    }
 255    $item = array_merge($item, $file);
 256  
 257    return $item;
 258  }
 259  
 260  /**
 261   * An element #process callback for the filefield_widget field type.
 262   *
 263   * Expands the filefield_widget type to include the upload field, upload and
 264   * remove buttons, and the description field.
 265   */
 266  function filefield_widget_process($element, $edit, &$form_state, $form) {
 267    static $settings_added;
 268  
 269    $item = $element['#value'];
 270    $field_name = $element['#field_name'];
 271    $delta = $element['#delta'];
 272    $element['#theme'] = 'filefield_widget_item';
 273  
 274    $field = $form['#field_info'][$field_name];
 275  
 276    // The widget is being presented, so apply the JavaScript.
 277    drupal_add_js(drupal_get_path('module', 'filefield') .'/filefield.js');
 278    if (!isset($settings_added[$field_name]) && isset($element['#upload_validators']['filefield_validate_extensions'])) {
 279      $settings_added[$field_name] = TRUE;
 280      $settings = array(
 281        'filefield' => array(
 282          $field_name => $element['#upload_validators']['filefield_validate_extensions'][0],
 283        ),
 284      );
 285      drupal_add_js($settings, 'setting');
 286    }
 287  
 288    // Title is not necessary for each individual field.
 289    if ($field['multiple'] > 0) {
 290      unset($element['#title']);
 291    }
 292  
 293    // Set up the buttons first since we need to check if they were clicked.
 294    $element['filefield_upload'] = array(
 295      '#type' => 'submit',
 296      '#value' => t('Upload'),
 297      '#submit' => array('node_form_submit_build_node'),
 298      '#ahah' => array( // with JavaScript
 299         'path' => 'filefield/ahah/'.   $element['#type_name'] .'/'. $element['#field_name'] .'/'. $element['#delta'],
 300         'wrapper' => $element['#id'] .'-ahah-wrapper',
 301         'method' => 'replace',
 302         'effect' => 'fade',
 303      ),
 304      '#field_name' => $element['#field_name'],
 305      '#delta' => $element['#delta'],
 306      '#type_name' => $element['#type_name'],
 307      '#upload_validators' => $element['#upload_validators'],
 308      '#weight' => 100,
 309      '#post' => $element['#post'],
 310    );
 311    $element['filefield_remove'] = array(
 312      // With default CCK edit forms, $element['#parents'] is array($element['#field_name'], $element['#delta']).
 313      // However, if some module (for example, flexifield) places our widget deeper in the tree, we want to
 314      // use that information in constructing the button name.
 315      '#name' => implode('_', $element['#parents']) .'_filefield_remove',
 316      '#type' => 'submit',
 317      '#value' => t('Remove'),
 318      '#submit' => array('node_form_submit_build_node'),
 319      '#ahah' => array( // with JavaScript
 320        'path' => 'filefield/ahah/'.   $element['#type_name'] .'/'. $element['#field_name'] .'/'. $element['#delta'],
 321        'wrapper' => $element['#id'] .'-ahah-wrapper',
 322        'method' => 'replace',
 323        'effect' => 'fade',
 324      ),
 325      '#field_name' => $element['#field_name'],
 326      '#delta' => $element['#delta'],
 327      '#weight' => 101,
 328      '#post' => $element['#post'],
 329    );
 330  
 331    // Because the output of this field changes depending on the button clicked,
 332    // we need to ask FAPI immediately if the remove button was clicked.
 333    // It's not good that we call this private function, but
 334    // $form_state['clicked_button'] is only available after this #process
 335    // callback is finished.
 336    if (_form_button_was_clicked($element['filefield_remove'])) {
 337      // Delete the file if it is currently unused. Note that field_file_delete()
 338      // does a reference check in addition to our basic status check.
 339      if (isset($edit['fid'])) {
 340        $removed_file = field_file_load($edit['fid']);
 341        if ($removed_file['status'] == 0) {
 342          field_file_delete($removed_file);
 343        }
 344      }
 345      $item = array('fid' => 0, 'list' => $field['list_default'], 'data' => array('description' => ''));
 346    }
 347  
 348    // Set access on the buttons.
 349    $element['filefield_upload']['#access'] = empty($item['fid']);
 350    $element['filefield_remove']['#access'] = !empty($item['fid']);
 351  
 352    // Add progress bar support to the upload if possible.
 353    $progress_indicator = isset($field['widget']['progress_indicator']) ? $field['widget']['progress_indicator'] : 'bar';
 354    if ($progress_indicator != 'throbber' && $implementation = filefield_progress_implementation()) {
 355      $upload_progress_key = md5(mt_rand());
 356  
 357      if ($implementation == 'uploadprogress') {
 358        $element['UPLOAD_IDENTIFIER'] = array(
 359          '#type' => 'hidden',
 360          '#value' => $upload_progress_key,
 361          '#attributes' => array('class' => 'filefield-progress'),
 362        );
 363      }
 364      elseif ($implementation == 'apc') {
 365        $element['APC_UPLOAD_PROGRESS'] = array(
 366          '#type' => 'hidden',
 367          '#value' => $upload_progress_key,
 368          '#attributes' => array('class' => 'filefield-progress'),
 369        );
 370      }
 371  
 372      // Add the upload progress callback.
 373      $element['filefield_upload']['#ahah']['progress']['type'] = 'bar';
 374      $element['filefield_upload']['#ahah']['progress']['path'] = 'filefield/progress/' . $upload_progress_key;
 375    }
 376  
 377    // Set the FID.
 378    $element['fid'] = array(
 379      '#type' => 'hidden',
 380      '#value' => $item['fid'],
 381    );
 382  
 383    if ($item['fid'] != 0) {
 384      $element['preview'] = array(
 385        '#type' => 'markup',
 386        '#value' => theme('filefield_widget_preview', $item),
 387      );
 388    }
 389  
 390    // Grant access to temporary files.
 391    if ($item['fid'] && isset($item['status']) && $item['status'] == 0 && variable_get('file_downloads', FILE_DOWNLOADS_PUBLIC) == FILE_DOWNLOADS_PRIVATE) {
 392      $_SESSION['filefield_access'][] = $item['fid'];
 393    }
 394  
 395    // placeholder.. will be serialized into the data column. this is a place for widgets
 396    // to put additional data.
 397    $element['data'] = array(
 398      '#tree' => 'true',
 399      '#access' => !empty($item['fid']),
 400    );
 401  
 402    if (!empty($field['description_field'])) {
 403      $element['data']['description'] = array(
 404        '#type' => 'textfield',
 405        '#title' => t('Description'),
 406        '#value' => isset($item['data']['description']) ? $item['data']['description'] : '',
 407        '#type' => variable_get('filefield_description_type', 'textfield'),
 408        '#maxlength' => variable_get('filefield_description_length', 128),
 409      );
 410    }
 411  
 412    if (!empty($field['list_field'])) {
 413      $element['list'] = array(
 414        '#type' => empty($item['fid']) ? 'hidden' : 'checkbox',
 415        '#title' => t('List'),
 416        '#value' => isset($item['list']) && !empty($item['fid']) ? $item['list'] : $field['list_default'],
 417        '#attributes' => array('class' => 'filefield-list'),
 418      );
 419    }
 420    else {
 421      $element['list'] = array(
 422        '#type' => 'hidden',
 423        '#value' => '1',
 424      );
 425    }
 426  
 427    foreach ($element['#upload_validators'] as $callback => $arguments) {
 428      $help_func = $callback .'_help';
 429      if (function_exists($help_func)) {
 430        $desc[] = call_user_func_array($help_func, $arguments);
 431      }
 432    }
 433  
 434    $element['upload'] = array(
 435      '#name' => 'files[' . implode('_', $element['#array_parents']) . ']',
 436      '#type' => 'file',
 437      '#description' => implode('<br />', $desc),
 438      '#size' => 22,
 439      '#access' => empty($item['fid']),
 440    );
 441  
 442    $element['#attributes']['id'] = $element['#id'] .'-ahah-wrapper';
 443    $element['#prefix'] = '<div '. drupal_attributes($element['#attributes']) .'>';
 444    $element['#suffix'] = '</div>';
 445  
 446    return $element;
 447  }
 448  
 449  /**
 450   * An #element_validate callback for the filefield_widget field.
 451   */
 452  function filefield_widget_validate(&$element, &$form_state) {
 453    // If referencing an existing file, only allow if there are existing
 454    // references. This prevents unmanaged files (outside of FileField) from
 455    // being deleted if this node were to be deleted.
 456    if (!empty($element['fid']['#value'])) {
 457      $field = content_fields($element['#field_name'], $element['#type_name']);
 458      if ($file = field_file_load($element['fid']['#value'])) {
 459        $file = (object) $file;
 460        if ($file->status == FILE_STATUS_PERMANENT) {
 461          if (field_file_references($file) == 0) {
 462            form_error($element, t('Referencing to the file used in the %field field is not allowed.', array('%field' => $element['#title'])));
 463          }
 464        }
 465      }
 466      else {
 467        form_error($element, t('The file referenced by the %field field does not exist.', array('%field' => $element['#title'])));
 468      }
 469    }
 470  }
 471  
 472  /**
 473   * FormAPI theme function. Theme the output of an image field.
 474   */
 475  function theme_filefield_widget($element) {
 476    $element['#id'] .= '-upload'; // Link the label to the upload field.
 477    return theme('form_element', $element, $element['#children']);
 478  }
 479  
 480  function theme_filefield_widget_preview($item) {
 481    // Remove the current description so that we get the filename as the link.
 482    if (isset($item['data']['description'])) {
 483      unset($item['data']['description']);
 484    }
 485  
 486    return '<div class="filefield-file-info">'.
 487             '<div class="filename">'. theme('filefield_file', $item) .'</div>'.
 488             '<div class="filesize">'. format_size($item['filesize']) .'</div>'.
 489             '<div class="filemime">'. $item['filemime'] .'</div>'.
 490           '</div>';
 491  }
 492  
 493  function theme_filefield_widget_item($element) {
 494    // Put the upload button directly after the upload field.
 495    $element['upload']['#field_suffix'] = drupal_render($element['filefield_upload']);
 496    $element['upload']['#theme'] = 'filefield_widget_file';
 497  
 498    $output = '';
 499    $output .= '<div class="filefield-element clear-block">';
 500  
 501    if ($element['fid']['#value'] != 0) {
 502      $output .= '<div class="widget-preview">';
 503      $output .= drupal_render($element['preview']);
 504      $output .= '</div>';
 505    }
 506  
 507    $output .= '<div class="widget-edit">';
 508    $output .=  drupal_render($element);
 509    $output .= '</div>';
 510    $output .= '</div>';
 511  
 512    return $output;
 513  }
 514  
 515  /**
 516   * Custom theme function for FileField upload elements.
 517   *
 518   * This function allows us to put the "Upload" button immediately after the
 519   * file upload field by respecting the #field_suffix property.
 520   */
 521  function theme_filefield_widget_file($element) {
 522    $output = '';
 523  
 524    $output .= '<div class="filefield-upload clear-block">';
 525  
 526    if (isset($element['#field_prefix'])) {
 527      $output .= $element['#field_prefix'];
 528    }
 529  
 530    _form_set_class($element, array('form-file'));
 531    $output .= '<input type="file" name="'. $element['#name'] .'"'. ($element['#attributes'] ? ' '. drupal_attributes($element['#attributes']) : '') .' id="'. $element['#id'] .'" size="'. $element['#size'] ."\" />\n";
 532  
 533    if (isset($element['#field_suffix'])) {
 534      $output .= $element['#field_suffix'];
 535    }
 536  
 537    $output .= '</div>';
 538  
 539    return theme('form_element', $element, $output);
 540  }
 541  
 542  /**
 543   * Additional #validate handler for the node form.
 544   *
 545   * This function checks the #required properties on file fields and calculates
 546   * node upload totals for all file fields. The #required property is not
 547   * properly supported on file fields by Drupal core, so we do this manually.
 548   */
 549  function filefield_node_form_validate($form, &$form_state) {
 550    foreach ($form['#field_info'] as $field_name => $field) {
 551      if (!(in_array($field['module'], array('imagefield', 'filefield')))) continue;
 552      $empty = $field['module'] .'_content_is_empty';
 553      $valid = FALSE;
 554      $total_filesize = 0;
 555      if (!empty($form_state['values'][$field_name])) {
 556        foreach ($form_state['values'][$field_name] as $delta => $item) {
 557          if ($empty($item, $field)) continue;
 558          $valid = TRUE;
 559          $total_filesize += (int)$item['filesize'];
 560        }
 561      }
 562  
 563      if (!$valid && $field['required'] && filefield_edit_access($field['type_name'], $field_name)) {
 564        form_set_error($field_name, t('%title field is required.', array('%title' => $field['widget']['label'])));
 565      }
 566      $max_filesize = parse_size($field['widget']['max_filesize_per_node']);
 567      if ($max_filesize && $total_filesize > $max_filesize) {
 568        form_set_error($field_name, t('Total filesize for %title, %tsize, exceeds field settings of %msize.',
 569                                      array(
 570                                        '%title' => $field['widget']['label'],
 571                                        '%tsize' => format_size($total_filesize),
 572                                        '%msize' => format_size($max_filesize)
 573                                      )
 574                                    ));
 575      }
 576    }
 577  }