allow_all_file_extensions.module in Allow All File Extensions 7

File

allow_all_file_extensions.module

<?php

/**
 * Implements hook_form_FORM_ID_alter().
 */
function allow_all_file_extensions_form_field_ui_field_edit_form_alter(&$form, &$form_state, $form_id) {
  if ($form['#field']['type'] === 'file') {
    $form['instance']['settings']['file_extensions']['#type'] = 'textarea';
    $form['instance']['settings']['file_extensions']['#description'] = t('Separate extensions with a space or comma and do not include the leading dot.  Leave this blank to allow all file types <strong>(security warning: only trusted users should be able to upload files of arbitrary type)</strong>.');
    $form['instance']['settings']['file_extensions']['#maxlength'] = 2048;
    $form['instance']['settings']['file_extensions']['#required'] = FALSE;
  }
}

/**
 * Implements hook_form_alter().
 */
function allow_all_file_extensions_form_alter(&$form, &$form_state, $form_id) {
  _allow_all_file_extensions_fix_validator($form);
}

/**
 * This ugly little hack of a function recursively crawls through the form and adds
 * an empty file_validate_extensions array to every managed_file element that doesn't
 * already contain one.  I shouldn't have had to do it this way, but unfortunately
 * Drupal 7's smarter-than-you file extension validation code is added while the form
 * is being generated, so there's really no other way.
 */
function _allow_all_file_extensions_fix_validator(&$element) {
  if (isset($element)) {
    if (isset($element['#type']) && ($element['#type'] === 'managed_file' || $element['#type'] === 'mfw_managed_file')) {
      if (!isset($element['#upload_validators']['file_validate_extensions'])) {
        $element['#upload_validators']['file_validate_extensions'] = array();
      }
    }
    $children = element_children($element);
    if (is_array($children)) {
      foreach ($children as $child) {
        _allow_all_file_extensions_fix_validator($element[$child]);
      }
    }
  }
}

Functions

Name	Description
allow_all_file_extensions_form_alter	Implements hook_form_alter().
allow_all_file_extensions_form_field_ui_field_edit_form_alter	Implements hook_form_FORM_ID_alter().
_allow_all_file_extensions_fix_validator	This ugly little hack of a function recursively crawls through the form and adds an empty file_validate_extensions array to every managed_file element that doesn't already contain one. I shouldn't have had to do it this way, but…