function taxonomy_image_validate_external in Taxonomy Image 6

Check an external link.

1 string reference to 'taxonomy_image_validate_external'

taxonomy_image_form_alter in ./taxonomy_image.module

File

./taxonomy_image.module, line 594

taxonomy_image.module Simple module for providing an association between taxonomy terms and images. Written by Jeremy Andrews <jeremy@kerneltrap.org>, May 2004.

Code

function taxonomy_image_validate_external($form, &$form_state) {
  if (empty($form_state['values']['taxonomy_image_external'])) {
    return;
  }
  $url = $form_state['values']['taxonomy_image_external'];
  if (!valid_url($url)) {
    form_set_error('taxonomy_image_external', t('The URL (@url) you entered does not appear to be valid.', array(
      '@url' => $url,
    )));
    return;
  }
  $pieces = parse_url($form_state['values']['taxonomy_image_external']);
  if ($pieces['scheme'] != 'http' && $pieces['scheme'] != 'https') {
    form_set_error('taxonomy_image_external', t('The URL (@url) you entered does not appear to be valid.', array(
      '@url' => $url,
    )));
    return;
  }

  // Find the stuff after the last period (file type).
  $type = drupal_strtolower(substr($pieces['path'], strrpos($pieces['path'], '.') + 1));
  $permitted = explode(' ', TAXONOMY_IMAGE_IMAGE_EXTENSIONS);
  if (!in_array($type, $permitted)) {
    form_set_error('taxonomy_image_external', t('The URL (@url) you entered does not point to a valid image file (@exts).', array(
      '@url' => $url,
      '@exts' => TAXONOMY_IMAGE_IMAGE_EXTENSIONS,
    )));
  }
}