media_url_filter

gistfile1.aw

<?php

// This code was removed from Media module as it was no longer used and does not work.
// Removed via http://drupal.org/node/1268268

/**
 *  Filter callback for media url filter.
 *  @TODO: There are currently problems with this. For instance, if a file is
 *  to be loaded from a remote location here, it will be recreated multiple
 *  times, each time this filter is called. If we want to continue supporting
 *  this feature, we would need to probably create a new stream or other way
 *  to lookup a remote file w/ its local version. Probably best as a contributed
 *  module because of this difficulty. ~ aaron.
 */
function media_url_filter($text, $filter) {
  $text = ' ' . $text . ' ';

  // Need to attach the variables to the callback after the regex.
  $callback = _media_url_curry('_media_url_parse_full_links', 1);

  // Match absolute URLs.
  $text = preg_replace_callback("`(<p>|<li>|<br\s*/?>|[ \n\r\t\(])((http://|https://)([a-zA-Z0-9@:%_+*~#?&=.,/;-]*[a-zA-Z0-9@:%_+*~#&=/;-]))([.,?!]*?)(?=(</p>|</li>|<br\s*/?>|[ \n\r\t\)]))`i", $callback, $text);

  return $text;
}

/**
 * If one of our allowed providers knows what to do with the url,
 * then let it embed the video.
 *
 * @param int $filter
 *  The filter id.
 * @param array $match
 *  The matched text from our regex.
 *
 * @return string
 *  The replacement text for the url.
 */
function _media_url_parse_full_links($match) {
  // Get just the URL.
  $match[2] = check_url(decode_entities($match[2]));
  try {
    $file = media_parse_to_file($match[2]);
  }
  catch (Exception $e) {
    // Ignore errors; pass the original text for other filters to deal with.
    return $match[0];
  }

  if ($file->fid) {
    $file = file_load($file->fid);

    // Generate a preview of the file
    // @TODO: Allow user to change the formatter in the filter settings.
    $preview = file_view_file($file, 'media_large');
    $preview['#show_names'] = TRUE;

    return drupal_render($preview);
  }

  // Nothing was parsed; return the original text.
  return $match[0];
}

function _media_url_curry($func, $arity) {
  return create_function('', "
    \$args = func_get_args();
    if(count(\$args) >= $arity)
        return call_user_func_array('$func', \$args);
    \$args = var_export(\$args, 1);
    return create_function('','
        \$a = func_get_args();
        \$z = ' . \$args . ';
        \$a = array_merge(\$z,\$a);
        return call_user_func_array(\'$func\', \$a);
    ');
  ");
}