function spam_url_limit in Spam 5

Check if content has two many total urls, or if the same base url is repeated too many times.

Parameters

$url An array indicating how many time each url is found in the : content, as generated by spam_urls_count().

Return value

Weighted added to spam probability, if any.

1 call to spam_url_limit()

spam_content_filter in ./spam.module

Determine whether or not provided text is spam.

File

./spam.module, line 1379

Code

function spam_url_limit($urls = array()) {
  $weight = 0;
  $limit = variable_get('spam_urls_total', 10);
  if ($limit > -1) {
    if ($urls['total'] > $limit) {
      $weight += WEIGHT_ALWAYS_SPAM;
      spam_log(SPAM_LOG, t("url limit: total of @num urls, adding weight of @weight", array(
        '@num' => $urls['total'],
        '@weight' => WEIGHT_ALWAYS_SPAM,
      )));
    }
  }
  $limit = variable_get('spam_urls_repeat', 5);
  if ($limit > -1) {
    asort($urls);

    // skip past urls['total']
    array_pop($urls);
    $max = array_pop($urls);
    if ($max > $limit) {
      $weight += WEIGHT_ALWAYS_SPAM;
      spam_log(SPAM_LOG, t("url limit: repeated one url @num times, adding weight of @weight", array(
        '@num' => $max,
        '@weight' => WEIGHT_ALWAYS_SPAM,
      )));
    }
  }
  return $weight;
}