function _disclaimer_visibility in Disclaimer 7

Same name and namespace in other branches

1. 6.2 disclaimer.module \_disclaimer_visibility()
2. 6 disclaimer.module \_disclaimer_visibility()

Calculate visibility of disclaimer if set.

This is a copy from block.module (~807), thanks for the original code.

Return value

bool Page match or not.

1 call to _disclaimer_visibility()

disclaimer_show in ./disclaimer.module

Function to control disclaimer display depending user and accesses.

File

./disclaimer.module, line 293

Create and show disclaimer for your site.

Code

function _disclaimer_visibility() {
  $separator = "\n";
  $negator = '!';
  $visibility = variable_get('disclaimer_visibility', 0);
  $pages = variable_get('disclaimer_pages', implode($separator, array(
    'admin',
    'user',
  )));
  $pages = array_map('trim', explode($separator, $pages));
  $not_pages = implode($separator, array_map(static function ($pattern) {
    return substr($pattern, 1);
  }, array_filter($pages, static function ($pattern) use ($negator) {
    return $pattern[0] === $negator;
  })));
  $pages = implode($separator, array_filter($pages, static function ($pattern) use ($negator) {
    return $pattern[0] !== $negator;
  }));

  // Convert path to lowercase. This allows comparison of the same path
  // with different case. Ex: /Page, /page, /PAGE.
  $pages = drupal_strtolower($pages);
  $not_pages = drupal_strtolower($not_pages);
  if ($visibility < 2) {
    $q = $_GET['q'];

    // Convert the Drupal path to lowercase.
    $path = drupal_strtolower(drupal_get_path_alias($q));

    // Compare the lowercase internal and lowercase path alias (if any).
    $page_match = drupal_match_path($path, $pages) && !drupal_match_path($path, $not_pages);
    if ($path !== $q) {
      $page_match = $page_match || drupal_match_path($q, $pages) && !drupal_match_path($q, $not_pages);
    }

    // When $visibility has a value of 0,
    // the disclaimer is displayed on all pages except those listed in $pages.
    // When set to 1, it is displayed only on those
    // pages listed in $pages.
    $page_match = !($visibility xor $page_match);
  }
  elseif (module_exists('php')) {
    $page_match = php_eval($pages);
  }
  else {
    $page_match = FALSE;
  }
  return $page_match;
}