<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
return false;
}
+ /**
+ * Checks if the provided url is on the list of domains where redirects are blocked.
+ * Returns true if it is or malformed URL, false if not.
+ *
+ * @param string $url The url to check the domain from
+ *
+ * @return boolean
+ */
+ public static function isRedirectBlocked(string $url)
+ {
+ $host = @parse_url($url, PHP_URL_HOST);
+ if (!$host) {
+ return false;
+ }
+
+ $no_redirect_list = DI::config()->get('system', 'no_redirect_list', []);
+ if (!$no_redirect_list) {
+ return false;
+ }
+
+ foreach ($no_redirect_list as $no_redirect) {
+ if (fnmatch(strtolower($no_redirect), strtolower($host))) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
/**
* Check if email address is allowed to register here.
*
exit;
}
}
+
+ /**
+ * Check if the given URL is a local link
+ *
+ * @param string $url
+ * @return bool
+ */
+ public static function isLocalLink(string $url)
+ {
+ return (strpos(Strings::normaliseLink($url), Strings::normaliseLink(DI::baseUrl())) !== false);
+ }
}