diff options
Diffstat (limited to 'lib/lib_rss.php')
| -rw-r--r-- | lib/lib_rss.php | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/lib/lib_rss.php b/lib/lib_rss.php index 5f460862e..44123b746 100644 --- a/lib/lib_rss.php +++ b/lib/lib_rss.php @@ -21,6 +21,12 @@ if (!function_exists('json_encode')) { defined('JSON_UNESCAPED_UNICODE') or define('JSON_UNESCAPED_UNICODE', 256); //PHP 5.3 +if (!function_exists('mb_strcut')) { + function mb_strcut($str, $start, $length = null, $encoding = 'UTF-8') { + return substr($str, $start, $length); + } +} + /** * Build a directory path by concatenating a list of directory names. * @@ -103,24 +109,29 @@ function safe_ascii($text) { * localhost address. * * @param $address the address to test, can be an IP or a URL. - * @return true if server is accessible, false else. + * @return true if server is accessible, false otherwise. * @todo improve test with a more valid technique (e.g. test with an external server?) */ function server_is_public($address) { $host = parse_url($address, PHP_URL_HOST); $is_public = !in_array($host, array( - '127.0.0.1', 'localhost', 'localhost.localdomain', '[::1]', + 'ip6-localhost', 'localhost6', 'localhost6.localdomain6', )); - return $is_public; -} + if ($is_public) { + $ip = gethostbyname($host); + $is_public &= !preg_match('/^(10|127|172[.]16|192[.]168)[.]/', $ip); + $is_public &= !preg_match('/^(\[)?(::1$|fc00::|fe80::)/i', $ip); + } + return (bool)$is_public; +} function format_number($n, $precision = 0) { // number_format does not seem to be Unicode-compatible @@ -405,6 +416,7 @@ function check_install_php() { 'fileinfo' => extension_loaded('fileinfo'), 'dom' => class_exists('DOMDocument'), 'json' => extension_loaded('json'), + 'mbstring' => extension_loaded('mbstring'), 'zip' => extension_loaded('zip'), ); } |