| | |
| | | return false; |
| | | } |
| | | |
| | | // Check domain part |
| | | if (preg_match('/^\[*(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}\]*$/', $domain_part)) { |
| | | return true; // IP address |
| | | // Validate domain part |
| | | if (preg_match('/^\[((IPv6:[0-9a-f:.]+)|([0-9.]+))\]$/i', $domain_part, $matches)) { |
| | | return self::check_ip(preg_replace('/^IPv6:/i', '', $matches[1])); // valid IPv4 or IPv6 address |
| | | } |
| | | else { |
| | | // If not an IP address |
| | |
| | | return false; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Validates IPv4 or IPv6 address |
| | | * |
| | | * @param string $ip IP address in v4 or v6 format |
| | | * |
| | | * @return bool True if the address is valid |
| | | */ |
| | | public static function check_ip($ip) |
| | | { |
| | | // IPv6, but there's no build-in IPv6 support |
| | | if (strpos($ip, ':') !== false && !defined('AF_INET6')) { |
| | | $parts = explode(':', $domain_part); |
| | | $count = count($parts); |
| | | |
| | | if ($count > 8 || $count < 2) { |
| | | return false; |
| | | } |
| | | |
| | | foreach ($parts as $idx => $part) { |
| | | $length = strlen($part); |
| | | if (!$length) { |
| | | // there can be only one :: |
| | | if ($found_empty) { |
| | | return false; |
| | | } |
| | | $found_empty = true; |
| | | } |
| | | // last part can be an IPv4 address |
| | | else if ($idx == $count - 1) { |
| | | if (!preg_match('/^[0-9a-f]{1,4}$/i', $part)) { |
| | | return @inet_pton($part) !== false; |
| | | } |
| | | } |
| | | else if (!preg_match('/^[0-9a-f]{1,4}$/i', $part)) { |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | return true; |
| | | } |
| | | |
| | | return @inet_pton($ip) !== false; |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Check whether the HTTP referer matches the current request |
| | | * |
| | |
| | | public static function check_referer() |
| | | { |
| | | $uri = parse_url($_SERVER['REQUEST_URI']); |
| | | $referer = parse_url(rcube_request_header('Referer')); |
| | | return $referer['host'] == rcube_request_header('Host') && $referer['path'] == $uri['path']; |
| | | $referer = parse_url(self::request_header('Referer')); |
| | | return $referer['host'] == self::request_header('Host') && $referer['path'] == $uri['path']; |
| | | } |
| | | |
| | | |
| | |
| | | static $html_encode_arr = false; |
| | | static $js_rep_table = false; |
| | | static $xml_rep_table = false; |
| | | |
| | | if (!is_string($str)) { |
| | | $str = strval($str); |
| | | } |
| | | |
| | | // encode for HTML output |
| | | if ($enctype == 'html') { |
| | |
| | | } |
| | | |
| | | $out = strtr($str, $encode_arr); |
| | | |
| | | // avoid douple quotation of & |
| | | $out = preg_replace('/&([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', $out); |
| | | |
| | | return $newlines ? nl2br($out) : $out; |
| | | } |
| | |
| | | // %s - domain name after the '@' from e-mail address provided at login screen. Returns FALSE if an invalid email is provided |
| | | if (strpos($name, '%s') !== false) { |
| | | $user_email = self::get_input_value('_user', self::INPUT_POST); |
| | | $user_email = rcube_utils::idn_convert($user_email, true); |
| | | $user_email = self::idn_convert($user_email, true); |
| | | $matches = preg_match('/(.*)@([a-z0-9\.\-\[\]\:]+)/i', $user_email, $s); |
| | | if ($matches < 1 || filter_var($s[1]."@".$s[2], FILTER_VALIDATE_EMAIL) === false) { |
| | | return false; |