mirror of
https://github.com/phpbb/phpbb.git
synced 2025-02-08 01:35:17 +01:00
84 lines
2.5 KiB
PHP
84 lines
2.5 KiB
PHP
<?php
|
|
//
|
|
// Security message:
|
|
//
|
|
// This script is potentially dangerous.
|
|
// Remove or comment the next line (die(".... ) to enable this script.
|
|
// Do NOT FORGET to either remove this script or disable it after you have used it.
|
|
//
|
|
die("Please read the first lines of this script for instructions on how to enable it");
|
|
|
|
|
|
// IP regular expressions
|
|
|
|
$dec_octet = '(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])';
|
|
$h16 = '[\dA-F]{1,4}';
|
|
$ipv4 = "(?:$dec_octet\.){3}$dec_octet";
|
|
$ls32 = "(?:$h16:$h16|$ipv4)";
|
|
|
|
$ipv6_construct = array(
|
|
array(false, '', '{6}', $ls32),
|
|
array(false, '::', '{0,5}', "(?:$h16(?::$h16)?|$ipv4)"),
|
|
array('', ':', '{4}', $ls32),
|
|
array('{1,2}', ':', '{3}', $ls32),
|
|
array('{1,3}', ':', '{2}', $ls32),
|
|
array('{1,4}', ':', '', $ls32),
|
|
array('{1,5}', ':', false, $ls32),
|
|
array('{1,6}', ':', false, $h16),
|
|
array('{1,7}', ':', false, ''),
|
|
array(false, '::', false, '')
|
|
);
|
|
|
|
$ipv6 = '(?:';
|
|
foreach ($ipv6_construct as $ip_type)
|
|
{
|
|
$ipv6 .= '(?:';
|
|
if ($ip_type[0] !== false)
|
|
{
|
|
$ipv6 .= "(?:$h16:)" . $ip_type[0];
|
|
}
|
|
$ipv6 .= $ip_type[1];
|
|
if ($ip_type[2] !== false)
|
|
{
|
|
$ipv6 .= "(?:$h16:)" . $ip_type[2];
|
|
}
|
|
$ipv6 .= $ip_type[3] . ')|';
|
|
}
|
|
$ipv6 = substr($ipv6, 0, -1) . ')';
|
|
|
|
echo 'IPv4: ' . $ipv4 . "<br />\nIPv6: " . $ipv6 . "<br />\n";
|
|
|
|
// URL regular expressions
|
|
|
|
$pct_encoded = "%[\dA-F]{2}";
|
|
$unreserved = 'a-z0-9\-._~';
|
|
$sub_delims = '!$&\'()*+,;=';
|
|
$pchar = "(?:[$unreserved$sub_delims:@|]+|$pct_encoded)"; // rfc: no "|"
|
|
|
|
$scheme = '[a-z][a-z\d+\-.]*';
|
|
$reg_name = "(?:[$unreserved$sub_delims:@|]+|$pct_encoded)+"; // rfc: * instead of + and no "|" and no "@" and no ":" (included instead of userinfo)
|
|
//$userinfo = "(?:(?:[$unreserved$sub_delims:]+|$pct_encoded))*";
|
|
$ipv4_simple = '[0-9.]+';
|
|
$ipv6_simple = '\[[a-z0-9.]+:[a-z0-9.]+:[a-z0-9.:]+\]';
|
|
$host = "(?:$reg_name|$ipv4_simple|$ipv6_simple)";
|
|
$port = '\d*';
|
|
//$authority = "(?:$userinfo@)?$host(?::$port)?";
|
|
$authority = "$host(?::$port)?";
|
|
$segment = "$pchar*";
|
|
$path_abempty = "(?:/$segment)*";
|
|
$hier_part = "/{2}$authority$path_abempty";
|
|
$query = "(?:[$unreserved$sub_delims:@/?|]+|$pct_encoded)*"; // pchar | "/" | "?", rfc: no "|"
|
|
$fragment = $query;
|
|
|
|
$url = "$scheme:$hier_part(?:\?$query)?(?:\#$fragment)?";
|
|
echo 'URL: ' . $url . "<br />\n";
|
|
|
|
// no scheme, shortened authority, but host has to start with www.
|
|
$www_url = "www\.$reg_name(?::$port)?$path_abempty(?:\?$query)?(?:\#$fragment)?";
|
|
echo 'www.URL: ' . $www_url . "<br />\n";
|
|
|
|
// no schema and no authority
|
|
$relative_url = "$segment$path_abempty(?:\?$query)?(?:\#$fragment)?";
|
|
echo 'relative URL: ' . $relative_url . "<br />\n";
|
|
|
|
?>
|