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htmlpurifier/library/HTMLPurifier/URIScheme/ftp.php
2006-10-27 01:20:10 +00:00

44 lines
1.5 KiB
PHP

<?php
require_once 'HTMLPurifier/URIScheme.php';
/**
* Validates ftp (File Transfer Protocol) URIs as defined by generic RFC 1738.
*/
class HTMLPurifier_URIScheme_ftp extends HTMLPurifier_URIScheme {
var $default_port = 21;
function validateComponents(
$userinfo, $host, $port, $path, $query, $config, &$context
) {
list($userinfo, $host, $port, $path, $query) =
parent::validateComponents(
$userinfo, $host, $port, $path, $query, $config, $context );
$semicolon_pos = strrpos($path, ';'); // reverse
if ($semicolon_pos !== false) {
// typecode check
$type = substr($path, $semicolon_pos + 1); // no semicolon
$path = substr($path, 0, $semicolon_pos);
$type_ret = '';
if (strpos($type, '=') !== false) {
// figure out whether or not the declaration is correct
list($key, $typecode) = explode('=', $type, 2);
if ($key !== 'type') {
// invalid key, tack it back on encoded
$path .= '%3B' . $type;
} elseif ($typecode === 'a' || $typecode === 'i' || $typecode === 'd') {
$type_ret = ";type=$typecode";
}
} else {
$path .= '%3B' . $type;
}
$path = str_replace(';', '%3B', $path);
$path .= $type_ret;
}
return array($userinfo, $host, $port, $path, null);
}
}
?>