<?php /** * Validates ftp (File Transfer Protocol) URIs as defined by generic RFC 1738. */ class HTMLPurifier_URIScheme_ftp extends HTMLPurifier_URIScheme { public $default_port = 21; public $browsable = true; // usually public $hierarchical = true; public function validate(&$uri, $config, $context) { parent::validate($uri, $config, $context); $uri->query = null; // typecode check $semicolon_pos = strrpos($uri->path, ';'); // reverse if ($semicolon_pos !== false) { $type = substr($uri->path, $semicolon_pos + 1); // no semicolon $uri->path = substr($uri->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 $uri->path .= '%3B' . $type; } elseif ($typecode === 'a' || $typecode === 'i' || $typecode === 'd') { $type_ret = ";type=$typecode"; } } else { $uri->path .= '%3B' . $type; } $uri->path = str_replace(';', '%3B', $uri->path); $uri->path .= $type_ret; } return true; } } // vim: et sw=4 sts=4