lib/htmlpurifier/HTMLPurifier/URIScheme/ftp.php

   1 <?php
   2
   3 require_once 'HTMLPurifier/URIScheme.php';
   4
   5 /**
   6  * Validates ftp (File Transfer Protocol) URIs as defined by generic RFC 1738.
   7  */
   8 class HTMLPurifier_URIScheme_ftp extends HTMLPurifier_URIScheme {
   9
  10     var $default_port = 21;
  11     var $browsable = true; // usually
  12     var $hierarchical = true;
  13
  14     function validate(&$uri, $config, &$context) {
  15         parent::validate($uri, $config, $context);
  16         $uri->query    = null;
  17
  18         // typecode check
  19         $semicolon_pos = strrpos($uri->path, ';'); // reverse
  20         if ($semicolon_pos !== false) {
  21             $type = substr($uri->path, $semicolon_pos + 1); // no semicolon
  22             $uri->path = substr($uri->path, 0, $semicolon_pos);
  23             $type_ret = '';
  24             if (strpos($type, '=') !== false) {
  25                 // figure out whether or not the declaration is correct
  26                 list($key, $typecode) = explode('=', $type, 2);
  27                 if ($key !== 'type') {
  28                     // invalid key, tack it back on encoded
  29                     $uri->path .= '%3B' . $type;
  30                 } elseif ($typecode === 'a' || $typecode === 'i' || $typecode === 'd') {
  31                     $type_ret = ";type=$typecode";
  32                 }
  33             } else {
  34                 $uri->path .= '%3B' . $type;
  35             }
  36             $uri->path = str_replace(';', '%3B', $uri->path);
  37             $uri->path .= $type_ret;
  38         }
  39
  40         return true;
  41     }
  42
  43 }
  44