lib/htmlpurifier/library/HTMLPurifier/URIScheme/ftp.php

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