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 $hierarchical = true;
  11
  12     public function doValidate(&$uri, $config, $context) {
  13         $uri->query    = null;
  14
  15         // typecode check
  16         $semicolon_pos = strrpos($uri->path, ';'); // reverse
  17         if ($semicolon_pos !== false) {
  18             $type = substr($uri->path, $semicolon_pos + 1); // no semicolon
  19             $uri->path = substr($uri->path, 0, $semicolon_pos);
  20             $type_ret = '';
  21             if (strpos($type, '=') !== false) {
  22                 // figure out whether or not the declaration is correct
  23                 list($key, $typecode) = explode('=', $type, 2);
  24                 if ($key !== 'type') {
  25                     // invalid key, tack it back on encoded
  26                     $uri->path .= '%3B' . $type;
  27                 } elseif ($typecode === 'a' || $typecode === 'i' || $typecode === 'd') {
  28                     $type_ret = ";type=$typecode";
  29                 }
  30             } else {
  31                 $uri->path .= '%3B' . $type;
  32             }
  33             $uri->path = str_replace(';', '%3B', $uri->path);
  34             $uri->path .= $type_ret;
  35         }
  36
  37         return true;
  38     }
  39
  40 }
  41
  42 // vim: et sw=4 sts=4