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     /**
   9      * @type int
  10      */
  11     public $default_port = 21;
  12
  13     /**
  14      * @type bool
  15      */
  16     public $browsable = true; // usually
  17
  18     /**
  19      * @type bool
  20      */
  21     public $hierarchical = true;
  22
  23     /**
  24      * @param HTMLPurifier_URI $uri
  25      * @param HTMLPurifier_Config $config
  26      * @param HTMLPurifier_Context $context
  27      * @return bool
  28      */
  29     public function doValidate(&$uri, $config, $context)
  30     {
  31         $uri->query = null;
  32
  33         // typecode check
  34         $semicolon_pos = strrpos($uri->path, ';'); // reverse
  35         if ($semicolon_pos !== false) {
  36             $type = substr($uri->path, $semicolon_pos + 1); // no semicolon
  37             $uri->path = substr($uri->path, 0, $semicolon_pos);
  38             $type_ret = '';
  39             if (strpos($type, '=') !== false) {
  40                 // figure out whether or not the declaration is correct
  41                 list($key, $typecode) = explode('=', $type, 2);
  42                 if ($key !== 'type') {
  43                     // invalid key, tack it back on encoded
  44                     $uri->path .= '%3B' . $type;
  45                 } elseif ($typecode === 'a' || $typecode === 'i' || $typecode === 'd') {
  46                     $type_ret = ";type=$typecode";
  47                 }
  48             } else {
  49                 $uri->path .= '%3B' . $type;
  50             }
  51             $uri->path = str_replace(';', '%3B', $uri->path);
  52             $uri->path .= $type_ret;
  53         }
  54         return true;
  55     }
  56 }
  57
  58 // vim: et sw=4 sts=4