include/HTTP/WebDAV/Tools/_parse_proppatch.php

   1 <?php
   2 //
   3 // +----------------------------------------------------------------------+
   4 // | PHP Version 4                                                        |
   5 // +----------------------------------------------------------------------+
   6 // | Copyright (c) 1997-2003 The PHP Group                                |
   7 // +----------------------------------------------------------------------+
   8 // | This source file is subject to version 2.02 of the PHP license,      |
   9 // | that is bundled with this package in the file LICENSE, and is        |
  10 // | available at through the world-wide-web at                           |
  11 // | http://www.php.net/license/2_02.txt.                                 |
  12 // | If you did not receive a copy of the PHP license and are unable to   |
  13 // | obtain it through the world-wide-web, please send a note to          |
  14 // | license@php.net so we can mail you a copy immediately.               |
  15 // +----------------------------------------------------------------------+
  16 // | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
  17 // |          Christian Stocker <chregu@bitflux.ch>                       |
  18 // +----------------------------------------------------------------------+
  19 //
  20 // $Id: _parse_proppatch.php,v 1.3 2004/01/05 12:41:34 hholzgra Exp $
  21 //
  22
  23 /**
  24  * helper class for parsing PROPPATCH request bodies
  25  *
  26  * @package HTTP_WebDAV_Server
  27  * @author Hartmut Holzgraefe <hholzgra@php.net>
  28  * @version 0.99.1dev
  29  */
  30 class _parse_proppatch
  31 {
  32     /**
  33      *
  34      *
  35      * @var
  36      * @access
  37      */
  38     var $success;
  39
  40     /**
  41      *
  42      *
  43      * @var
  44      * @access
  45      */
  46     var $props;
  47
  48     /**
  49      *
  50      *
  51      * @var
  52      * @access
  53      */
  54     var $depth;
  55
  56     /**
  57      *
  58      *
  59      * @var
  60      * @access
  61      */
  62     var $mode;
  63
  64     /**
  65      *
  66      *
  67      * @var
  68      * @access
  69      */
  70     var $current;
  71
  72     /**
  73      * constructor
  74      *
  75      * @param  string  path of input stream
  76      * @access public
  77      */
  78     function _parse_proppatch($path)
  79     {
  80         $this->success = true;
  81
  82         $this->depth = 0;
  83         $this->props = array();
  84         $had_input = false;
  85
  86         $f_in = fopen($path, "r");
  87         if (!$f_in) {
  88             $this->success = false;
  89             return;
  90         }
  91
  92         $xml_parser = xml_parser_create_ns("UTF-8", " ");
  93
  94         xml_set_element_handler($xml_parser,
  95                                 array(&$this, "_startElement"),
  96                                 array(&$this, "_endElement"));
  97
  98         xml_set_character_data_handler($xml_parser,
  99                                        array(&$this, "_data"));
 100
 101         xml_parser_set_option($xml_parser,
 102                               XML_OPTION_CASE_FOLDING, false);
 103
 104         while($this->success && !feof($f_in)) {
 105             $line = fgets($f_in);
 106             if (is_string($line)) {
 107                 $had_input = true;
 108                 $this->success &= xml_parse($xml_parser, $line, false);
 109             }
 110         }
 111
 112         if($had_input) {
 113             $this->success &= xml_parse($xml_parser, "", true);
 114         }
 115
 116         xml_parser_free($xml_parser);
 117
 118         fclose($f_in);
 119     }
 120
 121     /**
 122      * tag start handler
 123      *
 124      * @param  resource  parser
 125      * @param  string    tag name
 126      * @param  array     tag attributes
 127      * @return void
 128      * @access private
 129      */
 130     function _startElement($parser, $name, $attrs)
 131     {
 132         if (strstr($name, " ")) {
 133             list($ns, $tag) = explode(" ", $name);
 134             if ($ns == "")
 135                 $this->success = false;
 136         } else {
 137             $ns = "";
 138             $tag = $name;
 139         }
 140
 141         if ($this->depth == 1) {
 142             $this->mode = $tag;
 143         }
 144
 145         if ($this->depth == 3) {
 146             $prop = array("name" => $tag);
 147             $this->current = array("name" => $tag, "ns" => $ns, "status"=> 200);
 148             if ($this->mode == "set") {
 149                 $this->current["val"] = "";     // default set val
 150             }
 151         }
 152
 153         if ($this->depth >= 4) {
 154             $this->current["val"] .= "<$tag";
 155             foreach ($attr as $key => $val) {
 156                 $this->current["val"] .= ' '.$key.'="'.str_replace('"','&quot;', $val).'"';
 157             }
 158             $this->current["val"] .= ">";
 159         }
 160
 161
 162
 163         $this->depth++;
 164     }
 165
 166     /**
 167      * tag end handler
 168      *
 169      * @param  resource  parser
 170      * @param  string    tag name
 171      * @return void
 172      * @access private
 173      */
 174     function _endElement($parser, $name)
 175     {
 176         if (strstr($name, " ")) {
 177             list($ns, $tag) = explode(" ", $name);
 178             if ($ns == "")
 179                 $this->success = false;
 180         } else {
 181             $ns = "";
 182             $tag = $name;
 183         }
 184
 185         $this->depth--;
 186
 187         if ($this->depth >= 4) {
 188             $this->current["val"] .= "</$tag>";
 189         }
 190
 191         if ($this->depth == 3) {
 192             if (isset($this->current)) {
 193                 $this->props[] = $this->current;
 194                 unset($this->current);
 195             }
 196         }
 197     }
 198
 199     /**
 200      * input data handler
 201      *
 202      * @param  resource  parser
 203      * @param  string    data
 204      * @return void
 205      * @access private
 206      */
 207     function _data($parser, $data) {
 208         if (isset($this->current)) {
 209             $this->current["val"] .= $data;
 210         }
 211     }
 212 }
 213
 214 ?>