_parse_proppatch.php

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<?php
/*
 * @author Anakeen
 * @package FDL
*/
/**
 * helper class for parsing PROPPATCH request bodies
 *
 * @package FDL
 * @author Hartmut Holzgraefe <hholzgra@php.net>
 * @version @package-version@
 */
/**
 */
//
// +----------------------------------------------------------------------+
// | PHP Version 4                                                        |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group                                |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license,      |
// | that is bundled with this package in the file LICENSE, and is        |
// | available at through the world-wide-web at                           |
// | http://www.php.net/license/2_02.txt.                                 |
// | If you did not receive a copy of the PHP license and are unable to   |
// | obtain it through the world-wide-web, please send a note to          |
// | license@php.net so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
// |          Christian Stocker <chregu@bitflux.ch>                       |
// +----------------------------------------------------------------------+
//
// $Id: _parse_proppatch.php,v 1.1 2006/11/22 10:33:59 eric Exp $
//
class _parse_proppatch
{
    /**
     *
     *
     * @var
     * @access
     */
    var $success;
    /**
     *
     *
     * @var
     * @access
     */
    var $props;
    /**
     *
     *
     * @var
     * @access
     */
    var $depth;
    /**
     *
     *
     * @var
     * @access
     */
    var $mode;
    /**
     *
     *
     * @var
     * @access
     */
    var $current;
    /**
     * constructor
     *
     * @param  string  path of input stream
     * @access public
     */
    function _parse_proppatch($path)
    {
        $this->success = true;
        
        $this->depth = 0;
        $this->props = array();
        $had_input = false;
        
        $f_in = fopen($path, "r");
        if (!$f_in) {
            $this->success = false;
            return;
        }
        
        $xml_parser = xml_parser_create_ns("UTF-8", " ");
        
        xml_set_element_handler($xml_parser, array(&$this,
            "_startElement"
        ) , array(&$this,
            "_endElement"
        ));
        
        xml_set_character_data_handler($xml_parser, array(&$this,
            "_data"
        ));
        
        xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, false);
        
        while ($this->success && !feof($f_in)) {
            $line = fgets($f_in);
            if (is_string($line)) {
                $had_input = true;
                $this->success&= xml_parse($xml_parser, $line, false);
            }
        }
        
        if ($had_input) {
            $this->success&= xml_parse($xml_parser, "", true);
        }
        
        xml_parser_free($xml_parser);
        
        fclose($f_in);
    }
    /**
     * tag start handler
     *
     * @param  resource  parser
     * @param  string    tag name
     * @param  array     tag attributes
     * @return void
     * @access private
     */
    function _startElement($parser, $name, $attrs)
    {
        if (strstr($name, " ")) {
            list($ns, $tag) = explode(" ", $name);
            if ($ns == "") $this->success = false;
        } else {
            $ns = "";
            $tag = $name;
        }
        
        if ($this->depth == 1) {
            $this->mode = $tag;
        }
        
        if ($this->depth == 3) {
            $prop = array(
                "name" => $tag
            );
            $this->current = array(
                "name" => $tag,
                "ns" => $ns,
                "status" => 200
            );
            if ($this->mode == "set") {
                $this->current["val"] = ""; // default set val
                
            }
        }
        
        if ($this->depth >= 4) {
            $this->current["val"].= "<$tag";
            if (isset($attr)) {
                foreach ($attr as $key => $val) {
                    $this->current["val"].= ' ' . $key . '="' . str_replace('"', '&quot;', $val) . '"';
                }
            }
            $this->current["val"].= ">";
        }
        
        $this->depth++;
    }
    /**
     * tag end handler
     *
     * @param  resource  parser
     * @param  string    tag name
     * @return void
     * @access private
     */
    function _endElement($parser, $name)
    {
        if (strstr($name, " ")) {
            list($ns, $tag) = explode(" ", $name);
            if ($ns == "") $this->success = false;
        } else {
            $ns = "";
            $tag = $name;
        }
        
        $this->depth--;
        
        if ($this->depth >= 4) {
            $this->current["val"].= "</$tag>";
        }
        
        if ($this->depth == 3) {
            if (isset($this->current)) {
                $this->props[] = $this->current;
                unset($this->current);
            }
        }
    }
    /**
     * input data handler
     *
     * @param  resource  parser
     * @param  string    data
     * @return void
     * @access private
     */
    function _data($parser, $data)
    {
        if (isset($this->current)) {
            $this->current["val"].= $data;
        }
    }
}
/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * indent-tabs-mode:nil
 * End:
*/