178 lines
4.0 KiB
PHP
Executable File
178 lines
4.0 KiB
PHP
Executable File
<?php
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//
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.02 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Hartmut Holzgraefe <hholzgra@php.net> |
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// | Christian Stocker <chregu@bitflux.ch> |
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// +----------------------------------------------------------------------+
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//
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// $Id: _parse_propfind.php,v 1.2 2004/01/05 12:33:22 hholzgra Exp $
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//
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/**
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* helper class for parsing PROPFIND request bodies
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*
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* @package HTTP_WebDAV_Server
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* @author Hartmut Holzgraefe <hholzgra@php.net>
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* @version 0.99.1dev
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*/
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class _parse_propfind
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{
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/**
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* success state flag
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*
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* @var bool
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* @access public
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*/
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var $success = false;
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/**
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* found properties are collected here
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*
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* @var array
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* @access public
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*/
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var $props = false;
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/**
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* internal tag nesting depth counter
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*
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* @var int
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* @access private
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*/
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var $depth = 0;
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/**
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* constructor
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*
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* @access public
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*/
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function _parse_propfind($path)
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{
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// success state flag
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$this->success = true;
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// property storage array
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$this->props = array();
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// internal tag depth counter
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$this->depth = 0;
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// remember if any input was parsed
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$had_input = false;
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// open input stream
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$f_in = fopen($path, "r");
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if (!$f_in) {
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$this->success = false;
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return;
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}
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// create XML parser
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$xml_parser = xml_parser_create_ns("UTF-8", " ");
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// set tag and data handlers
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xml_set_element_handler($xml_parser,
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array(&$this, "_startElement"),
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array(&$this, "_endElement"));
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// we want a case sensitive parser
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xml_parser_set_option($xml_parser,
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XML_OPTION_CASE_FOLDING, false);
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// parse input
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while($this->success && !feof($f_in)) {
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$line = fgets($f_in);
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if (is_string($line)) {
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$had_input = true;
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$this->success &= xml_parse($xml_parser, $line, false);
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}
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}
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// finish parsing
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if($had_input) {
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$this->success &= xml_parse($xml_parser, "", true);
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}
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// free parser
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xml_parser_free($xml_parser);
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// close input stream
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fclose($f_in);
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// if no input was parsed it was a request
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if(!count($this->props)) $this->props = "all"; // default
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}
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/**
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* start tag handler
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*
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* @access private
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* @param resource parser
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* @param string tag name
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* @param array tag attributes
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*/
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function _startElement($parser, $name, $attrs)
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{
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// name space handling
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if (strstr($name, " ")) {
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list($ns, $tag) = explode(" ", $name);
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if ($ns == "")
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$this->success = false;
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} else {
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$ns = "";
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$tag = $name;
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}
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// special tags at level 1: <allprop> and <propname>
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if ($this->depth == 1) {
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if ($tag == "allprop")
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$this->props = "all";
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if ($tag == "propname")
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$this->props = "names";
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}
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// requested properties are found at level 2
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if ($this->depth == 2) {
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$prop = array("name" => $tag);
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if ($ns)
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$prop["xmlns"] = $ns;
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$this->props[] = $prop;
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}
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// increment depth count
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$this->depth++;
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}
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/**
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* end tag handler
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*
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* @access private
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* @param resource parser
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* @param string tag name
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*/
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function _endElement($parser, $name)
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{
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// here we only need to decrement the depth count
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$this->depth--;
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}
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}
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?>
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