| // | Christian Stocker | // +----------------------------------------------------------------------+ // // /** * helper class for parsing PROPFIND request bodies * * @package HTTP_WebDAV_Server * @author Hartmut Holzgraefe * @version 0.99.1dev */ class _parse_propfind { /** * success state flag * * @var bool * @access public */ var $success = false; /** * found properties are collected here * * @var array * @access public */ var $props = false; /** * internal tag nesting depth counter * * @var int * @access private */ var $depth = 0; /** * constructor * * @access public */ function _parse_propfind($path) { // success state flag $this->success = true; // property storage array $this->props = array(); // internal tag depth counter $this->depth = 0; // remember if any input was parsed $had_input = false; // open input stream $f_in = fopen($path, "r"); if (!$f_in) { $this->success = false; return; } // create XML parser $xml_parser = xml_parser_create_ns("UTF-8", " "); // set tag and data handlers xml_set_element_handler($xml_parser, array(&$this, "_startElement"), array(&$this, "_endElement")); // we want a case sensitive parser xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, false); // parse input while($this->success && !feof($f_in)) { $line = fgets($f_in); if (is_string($line)) { $had_input = true; $this->success &= xml_parse($xml_parser, $line, false); } } // finish parsing if($had_input) { $this->success &= xml_parse($xml_parser, "", true); } // free parser xml_parser_free($xml_parser); // close input stream fclose($f_in); // if no input was parsed it was a request if(!count($this->props)) $this->props = "all"; // default } /** * start tag handler * * @access private * @param resource parser * @param string tag name * @param array tag attributes */ function _startElement($parser, $name, $attrs) { // name space handling if (strstr($name, " ")) { list($ns, $tag) = explode(" ", $name); if ($ns == "") $this->success = false; } else { $ns = ""; $tag = $name; } // special tags at level 1: and if ($this->depth == 1) { if ($tag == "allprop") $this->props = "all"; if ($tag == "propname") $this->props = "names"; } // requested properties are found at level 2 if ($this->depth == 2) { $prop = array("name" => $tag); if ($ns) $prop["xmlns"] = $ns; $this->props[] = $prop; } // increment depth count $this->depth++; } /** * end tag handler * * @access private * @param resource parser * @param string tag name */ function _endElement($parser, $name) { // here we only need to decrement the depth count $this->depth--; } } ?>