diff options
Diffstat (limited to '3dparty/HTTP/WebDAV/Tools/_parse_propfind.php')
| -rw-r--r-- | 3dparty/HTTP/WebDAV/Tools/_parse_propfind.php | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/3dparty/HTTP/WebDAV/Tools/_parse_propfind.php b/3dparty/HTTP/WebDAV/Tools/_parse_propfind.php new file mode 100644 index 00000000000..cf72b529d97 --- /dev/null +++ b/3dparty/HTTP/WebDAV/Tools/_parse_propfind.php @@ -0,0 +1,191 @@ +<?php // $Id$ +/* + +----------------------------------------------------------------------+ + | Copyright (c) 2002-2007 Christian Stocker, Hartmut Holzgraefe | + | All rights reserved | + | | + | Redistribution and use in source and binary forms, with or without | + | modification, are permitted provided that the following conditions | + | are met: | + | | + | 1. Redistributions of source code must retain the above copyright | + | notice, this list of conditions and the following disclaimer. | + | 2. Redistributions in binary form must reproduce the above copyright | + | notice, this list of conditions and the following disclaimer in | + | the documentation and/or other materials provided with the | + | distribution. | + | 3. The names of the authors may not be used to endorse or promote | + | products derived from this software without specific prior | + | written permission. | + | | + | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | + | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | + | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | + | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | + | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | + | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | + | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | + | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | + | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | + | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | + | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | + | POSSIBILITY OF SUCH DAMAGE. | + +----------------------------------------------------------------------+ +*/ + +/** + * helper class for parsing PROPFIND request bodies + * + * @package HTTP_WebDAV_Server + * @author Hartmut Holzgraefe <hholzgra@php.net> + * @version @package-version@ + */ +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 = $name; + } + + // special tags at level 1: <allprop> and <propname> + if ($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--; + } +} + + +?> |