/**
* PROPFIND method handler
*
* @param void
* @return void
*/
function http_PROPFIND()
{
$options = array();
$options["path"] = $this->path;
// search depth from header (default is "infinity)
if (isset($_SERVER['HTTP_DEPTH'])) {
$options["depth"] = $_SERVER["HTTP_DEPTH"];
} else {
$options["depth"] = "infinity";
}
// analyze request payload
$propinfo = new _parse_propfind("php://input");
if (!$propinfo->success) {
$this->http_status("400 Error");
return;
}
$options['props'] = $propinfo->props;
// call user handler
if (!$this->propfind($options, $files)) {
$this->http_status("404 Not Found");
return;
}
// collect namespaces here
$ns_hash = array();
// Microsoft Clients need this special namespace for date and time values
$ns_defs = "xmlns:ns0=\"urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/\"";
// now we loop over all returned file entries
foreach ($files["files"] as $filekey => $file) {
// nothing to do if no properties were returend for a file
if (!isset($file["props"]) || !is_array($file["props"])) {
continue;
}
// now loop over all returned properties
foreach ($file["props"] as $key => $prop) {
// as a convenience feature we do not require that user handlers
// restrict returned properties to the requested ones
// here we strip all unrequested entries out of the response
switch ($options['props']) {
case "all":
// nothing to remove
break;
case "names":
// only the names of all existing properties were requested
// so we remove all values
unset($files["files"][$filekey]["props"][$key]["val"]);
break;
default:
$found = false;
// search property name in requested properties
foreach ((array) $options["props"] as $reqprop) {
if ($reqprop["name"] == $prop["name"] && $reqprop["xmlns"] == $prop["ns"]) {
$found = true;
break;
}
}
// unset property and continue with next one if not found/requested
if (!$found) {
$files["files"][$filekey]["props"][$key] = "";
continue 2;
}
break;
}
// namespace handling
if (empty($prop["ns"])) {
continue;
}
// no namespace
$ns = $prop["ns"];
if ($ns == "DAV:") {
continue;
}
// default namespace
if (isset($ns_hash[$ns])) {
continue;
}
// already known
// register namespace
$ns_name = "ns" . (count($ns_hash) + 1);
$ns_hash[$ns] = $ns_name;
$ns_defs .= " xmlns:{$ns_name}=\"{$ns}\"";
}
// we also need to add empty entries for properties that were requested
// but for which no values where returned by the user handler
if (is_array($options['props'])) {
foreach ($options["props"] as $reqprop) {
if ($reqprop['name'] == "") {
continue;
}
// skip empty entries
$found = false;
// check if property exists in result
foreach ($file["props"] as $prop) {
if ($reqprop["name"] == $prop["name"] && $reqprop["xmlns"] == $prop["ns"]) {
$found = true;
break;
}
}
if (!$found) {
if ($reqprop["xmlns"] === "DAV:" && $reqprop["name"] === "lockdiscovery") {
// lockdiscovery is handled by the base class
$files["files"][$filekey]["props"][] = $this->mkprop("DAV:", "lockdiscovery", $this->lockdiscovery($files["files"][$filekey]['path']));
} else {
// add empty value for this property
$files["files"][$filekey]["noprops"][] = $this->mkprop($reqprop["xmlns"], $reqprop["name"], "");
// register property namespace if not known yet
if ($reqprop["xmlns"] != "DAV:" && !isset($ns_hash[$reqprop["xmlns"]])) {
$ns_name = "ns" . (count($ns_hash) + 1);
$ns_hash[$reqprop["xmlns"]] = $ns_name;
$ns_defs .= " xmlns:{$ns_name}=\"{$reqprop['xmlns']}\"";
}
}
}
}
}
}
// now we generate the reply header ...
$this->http_status("207 Multi-Status");
header('Content-Type: text/xml; charset="utf-8"');
// ... and payload
echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
echo "<D:multistatus xmlns:D=\"DAV:\">\n";
foreach ($files["files"] as $file) {
// ignore empty or incomplete entries
if (!is_array($file) || empty($file) || !isset($file["path"])) {
continue;
}
$path = $file['path'];
if (!is_string($path) || $path === "") {
continue;
}
echo " <D:response {$ns_defs}>\n";
$href = @$_SERVER["HTTPS"] === "on" ? "https:" : "http:";
$href .= "//" . $_SERVER['HTTP_HOST'] . $_SERVER['SCRIPT_NAME'];
$href .= $path;
//TODO make sure collection resource pathes end in a trailing slash
echo " <D:href>{$href}</D:href>\n";
// report all found properties and their values (if any)
if (isset($file["props"]) && is_array($file["props"])) {
echo " <D:propstat>\n";
echo " <D:prop>\n";
foreach ($file["props"] as $key => $prop) {
if (!is_array($prop)) {
continue;
}
if (!isset($prop["name"])) {
continue;
}
if (!isset($prop["val"]) || $prop["val"] === "" || $prop["val"] === false) {
// empty properties (cannot use empty() for check as "0" is a legal value here)
if ($prop["ns"] == "DAV:") {
echo " <D:{$prop['name']}/>\n";
} else {
if (!empty($prop["ns"])) {
echo " <" . $ns_hash[$prop["ns"]] . ":{$prop['name']}/>\n";
} else {
echo " <{$prop['name']} xmlns=\"\"/>";
}
}
} else {
if ($prop["ns"] == "DAV:") {
// some WebDAV properties need special treatment
switch ($prop["name"]) {
case "creationdate":
echo " <D:creationdate ns0:dt=\"dateTime.tz\">" . gmdate("Y-m-d\\TH:i:s\\Z", $prop['val']) . "</D:creationdate>\n";
break;
case "getlastmodified":
echo " <D:getlastmodified ns0:dt=\"dateTime.rfc1123\">" . TimeDate::httptime($prop['val']) . "</D:getlastmodified>\n";
break;
case "resourcetype":
echo " <D:resourcetype><D:{$prop['val']}/></D:resourcetype>\n";
break;
case "supportedlock":
echo " <D:supportedlock>{$prop['val']}</D:supportedlock>\n";
break;
case "lockdiscovery":
echo " <D:lockdiscovery>\n";
echo $prop["val"];
echo " </D:lockdiscovery>\n";
break;
default:
echo " <D:{$prop['name']}>" . $this->_prop_encode(htmlspecialchars($prop['val'])) . "</D:{$prop['name']}>\n";
break;
}
} else {
// properties from namespaces != "DAV:" or without any namespace
if ($prop["ns"]) {
echo " <" . $ns_hash[$prop["ns"]] . ":{$prop['name']}>" . $this->_prop_encode(htmlspecialchars($prop['val'])) . "</" . $ns_hash[$prop["ns"]] . ":{$prop['name']}>\n";
} else {
echo " <{$prop['name']} xmlns=\"\">" . $this->_prop_encode(htmlspecialchars($prop['val'])) . "</{$prop['name']}>\n";
}
}
}
}
echo " </D:prop>\n";
echo " <D:status>HTTP/1.1 200 OK</D:status>\n";
echo " </D:propstat>\n";
}
// now report all properties requested bot not found
if (isset($file["noprops"])) {
echo " <D:propstat>\n";
echo " <D:prop>\n";
foreach ($file["noprops"] as $key => $prop) {
if ($prop["ns"] == "DAV:") {
echo " <D:{$prop['name']}/>\n";
} else {
if ($prop["ns"] == "") {
echo " <{$prop['name']} xmlns=\"\"/>\n";
} else {
echo " <" . $ns_hash[$prop["ns"]] . ":{$prop['name']}/>\n";
}
}
}
echo " </D:prop>\n";
echo " <D:status>HTTP/1.1 404 Not Found</D:status>\n";
echo " </D:propstat>\n";
}
echo " </D:response>\n";
}
echo "</D:multistatus>\n";
}
