846 lines
No EOL
28 KiB
PHP
Executable file
846 lines
No EOL
28 KiB
PHP
Executable file
<?php
|
|
/*
|
|
+----------------------------------------------------------------------+
|
|
| 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. |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
require_once "../inc/lib_base.php";
|
|
oc_require_once("HTTP/WebDAV/Server.php");
|
|
oc_require_once("System.php");
|
|
|
|
/**
|
|
* Filesystem access using WebDAV
|
|
*
|
|
* @access public
|
|
* @author Hartmut Holzgraefe <hartmut@php.net>
|
|
* @version @package-version@
|
|
*/
|
|
class HTTP_WebDAV_Server_Filesystem extends HTTP_WebDAV_Server
|
|
{
|
|
/**
|
|
* Root directory for WebDAV access
|
|
*
|
|
* Defaults to webserver document root (set by ServeRequest)
|
|
*
|
|
* @access private
|
|
* @var string
|
|
*/
|
|
var $base = "";
|
|
|
|
/**
|
|
* Serve a webdav request
|
|
*
|
|
* @access public
|
|
* @param string
|
|
*/
|
|
function ServeRequest($base = false)
|
|
{
|
|
// special treatment for litmus compliance test
|
|
// reply on its identifier header
|
|
// not needed for the test itself but eases debugging
|
|
if (isset($this->_SERVER['HTTP_X_LITMUS'])) {
|
|
error_log("Litmus test ".$this->_SERVER['HTTP_X_LITMUS']);
|
|
header("X-Litmus-reply: ".$this->_SERVER['HTTP_X_LITMUS']);
|
|
}
|
|
|
|
// set root directory, defaults to webserver document root if not set
|
|
if ($base) {
|
|
$this->base = realpath($base); // TODO throw if not a directory
|
|
} else if (!$this->base) {
|
|
$this->base = $this->_SERVER['DOCUMENT_ROOT'];
|
|
}
|
|
|
|
// establish connection to property/locking db
|
|
// mysql_connect($this->db_host, $this->db_user, $this->db_passwd) or die(mysql_error());
|
|
// mysql_select_db($this->db_name) or die(mysql_error());
|
|
// TODO throw on connection problems
|
|
|
|
// let the base class do all the work
|
|
parent::ServeRequest();
|
|
}
|
|
|
|
/**
|
|
* No authentication is needed here
|
|
*
|
|
* @access private
|
|
* @param string HTTP Authentication type (Basic, Digest, ...)
|
|
* @param string Username
|
|
* @param string Password
|
|
* @return bool true on successful authentication
|
|
*/
|
|
function check_auth($type, $user, $pass)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* PROPFIND method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @param array return array for file properties
|
|
* @return bool true on success
|
|
*/
|
|
function PROPFIND(&$options, &$files)
|
|
{
|
|
// get absolute fs path to requested resource
|
|
$fspath = $this->base . $options["path"];
|
|
|
|
// sanity check
|
|
if (!file_exists($fspath)) {
|
|
return false;
|
|
}
|
|
|
|
// prepare property array
|
|
$files["files"] = array();
|
|
|
|
// store information for the requested path itself
|
|
$files["files"][] = $this->fileinfo($options["path"]);
|
|
|
|
// information for contained resources requested?
|
|
if (!empty($options["depth"]) && is_dir($fspath) && is_readable($fspath)) {
|
|
|
|
// make sure path ends with '/'
|
|
$options["path"] = $this->_slashify($options["path"]);
|
|
|
|
// try to open directory
|
|
$handle = opendir($fspath);
|
|
|
|
if ($handle) {
|
|
// ok, now get all its contents
|
|
while ($filename = readdir($handle)) {
|
|
if ($filename != "." && $filename != "..") {
|
|
$files["files"][] = $this->fileinfo($options["path"].$filename);
|
|
}
|
|
}
|
|
// TODO recursion needed if "Depth: infinite"
|
|
}
|
|
}
|
|
|
|
// ok, all done
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get properties for a single file/resource
|
|
*
|
|
* @param string resource path
|
|
* @return array resource properties
|
|
*/
|
|
function fileinfo($path)
|
|
{
|
|
// map URI path to filesystem path
|
|
$fspath = $this->base . $path;
|
|
|
|
// create result array
|
|
$info = array();
|
|
// TODO remove slash append code when base clase is able to do it itself
|
|
$info["path"] = is_dir($fspath) ? $this->_slashify($path) : $path;
|
|
$info["props"] = array();
|
|
|
|
// no special beautified displayname here ...
|
|
$info["props"][] = $this->mkprop("displayname", strtoupper($path));
|
|
|
|
// creation and modification time
|
|
$info["props"][] = $this->mkprop("creationdate", filectime($fspath));
|
|
$info["props"][] = $this->mkprop("getlastmodified", filemtime($fspath));
|
|
|
|
// Microsoft extensions: last access time and 'hidden' status
|
|
$info["props"][] = $this->mkprop("lastaccessed", fileatime($fspath));
|
|
$info["props"][] = $this->mkprop("ishidden", ('.' === substr(basename($fspath), 0, 1)));
|
|
|
|
// type and size (caller already made sure that path exists)
|
|
if (is_dir($fspath)) {
|
|
// directory (WebDAV collection)
|
|
$info["props"][] = $this->mkprop("resourcetype", "collection");
|
|
$info["props"][] = $this->mkprop("getcontenttype", "httpd/unix-directory");
|
|
} else {
|
|
// plain file (WebDAV resource)
|
|
$info["props"][] = $this->mkprop("resourcetype", "");
|
|
if (is_readable($fspath)) {
|
|
$info["props"][] = $this->mkprop("getcontenttype", $this->_mimetype($fspath));
|
|
} else {
|
|
$info["props"][] = $this->mkprop("getcontenttype", "application/x-non-readable");
|
|
}
|
|
$info["props"][] = $this->mkprop("getcontentlength", filesize($fspath));
|
|
}
|
|
|
|
// get additional properties from database
|
|
$query = "SELECT ns, name, value
|
|
FROM {$this->db_prefix}properties
|
|
WHERE path = '$path'";
|
|
$res = mysql_query($query);
|
|
while ($row = mysql_fetch_assoc($res)) {
|
|
$info["props"][] = $this->mkprop($row["ns"], $row["name"], $row["value"]);
|
|
}
|
|
mysql_free_result($res);
|
|
|
|
return $info;
|
|
}
|
|
|
|
/**
|
|
* detect if a given program is found in the search PATH
|
|
*
|
|
* helper function used by _mimetype() to detect if the
|
|
* external 'file' utility is available
|
|
*
|
|
* @param string program name
|
|
* @param string optional search path, defaults to $PATH
|
|
* @return bool true if executable program found in path
|
|
*/
|
|
function _can_execute($name, $path = false)
|
|
{
|
|
// path defaults to PATH from environment if not set
|
|
if ($path === false) {
|
|
$path = getenv("PATH");
|
|
}
|
|
|
|
// check method depends on operating system
|
|
if (!strncmp(PHP_OS, "WIN", 3)) {
|
|
// on Windows an appropriate COM or EXE file needs to exist
|
|
$exts = array(".exe", ".com");
|
|
$check_fn = "file_exists";
|
|
} else {
|
|
// anywhere else we look for an executable file of that name
|
|
$exts = array("");
|
|
$check_fn = "is_executable";
|
|
}
|
|
|
|
// now check the directories in the path for the program
|
|
foreach (explode(PATH_SEPARATOR, $path) as $dir) {
|
|
// skip invalid path entries
|
|
if (!file_exists($dir)) continue;
|
|
if (!is_dir($dir)) continue;
|
|
|
|
// and now look for the file
|
|
foreach ($exts as $ext) {
|
|
if ($check_fn("$dir/$name".$ext)) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* try to detect the mime type of a file
|
|
*
|
|
* @param string file path
|
|
* @return string guessed mime type
|
|
*/
|
|
function _mimetype($fspath)
|
|
{
|
|
if (is_dir($fspath)) {
|
|
// directories are easy
|
|
return "httpd/unix-directory";
|
|
} else if (function_exists("mime_content_type")) {
|
|
// use mime magic extension if available
|
|
$mime_type = mime_content_type($fspath);
|
|
} else if ($this->_can_execute("file")) {
|
|
// it looks like we have a 'file' command,
|
|
// lets see it it does have mime support
|
|
$fp = popen("file -i '$fspath' 2>/dev/null", "r");
|
|
$reply = fgets($fp);
|
|
pclose($fp);
|
|
|
|
// popen will not return an error if the binary was not found
|
|
// and find may not have mime support using "-i"
|
|
// so we test the format of the returned string
|
|
|
|
// the reply begins with the requested filename
|
|
if (!strncmp($reply, "$fspath: ", strlen($fspath)+2)) {
|
|
$reply = substr($reply, strlen($fspath)+2);
|
|
// followed by the mime type (maybe including options)
|
|
if (preg_match('|^[[:alnum:]_-]+/[[:alnum:]_-]+;?.*|', $reply, $matches)) {
|
|
$mime_type = $matches[0];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (empty($mime_type)) {
|
|
// Fallback solution: try to guess the type by the file extension
|
|
// TODO: add more ...
|
|
// TODO: it has been suggested to delegate mimetype detection
|
|
// to apache but this has at least three issues:
|
|
// - works only with apache
|
|
// - needs file to be within the document tree
|
|
// - requires apache mod_magic
|
|
// TODO: can we use the registry for this on Windows?
|
|
// OTOH if the server is Windos the clients are likely to
|
|
// be Windows, too, and tend do ignore the Content-Type
|
|
// anyway (overriding it with information taken from
|
|
// the registry)
|
|
// TODO: have a seperate PEAR class for mimetype detection?
|
|
switch (strtolower(strrchr(basename($fspath), "."))) {
|
|
case ".html":
|
|
$mime_type = "text/html";
|
|
break;
|
|
case ".gif":
|
|
$mime_type = "image/gif";
|
|
break;
|
|
case ".jpg":
|
|
$mime_type = "image/jpeg";
|
|
break;
|
|
default:
|
|
$mime_type = "application/octet-stream";
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $mime_type;
|
|
}
|
|
|
|
/**
|
|
* HEAD method handler
|
|
*
|
|
* @param array parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function HEAD(&$options)
|
|
{
|
|
// get absolute fs path to requested resource
|
|
$fspath = $this->base . $options["path"];
|
|
|
|
// sanity check
|
|
if (!file_exists($fspath)) return false;
|
|
|
|
// detect resource type
|
|
$options['mimetype'] = $this->_mimetype($fspath);
|
|
|
|
// detect modification time
|
|
// see rfc2518, section 13.7
|
|
// some clients seem to treat this as a reverse rule
|
|
// requiering a Last-Modified header if the getlastmodified header was set
|
|
$options['mtime'] = filemtime($fspath);
|
|
|
|
// detect resource size
|
|
$options['size'] = filesize($fspath);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* GET method handler
|
|
*
|
|
* @param array parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function GET(&$options)
|
|
{
|
|
// get absolute fs path to requested resource
|
|
$fspath = $this->base . $options["path"];
|
|
|
|
// is this a collection?
|
|
if (is_dir($fspath)) {
|
|
return $this->GetDir($fspath, $options);
|
|
}
|
|
|
|
// the header output is the same as for HEAD
|
|
if (!$this->HEAD($options)) {
|
|
return false;
|
|
}
|
|
|
|
// no need to check result here, it is handled by the base class
|
|
$options['stream'] = fopen($fspath, "r");
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* GET method handler for directories
|
|
*
|
|
* This is a very simple mod_index lookalike.
|
|
* See RFC 2518, Section 8.4 on GET/HEAD for collections
|
|
*
|
|
* @param string directory path
|
|
* @return void function has to handle HTTP response itself
|
|
*/
|
|
function GetDir($fspath, &$options)
|
|
{
|
|
$path = $this->_slashify($options["path"]);
|
|
if ($path != $options["path"]) {
|
|
header("Location: ".$this->base_uri.$path);
|
|
exit;
|
|
}
|
|
|
|
// fixed width directory column format
|
|
$format = "%15s %-19s %-s\n";
|
|
|
|
if (!is_readable($fspath)) {
|
|
return false;
|
|
}
|
|
|
|
$handle = opendir($fspath);
|
|
if (!$handle) {
|
|
return false;
|
|
}
|
|
|
|
echo "<html><head><title>Index of ".htmlspecialchars($options['path'])."</title></head>\n";
|
|
|
|
echo "<h1>Index of ".htmlspecialchars($options['path'])."</h1>\n";
|
|
|
|
echo "<pre>";
|
|
printf($format, "Size", "Last modified", "Filename");
|
|
echo "<hr>";
|
|
|
|
while ($filename = readdir($handle)) {
|
|
if ($filename != "." && $filename != "..") {
|
|
$fullpath = $fspath."/".$filename;
|
|
$name = htmlspecialchars($filename);
|
|
printf($format,
|
|
number_format(filesize($fullpath)),
|
|
strftime("%Y-%m-%d %H:%M:%S", filemtime($fullpath)),
|
|
"<a href='$name'>$name</a>");
|
|
}
|
|
}
|
|
|
|
echo "</pre>";
|
|
|
|
closedir($handle);
|
|
|
|
echo "</html>\n";
|
|
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* PUT method handler
|
|
*
|
|
* @param array parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function PUT(&$options)
|
|
{
|
|
$fspath = $this->base . $options["path"];
|
|
|
|
$dir = dirname($fspath);
|
|
if (!file_exists($dir) || !is_dir($dir)) {
|
|
return "409 Conflict"; // TODO right status code for both?
|
|
}
|
|
|
|
$options["new"] = ! file_exists($fspath);
|
|
|
|
if ($options["new"] && !is_writeable($dir)) {
|
|
return "403 Forbidden";
|
|
}
|
|
if (!$options["new"] && !is_writeable($fspath)) {
|
|
return "403 Forbidden";
|
|
}
|
|
if (!$options["new"] && is_dir($fspath)) {
|
|
return "403 Forbidden";
|
|
}
|
|
|
|
$fp = fopen($fspath, "w");
|
|
|
|
return $fp;
|
|
}
|
|
|
|
|
|
/**
|
|
* MKCOL method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function MKCOL($options)
|
|
{
|
|
$path = $this->base .$options["path"];
|
|
$parent = dirname($path);
|
|
$name = basename($path);
|
|
|
|
if (!file_exists($parent)) {
|
|
return "409 Conflict";
|
|
}
|
|
|
|
if (!is_dir($parent)) {
|
|
return "403 Forbidden";
|
|
}
|
|
|
|
if ( file_exists($parent."/".$name) ) {
|
|
return "405 Method not allowed";
|
|
}
|
|
|
|
if (!empty($this->_SERVER["CONTENT_LENGTH"])) { // no body parsing yet
|
|
return "415 Unsupported media type";
|
|
}
|
|
|
|
$stat = mkdir($parent."/".$name, 0777);
|
|
if (!$stat) {
|
|
return "403 Forbidden";
|
|
}
|
|
|
|
return ("201 Created");
|
|
}
|
|
|
|
|
|
/**
|
|
* DELETE method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function DELETE($options)
|
|
{
|
|
$path = $this->base . "/" .$options["path"];
|
|
|
|
if (!file_exists($path)) {
|
|
return "404 Not found";
|
|
}
|
|
|
|
if (is_dir($path)) {
|
|
$query = "DELETE FROM {$this->db_prefix}properties
|
|
WHERE path LIKE '".$this->_slashify($options["path"])."%'";
|
|
mysql_query($query);
|
|
System::rm(array("-rf", $path));
|
|
} else {
|
|
unlink($path);
|
|
}
|
|
$query = "DELETE FROM {$this->db_prefix}properties
|
|
WHERE path = '$options[path]'";
|
|
mysql_query($query);
|
|
|
|
return "204 No Content";
|
|
}
|
|
|
|
|
|
/**
|
|
* MOVE method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function MOVE($options)
|
|
{
|
|
return $this->COPY($options, true);
|
|
}
|
|
|
|
/**
|
|
* COPY method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function COPY($options, $del=false)
|
|
{
|
|
// TODO Property updates still broken (Litmus should detect this?)
|
|
|
|
if (!empty($this->_SERVER["CONTENT_LENGTH"])) { // no body parsing yet
|
|
return "415 Unsupported media type";
|
|
}
|
|
|
|
// no copying to different WebDAV Servers yet
|
|
if (isset($options["dest_url"])) {
|
|
return "502 bad gateway";
|
|
}
|
|
|
|
$source = $this->base . $options["path"];
|
|
if (!file_exists($source)) {
|
|
return "404 Not found";
|
|
}
|
|
|
|
if (is_dir($source)) { // resource is a collection
|
|
switch ($options["depth"]) {
|
|
case "infinity": // valid
|
|
break;
|
|
case "0": // valid for COPY only
|
|
if ($del) { // MOVE?
|
|
return "400 Bad request";
|
|
}
|
|
break;
|
|
case "1": // invalid for both COPY and MOVE
|
|
default:
|
|
return "400 Bad request";
|
|
}
|
|
}
|
|
|
|
$dest = $this->base . $options["dest"];
|
|
$destdir = dirname($dest);
|
|
|
|
if (!file_exists($destdir) || !is_dir($destdir)) {
|
|
return "409 Conflict";
|
|
}
|
|
|
|
|
|
$new = !file_exists($dest);
|
|
$existing_col = false;
|
|
|
|
if (!$new) {
|
|
if ($del && is_dir($dest)) {
|
|
if (!$options["overwrite"]) {
|
|
return "412 precondition failed";
|
|
}
|
|
$dest .= basename($source);
|
|
if (file_exists($dest)) {
|
|
$options["dest"] .= basename($source);
|
|
} else {
|
|
$new = true;
|
|
$existing_col = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$new) {
|
|
if ($options["overwrite"]) {
|
|
$stat = $this->DELETE(array("path" => $options["dest"]));
|
|
if (($stat{0} != "2") && (substr($stat, 0, 3) != "404")) {
|
|
return $stat;
|
|
}
|
|
} else {
|
|
return "412 precondition failed";
|
|
}
|
|
}
|
|
|
|
if ($del) {
|
|
if (!rename($source, $dest)) {
|
|
return "500 Internal server error";
|
|
}
|
|
$destpath = $this->_unslashify($options["dest"]);
|
|
if (is_dir($source)) {
|
|
$query = "UPDATE {$this->db_prefix}properties
|
|
SET path = REPLACE(path, '".$options["path"]."', '".$destpath."')
|
|
WHERE path LIKE '".$this->_slashify($options["path"])."%'";
|
|
mysql_query($query);
|
|
}
|
|
|
|
$query = "UPDATE {$this->db_prefix}properties
|
|
SET path = '".$destpath."'
|
|
WHERE path = '".$options["path"]."'";
|
|
mysql_query($query);
|
|
} else {
|
|
if (is_dir($source)) {
|
|
$files = System::find($source);
|
|
$files = array_reverse($files);
|
|
} else {
|
|
$files = array($source);
|
|
}
|
|
|
|
if (!is_array($files) || empty($files)) {
|
|
return "500 Internal server error";
|
|
}
|
|
|
|
|
|
foreach ($files as $file) {
|
|
if (is_dir($file)) {
|
|
$file = $this->_slashify($file);
|
|
}
|
|
|
|
$destfile = str_replace($source, $dest, $file);
|
|
|
|
if (is_dir($file)) {
|
|
if (!file_exists($destfile)) {
|
|
if (!is_writeable(dirname($destfile))) {
|
|
return "403 Forbidden";
|
|
}
|
|
if (!mkdir($destfile)) {
|
|
return "409 Conflict";
|
|
}
|
|
} else if (!is_dir($destfile)) {
|
|
return "409 Conflict";
|
|
}
|
|
} else {
|
|
|
|
if (!copy($file, $destfile)) {
|
|
return "409 Conflict";
|
|
}
|
|
}
|
|
}
|
|
|
|
$query = "INSERT INTO {$this->db_prefix}properties
|
|
SELECT *
|
|
FROM {$this->db_prefix}properties
|
|
WHERE path = '".$options['path']."'";
|
|
}
|
|
|
|
return ($new && !$existing_col) ? "201 Created" : "204 No Content";
|
|
}
|
|
|
|
/**
|
|
* PROPPATCH method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function PROPPATCH(&$options)
|
|
{
|
|
global $prefs, $tab;
|
|
|
|
$msg = "";
|
|
$path = $options["path"];
|
|
$dir = dirname($path)."/";
|
|
$base = basename($path);
|
|
|
|
foreach ($options["props"] as $key => $prop) {
|
|
if ($prop["ns"] == "DAV:") {
|
|
$options["props"][$key]['status'] = "403 Forbidden";
|
|
} else {
|
|
if (isset($prop["val"])) {
|
|
$query = "REPLACE INTO {$this->db_prefix}properties
|
|
SET path = '$options[path]'
|
|
, name = '$prop[name]'
|
|
, ns= '$prop[ns]'
|
|
, value = '$prop[val]'";
|
|
} else {
|
|
$query = "DELETE FROM {$this->db_prefix}properties
|
|
WHERE path = '$options[path]'
|
|
AND name = '$prop[name]'
|
|
AND ns = '$prop[ns]'";
|
|
}
|
|
mysql_query($query);
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
|
|
/**
|
|
* LOCK method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function LOCK(&$options)
|
|
{
|
|
// get absolute fs path to requested resource
|
|
$fspath = $this->base . $options["path"];
|
|
|
|
// TODO recursive locks on directories not supported yet
|
|
// makes litmus test "32. lock_collection" fail
|
|
if (is_dir($fspath) && !empty($options["depth"])) {
|
|
return "409 Conflict";
|
|
}
|
|
|
|
$options["timeout"] = time()+300; // 5min. hardcoded
|
|
|
|
if (isset($options["update"])) { // Lock Update
|
|
$where = "WHERE path = '$options[path]' AND token = '$options[update]'";
|
|
|
|
$query = "SELECT owner, exclusivelock FROM {$this->db_prefix}locks $where";
|
|
$res = mysql_query($query);
|
|
$row = mysql_fetch_assoc($res);
|
|
mysql_free_result($res);
|
|
|
|
if (is_array($row)) {
|
|
$query = "UPDATE {$this->db_prefix}locks
|
|
SET expires = '$options[timeout]'
|
|
, modified = ".time()."
|
|
$where";
|
|
mysql_query($query);
|
|
|
|
$options['owner'] = $row['owner'];
|
|
$options['scope'] = $row["exclusivelock"] ? "exclusive" : "shared";
|
|
$options['type'] = $row["exclusivelock"] ? "write" : "read";
|
|
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$query = "INSERT INTO {$this->db_prefix}locks
|
|
SET token = '$options[locktoken]'
|
|
, path = '$options[path]'
|
|
, created = ".time()."
|
|
, modified = ".time()."
|
|
, owner = '$options[owner]'
|
|
, expires = '$options[timeout]'
|
|
, exclusivelock = " .($options['scope'] === "exclusive" ? "1" : "0")
|
|
;
|
|
mysql_query($query);
|
|
|
|
return mysql_affected_rows() ? "200 OK" : "409 Conflict";
|
|
}
|
|
|
|
/**
|
|
* UNLOCK method handler
|
|
*
|
|
* @param array general parameter passing array
|
|
* @return bool true on success
|
|
*/
|
|
function UNLOCK(&$options)
|
|
{
|
|
$query = "DELETE FROM {$this->db_prefix}locks
|
|
WHERE path = '$options[path]'
|
|
AND token = '$options[token]'";
|
|
mysql_query($query);
|
|
|
|
return mysql_affected_rows() ? "204 No Content" : "409 Conflict";
|
|
}
|
|
|
|
/**
|
|
* checkLock() helper
|
|
*
|
|
* @param string resource path to check for locks
|
|
* @return bool true on success
|
|
*/
|
|
function checkLock($path)
|
|
{
|
|
$result = false;
|
|
|
|
$query = "SELECT owner, token, created, modified, expires, exclusivelock
|
|
FROM {$this->db_prefix}locks
|
|
WHERE path = '$path'
|
|
";
|
|
$res = mysql_query($query);
|
|
|
|
if ($res) {
|
|
$row = mysql_fetch_array($res);
|
|
mysql_free_result($res);
|
|
|
|
if ($row) {
|
|
$result = array( "type" => "write",
|
|
"scope" => $row["exclusivelock"] ? "exclusive" : "shared",
|
|
"depth" => 0,
|
|
"owner" => $row['owner'],
|
|
"token" => $row['token'],
|
|
"created" => $row['created'],
|
|
"modified" => $row['modified'],
|
|
"expires" => $row['expires']
|
|
);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* create database tables for property and lock storage
|
|
*
|
|
* @param void
|
|
* @return bool true on success
|
|
*/
|
|
function create_database()
|
|
{
|
|
// TODO
|
|
return false;
|
|
}
|
|
} |