File size: 7.21Kb
<?php
/**
* Browser Plugin
*
* This plugin provides a html representation, so that a WebDAV server may be accessed
* using a browser.
*
* The class intercepts GET requests to collection resources and generates a simple
* html index. It's not really pretty though, extend to skin this listing.
*
* @package Sabre
* @subpackage DAV
* @version $Id$
* @copyright Copyright (C) 2007-2010 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_DAV_Browser_Plugin extends Sabre_DAV_ServerPlugin {
/**
* reference to server class
*
* @var Sabre_DAV_Server
*/
protected $server;
/**
* enableEditing
*
* @var bool
*/
protected $enablePost = true;
/**
* Creates the object.
*
* By default it will allow file creation and uploads.
* Specify the first argument as false to disable this
*
* @param bool $enablePost
* @return void
*/
public function __construct($enablePost=true) {
$this->enablePost = $enablePost;
}
/**
* Initializes the plugin and subscribes to events
*
* @param Sabre_DAV_Server $server
* @return void
*/
public function initialize(Sabre_DAV_Server $server) {
$this->server = $server;
$this->server->subscribeEvent('beforeMethod',array($this,'httpGetInterceptor'));
if ($this->enablePost) $this->server->subscribeEvent('unknownMethod',array($this,'httpPOSTHandler'));
}
/**
* This method intercepts GET requests to collections and returns the html
*
* @param string $method
* @return bool
*/
public function httpGetInterceptor($method) {
if ($method!='GET') return true;
$node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
if ($node instanceof Sabre_DAV_IFile) return true;
$this->server->httpResponse->sendStatus(200);
$this->server->httpResponse->setHeader('Content-Type','text/html; charset=utf-8');
$this->server->httpResponse->sendBody(
$this->generateDirectoryIndex($this->server->getRequestUri())
);
return false;
}
/**
* Handles POST requests for tree operations
*
* This method is not yet used.
*
* @param string $method
* @return bool
*/
public function httpPOSTHandler($method) {
if ($method!='POST') return true;
if (isset($_POST['action'])) switch($_POST['action']) {
case 'mkcol' :
if (isset($_POST['name']) && trim($_POST['name'])) {
// Using basename() because we won't allow slashes
list(, $folderName) = Sabre_DAV_URLUtil::splitPath(trim($_POST['name']));
$this->server->createDirectory($this->server->getRequestUri() . '/' . $folderName);
}
break;
case 'put' :
if ($_FILES) $file = current($_FILES);
else break;
$newName = trim($file['name']);
list(, $newName) = Sabre_DAV_URLUtil::splitPath(trim($file['name']));
if (isset($_POST['name']) && trim($_POST['name']))
$newName = trim($_POST['name']);
// Making sure we only have a 'basename' component
list(, $newName) = Sabre_DAV_URLUtil::splitPath($newName);
if (is_uploaded_file($file['tmp_name'])) {
$parent = $this->server->tree->getNodeForPath(trim($this->server->getRequestUri(),'/'));
$parent->createFile($newName,fopen($file['tmp_name'],'r'));
}
}
$this->server->httpResponse->setHeader('Location',$this->server->httpRequest->getUri());
return false;
}
/**
* Escapes a string for html.
*
* @param string $value
* @return void
*/
public function escapeHTML($value) {
return htmlspecialchars($value,ENT_QUOTES,'UTF-8');
}
/**
* Generates the html directory index for a given url
*
* @param string $path
* @return string
*/
public function generateDirectoryIndex($path) {
ob_start();
echo "<html>
<head>
<title>Index for " . $this->escapeHTML($path) . "/ - SabreDAV " . Sabre_DAV_Version::VERSION . "</title>
<style type=\"text/css\"> body { Font-family: arial}</style>
</head>
<body>
<h1>Index for " . $this->escapeHTML($path) . "/</h1>
<table>
<tr><th>Name</th><th>Type</th><th>Size</th><th>Last modified</th></tr>
<tr><td colspan=\"4\"><hr /></td></tr>";
$files = $this->server->getPropertiesForPath($path,array(
'{DAV:}resourcetype',
'{DAV:}getcontenttype',
'{DAV:}getcontentlength',
'{DAV:}getlastmodified',
),1);
foreach($files as $k=>$file) {
// This is the current directory, we can skip it
if ($file['href']==$path) continue;
$name = $this->escapeHTML(basename($file['href']));
if (isset($file[200]['{DAV:}resourcetype'])) {
$type = $file[200]['{DAV:}resourcetype']->getValue();
if ($type=='{DAV:}collection') {
$type = 'Directory';
} elseif ($type=='') {
if (isset($file[200]['{DAV:}getcontenttype'])) {
$type = $file[200]['{DAV:}getcontenttype'];
} else {
$type = 'Unknown';
}
} elseif (is_array($type)) {
$type = implode(', ', $type);
}
}
$type = $this->escapeHTML($type);
$size = isset($file[200]['{DAV:}getcontentlength'])?(int)$file[200]['{DAV:}getcontentlength']:'';
$lastmodified = isset($file[200]['{DAV:}getlastmodified'])?date(DATE_ATOM,$file[200]['{DAV:}getlastmodified']->getTime()):'';
$fullPath = '/' . trim($this->server->getBaseUri() . ($path?$this->escapeHTML($path) . '/':'') . $name,'/');
echo "<tr>
<td><a href=\"{$fullPath}\">{$name}</a></td>
<td>{$type}</td>
<td>{$size}</td>
<td>{$lastmodified}</td>
</tr>";
}
echo "<tr><td colspan=\"4\"><hr /></td></tr>";
if ($this->enablePost) {
echo '<tr><td><form method="post" action="">
<h3>Create new folder</h3>
<input type="hidden" name="action" value="mkcol" />
Name: <input type="text" name="name" /><br />
<input type="submit" value="create" />
</form>
<form method="post" action="" enctype="multipart/form-data">
<h3>Upload file</h3>
<input type="hidden" name="action" value="put" />
Name (optional): <input type="text" name="name" /><br />
File: <input type="file" name="file" /><br />
<input type="submit" value="upload" />
</form>
</td></tr>';
}
echo"</table>
<address>Generated by SabreDAV " . Sabre_DAV_Version::VERSION ."-". Sabre_DAV_Version::STABILITY . " (c)2007-2010 <a href=\"http://code.google.com/p/sabredav/\">http://code.google.com/p/sabredav/</a></address>
</body>
</html>";
return ob_get_clean();
}
}