Webdav Schnittstelle für DMS - Erstversion

2026-07-23 09:52:22 +00:00 · 2012-03-12 14:36:53 +00:00
parent ded8485d69
commit 1ac791563c
319 changed files with 41687 additions and 6 deletions
@@ -0,0 +1,206 @@
+<?php
+/* Copyright (C) 2012 FH Technikum-Wien
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Authors: Andreas Oesterreicher <andreas.oesterreicher@technikum-wien.at>
+ */
+/**
+ * Webdav File fuer DMS
+ */
+require_once(dirname(__FILE__).'/../include/dms.class.php');
+require_once(dirname(__FILE__).'/../include/datum.class.php');
+require_once(dirname(__FILE__).'/../include/benutzerberechtigung.class.php');
+
+class DMSFile extends Sabre_DAV_File
+{
+	private $myPath;
+	private $kategorie_kurzbz;
+	private $name;
+	private $dms_id;
+	private $auth;
+
+	function __construct($myPath, $auth=null) 
+	{
+		$this->myPath = $myPath;
+		//Dateinamen ermitteln
+		$this->name = mb_substr($myPath, mb_strrpos($myPath,"/")+1);
+		//Kategorie ermitteln
+		$katpath = mb_substr($myPath,0,mb_strrpos($myPath,"/"));
+		$this->kategorie_kurzbz = $this->getKategorie($katpath);
+
+		//DMS ID ermitteln
+		$dms = new dms();
+		$dms->getDocumentFromName($this->name, $this->kategorie_kurzbz);
+		if(isset($dms->result[0]))
+			$this->dms_id = $dms->result[0]->dms_id;
+		//else
+		//	error_log("fileNotFound $this->name in kat $this->kategorie_kurzbz");
+
+		$this->auth = $auth;
+	}
+
+	/**
+	 * Liefert den eingeloggten User
+	 */
+	function getUser()
+	{
+		return $this->auth->getCurrentUser();
+	}
+
+	/**
+	 * Parst die Kategorie aus dem Pfad
+	 */
+	function getKategorie($path)
+	{
+		$parts = explode($path, "/");
+
+		$parent = null;
+		foreach($parts as $kat)
+		{
+			$dms = new dms();
+			$dms->getKategorieFromBezeichnung($kat, $parent);
+			if(isset($dms->result[0]))
+				$parent = $dms->result[0]->kategorie_kurzbz;
+		}
+		return $parent;
+	}
+
+	/**
+	 * Liefert den Dateinamen
+	 */
+	function getName() 
+	{
+		return $this->name;
+	}
+
+	/**
+	 * Liefert die Datei
+	 */
+	function get() 
+	{
+		$dms = new dms();
+		$dms->load($this->dms_id);
+		return fopen(DMS_PATH.$dms->filename,'r');
+	}
+
+	/**
+	 * Liefert die Dateigroesse
+	 */
+	function getSize() 
+	{
+		$dms = new dms();
+		$dms->load($this->dms_id);
+		return filesize(DMS_PATH.$dms->filename);
+	}
+
+	/**
+	 * Liefert einen eindeutige Identifier fuer die Datei
+	 */
+	function getETag() 
+	{
+		$dms = new dms();
+		$dms->load($this->dms_id);
+		return '"' . md5_file(DMS_PATH.$dms->filename) . '"';
+	}
+
+	/**
+	 * Entfernt eine Datei
+	 */
+	function delete()
+	{
+		$dms = new dms();
+		$rechte = new benutzerberechtigung();
+		$rechte->getBerechtigungen($this->getUser());
+
+		if($rechte->isBerechtigt('basis/dms',null,'suid'))
+		{
+			$dms->load($this->dms_id);
+			if(!$dms->deleteDms($this->dms_id))
+			{
+				throw new Sabre_DAV_Exception_FileNotFound('Failed '.$dms->errormsg);
+			}
+			else
+			{
+				unlink(DMS_PATH.$dms->filename);
+			}
+		}
+		else
+		{
+			throw new Sabre_DAV_Exception_MethodNotAllowed('Keine Berechtigung');
+		}
+	}
+	
+	/**
+	 * Benennt eine Datei um
+	 */
+	function setName($newName)
+	{
+		$dms = new dms();
+		if($dms->load($this->dms_id))
+		{
+			$dms->updateamum = date('Y-m-d H:i:s');
+			$dms->updatevon = $this->getUser();
+			$dms->name = $newName;
+			if(!$dms->save(false))
+			{
+				throw new Sabre_DAV_Exception_FileNotFound('Failed '.$dms->errormsg);
+			}
+			else
+				$this->name = $newName;
+		}
+		else
+		{
+			throw new Sabre_DAV_Exception_FileNotFound('Failed '.$dms->errormsg);
+		}
+	}
+	
+	/**
+	 * Liefert Timestamp der letzten Aenderung
+	 */
+	function getLastModified()
+	{
+		$dms = new dms();
+		$dms->load($this->dms_id);
+		$datum = new datum();
+		if($dms->updateamum!='')
+			$ts = $datum->mktime_fromtimestamp($dms->updateamum);
+		else
+			$ts = $datum->mktime_fromtimestamp($dms->insertamum);
+		return $ts;
+	}
+	
+	/**
+	 * Speichert Daten in eine Datei
+	 * @param $data
+	 */
+	function put($data)
+	{
+		$dms = new dms();
+		if($dms->load($this->dms_id))
+		{
+			$dms->updateamum = date('Y-m-d H:i:s');
+			$dms->updatevon = $this->getUser();
+			
+			file_put_contents(DMS_PATH.$dms->filename, $data);
+			$dms->save(false);
+		}
+		else
+		{
+			throw new Sabre_DAV_Exception_FileNotFound('Failed '.$dms->errormsg);
+		}
+	}
+}
+?>