diff -r 000000000000 -r fb9019fb1bf7 src/org/gege/caldavsyncadapter/caldav/xml/ServerInfoHandler.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/org/gege/caldavsyncadapter/caldav/xml/ServerInfoHandler.java	Tue Feb 10 18:12:00 2015 +0100
@@ -0,0 +1,81 @@
+/**
+ * Copyright (c) 2012-2013, David Wiesner
+ * 
+ * This file is part of Andoid Caldav Sync Adapter Free.
+ *
+ * Andoid Caldav Sync Adapter Free 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 3 of the 
+ * License, or at your option any later version.
+ *
+ * Andoid Caldav Sync Adapter Free 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 Andoid Caldav Sync Adapter Free.  
+ * If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+
+package org.gege.caldavsyncadapter.caldav.xml;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+public class ServerInfoHandler extends DefaultHandler {
+
+	private static final String HREF = "href";
+	private static final String PRINCIPAL_URL = "principal-URL";
+	private static final String CURRENT_USER_PRINCIPAL = "current-user-principal";
+	private final static List<String> TAGS = Arrays.asList(
+			CURRENT_USER_PRINCIPAL, PRINCIPAL_URL);
+	private StringBuilder stringBuilder = new StringBuilder();
+	private String inParentElement;
+	private String currentElement;
+
+	public String currentUserPrincipal = null;
+	public String principalUrl = null;
+
+	@Override
+	public void startElement(String uri, String localName, String qName,
+			Attributes attributes) throws SAXException {
+		if (TAGS.contains(localName)) {
+			inParentElement = localName;
+		}
+		currentElement = localName;
+		stringBuilder.setLength(0);
+	}
+
+	@Override
+	public void characters(char[] ch, int start, int length)
+			throws SAXException {
+		if (HREF.equals(currentElement) && TAGS.contains(inParentElement)) {
+			stringBuilder.append(ch, start, length);
+		}
+	}
+
+	@Override
+	public void endElement(String uri, String localName, String qName)
+			throws SAXException {
+		//if (TAGS.contains(inParentElement)) {
+		if (HREF.equals(currentElement) && TAGS.contains(inParentElement)) {
+			if (CURRENT_USER_PRINCIPAL.equals(inParentElement)) {
+				currentUserPrincipal = stringBuilder.toString();
+			} else {
+				principalUrl = stringBuilder.toString();
+			}
+		}
+		 if(TAGS.contains(localName)){
+			inParentElement = null;
+			//stringBuilder.setLength(0);
+		}
+		 currentElement=null;
+	
+	}
+}