From 01014c5b00fec87101d971acdf88f523a9b4254a Mon Sep 17 00:00:00 2001 From: yvesf Date: Thu, 24 Mar 2011 22:09:06 +0100 Subject: JavaDoc Source Documentation, replace sun.misc Base64 with commons --- .../java/de/dhbw/horb/calendar/ICSServlet.java | 39 ------ .../horb/calendar/dualis/DualisConnection.java | 10 +- .../java/de/dhbw/horb/calendar/dualis/package.html | 5 + .../de/dhbw/horb/calendar/ics/AbstractICSType.java | 9 +- .../de/dhbw/horb/calendar/ics/ICalendarObject.java | 58 ++++++++ .../java/de/dhbw/horb/calendar/ics/VCalendar.java | 51 ------- .../java/de/dhbw/horb/calendar/ics/VEvent.java | 85 ------------ .../de/dhbw/horb/calendar/ics/VEventComponent.java | 85 ++++++++++++ .../java/de/dhbw/horb/calendar/ics/package.html | 5 + .../calendar/servlet/AuthenticatedServlet.java | 79 +++++++++++ .../de/dhbw/horb/calendar/servlet/ICSServlet.java | 42 ++++++ .../de/dhbw/horb/calendar/servlet/package.html | 5 + .../horb/calendar/ui/InteractiveLoginWorker.java | 149 +++++++++++++++++++++ .../java/de/dhbw/horb/calendar/ui/LoginWorker.java | 149 --------------------- .../de/dhbw/horb/calendar/ui/MyApplication.java | 4 +- .../horb/calendar/ui/StundenplanComponent.java | 4 +- .../java/de/dhbw/horb/calendar/ui/package.html | 5 + .../horb/calendar/util/AuthenticatedServlet.java | 84 ------------ 18 files changed, 450 insertions(+), 418 deletions(-) delete mode 100644 src/main/java/de/dhbw/horb/calendar/ICSServlet.java create mode 100644 src/main/java/de/dhbw/horb/calendar/dualis/package.html create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/ICalendarObject.java delete mode 100644 src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java delete mode 100644 src/main/java/de/dhbw/horb/calendar/ics/VEvent.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/VEventComponent.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ics/package.html create mode 100644 src/main/java/de/dhbw/horb/calendar/servlet/AuthenticatedServlet.java create mode 100644 src/main/java/de/dhbw/horb/calendar/servlet/ICSServlet.java create mode 100644 src/main/java/de/dhbw/horb/calendar/servlet/package.html create mode 100644 src/main/java/de/dhbw/horb/calendar/ui/InteractiveLoginWorker.java delete mode 100644 src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java create mode 100644 src/main/java/de/dhbw/horb/calendar/ui/package.html delete mode 100644 src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java (limited to 'src/main/java/de') diff --git a/src/main/java/de/dhbw/horb/calendar/ICSServlet.java b/src/main/java/de/dhbw/horb/calendar/ICSServlet.java deleted file mode 100644 index 8a1be3e..0000000 --- a/src/main/java/de/dhbw/horb/calendar/ICSServlet.java +++ /dev/null @@ -1,39 +0,0 @@ -package de.dhbw.horb.calendar; - -import java.io.IOException; - -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; - -import de.dhbw.horb.calendar.dualis.DualisConnection; -import de.dhbw.horb.calendar.dualis.DualisException; -import de.dhbw.horb.calendar.ics.VCalendar; -import de.dhbw.horb.calendar.ics.VEvent; -import de.dhbw.horb.calendar.util.AuthenticatedServlet; - -public class ICSServlet extends AuthenticatedServlet { - private static final long serialVersionUID = 1L; - - public ICSServlet() { - setLoginRealm("Dualis Calendar Connector"); - } - - @Override - protected void doGet(HttpServletRequest request, - HttpServletResponse response, String username, String password) - throws IOException { - response.setHeader("Content-Type", "text/calendar; charset=utf-8"); - - VCalendar calendar = new VCalendar("DHBW Calendar"); - try { - DualisConnection connection = new DualisConnection(username, - password); - for (VEvent event : connection.getEvents()) { - calendar.add(event); - } - } catch (DualisException e) { - e.printStackTrace(); - } - response.getOutputStream().write(calendar.serialize().getBytes()); - } -} \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java b/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java index c60349f..89e566c 100644 --- a/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java +++ b/src/main/java/de/dhbw/horb/calendar/dualis/DualisConnection.java @@ -31,7 +31,7 @@ import com.gargoylesoftware.htmlunit.html.HtmlPage; import de.dhbw.horb.calendar.dualis.DualisException.DualisAuthenticationException; import de.dhbw.horb.calendar.dualis.DualisException.DualisScrapingException; -import de.dhbw.horb.calendar.ics.VEvent; +import de.dhbw.horb.calendar.ics.VEventComponent; public class DualisConnection { public static final String DUALIS_URL = "https://dualis.dhbw.de/scripts/mgrqcgi?APPNAME=CampusNet&PRGNAME=EXTERNALPAGES&ARGUMENTS=-N000000000000001,-N,-Awelcome"; @@ -56,13 +56,13 @@ public class DualisConnection { this.password = password; } - public List getEvents() throws FailingHttpStatusCodeException, + public List getEvents() throws FailingHttpStatusCodeException, IOException, DualisScrapingException, DualisAuthenticationException { HtmlPage page, loginPage; final HtmlForm loginForm; final HtmlInput usernameField, passwordField, submitButton; final WebClient webClient = new WebClient(); - final List events = new ArrayList(); + final List events = new ArrayList(); webClient.setIncorrectnessListener(new IncorrectnessListener() { @Override @@ -179,7 +179,7 @@ public class DualisConnection { return events; } - private void getEventsFromPage(HtmlPage page, final List events) { + private void getEventsFromPage(HtmlPage page, final List events) { for (HtmlElement elem : page.getElementsByTagName("div")) { if (!elem.getAttribute("class").equals("tbMonthDay")) continue; @@ -223,7 +223,7 @@ public class DualisConnection { cstart.setTimeZone(TimeZone.getTimeZone("Europe/Berlin")); cend.setTimeZone(TimeZone.getTimeZone("Europe/Berlin")); - VEvent event = new VEvent.Builder().dtstart(cstart) + VEventComponent event = new VEventComponent.Builder().dtstart(cstart) .dtstamp(cstart).dtend(cend).summary(title) .description(title).location(room) .status("CONFIRMED").build(); diff --git a/src/main/java/de/dhbw/horb/calendar/dualis/package.html b/src/main/java/de/dhbw/horb/calendar/dualis/package.html new file mode 100644 index 0000000..7a37853 --- /dev/null +++ b/src/main/java/de/dhbw/horb/calendar/dualis/package.html @@ -0,0 +1,5 @@ + + +This package contains the Dualis Webscraper Classes based on htmlunit. + + \ No newline at end of file diff --git a/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java b/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java index a03de64..272148f 100644 --- a/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java +++ b/src/main/java/de/dhbw/horb/calendar/ics/AbstractICSType.java @@ -4,6 +4,12 @@ import java.text.SimpleDateFormat; import org.apache.commons.lang.StringEscapeUtils; +/** + * icalendar specifies Events, Todo, Journal, Free/Buse, TimeZone, Alarm + * Components. + * + * {@link AbstractICSType} is a superclass for those. + */ public abstract class AbstractICSType { /** * Serialisierert dieses Calenderteil. Dem Ergebnis Fehlt noch der vCalendar @@ -14,6 +20,7 @@ public abstract class AbstractICSType { /** * RFC says: + * * 
 	 * FORM #2: DATE WITH UTC TIME
 	 *
@@ -38,6 +45,6 @@ public abstract class AbstractICSType {
 	 * @return
 	 */
 	public static String escapeText(String text) {
-		return StringEscapeUtils.escapeJava(text); //XXX TODO
+		return StringEscapeUtils.escapeJava(text); // XXX TODO
 	}
 }
diff --git a/src/main/java/de/dhbw/horb/calendar/ics/ICalendarObject.java b/src/main/java/de/dhbw/horb/calendar/ics/ICalendarObject.java
new file mode 100644
index 0000000..e687d04
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/ics/ICalendarObject.java
@@ -0,0 +1,58 @@
+package de.dhbw.horb.calendar.ics;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Represent an iCalender Object.
+ *
+ * A iCalender object can consist of many components of different type. They are
+ * implemented as subclasses of {@link AbstractICSType} and can be added to an
+ * instance of {@link ICalendarObject}.
+ */
+public class ICalendarObject {
+	List icsObjects = new ArrayList();
+	private final String title;
+
+	public ICalendarObject(final String title) {
+		this.title = title;
+	}
+
+	public void add(AbstractICSType ics) {
+		icsObjects.add(ics);
+	}
+
+	/**
+	 *
+	 * @return serialized iCalendar Object
+	 */
+	public String serialize() {
+		final StringBuilder sb = new StringBuilder();
+		// Einleiten des Kalenders
+		sb.append("BEGIN:VCALENDAR\n");
+		// This property specifies the identifier for the product that created
+		// the iCalendar object.
+		sb.append("PRODID:-//DHBW Horb i08005//DHBW Calender 0.1//EN\n");
+		// Datenformat version
+		sb.append("VERSION:2.0\n");
+		// This property defines the calendar scale used for the
+		// calendar information specified in the iCalendar object.
+		sb.append("CALSCALE:GREGORIAN\n");
+		// This property defines the iCalendar object method
+		// associated with the calendar object.
+		sb.append("METHOD:PUBLISH\n");
+		/* Extensions */
+		//
+		sb.append("X-WR-TIMEZONE:UTC\n");
+		// Name des Kalenders
+		sb.append("X-WR-CALDESC:" + AbstractICSType.escapeText(title) + "\n");
+		sb.append("X-WR-CALNAME:" + AbstractICSType.escapeText(title) + "\n");
+
+		// Elemente
+		for (AbstractICSType ics : icsObjects) {
+			sb.append(ics.serialize());
+		}
+		sb.append("END:VCALENDAR\n");
+		return sb.toString();
+	}
+}
diff --git a/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java b/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java
deleted file mode 100644
index fcf083a..0000000
--- a/src/main/java/de/dhbw/horb/calendar/ics/VCalendar.java
+++ /dev/null
@@ -1,51 +0,0 @@
-package de.dhbw.horb.calendar.ics;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class VCalendar {
-	List icsObjects = new ArrayList();
-	private final String title;
-
-	public VCalendar(final String title) {
-		this.title = title;
-	}
-
-	public void add(AbstractICSType ics) {
-		icsObjects.add(ics);
-	}
-
-	/**
-	 * 
-	 * @return
-	 */
-	public String serialize() {
-		final StringBuilder sb = new StringBuilder();
-		// Einleiten des Kalenders
-		sb.append("BEGIN:VCALENDAR\n");
-		// This property specifies the identifier for the product that created
-		// the iCalendar object.
-		sb.append("PRODID:-//DHBW Horb i08005//DHBW Calender 0.1//EN\n");
-		// Datenformat version
-		sb.append("VERSION:2.0\n");
-		// This property defines the calendar scale used for the
-		// calendar information specified in the iCalendar object.
-		sb.append("CALSCALE:GREGORIAN\n");
-		// This property defines the iCalendar object method
-		// associated with the calendar object.
-		sb.append("METHOD:PUBLISH\n");
-		/* Extensions */
-		//
-		sb.append("X-WR-TIMEZONE:UTC\n");
-		// Name des Kalenders
-		sb.append("X-WR-CALDESC:" + AbstractICSType.escapeText(title)+"\n");
-		sb.append("X-WR-CALNAME:" + AbstractICSType.escapeText(title)+"\n");
-		
-		// Elemente
-		for (AbstractICSType ics : icsObjects) {
-			sb.append(ics.serialize());
-		}
-		sb.append("END:VCALENDAR\n");
-		return sb.toString();
-	}
-}
diff --git a/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java b/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java
deleted file mode 100644
index dea4a17..0000000
--- a/src/main/java/de/dhbw/horb/calendar/ics/VEvent.java
+++ /dev/null
@@ -1,85 +0,0 @@
-package de.dhbw.horb.calendar.ics;
-
-import java.util.Calendar;
-import java.util.TimeZone;
-
-public class VEvent extends AbstractICSType {
-	public Calendar dtstamp = Calendar.getInstance();
-	public Calendar dtstart = Calendar.getInstance();
-	public Calendar dtend = Calendar.getInstance();
-	public String status = "";
-	public String summary = "";
-	public String description = "";
-	public String location = "";
-
-	/**
-	 * {@inheritDoc} 

-	 * 

-	 * See RFC section 3.6.1 for VEVENT Specification
-	 */
-	@Override
-	public String serialize() {
-		final StringBuffer sb = new StringBuffer();
-		dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
-
-		sb.append("BEGIN:VEVENT\n");
-		sb.append("DTSTART:" + dateTimeFormat.format(dtstart.getTime()) + "\n");
-		sb.append("DTEND:" + dateTimeFormat.format(dtend.getTime()) + "\n");
-		sb.append("DTSTAMP:" + dateTimeFormat.format(dtstamp.getTime()) + "\n");
-		sb.append("UID:vevent_" + dateTimeFormat.format(dtstamp.getTime())
-				+ "@dhbw.de\n");
-		sb.append("CREATED:"
-				+ dateTimeFormat.format(Calendar.getInstance(TimeZone
-						.getTimeZone("UTC")).getTime()) + "\n");
-		sb.append("STATUS:" + escapeText(status) + "\n");
-		sb.append("SUMMARY:" + escapeText(summary) + "\n");
-		sb.append("DESCRIPTION:" + escapeText(description) + "\n");
-		sb.append("LOCATION:" + escapeText(location) + "\n");
-		sb.append("TRANSP:OPAQUE\n");
-		sb.append("END:VEVENT\n");
-		return sb.toString();
-	}
-
-	public static class Builder {
-		VEvent event = new VEvent();
-
-		public Builder dtstamp(Calendar cstart) {
-			event.dtstamp = cstart;
-			return this;
-		}
-
-		public Builder dtstart(Calendar cstart) {
-			event.dtstart = cstart;
-			return this;
-		}
-
-		public Builder dtend(Calendar cend) {
-			event.dtend = cend;
-			return this;
-		}
-
-		public Builder summary(String summary) {
-			event.summary = summary;
-			return this;
-		}
-
-		public Builder description(String description) {
-			event.description = description;
-			return this;
-		}
-
-		public Builder location(String location) {
-			event.location = location;
-			return this;
-		}
-
-		public VEvent build() {
-			return event;
-		}
-
-		public Builder status(String status) {
-			event.status = status;
-			return this;
-		}
-	}
-}
diff --git a/src/main/java/de/dhbw/horb/calendar/ics/VEventComponent.java b/src/main/java/de/dhbw/horb/calendar/ics/VEventComponent.java
new file mode 100644
index 0000000..bfc2162
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/ics/VEventComponent.java
@@ -0,0 +1,85 @@
+package de.dhbw.horb.calendar.ics;
+
+import java.util.Calendar;
+import java.util.TimeZone;
+
+public class VEventComponent extends AbstractICSType {
+	public Calendar dtstamp = Calendar.getInstance();
+	public Calendar dtstart = Calendar.getInstance();
+	public Calendar dtend = Calendar.getInstance();
+	public String status = "";
+	public String summary = "";
+	public String description = "";
+	public String location = "";
+
+	/**
+	 * {@inheritDoc} 

+	 * 

+	 * See RFC section 3.6.1 for VEVENT Specification
+	 */
+	@Override
+	public String serialize() {
+		final StringBuffer sb = new StringBuffer();
+		dateTimeFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
+
+		sb.append("BEGIN:VEVENT\n");
+		sb.append("DTSTART:" + dateTimeFormat.format(dtstart.getTime()) + "\n");
+		sb.append("DTEND:" + dateTimeFormat.format(dtend.getTime()) + "\n");
+		sb.append("DTSTAMP:" + dateTimeFormat.format(dtstamp.getTime()) + "\n");
+		sb.append("UID:vevent_" + dateTimeFormat.format(dtstamp.getTime())
+				+ "@dhbw.de\n");
+		sb.append("CREATED:"
+				+ dateTimeFormat.format(Calendar.getInstance(TimeZone
+						.getTimeZone("UTC")).getTime()) + "\n");
+		sb.append("STATUS:" + escapeText(status) + "\n");
+		sb.append("SUMMARY:" + escapeText(summary) + "\n");
+		sb.append("DESCRIPTION:" + escapeText(description) + "\n");
+		sb.append("LOCATION:" + escapeText(location) + "\n");
+		sb.append("TRANSP:OPAQUE\n");
+		sb.append("END:VEVENT\n");
+		return sb.toString();
+	}
+
+	public static class Builder {
+		VEventComponent event = new VEventComponent();
+
+		public Builder dtstamp(Calendar cstart) {
+			event.dtstamp = cstart;
+			return this;
+		}
+
+		public Builder dtstart(Calendar cstart) {
+			event.dtstart = cstart;
+			return this;
+		}
+
+		public Builder dtend(Calendar cend) {
+			event.dtend = cend;
+			return this;
+		}
+
+		public Builder summary(String summary) {
+			event.summary = summary;
+			return this;
+		}
+
+		public Builder description(String description) {
+			event.description = description;
+			return this;
+		}
+
+		public Builder location(String location) {
+			event.location = location;
+			return this;
+		}
+
+		public VEventComponent build() {
+			return event;
+		}
+
+		public Builder status(String status) {
+			event.status = status;
+			return this;
+		}
+	}
+}
diff --git a/src/main/java/de/dhbw/horb/calendar/ics/package.html b/src/main/java/de/dhbw/horb/calendar/ics/package.html
new file mode 100644
index 0000000..d35c7ea
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/ics/package.html
@@ -0,0 +1,5 @@
+
+
+Classes to produce iCalendar formatted data
+
+
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/servlet/AuthenticatedServlet.java b/src/main/java/de/dhbw/horb/calendar/servlet/AuthenticatedServlet.java
new file mode 100644
index 0000000..df6d499
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/servlet/AuthenticatedServlet.java
@@ -0,0 +1,79 @@
+package de.dhbw.horb.calendar.servlet;
+
+import java.io.IOException;
+import java.util.StringTokenizer;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.lang.StringEscapeUtils;
+import org.apache.ws.commons.util.Base64;
+
+public abstract class AuthenticatedServlet extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+	private String loginRealm = "Servlet Login";
+
+	public void setLoginRealm(String loginRealm) {
+		this.loginRealm = loginRealm;
+	}
+
+	public String getLoginRealm() {
+		return loginRealm;
+	}
+
+	String[] getUsernamePassword(HttpServletRequest request) throws IOException {
+		String authHeader = request.getHeader("Authorization");
+		if (authHeader != null) {
+			StringTokenizer st = new StringTokenizer(authHeader);
+			if (st.hasMoreTokens()) {
+				String basic = st.nextToken();
+				if (basic.equalsIgnoreCase("Basic")) {
+					String credentials = st.nextToken();
+
+					String userPass = new String(Base64.decode(credentials));
+
+					// The decoded string is in the form
+					// "userID:password".
+					int p = userPass.indexOf(":");
+					if (p != -1) {
+						String username = userPass.substring(0, p).trim();
+						String password = userPass.substring(p + 1).trim();
+						String[] userPassword = new String[] { username,
+								password };
+						if ("".equals(userPassword) || "".equals(password)) {
+							return null;
+						} else {
+							return new String[] { username, password };
+						}
+					}
+				}
+			}
+		}
+		return null;
+	}
+
+	void writeAuthenticationRequest(HttpServletResponse response) {
+		String realm = StringEscapeUtils.escapeJava(getLoginRealm());
+		String s = "Basic realm=\"" + realm + "\"";
+		response.setHeader("WWW-Authenticate", s);
+		response.setStatus(401);
+	}
+
+	@Override
+	protected void doGet(HttpServletRequest request,
+			HttpServletResponse response) throws ServletException, IOException {
+
+		String[] usernamePassword = getUsernamePassword(request);
+		if (usernamePassword == null) {
+			writeAuthenticationRequest(response);
+			return;
+		}
+		doGet(request, response, usernamePassword[0], usernamePassword[1]);
+	}
+
+	protected abstract void doGet(HttpServletRequest request,
+			HttpServletResponse response, String username, String password) throws ServletException, IOException;
+}
diff --git a/src/main/java/de/dhbw/horb/calendar/servlet/ICSServlet.java b/src/main/java/de/dhbw/horb/calendar/servlet/ICSServlet.java
new file mode 100644
index 0000000..a76f781
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/servlet/ICSServlet.java
@@ -0,0 +1,42 @@
+package de.dhbw.horb.calendar.servlet;
+
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import de.dhbw.horb.calendar.dualis.DualisConnection;
+import de.dhbw.horb.calendar.dualis.DualisException;
+import de.dhbw.horb.calendar.ics.ICalendarObject;
+import de.dhbw.horb.calendar.ics.VEventComponent;
+
+/**
+ * Das ICS-Servlet ist ein HTTP-Servlet das von der Kalenderapplikation
+ * aufgerufen wird um die iCalendar Daten zu bekommen.
+ */
+public class ICSServlet extends AuthenticatedServlet {
+	private static final long serialVersionUID = 1L;
+
+	public ICSServlet() {
+		setLoginRealm("Dualis Calendar Connector");
+	}
+
+	@Override
+	protected void doGet(HttpServletRequest request,
+			HttpServletResponse response, String username, String password)
+			throws IOException {
+		response.setHeader("Content-Type", "text/calendar; charset=utf-8");
+
+		ICalendarObject calendar = new ICalendarObject("DHBW Calendar");
+		try {
+			DualisConnection connection = new DualisConnection(username,
+					password);
+			for (VEventComponent event : connection.getEvents()) {
+				calendar.add(event);
+			}
+		} catch (DualisException e) {
+			e.printStackTrace();
+		}
+		response.getOutputStream().write(calendar.serialize().getBytes());
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/servlet/package.html b/src/main/java/de/dhbw/horb/calendar/servlet/package.html
new file mode 100644
index 0000000..a8d65b8
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/servlet/package.html
@@ -0,0 +1,5 @@
+
+
+HTTP-Servlet to serve /ics
+
+
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/ui/InteractiveLoginWorker.java b/src/main/java/de/dhbw/horb/calendar/ui/InteractiveLoginWorker.java
new file mode 100644
index 0000000..01258e9
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/ui/InteractiveLoginWorker.java
@@ -0,0 +1,149 @@
+package de.dhbw.horb.calendar.ui;
+
+import java.io.IOException;
+import java.net.URL;
+
+import org.w3c.css.sac.CSSException;
+import org.w3c.css.sac.CSSParseException;
+import org.w3c.css.sac.ErrorHandler;
+
+import com.gargoylesoftware.htmlunit.ElementNotFoundException;
+import com.gargoylesoftware.htmlunit.IncorrectnessListener;
+import com.gargoylesoftware.htmlunit.Page;
+import com.gargoylesoftware.htmlunit.StatusHandler;
+import com.gargoylesoftware.htmlunit.WebClient;
+import com.gargoylesoftware.htmlunit.html.HTMLParserListener;
+import com.gargoylesoftware.htmlunit.html.HtmlForm;
+import com.gargoylesoftware.htmlunit.html.HtmlInput;
+import com.gargoylesoftware.htmlunit.html.HtmlPage;
+
+import de.dhbw.horb.calendar.dualis.DualisConnection;
+import de.dhbw.horb.calendar.dualis.DualisException;
+import de.dhbw.horb.calendar.dualis.DualisException.DualisAuthenticationException;
+
+class InteractiveLoginWorker implements Runnable {
+	private final WebClient client;
+	private HtmlPage page = null;
+	private HtmlForm loginForm = null;
+	private HtmlInput usernameField;
+	private HtmlInput passwordField;
+	private HtmlInput submitButton;
+	private final String username;
+	private final String password;
+	private final LoginWorkerListener listener;
+
+	public InteractiveLoginWorker(final LoginWorkerListener listener, final String username, final String password) {
+		this.listener = listener;
+		this.username = username;
+		this.password = password;
+
+		client = new WebClient();
+		client.setIncorrectnessListener(new IncorrectnessListener() {
+			@Override
+			public void notify(String message, Object origin) {
+				System.out.println("=======");
+				System.out.println(origin.getClass());
+			}
+		});
+		// not used while setCssEnabled(false)
+		client.setCssErrorHandler(new ErrorHandler() {
+			@Override
+			public void warning(CSSParseException exception)
+					throws CSSException {
+				System.out.println("CSS Exception: " + exception.getMessage());
+			}
+
+			@Override
+			public void fatalError(CSSParseException exception)
+					throws CSSException {
+				System.out.println("CSS Exception: " + exception.getMessage());
+			}
+
+			@Override
+			public void error(CSSParseException exception) throws CSSException {
+				System.out.println("CSS Exception: " + exception.getMessage());
+			}
+		});
+		client.setStatusHandler(new StatusHandler() {
+			@Override
+			public void statusMessageChanged(Page page, String message) {
+				System.out
+						.println("DualisConnection.getEvents().new StatusHandler() {...}.statusMessageChanged()");
+			}
+		});
+		client.setHTMLParserListener(new HTMLParserListener() {
+			@Override
+			public void warning(String message, URL url, int line, int column,
+					String key) {
+				// ignore silently
+			}
+
+			@Override
+			public void error(String message, URL url, int line, int column,
+					String key) {
+				// ignore silently
+			}
+		});
+		client.setPrintContentOnFailingStatusCode(false);
+		client.setJavaScriptEnabled(false);
+		client.setCssEnabled(false);
+
+	}
+
+	private void step1() throws Exception {
+		page = client.getPage(DualisConnection.DUALIS_URL);
+	}
+
+	private void step2() {
+		loginForm = page.getFormByName("cn_loginForm");
+		usernameField = loginForm.getInputByName("usrname");
+		passwordField = loginForm.getInputByName("pass");
+		submitButton = loginForm.getInputByValue("Anmelden");
+	}
+
+	private void step3() throws IOException {
+		usernameField.type(username);
+		passwordField.type(password);
+		page = submitButton.click();
+	}
+
+	private void step4() throws DualisAuthenticationException {
+		try {
+			page.getAnchorByText("Stundenplan");
+		} catch (ElementNotFoundException e) {
+			throw new DualisException.DualisAuthenticationException(
+					"Authentifizierung fehltgeschlagen", e);
+		}
+	}
+
+	@Override
+	public void run() {
+		try {
+			listener.setProgress(0.2, "Lade Seite");
+			step1();
+
+			listener.setProgress(0.4, "Analysiere Seite");
+			step2();
+
+			listener.setProgress(0.6, "Sende Login");
+			step3();
+
+			listener.setProgress(0.8, "Prüfe Login");
+			step4();
+			listener.setProgress(1.0, "Erfolgreich");
+
+			listener.success(username,password);
+		} catch (Exception e) {
+			e.printStackTrace();
+			listener.error(e);
+		}
+	}
+
+	public interface LoginWorkerListener {
+		public void setProgress(double d, String description);
+
+		public void success(String username, String password);
+
+		public void error(Exception e);
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java b/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java
deleted file mode 100644
index 34941c0..0000000
--- a/src/main/java/de/dhbw/horb/calendar/ui/LoginWorker.java
+++ /dev/null
@@ -1,149 +0,0 @@
-package de.dhbw.horb.calendar.ui;
-
-import java.io.IOException;
-import java.net.URL;
-
-import org.w3c.css.sac.CSSException;
-import org.w3c.css.sac.CSSParseException;
-import org.w3c.css.sac.ErrorHandler;
-
-import com.gargoylesoftware.htmlunit.ElementNotFoundException;
-import com.gargoylesoftware.htmlunit.IncorrectnessListener;
-import com.gargoylesoftware.htmlunit.Page;
-import com.gargoylesoftware.htmlunit.StatusHandler;
-import com.gargoylesoftware.htmlunit.WebClient;
-import com.gargoylesoftware.htmlunit.html.HTMLParserListener;
-import com.gargoylesoftware.htmlunit.html.HtmlForm;
-import com.gargoylesoftware.htmlunit.html.HtmlInput;
-import com.gargoylesoftware.htmlunit.html.HtmlPage;
-
-import de.dhbw.horb.calendar.dualis.DualisConnection;
-import de.dhbw.horb.calendar.dualis.DualisException;
-import de.dhbw.horb.calendar.dualis.DualisException.DualisAuthenticationException;
-
-class LoginWorker implements Runnable {
-	private final WebClient client;
-	private HtmlPage page = null;
-	private HtmlForm loginForm = null;
-	private HtmlInput usernameField;
-	private HtmlInput passwordField;
-	private HtmlInput submitButton;
-	private final String username;
-	private final String password;
-	private final LoginWorkerListener listener;
-
-	public LoginWorker(final LoginWorkerListener listener, final String username, final String password) {
-		this.listener = listener;
-		this.username = username;
-		this.password = password;
-
-		client = new WebClient();
-		client.setIncorrectnessListener(new IncorrectnessListener() {
-			@Override
-			public void notify(String message, Object origin) {
-				System.out.println("=======");
-				System.out.println(origin.getClass());
-			}
-		});
-		// not used while setCssEnabled(false)
-		client.setCssErrorHandler(new ErrorHandler() {
-			@Override
-			public void warning(CSSParseException exception)
-					throws CSSException {
-				System.out.println("CSS Exception: " + exception.getMessage());
-			}
-
-			@Override
-			public void fatalError(CSSParseException exception)
-					throws CSSException {
-				System.out.println("CSS Exception: " + exception.getMessage());
-			}
-
-			@Override
-			public void error(CSSParseException exception) throws CSSException {
-				System.out.println("CSS Exception: " + exception.getMessage());
-			}
-		});
-		client.setStatusHandler(new StatusHandler() {
-			@Override
-			public void statusMessageChanged(Page page, String message) {
-				System.out
-						.println("DualisConnection.getEvents().new StatusHandler() {...}.statusMessageChanged()");
-			}
-		});
-		client.setHTMLParserListener(new HTMLParserListener() {
-			@Override
-			public void warning(String message, URL url, int line, int column,
-					String key) {
-				// ignore silently
-			}
-
-			@Override
-			public void error(String message, URL url, int line, int column,
-					String key) {
-				// ignore silently
-			}
-		});
-		client.setPrintContentOnFailingStatusCode(false);
-		client.setJavaScriptEnabled(false);
-		client.setCssEnabled(false);
-
-	}
-
-	private void step1() throws Exception {
-		page = client.getPage(DualisConnection.DUALIS_URL);
-	}
-
-	private void step2() {
-		loginForm = page.getFormByName("cn_loginForm");
-		usernameField = loginForm.getInputByName("usrname");
-		passwordField = loginForm.getInputByName("pass");
-		submitButton = loginForm.getInputByValue("Anmelden");
-	}
-
-	private void step3() throws IOException {
-		usernameField.type(username);
-		passwordField.type(password);
-		page = submitButton.click();
-	}
-
-	private void step4() throws DualisAuthenticationException {
-		try {
-			page.getAnchorByText("Stundenplan");
-		} catch (ElementNotFoundException e) {
-			throw new DualisException.DualisAuthenticationException(
-					"Authentifizierung fehltgeschlagen", e);
-		}
-	}
-
-	@Override
-	public void run() {
-		try {
-			listener.setProgress(0.2, "Lade Seite");
-			step1();
-
-			listener.setProgress(0.4, "Analysiere Seite");
-			step2();
-
-			listener.setProgress(0.6, "Sende Login");
-			step3();
-
-			listener.setProgress(0.8, "Prüfe Login");
-			step4();
-			listener.setProgress(1.0, "Erfolgreich");
-
-			listener.success(username,password);
-		} catch (Exception e) {
-			e.printStackTrace();
-			listener.error(e);
-		}
-	}
-
-	public interface LoginWorkerListener {
-		public void setProgress(double d, String description);
-
-		public void success(String username, String password);
-
-		public void error(Exception e);
-	}
-}
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java b/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java
index 9a0f222..4fc5749 100644
--- a/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java
+++ b/src/main/java/de/dhbw/horb/calendar/ui/MyApplication.java
@@ -13,7 +13,7 @@ import com.vaadin.ui.ProgressIndicator;
 import com.vaadin.ui.TabSheet;
 import com.vaadin.ui.Window;
 
-import de.dhbw.horb.calendar.ui.LoginWorker.LoginWorkerListener;
+import de.dhbw.horb.calendar.ui.InteractiveLoginWorker.LoginWorkerListener;
 
 public class MyApplication extends Application {
 	private static final long serialVersionUID = 1L;
@@ -142,7 +142,7 @@ public class MyApplication extends Application {
 
 				@Override
 				public void onLogin(LoginEvent event) {
-					new Thread(new LoginWorker(loginWorkerListener, event
+					new Thread(new InteractiveLoginWorker(loginWorkerListener, event
 							.getLoginParameter("username"), event
 							.getLoginParameter("password"))).start();
 					loginForm.setVisible(false);
diff --git a/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java b/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java
index 0357610..29ddecc 100644
--- a/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java
+++ b/src/main/java/de/dhbw/horb/calendar/ui/StundenplanComponent.java
@@ -12,7 +12,7 @@ import com.vaadin.ui.Table;
 import com.vaadin.ui.VerticalLayout;
 
 import de.dhbw.horb.calendar.dualis.DualisConnection;
-import de.dhbw.horb.calendar.ics.VEvent;
+import de.dhbw.horb.calendar.ics.VEventComponent;
 import de.dhbw.horb.calendar.ui.MyApplication.MyMainWindow;
 
 public class StundenplanComponent extends FormLayout {
@@ -34,7 +34,7 @@ public class StundenplanComponent extends FormLayout {
 							myMainWindow.getUsername(),
 							myMainWindow.getPassword());
 					try {
-						for (VEvent vevent : dualisConnection.getEvents()) {
+						for (VEventComponent vevent : dualisConnection.getEvents()) {
 							synchronized (getApplication()) {
 								table.addItem(new Object[] { vevent.dtstart.getTime(),
 										vevent.dtend.getTime(), vevent.summary,
diff --git a/src/main/java/de/dhbw/horb/calendar/ui/package.html b/src/main/java/de/dhbw/horb/calendar/ui/package.html
new file mode 100644
index 0000000..3591a6b
--- /dev/null
+++ b/src/main/java/de/dhbw/horb/calendar/ui/package.html
@@ -0,0 +1,5 @@
+
+
+vaadin based Webinterface.
+
+
\ No newline at end of file
diff --git a/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java b/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java
deleted file mode 100644
index 47ca537..0000000
--- a/src/main/java/de/dhbw/horb/calendar/util/AuthenticatedServlet.java
+++ /dev/null
@@ -1,84 +0,0 @@
-package de.dhbw.horb.calendar.util;
-
-import java.io.IOException;
-import java.util.StringTokenizer;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServlet;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.apache.commons.lang.StringEscapeUtils;
-
-import sun.misc.BASE64Decoder;
-
-public abstract class AuthenticatedServlet extends HttpServlet {
-	private static final long serialVersionUID = 1L;
-	
-	
-	private String loginRealm = "Servlet Login";
-
-	public void setLoginRealm(String loginRealm) {
-		this.loginRealm = loginRealm;
-	}
-
-	public String getLoginRealm() {
-		return loginRealm;
-	}
-
-	String[] getUsernamePassword(HttpServletRequest request) throws IOException {
-		String authHeader = request.getHeader("Authorization");
-		if (authHeader != null) {
-			StringTokenizer st = new StringTokenizer(authHeader);
-			if (st.hasMoreTokens()) {
-				String basic = st.nextToken();
-				if (basic.equalsIgnoreCase("Basic")) {
-					String credentials = st.nextToken();
-
-					// XXX fixme, dont use sun.misc
-					BASE64Decoder decoder = new BASE64Decoder();
-					String userPass = new String(
-							decoder.decodeBuffer(credentials));
-
-					// The decoded string is in the form
-					// "userID:password".
-					int p = userPass.indexOf(":");
-					if (p != -1) {
-						String username = userPass.substring(0, p).trim();
-						String password = userPass.substring(p + 1).trim();
-						String[] userPassword = new String[] { username,
-								password };
-						if ("".equals(userPassword) || "".equals(password)) {
-							return null;
-						} else {
-							return new String[] { username, password };
-						}
-					}
-				}
-			}
-		}
-		return null;
-	}
-
-	void writeAuthenticationRequest(HttpServletResponse response) {
-		String realm = StringEscapeUtils.escapeJava(getLoginRealm());
-		String s = "Basic realm=\"" + realm + "\"";
-		response.setHeader("WWW-Authenticate", s);
-		response.setStatus(401);
-	}
-
-	@Override
-	protected void doGet(HttpServletRequest request,
-			HttpServletResponse response) throws ServletException, IOException {
-
-		String[] usernamePassword = getUsernamePassword(request);
-		if (usernamePassword == null) {
-			writeAuthenticationRequest(response);
-			return;
-		}
-		doGet(request, response, usernamePassword[0], usernamePassword[1]);
-	}
-
-	protected abstract void doGet(HttpServletRequest request,
-			HttpServletResponse response, String username, String password) throws ServletException, IOException;
-}
-- 
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