[client] Redo package structure, add comments/TODOs, rename GUI classes

8 files changed, 0 insertions, 780 deletions

diff --git a/dozentenmodul/src/main/java/util/CheckIntegrity.java b/dozentenmodul/src/main/java/util/CheckIntegrity.java
deleted file mode 100644
index faded054..00000000
--- a/dozentenmodul/src/main/java/util/CheckIntegrity.java
+++ /dev/null
@@ -1,121 +0,0 @@
-package util;
-
-public class CheckIntegrity {
-
-	// private static boolean isFine = false;
-
-	// integrity check on permissions put by user for an image
-	public static boolean[] isIntegreForImage(boolean isRead, boolean isWrite,
-			boolean isLink, boolean isAdmin) {
-
-		// boolean array for the correct result values
-		boolean[] rights = new boolean[4];
-		rights[0] = isRead;
-		rights[1] = isWrite;
-		rights[2] = isLink;
-		rights[3] = isAdmin;
-
-		System.out.println("*****************************");
-		System.out.println(isRead + " " + isWrite + " " + isLink + " "
-				+ isAdmin);
-
-		if (isRead) // if read is allowed, only read is allowed
-		{
-			rights[0] = true; // read allowed
-		} else // if read is not allowed, nothing is allowed
-		{
-			rights[0] = false;
-			rights[1] = false;
-			rights[2] = false;
-			rights[3] = false;
-		}
-
-		if (isWrite) // if write was selected
-		{
-			rights[0] = true;
-			rights[1] = true;
-		} else // if write was unselected
-		{
-			// rights[0] = false;
-			rights[1] = false;
-		}
-
-		if (isLink) // if link was selected, read and link are allowed
-		{
-			rights[0] = true;
-			rights[2] = true;
-		} else // if link is unselected, link is not allowed
-		{
-			rights[2] = false;
-		}
-
-		if (isAdmin) // if admin is selected, anything is allowed
-		{
-			rights[0] = true;
-			rights[1] = true;
-			rights[2] = true;
-			rights[3] = true;
-		} else // if admin is unselected, admin is not allowed
-		{
-			rights[3] = false;
-		}
-
-		System.out.println(">-------------<");
-		System.out.println(rights[0] + " " + rights[1] + " " + rights[2] + " "
-				+ rights[3]);
-
-		return rights;
-
-	}// end isIntegreForImage()
-
-	
-	// integrity check on permissions put by user for a lecture
-	public static boolean[] isIntegreForLecture(boolean isRead,	boolean isWrite, boolean isAdmin) {
-
-		// boolean array for the correct result values
-		boolean[] rights = new boolean[4];
-		rights[0] = isRead;
-		rights[1] = isWrite;
-		rights[2] = isAdmin;
-
-		System.out.println("*****************************");
-		System.out.println(isRead + " " + isWrite + " " + isAdmin);
-
-		if (isRead) // if read is allowed, only read is allowed
-		{
-			rights[0] = true; // read allowed
-		} else // if read is not allowed, nothing is allowed
-		{
-			rights[0] = false;
-			rights[1] = false;
-			rights[2] = false;
-		}
-
-		if (isWrite) // if write was selected
-		{
-			rights[0] = true;
-			rights[1] = true;
-		} else // if write was unselected
-		{
-			// rights[0] = false;
-			rights[1] = false;
-		}
-
-		if (isAdmin) // if admin is selected, anything is allowed
-		{
-			rights[0] = true;
-			rights[1] = true;
-			rights[2] = true;
-		} else // if admin is unselected, admin is not allowed
-		{
-			rights[2] = false;
-		}
-
-		System.out.println(">-------------<");
-		System.out.println(rights[0] + " " + rights[1] + " " + rights[2]);
-
-		return rights;
-
-	}// end isIntegreForLecture()
-
-}
diff --git a/dozentenmodul/src/main/java/util/FormatHelper.java b/dozentenmodul/src/main/java/util/FormatHelper.java
deleted file mode 100644
index ad1f02f9..00000000
--- a/dozentenmodul/src/main/java/util/FormatHelper.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package util;
-
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-
-public class FormatHelper {
-
-	private static final SimpleDateFormat in = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-	private static final SimpleDateFormat out = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss");
-
-	/**
-	 * Convert mysql date/time format to human readable (German) format.
-	 * If the given date is not parsable, "<invalid>" will be returned.
-	 * 
-	 * @param dateTime yyyy-MM-dd HH:mm:ss
-	 * @return dd.MM.yy HH:mm
-	 */
-	public static String mysqlDateToGerman(String dateTime) {
-		try {
-			return out.format(in.parse(dateTime));
-		} catch (ParseException e) {
-			return "<invalid>";
-		}
-	}
-
-	public static String byteToGigabyte(long bytes, boolean si) {
-		int unit = si ? 1000 : 1024;
-		if (bytes < unit)
-			return bytes + " B";
-		int exp = (int) (Math.log(bytes) / Math.log(unit));
-		String pre = (si ? "kMGTPE" : "KMGTPE").charAt(exp - 1) + (si ? "" : "i");
-		return String.format("%.1f %sB", bytes / Math.pow(unit, exp), pre);
-	}
-
-}
diff --git a/dozentenmodul/src/main/java/util/MessageType.java b/dozentenmodul/src/main/java/util/MessageType.java
deleted file mode 100644
index 294e28d6..00000000
--- a/dozentenmodul/src/main/java/util/MessageType.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package util;
-
-import javax.swing.JOptionPane;
-
-import org.apache.log4j.Priority;
-
-@SuppressWarnings("deprecation")
-public enum MessageType {
-	DEBUG(JOptionPane.INFORMATION_MESSAGE, "Debug", Priority.DEBUG),
-	INFO(JOptionPane.INFORMATION_MESSAGE, "Hinweis", Priority.INFO),
-	WARNING(JOptionPane.WARNING_MESSAGE, "Warnung", Priority.WARN),
-	ERROR(JOptionPane.ERROR_MESSAGE, "Fehler", Priority.ERROR);
-
-	public final String title;
-	public final int optionPaneId;
-	public final Priority logPriority;
-
-	private MessageType(int paneId, String title, Priority prio) {
-		this.title = title;
-		this.optionPaneId = paneId;
-		this.logPriority = prio;
-	}
-}
diff --git a/dozentenmodul/src/main/java/util/News.java b/dozentenmodul/src/main/java/util/News.java
deleted file mode 100644
index 5f3ea776..00000000
--- a/dozentenmodul/src/main/java/util/News.java
+++ /dev/null
@@ -1,236 +0,0 @@
-package util;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLConnection;
-import java.sql.Date;
-
-import javax.swing.JOptionPane;
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-
-import org.openslx.bwlp.thrift.iface.SessionData;
-
-import org.apache.log4j.Logger;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-import org.xml.sax.SAXException;
-
-/**
- *	Class representing the news given by the satellite
- *	Makes use of the News-API of the webservice slx-admin:
- *		http://satellite.ip/slx-admin/api.php?do=news
- *
- *	Access the data through the public getters:
- *		String newsHeadline = News.getHeadline();
- *		String newsContent = News.getContent();
- *		Date newsLatestDate = News.getDate();
- */
-
-public class News {
-
-	// Logger instance for this class
-	private final static Logger LOGGER = Logger.getLogger(News.class);
-
-	// Private members representing the news
-	private static String headline = null;
-	private static String content = null;
-	private static Date date = null;
-
-	/**
-	 * Gets the headline as String.
-	 *
-	 * @return String Contains the headline text.
-	 */
-	public static String getHeadline() {
-		if (headline != null)
-			return headline;
-		else {
-			init();
-			// check if it is still null
-			if (headline != null)
-				return headline;
-			else
-				return null;
-		}
-	}
-
-	/**
-	 * Gets the content as String.
-	 *
-	 * @return String Contains the content text.
-	 */
-	public static String getContent() {
-		if (content != null)
-			return content;
-		else {
-			init();
-			if (content != null)
-				return content;
-			else
-				return null;
-		}
-	}
-
-	/**
-	 * Gets the date of the latest news as Date.
-	 *
-	 * @return Date Represent last modification date.
-	 */
-	public static Date getDate() {
-		if (date != null)
-			return date;
-		else {
-			init();
-			if (date != null)
-				return date;
-			else
-				return null;
-		}
-	}
-
-	/**
-	 *	Private 'init' function doing the main work.
-	 *	It is called by getters if their object is null.
-	 *	Follows these steps:
-	 *	- Opens URL as stream
-	 *	- Parse stream as (XML-)Document
-	 *	- Check validity of the news format:
-	 *		<news>
-	 *			<headline>...</headline>
-	 *			<content>...</content>
-	 *			<date>...</date>
-	 *		</news>
-	 *
-	 *	- Sets private members
-	 */
-
-	private static void init(){
-		// Document representing the XML
-		Document doc = null;
-		String satIp = SessionData._Fields.SERVER_ADDRESS.toString();
-		// sanity check to see if we have the satellite IP
-		if (satIp == null || satIp.isEmpty()) {
-			LOGGER.error("No satellite IP adress is set in SessionData, aborting news fetching...");
-			return;
-		}
-		
-		// URL to news API
-		URL url = null;
-		try {
-			url = new URL("http://" + SessionData._Fields.SERVER_ADDRESS.toString() + "/slx-admin/api.php?do=news");
-		} catch (MalformedURLException e) {
-			LOGGER.error("Malformated URL to News-API, see trace: ", e);
-		}
-		
-		// check is the url got created.
-		if (url == null) {
-			// no URL, log it and return
-			LOGGER.error("URL to the News-API not defined!");
-			return;
-		}
-				
-		// set timeout for URLConnection
-		URLConnection urlCon = null;
-		try {
-			urlCon = url.openConnection();
-			// 5 seconds timeout for connection
-			urlCon.setConnectTimeout(5000);
-			// 10 seconds timeout for reading the stream
-			urlCon.setReadTimeout(10000);
-		} catch (IOException e) {
-			LOGGER.error("IO error while requesting News URL, see trace: ", e);
-			return;
-		}
-
-		InputStream is = null;
-		try {
-			is = urlCon.getInputStream();
-		} catch (IOException e1) {
-			LOGGER.error("Could not open stream to URL '" + url.toString() + "', see trace: ", e1);
-			return;
-		}
-		
-		// use java's DocumentBuilder engine to parse the XML
-		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
-		DocumentBuilder builder = null;
-		
-		try {
-			builder = factory.newDocumentBuilder();
-		} catch (ParserConfigurationException e) {
-			LOGGER.error("XML parsing configuration error, see trace: ", e);
-			return;
-		}
-		
-		// try the parsing
-		try {
-			doc = builder.parse(is);
-		} catch (SAXException e) {
-			LOGGER.error("XML parsing error, see trace: ", e);
-			return;
-		} catch (IOException e) {
-			LOGGER.error("IO-Error, see trace: ", e);
-			return;
-		}
-
-		// now that we have parsed the XML, check if it is valid
-		Element docRoot = doc.getDocumentElement();
-		
-		// first element has to be name "news"
-		if (docRoot.getNodeName().equals("news")) {
-			Node headlineNode = null;
-			Node contentNode = null;
-			Node dateNode = null;
-			
-			// get list of every child
-			NodeList nList = docRoot.getElementsByTagName("*");		
-			
-			// fail if the list is empty
-			if (nList == null) return;
-			
-			// now we go through the list looking for our elements
-			// TODO: get definition of tags externally/through static api?
-			for (int i = 0; i < nList.getLength(); i++) {
-				Node current = nList.item(i);
-				if (current.getNodeType() == Node.ELEMENT_NODE) {
-					if (current.getNodeName().equals("headline") && 
-							current.getFirstChild().getNodeType() == Node.TEXT_NODE) headlineNode = current.getFirstChild();
-					// FIXME: temporary workaround for possibly different slx-admin versions!
-					if ((current.getNodeName().equals("info") || current.getNodeName().equals("content")) &&
-							current.getFirstChild().getNodeType() == Node.TEXT_NODE) contentNode = current.getFirstChild();
-					if (current.getNodeName().equals("date") &&
-							current.getFirstChild().getNodeType() == Node.TEXT_NODE) dateNode = current.getFirstChild();
-				}
-			}
-			
-			// set what the elements we found
-			if (headlineNode != null) headline = headlineNode.getNodeValue().trim();
-			if (contentNode != null) content = contentNode.getNodeValue().trim();
-			if (dateNode != null) {
-				// for the date we need a bit more stuff
-				Date tmpDate = null;
-				try {
-					tmpDate = new Date(Long.parseLong(dateNode.getNodeValue().trim()) * 1000);
-				} catch (NumberFormatException nfe) {
-					LOGGER.error("Date format is invalid, see trace: ", nfe);
-					JOptionPane.showMessageDialog(null,
-							"Zeitstempel aus der XML is invalid!",
-							"Fehler", JOptionPane.ERROR_MESSAGE);
-					// TODO: set current date.
-				}
-				// Date creation worked, save it
-				if (tmpDate != null) date = tmpDate;
-			}
-		} else {
-			JOptionPane.showMessageDialog(null,
-					"Invalides XML! Kein 'news' Wurzelelement. News wird leer gelassen.",
-					"Fehler", JOptionPane.ERROR_MESSAGE);
-			return;
-		}
-	}	
-}
diff --git a/dozentenmodul/src/main/java/util/OpenLinks.java b/dozentenmodul/src/main/java/util/OpenLinks.java
deleted file mode 100644
index 2bde54bf..00000000
--- a/dozentenmodul/src/main/java/util/OpenLinks.java
+++ /dev/null
@@ -1,82 +0,0 @@
-package util;
-
-import java.awt.Desktop;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.swing.JOptionPane;
-
-import org.apache.log4j.Logger;
-
-public class OpenLinks {
-
-	/**
-	 * Logger instance for this class
-	 */
-	private final static Logger LOGGER = Logger.getLogger(OpenLinks.class);
-
-	/**
-	 * Map containing the links
-	 */
-	@SuppressWarnings("serial")
-	private static Map<String, String> links = Collections.unmodifiableMap(new HashMap<String, String>(){{
-		put("faq", "http://bwlehrpool.hs-offenburg.de");
-		put("otrs", "http://bwlehrpool.hs-offenburg.de");
-		put("vmware", "https://my.vmware.com/de/web/vmware/free#desktop_end_user_computing/vmware_player/6_0");
-		put("intro", "http://www.hs-offenburg.de/fileadmin/Einrichtungen/hrz/Projekte/bwLehrpool/3_bwLehrpool_-_Image_einbinden_und_starten.pdf");
-		
-	}});
-
-	/**
-	 * Static URIs
-	 */
-
-	private static Map<String, URI> uris;
-	static {
-		// temp map
-		Map<String, URI> tmpUris = new HashMap<String, URI>();
-		for (String key : links.keySet()) {
-			URI tmp;
-			try {
-				tmp = new URI(links.get(key));
-			} catch (URISyntaxException e) {
-				// should never happen!
-				LOGGER.error("Bad URI syntax of '" + key + "', see trace: ", e);
-				tmp = null;
-			}
-			tmpUris.put(key, tmp);
-		}
-		// check sizes of maps to be equal
-		if (links.size() != tmpUris.size()) {
-			LOGGER.error("Links and URIs have different sizes, this should not happen. Contact a developper.");
-		}
-		
-		// all good, save it to the actual 'uris' map
-		uris = Collections.unmodifiableMap(tmpUris);
-	}
-
-	
-	public static void openWebpage(String key) {
-		// first check if we have the link for the request key
-		if (!uris.containsKey(key)) {
-			LOGGER.error("OpenLinks has to link to '" + key + "'. Check if the given key actually exists.");
-			return;
-		}
-		Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop()
-				: null;
-		if (desktop != null && desktop.isSupported(Desktop.Action.BROWSE)) {
-			try {
-				desktop.browse(uris.get(key));
-			} catch (Exception e) {
-				e.printStackTrace();
-				JOptionPane.showMessageDialog(null,
-						e.getCause() + "\n" + e.getStackTrace(),
-						"Debug-Message", JOptionPane.ERROR_MESSAGE);
-			}
-		}
-	}// end openWebpage
-
-}
diff --git a/dozentenmodul/src/main/java/util/ResourceLoader.java b/dozentenmodul/src/main/java/util/ResourceLoader.java
deleted file mode 100644
index 8ad23601..00000000
--- a/dozentenmodul/src/main/java/util/ResourceLoader.java
+++ /dev/null
@@ -1,96 +0,0 @@
-package util;
-
-import gui.GuiManager;
-
-import java.awt.Graphics2D;
-import java.awt.SystemColor;
-import java.awt.geom.Rectangle2D;
-import java.awt.image.BufferedImage;
-import java.net.URL;
-
-import javax.swing.ImageIcon;
-
-import org.apache.commons.io.IOUtils;
-import org.apache.log4j.Logger;
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.graphics.Color;
-import org.eclipse.swt.graphics.Font;
-import org.eclipse.swt.graphics.FontMetrics;
-import org.eclipse.swt.graphics.GC;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.graphics.ImageData;
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.swt.widgets.Text;
-
-/**
- * Helper class for loading resources. This should be error safe loaders with a
- * fall back in case the requested resource can't be found, or isn't of the
- * expected type.
- */
-public class ResourceLoader {
-
-	/**
-	 * Logger for this class
-	 */
-	private final static Logger LOGGER = Logger.getLogger(ResourceLoader.class);
-
-	public static ImageData getImageData(String path) {
-
-		ImageData _imgData = null;
-		URL _url = ResourceLoader.class.getResource(path);
-		if (_url == null) {
-			LOGGER.error("Resource not found: " + path);
-			return errorIcon("nope").getImageData();
-		} else {
-			try {
-				_imgData = new ImageData(_url.openStream());
-			} catch (Exception e) {
-				LOGGER.error("Resource not loadable: " + path + ". See trace: ", e);
-				return errorIcon("nope").getImageData();
-			}
-			return _imgData;
-		}
-	}
-
-	 /**
-	 * Helper that will create an icon with given text.
-	 * @param errorText Text to render to icon
-	 * @return the icon
-	 */
-	private static Image errorIcon(String errorText) {
-		GC gc = new GC(GuiManager.getDisplay());
-		Font font = new Font(GuiManager.getDisplay(), "Tahoma", 20, SWT.NORMAL);
-		gc.setFont(font);
-		// get dimensions of text
-    Image image = new Image(GuiManager.getDisplay(), gc.stringExtent(errorText).x, gc.stringExtent(errorText).y);
-    GC gc2 = new GC(image);
-    gc2.setBackground(GuiManager.getDisplay().getSystemColor(SWT.COLOR_CYAN));
-    gc2.drawText(errorText, 0, 0);
-    gc2.dispose();
-    return image;
-	}
-
-	/**
-	 * Tries to load the given resource treating it as a text file
-	 * 
-	 * @param path
-	 *          Resource path to load
-	 * @return content of the loaded resource as String
-	 */
-	public static String getTextFile(String path) {
-		String fileContent = null;
-		try {
-			fileContent = IOUtils.toString(ResourceLoader.class
-					.getResourceAsStream(path));
-		} catch (Exception e) {
-			LOGGER.error("IO error while trying to load resource '" + path
-					+ "'. See trace: ", e);
-		}
-
-		if (fileContent != null) {
-			return fileContent;
-		} else {
-			return "Resource '" + path + "' not found.";
-		}
-	}
-}
diff --git a/dozentenmodul/src/main/java/util/ServiceProviderResponse.java b/dozentenmodul/src/main/java/util/ServiceProviderResponse.java
deleted file mode 100644
index 37b93b33..00000000
--- a/dozentenmodul/src/main/java/util/ServiceProviderResponse.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package util;
-
-import java.util.HashMap;
-
-public class ServiceProviderResponse {
-	public String status;
-	public String firstName;
-	public String lastName;
-	public String mail;
-	public HashMap<String, String> satellites;
-	public String token;
-	public String sessionId;
-	public String url;
-	public String error;
-}
diff --git a/dozentenmodul/src/main/java/util/ShibbolethECP.java b/dozentenmodul/src/main/java/util/ShibbolethECP.java
deleted file mode 100644
index 7844a51e..00000000
--- a/dozentenmodul/src/main/java/util/ShibbolethECP.java
+++ /dev/null
@@ -1,172 +0,0 @@
-package util;
-
-import java.io.IOException;
-import java.net.MalformedURLException;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-
-import org.apache.http.HttpResponse;
-import org.apache.http.ParseException;
-import org.apache.http.client.ClientProtocolException;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.util.EntityUtils;
-import org.apache.log4j.Logger;
-import org.openslx.bwlp.thrift.iface.AuthenticationError;
-import org.openslx.bwlp.thrift.iface.TAuthenticationException;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonSyntaxException;
-
-import edu.kit.scc.dei.ecplean.ECPAuthenticationException;
-import edu.kit.scc.dei.ecplean.ECPAuthenticator;
-
-public class ShibbolethECP {
-
-	/**
-	 * Logger instance for this class
-	 */
-	private final static Logger LOGGER = Logger.getLogger(ShibbolethECP.class);
-
-	/**
-	 * Static gson object for (de)serialization
-	 */
-	private static final Gson GSON = new GsonBuilder().create();
-	
-	/**
-	 * ServiceProviderResponse Object representing the last response we received
-	 */
-	private static ServiceProviderResponse lastResponse = null;
-	/**
-	 * URL for bwLehrpool registration  
-	 */
-	private static URL registrationUrl = null;
-	/**
-	 * Return codes
-	 */
-	public static enum ReturnCode {
-		NO_ERROR(0, "Authentication against the identity provider and request of the service provider resource worked."),
-	  IDP_ERROR(1, "Authentication against the identity provider failed."),
-	  UNREG_ERROR(2, "User not registered to use bwLehrpool."),
-	  ERROR_SP(3, "Invalid resource of the service provider."),
-	  ERROR_URL(4, "Invalid URL received from master server."),
-		ERROR_OTHER(5, "Internal error.");
-
-	  private final int id;
-	  private final String msg;
-
-	  ReturnCode(int id, String msg) {
-	    this.id = id;
-	    this.msg = msg;
-	  }
-
-	  public int getId() {
-	    return this.id;
-	  }
-
-	  public String getMsg() {
-	    return this.msg;
-	  }
-	}
-	
-	/**
-	 * Static URI to the SP.
-	 */
-	private final static URI BWLP_SP;
-	static {
-		URI tmp;
-		try {
-			tmp = new URI("https://bwlp-masterserver.ruf.uni-freiburg.de/webif/shib/api.php");
-		} catch (URISyntaxException e) {
-			// should never happen!
-			LOGGER.error("Bad URI syntax of the service provider, see trace: ", e);
-			tmp = null;
-		}
-		BWLP_SP = tmp;
-	}
-
-	public static ServiceProviderResponse getResponse() {
-		return lastResponse;
-	}
-	/**
-	 * Fetches the resource
-	 *
-	 * @param idpUrl
-	 *            URL of the identity provider to authenticate against, as String.
-	 * @param user
-	 *            Username as String.
-	 * @param pass
-	 *            Password as String.
-	 * @return
-	 * 						true if login worked, false otherwise.
-	 * @throws TAuthenticationException
-	 */
-	public static ReturnCode doLogin(final String idpUrl, final String user, final String pass)
-			throws TAuthenticationException, URISyntaxException, ClientProtocolException, IOException,
-			ParseException, JsonSyntaxException, MalformedURLException {
-
-		// first lets do some sanity checks
-		if (BWLP_SP == null) {
-			LOGGER.error("URI to service provider is not set. Check the initialization of 'BWLP_SP'.");
-			return ReturnCode.ERROR_OTHER;
-		}
-		if (idpUrl == null) {
-			LOGGER.error("Identity provider is not set, did you initialize this class correctly?");
-			return ReturnCode.ERROR_OTHER;
-		}
-		if (user == null) {
-			LOGGER.error("No username given, aborting...");
-			return ReturnCode.ERROR_OTHER;
-		}
-		if (pass == null) {
-			LOGGER.error("No password given, aborting...");
-			return ReturnCode.ERROR_OTHER;
-		}
-
-		// now init the authenticator for that idp and our static sp
-		final ECPAuthenticator auth = new ECPAuthenticator(user, pass, new URI(idpUrl), BWLP_SP);
-		
-    try {
-			auth.authenticate();
-    } catch (ECPAuthenticationException e) {
-			LOGGER.error("ECP Authentication Exception, see trace: ", e);
-			throw new TAuthenticationException(AuthenticationError.GENERIC_ERROR, e.getMessage());
-    }
-    // here test again for the SP's URL
-    final HttpGet testSp = new HttpGet(BWLP_SP);
-    final HttpResponse response = auth.getHttpClient().execute(testSp);
-
-    LOGGER.debug("SP request returned: " + response.getStatusLine());
-    final String responseBody = EntityUtils.toString(response.getEntity());
-    
-    lastResponse = GSON.fromJson(responseBody, ServiceProviderResponse.class);
-
-    // TODO: here we will need to parse the answer accordingly.
-    // no errors, meaning everything worked fine.
-    if (lastResponse.status.equals("unregistered")) {
-			registrationUrl = new URL(lastResponse.url);
-			return ReturnCode.UNREG_ERROR;
-    }
-    // TODO the rest of the cases...
-    if (lastResponse.status.equals("error")) {
-    	LOGGER.error("Server side error: " + lastResponse.error);
-    	return ReturnCode.ERROR_OTHER;
-    }
-    if (lastResponse.status.equals("anonymous")) {
-    	LOGGER.error("IdP did not forward user account information to SP. Contact developper.");
-    	return ReturnCode.ERROR_OTHER;
-    }
-    if (lastResponse.status.equals("ok")) {
-    	return ReturnCode.NO_ERROR;
-    }
-    // still here? then something else went wrong
-    return ReturnCode.ERROR_OTHER;
-	}
-	/**
-	 * @return Registration URL given by the SP.
-	 */
-	public static URL getRegistrationUrl() {
-		return registrationUrl;
-	}
-}