Rework mobile BKU handling

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-over/trunk@371 174cde9d-5d70-4d2a-aa98-46368bc2aaf7

15 files changed, 644 insertions, 417 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/Constants.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/Constants.java
index d4c2a202..48448572 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/Constants.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/Constants.java
@@ -21,6 +21,8 @@ import java.util.Locale;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.widgets.Display;
 
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
+
 /**
  * Various constants
  */
@@ -89,6 +91,9 @@ public class Constants {
 	/** Default Mobile BKU URL */
 	public static final String DEFAULT_MOBILE_BKU_URL = "https://www.a-trust.at/mobile/https-security-layer-request/default.aspx"; //$NON-NLS-1$
 
+	/** Default Mobile BKU type */
+	public static final MobileBKUs DEFAULT_MOBILE_BKU_TYPE = MobileBKUs.A_TRUST;
+
 	/** Configuration directory */
 	public static String CONFIG_DIRECTORY = System.getProperty("user.home") + File.separator + ".pdf-over"; //$NON-NLS-1$ //$NON-NLS-2$
 
@@ -126,6 +131,9 @@ public class Constants {
 	/** Mobile bku url config parameter */
 	public static final String CFG_MOBILE_BKU_URL = "MOBILE_BKU_URL"; //$NON-NLS-1$
 
+	/** Mobile bku type config parameter */
+	public static final String CFG_MOBILE_BKU_TYPE = "MOBILE_BKU_TYPE"; //$NON-NLS-1$
+
 	/** The emblem config parameter */
 	public static final String CFG_EMBLEM = "EMBLEM"; //$NON-NLS-1$
 
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProvider.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProvider.java
index 7807079b..9f88573a 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProvider.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProvider.java
@@ -21,6 +21,7 @@ import java.util.Locale;
 
 import org.eclipse.swt.graphics.Point;
 
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
 import at.asit.pdfover.signator.BKUs;
 import at.asit.pdfover.signator.SignaturePosition;
 
@@ -29,7 +30,7 @@ import at.asit.pdfover.signator.SignaturePosition;
  */
 public interface ConfigProvider {
 	/**
-	 * Regex for parsing signature position
+	 * RegEx for parsing signature position
 	 */
 	public static final String SIGN_POS_REGEX = "(x=(\\d\\.?\\d?);y=(\\d\\.?\\d?);p=(\\d))|(auto)|(x=(\\d\\.?\\d?);y=(\\d\\.?\\d?))"; //$NON-NLS-1$
 
@@ -107,6 +108,12 @@ public interface ConfigProvider {
 	public String getMobileBKUURL();
 
 	/**
+	 * Gets the mobile BKU type
+	 * @return the mobile BKU type
+	 */
+	public MobileBKUs getMobileBKUType();
+
+	/**
 	 * Get the signature note text to use
 	 * @return the signature note text
 	 */
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProviderImpl.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProviderImpl.java
index 45a834ab..f7fe13a8 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProviderImpl.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigProviderImpl.java
@@ -35,6 +35,7 @@ import at.asit.pdfover.gui.exceptions.InvalidNumberException;
 import at.asit.pdfover.gui.exceptions.InvalidPortException;
 import at.asit.pdfover.gui.utils.LocaleSerializer;
 import at.asit.pdfover.gui.utils.Messages;
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
 import at.asit.pdfover.signator.BKUs;
 import at.asit.pdfover.signator.SignaturePosition;
 
@@ -123,6 +124,19 @@ public class ConfigProviderImpl implements ConfigProvider, ConfigManipulator,
 			this.configuration.setMobileBKUURL(bkuUrl);
 		}
 
+		String bkuType = config
+				.getProperty(Constants.CFG_MOBILE_BKU_TYPE);
+
+		if (bkuType != null && !bkuType.isEmpty()) {
+			try {
+				this.configuration.setMobileBKUType(MobileBKUs.valueOf(
+						bkuType.trim().toUpperCase()));
+			} catch (IllegalArgumentException e) {
+				log.error("Invalid BKU type: " + bkuType); //$NON-NLS-1$
+				this.configuration.setMobileBKUType(Constants.DEFAULT_MOBILE_BKU_TYPE);
+			}
+		}
+
 		// Set Proxy Port
 		String proxyPortString = config
 				.getProperty(Constants.CFG_PROXY_PORT);
@@ -775,6 +789,14 @@ public class ConfigProviderImpl implements ConfigProvider, ConfigManipulator,
 		return this.configuration.getMobileBKUURL();
 	}
 
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.ConfigProvider#getMobileBKUType()
+	 */
+	@Override
+	public MobileBKUs getMobileBKUType() {
+		return this.configuration.getMobileBKUType();
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * 
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainer.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainer.java
index 195ac144..0f068f64 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainer.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainer.java
@@ -22,6 +22,7 @@ import org.eclipse.swt.graphics.Point;
 import at.asit.pdfover.gui.exceptions.InvalidEmblemFile;
 import at.asit.pdfover.gui.exceptions.InvalidNumberException;
 import at.asit.pdfover.gui.exceptions.InvalidPortException;
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
 import at.asit.pdfover.signator.BKUs;
 import at.asit.pdfover.signator.SignaturePosition;
 
@@ -195,6 +196,18 @@ public interface ConfigurationContainer {
 	public void setMobileBKUURL(String bkuUrl);
 
 	/**
+	 * Gets the mobile BKU type
+	 * @return the mobile BKU type
+	 */
+	public MobileBKUs getMobileBKUType();
+
+	/**
+	 * Sets the mobile BKU type
+	 * @param bkuType the mobile BKU type
+	 */
+	public void setMobileBKUType(MobileBKUs bkuType);
+
+	/**
 	 * Gets the default signature position
 	 * @return the default signature position
 	 */
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainerImpl.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainerImpl.java
index cb2a1ee8..03bfc221 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainerImpl.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/ConfigurationContainerImpl.java
@@ -33,6 +33,7 @@ import at.asit.pdfover.gui.exceptions.InvalidNumberException;
 import at.asit.pdfover.gui.exceptions.InvalidPortException;
 import at.asit.pdfover.gui.utils.Messages;
 import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUHelper;
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
 import at.asit.pdfover.signator.BKUs;
 import at.asit.pdfover.signator.SignaturePosition;
 
@@ -87,6 +88,9 @@ public class ConfigurationContainerImpl implements ConfigurationContainer {
 	/** Holds the mobile BKU URL */
 	protected String mobileBKUURL = Constants.DEFAULT_MOBILE_BKU_URL;
 
+	/** Holds the mobile BKU type */
+	protected MobileBKUs mobileBKUType = Constants.DEFAULT_MOBILE_BKU_TYPE;
+
 	/** Holds the main window size */
 	protected Point mainWindowSize = null;
 
@@ -362,6 +366,24 @@ public class ConfigurationContainerImpl implements ConfigurationContainer {
 
 
 	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.ConfigurationContainer#getMobileBKUType()
+	 */
+	@Override
+	public MobileBKUs getMobileBKUType() {
+		return this.mobileBKUType;
+	}
+
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.ConfigurationContainer#setMobileBKUType(at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs)
+	 */
+	@Override
+	public void setMobileBKUType(MobileBKUs bkuType) {
+		this.mobileBKUType = bkuType;
+	}
+
+
+	/* (non-Javadoc)
 	 * @see at.asit.pdfover.gui.workflow.ConfigurationContainer#getSignaturePosition()
 	 */
 	@Override
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/PersistentConfigProvider.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/PersistentConfigProvider.java
index 764265fb..a0469d0d 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/PersistentConfigProvider.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/PersistentConfigProvider.java
@@ -19,6 +19,7 @@ import java.util.Locale;
 
 import org.eclipse.swt.graphics.Point;
 
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUs;
 import at.asit.pdfover.signator.BKUs;
 import at.asit.pdfover.signator.SignaturePosition;
 
@@ -91,6 +92,12 @@ public interface PersistentConfigProvider {
 	public String getMobileBKUURL();
 
 	/**
+	 * Gets the mobile BKU type
+	 * @return the mobile BKU type
+	 */
+	public MobileBKUs getMobileBKUType();
+
+	/**
 	 * Get the signature note text to use
 	 * @return the signature note text
 	 */
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/MobileBKUState.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/MobileBKUState.java
index 71e68d36..4d7c5985 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/MobileBKUState.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/MobileBKUState.java
@@ -29,7 +29,9 @@ import at.asit.pdfover.gui.controls.ErrorDialog;
 import at.asit.pdfover.gui.controls.Dialog.BUTTONS;
 import at.asit.pdfover.gui.utils.Messages;
 import at.asit.pdfover.gui.workflow.StateMachine;
+import at.asit.pdfover.gui.workflow.states.mobilebku.ATrustHandler;
 import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUCommunicationState;
+import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUHandler;
 import at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUStatus;
 import at.asit.pdfover.gui.workflow.states.mobilebku.PostCredentialsThread;
 import at.asit.pdfover.gui.workflow.states.mobilebku.PostSLRequestThread;
@@ -45,6 +47,16 @@ public class MobileBKUState extends State {
 	public MobileBKUState(StateMachine stateMachine) {
 		super(stateMachine);
 		this.status = new MobileBKUStatus(this.stateMachine.getConfigProvider());
+		switch(this.stateMachine.getConfigProvider().getMobileBKUType()) {
+			case A_TRUST:
+				this.handler = new ATrustHandler(this);
+				break;
+
+			case IAIK:
+				//TODO
+				break;
+		}
+
 	}
 
 	/**
@@ -62,6 +74,8 @@ public class MobileBKUState extends State {
 
 	MobileBKUStatus status = null;
 
+	MobileBKUHandler handler = null;
+
 	MobileBKUEnterNumberComposite mobileBKUEnterNumberComposite = null;
 
 	MobileBKUEnterTANComposite mobileBKUEnterTANComposite = null;
@@ -99,13 +113,30 @@ public class MobileBKUState extends State {
 	}
 
 	/**
-	 * @return the status
+	 * Get the MobileBKUStatus
+	 * @return the MobileBKUStatus
 	 */
 	public MobileBKUStatus getStatus() {
 		return this.status;
 	}
 
 	/**
+	 * Get the MobileBKUHandler
+	 * @return the MobileBKUHandler
+	 */
+	public MobileBKUHandler getHandler() {
+		return this.handler;
+	}
+
+	/**
+	 * Get the mobile BKU URL
+	 * @return the mobile BKU URL
+	 */
+	public String getURL() {
+		return this.stateMachine.getConfigProvider().getMobileBKUURL();
+	}
+
+	/**
 	 * @return the communicationState
 	 */
 	public MobileBKUCommunicationState getCommunicationState() {
@@ -165,9 +196,8 @@ public class MobileBKUState extends State {
 		case POST_REQUEST:
 			this.stateMachine.getGUIProvider().display(
 					this.getWaitingComposite());
-			Thread postSLRequestThread = new Thread(new PostSLRequestThread(
-					this, this.stateMachine.getConfigProvider()
-							.getMobileBKUURL()));
+			Thread postSLRequestThread = new Thread(
+					new PostSLRequestThread(this));
 			postSLRequestThread.start();
 			break;
 		case POST_NUMBER:
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/ATrustHandler.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/ATrustHandler.java
new file mode 100644
index 00000000..4093102b
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/ATrustHandler.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.workflow.states.mobilebku;
+
+// Imports
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.gui.workflow.states.MobileBKUState;
+import at.asit.pdfover.signator.SLResponse;
+
+/**
+ * A-Trust mobile BKU handler
+ */
+public class ATrustHandler extends MobileBKUHandler {
+	/**
+	 * @param state
+	 */
+	public ATrustHandler(MobileBKUState state) {
+		super(state);
+	}
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	private static final Logger log = LoggerFactory
+			.getLogger(ATrustHandler.class);
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUHandler#handleSLRequestResponse(java.lang.String)
+	 */
+	@Override
+	public void handleSLRequestResponse(String responseData) throws Exception {
+		// Extract infos:
+
+		String sessionID = MobileBKUHelper.extractTag(responseData,
+				"identification.aspx?sid=", "\""); //$NON-NLS-1$ //$NON-NLS-2$
+
+		String viewState = MobileBKUHelper.extractTag(responseData,
+				"id=\"__VIEWSTATE\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
+
+		String eventValidation = MobileBKUHelper.extractTag(responseData,
+				"id=\"__EVENTVALIDATION\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
+
+		log.info("sessionID: " + sessionID); //$NON-NLS-1$
+		log.info("viewState: " + viewState); //$NON-NLS-1$
+		log.info("eventValidation: " + eventValidation); //$NON-NLS-1$
+
+		getStatus().setSessionID(sessionID);
+
+		getStatus().setViewstate(viewState);
+
+		getStatus().setEventvalidation(eventValidation);
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUHandler#handleCredentialsResponse(java.lang.String)
+	 */
+	@Override
+	public void handleCredentialsResponse(String responseData) throws Exception {
+		MobileBKUStatus status = getStatus();
+		String viewState = status.getViewstate();
+		String eventValidation = status.getEventvalidation();
+		String sessionID = status.getSessionID();
+		String refVal = null;
+
+		status.setRefVal(null);
+		status.setErrorMessage(null);
+
+		if(responseData.contains("signature.aspx?sid=")) { //$NON-NLS-1$
+			// credentials ok! TAN entry
+			sessionID = MobileBKUHelper.extractTag(responseData, "signature.aspx?sid=", "\""); //$NON-NLS-1$ //$NON-NLS-2$
+			viewState = MobileBKUHelper.extractTag(responseData, "id=\"__VIEWSTATE\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
+			eventValidation = MobileBKUHelper.extractTag(responseData, "id=\"__EVENTVALIDATION\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
+			refVal = MobileBKUHelper.extractTag(responseData, "id='vergleichswert'><b>Vergleichswert:</b>", "</div>");  //$NON-NLS-1$//$NON-NLS-2$
+
+			status.setRefVal(refVal);
+			getState().setCommunicationState(MobileBKUCommunicationState.POST_TAN);
+		} else {
+			// error page
+			// extract error text!
+			String errorMessage = MobileBKUHelper.extractTag(responseData, "<span id=\"Label1\" class=\"ErrorClass\">", "</span>"); //$NON-NLS-1$ //$NON-NLS-2$
+
+			status.setErrorMessage(errorMessage);
+
+			// force UI again!
+			status.setMobilePassword(null);
+		}
+
+		log.info("sessionID: " + sessionID); //$NON-NLS-1$
+		log.info("Vergleichswert: " + refVal); //$NON-NLS-1$
+		log.info("viewState: " + viewState); //$NON-NLS-1$
+		log.info("eventValidation: " + eventValidation); //$NON-NLS-1$
+
+		status.setSessionID(sessionID);
+		status.setViewstate(viewState);
+		status.setEventvalidation(eventValidation);
+	}
+
+	/* (non-Javadoc)
+	 * @see at.asit.pdfover.gui.workflow.states.mobilebku.MobileBKUHandler#handleTANResponse(java.lang.String)
+	 */
+	@Override
+	public void handleTANResponse(String responseData) {
+		if (responseData.contains("sl:CreateXMLSignatureResponse xmlns:sl")) { //$NON-NLS-1$
+			// success !!
+			
+			getSigningState().setSignatureResponse(
+					new SLResponse(responseData, getStatus().getServer(), null, null));
+			getState().setCommunicationState(MobileBKUCommunicationState.FINAL);
+		} else {
+			getStatus().decreaseTanTries();
+
+			if (getStatus().getTanTries() <= 0) {
+				// move to POST_REQUEST
+				getState().setCommunicationState(MobileBKUCommunicationState.POST_REQUEST);
+			}
+		}
+	}
+
+}
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUHandler.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUHandler.java
new file mode 100644
index 00000000..3cef5edf
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUHandler.java
@@ -0,0 +1,315 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.workflow.states.mobilebku;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.httpclient.Header;
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpException;
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.apache.commons.httpclient.methods.PostMethod;
+import org.apache.commons.httpclient.methods.multipart.FilePart;
+import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
+import org.apache.commons.httpclient.methods.multipart.Part;
+import org.apache.commons.httpclient.methods.multipart.PartSource;
+import org.apache.commons.httpclient.methods.multipart.StringPart;
+import org.apache.commons.httpclient.protocol.Protocol;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.gui.workflow.states.LocalBKUState;
+import at.asit.pdfover.gui.workflow.states.MobileBKUState;
+import at.asit.pdfover.signator.DocumentSource;
+import at.asit.pdfover.signator.SLRequest;
+import at.asit.pdfover.signator.SigningState;
+
+/**
+ * A mobile BKU Handler
+ */
+public abstract class MobileBKUHandler {
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory
+			.getLogger(MobileBKUHandler.class);
+
+	private MobileBKUState state;
+
+	/**
+	 * A FileUploadSource
+	 */
+	private final class FileUploadSource implements PartSource {
+
+		private DocumentSource source;
+
+		/**
+		 * Constructor
+		 * 
+		 * @param source
+		 *            the source
+		 */
+		public FileUploadSource(DocumentSource source) {
+			this.source = source;
+		}
+
+		@Override
+		public long getLength() {
+			return this.source.getLength();
+		}
+
+		@Override
+		public String getFileName() {
+			return "sign.pdf"; //$NON-NLS-1$
+		}
+
+		@Override
+		public InputStream createInputStream() throws IOException {
+			return this.source.getInputStream();
+		}
+	}
+
+	/**
+	 * Constructor
+	 * @param state the MobileBKUState
+	 */
+	public MobileBKUHandler(MobileBKUState state)
+	{
+		this.state = state;
+	}
+
+	/**
+	 * Post the SL request
+	 * @param mobileBKUUrl mobile BKU URL
+	 * @return the response
+	 * @throws IOException IO error
+	 */
+	public String postSLRequest(String mobileBKUUrl) throws IOException {
+		/*
+		 * String sl_request = this.state.getSigningState()
+		 * .getSignatureRequest().getBase64Request();
+		 */
+		String sl_request = getSignatureRequest().getFileUploadRequest();
+
+		log.debug("SL Request: " + sl_request); //$NON-NLS-1$
+
+		Protocol.registerProtocol("https", //$NON-NLS-1$
+				new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
+
+		HttpClient client = new HttpClient();
+		client.getParams().setParameter("http.useragent", //$NON-NLS-1$
+				LocalBKUState.PDF_OVER_USER_AGENT_STRING);
+
+		PostMethod post = new PostMethod(mobileBKUUrl);
+
+		//method.addParameter("XMLRequest", sl_request); //$NON-NLS-1$
+
+		StringPart xmlpart = new StringPart(
+				"XMLRequest", sl_request, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
+
+		FilePart filepart = new FilePart("fileupload",	//$NON-NLS-1$
+				new FileUploadSource(getSignatureRequest().getSignatureData()));
+
+		Part[] parts = { xmlpart, filepart };
+
+		post.setRequestEntity(new MultipartRequestEntity(parts, post
+				.getParams()));
+
+		this.state.getStatus().setBaseURL(
+				MobileBKUHelper.stripQueryString(mobileBKUUrl));
+
+		return executePost(client, post);
+	}
+
+	/**
+	 * Handle the response to the SL request post
+	 * @param responseData response data
+	 * @throws Exception Error during handling
+	 */
+	public abstract void handleSLRequestResponse(String responseData) throws Exception;
+
+
+	/**
+	 * Post the credentials
+	 * @return the response
+	 * @throws IOException IO error
+	 * @throws HttpException HTTP error
+	 */
+	public String postCredentials() throws HttpException, IOException {
+		MobileBKUStatus status = getStatus();
+
+		Protocol.registerProtocol("https", //$NON-NLS-1$
+				new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
+
+		HttpClient client = new HttpClient();
+		client.getParams().setParameter("http.useragent", //$NON-NLS-1$
+				LocalBKUState.PDF_OVER_USER_AGENT_STRING);
+
+		PostMethod post = new PostMethod(status.getBaseURL() + "/identification.aspx?sid=" + status.getSessionID()); //$NON-NLS-1$
+		post.getParams().setContentCharset("utf-8"); //$NON-NLS-1$
+		post.addParameter("__VIEWSTATE", status.getViewstate()); //$NON-NLS-1$
+		post.addParameter("__EVENTVALIDATION", status.getEventvalidation()); //$NON-NLS-1$
+		post.addParameter("handynummer", status.getPhoneNumber()); //$NON-NLS-1$
+		post.addParameter("signaturpasswort", status.getMobilePassword()); //$NON-NLS-1$
+		post.addParameter("Button_Identification", "Identifizieren"); //$NON-NLS-1$ //$NON-NLS-2$
+
+		return executePost(client, post);
+	}
+
+	/**
+	 * Handle the response to credentials post
+	 * @param responseData response data
+	 * @throws Exception Error during handling
+	 */
+	public abstract void handleCredentialsResponse(String responseData) throws Exception;
+
+	/**
+	 * Post the TAN
+	 * @return the response
+	 * @throws IOException IO error
+	 * @throws HttpException HTTP error
+	 */
+	public String postTAN() throws HttpException, IOException {
+		MobileBKUStatus status = this.state.getStatus();
+
+		Protocol.registerProtocol("https", //$NON-NLS-1$
+				new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
+
+		HttpClient client = new HttpClient();
+		client.getParams().setParameter("http.useragent", //$NON-NLS-1$
+				LocalBKUState.PDF_OVER_USER_AGENT_STRING);
+
+		PostMethod post = new PostMethod(status.getBaseURL()
+				+ "/signature.aspx?sid=" + status.getSessionID()); //$NON-NLS-1$
+		post.getParams().setContentCharset("utf-8"); //$NON-NLS-1$
+		post.addParameter("__VIEWSTATE", status.getViewstate()); //$NON-NLS-1$
+		post.addParameter(
+				"__EVENTVALIDATION", status.getEventvalidation()); //$NON-NLS-1$
+		post.addParameter("input_tan", status.getTan()); //$NON-NLS-1$
+		post.addParameter("SignButton", "Signieren"); //$NON-NLS-1$ //$NON-NLS-2$
+		post.addParameter("Button1", "Identifizieren"); //$NON-NLS-1$ //$NON-NLS-2$
+
+		return executePost(client, post);
+	}
+
+	/**
+	 * Handle the response to TAN post
+	 * @param responseData response data
+	 * @throws Exception Error during handling
+	 */
+	public abstract void handleTANResponse(String responseData) throws Exception;
+
+	/**
+	 * Get the MobileBKUState
+	 * @return the MobileBKUState
+	 */
+	protected MobileBKUState getState() {
+		return this.state;
+	}
+
+	/**
+	 * Get the MobileBKUStatus
+	 * @return the MobileBKUStatus
+	 */
+	protected MobileBKUStatus getStatus() {
+		return this.state.getStatus();
+	}
+
+	/**
+	 * Get the SigningState
+	 * @return the SigningState
+	 */
+	protected SigningState getSigningState() {
+		return getState().getSigningState();
+	}
+
+	/**
+	 * Get the SLRequest
+	 * @return the SLRequest
+	 */
+	private SLRequest getSignatureRequest() {
+		return getSigningState().getSignatureRequest();
+	}
+
+	/**
+	 * Execute a post to the mobile BKU, following redirects
+	 * @param client the HttpClient
+	 * @param post the PostMethod
+	 * @return the response
+	 * @throws IOException IO error
+	 */
+	private String executePost(HttpClient client, PostMethod post) throws IOException {
+		int returnCode = client.executeMethod(post);
+
+		String redirectLocation = null;
+
+		GetMethod get = null;
+
+		String responseData = null;
+
+		String server = null;
+
+		// Follow redirects
+		do {
+			// check return code
+			if (returnCode == HttpStatus.SC_MOVED_TEMPORARILY ||
+				returnCode == HttpStatus.SC_MOVED_PERMANENTLY) {
+
+				Header locationHeader = post.getResponseHeader("location"); //$NON-NLS-1$
+				if (locationHeader != null) {
+					redirectLocation = locationHeader.getValue();
+				} else {
+					throw new IOException(
+							"Got HTTP 302 but no location to follow!"); //$NON-NLS-1$
+				}
+			} else if (returnCode == HttpStatus.SC_OK) {
+				if (get != null) {
+					responseData = get.getResponseBodyAsString();
+
+					Header serverHeader = get.getResponseHeader(
+							LocalBKUState.BKU_RESPONSE_HEADER_SERVER);
+					if (serverHeader != null)
+						server = serverHeader.getValue();
+				} else {
+					responseData = post.getResponseBodyAsString();
+
+					Header serverHeader = post.getResponseHeader(
+							LocalBKUState.BKU_RESPONSE_HEADER_SERVER);
+					if (serverHeader != null)
+						server = serverHeader.getValue();
+				}
+				redirectLocation = null;
+			} else {
+				throw new HttpException(
+						HttpStatus.getStatusText(returnCode));
+			}
+
+			if (redirectLocation != null) {
+				get = new GetMethod(redirectLocation);
+				get.setFollowRedirects(true);
+				returnCode = client.executeMethod(get);
+			}
+		} while (redirectLocation != null);
+
+		getStatus().setServer(server);
+		if (server != null)
+			log.info("Server: " + server); //$NON-NLS-1$
+
+		return responseData;
+	}
+}
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUStatus.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUStatus.java
index 78dad7a5..3066f683 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUStatus.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUStatus.java
@@ -36,7 +36,19 @@ public class MobileBKUStatus {
 	 * Maximum number of TAN tries!
 	 */
 	public static final int MOBILE_MAX_TAN_TRIES = 3;
-	
+
+	private String viewstate;
+	private String eventvalidation;
+	private String sessionID;
+	private String phoneNumber;
+	private String mobilePassword;
+	private String baseURL;
+	private String refVal;
+	private String errorMessage;
+	private String tan;
+	private String server;
+	private int tanTries = MOBILE_MAX_TAN_TRIES;
+
 	/**
 	 * Constructor
 	 * @param provider 
@@ -45,27 +57,7 @@ public class MobileBKUStatus {
 		this.setPhoneNumber(provider.getDefaultMobileNumber());
 		this.setMobilePassword(provider.getDefaultMobilePassword());
 	}
-	
-	String viewstate;
-
-	String eventvalidation;
 
-	String sessionID;
-
-	String phoneNumber;
-	
-	String mobilePassword;
-
-	String baseURL;
-	
-	String refVal;
-	
-	String errorMessage;
-	
-	String tan;
-	
-	int tanTries = MOBILE_MAX_TAN_TRIES;
-	
 	/**
 	 * @return the tanTries
 	 */
@@ -207,5 +199,19 @@ public class MobileBKUStatus {
 		this.sessionID = sessionID;
 	}
 
+	/**
+	 * Return the SL request server
+	 * @return the SL request server
+	 */
+	public String getServer() {
+		return this.server;
+	}
 
+	/**
+	 * Set the SL request server
+	 * @param server the SL request server
+	 */
+	public void setServer(String server) {
+		this.server = server;
+	}
 }
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUs.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUs.java
new file mode 100644
index 00000000..ac4bdef9
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/MobileBKUs.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.workflow.states.mobilebku;
+
+/**
+ * Available mobile BKUs
+ */
+public enum MobileBKUs {
+	/** A-Trust BKU */
+	A_TRUST,
+
+	/** IAIK */
+	IAIK
+}
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostCredentialsThread.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostCredentialsThread.java
index 45656404..b57143a5 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostCredentialsThread.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostCredentialsThread.java
@@ -16,19 +16,9 @@
 package at.asit.pdfover.gui.workflow.states.mobilebku;
 
 // Imports
-import java.io.IOException;
-
-import org.apache.commons.httpclient.Header;
-import org.apache.commons.httpclient.HttpClient;
-import org.apache.commons.httpclient.HttpException;
-import org.apache.commons.httpclient.HttpStatus;
-import org.apache.commons.httpclient.methods.GetMethod;
-import org.apache.commons.httpclient.methods.PostMethod;
-import org.apache.commons.httpclient.protocol.Protocol;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import at.asit.pdfover.gui.workflow.states.LocalBKUState;
 import at.asit.pdfover.gui.workflow.states.MobileBKUState;
 
 /**
@@ -43,13 +33,16 @@ public class PostCredentialsThread implements Runnable {
 
 	private MobileBKUState state;
 
+	private MobileBKUHandler handler;
+
 	/**
 	 * Constructor
 	 * 
-	 * @param state
+	 * @param state the MobileBKUState
 	 */
 	public PostCredentialsThread(MobileBKUState state) {
 		this.state = state;
+		this.handler = state.getHandler();
 	}
 	
 	/* (non-Javadoc)
@@ -58,117 +51,12 @@ public class PostCredentialsThread implements Runnable {
 	@Override
 	public void run() {
 		try {
-			MobileBKUStatus status = this.state.getStatus();
-			
-			
-			Protocol.registerProtocol("https", //$NON-NLS-1$
-					new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
-
-			HttpClient client = new HttpClient();
-			client.getParams().setParameter("http.useragent", //$NON-NLS-1$
-					LocalBKUState.PDF_OVER_USER_AGENT_STRING);
-			
-			
-			
-			PostMethod method = new PostMethod(status.getBaseURL() + "/identification.aspx?sid=" + status.getSessionID()); //$NON-NLS-1$
-			method.getParams().setContentCharset("utf-8"); //$NON-NLS-1$
-			method.addParameter("__VIEWSTATE", status.getViewstate()); //$NON-NLS-1$
-			method.addParameter("__EVENTVALIDATION", status.getEventvalidation()); //$NON-NLS-1$
-			method.addParameter("handynummer", status.getPhoneNumber()); //$NON-NLS-1$
-			method.addParameter("signaturpasswort", status.getMobilePassword()); //$NON-NLS-1$
-			method.addParameter("Button_Identification", "Identifizieren"); //$NON-NLS-1$ //$NON-NLS-2$
-			
-			
-			
-			int returnCode = client.executeMethod(method);
-
-			String redirectLocation = null;
-
-			GetMethod gmethod = null;
-			
-			String responseData = null;
-			
-			// Follow redirects
-			do {
-				// check return code
-				if (returnCode == HttpStatus.SC_MOVED_TEMPORARILY ||
-					returnCode == HttpStatus.SC_MOVED_PERMANENTLY) {
-
-					Header locationHeader = method
-							.getResponseHeader("location");  //$NON-NLS-1$
-					if (locationHeader != null) {
-						redirectLocation = locationHeader.getValue();
-					} else {
-						throw new IOException(
-								"Got HTTP 302 but no location to follow!");  //$NON-NLS-1$
-					}
-				} else if(returnCode == HttpStatus.SC_OK) {
-					if(gmethod != null) {
-						responseData = gmethod.getResponseBodyAsString();
-					} else {
-						responseData = method.getResponseBodyAsString();
-					} 
-					redirectLocation = null;
-				} else {
-					throw new HttpException(HttpStatus.getStatusText(returnCode));
-				}
-				
-				if(redirectLocation != null) {
-					gmethod = new GetMethod(redirectLocation);
-					gmethod.setFollowRedirects(true);
-					returnCode = client.executeMethod(gmethod);
-				}
-				
-			} while(redirectLocation != null);
+			String responseData = this.handler.postCredentials();
 
 			// Now we have received some data lets check it:
-			
-			log.debug("Repsonse from A-Trust: " + responseData); //$NON-NLS-1$
-			
-			String viewState = status.getViewstate();
-			String eventValidation = status.getEventvalidation();
-			String sessionID = status.getSessionID();
-			
-			String refVal = null;
-			
-			status.setRefVal(null);
-			status.setErrorMessage(null);
-			
-			if(responseData.contains("signature.aspx?sid=")) { //$NON-NLS-1$
-				// credentials ok! TAN eingabe
-				sessionID = MobileBKUHelper.extractTag(responseData, "signature.aspx?sid=", "\""); //$NON-NLS-1$ //$NON-NLS-2$
-				viewState = MobileBKUHelper.extractTag(responseData, "id=\"__VIEWSTATE\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
-				
-				eventValidation = MobileBKUHelper.extractTag(responseData, "id=\"__EVENTVALIDATION\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
-				
-				refVal = MobileBKUHelper.extractTag(responseData, "id='vergleichswert'><b>Vergleichswert:</b>", "</div>");  //$NON-NLS-1$//$NON-NLS-2$
-				
-				status.setRefVal(refVal);
-				
-				this.state.setCommunicationState(MobileBKUCommunicationState.POST_TAN);
-			} else {
-				// error seite
-				// extract error text!
-				
-				String errorMessage = MobileBKUHelper.extractTag(responseData, "<span id=\"Label1\" class=\"ErrorClass\">", "</span>"); //$NON-NLS-1$ //$NON-NLS-2$
-				
-				this.state.getStatus().setErrorMessage(errorMessage);
-				
-				// force UI again!
-				status.setMobilePassword(null);
-			}
-			
-			log.info("sessionID: " + sessionID); //$NON-NLS-1$
-			log.info("Vergleichswert: " + refVal); //$NON-NLS-1$
-			log.info("viewState: " + viewState); //$NON-NLS-1$
-			log.info("eventValidation: " + eventValidation); //$NON-NLS-1$
-			
-			status.setSessionID(sessionID);
-			
-			status.setViewstate(viewState);
-			
-			status.setEventvalidation(eventValidation);
-			
+			log.debug("Response from A-Trust: " + responseData); //$NON-NLS-1$
+
+			this.handler.handleCredentialsResponse(responseData);
 		} catch (Exception ex) {
 			log.error("Error in PostCredentialsThread", ex); //$NON-NLS-1$
 			this.state.setThreadException(ex);
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostSLRequestThread.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostSLRequestThread.java
index 4de8f6fc..09944acf 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostSLRequestThread.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostSLRequestThread.java
@@ -16,66 +16,16 @@
 package at.asit.pdfover.gui.workflow.states.mobilebku;
 
 // Imports
-import java.io.IOException;
-import java.io.InputStream;
-
-import org.apache.commons.httpclient.Header;
-import org.apache.commons.httpclient.HttpClient;
-import org.apache.commons.httpclient.HttpException;
-import org.apache.commons.httpclient.HttpStatus;
-import org.apache.commons.httpclient.methods.GetMethod;
-import org.apache.commons.httpclient.methods.PostMethod;
-import org.apache.commons.httpclient.methods.multipart.FilePart;
-import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
-import org.apache.commons.httpclient.methods.multipart.Part;
-import org.apache.commons.httpclient.methods.multipart.PartSource;
-import org.apache.commons.httpclient.methods.multipart.StringPart;
-import org.apache.commons.httpclient.protocol.Protocol;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import at.asit.pdfover.gui.workflow.states.LocalBKUState;
 import at.asit.pdfover.gui.workflow.states.MobileBKUState;
-import at.asit.pdfover.signator.DocumentSource;
 
 /**
  * 
  */
 public class PostSLRequestThread implements Runnable {
 	/**
-	 * 
-	 */
-	private final class FileUploadSource implements PartSource {
-
-		private DocumentSource source;
-
-		/**
-		 * Constructor
-		 * 
-		 * @param source
-		 *            the source
-		 */
-		public FileUploadSource(DocumentSource source) {
-			this.source = source;
-		}
-
-		@Override
-		public long getLength() {
-			return this.source.getLength();
-		}
-
-		@Override
-		public String getFileName() {
-			return "sign.pdf"; //$NON-NLS-1$
-		}
-
-		@Override
-		public InputStream createInputStream() throws IOException {
-			return this.source.getInputStream();
-		}
-	}
-
-	/**
 	 * SLF4J Logger instance
 	 **/
 	private static final Logger log = LoggerFactory
@@ -85,15 +35,17 @@ public class PostSLRequestThread implements Runnable {
 
 	private String mobileBKUUrl;
 
+	private MobileBKUHandler mobileBKUHandler;
+
 	/**
 	 * Constructor
 	 * 
-	 * @param state
-	 * @param mobileBKUUrl
+	 * @param state the MobileBKUState
 	 */
-	public PostSLRequestThread(MobileBKUState state, String mobileBKUUrl) {
+	public PostSLRequestThread(MobileBKUState state) {
 		this.state = state;
-		this.mobileBKUUrl = mobileBKUUrl;
+		this.mobileBKUUrl = state.getURL();
+		this.mobileBKUHandler = state.getHandler();
 	}
 
 	/*
@@ -104,115 +56,19 @@ public class PostSLRequestThread implements Runnable {
 	@Override
 	public void run() {
 		try {
-			/*
-			 * String sl_request = this.state.getSigningState()
-			 * .getSignatureRequest().getBase64Request();
-			 */
-			String sl_request = this.state.getSigningState()
-					.getSignatureRequest().getFileUploadRequest();
-
-			log.debug("SL Request: " + sl_request); //$NON-NLS-1$
-
-			Protocol.registerProtocol("https", //$NON-NLS-1$
-					new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
-
-			HttpClient client = new HttpClient();
-			client.getParams().setParameter("http.useragent", //$NON-NLS-1$
-					LocalBKUState.PDF_OVER_USER_AGENT_STRING);
-
-			String url = this.mobileBKUUrl;
 
-			PostMethod method = new PostMethod(url);
-
-			//method.addParameter("XMLRequest", sl_request); //$NON-NLS-1$
-
-			StringPart xmlpart = new StringPart(
-					"XMLRequest", sl_request, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$
-
-			FilePart filepart = new FilePart("fileupload",	//$NON-NLS-1$
-					new FileUploadSource(this.state.getSigningState()
-							.getSignatureRequest().getSignatureData())); 
-
-			Part[] parts = { xmlpart, filepart };
-
-			method.setRequestEntity(new MultipartRequestEntity(parts, method
-					.getParams()));
-			int returnCode = client.executeMethod(method);
-
-			String redirectLocation = null;
-
-			GetMethod gmethod = null;
-
-			String responseData = null;
-
-			this.state.getStatus().setBaseURL(
-					MobileBKUHelper.stripQueryString(url));
-
-			// Follow redirects
-			do {
-				// check return code
-				if (returnCode == HttpStatus.SC_MOVED_TEMPORARILY
-						|| returnCode == HttpStatus.SC_MOVED_PERMANENTLY) {
-
-					Header locationHeader = method
-							.getResponseHeader("location"); //$NON-NLS-1$
-					if (locationHeader != null) {
-						redirectLocation = locationHeader.getValue();
-					} else {
-						throw new IOException(
-								"Got HTTP 302 but no location to follow!"); //$NON-NLS-1$
-					}
-				} else if (returnCode == HttpStatus.SC_OK) {
-					if (gmethod != null) {
-						responseData = gmethod.getResponseBodyAsString();
-					} else {
-						responseData = method.getResponseBodyAsString();
-					}
-					redirectLocation = null;
-				} else {
-					throw new HttpException(
-							HttpStatus.getStatusText(returnCode));
-				}
-
-				if (redirectLocation != null) {
-					gmethod = new GetMethod(redirectLocation);
-					gmethod.setFollowRedirects(true);
-					returnCode = client.executeMethod(gmethod);
-				}
-
-			} while (redirectLocation != null);
+			String responseData = this.mobileBKUHandler.postSLRequest(this.mobileBKUUrl);
 
 			// Now we have received some data lets check it:
+			log.debug("Response from mobile BKU: " + responseData); //$NON-NLS-1$
 
-			log.debug("Response from A-Trust: " + responseData); //$NON-NLS-1$
-
-			// Extract infos:
-
-			String sessionID = MobileBKUHelper.extractTag(responseData,
-					"identification.aspx?sid=", "\""); //$NON-NLS-1$ //$NON-NLS-2$
-
-			String viewState = MobileBKUHelper.extractTag(responseData,
-					"id=\"__VIEWSTATE\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
-
-			String eventValidation = MobileBKUHelper.extractTag(responseData,
-					"id=\"__EVENTVALIDATION\" value=\"", "\""); //$NON-NLS-1$  //$NON-NLS-2$
-
-			log.info("sessionID: " + sessionID); //$NON-NLS-1$
-			log.info("viewState: " + viewState); //$NON-NLS-1$
-			log.info("eventValidation: " + eventValidation); //$NON-NLS-1$
-
-			this.state.getStatus().setSessionID(sessionID);
-
-			this.state.getStatus().setViewstate(viewState);
-
-			this.state.getStatus().setEventvalidation(eventValidation);
+			this.mobileBKUHandler.handleSLRequestResponse(responseData);
 
 			/*
 			 * If all went well we can set the communication state to the new
 			 * state
 			 */
-			this.state
-					.setCommunicationState(MobileBKUCommunicationState.POST_NUMBER);
+			this.state.setCommunicationState(MobileBKUCommunicationState.POST_NUMBER);
 		} catch (Exception ex) {
 			log.error("Error in PostSLRequestThread", ex); //$NON-NLS-1$
 			this.state.setThreadException(ex);
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostTanThread.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostTanThread.java
index 21c4e86e..0774cf7a 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostTanThread.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/states/mobilebku/PostTanThread.java
@@ -16,21 +16,10 @@
 package at.asit.pdfover.gui.workflow.states.mobilebku;
 
 // Imports
-import java.io.IOException;
-
-import org.apache.commons.httpclient.Header;
-import org.apache.commons.httpclient.HttpClient;
-import org.apache.commons.httpclient.HttpException;
-import org.apache.commons.httpclient.HttpStatus;
-import org.apache.commons.httpclient.methods.GetMethod;
-import org.apache.commons.httpclient.methods.PostMethod;
-import org.apache.commons.httpclient.protocol.Protocol;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import at.asit.pdfover.gui.workflow.states.LocalBKUState;
 import at.asit.pdfover.gui.workflow.states.MobileBKUState;
-import at.asit.pdfover.signator.SLResponse;
 
 /**
  * 
@@ -44,6 +33,8 @@ public class PostTanThread implements Runnable {
 
 	private MobileBKUState state;
 
+	private MobileBKUHandler handler;
+
 	/**
 	 * Constructor
 	 * 
@@ -51,6 +42,7 @@ public class PostTanThread implements Runnable {
 	 */
 	public PostTanThread(MobileBKUState state) {
 		this.state = state;
+		this.handler = state.getHandler();
 	}
 
 	/*
@@ -61,107 +53,13 @@ public class PostTanThread implements Runnable {
 	@Override
 	public void run() {
 		try {
-			MobileBKUStatus status = this.state.getStatus();
-
-			Protocol.registerProtocol("https", //$NON-NLS-1$
-					new Protocol("https", new TrustedSocketFactory(), 443)); //$NON-NLS-1$
-
-			HttpClient client = new HttpClient();
-			client.getParams().setParameter("http.useragent", //$NON-NLS-1$
-					LocalBKUState.PDF_OVER_USER_AGENT_STRING);
-
-			PostMethod method = new PostMethod(status.getBaseURL()
-					+ "/signature.aspx?sid=" + status.getSessionID()); //$NON-NLS-1$
-			method.getParams().setContentCharset("utf-8"); //$NON-NLS-1$
-			method.addParameter("__VIEWSTATE", status.getViewstate()); //$NON-NLS-1$
-			method.addParameter(
-					"__EVENTVALIDATION", status.getEventvalidation()); //$NON-NLS-1$
-			method.addParameter("input_tan", status.getTan()); //$NON-NLS-1$
-			method.addParameter("SignButton", "Signieren"); //$NON-NLS-1$ //$NON-NLS-2$
-			method.addParameter("Button1", "Identifizieren"); //$NON-NLS-1$ //$NON-NLS-2$
-
-			int returnCode = client.executeMethod(method);
-
-			String redirectLocation = null;
-
-			GetMethod gmethod = null;
-
-			String responseData = null;
-
-			String server = ""; //$NON-NLS-1$
-
-			// Follow redirects
-			do {
-				// check return code
-				if (returnCode == HttpStatus.SC_MOVED_TEMPORARILY
-						|| returnCode == HttpStatus.SC_MOVED_PERMANENTLY) {
-
-					Header locationHeader = method
-							.getResponseHeader("location"); //$NON-NLS-1$
-					if (locationHeader != null) {
-						redirectLocation = locationHeader.getValue();
-					} else {
-						throw new IOException(
-								"Got HTTP 302 but no location to follow!"); //$NON-NLS-1$
-					}
-				} else if (returnCode == HttpStatus.SC_OK) {
-
-					if (gmethod != null) {
-						responseData = gmethod.getResponseBodyAsString();
-
-						if (gmethod
-								.getResponseHeader(LocalBKUState.BKU_RESPONSE_HEADER_SERVER) != null) {
-							server = gmethod.getResponseHeader(
-									LocalBKUState.BKU_RESPONSE_HEADER_SERVER)
-									.getValue();
-						}
-
-					} else {
-						responseData = method.getResponseBodyAsString();
-
-						if (method
-								.getResponseHeader(LocalBKUState.BKU_RESPONSE_HEADER_SERVER) != null) {
-							server = method.getResponseHeader(
-									LocalBKUState.BKU_RESPONSE_HEADER_SERVER)
-									.getValue();
-						}
-
-					}
-					redirectLocation = null;
-				} else {
-					throw new HttpException(
-							HttpStatus.getStatusText(returnCode));
-				}
-
-				if (redirectLocation != null) {
-					gmethod = new GetMethod(redirectLocation);
-					gmethod.setFollowRedirects(true);
-					returnCode = client.executeMethod(gmethod);
-				}
-
-			} while (redirectLocation != null);
+			String responseData = this.handler.postTAN();
 
 			// Now we have received some data lets check it:
+			log.debug("Response from A-Trust: " + responseData); //$NON-NLS-1$
 
-			log.debug("Repsonse from A-Trust: " + responseData); //$NON-NLS-1$
-
-			log.info("Server: " + server); //$NON-NLS-1$
-
-			if (responseData.contains("sl:CreateXMLSignatureResponse xmlns:sl")) { //$NON-NLS-1$
-				// success !!
-				
-				this.state.getSigningState().setSignatureResponse(
-						new SLResponse(responseData, server, null, null));
-				this.state
-						.setCommunicationState(MobileBKUCommunicationState.FINAL);
-			} else {
-				status.decreaseTanTries();
+			this.handler.handleTANResponse(responseData);
 
-				if (status.getTanTries() <= 0) {
-					// move to POST_REQUEST
-					this.state.setCommunicationState(MobileBKUCommunicationState.POST_REQUEST);
-				}
-			}
 		} catch (Exception ex) {
 			log.error("Error in PostTanThread", ex); //$NON-NLS-1$
 			this.state.setThreadException(ex);
diff --git a/pdf-over-signator/src/main/java/at/asit/pdfover/signator/BKUs.java b/pdf-over-signator/src/main/java/at/asit/pdfover/signator/BKUs.java
index a55d3940..774508a6 100644
--- a/pdf-over-signator/src/main/java/at/asit/pdfover/signator/BKUs.java
+++ b/pdf-over-signator/src/main/java/at/asit/pdfover/signator/BKUs.java
@@ -20,18 +20,12 @@ package at.asit.pdfover.signator;
  * 
  */
 public enum BKUs {
-	/**
-	 * Local bku
-	 */
+	/** Local BKU */
 	LOCAL,
 
-	/**
-	 * Mobile bku
-	 */
+	/** Mobile BKU */
 	MOBILE,
 
-	/**
-	 * None bku
-	 */
+	/** No BKU */
 	NONE
 }