Add QR code display for A-Trust Handy-Signatur app

6 files changed, 751 insertions, 27 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/MobileBKUConnector.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/MobileBKUConnector.java
index c97a59c3..06b60155 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/MobileBKUConnector.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/MobileBKUConnector.java
@@ -19,7 +19,10 @@ package at.asit.pdfover.gui.bku;
 import org.slf4j.Logger;

 import org.slf4j.LoggerFactory;

 

+import at.asit.pdfover.gui.bku.mobile.ATrustHandler;

+import at.asit.pdfover.gui.bku.mobile.ATrustStatus;

 import at.asit.pdfover.gui.bku.mobile.MobileBKUHandler;

+import at.asit.pdfover.gui.bku.mobile.MobileBKUStatus;

 import at.asit.pdfover.gui.workflow.states.MobileBKUState;

 import at.asit.pdfover.signator.BkuSlConnector;

 import at.asit.pdfover.signator.SLRequest;

@@ -105,26 +108,54 @@ public class MobileBKUConnector implements BkuSlConnector {
 			}

 	

 			do {

-				// Get TAN

-				this.state.checkTAN();

+				MobileBKUStatus status = this.state.getStatus();

+				boolean enterTAN = true;

+				String responseData = null;

+				if (status instanceof ATrustStatus) {

+					ATrustStatus aStatus = (ATrustStatus) status;

+					ATrustHandler aHandler = (ATrustHandler) handler;

+					if (aStatus.getQRCode() != null) {

+						this.state.showQR();

+						if (this.state.getStatus().getErrorMessage() != null &&

+								this.state.getStatus().getErrorMessage().equals("cancel")) //$NON-NLS-1$

+							throw new SignatureException(new IllegalStateException());

+						if (aStatus.getQRCode() == null) {

+							try {

+								String response = aHandler.postSMSRequest();

+								log.trace("Response from mobile BKU: " + response); //$NON-NLS-1$

+								handler.handleCredentialsResponse(response);

+							} catch (Exception ex) {

+								log.error("Error in PostCredentialsThread", ex); //$NON-NLS-1$

+								this.state.setThreadException(ex);

+								this.state.displayError(ex);

+								throw new SignatureException(ex);

+							}

+						} else {

+							enterTAN = false;

+						}

+					}

+				}

+				if (enterTAN) {

+					// Get TAN

+					this.state.checkTAN();

 

-				if (this.state.getStatus().getErrorMessage() != null &&

-						this.state.getStatus().getErrorMessage().equals("cancel")) //$NON-NLS-1$

-					throw new SignatureException(new IllegalStateException());

+					if (this.state.getStatus().getErrorMessage() != null &&

+							this.state.getStatus().getErrorMessage().equals("cancel")) //$NON-NLS-1$

+						throw new SignatureException(new IllegalStateException());

 

-				// Post TAN

-				try {

-					String responseData = handler.postTAN();

-		

-					// Now we have received some data lets check it:

-					log.trace("Response from mobile BKU: " + responseData); //$NON-NLS-1$

-		

-					handler.handleTANResponse(responseData);

-				} catch (Exception ex) {

-					log.error("Error in PostTanThread", ex); //$NON-NLS-1$

-					this.state.setThreadException(ex);

-					this.state.displayError(ex);

-					throw new SignatureException(ex);

+					// Post TAN

+					try {

+						responseData = handler.postTAN();

+						log.trace("Response from mobile BKU: " + responseData); //$NON-NLS-1$

+

+						// Now we have received some data lets check it:

+						handler.handleTANResponse(responseData);

+					} catch (Exception ex) {

+						log.error("Error in PostTanThread", ex); //$NON-NLS-1$

+						this.state.setThreadException(ex);

+						this.state.displayError(ex);

+						throw new SignatureException(ex);

+					}

 				}

 			} while (this.state.getStatus().getErrorMessage() != null);

 			if (this.state.getStatus().getTanTries() == -1)

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustHandler.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustHandler.java
index 1a796565..b7e457c3 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustHandler.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustHandler.java
@@ -18,9 +18,12 @@ package at.asit.pdfover.gui.bku.mobile;
 // Imports
 import java.awt.Desktop;
 import java.io.IOException;
+import java.io.InputStream;
 import java.net.URI;
 
 import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpStatus;
+import org.apache.commons.httpclient.methods.GetMethod;
 import org.apache.commons.httpclient.methods.PostMethod;
 import org.apache.commons.lang3.StringEscapeUtils;
 import org.eclipse.swt.SWT;
@@ -137,6 +140,7 @@ public class ATrustHandler extends MobileBKUHandler {
 		String sessionID = status.getSessionID();
 		String refVal = null;
 		String signatureDataURL = null;
+		String qrCode = null;
 
 		status.setErrorMessage(null);
 
@@ -192,11 +196,18 @@ public class ATrustHandler extends MobileBKUHandler {
 			// credentials ok! TAN entry
 			log.debug("Credentials accepted - TAN required"); //$NON-NLS-1$
 			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>");  //$NON-NLS-1$//$NON-NLS-2$
-			signatureDataURL = status.getBaseURL() + "/ShowSigobj.aspx" +  //$NON-NLS-1$
-					MobileBKUHelper.extractTag(responseData, "ShowSigobj.aspx", "'");  //$NON-NLS-1$//$NON-NLS-2$
+			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>"); //$NON-NLS-1$ //$NON-NLS-2$
+			signatureDataURL = status.getBaseURL() + "/ShowSigobj.aspx" + //$NON-NLS-1$
+					MobileBKUHelper.extractTag(responseData, "ShowSigobj.aspx", "'"); //$NON-NLS-1$ //$NON-NLS-2$
+			try {
+				qrCode = MobileBKUHelper.extractTag(responseData, "<img class='qrcode' src='", "'"); //$NON-NLS-1$ //$NON-NLS-2$
+				log.debug("QR Code found: " + qrCode); //$NON-NLS-1$
+				status.setQRCode(qrCode);
+			} catch (Exception e) {
+				log.debug("No QR Code found"); //$NON-NLS-1$
+			}
 		} else if (responseData.contains("sl:InfoboxReadResponse")) { //$NON-NLS-1$
 			// credentials ok! InfoboxReadResponse
 			log.debug("Credentials accepted - Response given"); //$NON-NLS-1$
@@ -298,6 +309,93 @@ public class ATrustHandler extends MobileBKUHandler {
 		}
 	}
 
+	/**
+	 * Cancel QR process, request SMS TAN
+	 * @return the response
+	 * @throws IOException Error during posting
+	 */
+	public String postSMSRequest() throws IOException {
+		ATrustStatus status = getStatus();
+
+		MobileBKUHelper.registerTrustedSocketFactory();
+		HttpClient client = BKUHelper.getHttpClient();
+
+		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("__EVENTTARGET", "SmsButton"); //$NON-NLS-1$ //$NON-NLS-2$
+		post.addParameter("__EVENTARGUMENT", ""); //$NON-NLS-1$ //$NON-NLS-2$
+
+		return executePost(client, post);
+	}
+
+	/**
+	 * Get the QR code image
+	 * @return the QR code image as a String
+	 */
+	public InputStream getQRCode() {
+		ATrustStatus status = getStatus();
+
+		MobileBKUHelper.registerTrustedSocketFactory();
+		HttpClient client = BKUHelper.getHttpClient();
+
+		GetMethod get = new GetMethod(status.getBaseURL() + "/" + //$NON-NLS-1$
+				status.getQRCode());
+
+		try {
+			log.debug("Getting " + get.getURI()); //$NON-NLS-1$
+			int returnCode = client.executeMethod(get);
+
+			if (returnCode != HttpStatus.SC_OK) {
+				log.error("Error getting QR code"); //$NON-NLS-1$
+				return null;
+			}
+
+			return get.getResponseBodyAsStream();
+		} catch (Exception e) {
+			log.error("Error getting QR code", e); //$NON-NLS-1$
+			return null;
+		}
+	}
+
+	/**
+	 * Get Signature page after scanning QR code
+	 * @return the response
+	 * @throws IOException Error during get
+	 */
+	public String getSignaturePage() throws IOException {
+		ATrustStatus status = getStatus();
+
+		MobileBKUHelper.registerTrustedSocketFactory();
+		HttpClient client = BKUHelper.getHttpClient();
+
+		GetMethod get = new GetMethod(status.getBaseURL()
+				+ "/signature.aspx?sid=" + status.getSessionID()); //$NON-NLS-1$
+
+		return executeGet(client, get);
+	}
+
+	/**
+	 * Parse QR code response
+	 * @param responseData
+	 * @return whether a SL response was received
+	 */
+	public boolean handleQRResponse(String responseData) {
+		getStatus().setErrorMessage(null);
+		if (responseData.contains("sl:CreateXMLSignatureResponse xmlns:sl") || //$NON-NLS-1$
+		    responseData.contains("sl:CreateCMSSignatureResponse xmlns:sl")) { //$NON-NLS-1$
+			// success !!
+
+			getSigningState().setSignatureResponse(
+					new SLResponse(responseData, getStatus().getServer(), null, null));
+			return true;
+		}
+		return false;
+	}
+
 	@Override
 	public ATrustStatus getStatus() {
 		return (ATrustStatus) getState().getStatus();
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustStatus.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustStatus.java
index 3fedf73e..a97826b2 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustStatus.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/ATrustStatus.java
@@ -37,6 +37,7 @@ public class ATrustStatus extends AbstractMobileBKUStatusImpl {
 
 	private String viewstate;
 	private String eventvalidation;
+	private String qrcode = null;
 
 	/**
 	 * Constructor
@@ -69,7 +70,7 @@ public class ATrustStatus extends AbstractMobileBKUStatusImpl {
 	public void setViewstate(String viewstate) {
 		this.viewstate = viewstate;
 	}
-	
+
 	/**
 	 * @return the eventvalidation
 	 */
@@ -83,4 +84,20 @@ public class ATrustStatus extends AbstractMobileBKUStatusImpl {
 	public void setEventvalidation(String eventvalidation) {
 		this.eventvalidation = eventvalidation;
 	}
+
+	/**
+	 * @return the QR code
+	 */
+	public String getQRCode() {
+		return this.qrcode;
+	}
+
+	/**
+	 * @param qrcode
+	 *            the QR code to set
+	 */
+	public void setQRCode(String qrcode) {
+		this.qrcode = qrcode;
+	}
+	
 }
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/MobileBKUHandler.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/MobileBKUHandler.java
index 429000f1..6c6b9f84 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/MobileBKUHandler.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/bku/mobile/MobileBKUHandler.java
@@ -238,8 +238,11 @@ public abstract class MobileBKUHandler {
 				Matcher m = pat.matcher(responseData);
 				if (m.find()) {
 					String content = m.group(1);
-					int start = content.indexOf("URL=") +9; //$NON-NLS-1$
-					redirectLocation  = content.substring(start, content.length() - 5);
+					int start = content.indexOf("URL="); //$NON-NLS-1$
+					if (start != -1) {
+						start += 9;
+						redirectLocation  = content.substring(start, content.length() - 5);
+					}
 				}
 			} else {
 				throw new HttpException(
@@ -261,4 +264,84 @@ public abstract class MobileBKUHandler {
 
 		return responseData;
 	}
+
+	/**
+	 * Execute a get from the mobile BKU, following redirects
+	 * @param client the HttpClient
+	 * @param get the GetMethod
+	 * @return the response
+	 * @throws IOException IO error
+	 */
+	protected String executeGet(HttpClient client, GetMethod get) throws IOException {
+		log.debug("Getting " + get.getURI()); //$NON-NLS-1$
+		int returnCode = client.executeMethod(get);
+
+		String redirectLocation = null;
+
+		GetMethod get2 = 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 = get.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 (get2 != null) {
+					responseData = get2.getResponseBodyAsString();
+					Header serverHeader = get2.getResponseHeader(
+							LocalBKUState.BKU_RESPONSE_HEADER_SERVER);
+					if (serverHeader != null)
+						server = serverHeader.getValue();
+				} else {
+					responseData = get.getResponseBodyAsString();
+
+					Header serverHeader = get.getResponseHeader(
+							LocalBKUState.BKU_RESPONSE_HEADER_SERVER);
+					if (serverHeader != null)
+						server = serverHeader.getValue();
+				}
+				redirectLocation = null;
+				String p = "<meta [^>]*http-equiv=\"refresh\" [^>]*content=\"([^\"]*)\""; //$NON-NLS-1$
+				Pattern pat = Pattern.compile(p);
+				Matcher m = pat.matcher(responseData);
+				if (m.find()) {
+					String content = m.group(1);
+					int start = content.indexOf("URL="); //$NON-NLS-1$
+					if (start != -1) {
+						start += 9;
+						redirectLocation  = content.substring(start, content.length() - 5);
+					}
+				}
+			} else {
+				throw new HttpException(
+						HttpStatus.getStatusText(returnCode));
+			}
+
+			if (redirectLocation != null) {
+				redirectLocation = getStatus().ensureSessionID(redirectLocation);
+				log.debug("Redirected to " + redirectLocation); //$NON-NLS-1$
+				get2 = new GetMethod(redirectLocation);
+				get2.setFollowRedirects(true);
+				returnCode = client.executeMethod(get2);
+			}
+		} 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/composites/MobileBKUQRComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUQRComposite.java
new file mode 100644
index 00000000..206dcc40
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/composites/MobileBKUQRComposite.java
@@ -0,0 +1,405 @@
+/*
+ * 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.composites;
+
+// Imports
+import java.awt.Desktop;
+import java.io.InputStream;
+import java.net.URI;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.PaintEvent;
+import org.eclipse.swt.events.PaintListener;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.layout.FormAttachment;
+import org.eclipse.swt.layout.FormData;
+import org.eclipse.swt.layout.FormLayout;
+import org.eclipse.swt.program.Program;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Link;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.asit.pdfover.gui.Constants;
+import at.asit.pdfover.gui.utils.Messages;
+import at.asit.pdfover.gui.workflow.states.State;
+
+/**
+ * Composite for displaying the QR code for the mobile BKU
+ */
+public class MobileBKUQRComposite extends StateComposite {
+
+	/**
+	 * 
+	 */
+	private final class SMSSelectionListener extends SelectionAdapter {
+		/**
+		 * Empty constructor
+		 */
+		public SMSSelectionListener() {
+		}
+
+		@Override
+		public void widgetSelected(SelectionEvent e) {
+			if(!MobileBKUQRComposite.this.btn_sms.getEnabled()) {
+				return;
+			}
+
+			MobileBKUQRComposite.this.setUserSMS(true);
+			MobileBKUQRComposite.this.btn_sms.setEnabled(false);
+		}
+	}
+
+	/**
+	 * 
+	 */
+	private final class CancelSelectionListener extends SelectionAdapter {
+		/**
+		 * Empty constructor
+		 */
+		public CancelSelectionListener() {
+		}
+
+		@Override
+		public void widgetSelected(SelectionEvent e) {
+			MobileBKUQRComposite.this.setUserCancel(true);
+		}
+	}
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	static final Logger log = LoggerFactory
+			.getLogger(MobileBKUQRComposite.class);
+
+	private Label lblQR;
+
+	boolean userCancel = false;
+	boolean userSMS = false;
+	boolean done = false;
+
+	private Label lblRefVal;
+
+	String refVal;
+
+	String signatureData;
+
+	/**
+	 * @return the signatureData
+	 */
+	public String getSignatureData() {
+		return this.signatureData;
+	}
+
+	/**
+	 * @param signatureData
+	 *            the signatureData to set
+	 */
+	public void setSignatureData(String signatureData) {
+		this.signatureData = signatureData;
+	}
+
+	private Label lblError;
+	private Label lblRefValLabel;
+	private Label lblQRLabel;
+
+	Button btn_sms;
+	Button btn_cancel;
+
+	Link lnk_sig_data;
+
+	/**
+	 * @return the userCancel
+	 */
+	public boolean isUserCancel() {
+		return this.userCancel;
+	}
+
+	/**
+	 * @return the userSMS
+	 */
+	public boolean isUserSMS() {
+		return this.userSMS;
+	}
+
+	/**
+	 * @return the done
+	 */
+	public boolean isDone() {
+		return this.done;
+	}
+
+	/**
+	 * Set an error message
+	 * @param errorMessage the error message
+	 */
+	public void setErrorMessage(String errorMessage) {
+		if (errorMessage == null)
+			this.lblError.setText(""); //$NON-NLS-1$
+		else
+			this.lblError.setText(
+					Messages.getString("error.Title") + ": " + errorMessage); //$NON-NLS-1$ //$NON-NLS-2$
+	}
+
+	/**
+	 * @param userCancel
+	 *            the userCancel to set
+	 */
+	public void setUserCancel(boolean userCancel) {
+		this.userCancel = userCancel;
+	}
+
+	/**
+	 * @param userSMS
+	 *            the userSMS to set
+	 */
+	public void setUserSMS(boolean userSMS) {
+		this.userSMS = userSMS;
+	}
+
+	/**
+	 * @param done
+	 *            the done to set
+	 */
+	public void setDone(boolean done) {
+		this.done = done;
+	}
+
+	/**
+	 * @return the reference value
+	 */
+	public String getRefVal() {
+		return this.refVal;
+	}
+
+	/**
+	 * @param refVal
+	 *            the reference value to set
+	 */
+	public void setRefVal(String refVal) {
+		this.refVal = refVal.trim();
+
+		if (this.refVal != null) {
+			this.lblRefVal.setText(this.refVal);
+		} else {
+			this.lblRefVal.setText(""); //$NON-NLS-1$
+		}
+
+	}
+
+	/**
+	 * @param qrcode
+	 *            the qrcode to set
+	 */
+	public void setQR(InputStream qrcode) {
+		if (qrcode == null) {
+			setErrorMessage(Messages.getString("error.FailedToLoadQRCode")); //$NON-NLS-1$
+			return;
+		}
+		Image qr = new Image(Display.getCurrent(), qrcode);
+		this.lblQR.setImage(qr);
+	}
+
+	/**
+	 * Selection Listener for open button
+	 */
+	private final class ShowSignatureDataListener extends SelectionAdapter {
+		/**
+		 * Empty constructor
+		 */
+		public ShowSignatureDataListener() {
+		}
+
+		@Override
+		public void widgetSelected(SelectionEvent e) {
+			try {
+				String signatureData = MobileBKUQRComposite.this
+						.getSignatureData();
+				if (signatureData != null && !signatureData.equals("")) { //$NON-NLS-1$
+					log.debug("Trying to open " + signatureData); //$NON-NLS-1$
+					if (Desktop.isDesktopSupported()) {
+						Desktop.getDesktop().browse(new URI(signatureData));
+					} else {
+						log.info("SWT Desktop is not supported on this platform"); //$NON-NLS-1$
+						Program.launch(signatureData);
+					}
+				}
+			} catch (Exception ex) {
+				log.error("OpenSelectionListener: ", ex); //$NON-NLS-1$
+			}
+		}
+	}
+
+	/**
+	 * Create the composite.
+	 * 
+	 * @param parent
+	 * @param style
+	 * @param state
+	 */
+	public MobileBKUQRComposite(Composite parent, int style, State state) {
+		super(parent, style, state);
+		setLayout(new FormLayout());
+
+		final Composite containerComposite = new Composite(this, SWT.NATIVE);
+		containerComposite.addPaintListener(new PaintListener() {
+			@Override
+			public void paintControl(PaintEvent e) {
+				Rectangle clientArea = containerComposite.getClientArea();
+
+				// e.gc.setForeground();
+				e.gc.setForeground(Constants.MAINBAR_ACTIVE_BACK_DARK);
+				e.gc.setLineWidth(3);
+				e.gc.setLineStyle(SWT.LINE_SOLID);
+				e.gc.drawRoundRectangle(clientArea.x, clientArea.y,
+						clientArea.width - 2, clientArea.height - 2, 10, 10);
+			}
+		});
+		containerComposite.setLayout(new FormLayout());
+		FormData fd_containerComposite = new FormData();
+		fd_containerComposite.top = new FormAttachment(50, -120);
+		fd_containerComposite.bottom = new FormAttachment(50, 120);
+		fd_containerComposite.left = new FormAttachment(50, -200);
+		fd_containerComposite.right = new FormAttachment(50, 200);
+		containerComposite.setLayoutData(fd_containerComposite);
+
+		this.lblRefValLabel = new Label(containerComposite, SWT.NATIVE);
+		this.lblRefValLabel.setAlignment(SWT.RIGHT);
+		FormData fd_lblRefValLabel = new FormData();
+		// fd_lblRefValLabel.left = new FormAttachment(0, 20);
+		fd_lblRefValLabel.right = new FormAttachment(50, -10);
+		fd_lblRefValLabel.top = new FormAttachment(30, -10);
+		//fd_lblRefValLabel.bottom = new FormAttachment(50, -10);
+		this.lblRefValLabel.setLayoutData(fd_lblRefValLabel);
+
+		Label lbl_image = new Label(containerComposite, SWT.NATIVE);
+
+		ImageData data = new ImageData(this.getClass().getResourceAsStream(
+				Constants.RES_IMG_MOBILE));
+		Image mobile = new Image(getDisplay(), data);
+
+		FormData fd_lbl_image = new FormData();
+		fd_lbl_image.top = new FormAttachment(50, -1 * (data.width / 2));
+		fd_lbl_image.bottom = new FormAttachment(50, data.width / 2);
+		fd_lbl_image.left = new FormAttachment(0, 10);
+		fd_lbl_image.width = data.width;
+		lbl_image.setLayoutData(fd_lbl_image);
+		lbl_image.setImage(mobile);
+
+		this.lblRefVal = new Label(containerComposite, SWT.NATIVE);
+		FormData fd_lblRefVal = new FormData();
+		fd_lblRefVal.left = new FormAttachment(50, 10);
+		fd_lblRefVal.right = new FormAttachment(100, -20);
+		fd_lblRefVal.top = new FormAttachment(30, -10);
+		//fd_lblRefVal.bottom = new FormAttachment(50, -10);
+		this.lblRefVal.setLayoutData(fd_lblRefVal);
+		this.lblRefVal.setText(""); //$NON-NLS-1$
+
+		this.lblQRLabel = new Label(containerComposite, SWT.NATIVE);
+		this.lblQRLabel.setAlignment(SWT.RIGHT);
+		FormData fd_lblQRLabel = new FormData();
+		// fd_lblQRLabel.left = new FormAttachment(0, 20);
+		fd_lblQRLabel.right = new FormAttachment(50, -10);
+		fd_lblQRLabel.top = new FormAttachment(this.lblRefValLabel, 10);
+		// fd_lblQRLabel.bottom = new FormAttachment(50, 15);
+		this.lblQRLabel.setLayoutData(fd_lblQRLabel);
+
+		this.lblQR = new Label(containerComposite, SWT.NATIVE);
+		FormData fd_lblQR = new FormData();
+		fd_lblQR.left = new FormAttachment(50, 10);
+		fd_lblQR.right = new FormAttachment(100, -20);
+		fd_lblQR.top = new FormAttachment(this.lblRefVal, 10);
+		this.lblQR.setLayoutData(fd_lblQR);
+
+		this.lnk_sig_data = new Link(containerComposite, SWT.NATIVE | SWT.RESIZE);
+
+		FormData fd_lnk_data = new FormData();
+		fd_lnk_data.right = new FormAttachment(100, -20);
+		fd_lnk_data.top = new FormAttachment(0, 20);
+		this.lnk_sig_data.setEnabled(true);
+		this.lnk_sig_data.setLayoutData(fd_lnk_data);
+		this.lnk_sig_data.addSelectionListener(new ShowSignatureDataListener());
+
+		this.btn_cancel = new Button(containerComposite, SWT.NATIVE);
+		this.btn_sms = new Button(containerComposite, SWT.NATIVE);
+
+		this.lblError = new Label(containerComposite, SWT.WRAP | SWT.NATIVE);
+		FormData fd_lbl_error = new FormData();
+		// fd_lbl_error.left = new FormAttachment(15, 5);
+		fd_lbl_error.right = new FormAttachment(this.btn_sms, -10);
+		// fd_lbl_error.top = new FormAttachment(70, -15);
+		fd_lbl_error.bottom = new FormAttachment(100, -20);
+		this.lblError.setLayoutData(fd_lbl_error);
+
+		FormData fd_btn_cancel = new FormData();
+		// fd_btn_cancel.left = new FormAttachment(95, 0);
+		fd_btn_cancel.right = new FormAttachment(100, -20);
+		//fd_btn_cancel.left = new FormAttachment(100, -70);
+		fd_btn_cancel.bottom = new FormAttachment(100, -20);
+
+		this.btn_cancel.setLayoutData(fd_btn_cancel);
+		this.btn_cancel.addSelectionListener(new CancelSelectionListener());
+
+		FormData fd_btn_sms = new FormData();
+		// fd_btn_sms.left = new FormAttachment(95, 0);
+		fd_btn_sms.right = new FormAttachment(this.btn_cancel, -20);
+		//fd_btn_sms.left = new FormAttachment(100, -70);
+		fd_btn_sms.bottom = new FormAttachment(100, -20);
+
+		this.btn_sms.setLayoutData(fd_btn_sms);
+		this.btn_sms.addSelectionListener(new SMSSelectionListener());
+
+		reloadResources();
+	}
+
+	@Override
+	protected void checkSubclass() {
+		// Disable the check that prevents subclassing of SWT components
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see at.asit.pdfover.gui.composites.StateComposite#doLayout()
+	 */
+	@Override
+	public void doLayout() {
+		// Nothing to do
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see at.asit.pdfover.gui.composites.StateComposite#reloadResources()
+	 */
+	@Override
+	public void reloadResources() {
+		this.lblRefValLabel.setText(Messages
+				.getString("tanEnter.ReferenceValue")); //$NON-NLS-1$
+		this.lblQRLabel.setText(Messages.getString("tanEnter.QR")); //$NON-NLS-1$
+		this.lnk_sig_data.setText(Messages.getString("mobileBKU.show")); //$NON-NLS-1$
+		this.lnk_sig_data.setToolTipText(Messages.getString("mobileBKU.show_tooltip")); //$NON-NLS-1$
+		this.btn_cancel.setText(Messages.getString("common.Cancel")); //$NON-NLS-1$
+		this.btn_sms.setText(Messages.getString("tanEnter.SMS")); //$NON-NLS-1$
+	}
+}
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 5d97262c..bd88b48d 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
@@ -15,6 +15,10 @@
  */
 package at.asit.pdfover.gui.workflow.states;
 
+import java.io.InputStream;
+import java.util.Timer;
+import java.util.TimerTask;
+
 // Imports
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Display;
@@ -32,6 +36,7 @@ import at.asit.pdfover.gui.bku.mobile.MobileBKUHandler;
 import at.asit.pdfover.gui.bku.mobile.MobileBKUStatus;
 import at.asit.pdfover.gui.composites.MobileBKUEnterNumberComposite;
 import at.asit.pdfover.gui.composites.MobileBKUEnterTANComposite;
+import at.asit.pdfover.gui.composites.MobileBKUQRComposite;
 import at.asit.pdfover.gui.composites.WaitingComposite;
 import at.asit.pdfover.gui.controls.Dialog.BUTTONS;
 import at.asit.pdfover.gui.controls.ErrorDialog;
@@ -70,7 +75,7 @@ public class MobileBKUState extends State {
 	/**
 	 * SLF4J Logger instance
 	 **/
-	private static final Logger log = LoggerFactory
+	static final Logger log = LoggerFactory
 			.getLogger(MobileBKUState.class);
 
 	SigningState signingState;
@@ -85,6 +90,8 @@ public class MobileBKUState extends State {
 
 	MobileBKUEnterTANComposite mobileBKUEnterTANComposite = null;
 
+	MobileBKUQRComposite mobileBKUQRComposite = null;
+
 	WaitingComposite waitingComposite = null;
 
 	WaitingComposite getWaitingComposite() {
@@ -106,6 +113,16 @@ public class MobileBKUState extends State {
 		return this.mobileBKUEnterTANComposite;
 	}
 
+	MobileBKUQRComposite getMobileBKUQRComposite() {
+		if (this.mobileBKUQRComposite == null) {
+			this.mobileBKUQRComposite = getStateMachine()
+					.getGUIProvider().createComposite(
+							MobileBKUQRComposite.class, SWT.RESIZE, this);
+		}
+
+		return this.mobileBKUQRComposite;
+	}
+
 	MobileBKUEnterNumberComposite getMobileBKUEnterNumberComposite() {
 		if (this.mobileBKUEnterNumberComposite == null) {
 			this.mobileBKUEnterNumberComposite = getStateMachine()
@@ -311,6 +328,79 @@ public class MobileBKUState extends State {
 		});
 	}
 
+	/**
+	 * Show QR code
+	 */
+	public void showQR() {
+		final ATrustStatus status = (ATrustStatus) this.getStatus();
+		final ATrustHandler handler = (ATrustHandler) this.getHandler();
+
+		final Timer checkDone = new Timer(true);
+		checkDone.scheduleAtFixedRate(new TimerTask() {
+			
+			@Override
+			public void run() {
+				// ping signature page to see if code has been scanned
+				try {
+					String resp = handler.getSignaturePage();
+					if (handler.handleQRResponse(resp)) {
+						log.debug("Signature page response: " + resp); //$NON-NLS-1$
+						getMobileBKUQRComposite().setDone(true);
+						Display display = getStateMachine().getGUIProvider().
+								getMainShell().getDisplay();
+						display.wake();
+					}
+					Display.getDefault().wake();
+				} catch (Exception e) {
+					log.error("Error getting signature page", e); //$NON-NLS-1$
+				}
+			}
+		}, 0, 5000);
+		Display.getDefault().syncExec(new Runnable() {
+			@Override
+			public void run() {
+				MobileBKUQRComposite qr = getMobileBKUQRComposite();
+		
+				qr.setRefVal(status.getRefVal());
+				qr.setSignatureData(status.getSignatureDataURL());
+				qr.setErrorMessage(status.getErrorMessage());
+				InputStream qrcode = handler.getQRCode();
+				if (qrcode == null) {
+					MobileBKUState.this.threadException = new Exception(
+							Messages.getString("error.FailedToLoadQRCode")); //$NON-NLS-1$
+				}
+				qr.setQR(qrcode);
+				getStateMachine().getGUIProvider().display(qr);
+
+				Display display = getStateMachine().getGUIProvider().getMainShell().getDisplay(); 
+				while (!qr.isUserCancel() && !qr.isUserSMS() && !qr.isDone()) {
+					if (!display.readAndDispatch()) {
+						display.sleep();
+					}
+				}
+				checkDone.cancel();
+
+				if (qr.isUserCancel()) {
+					qr.setUserCancel(false);
+					status.setErrorMessage("cancel"); //$NON-NLS-1$
+					return;
+				}
+
+				if (qr.isUserSMS()) {
+					qr.setUserSMS(false);
+					status.setQRCode(null);
+				}
+
+				if (qr.isDone())
+					qr.setDone(false);
+
+				// show waiting composite
+				getStateMachine().getGUIProvider().display(
+						MobileBKUState.this.getWaitingComposite());
+			}
+		});
+	}
+
 	/*
 	 * (non-Javadoc)
 	 *