tools/etfw/org.eclipse.ptp.etfw.tau/src/org/eclipse/ptp/etfw/tau/TAUPortalUploadDialog.java - ptp/org.eclipse.ptp - Git at Google

 /****************************************************************************
  *			Tuning and Analysis Utilities
  *			http://www.cs.uoregon.edu/research/paracomp/tau
  ****************************************************************************
  * Copyright (c) 1997-2006
  *    Department of Computer and Information Science, University of Oregon
  *    Advanced Computing Laboratory, Los Alamos National Laboratory
  *    Research Center Juelich, ZAM Germany
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Wyatt Spear - initial API and implementation
  ****************************************************************************/
 package org.eclipse.ptp.etfw.tau;

 import java.io.BufferedReader;
 import java.io.File;
 import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
 import java.io.RandomAccessFile;
 import java.io.UnsupportedEncodingException;
 import java.net.URL;
 import java.net.URLConnection;
 import java.net.URLEncoder;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.security.Provider;
 import java.security.SecureRandom;
 import java.security.Security;
 import java.util.StringTokenizer;

 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.HttpsURLConnection;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLSession;
 import javax.net.ssl.TrustManager;
 import javax.net.ssl.X509TrustManager;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.window.Window;
 import org.eclipse.ptp.etfw.tau.messages.Messages;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;

 /**
  * Manages uploading TAU profile data to the TAUPortal online performance data storage system
  * @author wspear
  *
  */
 public class TAUPortalUploadDialog extends Dialog {

 	private static final int RESET_ID = IDialogConstants.NO_TO_ALL_ID + 1;

 	private Text urlField;

 	  private Text usernameField;

 	  private Text passwordField;

 	  private Label portalStatus;

 	  private Combo workspaceCombo;

 	  private String url=""; //$NON-NLS-1$
 	  private String uname=""; //$NON-NLS-1$
 	  private String pwd=""; //$NON-NLS-1$
 	  private File ppk=null;

 	  public TAUPortalUploadDialog(Shell parentShell, File ppk) {
 	    super(parentShell);
 	    this.ppk=ppk;
 	  }

 	  /**
 	   * Creates the primary interface for the upload dialog
 	   */
 	  protected Control createDialogArea(Composite parent) {

 	    Composite comp = (Composite) super.createDialogArea(parent);

 	    GridLayout layout = (GridLayout) comp.getLayout();
 	    layout.numColumns = 2;

 	    Label pwdLabel=new Label(comp,SWT.RIGHT);
 	    pwdLabel.setText(Messages.TAUPortalUploadDialog_TauPortURL);

 	    urlField=new Text(comp,SWT.SINGLE|SWT.BORDER);
 	    GridData data = new GridData(GridData.FILL_HORIZONTAL);
 	    urlField.setLayoutData(data);
 	    urlField.setText("https://tau.nic.uoregon.edu"); //$NON-NLS-1$

 	    Label usernameLabel = new Label(comp, SWT.RIGHT);
 	    usernameLabel.setText(Messages.TAUPortalUploadDialog_TauPortUname);

 	    usernameField = new Text(comp, SWT.SINGLE | SWT.BORDER);
 	    data = new GridData(GridData.FILL_HORIZONTAL);
 	    usernameField.setLayoutData(data);


 	    Label passwordLabel = new Label(comp, SWT.RIGHT);
 	    passwordLabel.setText(Messages.TAUPortalUploadDialog_TauPortPwd);

 	    passwordField = new Text(comp, SWT.SINGLE | SWT.PASSWORD | SWT.BORDER);
 	    data = new GridData(GridData.FILL_HORIZONTAL);
 	    passwordField.setLayoutData(data);


 	    SelectionListener subListen = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				url=urlField.getText();
 				uname=usernameField.getText();
 				pwd=passwordField.getText();
 				if(uname.length()==0||pwd.length()==0)
 				{
 					portalStatus.setText(Messages.TAUPortalUploadDialog_SubmitValidUnamePass);
 					workspaceCombo.clearSelection();
 				    workspaceCombo.setEnabled(false);
 					return;
 				}

 				String workspaces = getWorkspaces(url,uname,pwd);

 				if(workspaces.equals("NO_VALID_WORKSPACES")) //$NON-NLS-1$
 				{
 					portalStatus.setText(Messages.TAUPortalUploadDialog_LoginError);
 					workspaceCombo.clearSelection();
 				    workspaceCombo.setEnabled(false);
 					return;
 				}

 				if(workspaces.indexOf(',')==-1)//
 				{
 					portalStatus.setText(workspaces);
 					workspaceCombo.clearSelection();
 				    workspaceCombo.setEnabled(false);
 					return;
 				}

 				workspaces=workspaces.trim();

 				StringTokenizer tz = new StringTokenizer(workspaces, ",", false); //$NON-NLS-1$

 				String wSArray[] = new String[tz.countTokens()];
 				int i=0;
 				while(tz.hasMoreTokens()){
 					wSArray[i++]=tz.nextToken().trim();
 				}
 				workspaceCombo.setItems(wSArray);
 				workspaceCombo.setEnabled(true);
 				workspaceCombo.select(0);
 				portalStatus.setText(Messages.TAUPortalUploadDialog_SelectWorkspace);
 			}
 		};


 	    Button login = new Button(comp, SWT.PUSH|SWT.CENTER);
 	    login.setText(Messages.TAUPortalUploadDialog_SubmitLogin);
 	    login.addSelectionListener(subListen);

 	    portalStatus=new Label(comp,SWT.LEFT);
 	    portalStatus.setText(Messages.TAUPortalUploadDialog_SubmitValidEtcSpace);

 	    Label workspaceLabel = new Label(comp, SWT.RIGHT);
 	    workspaceLabel.setText(Messages.TAUPortalUploadDialog_SelectWorkspaceTab);

 	    workspaceCombo = new Combo(comp, SWT.READ_ONLY);
 	    data = new GridData(GridData.FILL_HORIZONTAL);
 	    workspaceCombo.setLayoutData(data);
 	    workspaceCombo.setEnabled(false);

 	    return comp;
 	  }

 	  protected void createButtonsForButtonBar(Composite parent) {
 	    super.createButtonsForButtonBar(parent);
 	    createButton(parent, RESET_ID, Messages.TAUPortalUploadDialog_ResetAll, false);
 	  }

 	  protected void buttonPressed(int buttonId) {
 	    if (buttonId == RESET_ID) {
 	      usernameField.setText(""); //$NON-NLS-1$
 	      passwordField.setText(""); //$NON-NLS-1$
 	    } else {
 	    	if(buttonId==Window.OK){
 	    		if(!workspaceCombo.getEnabled()){
 	    			portalStatus.setText(Messages.TAUPortalUploadDialog_ErrorNoWorkspace);
 	    			return;
 	    		}
 	    		if(workspaceCombo.getSelectionIndex()==-1)
 	    		{
 	    			portalStatus.setText(Messages.TAUPortalUploadDialog_ErrorNoWorkspace);
 	    			return;
 	    		}

 	    		try {
 					String success = uploadPPK(url,uname, pwd, workspaceCombo.getItem(workspaceCombo.getSelectionIndex()), ppk);
 					if(success.indexOf(Messages.TAUPortalUploadDialog_Error)>=0)
 					{
 						portalStatus.setText(success);
 						return;
 					}
 				} catch (Exception e) {
 					e.printStackTrace();
 					portalStatus.setText(Messages.TAUPortalUploadDialog_UploadError);
 					return;
 				}
 	    	}
 	    	super.buttonPressed(buttonId);
 	    }
 	  }


 	/**
 	 * Converts the login and profile data for remote trasfer
 	 * @param data
 	 * @return
 	 */
     private static String convertToHex(byte[] data) {
         StringBuffer buf = new StringBuffer();
         for (int i = 0; i < data.length; i++) {
             int halfbyte = (data[i] >>> 4) & 0x0F;
             int two_halfs = 0;
             do {
                 if ((0 <= halfbyte) && (halfbyte <= 9))
                 buf.append((char) ('0' + halfbyte));
                 else
                 buf.append((char) ('a' + (halfbyte - 10)));
                 halfbyte = data[i] & 0x0F;
             } while(two_halfs++ < 1);
         }
         return buf.toString();
     }

     /**
      * Handhes hash conversion for security
      * @param text
      * @return
      * @throws NoSuchAlgorithmException
      * @throws UnsupportedEncodingException
      */
     private static String SHA1(String text)
     throws NoSuchAlgorithmException, UnsupportedEncodingException  {
         MessageDigest md;
         md = MessageDigest.getInstance("SHA-1"); //$NON-NLS-1$
         byte[] sha1hash = new byte[40];
         md.update(text.getBytes("iso-8859-1"), 0, text.length()); //$NON-NLS-1$
         sha1hash = md.digest();
         return convertToHex(sha1hash);
     }

     /**
      * Bypass certificate checking
      * @throws Exception
      */
     static private void trustHttpsCertificates() throws Exception {

     	Class<?> sslProvider=null;
     	boolean goodProvider=true;
     	try{
     	sslProvider=Class.forName("com.sun.net.ssl.internal.ssl.Provider"); //$NON-NLS-1$
     	}catch(ClassNotFoundException e){goodProvider=false;}

     	if(!goodProvider)
     	{
     		sslProvider=Class.forName("com.ibm.jsse.IBMJSSEProvider"); //$NON-NLS-1$
     	}

         Security.addProvider((Provider)sslProvider.newInstance());//new com.ibm.jsse.IBMJSSEProvider());//com.sun.net.ssl.internal.ssl.Provider());
         //Create a trust manager that does not validate certificate chains:
         TrustManager[] trustAllCerts = new TrustManager[] {
             new X509TrustManager() {
                 public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                     return null;
                 }

 				public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {
 				}
 				public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {
 				}
             }
         };

         //Install the all-trusting trust manager:
         SSLContext sc = SSLContext.getInstance("SSL"); //$NON-NLS-1$
       sc.init(null, trustAllCerts, new SecureRandom());
        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

        //avoid "HTTPS hostname wrong: should be <myhostname>" exception:
        HostnameVerifier hv = new HostnameVerifier() {
            public boolean verify(String urlHostName, SSLSession session) {
                if (!urlHostName.equalsIgnoreCase(session.getPeerHost())) {
                    System.out.println(Messages.TAUPortalUploadDialog_WarningURLHost+urlHostName+Messages.TAUPortalUploadDialog_IsDifferent+session.getPeerHost()+"'."); //$NON-NLS-3$
                }
                return true; //also accept different hostname (e.g. domain name instead of IP address)
            }
        };
        HttpsURLConnection.setDefaultHostnameVerifier(hv);
     }

     /**
      * Obtain the names of the users available workspaces
      * @param uname Username
      * @param pwd Password
      * @return
      */
     private static String getWorkspaces(String url,String uname, String pwd)
     {
     	String pwd2;
 		try {
 			pwd2 = SHA1(pwd);


 		String portalURL=url+"/trial/list_workspaces"; //$NON-NLS-1$
 		String data = URLEncoder.encode("username","UTF-8")+"="+URLEncoder.encode(uname,"UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 		data += "&"+URLEncoder.encode("password", "UTF-8")+"="+URLEncoder.encode(pwd2, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

 		String workspaces = portalAccess(portalURL,data);

 		return workspaces;

 		} catch (NoSuchAlgorithmException e) {
 			e.printStackTrace();
 		} catch (UnsupportedEncodingException e) {
 			e.printStackTrace();
 		} catch (Exception e) {
 			e.printStackTrace();
 		}

 		return "NO_VALID_WORKSPACES"; //$NON-NLS-1$
 	}

     /**
      * Uploads ppkFile to the specified workspace of the asccount associated with the given username and password
      * @param usr Username
      * @param pwd Password
      * @param workspace Selected workspace
      * @param ppkFile Packed profile file
      * @return
      * @throws Exception
      */
 	private static String uploadPPK(String url, String usr, String pwd, String workspace, File ppkFile) throws Exception {

 		String pwd2 = SHA1(pwd);

 		String portalURL=url+"/trial/batch_upload"; //$NON-NLS-1$
 		String ppkName = ppkFile.getName();
 		ppkName=ppkName.substring(0, ppkName.lastIndexOf('.'));

 		RandomAccessFile rfile = new RandomAccessFile(ppkFile, "r"); //$NON-NLS-1$

 		byte barr[]=new byte[(int)rfile.length()];
 		rfile.read(barr);
 		String ppkString=new String(barr,"ISO-8859-1"); //$NON-NLS-1$
 		ppkString=URLEncoder.encode(ppkString,"ISO-8859-1"); //$NON-NLS-1$


 		String data = URLEncoder.encode("username","UTF-8")+"="+URLEncoder.encode(usr,"UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 		data += "&"+URLEncoder.encode("password", "UTF-8")+"="+URLEncoder.encode(pwd2, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
 		data += "&"+URLEncoder.encode(ppkName, "UTF-8")+"="+ppkString; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
 		data += "&"+URLEncoder.encode("workspace", "UTF-8")+"="+URLEncoder.encode(workspace, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

 		return portalAccess(portalURL,data);

 	}

 	/**
 	 * Uploads data to the given URL
 	 * @param portalURL The web address of the portal
 	 * @param data The string-representation of the data being sent
 	 * @return The portal's response
 	 * @throws Exception
 	 */
 	private static String portalAccess(String portalURL, String data) throws Exception{
 		URL url = new URL(portalURL);

 		trustHttpsCertificates();

 		URLConnection conn = url.openConnection();

 	    ((javax.net.ssl.HttpsURLConnection) conn).setHostnameVerifier(new javax.net.ssl.HostnameVerifier() {
 	    	public boolean verify(String hostname, javax.net.ssl.SSLSession session) {
 	     	return true;
 	     	}
 	     });

 		conn.setDoOutput(true);
 		OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());

 		wr.write(data);
 		wr.flush();
 		String line=""; //$NON-NLS-1$
 		BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
 		String result = ""; //$NON-NLS-1$
 		while ((line = rd.readLine()) != null) {
 			result+=line;
 		}
 		wr.close();
 		return result;
 	}

 }
	/****************************************************************************
	* Tuning and Analysis Utilities
	* http://www.cs.uoregon.edu/research/paracomp/tau
	****************************************************************************
	* Copyright (c) 1997-2006
	* Department of Computer and Information Science, University of Oregon
	* Advanced Computing Laboratory, Los Alamos National Laboratory
	* Research Center Juelich, ZAM Germany
	*
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Wyatt Spear - initial API and implementation
	****************************************************************************/
	package org.eclipse.ptp.etfw.tau;

	import java.io.BufferedReader;
	import java.io.File;
	import java.io.InputStreamReader;
	import java.io.OutputStreamWriter;
	import java.io.RandomAccessFile;
	import java.io.UnsupportedEncodingException;
	import java.net.URL;
	import java.net.URLConnection;
	import java.net.URLEncoder;
	import java.security.MessageDigest;
	import java.security.NoSuchAlgorithmException;
	import java.security.Provider;
	import java.security.SecureRandom;
	import java.security.Security;
	import java.util.StringTokenizer;

	import javax.net.ssl.HostnameVerifier;
	import javax.net.ssl.HttpsURLConnection;
	import javax.net.ssl.SSLContext;
	import javax.net.ssl.SSLSession;
	import javax.net.ssl.TrustManager;
	import javax.net.ssl.X509TrustManager;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.window.Window;
	import org.eclipse.ptp.etfw.tau.messages.Messages;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;

	/**
	* Manages uploading TAU profile data to the TAUPortal online performance data storage system
	* @author wspear
	*
	*/
	public class TAUPortalUploadDialog extends Dialog {

	private static final int RESET_ID = IDialogConstants.NO_TO_ALL_ID + 1;

	private Text urlField;

	private Text usernameField;

	private Text passwordField;

	private Label portalStatus;

	private Combo workspaceCombo;

	private String url=""; //$NON-NLS-1$
	private String uname=""; //$NON-NLS-1$
	private String pwd=""; //$NON-NLS-1$
	private File ppk=null;

	public TAUPortalUploadDialog(Shell parentShell, File ppk) {
	super(parentShell);
	this.ppk=ppk;
	}

	/**
	* Creates the primary interface for the upload dialog
	*/
	protected Control createDialogArea(Composite parent) {

	Composite comp = (Composite) super.createDialogArea(parent);

	GridLayout layout = (GridLayout) comp.getLayout();
	layout.numColumns = 2;

	Label pwdLabel=new Label(comp,SWT.RIGHT);
	pwdLabel.setText(Messages.TAUPortalUploadDialog_TauPortURL);

	urlField=new Text(comp,SWT.SINGLE\|SWT.BORDER);
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	urlField.setLayoutData(data);
	urlField.setText("https://tau.nic.uoregon.edu"); //$NON-NLS-1$

	Label usernameLabel = new Label(comp, SWT.RIGHT);
	usernameLabel.setText(Messages.TAUPortalUploadDialog_TauPortUname);

	usernameField = new Text(comp, SWT.SINGLE \| SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	usernameField.setLayoutData(data);


	Label passwordLabel = new Label(comp, SWT.RIGHT);
	passwordLabel.setText(Messages.TAUPortalUploadDialog_TauPortPwd);

	passwordField = new Text(comp, SWT.SINGLE \| SWT.PASSWORD \| SWT.BORDER);
	data = new GridData(GridData.FILL_HORIZONTAL);
	passwordField.setLayoutData(data);


	SelectionListener subListen = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	url=urlField.getText();
	uname=usernameField.getText();
	pwd=passwordField.getText();
	if(uname.length()==0\|\|pwd.length()==0)
	{
	portalStatus.setText(Messages.TAUPortalUploadDialog_SubmitValidUnamePass);
	workspaceCombo.clearSelection();
	workspaceCombo.setEnabled(false);
	return;
	}

	String workspaces = getWorkspaces(url,uname,pwd);

	if(workspaces.equals("NO_VALID_WORKSPACES")) //$NON-NLS-1$
	{
	portalStatus.setText(Messages.TAUPortalUploadDialog_LoginError);
	workspaceCombo.clearSelection();
	workspaceCombo.setEnabled(false);
	return;
	}

	if(workspaces.indexOf(',')==-1)//
	{
	portalStatus.setText(workspaces);
	workspaceCombo.clearSelection();
	workspaceCombo.setEnabled(false);
	return;
	}

	workspaces=workspaces.trim();

	StringTokenizer tz = new StringTokenizer(workspaces, ",", false); //$NON-NLS-1$

	String wSArray[] = new String[tz.countTokens()];
	int i=0;
	while(tz.hasMoreTokens()){
	wSArray[i++]=tz.nextToken().trim();
	}
	workspaceCombo.setItems(wSArray);
	workspaceCombo.setEnabled(true);
	workspaceCombo.select(0);
	portalStatus.setText(Messages.TAUPortalUploadDialog_SelectWorkspace);
	}
	};


	Button login = new Button(comp, SWT.PUSH\|SWT.CENTER);
	login.setText(Messages.TAUPortalUploadDialog_SubmitLogin);
	login.addSelectionListener(subListen);

	portalStatus=new Label(comp,SWT.LEFT);
	portalStatus.setText(Messages.TAUPortalUploadDialog_SubmitValidEtcSpace);

	Label workspaceLabel = new Label(comp, SWT.RIGHT);
	workspaceLabel.setText(Messages.TAUPortalUploadDialog_SelectWorkspaceTab);

	workspaceCombo = new Combo(comp, SWT.READ_ONLY);
	data = new GridData(GridData.FILL_HORIZONTAL);
	workspaceCombo.setLayoutData(data);
	workspaceCombo.setEnabled(false);

	return comp;
	}

	protected void createButtonsForButtonBar(Composite parent) {
	super.createButtonsForButtonBar(parent);
	createButton(parent, RESET_ID, Messages.TAUPortalUploadDialog_ResetAll, false);
	}

	protected void buttonPressed(int buttonId) {
	if (buttonId == RESET_ID) {
	usernameField.setText(""); //$NON-NLS-1$
	passwordField.setText(""); //$NON-NLS-1$
	} else {
	if(buttonId==Window.OK){
	if(!workspaceCombo.getEnabled()){
	portalStatus.setText(Messages.TAUPortalUploadDialog_ErrorNoWorkspace);
	return;
	}
	if(workspaceCombo.getSelectionIndex()==-1)
	{
	portalStatus.setText(Messages.TAUPortalUploadDialog_ErrorNoWorkspace);
	return;
	}

	try {
	String success = uploadPPK(url,uname, pwd, workspaceCombo.getItem(workspaceCombo.getSelectionIndex()), ppk);
	if(success.indexOf(Messages.TAUPortalUploadDialog_Error)>=0)
	{
	portalStatus.setText(success);
	return;
	}
	} catch (Exception e) {
	e.printStackTrace();
	portalStatus.setText(Messages.TAUPortalUploadDialog_UploadError);
	return;
	}
	}
	super.buttonPressed(buttonId);
	}
	}


	/**
	* Converts the login and profile data for remote trasfer
	* @param data
	* @return
	*/
	private static String convertToHex(byte[] data) {
	StringBuffer buf = new StringBuffer();
	for (int i = 0; i < data.length; i++) {
	int halfbyte = (data[i] >>> 4) & 0x0F;
	int two_halfs = 0;
	do {
	if ((0 <= halfbyte) && (halfbyte <= 9))
	buf.append((char) ('0' + halfbyte));
	else
	buf.append((char) ('a' + (halfbyte - 10)));
	halfbyte = data[i] & 0x0F;
	} while(two_halfs++ < 1);
	}
	return buf.toString();
	}

	/**
	* Handhes hash conversion for security
	* @param text
	* @return
	* @throws NoSuchAlgorithmException
	* @throws UnsupportedEncodingException
	*/
	private static String SHA1(String text)
	throws NoSuchAlgorithmException, UnsupportedEncodingException {
	MessageDigest md;
	md = MessageDigest.getInstance("SHA-1"); //$NON-NLS-1$
	byte[] sha1hash = new byte[40];
	md.update(text.getBytes("iso-8859-1"), 0, text.length()); //$NON-NLS-1$
	sha1hash = md.digest();
	return convertToHex(sha1hash);
	}

	/**
	* Bypass certificate checking
	* @throws Exception
	*/
	static private void trustHttpsCertificates() throws Exception {

	Class<?> sslProvider=null;
	boolean goodProvider=true;
	try{
	sslProvider=Class.forName("com.sun.net.ssl.internal.ssl.Provider"); //$NON-NLS-1$
	}catch(ClassNotFoundException e){goodProvider=false;}

	if(!goodProvider)
	{
	sslProvider=Class.forName("com.ibm.jsse.IBMJSSEProvider"); //$NON-NLS-1$
	}

	Security.addProvider((Provider)sslProvider.newInstance());//new com.ibm.jsse.IBMJSSEProvider());//com.sun.net.ssl.internal.ssl.Provider());
	//Create a trust manager that does not validate certificate chains:
	TrustManager[] trustAllCerts = new TrustManager[] {
	new X509TrustManager() {
	public java.security.cert.X509Certificate[] getAcceptedIssuers() {
	return null;
	}

	public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {
	}
	public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {
	}
	}
	};

	//Install the all-trusting trust manager:
	SSLContext sc = SSLContext.getInstance("SSL"); //$NON-NLS-1$
	sc.init(null, trustAllCerts, new SecureRandom());
	HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

	//avoid "HTTPS hostname wrong: should be <myhostname>" exception:
	HostnameVerifier hv = new HostnameVerifier() {
	public boolean verify(String urlHostName, SSLSession session) {
	if (!urlHostName.equalsIgnoreCase(session.getPeerHost())) {
	System.out.println(Messages.TAUPortalUploadDialog_WarningURLHost+urlHostName+Messages.TAUPortalUploadDialog_IsDifferent+session.getPeerHost()+"'."); //$NON-NLS-3$
	}
	return true; //also accept different hostname (e.g. domain name instead of IP address)
	}
	};
	HttpsURLConnection.setDefaultHostnameVerifier(hv);
	}

	/**
	* Obtain the names of the users available workspaces
	* @param uname Username
	* @param pwd Password
	* @return
	*/
	private static String getWorkspaces(String url,String uname, String pwd)
	{
	String pwd2;
	try {
	pwd2 = SHA1(pwd);


	String portalURL=url+"/trial/list_workspaces"; //$NON-NLS-1$
	String data = URLEncoder.encode("username","UTF-8")+"="+URLEncoder.encode(uname,"UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	data += "&"+URLEncoder.encode("password", "UTF-8")+"="+URLEncoder.encode(pwd2, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	String workspaces = portalAccess(portalURL,data);

	return workspaces;

	} catch (NoSuchAlgorithmException e) {
	e.printStackTrace();
	} catch (UnsupportedEncodingException e) {
	e.printStackTrace();
	} catch (Exception e) {
	e.printStackTrace();
	}

	return "NO_VALID_WORKSPACES"; //$NON-NLS-1$
	}

	/**
	* Uploads ppkFile to the specified workspace of the asccount associated with the given username and password
	* @param usr Username
	* @param pwd Password
	* @param workspace Selected workspace
	* @param ppkFile Packed profile file
	* @return
	* @throws Exception
	*/
	private static String uploadPPK(String url, String usr, String pwd, String workspace, File ppkFile) throws Exception {

	String pwd2 = SHA1(pwd);

	String portalURL=url+"/trial/batch_upload"; //$NON-NLS-1$
	String ppkName = ppkFile.getName();
	ppkName=ppkName.substring(0, ppkName.lastIndexOf('.'));

	RandomAccessFile rfile = new RandomAccessFile(ppkFile, "r"); //$NON-NLS-1$

	byte barr[]=new byte[(int)rfile.length()];
	rfile.read(barr);
	String ppkString=new String(barr,"ISO-8859-1"); //$NON-NLS-1$
	ppkString=URLEncoder.encode(ppkString,"ISO-8859-1"); //$NON-NLS-1$


	String data = URLEncoder.encode("username","UTF-8")+"="+URLEncoder.encode(usr,"UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	data += "&"+URLEncoder.encode("password", "UTF-8")+"="+URLEncoder.encode(pwd2, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$
	data += "&"+URLEncoder.encode(ppkName, "UTF-8")+"="+ppkString; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	data += "&"+URLEncoder.encode("workspace", "UTF-8")+"="+URLEncoder.encode(workspace, "UTF-8"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$

	return portalAccess(portalURL,data);

	}

	/**
	* Uploads data to the given URL
	* @param portalURL The web address of the portal
	* @param data The string-representation of the data being sent
	* @return The portal's response
	* @throws Exception
	*/
	private static String portalAccess(String portalURL, String data) throws Exception{
	URL url = new URL(portalURL);

	trustHttpsCertificates();

	URLConnection conn = url.openConnection();

	((javax.net.ssl.HttpsURLConnection) conn).setHostnameVerifier(new javax.net.ssl.HostnameVerifier() {
	public boolean verify(String hostname, javax.net.ssl.SSLSession session) {
	return true;
	}
	});

	conn.setDoOutput(true);
	OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());

	wr.write(data);
	wr.flush();
	String line=""; //$NON-NLS-1$
	BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
	String result = ""; //$NON-NLS-1$
	while ((line = rd.readLine()) != null) {
	result+=line;
	}
	wr.close();
	return result;
	}

	}