taverna-wsdl-activity-ui/src/main/java/net/sf/taverna/t2/activities/wsdl/servicedescriptions/AddWSDLServiceDialog.java - incubator-taverna-workbench-common-activities - Git at Google

 /*******************************************************************************
  * Copyright (C) 2007 The University of Manchester
  *
  *  Modifications to the initial code base are copyright of their
  *  respective authors, or their employers as appropriate.
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public License
  *  as published by the Free Software Foundation; either version 2.1 of
  *  the License, or (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful, but
  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this program; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  ******************************************************************************/
 package net.sf.taverna.t2.activities.wsdl.servicedescriptions;

 import java.awt.BorderLayout;
 import java.awt.FlowLayout;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
 import java.awt.Insets;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.KeyEvent;
 import java.io.IOException;
 import java.net.URL;
 import java.net.URLConnection;

 import javax.swing.JButton;
 import javax.swing.JLabel;
 import javax.swing.JOptionPane;
 import javax.swing.JPanel;
 import javax.swing.JTextField;
 import javax.swing.border.EmptyBorder;

 import net.sf.taverna.t2.workbench.MainWindow;
 import net.sf.taverna.t2.workbench.helper.HelpEnabledDialog;

 import org.apache.log4j.Logger;

 /**
  * Dialog that lets user specify a URL of a WSDL service they want
  * to add to the Service Panel. In the case the WSDL URL is behind
  * HTTPS or service's endpoints require HTTPS it will ask user to confirm
  * if they want to trust it.
  *
  * @author Alex Nenadic
  *
  */
 @SuppressWarnings("serial")
 public abstract class AddWSDLServiceDialog extends HelpEnabledDialog {

 	private JTextField wsdlLocationField;
 	private Logger logger = Logger.getLogger(AddWSDLServiceDialog.class);

 	public AddWSDLServiceDialog()  {
 		super(MainWindow.getMainWindow(), "Add WSDL service", true, null); // create a non-modal dialog
 		initComponents();
 		setLocationRelativeTo(getParent());
 	}

 	private void initComponents() {
 		JPanel mainPanel = new JPanel(new GridBagLayout());
 		mainPanel.setBorder(new EmptyBorder(10,10,10,10));

 		JLabel wsdlLocatitionLabel = new JLabel("WSDL location",WSDLActivityIcon.getWSDLIcon(), JLabel.LEFT);
 		GridBagConstraints gbc = new GridBagConstraints();
 		gbc.weighty = 0.0;

 		gbc.weightx = 0.0;
 		gbc.gridx = 0;
 		gbc.gridy = 0;
 		gbc.fill = GridBagConstraints.NONE;
 		gbc.anchor = GridBagConstraints.WEST;
 		gbc.insets = new Insets(5, 10, 0, 0);
 		mainPanel.add(wsdlLocatitionLabel, gbc);

 		wsdlLocationField = new JTextField("http://somehost/service?wsdl");
 		gbc.weightx = 1.0;
 		gbc.gridx = 1;
 		gbc.gridy = 0;
 		gbc.fill = GridBagConstraints.HORIZONTAL;
 		gbc.anchor = GridBagConstraints.WEST;
 		gbc.insets = new Insets(5, 10, 0, 5);
 		mainPanel.add(wsdlLocationField, gbc);

 	    final JButton addServiceButton = new JButton("Add");
 	    addServiceButton.addActionListener(new ActionListener()
 	        {
 	            public void actionPerformed(ActionEvent evt)
 	            {
 	                addPressed();
 	            }
 	        });

 	    // When user presses "Return" key fire the action on the "Add" button
 	    addServiceButton.addKeyListener(new java.awt.event.KeyAdapter() {
 			public void keyPressed(java.awt.event.KeyEvent evt) {
 				if (evt.getKeyCode() == KeyEvent.VK_ENTER) {
 					addPressed();
 				}
 			}
 		});
 		getRootPane().setDefaultButton(addServiceButton);

         JPanel buttonsPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
         buttonsPanel.add(addServiceButton);

         getContentPane().setLayout(new BorderLayout());
         getContentPane().add(mainPanel, BorderLayout.CENTER);
         getContentPane().add(buttonsPanel, BorderLayout.SOUTH);

 		setSize(getPreferredSize());
         pack();
 	}

     /**
      * 'Add service' button pressed or otherwise activated.
      */
     private void addPressed()
     {
 		final String wsdlURLString = wsdlLocationField.getText().trim();
 		new Thread("Adding WSDL " + wsdlURLString) {
 			public void run() {
 				// Only add the service provider for this service if service URL
 				// starts with 'http'
 				// or if it starts with 'https' and user explicitly said they
 				// wanted to trust this service.
 				/*
 				 * if (shouldTrust(wsdlURLString)){ addRegistry(wsdlURLString);
 				 * }
 				 */
 				try {
 					URL url = new URL(wsdlURLString);
 					URLConnection connection = url.openConnection();
 					try {
 						// If the url starts with 'https' - security hook for
 						// https connection's trust manager
 						// will be engaged and user will be asked automatically
 						// if they want
 						// to trust the connection (if it is not already
 						// trusted). If the urls starts with 'http' -
 						// this will not have any effect apart from checking if
 						// we can open a connection.
 						connection.connect(); // if this does not fail - add the
 						// WSDL
 						// service provider for this service to
 						// the registry
 					} finally {
 						try {
 							connection.getInputStream().close();
 						} catch (IOException ex) {
 						}
 					}
 					addRegistry(wsdlURLString);
 				} catch (Exception ex) { // anything failed
 					JOptionPane.showMessageDialog(null,
 							"Could not read the WSDL definition from "
 									+ wsdlURLString + ":\n" + ex,
 							"Could not add WSDL service",
 							JOptionPane.ERROR_MESSAGE);

 					logger.error(
 							"Failed to add WSDL service provider for service: "
 									+ wsdlURLString, ex);

 				}
 			};
 		}.start();
 		closeDialog();
     }

     /**
      * If WSDL service's URL starts with 'https' - asks user
      * whether to trust it or not. If it starts with 'http' -
      * does not ask anything as the service is implicitly trusted (weird but true).
      */
 	protected abstract void addRegistry(String wsdl);

 	/**
 	 * Checks if a service is trusted and if not - asks user if they want to trust it.
 	 */
 //	public boolean shouldTrust(String wsdlURLString){
 //		try {
 //			URI wsdlURI = new URI(wsdlURLString);
 //			URL wsdlURL = wsdlURI.toURL();
 //			String protocol = wsdlURL.getProtocol();
 //			if (protocol.toLowerCase().startsWith("https")){
 //				logger.info("Checking if service " + wsdlURLString + " is already trusted.");
 //				// Check if opening an HTTPS connection will cause a SSLHandshakeException.
 //				// This is most probably due to the fact that we do not have this service's
 //				// certificate in Credential Manager's truststore
 //				try {
 //					HttpsURLConnection httpsConnection;
 //					httpsConnection = (HttpsURLConnection) wsdlURL.openConnection();
 //					httpsConnection.connect();
 //					logger.info("HTTPS works out of the box for service " + wsdlURLString);
 //					return true; // Opening HTTPS connection worked - so we trust this service already
 //				}
 //				catch (SSLException sslex) { // most probably due to the fact that service is not trusted, i.e. its certificate is not in Credential Manager's Truststore
 //					logger.info("Service " + wsdlURLString + " is not trusted out of the box. Trying to fetch its certificate.");
 //					logger.info("The SSLException was caused by: " + sslex.getCause());
 //						// Handshake most probably failed as we do not already trust this service -
 //						// fetch its certificate and ask user if they want to add this service as trusted
 //					try {
 //
 //						// This controls SSL socket creation for HTTPS connections
 //						// per thread so the damage of switching off certificates
 //						// verification is limited
 //						ThreadLocalSSLSocketFactory.install();
 //						// switch certificate checking off for a moment so we can fetch
 //						// service's certificate
 //						ThreadLocalSSLSocketFactory.startTrustingEverything();
 //
 //						HttpsURLConnection httpsConnection;
 //						httpsConnection = (HttpsURLConnection) wsdlURL
 //								.openConnection();
 //						httpsConnection.connect();
 //						// Stop being overly trusting
 //						ThreadLocalSSLSocketFactory.stopTrustingEverything();
 //						Certificate[] certificates = httpsConnection
 //								.getServerCertificates();
 //						logger.info("Need to ask user if they want to trust service " + wsdlURLString);
 //						// Ask user if they want to trust this service
 //						ConfirmTrustedCertificateDialog confirmCertTrustDialog = new ConfirmTrustedCertificateDialog(
 //								this, "Untrusted HTTPS connection", true,
 //								(X509Certificate) certificates[0]);
 //						confirmCertTrustDialog.setLocationRelativeTo(null);
 //						confirmCertTrustDialog.setVisible(true);
 //						boolean shouldTrust = confirmCertTrustDialog
 //								.shouldTrust();
 //						if (shouldTrust) {
 //							try {
 //								CredentialManager credManager = CredentialManager
 //										.getInstance();
 //								credManager
 //										.saveTrustedCertificate((X509Certificate) certificates[0]);
 //								return true;
 //							} catch (CMException cme) {
 //								logger
 //										.error(
 //												"Failed to add WSDL service provider for service: "
 //														+ wsdlURLString
 //														+ " . Credential Manager failed to "
 //														+ "save trusted certificate.",
 //												cme);
 //								return false;
 //							}
 //						} else {
 //							// Do not even add a WSDL service provider for this
 //							// service and tell user the service will not be
 //							// added to Service Panel
 //							JOptionPane
 //									.showMessageDialog(
 //											this,
 //											"As you refused to trust it, the service will not be added to Service Panel.",
 //											"Add WSDL service",
 //											JOptionPane.INFORMATION_MESSAGE);
 //							return false;
 //						}
 //					} catch (Exception e1) {
 //						logger
 //								.error(
 //										"Failed to add WSDL service provider for service: "
 //												+ wsdlURLString
 //												+ ". 'Trust everyone' HTTPS connection failed.",
 //										e1);
 //						return false;
 //					} finally {// switch it off here as well if some unexpected exception occurred
 //						ThreadLocalSSLSocketFactory.stopTrustingEverything();
 //					}
 //
 //				} catch (Exception e2) {
 //					logger.error("Failed to add WSDL service provider for service: "+ wsdlURLString+". Connecting to service failed.", e2);
 //					return false;
 //				}
 //			}
 //			else{ // protocol starts with 'http'
 //				return true;
 //			}
 //		} catch (MalformedURLException e3) {
 //			logger.error("Failed to add WSDL service provider: URL "+ wsdlURLString+" was malformed.", e3);
 //			return false;
 //		} catch (URISyntaxException e4) {
 //			logger.error("Failed to add WSDL service provider: URI "+ wsdlURLString+" could not be parsed.", e4);
 //			return false;
 //		}
 //	}

 	/**
 	 * Closes the dialog.
 	 */
 	private void closeDialog() {
 		setVisible(false);
 		dispose();
 	}
 }
	/*******************************************************************************
	* Copyright (C) 2007 The University of Manchester
	*
	* Modifications to the initial code base are copyright of their
	* respective authors, or their employers as appropriate.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public License
	* as published by the Free Software Foundation; either version 2.1 of
	* the License, or (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	******************************************************************************/
	package net.sf.taverna.t2.activities.wsdl.servicedescriptions;

	import java.awt.BorderLayout;
	import java.awt.FlowLayout;
	import java.awt.GridBagConstraints;
	import java.awt.GridBagLayout;
	import java.awt.Insets;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;
	import java.awt.event.KeyEvent;
	import java.io.IOException;
	import java.net.URL;
	import java.net.URLConnection;

	import javax.swing.JButton;
	import javax.swing.JLabel;
	import javax.swing.JOptionPane;
	import javax.swing.JPanel;
	import javax.swing.JTextField;
	import javax.swing.border.EmptyBorder;

	import net.sf.taverna.t2.workbench.MainWindow;
	import net.sf.taverna.t2.workbench.helper.HelpEnabledDialog;

	import org.apache.log4j.Logger;

	/**
	* Dialog that lets user specify a URL of a WSDL service they want
	* to add to the Service Panel. In the case the WSDL URL is behind
	* HTTPS or service's endpoints require HTTPS it will ask user to confirm
	* if they want to trust it.
	*
	* @author Alex Nenadic
	*
	*/
	@SuppressWarnings("serial")
	public abstract class AddWSDLServiceDialog extends HelpEnabledDialog {

	private JTextField wsdlLocationField;
	private Logger logger = Logger.getLogger(AddWSDLServiceDialog.class);

	public AddWSDLServiceDialog() {
	super(MainWindow.getMainWindow(), "Add WSDL service", true, null); // create a non-modal dialog
	initComponents();
	setLocationRelativeTo(getParent());
	}

	private void initComponents() {
	JPanel mainPanel = new JPanel(new GridBagLayout());
	mainPanel.setBorder(new EmptyBorder(10,10,10,10));

	JLabel wsdlLocatitionLabel = new JLabel("WSDL location",WSDLActivityIcon.getWSDLIcon(), JLabel.LEFT);
	GridBagConstraints gbc = new GridBagConstraints();
	gbc.weighty = 0.0;

	gbc.weightx = 0.0;
	gbc.gridx = 0;
	gbc.gridy = 0;
	gbc.fill = GridBagConstraints.NONE;
	gbc.anchor = GridBagConstraints.WEST;
	gbc.insets = new Insets(5, 10, 0, 0);
	mainPanel.add(wsdlLocatitionLabel, gbc);

	wsdlLocationField = new JTextField("http://somehost/service?wsdl");
	gbc.weightx = 1.0;
	gbc.gridx = 1;
	gbc.gridy = 0;
	gbc.fill = GridBagConstraints.HORIZONTAL;
	gbc.anchor = GridBagConstraints.WEST;
	gbc.insets = new Insets(5, 10, 0, 5);
	mainPanel.add(wsdlLocationField, gbc);

	final JButton addServiceButton = new JButton("Add");
	addServiceButton.addActionListener(new ActionListener()
	{
	public void actionPerformed(ActionEvent evt)
	{
	addPressed();
	}
	});

	// When user presses "Return" key fire the action on the "Add" button
	addServiceButton.addKeyListener(new java.awt.event.KeyAdapter() {
	public void keyPressed(java.awt.event.KeyEvent evt) {
	if (evt.getKeyCode() == KeyEvent.VK_ENTER) {
	addPressed();
	}
	}
	});
	getRootPane().setDefaultButton(addServiceButton);

	JPanel buttonsPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
	buttonsPanel.add(addServiceButton);

	getContentPane().setLayout(new BorderLayout());
	getContentPane().add(mainPanel, BorderLayout.CENTER);
	getContentPane().add(buttonsPanel, BorderLayout.SOUTH);

	setSize(getPreferredSize());
	pack();
	}

	/**
	* 'Add service' button pressed or otherwise activated.
	*/
	private void addPressed()
	{
	final String wsdlURLString = wsdlLocationField.getText().trim();
	new Thread("Adding WSDL " + wsdlURLString) {
	public void run() {
	// Only add the service provider for this service if service URL
	// starts with 'http'
	// or if it starts with 'https' and user explicitly said they
	// wanted to trust this service.
	/*
	* if (shouldTrust(wsdlURLString)){ addRegistry(wsdlURLString);
	* }
	*/
	try {
	URL url = new URL(wsdlURLString);
	URLConnection connection = url.openConnection();
	try {
	// If the url starts with 'https' - security hook for
	// https connection's trust manager
	// will be engaged and user will be asked automatically
	// if they want
	// to trust the connection (if it is not already
	// trusted). If the urls starts with 'http' -
	// this will not have any effect apart from checking if
	// we can open a connection.
	connection.connect(); // if this does not fail - add the
	// WSDL
	// service provider for this service to
	// the registry
	} finally {
	try {
	connection.getInputStream().close();
	} catch (IOException ex) {
	}
	}
	addRegistry(wsdlURLString);
	} catch (Exception ex) { // anything failed
	JOptionPane.showMessageDialog(null,
	"Could not read the WSDL definition from "
	+ wsdlURLString + ":\n" + ex,
	"Could not add WSDL service",
	JOptionPane.ERROR_MESSAGE);

	logger.error(
	"Failed to add WSDL service provider for service: "
	+ wsdlURLString, ex);

	}
	};
	}.start();
	closeDialog();
	}

	/**
	* If WSDL service's URL starts with 'https' - asks user
	* whether to trust it or not. If it starts with 'http' -
	* does not ask anything as the service is implicitly trusted (weird but true).
	*/
	protected abstract void addRegistry(String wsdl);

	/**
	* Checks if a service is trusted and if not - asks user if they want to trust it.
	*/
	// public boolean shouldTrust(String wsdlURLString){
	// try {
	// URI wsdlURI = new URI(wsdlURLString);
	// URL wsdlURL = wsdlURI.toURL();
	// String protocol = wsdlURL.getProtocol();
	// if (protocol.toLowerCase().startsWith("https")){
	// logger.info("Checking if service " + wsdlURLString + " is already trusted.");
	// // Check if opening an HTTPS connection will cause a SSLHandshakeException.
	// // This is most probably due to the fact that we do not have this service's
	// // certificate in Credential Manager's truststore
	// try {
	// HttpsURLConnection httpsConnection;
	// httpsConnection = (HttpsURLConnection) wsdlURL.openConnection();
	// httpsConnection.connect();
	// logger.info("HTTPS works out of the box for service " + wsdlURLString);
	// return true; // Opening HTTPS connection worked - so we trust this service already
	// }
	// catch (SSLException sslex) { // most probably due to the fact that service is not trusted, i.e. its certificate is not in Credential Manager's Truststore
	// logger.info("Service " + wsdlURLString + " is not trusted out of the box. Trying to fetch its certificate.");
	// logger.info("The SSLException was caused by: " + sslex.getCause());
	// // Handshake most probably failed as we do not already trust this service -
	// // fetch its certificate and ask user if they want to add this service as trusted
	// try {
	//
	// // This controls SSL socket creation for HTTPS connections
	// // per thread so the damage of switching off certificates
	// // verification is limited
	// ThreadLocalSSLSocketFactory.install();
	// // switch certificate checking off for a moment so we can fetch
	// // service's certificate
	// ThreadLocalSSLSocketFactory.startTrustingEverything();
	//
	// HttpsURLConnection httpsConnection;
	// httpsConnection = (HttpsURLConnection) wsdlURL
	// .openConnection();
	// httpsConnection.connect();
	// // Stop being overly trusting
	// ThreadLocalSSLSocketFactory.stopTrustingEverything();
	// Certificate[] certificates = httpsConnection
	// .getServerCertificates();
	// logger.info("Need to ask user if they want to trust service " + wsdlURLString);
	// // Ask user if they want to trust this service
	// ConfirmTrustedCertificateDialog confirmCertTrustDialog = new ConfirmTrustedCertificateDialog(
	// this, "Untrusted HTTPS connection", true,
	// (X509Certificate) certificates[0]);
	// confirmCertTrustDialog.setLocationRelativeTo(null);
	// confirmCertTrustDialog.setVisible(true);
	// boolean shouldTrust = confirmCertTrustDialog
	// .shouldTrust();
	// if (shouldTrust) {
	// try {
	// CredentialManager credManager = CredentialManager
	// .getInstance();
	// credManager
	// .saveTrustedCertificate((X509Certificate) certificates[0]);
	// return true;
	// } catch (CMException cme) {
	// logger
	// .error(
	// "Failed to add WSDL service provider for service: "
	// + wsdlURLString
	// + " . Credential Manager failed to "
	// + "save trusted certificate.",
	// cme);
	// return false;
	// }
	// } else {
	// // Do not even add a WSDL service provider for this
	// // service and tell user the service will not be
	// // added to Service Panel
	// JOptionPane
	// .showMessageDialog(
	// this,
	// "As you refused to trust it, the service will not be added to Service Panel.",
	// "Add WSDL service",
	// JOptionPane.INFORMATION_MESSAGE);
	// return false;
	// }
	// } catch (Exception e1) {
	// logger
	// .error(
	// "Failed to add WSDL service provider for service: "
	// + wsdlURLString
	// + ". 'Trust everyone' HTTPS connection failed.",
	// e1);
	// return false;
	// } finally {// switch it off here as well if some unexpected exception occurred
	// ThreadLocalSSLSocketFactory.stopTrustingEverything();
	// }
	//
	// } catch (Exception e2) {
	// logger.error("Failed to add WSDL service provider for service: "+ wsdlURLString+". Connecting to service failed.", e2);
	// return false;
	// }
	// }
	// else{ // protocol starts with 'http'
	// return true;
	// }
	// } catch (MalformedURLException e3) {
	// logger.error("Failed to add WSDL service provider: URL "+ wsdlURLString+" was malformed.", e3);
	// return false;
	// } catch (URISyntaxException e4) {
	// logger.error("Failed to add WSDL service provider: URI "+ wsdlURLString+" could not be parsed.", e4);
	// return false;
	// }
	// }

	/**
	* Closes the dialog.
	*/
	private void closeDialog() {
	setVisible(false);
	dispose();
	}
	}