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/* Copyright (C) 2011 [Gobierno de Espana]
* This file is part of "Cliente @Firma".
* "Cliente @Firma" is free software; you can redistribute it and/or modify it under the terms of:
* - the GNU General Public License as published by the Free Software Foundation;
* either version 2 of the License, or (at your option) any later version.
* - or The European Software License; either version 1.1 or (at your option) any later version.
* You may contact the copyright holder at: [email protected]
*/
package es.gob.afirma.standalone.ui.preferences;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ItemEvent;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.ProxySelector;
import java.net.SocketAddress;
import java.net.URI;
import java.net.URL;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.text.AbstractDocument;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.DocumentFilter;
import com.github.markusbernhardt.proxy.ProxySearch;
import com.github.markusbernhardt.proxy.ProxySearch.Strategy;
import es.gob.afirma.core.ui.AOUIFactory;
import es.gob.afirma.standalone.ProxyUtil;
import es.gob.afirma.standalone.SimpleAfirmaMessages;
/** Panel para el diálogo de configuració de proxy. */
final class ProxyPanel extends JPanel{
private static final long serialVersionUID = -5919574790093890970L;
private static final int PREFERRED_WIDTH = 420;
private static final int PREFERRED_HEIGHT = 210;
static final String URL_CHECK_CONNECTION = "http://www.google.com"; //$NON-NLS-1$
static final Logger LOGGER = Logger.getLogger("es.gob.afirma"); //$NON-NLS-1$
private final JTextField portTF = new JTextField();
/** Obtiene el valor del campo de texto definido para el puerto.
* @return Valor del campo de texto definido para el puerto.*/
String getPort() {
return this.portTF.getText();
}
private final JTextField hostTF = new JTextField();
/** Obtiene el valor del campo de texto definido para el host.
* @return Valor del campo de texto definido para el host.*/
String getHost() {
return this.hostTF.getText();
}
private final JTextField usernameProxy = new JTextField();
String getUsername() {
return this.usernameProxy.getText();
}
private final JPasswordField passwordProxy = new JPasswordField();
char[] getPassword() {
final char[] p = this.passwordProxy.getPassword();
this.passwordProxy.setText(""); //$NON-NLS-1$
return p;
}
private final JCheckBox proxyCheckBox = new JCheckBox(
SimpleAfirmaMessages.getString("ProxyDialog.4") //$NON-NLS-1$
);
boolean isProxySelected() {
return this.proxyCheckBox.isSelected();
}
private final JButton checkConnectionBtn = new JButton(SimpleAfirmaMessages.getString("ProxyDialog.8")); //$NON-NLS-1$
private final JButton autodetectProxyBtn = new JButton(SimpleAfirmaMessages.getString("ProxyDialog.11")); //$NON-NLS-1$
/** Constructor. */
ProxyPanel() {
setLayout(new GridBagLayout());
final GridBagConstraints c = new GridBagConstraints();
c.insets = new Insets(1,1,10,1);
c.fill = GridBagConstraints.HORIZONTAL;
c.weightx = 1.0;
c.gridwidth = 3;
c.gridx = 0;
c.gridy = 0;
setMinimumSize(new Dimension(PREFERRED_WIDTH, PREFERRED_HEIGHT));
getAccessibleContext().setAccessibleDescription(
SimpleAfirmaMessages.getString("ProxyDialog.12") //$NON-NLS-1$
);
final JLabel infoLabel = new JLabel(SimpleAfirmaMessages.getString("ProxyDialog.15")); //$NON-NLS-1$
this.proxyCheckBox.setMnemonic('U');
this.proxyCheckBox.setSelected(PreferencesManager.getBoolean(
PreferencesManager.PREFERENCE_GENERAL_PROXY_SELECTED)
);
this.proxyCheckBox.addItemListener(
e -> {
if (e.getStateChange() == ItemEvent.SELECTED) {
enableComponents(true);
}
else {
enableComponents(false);
}
}
);
// host
final JLabel hostLabel = new JLabel(SimpleAfirmaMessages.getString("ProxyDialog.5")); //$NON-NLS-1$
hostLabel.setLabelFor(this.hostTF);
// Puerto
final JLabel portLabel = new JLabel(SimpleAfirmaMessages.getString("ProxyDialog.7")); //$NON-NLS-1$
portLabel.setLabelFor(this.portTF);
//user name
final JLabel usernameLabel = new JLabel(SimpleAfirmaMessages.getString("ProxyDialog.16")); //$NON-NLS-1$
usernameLabel.setLabelFor(this.usernameProxy);
//password
final JLabel passwordLabel = new JLabel(SimpleAfirmaMessages.getString("ProxyDialog.17")); //$NON-NLS-1$
passwordLabel.setLabelFor(this.passwordProxy);
final AbstractDocument ad = (AbstractDocument) this.portTF.getDocument();
ad.setDocumentFilter(
new DocumentFilter() {
@Override
public void insertString(final DocumentFilter.FilterBypass fb, final int offset, final String text, final AttributeSet attr) throws BadLocationException
{
if(fb.getDocument().getLength() + text.length() < 5 && text.matches("\\d+")) { //$NON-NLS-1$
fb.insertString(offset, text, attr);
}
}
@Override
public void remove(final DocumentFilter.FilterBypass fb, final int offset, final int length) throws BadLocationException
{
fb.remove(offset, length);
}
@Override
public void replace(final DocumentFilter.FilterBypass fb, final int offset, final int length, final String text, final AttributeSet attrs)throws BadLocationException
{
if(fb.getDocument().getLength() + text.length() < 5 && text.matches("\\d+")) { //$NON-NLS-1$
fb.insertString(offset, text, attrs);
}
}
}
);
this.checkConnectionBtn.getAccessibleContext().setAccessibleDescription(
SimpleAfirmaMessages.getString("ProxyDialog.6") //$NON-NLS-1$
);
this.checkConnectionBtn.setMnemonic('V');
this.checkConnectionBtn.addActionListener(
e -> {
LOGGER.info("Verificar"); //$NON-NLS-1$
ProxyPanel.this.setCursor(new Cursor(Cursor.WAIT_CURSOR));
final String host = ProxyPanel.this.getHost();
if(testConnection(host, ProxyPanel.this.getPort())){
LOGGER.info("Conexion proxy correcta"); //$NON-NLS-1$
AOUIFactory.showMessageDialog(
getParent(),
SimpleAfirmaMessages.getString("ProxyDialog.9"), //$NON-NLS-1$
SimpleAfirmaMessages.getString("ProxyDialog.8"), //$NON-NLS-1$
AOUIFactory.INFORMATION_MESSAGE
);
}
else {
LOGGER.info("Conexion proxy incorrecta"); //$NON-NLS-1$
AOUIFactory.showMessageDialog(
getParent(),
SimpleAfirmaMessages.getString("ProxyDialog.10"), //$NON-NLS-1$
SimpleAfirmaMessages.getString("ProxyDialog.8"), //$NON-NLS-1$
AOUIFactory.ERROR_MESSAGE
);
}
ProxyPanel.this.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
);
this.autodetectProxyBtn.getAccessibleContext().setAccessibleDescription(
SimpleAfirmaMessages.getString("ProxyDialog.13") //$NON-NLS-1$
);
this.autodetectProxyBtn.setMnemonic('A');
this.autodetectProxyBtn.addActionListener(e -> {
LOGGER.info("Autodetectar"); //$NON-NLS-1$
ProxyPanel.this.setCursor(new Cursor(Cursor.WAIT_CURSOR));
fillWithDefaultProxy();
ProxyPanel.this.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
}
);
this.add(this.proxyCheckBox, c);
c.gridy++;
c.insets = new Insets(10, 30, 0, 0);
this.add(infoLabel, c);
c.gridwidth = 1;
c.weightx = 0.2;
c.gridy++;
this.add(hostLabel, c);
c.gridwidth = GridBagConstraints.LAST_LINE_END;
c.gridx++;
c.gridwidth = 2;
c.weightx = 1.0;
this.add(this.hostTF,c);
c.gridwidth = 1;
c.weightx = 0.2;
c.insets = new Insets(0, 30, 0, 0);
c.gridy++;
c.gridx--;
this.add(portLabel, c);
c.gridx++;
c.gridwidth = 2;
c.weightx = 1.0;
this.add(this.portTF, c);
c.gridwidth = 1;
c.weightx = 0.2;
c.insets = new Insets(0, 30, 0, 0);
c.gridy++;
c.gridx--;
this.add(usernameLabel, c);
c.gridx++;
c.gridwidth = 2;
c.weightx = 1.0;
this.add(this.usernameProxy, c);
c.gridwidth = 1;
c.weightx = 0.2;
c.insets = new Insets(0, 30, 0, 0);
c.gridy++;
c.gridx--;
this.add(passwordLabel, c);
c.gridx++;
c.gridwidth = 2;
c.weightx = 1.0;
this.add(this.passwordProxy, c);
c.gridwidth = 1;
c.gridy++;
this.add(this.checkConnectionBtn, c);
c.gridx++;
this.add(this.autodetectProxyBtn, c);
this.hostTF.setText(PreferencesManager.get(PreferencesManager.PREFERENCE_GENERAL_PROXY_HOST)
);
this.portTF.setText(PreferencesManager.get(PreferencesManager.PREFERENCE_GENERAL_PROXY_PORT)
);
this.usernameProxy.setText(PreferencesManager.get(PreferencesManager.PREFERENCE_GENERAL_PROXY_USERNAME)
);
enableComponents(this.proxyCheckBox.isSelected());
final String cipheredPwd = PreferencesManager.get(PreferencesManager.PREFERENCE_GENERAL_PROXY_PASSWORD);
char[] pwd;
try {
pwd = ProxyUtil.decipherPassword(cipheredPwd);
}
catch (final Exception e) {
pwd = null;
LOGGER.warning("No se pudo descifrar la contrasena del proxy. Se omitira la contrasena: " + e); //$NON-NLS-1$
JOptionPane.showMessageDialog(this, SimpleAfirmaMessages.getString("ProxyDialog.18")); //$NON-NLS-1$);
// Eliminamos la contrasena mal cifrada de las preferencias
// Si no la eliminamos, el dialogo de error persistiria aunque tuviesemos sin marcar
// la casilla de "Usar proxy", obligandonos a establecer una solo para evitar el error
PreferencesManager.remove(
PreferencesManager.PREFERENCE_GENERAL_PROXY_PASSWORD
);
}
this.passwordProxy.setText(pwd == null ? "" : String.valueOf(pwd)); //$NON-NLS-1$
}
/** Detección automática de proxy. */
void fillWithDefaultProxy() {
LOGGER.info("Detectando proxies..."); //$NON-NLS-1$
// Busqueda de proxies configurados en el sistema
final ProxySearch proxySearch = new ProxySearch();
proxySearch.addStrategy(Strategy.OS_DEFAULT);
proxySearch.addStrategy(Strategy.JAVA);
proxySearch.addStrategy(Strategy.BROWSER);
final ProxySelector proxySelector = proxySearch.getProxySelector();
ProxySelector.setDefault(proxySelector);
if(proxySelector != null) {
final URI home = URI.create(URL_CHECK_CONNECTION);
// Listado de proxies disponibles
final List proxyList = proxySelector.select(home);
if (proxyList != null && !proxyList.isEmpty()) {
LOGGER.info("Proxy disponible: " + proxyList.get(0).toString()); //$NON-NLS-1$
final SocketAddress address = proxyList.get(0).address();
if (address instanceof InetSocketAddress) {
// Host seleccionado
this.hostTF.setText(
((InetSocketAddress) address).getHostName()
);
// Puerto seleccionado
this.portTF.setText(
Integer.toString(((InetSocketAddress) address).getPort())
);
return;
}
}
}
LOGGER.info("No se han detectado proxies en el sistema"); //$NON-NLS-1$
AOUIFactory.showMessageDialog(
getParent(),
SimpleAfirmaMessages.getString("ProxyDialog.14"), //$NON-NLS-1$
SimpleAfirmaMessages.getString("ProxyDialog.11"), //$NON-NLS-1$
AOUIFactory.ERROR_MESSAGE
);
}
/** Test de connexión de red.
* @param addr Dirección del proxy.
* @param port Puerto al que conectarse.
* @return estado de la conexión: true si la conexión es correcta y false en caso contrario.*/
static boolean testConnection(final String addr, final String port) {
boolean connectionStatus = false;
LOGGER.info("Verificando conexion...."); //$NON-NLS-1$
try {
final Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(addr,Integer.parseInt(port)));
final URL url = new URL("http://www.yahoo.com"); //$NON-NLS-1$
final HttpURLConnection uc = (HttpURLConnection)url.openConnection(proxy);
uc.connect();
connectionStatus = true;
}
catch (final Exception e) {
LOGGER.log(Level.WARNING, "Error conectando con el proxy: " + e, e); //$NON-NLS-1$
connectionStatus = false;
}
return connectionStatus;
}
void enableComponents(final boolean enable) {
this.autodetectProxyBtn.setEnabled(enable);
this.checkConnectionBtn.setEnabled(enable);
this.portTF.setEnabled(enable);
this.hostTF.setEnabled(enable);
this.usernameProxy.setEnabled(enable);
this.passwordProxy.setEnabled(enable);
}
}
