src/tim/prune/function/settings/SetEarthdataAuthentication.java

   1 package tim.prune.function.settings;
   2
   3 import java.awt.Component;
   4 import java.awt.BorderLayout;
   5 import java.awt.FlowLayout;
   6 import java.awt.GridLayout;
   7 import java.awt.event.ActionEvent;
   8 import java.awt.event.ActionListener;
   9 import java.util.Base64;
  10
  11 import javax.swing.BorderFactory;
  12 import javax.swing.BoxLayout;
  13 import javax.swing.JButton;
  14 import javax.swing.JDialog;
  15 import javax.swing.JLabel;
  16 import javax.swing.JPanel;
  17 import javax.swing.JPasswordField;
  18 import javax.swing.JTextField;
  19
  20 import tim.prune.App;
  21 import tim.prune.GenericFunction;
  22 import tim.prune.I18nManager;
  23 import tim.prune.config.Config;
  24 import tim.prune.function.srtm.SrtmGl1Source;
  25 import tim.prune.function.srtm.SrtmSourceException;
  26
  27 /**
  28  * Set authentication data for the NASA Earthdata systems
  29  */
  30 public class SetEarthdataAuthentication extends GenericFunction
  31 {
  32         private JDialog _dialog = null;
  33         private JTextField _usernameField = null;
  34         private JPasswordField _passwordField = null;
  35         private JLabel _authAccepted = null;
  36
  37         /**
  38          * Constructor
  39          * @param inApp App object
  40          */
  41         public SetEarthdataAuthentication(App inApp) {
  42                 super(inApp);
  43         }
  44
  45         /** @return name key */
  46         public String getNameKey() {
  47                 return "function.setearthdataauthentication";
  48         }
  49
  50         public void begin()
  51         {
  52                 if (_dialog == null)
  53                 {
  54                         _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
  55                         _dialog.setLocationRelativeTo(_parentFrame);
  56                         // Create Gui and show it
  57                         _dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
  58                         _dialog.getContentPane().add(makeDialogComponents());
  59                         _dialog.pack();
  60                 }
  61                 prefillCurrentAuth();
  62                 _dialog.setVisible(true);
  63         }
  64
  65         /**
  66          * Make the dialog components
  67          * @return the GUI components for the dialog
  68          */
  69         private JPanel makeDialogComponents()
  70         {
  71                 // Blurb to explain to the user
  72                 JPanel dialogPanel = new JPanel();
  73                 dialogPanel.setLayout(new BorderLayout());
  74                 dialogPanel.add(new JLabel("<html>"+I18nManager.getText("dialog.earthdataauth.intro")+"</html>"), BorderLayout.NORTH);
  75
  76                 // username and password fields
  77                 JPanel mainPanel = new JPanel();
  78                 mainPanel.setLayout(new BorderLayout());
  79                 JPanel usernamePasswordPanel = new JPanel();
  80                 usernamePasswordPanel.setLayout(new GridLayout(2, 2));
  81
  82                 JLabel usernameLabel = new JLabel(I18nManager.getText("dialog.earthdataauth.user"));
  83                 usernamePasswordPanel.add(usernameLabel);
  84                 _usernameField = new JTextField("");
  85                 usernamePasswordPanel.add(_usernameField);
  86
  87                 JLabel passwordLabel = new JLabel(I18nManager.getText("dialog.earthdataauth.password"));
  88                 usernamePasswordPanel.add(passwordLabel);
  89                 _passwordField = new JPasswordField("");
  90                 usernamePasswordPanel.add(_passwordField);
  91                 mainPanel.add(usernamePasswordPanel, BorderLayout.CENTER);
  92
  93                 JPanel authStatusPanel = new JPanel();
  94                 authStatusPanel.setLayout(new FlowLayout(FlowLayout.LEFT));
  95                 _authAccepted = new JLabel(" ");
  96                 authStatusPanel.add(_authAccepted);
  97                 mainPanel.add(authStatusPanel, BorderLayout.SOUTH);
  98
  99                 mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
 100                 dialogPanel.add(mainPanel, BorderLayout.CENTER);
 101
 102                 // ok / cancel buttons at bottom
 103                 JPanel buttonPanel = new JPanel();
 104                 buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
 105                 JButton checkButton = new JButton(I18nManager.getText("button.check"));
 106                 checkButton.addActionListener(new ActionListener() {
 107                         public void actionPerformed(ActionEvent e) {
 108                                 testUsernameAndPassword();
 109                         }
 110                 });
 111                 buttonPanel.add(checkButton);
 112                 JButton okButton = new JButton(I18nManager.getText("button.ok"));
 113                 okButton.addActionListener(new ActionListener() {
 114                         public void actionPerformed(ActionEvent e) {
 115                                 finish();
 116                         }
 117                 });
 118                 buttonPanel.add(okButton);
 119                 JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
 120                 cancelButton.addActionListener(new ActionListener() {
 121                         public void actionPerformed(ActionEvent e) {
 122                                 _dialog.dispose();
 123                         }
 124                 });
 125                 buttonPanel.add(cancelButton);
 126                 dialogPanel.add(buttonPanel, BorderLayout.SOUTH);
 127                 dialogPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 15));
 128                 return dialogPanel;
 129         }
 130
 131         private String getNewAuthString()
 132         {
 133                 String username = _usernameField.getText();
 134                 String password = _passwordField.getText();
 135                 return Base64.getEncoder().encodeToString((username + ":" + password).getBytes());
 136         }
 137
 138         private void finish()
 139         {
 140                 Config.setConfigString(Config.KEY_EARTHDATA_AUTH, getNewAuthString());
 141                 _dialog.dispose();
 142         }
 143
 144         private void prefillCurrentAuth()
 145         {
 146                 String authString = Config.getConfigString(Config.KEY_EARTHDATA_AUTH);
 147                 if (authString == null)
 148                 {
 149                         _usernameField.setText("");
 150                         _passwordField.setText("");
 151                 }
 152                 String decoded = new String(Base64.getDecoder().decode(authString));
 153                 if (decoded.contains(":"))
 154                 {
 155                         _usernameField.setText(decoded.split(":", 2)[0]);
 156                         _passwordField.setText(decoded.split(":", 2)[1]);
 157                 }
 158                 else
 159                 {
 160                         _usernameField.setText("");
 161                         _passwordField.setText("");
 162                 }
 163
 164                 _authAccepted.setText(" ");
 165         }
 166
 167         private void testUsernameAndPassword()
 168         {
 169                 String username = _usernameField.getText();
 170                 String password = _passwordField.getText();
 171                 SrtmGl1Source srtmGL1 = new SrtmGl1Source();
 172                 try
 173                 {
 174                         _authAccepted.setText("...");
 175                         srtmGL1.testAuth(getNewAuthString());
 176                         _authAccepted.setText(I18nManager.getText("dialog.earthdataauth.authaccepted"));
 177                 }
 178                 catch (SrtmSourceException e)
 179                 {
 180                         _authAccepted.setText(I18nManager.getText("dialog.earthdataauth.authrejected") + ": " + e.getMessage());
 181                 }
 182         }
 183 }