Clarify SLC project structure.

[gpl/argeo-slc.git] / cms / org.argeo.slc.support / src / org / argeo / slc / jsch / SwingUserInfo.java

diff --git a/cms/org.argeo.slc.support/src/org/argeo/slc/jsch/SwingUserInfo.java b/cms/org.argeo.slc.support/src/org/argeo/slc/jsch/SwingUserInfo.java
new file mode 100644 (file)
index 0000000..14eb16b
--- /dev/null
+++ b/cms/org.argeo.slc.support/src/org/argeo/slc/jsch/SwingUserInfo.java
@@ -0,0 +1,140 @@
+package org.argeo.slc.jsch;
+
+import java.awt.Container;
+import java.awt.GridLayout;
+import java.awt.Panel;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.Arrays;
+
+import javax.swing.JButton;
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JPasswordField;
+
+/** Retrieves a password or a passphrase using standard Swing */
+public class SwingUserInfo extends SimpleUserInfo {
+
+       private Boolean alwaysPrompt = false;
+
+       public boolean promptPassphrase(String message) {
+               if (passphrase != null)
+                       return true;
+
+               if (!alwaysPrompt && passphraseSafe != null)
+                       return true;
+
+               PasswordDialog dialog = new PasswordDialog(message) {
+                       private static final long serialVersionUID = 3266299327166418364L;
+
+                       @Override
+                       protected void useCredentials(char[] password) {
+                               passphraseSafe = new char[password.length];
+                               System.arraycopy(password, 0, passphraseSafe, 0,
+                                               password.length);
+                               // passphraseSafe = Arrays.copyOf(password, password.length);
+                       }
+               };
+               dialog.setVisible(true);
+               return dialog.getWasProvided();
+       }
+
+       public boolean promptPassword(String message) {
+               if (password != null)
+                       return true;
+
+               if (!alwaysPrompt && passwordSafe != null)
+                       return true;
+
+               PasswordDialog dialog = new PasswordDialog(message) {
+                       private static final long serialVersionUID = 3266299327166418364L;
+
+                       @Override
+                       protected void useCredentials(char[] password) {
+                               // passwordSafe = Arrays.copyOf(password, password.length);
+                               passwordSafe = new char[password.length];
+                               System.arraycopy(password, 0, passwordSafe, 0, password.length);
+                       }
+               };
+               dialog.setVisible(true);
+               return dialog.getWasProvided();
+       }
+
+       public void setAlwaysPrompt(Boolean alwaysPrompt) {
+               this.alwaysPrompt = alwaysPrompt;
+       }
+
+       protected static class PasswordDialog extends JDialog implements
+                       ActionListener {
+               private static final long serialVersionUID = 3399155607980846207L;
+
+               private static final String OK = "ok";
+
+               private JPasswordField password = new JPasswordField("", 10);
+
+               private JButton okButton;
+               private JButton cancelButton;
+
+               private Boolean wasProvided = false;
+
+               public PasswordDialog(String title) {
+                       setTitle(title);
+                       setModal(true);
+                       setLocationRelativeTo(null);
+                       setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+
+                       JPanel p1 = new JPanel(new GridLayout(1, 2, 3, 3));
+                       p1.add(new JLabel("Password"));
+                       password.setActionCommand(OK);
+                       password.addActionListener(this);
+                       p1.add(password);
+                       add("Center", p1);
+
+                       Panel p2 = new Panel();
+                       okButton = addButton(p2, "OK");
+                       okButton.setActionCommand(OK);
+                       cancelButton = addButton(p2, "Cancel");
+                       add("South", p2);
+                       setSize(240, 120);
+
+                       pack();
+               }
+
+               /** To be overridden */
+               protected void useCredentials(char[] password) {
+                       // does nothing
+               }
+
+               private JButton addButton(Container c, String name) {
+                       JButton button = new JButton(name);
+                       button.addActionListener(this);
+                       c.add(button);
+                       return button;
+               }
+
+               public final void actionPerformed(ActionEvent evt) {
+                       Object source = evt.getSource();
+                       if (source == okButton || evt.getActionCommand().equals(OK)) {
+                               char[] p = password.getPassword();
+                               useCredentials(p);
+                               wasProvided = true;
+                               Arrays.fill(p, '0');
+                               cleanUp();
+                       } else if (source == cancelButton)
+                               cleanUp();
+               }
+
+               private void cleanUp() {
+                       password.setText("");
+                       dispose();
+               }
+
+               public Boolean getWasProvided() {
+                       return wasProvided;
+               }
+
+       }
+
+}