+package org.argeo.cms.widgets.auth;
+
+import static org.argeo.cms.auth.AuthConstants.LOGIN_CONTEXT_ANONYMOUS;
+import static org.argeo.cms.auth.AuthConstants.LOGIN_CONTEXT_USER;
+
+import java.io.IOException;
+
+import javax.security.auth.Subject;
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.callback.NameCallback;
+import javax.security.auth.callback.PasswordCallback;
+import javax.security.auth.callback.UnsupportedCallbackException;
+import javax.security.auth.login.LoginContext;
+import javax.security.auth.login.LoginException;
+
+import org.argeo.cms.CmsException;
+import org.argeo.cms.CmsMsg;
+import org.argeo.cms.CmsStyles;
+import org.argeo.cms.CmsView;
+import org.argeo.cms.auth.CurrentUser;
+import org.argeo.cms.auth.HttpRequestCallback;
+import org.argeo.cms.util.CmsUtils;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.TraverseEvent;
+import org.eclipse.swt.events.TraverseListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Text;
+
+public class CmsLogin implements CmsStyles, CallbackHandler {
+ private Text username, password;
+ private final CmsView cmsView;
+
+ public CmsLogin(CmsView cmsView) {
+ this.cmsView = cmsView;
+ }
+
+ protected boolean isAnonymous() {
+ return CurrentUser.isAnonymous(cmsView.getSubject());
+ }
+
+ protected void userUi(Composite parent) {
+ parent.setLayout(CmsUtils.noSpaceGridLayout());
+ Composite c = new Composite(parent, SWT.NONE);
+ c.setLayout(new GridLayout());
+ c.setLayoutData(CmsUtils.fillAll());
+
+ specificUserUi(c);
+
+ Label l = new Label(c, SWT.NONE);
+ l.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU_ITEM);
+ l.setText(CmsMsg.logout.lead());
+ GridData lData = CmsUtils.fillWidth();
+ lData.widthHint = 120;
+ l.setLayoutData(lData);
+
+ l.addMouseListener(new MouseAdapter() {
+ private static final long serialVersionUID = 6444395812777413116L;
+
+ public void mouseDown(MouseEvent e) {
+ logout();
+ }
+ });
+ }
+
+ /** To be overridden */
+ protected void specificUserUi(Composite parent) {
+
+ }
+
+ protected void anonymousUi(Composite parent) {
+ parent.setLayout(CmsUtils.noSpaceGridLayout());
+
+ // We need a composite for the traversal
+ Composite c = new Composite(parent, SWT.NONE);
+ c.setLayout(new GridLayout());
+ c.setLayoutData(CmsUtils.fillAll());
+
+ Integer textWidth = 120;
+ parent.setData(RWT.CUSTOM_VARIANT, CMS_USER_MENU);
+
+ // new Label(this, SWT.NONE).setText(CmsMsg.username.lead());
+ username = new Text(c, SWT.BORDER);
+ username.setMessage(CmsMsg.username.lead());
+ username.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_USERNAME);
+ GridData gd = CmsUtils.fillWidth();
+ gd.widthHint = textWidth;
+ username.setLayoutData(gd);
+
+ // new Label(this, SWT.NONE).setText(CmsMsg.password.lead());
+ password = new Text(c, SWT.BORDER | SWT.PASSWORD);
+ password.setMessage(CmsMsg.password.lead());
+ password.setData(RWT.CUSTOM_VARIANT, CMS_LOGIN_DIALOG_PASSWORD);
+ gd = CmsUtils.fillWidth();
+ gd.widthHint = textWidth;
+ password.setLayoutData(gd);
+
+ TraverseListener tl = new TraverseListener() {
+ private static final long serialVersionUID = -1158892811534971856L;
+
+ public void keyTraversed(TraverseEvent e) {
+ if (e.detail == SWT.TRAVERSE_RETURN)
+ login();
+ }
+ };
+ c.addTraverseListener(tl);
+ username.addTraverseListener(tl);
+ password.addTraverseListener(tl);
+ parent.setTabList(new Control[] { c });
+ c.setTabList(new Control[] { username, password });
+ c.setFocus();
+ }
+
+ protected void login() {
+ Subject subject = cmsView.getSubject();
+ LoginContext loginContext;
+ try {
+ //
+ // LOGIN
+ //
+ new LoginContext(LOGIN_CONTEXT_ANONYMOUS, subject).logout();
+ loginContext = new LoginContext(LOGIN_CONTEXT_USER, subject, this);
+ loginContext.login();
+ } catch (LoginException e1) {
+ throw new CmsException("Cannot authenticate", e1);
+ }
+ cmsView.authChange(loginContext);
+ }
+
+ protected void logout() {
+ cmsView.logout();
+ cmsView.navigateTo("~");
+ }
+
+ @Override
+ public void handle(Callback[] callbacks) throws IOException,
+ UnsupportedCallbackException {
+ for (Callback callback : callbacks) {
+ if (callback instanceof NameCallback)
+ ((NameCallback) callback).setName(username.getText());
+ else if (callback instanceof PasswordCallback)
+ ((PasswordCallback) callback).setPassword(password
+ .getTextChars());
+ else if (callback instanceof HttpRequestCallback)
+ ((HttpRequestCallback) callback).setRequest(RWT.getRequest());
+ }
+ }
+
+}