Fix build

[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / widgets / auth / CmsLogin.java

diff --git a/org.argeo.cms/src/org/argeo/cms/widgets/auth/CmsLogin.java b/org.argeo.cms/src/org/argeo/cms/widgets/auth/CmsLogin.java
new file mode 100644 (file)
index 0000000..9edc2f0
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/widgets/auth/CmsLogin.java
@@ -0,0 +1,156 @@
+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());
+               }
+       }
+
+}