--- /dev/null
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.security.ui.rap;
+
+import java.security.PrivilegedAction;
+
+import javax.security.auth.Subject;
+import javax.security.auth.login.LoginException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.ArgeoException;
+import org.argeo.eclipse.ui.ErrorFeedback;
+import org.argeo.util.LocaleUtils;
+import org.eclipse.equinox.security.auth.ILoginContext;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.rap.rwt.RWT;
+import org.eclipse.rap.rwt.application.IEntryPoint;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.PlatformUI;
+import org.springframework.security.BadCredentialsException;
+import org.springframework.security.context.SecurityContext;
+import org.springframework.security.context.SecurityContextHolder;
+
+/**
+ * RAP entry point with login capabilities. Once the user has been
+ * authenticated, the workbench is run as a privileged action by the related
+ * subject.
+ */
+public class SecureEntryPoint implements IEntryPoint {
+ private final static Log log = LogFactory.getLog(SecureEntryPoint.class);
+
+ /**
+ * From org.springframework.security.context.
+ * HttpSessionContextIntegrationFilter
+ */
+ protected static final String SPRING_SECURITY_CONTEXT_KEY = "SPRING_SECURITY_CONTEXT";
+
+ /**
+ * How many seconds to wait before invalidating the session if the user has
+ * not yet logged in.
+ */
+ private Integer loginTimeout = 1 * 60;
+ // TODO make it configurable
+ /** Default session timeout is 8 hours (European working day length) */
+ private Integer sessionTimeout = 8 * 60 * 60;
+
+ /** Override to provide an application specific workbench advisor */
+ protected RapWorkbenchAdvisor createRapWorkbenchAdvisor(String username) {
+ return new RapWorkbenchAdvisor(username);
+ }
+
+ @Override
+ public final int createUI() {
+ // Short login timeout so that the modal dialog login doesn't hang
+ // around too long
+ RWT.getRequest().getSession().setMaxInactiveInterval(loginTimeout);
+
+ // Try to load security context thanks to the session processing filter
+ HttpServletRequest httpRequest = RWT.getRequest();
+ HttpSession httpSession = httpRequest.getSession();
+ Object contextFromSessionObject = httpSession
+ .getAttribute(SPRING_SECURITY_CONTEXT_KEY);
+ if (contextFromSessionObject != null)
+ SecurityContextHolder
+ .setContext((SecurityContext) contextFromSessionObject);
+
+// if (log.isDebugEnabled())
+// log.debug("THREAD=" + Thread.currentThread().getId()
+// + ", sessionStore=" + RWT.getSessionStore().getId()
+// + ", remote user=" + httpRequest.getRemoteUser());
+
+ // create display
+ final Display display = PlatformUI.createDisplay();
+
+ // log in
+ final ILoginContext loginContext = SecureRapActivator
+ .createLoginContext(SecureRapActivator.CONTEXT_SPRING);
+ Subject subject = null;
+ tryLogin: while (subject == null && !display.isDisposed()) {
+ try {
+ loginContext.login();
+ subject = loginContext.getSubject();
+
+ // add security context to session
+ if (httpSession.getAttribute(SPRING_SECURITY_CONTEXT_KEY) == null)
+ httpSession.setAttribute(SPRING_SECURITY_CONTEXT_KEY,
+ SecurityContextHolder.getContext());
+ // add thread locale to RWT session
+ log.info("Locale "+LocaleUtils.threadLocale.get());
+ RWT.setLocale(LocaleUtils.threadLocale.get());
+
+ // Once the user is logged in, she can have a longer session
+ // timeout
+ RWT.getRequest().getSession()
+ .setMaxInactiveInterval(sessionTimeout);
+ if (log.isDebugEnabled())
+ log.debug("Authenticated " + subject);
+ } catch (LoginException e) {
+ BadCredentialsException bce = wasCausedByBadCredentials(e);
+ if (bce != null) {
+ MessageDialog.openInformation(display.getActiveShell(),
+ "Bad Credentials", bce.getMessage());
+ // retry login
+ continue tryLogin;
+ }
+ return processLoginDeath(display, e);
+ }
+ }
+
+ final String username = subject.getPrincipals().iterator().next()
+ .getName();
+ // Logout callback when the display is disposed
+ display.disposeExec(new Runnable() {
+ public void run() {
+ log.debug("Display disposed");
+ logout(loginContext, username);
+ }
+ });
+
+ //
+ // RUN THE WORKBENCH
+ //
+ Integer returnCode = null;
+ try {
+ returnCode = Subject.doAs(subject, new PrivilegedAction<Integer>() {
+ public Integer run() {
+ RapWorkbenchAdvisor workbenchAdvisor = createRapWorkbenchAdvisor(username);
+ int result = PlatformUI.createAndRunWorkbench(display,
+ workbenchAdvisor);
+ return new Integer(result);
+ }
+ });
+ // logout(loginContext, username);
+ } finally {
+ display.dispose();
+ }
+ return returnCode;
+ }
+
+ private Integer processLoginDeath(Display display, LoginException e) {
+ // check thread death
+ ThreadDeath td = wasCausedByThreadDeath(e);
+ if (td != null) {
+ display.dispose();
+ throw td;
+ }
+ if (!display.isDisposed()) {
+ ErrorFeedback.show("Unexpected exception during authentication", e);
+ // this was not just bad credentials or death thread
+ RWT.getRequest().getSession().setMaxInactiveInterval(1);
+ display.dispose();
+ return -1;
+ } else {
+ throw new ArgeoException(
+ "Unexpected exception during authentication", e);
+ }
+
+ }
+
+ /** Recursively look for {@link BadCredentialsException} in the root causes. */
+ private BadCredentialsException wasCausedByBadCredentials(Throwable t) {
+ if (t instanceof BadCredentialsException)
+ return (BadCredentialsException) t;
+
+ if (t.getCause() != null)
+ return wasCausedByBadCredentials(t.getCause());
+ else
+ return null;
+ }
+
+ /**
+ * If there is a {@link ThreadDeath} in the root causes, rethrow it
+ * (important for RAP cleaning mechanism)
+ */
+ protected ThreadDeath wasCausedByThreadDeath(Throwable t) {
+ if (t instanceof ThreadDeath)
+ return (ThreadDeath) t;
+
+ if (t.getCause() != null)
+ return wasCausedByThreadDeath(t.getCause());
+ else
+ return null;
+ }
+
+ protected void logout(ILoginContext secureContext, String username) {
+ try {
+ HttpServletRequest httpRequest = RWT.getRequest();
+ HttpSession httpSession = httpRequest.getSession();
+ httpSession.setAttribute(SPRING_SECURITY_CONTEXT_KEY, null);
+ RWT.getRequest().getSession().setMaxInactiveInterval(1);
+ SecurityContextHolder.clearContext();
+ secureContext.logout();
+ log.info("Logged out " + (username != null ? username : "")
+ + " (THREAD=" + Thread.currentThread().getId() + ")");
+ } catch (LoginException e) {
+ log.error("Erorr when logging out", e);
+ }
+ }
+}
projects / lgpl / argeo-commons.git / blobdiff