--- /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.equinox;
+
+import java.util.Map;
+
+import javax.security.auth.Subject;
+import javax.security.auth.callback.CallbackHandler;
+import javax.security.auth.login.LoginException;
+
+import org.argeo.security.OsAuthenticationToken;
+import org.springframework.security.Authentication;
+import org.springframework.security.AuthenticationManager;
+import org.springframework.security.context.SecurityContextHolder;
+import org.springframework.security.providers.jaas.SecurityContextLoginModule;
+
+/** Login module which caches one subject per thread. */
+public class OsSpringLoginModule extends SecurityContextLoginModule {
+ // private final static Log log =
+ // LogFactory.getLog(OsSpringLoginModule.class);
+
+ private AuthenticationManager authenticationManager;
+
+ private Subject subject;
+
+ public OsSpringLoginModule() {
+
+ }
+
+ @SuppressWarnings("rawtypes")
+ public void initialize(Subject subject, CallbackHandler callbackHandler,
+ Map sharedState, Map options) {
+ super.initialize(subject, callbackHandler, sharedState, options);
+ this.subject = subject;
+ }
+
+ public boolean login() throws LoginException {
+ // thread already logged in
+ if (SecurityContextHolder.getContext().getAuthentication() != null)
+ return super.login();
+
+ OsAuthenticationToken oat = new OsAuthenticationToken();
+ Authentication authentication = authenticationManager.authenticate(oat);
+ registerAuthentication(authentication);
+ return super.login();
+ }
+
+ @Override
+ public boolean logout() throws LoginException {
+ subject.getPrincipals().clear();
+ return super.logout();
+ }
+
+ /**
+ * Register an {@link Authentication} in the security context.
+ *
+ * @param authentication
+ * has to implement {@link Authentication}.
+ */
+ protected void registerAuthentication(Object authentication) {
+ SecurityContextHolder.getContext().setAuthentication(
+ (Authentication) authentication);
+ }
+
+ public void setAuthenticationManager(
+ AuthenticationManager authenticationManager) {
+ this.authenticationManager = authenticationManager;
+ }
+}