Move Eclipse 3 components to legacy.

[lgpl/argeo-commons.git] / legacy / org.argeo.cms.ui.workbench / src / org / argeo / cms / spring / AuthenticatedApplicationContextInitialization.java

diff --git a/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/spring/AuthenticatedApplicationContextInitialization.java b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/spring/AuthenticatedApplicationContextInitialization.java
new file mode 100644 (file)
index 0000000..e1af582
--- /dev/null
+++ b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/spring/AuthenticatedApplicationContextInitialization.java
@@ -0,0 +1,80 @@
+/*
+ * 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.cms.spring;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.security.auth.Subject;
+
+import org.eclipse.gemini.blueprint.context.DependencyInitializationAwareBeanPostProcessor;
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.support.AbstractBeanFactory;
+import org.springframework.beans.factory.support.SecurityContextProvider;
+import org.springframework.beans.factory.support.SimpleSecurityContextProvider;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+
+/**
+ * Executes with a system authentication the instantiation and initialization
+ * methods of the application context where it has been defined.
+ */
+public class AuthenticatedApplicationContextInitialization extends
+               AbstractSystemExecution implements
+               DependencyInitializationAwareBeanPostProcessor, ApplicationContextAware {
+       /** If non empty, restricts to these beans */
+       private List<String> beanNames = new ArrayList<String>();
+
+       public Object postProcessBeforeInitialization(Object bean, String beanName)
+                       throws BeansException {
+               if (beanNames.size() == 0 || beanNames.contains(beanName))
+                       authenticateAsSystem();
+               return bean;
+       }
+
+       public Object postProcessAfterInitialization(Object bean, String beanName)
+                       throws BeansException {
+               if (beanNames.size() == 0 || beanNames.contains(beanName))
+                       deauthenticateAsSystem();
+               return bean;
+       }
+
+       public void setBeanNames(List<String> beanNames) {
+               this.beanNames = beanNames;
+       }
+
+       @Override
+       public void setApplicationContext(ApplicationContext applicationContext)
+                       throws BeansException {
+               if (applicationContext.getAutowireCapableBeanFactory() instanceof AbstractBeanFactory) {
+                       final AbstractBeanFactory beanFactory = ((AbstractBeanFactory) applicationContext
+                                       .getAutowireCapableBeanFactory());
+                       // retrieve subject's access control context
+                       // and set it as the bean factory security context
+                       Subject.doAs(getSubject(), new PrivilegedAction<Void>() {
+                               @Override
+                               public Void run() {
+                                       SecurityContextProvider scp = new SimpleSecurityContextProvider(
+                                                       AccessController.getContext());
+                                       beanFactory.setSecurityContextProvider(scp);
+                                       return null;
+                               }
+                       });
+               }
+       }
+}