| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.myfaces.tobago.security; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.el.ELContext; |
| import javax.el.MethodExpression; |
| import javax.el.MethodInfo; |
| import javax.faces.application.FacesMessage; |
| import javax.faces.component.StateHolder; |
| import javax.faces.component.UIComponentBase; |
| import javax.faces.context.FacesContext; |
| |
| public class CheckAuthorisationMethodExpression extends MethodExpression implements StateHolder { |
| private static final Logger LOG = LoggerFactory.getLogger(CheckAuthorisationMethodExpression.class); |
| |
| private MethodExpression methodExpression; |
| |
| public CheckAuthorisationMethodExpression() { |
| } |
| |
| public CheckAuthorisationMethodExpression(final MethodExpression methodExpression) { |
| this.methodExpression = methodExpression; |
| } |
| |
| @Override |
| public MethodInfo getMethodInfo(final ELContext context) { |
| return methodExpression.getMethodInfo(context); |
| } |
| |
| @Override |
| public Object invoke(final ELContext context, final Object[] objects) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("MethodBinding invoke " + getExpressionString()); |
| } |
| // MethodExpression with a argument list would not be checked for authorisation |
| if ((objects!=null && objects.length > 0) |
| || AuthorizationUtils.isAuthorized(FacesContext.getCurrentInstance(), getExpressionString())) { |
| return methodExpression.invoke(context, objects); |
| } else { |
| // TODO better message |
| FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Not authorised")); |
| return null; |
| } |
| } |
| |
| @Override |
| public String getExpressionString() { |
| return methodExpression.getExpressionString(); |
| } |
| |
| @Override |
| public boolean equals(final Object obj) { |
| return methodExpression.equals(obj); |
| } |
| |
| @Override |
| public int hashCode() { |
| return methodExpression.hashCode(); |
| } |
| |
| @Override |
| public boolean isLiteralText() { |
| return methodExpression.isLiteralText(); |
| } |
| |
| public Object saveState(final FacesContext facesContext) { |
| final Object[] saveState = new Object[1]; |
| saveState[0] = UIComponentBase.saveAttachedState(facesContext, methodExpression); |
| return saveState; |
| } |
| |
| public void restoreState(final FacesContext facesContext, final Object savedState) { |
| final Object[] values = (Object[]) savedState; |
| methodExpression = (MethodExpression) UIComponentBase.restoreAttachedState(facesContext, values[0]); |
| } |
| |
| public boolean isTransient() { |
| return methodExpression instanceof StateHolder && ((StateHolder) methodExpression).isTransient(); |
| } |
| |
| public void setTransient(final boolean bool) { |
| if (methodExpression instanceof StateHolder) { |
| ((StateHolder) methodExpression).setTransient(bool); |
| } |
| } |
| |
| public boolean isAuthorized(final FacesContext facesContext) { |
| return AuthorizationUtils.isAuthorized(facesContext, getExpressionString()); |
| } |
| } |