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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.security;
21  
22  import org.apache.myfaces.tobago.component.UIButton;
23  
24  import javax.el.MethodExpression;
25  import javax.faces.context.FacesContext;
26  
27  public class UISecuredButton extends UIButton {
28  
29    public static final String COMPONENT_TYPE = "org.apache.myfaces.tobago.SecuredButton";
30  
31    /**
32     * No-arg constructor used during restoreState
33     */
34    public UISecuredButton() {
35    }
36  
37    @Override
38    public boolean isDisabled() {
39      if (getActionExpression() instanceof CheckAuthorisationMethodExpression) {
40        return !((CheckAuthorisationMethodExpression)
41            getActionExpression()).isAuthorized(FacesContext.getCurrentInstance())
42            || super.isDisabled();
43      }
44      return super.isDisabled();
45    }
46  
47    @Override
48    public void setActionExpression(final MethodExpression actionExpression) {
49      if (actionExpression != null) {
50        super.setActionExpression(new CheckAuthorisationMethodExpression(actionExpression));
51      } else {
52        super.setActionExpression(actionExpression);
53      }
54    }
55  }