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1   /*
2    * Copyright (c) 2002-2022, City of Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.portal.service.captcha;
35  
36  import fr.paris.lutece.portal.service.spring.SpringContextService;
37  
38  import org.springframework.beans.factory.BeanDefinitionStoreException;
39  import org.springframework.beans.factory.CannotLoadBeanClassException;
40  import org.springframework.beans.factory.NoSuchBeanDefinitionException;
41  
42  import javax.servlet.http.HttpServletRequest;
43  
44  /**
45   * Default captcha security service implementation
46   */
47  public class CaptchaSecurityService implements ICaptchaSecurityService
48  {
49      private boolean _bActive = true;
50      private boolean _bAvailable;
51      private ICaptchaService _captchaService;
52  
53      /**
54       * Default constructor.
55       *
56       * Gets the captchaValidator from the captcha plugin. If the validator is missing, sets available to false;
57       */
58      public CaptchaSecurityService( )
59      {
60          try
61          {
62              // first check if captchaValidator bean is available in the jcaptcha plugin context
63              _captchaService = SpringContextService.getBean( "captcha.captchaService" );
64              _bAvailable = _captchaService != null;
65          }
66          catch( CannotLoadBeanClassException | NoSuchBeanDefinitionException | BeanDefinitionStoreException e )
67          {
68              _bAvailable = false;
69          }
70      }
71  
72      /**
73       * {@inheritDoc}
74       */
75      @Override
76      public String getActiveBlockHtml( )
77      {
78          return null;
79      }
80  
81      /**
82       * {@inheritDoc}
83       */
84      @Override
85      public String getHtmlCode( )
86      {
87          if ( isAvailable( ) && isActive( ) )
88          {
89              return _captchaService.getHtmlCode( );
90          }
91          else
92          {
93              return EMPTY_STRING;
94          }
95      }
96  
97      /**
98       * {@inheritDoc}
99       */
100     @Override
101     public void setActive( boolean isActive )
102     {
103         _bActive = isActive;
104     }
105 
106     /**
107      * {@inheritDoc}
108      */
109     @Override
110     public boolean validate( HttpServletRequest request )
111     {
112         if ( isAvailable( ) && isActive( ) )
113         {
114             return _captchaService.validate( request );
115         }
116         else
117         {
118             return true;
119         }
120     }
121 
122     /**
123      * {@inheritDoc}
124      */
125     @Override
126     public boolean isActive( )
127     {
128         return _bActive;
129     }
130 
131     /**
132      * {@inheritDoc}
133      */
134     @Override
135     public boolean isAvailable( )
136     {
137         return _bAvailable;
138     }
139 }