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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.fileimage;
35  
36  import javax.servlet.http.HttpServletRequest;
37  
38  import org.apache.commons.fileupload.FileItem;
39  
40  import fr.paris.lutece.portal.business.file.File;
41  import fr.paris.lutece.portal.business.file.FileHome;
42  import fr.paris.lutece.portal.business.physicalfile.PhysicalFile;
43  import fr.paris.lutece.portal.business.physicalfile.PhysicalFileHome;
44  import fr.paris.lutece.portal.business.user.AdminUser;
45  import fr.paris.lutece.portal.business.user.attribute.AdminUserFieldHome;
46  import fr.paris.lutece.portal.service.admin.AdminUserService;
47  import fr.paris.lutece.portal.service.file.FileService;
48  import fr.paris.lutece.portal.service.image.ImageResource;
49  import fr.paris.lutece.portal.service.image.ImageResourceManager;
50  import fr.paris.lutece.portal.service.image.ImageResourceProvider;
51  import fr.paris.lutece.portal.service.init.LuteceInitException;
52  import fr.paris.lutece.portal.web.LocalVariables;
53  import fr.paris.lutece.util.file.FileUtil;
54  
55  /**
56   * Service for AdminUser image attributes. Provide ImageResource management
57   */
58  public class FileImageService implements ImageResourceProvider
59  {
60      private static FileImageServicemage/FileImageService.html#FileImageService">FileImageService _singleton = new FileImageService( );
61      private static final String IMAGE_RESOURCE_TYPE_ID = "core_attribute_img";
62  
63      /**
64       * Creates a new instance of FileImgService
65       */
66      private FileImageService( )
67      {
68      }
69  
70      /**
71       * Init
72       *
73       * @throws LuteceInitException
74       *             if an error occurs
75       */
76      public static synchronized void init( )
77      {
78          getInstance( ).register( );
79      }
80  
81      /**
82       * Initializes the service
83       */
84      public void register( )
85      {
86          ImageResourceManager.registerProvider( this );
87      }
88  
89      /**
90       * Get the unique instance of the service
91       *
92       * @return The unique instance
93       */
94      public static FileImageService getInstance( )
95      {
96          return _singleton;
97      }
98  
99      /**
100      * Return the Resource id
101      *
102      * @param nIdResource
103      *            The resource identifier
104      * @return The Resource Image
105      */
106     public ImageResource getImageResource( int nIdResource )
107     {
108         
109         if ( !isAuthorized( nIdResource ) ) return null;
110         
111         File file = FileHome.findByPrimaryKey( nIdResource );
112 
113         if ( ( file != null ) && ( file.getPhysicalFile( ) != null ) && FileUtil.hasImageExtension( file.getTitle( ) ) )
114         {
115             PhysicalFile physicalFile = PhysicalFileHome.findByPrimaryKey( file.getPhysicalFile( ).getIdPhysicalFile( ) );
116             ImageResource/ImageResource.html#ImageResource">ImageResource imageResource = new ImageResource( );
117             imageResource.setImage( physicalFile.getValue( ) );
118             imageResource.setMimeType( file.getMimeType( ) );
119 
120             return imageResource;
121         }
122         
123 
124         return null;
125     }
126 
127     /**
128      * Return the Resource Type id
129      *
130      * @return The Resource Type Id
131      */
132     public String getResourceTypeId( )
133     {
134         return IMAGE_RESOURCE_TYPE_ID;
135     }
136 
137     /**
138      * check rights
139      *
140      * @param nIdResource
141      * @return true if authorized
142      */
143     private static boolean isAuthorized(  int nIdResource  )
144     {
145         HttpServletRequest request = LocalVariables.getRequest( );
146         AdminUser user = AdminUserService.getAdminUser( request );
147 
148         return ( user == null || !AdminUserFieldHome.existsWithFile( nIdResource ) );
149     }
150     
151     /**
152      * Add Image Resource
153      * @param fileItem
154      * @return the Image File Key
155      */
156     public String addImageResource( FileItem fileItem )
157 	{
158 		return FileService.getInstance( ).getFileStoreServiceProvider( ).storeFileItem( fileItem );
159 	}
160 }