1 /*
2 * Copyright (c) 2002-2014, Mairie de 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.plugins.formengine.service.validator;
35
36 import fr.paris.lutece.plugins.formengine.business.jaxb.formdefinition.Field;
37 import fr.paris.lutece.plugins.formengine.business.jaxb.formdefinition.FileName;
38 import fr.paris.lutece.plugins.formengine.web.FormErrorsList;
39
40 import java.util.HashSet;
41 import java.util.Iterator;
42 import java.util.Set;
43 import java.util.StringTokenizer;
44
45
46 /**
47 * This class checks the file types for an upload field.
48 */
49 public class ValidatorFileTypes extends FieldValidator
50 {
51 private static final String PROPERTY_VALIDATION_MESSAGE = "formengine.validator.message.fileTypes";
52
53 // The separators that can be used in the provided list of extensions
54 private static final String SEPARATORS = ",; ";
55
56 /**
57 * The validate implementation.
58 * Check that the field does not contain files with other extensions than
59 * those specified
60 * @param field The field to validate
61 * @param errors A FormErrorsList to add errors into
62 * @return True if validate, false otherwise
63 */
64 public boolean validate( Field field, FormErrorsList errors )
65 {
66 // The parameter contains the list of allowed file types
67 String strFileTypes = this.getRuleParameter( );
68
69 // Parse the parameter and build a Set containing the extensions
70 Set<String> fileTypes = new HashSet<String>( );
71 StringTokenizer parser = new StringTokenizer( strFileTypes, SEPARATORS );
72
73 while ( parser.hasMoreTokens( ) )
74 {
75 fileTypes.add( parser.nextToken( ).toUpperCase( ) );
76 }
77
78 // Check if all files have a valid extension
79 boolean bValid = true;
80
81 if ( field.getFileNames( ) != null )
82 {
83 Iterator iterFileNames = field.getFileNames( ).getFileName( ).iterator( );
84
85 while ( bValid && iterFileNames.hasNext( ) )
86 {
87 String strFileName = ( (FileName) iterFileNames.next( ) ).getValue( );
88 String strFileType = strFileName.substring( strFileName.lastIndexOf( "." ) + 1 ).toUpperCase( );
89 bValid = fileTypes.contains( strFileType );
90 }
91 }
92
93 if ( !bValid )
94 {
95 String[] messageParams = new String[3];
96 messageParams[0] = field.getName( );
97 messageParams[1] = field.getLabel( );
98 messageParams[2] = strFileTypes;
99
100 if ( this.getErrorMessage( ) != null )
101 {
102 errors.addErrorMessage( this.getErrorMessage( ) );
103 }
104 else
105 {
106 errors.addError( PROPERTY_VALIDATION_MESSAGE, messageParams );
107 }
108 }
109
110 return bValid;
111 }
112 }