1 /**
2 * This file Copyright (c) 2012-2014 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.security.app.dialog.field.validator;
35
36 import info.magnolia.cms.security.SecuritySupport;
37 import info.magnolia.ui.vaadin.integration.jcr.JcrNewNodeAdapter;
38 import info.magnolia.ui.vaadin.integration.jcr.JcrNodeAdapter;
39
40 import javax.jcr.RepositoryException;
41
42 import org.apache.commons.lang3.StringUtils;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
45
46 import com.vaadin.data.Item;
47 import com.vaadin.data.validator.AbstractStringValidator;
48
49 /**
50 * A validator to ensure uniqueness of role names.
51 */
52 public class UniqueRoleNameValidator extends AbstractStringValidator {
53
54 private static final Logger log = LoggerFactory.getLogger(UniqueRoleNameValidator.class);
55
56 private final SecuritySupport securitySupport;
57 private final Item item;
58
59 public UniqueRoleNameValidator(Item item, String errorMessage, SecuritySupport securitySupport) {
60 super(errorMessage);
61 this.item = item;
62 this.securitySupport = securitySupport;
63 }
64
65 @Override
66 protected boolean isValidValue(String value) {
67 if (item instanceof JcrNodeAdapter) {
68 // If we're editing an existing node then its allowed to use the current username of course
69 if (!(item instanceof JcrNewNodeAdapter)) {
70 try {
71 String currentName = ((JcrNodeAdapter) item).getJcrItem().getName();
72 if (StringUtils.equals(value, currentName)) {
73 return true;
74 }
75 } catch (RepositoryException e) {
76 log.error("Exception occurred getting node name of node [{}]", ((JcrNodeAdapter) item).getItemId(), e);
77 return false;
78 }
79 }
80 if (securitySupport.getRoleManager().getRole(value) != null) {
81 // role with such name already exists
82 return false;
83 }
84 return true;
85 }
86 return false;
87 }
88 }