1 /**
2 * This file Copyright (c) 2012-2018 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.core.Path;
37 import info.magnolia.cms.security.SecuritySupport;
38 import info.magnolia.ui.vaadin.integration.jcr.JcrNewNodeAdapter;
39 import info.magnolia.ui.vaadin.integration.jcr.JcrNodeAdapter;
40
41 import javax.jcr.RepositoryException;
42
43 import org.apache.commons.lang3.StringUtils;
44 import org.slf4j.Logger;
45 import org.slf4j.LoggerFactory;
46
47 import com.vaadin.v7.data.Item;
48 import com.vaadin.v7.data.validator.AbstractStringValidator;
49
50 /**
51 * A validator to ensure uniqueness of role names.
52 */
53 public class UniqueRoleNameValidator extends AbstractStringValidator {
54
55 private static final Logger log = LoggerFactory.getLogger(UniqueRoleNameValidator.class);
56
57 private final SecuritySupport securitySupport;
58 private final Item item;
59
60 public UniqueRoleNameValidator(Item item, String errorMessage, SecuritySupport securitySupport) {
61 super(errorMessage);
62 this.item = item;
63 this.securitySupport = securitySupport;
64 }
65
66 @Override
67 protected boolean isValidValue(String value) {
68 if (item instanceof JcrNodeAdapter) {
69 // If we're editing an existing node then its allowed to use the current username of course
70 if (!(item instanceof JcrNewNodeAdapter)) {
71 try {
72 String currentName = ((JcrNodeAdapter) item).getJcrItem().getName();
73 if (StringUtils.equals(value, currentName)) {
74 return true;
75 }
76 } catch (RepositoryException e) {
77 log.error("Exception occurred getting node name of node [{}]", ((JcrNodeAdapter) item).getItemId(), e);
78 return false;
79 }
80 }
81 final String newRoleName = Path.getValidatedLabel(value);
82 if (securitySupport.getRoleManager().getRole(newRoleName) != null) {
83 // role with such name already exists
84 return false;
85 }
86 return true;
87 }
88 return false;
89 }
90 }