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.security.Group;
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 java.util.Collection;
42
43 import javax.jcr.RepositoryException;
44
45 import org.apache.commons.lang3.StringUtils;
46 import org.slf4j.Logger;
47 import org.slf4j.LoggerFactory;
48
49 import com.vaadin.v7.data.Item;
50 import com.vaadin.v7.data.validator.AbstractStringValidator;
51
52 /**
53 * Validator to ensure that new group name is does not exist in the system yet.
54 */
55 public class UniqueGroupNameValidator extends AbstractStringValidator {
56
57 private static final Logger log = LoggerFactory.getLogger(UniqueGroupNameValidator.class);
58
59 private final SecuritySupport securitySupport;
60 private final Item item;
61
62 public UniqueGroupNameValidator(Item item, String errorMessage, SecuritySupport securitySupport) {
63 super(errorMessage);
64 this.item = item;
65 this.securitySupport = securitySupport;
66 }
67
68 @Override
69 protected boolean isValidValue(String value) {
70 if (item instanceof JcrNodeAdapter) {
71 // If we're editing an existing node then its allowed to use the current username of course
72 if (!(item instanceof JcrNewNodeAdapter)) {
73 try {
74 String currentName = ((JcrNodeAdapter)item).getJcrItem().getName();
75 if (StringUtils.equals(value, currentName)) {
76 return true;
77 }
78 } catch (RepositoryException e) {
79 log.error("Exception occurred getting node name of node [{}]", ((JcrNodeAdapter) item).getItemId(), e);
80 return false;
81 }
82 }
83 // get all existing groups
84 Collection<Group> groups = securitySupport.getGroupManager().getAllGroups();
85 for (Group g : groups) {
86 // if there is any group with the same name, the value is invalid
87 if (g.getName().equals(value)) {
88 return false;
89 }
90 }
91 // no group with the same name found, value is valid
92 return true;
93 }
94 return false;
95 }
96 }