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1   /**
2    * This file Copyright (c) 2014-2018 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.ui.framework.availability;
35  
36  import info.magnolia.cms.security.AccessDeniedException;
37  import info.magnolia.jcr.util.NodeTypes;
38  import info.magnolia.jcr.util.NodeUtil;
39  import info.magnolia.jcr.util.SessionUtil;
40  import info.magnolia.ui.api.availability.AbstractAvailabilityRule;
41  import info.magnolia.ui.vaadin.integration.jcr.JcrItemId;
42  import info.magnolia.ui.vaadin.integration.jcr.JcrPropertyItemId;
43  
44  import javax.jcr.Node;
45  import javax.jcr.RepositoryException;
46  
47  import org.slf4j.Logger;
48  import org.slf4j.LoggerFactory;
49  
50  /**
51   * Returns true if all ancestors of this item are activated, false otherwise.
52   */
53  public class IsPublishableRule extends AbstractAvailabilityRule {
54  
55      private static final Logger log = LoggerFactory.getLogger(IsPublishableRule.class);
56  
57      @Override
58      public boolean isAvailableForItem(Object itemId) {
59          if (itemId instanceof JcrItemId && !(itemId instanceof JcrPropertyItemId)) {
60              JcrItemId jcrItemId = (JcrItemId) itemId;
61              Node node = SessionUtil.getNodeByIdentifier(jcrItemId.getWorkspace(), jcrItemId.getUuid());
62              if (node != null) {
63                  try {
64                      return canBePublished(node);
65                  } catch (RepositoryException e) {
66                      log.warn("Error evaluating availability for node [{}], returning false: {}", NodeUtil.getPathIfPossible(node), e.getMessage());
67                  }
68              }
69          }
70          return false;
71      }
72  
73      private boolean canBePublished(final Node node) throws RepositoryException {
74          int level = node.getDepth();
75  
76          while (level != 0) {
77              try {
78                  Node ancestor = (Node) node.getAncestor(--level);
79                  // this is root
80                  if (ancestor.getDepth() == 0) {
81                      return true;
82                  }
83                  if (!NodeTypes.Activatable.isActivated(ancestor)) {
84                      return false;
85                  }
86              } catch (AccessDeniedException e) {
87                  log.debug("Node {} didn't allow access to ancestors ", node.getIdentifier());
88              }
89          }
90          return true;
91      }
92  }