/**
    * This file Copyright (c) 2011-2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.setup;
  
  import info.magnolia.cms.core.Content;
  import info.magnolia.cms.security.SecurityUtil;
  import info.magnolia.jcr.util.NodeTypes;
  import info.magnolia.module.InstallContext;
  import info.magnolia.module.delta.AllChildrenNodesOperation;
  import info.magnolia.module.delta.TaskExecutionException;
  import info.magnolia.repository.RepositoryConstants;
  
  import java.io.UnsupportedEncodingException;
  
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.codec.binary.Base64;
  import org.apache.commons.lang3.StringUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Task to encrypt base64 encoded passwords. Will skip all non-base64 entries.
   *
   * @deprecated since 5.6.
   */
  @Deprecated
  public final class HashUsersPasswords extends AllChildrenNodesOperation {
  
      private static final Logger log = LoggerFactory.getLogger(HashUsersPasswords.class);
  
      private static final Content.ContentFilter filter = new Content.ContentFilter() {
  
          @Override
          public boolean accept(Content content) {
              String type;
              try {
                  type = content.getNodeTypeName();
              } catch (RepositoryException e) {
                  return false;
              }
              return NodeTypes.Folder.NAME.equals(type) || NodeTypes.User.NAME.equals(type);
          }
      };
  
      public HashUsersPasswords(String name, String description, String repositoryName, String parentNodePath) {
          super(name, description, repositoryName, parentNodePath, filter);
      }
  
      public HashUsersPasswords() {
          this("/");
      }
  
      public HashUsersPasswords(String path) {
          this("Hash Passwords", "Hash all user passwords", RepositoryConstants.USERS, path);
      }
  
      @Override
      protected void operateOnChildNode(Content node, InstallContext ctx) throws RepositoryException, TaskExecutionException {
          if (NodeTypes.User.NAME.equals(node.getNodeTypeName())) {
              String encodedPassword = node.getNodeData("pswd").getString();
  
              if (StringUtils.isNotBlank(encodedPassword)) {
                  byte[] pwdBytes;
                  try {
                      pwdBytes = encodedPassword.getBytes("UTF-8");
                  } catch (UnsupportedEncodingException e) {
                      String message = node.getName() + " password could not be hashed. User might need to reset the password before logging again.";
                     log.warn(message);
                     ctx.warn(message);
                     pwdBytes = encodedPassword.getBytes();
                 }
                 if (Base64.isArrayByteBase64(pwdBytes)) {
                     String pwd = new String(Base64.decodeBase64(pwdBytes));
                     String hashedPwd = SecurityUtil.getBCrypt(pwd);
                     node.setNodeData("pswd", hashedPwd);
                 }
             }
         } else {
             // AllChildrennodeOp is not recursive!
             for (Content child : node.getChildren(filter)) {
                 operateOnChildNode(child, ctx);
             }
         }
     }
 }