/*
    * Copyright (C) 2003-2007 eXo Platform SAS.
    *
    * This program is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Affero General Public License
    * as published by the Free Software Foundation; either version 3
    * of the License, or (at your option) any later version.
    *
    * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, see<http://www.gnu.org/licenses/>.
   */
  package org.exoplatform.ecm.webui.form.validator;
  
  import org.exoplatform.services.organization.OrganizationService;
  import org.exoplatform.services.wcm.utils.WCMCoreUtils;
  import org.exoplatform.web.application.ApplicationMessage;
  import org.exoplatform.webui.exception.MessageException;
  import org.exoplatform.webui.form.UIFormInput;
  import org.exoplatform.webui.form.validator.Validator;
  
  /**
   * Created by The eXo Platform SEA
   * Author : Ha Quang Tan
   *          tanhq@exoplatform.com
   * May 16, 2011 4:52:44 PM
   */
  
  public class PermissionValidator implements Validator {
    public void validate(UIFormInput uiInput) throws Exception {
      if (uiInput.getValue() == null || ((String) uiInput.getValue()).trim().length() == 0
          || ((String) uiInput.getValue()).trim().equals("*"))
        return;
      String permissions = ((String) uiInput.getValue()).trim();
  
      OrganizationService oservice = WCMCoreUtils.getService(OrganizationService.class);
      String[] arrPermissions = permissions.split(",");
      for (String itemPermission : arrPermissions) {
        if (itemPermission.length() == 0) {
          Object[] args = { itemPermission };
          throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                            args));
        }
        if (itemPermission.equals("*"))
          continue;
        else if (itemPermission.contains(":")) {
          String[] permission = itemPermission.split(":");
          if ((permission[0] == null) || (permission[0].length() == 0)) {
            Object[] args = { itemPermission };
            throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                              args));
          } else if (!permission[0].equals("*") && (oservice.getMembershipTypeHandler().findMembershipType(permission[0]) == null)) {
            Object[] args = { itemPermission };
            throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                              args));
          }
          if ((permission[1] == null) || (permission[1].length() == 0)) {
            Object[] args = { itemPermission };
            throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                              args));
          } else if (oservice.getGroupHandler().findGroupById(permission[1]) == null) {
            Object[] args = { itemPermission };
            throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                              args));
          }
        } else {
          Object[] args = { itemPermission };
          throw new MessageException(new ApplicationMessage("PermissionValidator.msg.permission-path-invalid",
                                                            args));
        }
      }
    }
  }