JcrTenantUtils.java

/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU General Public License, version 2 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/gpl-2.0.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 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.
 *
 *
 * Copyright 2006 - 2013 Pentaho Corporation.  All rights reserved.
 */

package org.pentaho.platform.repository2.unified.jcr;

import org.pentaho.platform.api.engine.IPentahoSession;
import org.pentaho.platform.api.mt.ITenant;
import org.pentaho.platform.api.mt.ITenantedPrincipleNameResolver;
import org.pentaho.platform.api.repository2.unified.RepositoryFile;
import org.pentaho.platform.core.mt.Tenant;
import org.pentaho.platform.engine.core.system.PentahoSessionHolder;
import org.pentaho.platform.engine.core.system.PentahoSystem;
import org.pentaho.platform.engine.core.system.TenantUtils;
import org.pentaho.platform.repository2.unified.ServerRepositoryPaths;

public class JcrTenantUtils {

  private static ITenantedPrincipleNameResolver userNameUtils;
  private static ITenantedPrincipleNameResolver roleNameUtils;
  private static String repositoryAdminUsername;

  public static ITenantedPrincipleNameResolver getUserNameUtils() {
    if ( userNameUtils == null && PentahoSystem.getInitializedOK() ) {
      userNameUtils =
          PentahoSystem.get( ITenantedPrincipleNameResolver.class, "tenantedUserNameUtils", PentahoSessionHolder
              .getSession() );
    }
    return userNameUtils;
  }

  public static ITenantedPrincipleNameResolver getRoleNameUtils() {
    if ( roleNameUtils == null && PentahoSystem.getInitializedOK() ) {
      roleNameUtils =
          PentahoSystem.get( ITenantedPrincipleNameResolver.class, "tenantedRoleNameUtils", PentahoSessionHolder
              .getSession() );
    }
    return roleNameUtils;
  }

  private static String getRepositoryAdminUserName() {

    if ( repositoryAdminUsername == null && PentahoSystem.getInitializedOK() ) {
      repositoryAdminUsername =
          PentahoSystem.get( String.class, "repositoryAdminUsername", PentahoSessionHolder.getSession() );
    }
    return repositoryAdminUsername;
  }

  public static String getTenantedRole( String principal ) {
    if ( principal != null && !principal.equals( "administrators" ) && getRoleNameUtils() != null ) {
      ITenant tenant = getRoleNameUtils().getTenant( principal );
      if ( tenant == null || tenant.getId() == null ) {
        IPentahoSession pentahoSession = PentahoSessionHolder.getSession();
        String tenantId = (String) pentahoSession.getAttribute( IPentahoSession.TENANT_ID_KEY );
        if ( tenantId == null ) {
          tenantId = getDefaultTenantPath();
        }
        tenant = new Tenant( tenantId, true );
        return getRoleNameUtils().getPrincipleId( tenant, principal );
      } else {
        return principal;
      }
    } else {
      return principal;
    }
  }

  public static boolean isTenatedRole( String principal ) {
    if ( principal != null && !principal.equals( "administrators" ) && getRoleNameUtils() != null ) {
      return getRoleNameUtils().isValid( principal );
    } else {
      return false;
    }
  }

  public static String getTenantedUser( String username ) {
    if ( username != null && !username.equals( getRepositoryAdminUserName() ) && getUserNameUtils() != null ) {
      ITenant tenant = getUserNameUtils().getTenant( username );
      if ( tenant == null || tenant.getId() == null ) {
        IPentahoSession pentahoSession = PentahoSessionHolder.getSession();
        String tenantId = (String) pentahoSession.getAttribute( IPentahoSession.TENANT_ID_KEY );
        if ( tenantId == null ) {
          tenantId = getDefaultTenantPath();
        }
        tenant = new Tenant( tenantId, true );
        return getUserNameUtils().getPrincipleId( tenant, username );
      } else {
        return username;
      }
    } else {
      return username;
    }
  }

  public static boolean isTenantedUser( String username ) {
    if ( username != null && !username.equals( getRepositoryAdminUserName() ) && getUserNameUtils() != null ) {
      return getUserNameUtils().isValid( username );
    } else {
      return false;
    }
  }

  public static ITenant getTenant( String principalId, boolean isUser ) {
    ITenant tenant = null;
    ITenantedPrincipleNameResolver nameUtils = isUser ? getUserNameUtils() : getRoleNameUtils();
    if ( nameUtils != null ) {
      tenant = nameUtils.getTenant( principalId );
    }
    if ( tenant == null || tenant.getId() == null || !tenant.getId().startsWith("/") ) {
      tenant = getCurrentTenant();
    }
    if ( tenant == null || tenant.getId() == null ) {
      tenant = getDefaultTenant();
    }
    return tenant;
  }

  public static ITenant getTenant() {
    ITenant tenant = getCurrentTenant();
    if ( tenant == null || tenant.getId() == null ) {
      tenant = getDefaultTenant();
    }
    return tenant;
  }

  public static String getPrincipalName( String principalId, boolean isUser ) {
    String principalName = null;
    ITenantedPrincipleNameResolver nameUtils = isUser ? getUserNameUtils() : getRoleNameUtils();
    if ( nameUtils != null ) {
      principalName = nameUtils.getPrincipleName( principalId );
    }
    return principalName;
  }

  public static ITenant getCurrentTenant() {
    if ( PentahoSessionHolder.getSession() != null ) {
      String tenantId = (String) PentahoSessionHolder.getSession().getAttribute( IPentahoSession.TENANT_ID_KEY );
      return tenantId != null ? new Tenant( tenantId, true ) : null;
    } else
      return null;
  }

  public static String getDefaultTenantPath() {
    return ServerRepositoryPaths.getPentahoRootFolderPath() + RepositoryFile.SEPARATOR
        + TenantUtils.TENANTID_SINGLE_TENANT;
  }

  public static ITenant getDefaultTenant() {
    return new Tenant( getDefaultTenantPath(), true );
  }
}