/*******************************************************************************
*Copyright (c) 2009  Eucalyptus Systems, Inc.
* 
*  This program is free software: you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation, only version 3 of the License.
* 
* 
*  This file 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/>.
* 
*  Please contact Eucalyptus Systems, Inc., 130 Castilian
*  Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
*  if you need additional information or have any questions.
* 
*  This file may incorporate work covered under the following copyright and
*  permission notice:
* 
*    Software License Agreement (BSD License)
* 
*    Copyright (c) 2008, Regents of the University of California
*    All rights reserved.
* 
*    Redistribution and use of this software in source and binary forms, with
*    or without modification, are permitted provided that the following
*    conditions are met:
* 
*      Redistributions of source code must retain the above copyright notice,
*      this list of conditions and the following disclaimer.
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*    IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
*    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
*    PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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*    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
*    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
*    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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*    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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*    THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
*    LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
*    SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
*    IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
*    BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
*    THE REGENTS’ DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
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*******************************************************************************/
/*
 * Author: chris grzegorczyk <grze@eucalyptus.com>
 */
package com.eucalyptus.auth;

import org.apache.log4j.Logger;
import com.eucalyptus.auth.crypto.Hmacs;
import com.eucalyptus.auth.util.EucaKeyStore;
import com.eucalyptus.bootstrap.Bootstrap;
import com.eucalyptus.bootstrap.Bootstrapper;
import com.eucalyptus.bootstrap.Component;
import com.eucalyptus.bootstrap.DependsRemote;
import com.eucalyptus.bootstrap.Provides;
import com.eucalyptus.bootstrap.RunDuring;
import com.eucalyptus.bootstrap.Bootstrap.Stage;

@Provides(Component.bootstrap)
@RunDuring(Bootstrap.Stage.SystemCredentialsInit)
@DependsRemote(Component.eucalyptus)
public class RemoteComponentCredentialBootstrapper extends Bootstrapper {
  private static Logger LOG = Logger.getLogger( RemoteComponentCredentialBootstrapper.class );

  @Override
  public boolean load( Stage current ) throws Exception {
    while ( !this.checkAllKeys( ) ) {
      LOG.fatal( "Waiting for system credentials before proceeding with startup..." );
      try {
        Thread.sleep( 2000 );
      } catch ( Exception e ) {
      }
    }
    for ( Component c : Component.values( ) ) {
      LOG.info( "Initializing system credentials for " + c.name( ) );
      SystemCredentialProvider.init( c );
    }
    return true;
  }

  private boolean checkAllKeys( ) {
    for ( Component c : Component.values( ) ) {
      if ( !Component.any.equals( c ) && c.isEnabled( ) ) {
        try {
          if( !EucaKeyStore.getCleanInstance( ).containsEntry( c.name( ) ) ) {
            return false;
          }
        } catch ( Exception e ) {
          return false;
        }
      }
    }
    return true;
  }

  @Override
  public boolean start( ) throws Exception {
    return true;
  }

}