PEMFiles.java

package com.eucalyptus.auth.util;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.security.cert.X509Certificate;
import org.apache.log4j.Logger;
import org.bouncycastle.openssl.PEMReader;
import org.bouncycastle.openssl.PEMWriter;
import com.eucalyptus.records.EventType;
import com.eucalyptus.records.EventRecord;

public class PEMFiles {
  private static Logger LOG = Logger.getLogger( PEMFiles.class );
  public static void write( final String fileName, final Object securityToken ) {
    PEMWriter privOut = null;
    try {
      privOut = new PEMWriter( new FileWriter( fileName ) );
      EventRecord.caller( PEMFiles.class, EventType.CERTIFICATE_WRITE, fileName ).info( );
      privOut.writeObject( securityToken );
      privOut.close( );
    } catch ( final IOException e ) {
      LOG.error( e, e );
    }
  }

  public static byte[] getBytes( final Object o ) {
    PEMWriter pemOut;
    ByteArrayOutputStream pemByteOut = new ByteArrayOutputStream( );
    try {
      pemOut = new PEMWriter( new OutputStreamWriter( pemByteOut ) );
      pemOut.writeObject( o );
      pemOut.close( );
    } catch ( IOException e ) {
      LOG.error( e, e );//this can never happen
    }
    return pemByteOut.toByteArray( );
  }

  public static X509Certificate getCert( final byte[] o ) {
    X509Certificate x509 = null;
    PEMReader in = null;
    ByteArrayInputStream pemByteIn = new ByteArrayInputStream( o );
    in = new PEMReader( new InputStreamReader( pemByteIn ) );
    try {
      x509 = ( X509Certificate ) in.readObject( );
    } catch ( IOException e ) {
      LOG.error( e, e );//this can never happen
    }
    return x509;
  }

}