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package org.openslx.satellitedaemon;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.security.KeyFactory;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.cert.CertificateException;
import java.util.Properties;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import org.apache.log4j.Logger;
import org.openslx.satellitedaemon.util.Util;
public class Globals
{
private static Logger log = Logger.getLogger( Globals.class );
private static final Properties properties = new Properties();
private static SSLContext context = null;
public static final int BLOCKSIZE = 16 * 1024 * 1024; // 16 MB blocksize
/***********************************************************************************************/
/**
* A call of Globals.getXXXXXX() returns the corresponding entry in config/global.properties
*/
// * Properties *//
public static String getMasterserverHost()
{
return properties.getProperty( "MASTERSERVER_HOST" );
}
public static String getTruststorePath()
{
return properties.getProperty( "TRUSTSTORE_PATH" );
}
public static String getImageFolder()
{
return properties.getProperty( "IMAGE_FOLDER" );
}
// Integers //
public static int getThriftPort()
{
return tryToParseInt( properties.getProperty( "THRIFT_PORT" ) );
}
/**
* Load properties
*/
static {
InputStreamReader stream = null;
try {
// Load all entries of the config file into properties
stream = new InputStreamReader(
new FileInputStream( "config/global.properties" ), StandardCharsets.UTF_8 );
properties.load( stream );
stream.close();
} catch ( IOException e ) {
log.error( "Could not load global.properties. Exiting." );
System.exit( 2 );
} finally {
Util.streamClose( stream );
}
Util.notNullOrEmptyFatal( getMasterserverHost(), "Masterserver Host must not be empty!" );
Util.notNullOrEmptyFatal( getImageFolder(), "Image Folder must not be empty!" );
}
/***********************************************************************************************/
/**
* Initialize the ssl context used everywhere for outgoing connections.
*
* @return true on success, false on error
*/
public static boolean masterServerSslContextInit()
{
if ( context != null )
return true;
if ( getTruststorePath() == null || getTruststorePath().isEmpty() ) {
try {
context = SSLContext.getDefault();
} catch ( NoSuchAlgorithmException e ) {
log.error( "could not load system default ssl context.", e );
return false;
}
return true;
}
KeyStore keystore;
try {
keystore = KeyStore.getInstance( "JKS" );
keystore.load( new FileInputStream( getTruststorePath() ), null );
TrustManagerFactory tmf = TrustManagerFactory
.getInstance( TrustManagerFactory.getDefaultAlgorithm() );
tmf.init( keystore );
context = SSLContext.getInstance( "SSLv3" );
TrustManager[] trustManagers = tmf.getTrustManagers();
context.init( null, trustManagers, null );
} catch ( FileNotFoundException e ) {
log.error( "Could not find the keystore for the filetransfer. Path was '" +
getTruststorePath() + "'" );
return false;
} catch ( Exception e ) {
log.error( "Could not initialize SSL context.", e );
return false;
}
return true;
}
public static SSLContext getMasterServerSslContext()
{
return context;
}
/**
* Tries to parse an int. Returns 0 on error.
*
* @param s
* The strig to parse
* @return The parsed int or 0 on error
*/
public static int tryToParseInt( String s )
{
try {
return Integer.parseInt( s );
} catch ( NumberFormatException e ) {
return 0;
}
}
}
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