1 files changed, 107 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/satellitedaemon/Identity.java b/src/main/java/org/openslx/satellitedaemon/Identity.java
new file mode 100644
index 0000000..b8ed1ee
--- /dev/null
+++ b/src/main/java/org/openslx/satellitedaemon/Identity.java
@@ -0,0 +1,107 @@
+package org.openslx.satellitedaemon;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.math.BigInteger;
+import java.nio.charset.StandardCharsets;
+import java.security.NoSuchAlgorithmException;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.spec.InvalidKeySpecException;
+import java.util.Properties;
+
+import org.apache.log4j.Logger;
+import org.openslx.satellitedaemon.util.Util;
+
+public class Identity
+{
+	private static Logger log = Logger.getLogger( Identity.class );
+	private static final Properties properties = new Properties();
+
+	private static BigInteger mod = null;
+	private static BigInteger privExp = null;
+	private static BigInteger pubExp = null;
+
+	public static String getOrganizationName()
+	{
+		return properties.getProperty( "ORGANIZATION_NAME" );
+	}
+
+	public static BigInteger getModulus()
+	{
+		String privateModulus = properties.getProperty( "MODULUS" );
+		mod = new BigInteger( privateModulus );
+		return mod;
+	}
+
+	public static BigInteger getPublicExponent()
+	{
+		String publicModulus = properties.getProperty( "PUBLIC_EXPONENT" );
+		pubExp = new BigInteger( publicModulus );
+		return pubExp;
+	}
+
+	public static BigInteger getPrivateExponent()
+	{
+		String exponent = properties.getProperty( "PRIVATE_EXPONENT" );
+		privExp = new BigInteger( exponent );
+		return privExp;
+	}
+
+	/**
+	 * Load properties
+	 */
+	static {
+		try {
+			// Load all entries of the config file into properties
+			InputStreamReader stream = new InputStreamReader(
+					new FileInputStream( "config/identity.properties" ), StandardCharsets.UTF_8 );
+			properties.load( stream );
+			stream.close();
+		} catch ( IOException e ) {
+			log.error( "Could not load properties. Exiting." );
+			System.exit( 2 );
+		}
+		
+		Util.notNullOrEmptyFatal( getOrganizationName(), "Organiziation Name must not be empty!" );
+	}
+
+	/**
+	 * Get private key for this server. If none exists yet, create a new one.
+	 * 
+	 * @return
+	 */
+	public static PrivateKey getPrivateKey()
+	{
+		AsymKeyHolder akh;
+		try {
+			akh = new AsymKeyHolder( privExp, null, mod );
+			return akh.getPrivateKey();
+		} catch ( InvalidKeySpecException e ) {
+			log.error( "InvalidKeySpecException", e );
+		} catch ( NoSuchAlgorithmException e ) {
+			log.error( "NoSuchAlgorithmException", e );
+		}
+		return null;
+	}
+
+	/**
+	 * Get public key for this server. If none exists yet, create a new one.
+	 * 
+	 * @return
+	 */
+	public static PublicKey getPublicKey()
+	{
+		AsymKeyHolder akh;
+		try {
+			akh = new AsymKeyHolder( null, pubExp, mod );
+			return akh.getPublicKey();
+		} catch ( InvalidKeySpecException e ) {
+			log.error( "InvalidKeySpecException", e );
+		} catch ( NoSuchAlgorithmException e ) {
+			log.error( "NoSuchAlgorithmException", e );
+		}
+		return null;
+	}
+}