From 1bb7917efc9747d1dc05970513a5ea673835a8c9 Mon Sep 17 00:00:00 2001
From: Björn Hagemeister
Date: Wed, 15 Oct 2014 15:42:58 +0200
Subject: Implemented --importId command line option and adapted TODO.txt.

---
 TODO.txt                                           |  2 +-
 src/main/java/org/openslx/satellitedaemon/App.java | 19 +++++-----
 .../java/org/openslx/satellitedaemon/Identity.java | 42 +++++++++++++++++++++-
 3 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/TODO.txt b/TODO.txt
index b8fa8fe..5622586 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -17,7 +17,7 @@ Befehlszeilenoptionen:
    generiert ein neues Schlüsselpaar. Alles in die identity.properties speichern
    und bei Erfolg System.exit(0), sonst >0.
 
-[ ] * Option --import <ORGANAME> <MODULUS> <PRIV_EXP> <PUB_EXP>
+[x] * Option --import <ORGANAME> <MODULUS> <PRIV_EXP> <PUB_EXP>
    Die Übergebene Identity in identity.properties speichern. Dabei sollte auch
    überprüft werden, ob es sich um ein gültiges Schlüsselpaar handelt. Wenn alles
    klappt. wieder exit(0), sonst >0.
diff --git a/src/main/java/org/openslx/satellitedaemon/App.java b/src/main/java/org/openslx/satellitedaemon/App.java
index 34d61ed..b413280 100644
--- a/src/main/java/org/openslx/satellitedaemon/App.java
+++ b/src/main/java/org/openslx/satellitedaemon/App.java
@@ -27,7 +27,7 @@ public class App
 		int i = 0;
 		String arg;
 		String organizationName;
-		String modulus, privExp, pubExp;
+		BigInteger modulus, privExp, pubExp;
 		String ipAddress;
 
 		// Check if there are arguments available and if they start with "--".
@@ -57,9 +57,9 @@ public class App
 					System.exit( 2 );
 				} else {
 					organizationName = args[i++];
-					modulus = args[i++];
-					privExp = args[i++];
-					pubExp = args[i++];
+					modulus = new BigInteger( args[i++] );
+					privExp = new BigInteger( args[i++] );
+					pubExp = new BigInteger( args[i++] );
 					if ( importId( organizationName, modulus, privExp, pubExp ) ) {
 						System.exit( 0 );
 					} else
@@ -122,15 +122,14 @@ public class App
 
 	private static boolean genId( String organizationName )
 	{
-		if ( Identity.generateIdentity( organizationName ) )
-			return true;
-		return false;
+		return Identity.generateIdentity( organizationName );
 	}
 
-	private static boolean importId( String organizationName, String modulus, String privExp, String pubExp )
+	private static boolean importId( String organizationName, BigInteger modulus, BigInteger privExp, BigInteger pubExp )
 	{
-		// TODO.
-		return false;
+		if ( !Identity.isValidKeyPair( modulus, privExp, pubExp ) )
+			return false;
+		return Identity.importIdentity( organizationName, modulus, privExp, pubExp );
 	}
 
 	private static boolean submitKey( String ipAddress )
diff --git a/src/main/java/org/openslx/satellitedaemon/Identity.java b/src/main/java/org/openslx/satellitedaemon/Identity.java
index 6e5c877..ce6b753 100644
--- a/src/main/java/org/openslx/satellitedaemon/Identity.java
+++ b/src/main/java/org/openslx/satellitedaemon/Identity.java
@@ -147,6 +147,13 @@ public class Identity
 		return isPassed;
 	}
 
+	/**
+	 * Generate new identity with given organization name and new key pair.
+	 * Write new identity to "config/identity.properties".
+	 * 
+	 * @param organizationName
+	 * @return true, if successful.
+	 */
 	public static boolean generateIdentity( String organizationName )
 	{
 		Identity.organizationName = organizationName;
@@ -163,6 +170,39 @@ public class Identity
 				Identity.pubExponent );
 	}
 
+	/**
+	 * Import given identity with organization name, modulus, private and public
+	 * exponent and store this identity to "config/identity.properties".
+	 * 
+	 * @param organizationName
+	 * @param modulus
+	 * @param privateExp
+	 * @param publicExp
+	 * @return true, if successful.
+	 */
+	public static boolean importIdentity( String organizationName, BigInteger modulus, BigInteger privateExp, BigInteger publicExp )
+	{
+		Identity.organizationName = organizationName;
+		Identity.modulus = modulus;
+		Identity.privExponent = privateExp;
+		Identity.pubExponent = publicExp;
+		return writeIdToFile(
+				Identity.organizationName,
+				Identity.modulus,
+				Identity.privExponent,
+				Identity.pubExponent );
+	}
+
+	/**
+	 * Write given organization name, modulus, public and private exponent to
+	 * "config/identity.properties".
+	 * 
+	 * @param organizationName
+	 * @param modulus
+	 * @param privateExp
+	 * @param publicExp
+	 * @return true, if successful.
+	 */
 	private static boolean writeIdToFile( String organizationName, BigInteger modulus, BigInteger privateExp, BigInteger publicExp )
 	{
 		File configFile = new File( "config/identity.properties" );
@@ -173,7 +213,7 @@ public class Identity
 			log.error( "FileNotFoundException", e );
 			return false;
 		}
-		
+
 		// create strings for writing to file. 
 		String orgNameString = "ORGANIZATION_NAME=" + organizationName + "\n";
 		String modString = "MODULUS=" + modulus.toString() + "\n";
-- 
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