1 files changed, 175 insertions, 0 deletions
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/KeyStoreUtils.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/KeyStoreUtils.java
new file mode 100644
index 00000000..3583a294
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/KeyStoreUtils.java
@@ -0,0 +1,175 @@
+/*******************************************************************************
+ *******************************************************************************/
+
+
+package at.gv.egiz.eaaf.core.impl.utils;
+
+import java.io.BufferedInputStream;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.security.GeneralSecurityException;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateFactory;
+
+/**
+ * Utility for creating and loading key stores.
+ * 
+ * @author Paul Ivancsics
+ * @version $Id$
+ */
+public class KeyStoreUtils {
+	
+	/**
+	 * JAVA KeyStore
+	 */
+	private static final String KEYSTORE_TYPE_JKS = "JKS";
+	
+	/**
+	 * PKCS12 KeyStore
+	 */
+	private static final String KEYSTORE_TYPE_PKCS12 = "PKCS12";
+	
+	
+
+  /**
+   * Loads a key store from file.
+   * 
+   * @param keystoreType key store type
+   * @param urlString URL of key store
+   * @param password password protecting the key store
+   * @return key store loaded
+   * @throws IOException thrown while reading the key store from file
+   * @throws GeneralSecurityException thrown while creating the key store
+   */
+  public static KeyStore loadKeyStore(
+    String keystoreType,
+    String urlString,
+    String password)
+    throws IOException, GeneralSecurityException {
+
+    URL keystoreURL = new URL(urlString);
+    InputStream in = keystoreURL.openStream();
+    return loadKeyStore(keystoreType, in, password);
+  }
+  /**
+   * Loads a key store from an <code>InputStream</code>, and
+   * closes the <code>InputStream</code>.
+   * 
+   * @param keystoreType key store type
+   * @param in input stream
+   * @param password password protecting the key store
+   * @return key store loaded
+   * @throws IOException thrown while reading the key store from the stream
+   * @throws GeneralSecurityException thrown while creating the key store
+   */
+  public static KeyStore loadKeyStore(
+    String keystoreType,
+    InputStream in,
+    String password)
+    throws IOException, GeneralSecurityException {
+
+    char[] chPassword = null;
+    if (password != null)
+      chPassword = password.toCharArray();
+    KeyStore ks = KeyStore.getInstance(keystoreType);
+    ks.load(in, chPassword);
+    in.close();
+    return ks;
+  }
+  /**
+   * Creates a key store from X509 certificate files, aliasing them with
+   * the index in the <code>String[]</code>, starting with <code>"0"</code>.
+   * 
+   * @param keyStoreType key store type
+   * @param certFilenames certificate filenames
+   * @return key store created
+   * @throws IOException thrown while reading the certificates from file
+   * @throws GeneralSecurityException thrown while creating the key store
+   */
+  public static KeyStore createKeyStore(
+    String keyStoreType,
+    String[] certFilenames)
+    throws IOException, GeneralSecurityException {
+
+    KeyStore ks = KeyStore.getInstance(keyStoreType);
+    ks.load(null, null);
+    for (int i = 0; i < certFilenames.length; i++) {
+      Certificate cert = loadCertificate(certFilenames[i]);
+      ks.setCertificateEntry("" + i, cert);
+    }
+    return ks;
+  }
+
+  /**
+   * Loads an X509 certificate from file.
+   * @param certFilename filename
+   * @return the certificate loaded
+   * @throws IOException thrown while reading the certificate from file
+   * @throws GeneralSecurityException thrown while creating the certificate
+   */
+  private static Certificate loadCertificate(String certFilename)
+    throws IOException, GeneralSecurityException {
+
+    FileInputStream in = new FileInputStream(certFilename);
+    CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
+    Certificate cert = certFactory.generateCertificate(in);
+    in.close();
+    return cert;
+  }
+  
+ 
+	/**
+	 * Loads a keyStore without knowing the keyStore type
+	 * @param keyStorePath URL to the keyStore
+	 * @param password Password protecting the keyStore
+	 * @return keyStore loaded
+	 * @throws KeyStoreException thrown if keyStore cannot be loaded
+	 * @throws FileNotFoundException 
+	 * @throws IOException 
+	 */
+  public static KeyStore loadKeyStore(String keyStorePath, String password) throws KeyStoreException, IOException{
+		
+		//InputStream is = new FileInputStream(keyStorePath);
+	  	URL keystoreURL = new URL(keyStorePath);
+	    InputStream in = keystoreURL.openStream();
+		InputStream isBuffered = new BufferedInputStream(in);				
+		return loadKeyStore(isBuffered, password);
+		
+	}
+	
+	/**
+	 * Loads a keyStore without knowing the keyStore type
+	 * @param in input stream
+	 * @param password Password protecting the keyStore
+	 * @return keyStore loaded
+	 * @throws KeyStoreException thrown if keyStore cannot be loaded
+	 * @throws FileNotFoundException 
+	 * @throws IOException 
+	 */
+public static KeyStore loadKeyStore(InputStream is, String password) throws KeyStoreException, IOException{		
+		is.mark(1024*1024);
+		KeyStore ks = null;
+		try {
+			try {				
+				ks = loadKeyStore(KEYSTORE_TYPE_PKCS12, is, password);
+			} catch (IOException e2) {
+				is.reset();				
+				ks = loadKeyStore(KEYSTORE_TYPE_JKS, is, password);
+			}
+		} catch(Exception e) {			
+			e.printStackTrace();
+
+		}
+		return ks;	
+						
+	}
+  
+	
+
+
+}