android: Add KeyStoreSpi implementation that uses LocalCertificateStore

diff --git a/src/frontends/android/src/org/strongswan/android/security/LocalCertificateKeyStoreSpi.java b/src/frontends/android/src/org/strongswan/android/security/LocalCertificateKeyStoreSpi.java
new file mode 100644 (file)
index 0000000..64a48a9
--- /dev/null
+++ b/src/frontends/android/src/org/strongswan/android/security/LocalCertificateKeyStoreSpi.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2014 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+package org.strongswan.android.security;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.security.Key;
+import java.security.KeyStoreException;
+import java.security.KeyStoreSpi;
+import java.security.NoSuchAlgorithmException;
+import java.security.UnrecoverableKeyException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+import java.util.Collections;
+import java.util.Date;
+import java.util.Enumeration;
+
+public class LocalCertificateKeyStoreSpi extends KeyStoreSpi
+{
+       private final LocalCertificateStore mStore = new LocalCertificateStore();
+
+       @Override
+       public Key engineGetKey(String alias, char[] password) throws NoSuchAlgorithmException, UnrecoverableKeyException
+       {
+               return null;
+       }
+
+       @Override
+       public Certificate[] engineGetCertificateChain(String alias)
+       {
+               return null;
+       }
+
+       @Override
+       public Certificate engineGetCertificate(String alias)
+       {
+               return mStore.getCertificate(alias);
+       }
+
+       @Override
+       public Date engineGetCreationDate(String alias)
+       {
+               return mStore.getCreationDate(alias);
+       }
+
+       @Override
+       public void engineSetKeyEntry(String alias, Key key, char[] password, Certificate[] chain) throws KeyStoreException
+       {
+               throw new UnsupportedOperationException();
+       }
+
+       @Override
+       public void engineSetKeyEntry(String alias, byte[] key, Certificate[] chain) throws KeyStoreException
+       {
+               throw new UnsupportedOperationException();
+       }
+
+       @Override
+       public void engineSetCertificateEntry(String alias, Certificate cert) throws KeyStoreException
+       {
+               /* we ignore the given alias as the store calculates it on its own,
+                * duplicates are replaced */
+               if (!mStore.addCertificate(cert))
+               {
+                       throw new KeyStoreException();
+               }
+       }
+
+       @Override
+       public void engineDeleteEntry(String alias) throws KeyStoreException
+       {
+               mStore.deleteCertificate(alias);
+       }
+
+       @Override
+       public Enumeration<String> engineAliases()
+       {
+               return Collections.enumeration(mStore.aliases());
+       }
+
+       @Override
+       public boolean engineContainsAlias(String alias)
+       {
+               return mStore.containsAlias(alias);
+       }
+
+       @Override
+       public int engineSize()
+       {
+               return mStore.aliases().size();
+       }
+
+       @Override
+       public boolean engineIsKeyEntry(String alias)
+       {
+               return false;
+       }
+
+       @Override
+       public boolean engineIsCertificateEntry(String alias)
+       {
+               return engineContainsAlias(alias);
+       }
+
+       @Override
+       public String engineGetCertificateAlias(Certificate cert)
+       {
+               return mStore.getCertificateAlias(cert);
+       }
+
+       @Override
+       public void engineStore(OutputStream stream, char[] password) throws IOException, NoSuchAlgorithmException, CertificateException
+       {
+               throw new UnsupportedOperationException();
+       }
+
+       @Override
+       public void engineLoad(InputStream stream, char[] password) throws IOException, NoSuchAlgorithmException, CertificateException
+       {
+               if (stream != null)
+               {
+                       throw new UnsupportedOperationException();
+               }
+       }
+}