android: Allow selection of local certificates

src/frontends/android/res/values-de/strings.xml

@@ -78,6 +78,7 @@
     <string name="no_certificates">Keine Zertifikate</string>
     <string name="system_tab">System</string>
     <string name="user_tab">Benutzer</string>
+    <string name="local_tab">Importiert</string>
 
     <!-- VPN state fragment -->
     <string name="state_label">Status:</string>

src/frontends/android/res/values-pl/strings.xml

@@ -78,6 +78,7 @@
     <string name="no_certificates">Brak certyfikatów</string>
     <string name="system_tab">System</string>
     <string name="user_tab">Użytkownik</string>
+    <string name="local_tab">Imported</string>
 
     <!-- VPN state fragment -->
     <string name="state_label">Status:</string>

src/frontends/android/res/values-ru/strings.xml

@@ -75,6 +75,7 @@
     <string name="no_certificates">Нет доступных сертификатов</string>
     <string name="system_tab">Система</string>
     <string name="user_tab">Пользователь</string>
+    <string name="local_tab">Imported</string>
 
     <!-- VPN state fragment -->
     <string name="state_label">Статус:</string>

src/frontends/android/res/values-ua/strings.xml

@@ -76,6 +76,7 @@
     <string name="no_certificates">Немає сертифікатів</string>
     <string name="system_tab">Система</string>
     <string name="user_tab">Користувач</string>
+    <string name="local_tab">Imported</string>
 
     <!-- VPN state fragment -->
     <string name="state_label">Статус:</string>

src/frontends/android/res/values/strings.xml

@@ -78,6 +78,7 @@
     <string name="no_certificates">No certificates</string>
     <string name="system_tab">System</string>
     <string name="user_tab">User</string>
+    <string name="local_tab">Imported</string>
 
     <!-- VPN state fragment -->
     <string name="state_label">Status:</string>

src/frontends/android/src/org/strongswan/android/ui/TrustedCertificateListFragment.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Tobias Brunner
+ * Copyright (C) 2012-2014 Tobias Brunner
  * Hochschule fuer Technik Rapperswil
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -46,9 +46,10 @@ import android.widget.SearchView.OnQueryTextListener;
 
 public class TrustedCertificateListFragment extends ListFragment implements LoaderCallbacks<List<TrustedCertificateEntry>>, OnQueryTextListener
 {
+	public static final String EXTRA_CERTIFICATE_SOURCE = "certificate_source";
 	private OnTrustedCertificateSelectedListener mListener;
 	private TrustedCertificateAdapter mAdapter;
-	private boolean mUser;
+	private TrustedCertificateSource mSource = TrustedCertificateSource.SYSTEM;
 
 	/**
 	 * The activity containing this fragment should implement this interface
@@ -70,8 +71,11 @@ public class TrustedCertificateListFragment extends ListFragment implements Load
 
 		setListShown(false);
 
-		/* non empty arguments mean we list user certificate */
-		mUser = getArguments() != null;
+		Bundle arguments = getArguments();
+		if (arguments != null)
+		{
+			mSource = (TrustedCertificateSource)arguments.getSerializable(EXTRA_CERTIFICATE_SOURCE);
+		}
 
 		getLoaderManager().initLoader(0, null, this);
 	}
@@ -122,7 +126,7 @@ public class TrustedCertificateListFragment extends ListFragment implements Load
 	@Override
 	public Loader<List<TrustedCertificateEntry>> onCreateLoader(int id, Bundle args)
 	{	/* we don't need the id as we have only one loader */
-		return new CertificateListLoader(getActivity(), mUser);
+		return new CertificateListLoader(getActivity(), mSource);
 	}
 
 	@Override
@@ -158,22 +162,21 @@ public class TrustedCertificateListFragment extends ListFragment implements Load
 	public static class CertificateListLoader extends AsyncTaskLoader<List<TrustedCertificateEntry>>
 	{
 		private List<TrustedCertificateEntry> mData;
-		private final boolean mUser;
+		private final TrustedCertificateSource mSource;
 
-		public CertificateListLoader(Context context, boolean user)
+		public CertificateListLoader(Context context, TrustedCertificateSource source)
 		{
 			super(context);
-			mUser = user;
+			mSource = source;
 		}
 
 		@Override
 		public List<TrustedCertificateEntry> loadInBackground()
 		{
 			TrustedCertificateManager certman = TrustedCertificateManager.getInstance().load();
-			Hashtable<String,X509Certificate> certificates;
+			Hashtable<String,X509Certificate> certificates = certman.getCACertificates(mSource);
 			List<TrustedCertificateEntry> selected;
 
-			certificates = mUser ? certman.getCACertificates(TrustedCertificateSource.USER) : certman.getCACertificates(TrustedCertificateSource.SYSTEM);
 			selected = new ArrayList<TrustedCertificateEntry>();
 			for (Entry<String, X509Certificate> entry : certificates.entrySet())
 			{

src/frontends/android/src/org/strongswan/android/ui/TrustedCertificatesActivity.java

@@ -17,6 +17,7 @@ package org.strongswan.android.ui;
 
 import org.strongswan.android.R;
 import org.strongswan.android.data.VpnProfileDataSource;
+import org.strongswan.android.logic.TrustedCertificateManager.TrustedCertificateSource;
 import org.strongswan.android.security.TrustedCertificateEntry;
 
 import android.app.ActionBar;
@@ -43,11 +44,15 @@ public class TrustedCertificatesActivity extends Activity implements TrustedCert
 		actionBar.addTab(actionBar
 			.newTab()
 			.setText(R.string.system_tab)
-			.setTabListener(new TrustedCertificatesTabListener(this, "system", false)));
+			.setTabListener(new TrustedCertificatesTabListener(this, "system", TrustedCertificateSource.SYSTEM)));
 		actionBar.addTab(actionBar
 			.newTab()
 			.setText(R.string.user_tab)
-			.setTabListener(new TrustedCertificatesTabListener(this, "user", true)));
+			.setTabListener(new TrustedCertificatesTabListener(this, "user", TrustedCertificateSource.USER)));
+		actionBar.addTab(actionBar
+			.newTab()
+			.setText(R.string.local_tab)
+			.setTabListener(new TrustedCertificatesTabListener(this, "local", TrustedCertificateSource.LOCAL)));
 
 		if (savedInstanceState != null)
 		{
@@ -87,13 +92,13 @@ public class TrustedCertificatesActivity extends Activity implements TrustedCert
 	public static class TrustedCertificatesTabListener implements ActionBar.TabListener
 	{
 		private final String mTag;
-		private final boolean mUser;
+		private final TrustedCertificateSource mSource;
 		private Fragment mFragment;
 
-		public TrustedCertificatesTabListener(Activity activity, String tag, boolean user)
+		public TrustedCertificatesTabListener(Activity activity, String tag, TrustedCertificateSource source)
 		{
 			mTag = tag;
-			mUser = user;
+			mSource = source;
 			/* check to see if we already have a fragment for this tab, probably
 			 * from a previously saved state. if so, deactivate it, because the
 			 * initial state is that no tab is shown */
@@ -112,10 +117,9 @@ public class TrustedCertificatesActivity extends Activity implements TrustedCert
 			if (mFragment == null)
 			{
 				mFragment = new TrustedCertificateListFragment();
-				if (mUser)
-				{	/* use non empty arguments to indicate this */
-					mFragment.setArguments(new Bundle());
-				}
+				Bundle args = new Bundle();
+				args.putSerializable(TrustedCertificateListFragment.EXTRA_CERTIFICATE_SOURCE, mSource);
+				mFragment.setArguments(args);
 				ft.add(android.R.id.content, mFragment, mTag);
 			}
 			else