From 4bfeb3b000315d8a821e5ab5b109ecc969c58241 Mon Sep 17 00:00:00 2001
From: Markus Pfeiffer <markus.pfeiffer@relution.io>
Date: Tue, 21 Nov 2023 15:37:21 +0100
Subject: [PATCH] android: Add data source for managed VPN profiles

Include the managed VPN profile data source in the profile source,
to show profiles from both sources in the UI.
---
 .../data/VpnProfileManagedDataSource.java     | 118 ++++++++++++++++++
 .../android/data/VpnProfileSource.java        |   2 +
 2 files changed, 120 insertions(+)
 create mode 100644 src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileManagedDataSource.java

diff --git a/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileManagedDataSource.java b/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileManagedDataSource.java
new file mode 100644
index 0000000000..414d5bc4ef
--- /dev/null
+++ b/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileManagedDataSource.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2023 Relution GmbH
+ *
+ * Copyright (C) secunet Security Networks AG
+ *
+ * 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.data;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.database.SQLException;
+
+import org.strongswan.android.logic.StrongSwanApplication;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+
+public class VpnProfileManagedDataSource implements VpnProfileDataSource
+{
+	private static final String NAME_MANAGED_VPN_PROFILES = "org.strongswan.android.data.VpnProfileManagedDataSource.preferences";
+
+	private final ManagedConfigurationService mManagedConfigurationService;
+	private final SharedPreferences mSharedPreferences;
+
+	public VpnProfileManagedDataSource(final Context context)
+	{
+		this.mManagedConfigurationService = StrongSwanApplication.getInstance().getManagedConfigurationService();
+		this.mSharedPreferences = context.getSharedPreferences(NAME_MANAGED_VPN_PROFILES, Context.MODE_PRIVATE);
+	}
+
+	@Override
+	public VpnProfileDataSource open() throws SQLException
+	{
+		return this;
+	}
+
+	@Override
+	public void close()
+	{
+		/* remove passwords that are no longer referenced by a VPN profile */
+		final Set<String> actualKeys = mManagedConfigurationService.getManagedProfiles().keySet();
+
+		final Set<String> storedKeys = new HashSet<>(mSharedPreferences.getAll().keySet());
+		storedKeys.removeAll(actualKeys);
+
+		final SharedPreferences.Editor editor = mSharedPreferences.edit();
+		for (String key : storedKeys)
+		{
+			editor.remove(key);
+		}
+
+		editor.apply();
+	}
+
+	@Override
+	public VpnProfile insertProfile(VpnProfile profile)
+	{
+		return null;
+	}
+
+	@Override
+	public boolean updateVpnProfile(VpnProfile profile)
+	{
+		final VpnProfile existingProfile = getVpnProfile(profile.getUUID());
+		if (existingProfile == null)
+		{
+			return false;
+		}
+
+		final String password = profile.getPassword();
+		existingProfile.setPassword(password);
+
+		final SharedPreferences.Editor editor = mSharedPreferences.edit();
+		editor.putString(profile.getUUID().toString(), password);
+		return editor.commit();
+	}
+
+	@Override
+	public boolean deleteVpnProfile(VpnProfile profile)
+	{
+		return false;
+	}
+
+	@Override
+	public VpnProfile getVpnProfile(UUID uuid)
+	{
+		return mManagedConfigurationService.getManagedProfiles().get(uuid.toString());
+	}
+
+	@Override
+	public List<VpnProfile> getAllVpnProfiles()
+	{
+		final Map<String, ManagedVpnProfile> managedVpnProfiles = mManagedConfigurationService.getManagedProfiles();
+		final List<VpnProfile> vpnProfiles = new ArrayList<>();
+		for (final VpnProfile vpnProfile : managedVpnProfiles.values())
+		{
+			final String password = mSharedPreferences.getString(vpnProfile.getUUID().toString(), vpnProfile.getPassword());
+			vpnProfile.setPassword(password);
+			vpnProfile.setDataSource(this);
+			vpnProfiles.add(vpnProfile);
+		}
+		return vpnProfiles;
+	}
+}
diff --git a/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileSource.java b/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileSource.java
index 2ae0872cc9..fd66308e64 100644
--- a/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileSource.java
+++ b/src/frontends/android/app/src/main/java/org/strongswan/android/data/VpnProfileSource.java
@@ -31,7 +31,9 @@ public class VpnProfileSource implements VpnProfileDataSource
 	public VpnProfileSource(Context context)
 	{
 		vpnProfileSqlDataSource = new VpnProfileSqlDataSource(context);
+
 		dataSources.add(vpnProfileSqlDataSource);
+		dataSources.add(new VpnProfileManagedDataSource(context));
 	}
 
 	@Override