always switch to encrypted shared preferences

11 files changed, 48 insertions, 63 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/base/BitmaskApp.java b/app/src/main/java/se/leap/bitmaskclient/base/BitmaskApp.java
index 0ccef0ae..74b789a9 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/BitmaskApp.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/BitmaskApp.java
@@ -22,11 +22,9 @@ import static se.leap.bitmaskclient.appUpdate.DownloadBroadcastReceiver.ACTION_D
 import static se.leap.bitmaskclient.appUpdate.DownloadServiceCommand.CHECK_VERSION_FILE;
 import static se.leap.bitmaskclient.appUpdate.DownloadServiceCommand.DOWNLOAD_UPDATE;
 import static se.leap.bitmaskclient.base.models.Constants.BROADCAST_DOWNLOAD_SERVICE_EVENT;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.ConfigHelper.isCalyxOSWithTetheringSupport;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getSavedProviderFromSharedPreferences;
 
-import android.content.Context;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 
@@ -42,6 +40,7 @@ import se.leap.bitmaskclient.BuildConfig;
 import se.leap.bitmaskclient.appUpdate.DownloadBroadcastReceiver;
 import se.leap.bitmaskclient.base.models.ProviderObservable;
 import se.leap.bitmaskclient.base.utils.PRNGFixes;
+import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 import se.leap.bitmaskclient.eip.EipSetupObserver;
 import se.leap.bitmaskclient.tethering.TetheringStateManager;
 import se.leap.bitmaskclient.tor.TorStatusObservable;
@@ -64,7 +63,7 @@ public class BitmaskApp extends MultiDexApplication {
         // Normal app init code...*/
         PRNGFixes.apply();
         Security.insertProviderAt(Conscrypt.newProvider(), 1);
-        SharedPreferences preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        SharedPreferences preferences = PreferenceHelper.getSharedPreferences(this);
         providerObservable = ProviderObservable.getInstance();
         providerObservable.updateProvider(getSavedProviderFromSharedPreferences(preferences));
         torStatusObservable = TorStatusObservable.getInstance();
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/MainActivity.java b/app/src/main/java/se/leap/bitmaskclient/base/MainActivity.java
index 9225755e..248d96c7 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/MainActivity.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/MainActivity.java
@@ -33,7 +33,6 @@ import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_CONFIGURE_LEAP;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_LOG_IN;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_SWITCH_PROVIDER;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.storeProviderInPreferences;
 import static se.leap.bitmaskclient.eip.EIP.EIPErrors.ERROR_INVALID_VPN_CERTIFICATE;
 import static se.leap.bitmaskclient.eip.EIP.EIPErrors.ERROR_VPN_PREPARE;
@@ -113,7 +112,7 @@ public class MainActivity extends AppCompatActivity implements EipSetupListener,
         navigationDrawerFragment = (NavigationDrawerFragment)
                 getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
 
-        preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(this);
         provider = ProviderObservable.getInstance().getCurrentProvider();
 
         EipSetupObserver.addListener(this);
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/OnBootReceiver.java b/app/src/main/java/se/leap/bitmaskclient/base/OnBootReceiver.java
index 3b534a7d..a508329c 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/OnBootReceiver.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/OnBootReceiver.java
@@ -1,5 +1,10 @@
 package se.leap.bitmaskclient.base;
 
+import static android.content.Intent.ACTION_BOOT_COMPLETED;
+import static se.leap.bitmaskclient.base.models.Constants.APP_ACTION_CONFIGURE_ALWAYS_ON_PROFILE;
+import static se.leap.bitmaskclient.base.models.Constants.EIP_RESTART_ON_BOOT;
+import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_VPN_CERTIFICATE;
+
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -8,12 +13,7 @@ import android.os.Build;
 import android.util.Log;
 
 import de.blinkt.openvpn.core.VpnStatus;
-
-import static android.content.Intent.ACTION_BOOT_COMPLETED;
-import static se.leap.bitmaskclient.base.models.Constants.APP_ACTION_CONFIGURE_ALWAYS_ON_PROFILE;
-import static se.leap.bitmaskclient.base.models.Constants.EIP_RESTART_ON_BOOT;
-import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_VPN_CERTIFICATE;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
+import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 
 public class OnBootReceiver extends BroadcastReceiver {
 
@@ -26,7 +26,7 @@ public class OnBootReceiver extends BroadcastReceiver {
         if (intent == null || !ACTION_BOOT_COMPLETED.equals(intent.getAction())) {
             return;
         }
-        preferences = context.getSharedPreferences(SHARED_PREFERENCES, Context.MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(context);
         boolean providerConfigured = !preferences.getString(PROVIDER_VPN_CERTIFICATE, "").isEmpty();
         boolean startOnBoot = preferences.getBoolean(EIP_RESTART_ON_BOOT, false) && Build.VERSION.SDK_INT < Build.VERSION_CODES.O;
         boolean isAlwaysOnConfigured = VpnStatus.isAlwaysOn();
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/StartActivity.java b/app/src/main/java/se/leap/bitmaskclient/base/StartActivity.java
index b622f5ca..94000a0f 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/StartActivity.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/StartActivity.java
@@ -25,7 +25,6 @@ import static se.leap.bitmaskclient.base.models.Constants.PREFERENCES_APP_VERSIO
 import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_EIP_DEFINITION;
 import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_CONFIGURE_LEAP;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.ConfigHelper.isDefaultBitmask;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.storeProviderInPreferences;
 
@@ -38,7 +37,6 @@ import android.util.Log;
 
 import androidx.annotation.IntDef;
 import androidx.annotation.Nullable;
-import androidx.security.crypto.EncryptedSharedPreferences;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/fragments/EipFragment.java b/app/src/main/java/se/leap/bitmaskclient/base/fragments/EipFragment.java
index a2fb2683..a8d11869 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/fragments/EipFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/fragments/EipFragment.java
@@ -25,7 +25,6 @@ import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_CONFIGURE_LEAP;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_LOG_IN;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_SWITCH_PROVIDER;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.ConfigHelper.isDefaultBitmask;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getPreferredCity;
 import static se.leap.bitmaskclient.eip.EipSetupObserver.reconnectingWithDifferentGateway;
@@ -159,7 +158,7 @@ public class EipFragment extends Fragment implements Observer {
         torStatusObservable = TorStatusObservable.getInstance();
         Activity activity = getActivity();
         if (activity != null) {
-            preferences = getActivity().getSharedPreferences(SHARED_PREFERENCES, Context.MODE_PRIVATE);
+            preferences = PreferenceHelper.getSharedPreferences(activity);
         } else {
             Log.e(TAG, "activity is null in onCreate - no preferences set!");
         }
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java b/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
index 749ffd9f..793c6407 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/fragments/GatewaySelectionFragment.java
@@ -16,6 +16,16 @@
  */
 package se.leap.bitmaskclient.base.fragments;
 
+import static android.view.View.GONE;
+import static android.view.View.VISIBLE;
+import static de.blinkt.openvpn.core.connection.Connection.TransportType.OPENVPN;
+import static de.blinkt.openvpn.core.connection.Connection.TransportType.PT;
+import static se.leap.bitmaskclient.base.MainActivity.ACTION_SHOW_VPN_FRAGMENT;
+import static se.leap.bitmaskclient.base.models.Constants.USE_BRIDGES;
+import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getUseBridges;
+import static se.leap.bitmaskclient.base.utils.PreferenceHelper.useBridges;
+import static se.leap.bitmaskclient.base.utils.ViewHelper.setActionBarSubtitle;
+
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
@@ -49,18 +59,6 @@ import se.leap.bitmaskclient.eip.EipCommand;
 import se.leap.bitmaskclient.eip.EipStatus;
 import se.leap.bitmaskclient.eip.GatewaysManager;
 
-import static android.content.Context.MODE_PRIVATE;
-import static android.view.View.GONE;
-import static android.view.View.VISIBLE;
-import static de.blinkt.openvpn.core.connection.Connection.TransportType.OPENVPN;
-import static de.blinkt.openvpn.core.connection.Connection.TransportType.PT;
-import static se.leap.bitmaskclient.base.MainActivity.ACTION_SHOW_VPN_FRAGMENT;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
-import static se.leap.bitmaskclient.base.models.Constants.USE_BRIDGES;
-import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getUseBridges;
-import static se.leap.bitmaskclient.base.utils.PreferenceHelper.useBridges;
-import static se.leap.bitmaskclient.base.utils.ViewHelper.setActionBarSubtitle;
-
 interface LocationListSelectionListener {
     void onLocationManuallySelected(Location location);
 }
@@ -89,7 +87,7 @@ public class GatewaySelectionFragment extends Fragment implements Observer, Loca
         super.onCreate(savedInstanceState);
         gatewaysManager = new GatewaysManager(getContext());
         eipStatus = EipStatus.getInstance();
-        preferences = getContext().getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(getContext());
     }
 
     @Override
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/fragments/NavigationDrawerFragment.java b/app/src/main/java/se/leap/bitmaskclient/base/fragments/NavigationDrawerFragment.java
index aa894cca..f51fd342 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/fragments/NavigationDrawerFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/fragments/NavigationDrawerFragment.java
@@ -25,7 +25,6 @@ import static se.leap.bitmaskclient.base.models.Constants.ENABLE_DONATION;
 import static se.leap.bitmaskclient.base.models.Constants.PREFERRED_CITY;
 import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.base.models.Constants.REQUEST_CODE_SWITCH_PROVIDER;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.ConfigHelper.isDefaultBitmask;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getPreferredCity;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getSaveBattery;
@@ -63,6 +62,7 @@ import se.leap.bitmaskclient.base.FragmentManagerEnhanced;
 import se.leap.bitmaskclient.base.MainActivity;
 import se.leap.bitmaskclient.base.models.Provider;
 import se.leap.bitmaskclient.base.models.ProviderObservable;
+import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 import se.leap.bitmaskclient.base.views.IconSwitchEntry;
 import se.leap.bitmaskclient.base.views.IconTextEntry;
 import se.leap.bitmaskclient.eip.EipStatus;
@@ -110,7 +110,7 @@ public class NavigationDrawerFragment extends Fragment implements SharedPreferen
         super.onCreate(savedInstanceState);
         // Reads in the flag indicating whether or not the user has demonstrated awareness of the
         // drawer. See PREF_USER_LEARNED_DRAWER for details.
-        preferences = getContext().getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(getContext());
         preferences.registerOnSharedPreferenceChangeListener(this);
     }
 
diff --git a/app/src/main/java/se/leap/bitmaskclient/base/fragments/SettingsFragment.java b/app/src/main/java/se/leap/bitmaskclient/base/fragments/SettingsFragment.java
index 40bc256c..f36b17ad 100644
--- a/app/src/main/java/se/leap/bitmaskclient/base/fragments/SettingsFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/base/fragments/SettingsFragment.java
@@ -1,12 +1,10 @@
 package se.leap.bitmaskclient.base.fragments;
 
-import static android.content.Context.MODE_PRIVATE;
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
 import static se.leap.bitmaskclient.R.string.advanced_settings;
 import static se.leap.bitmaskclient.base.models.Constants.GATEWAY_PINNING;
 import static se.leap.bitmaskclient.base.models.Constants.PREFER_UDP;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.models.Constants.USE_BRIDGES;
 import static se.leap.bitmaskclient.base.models.Constants.USE_IPv6_FIREWALL;
 import static se.leap.bitmaskclient.base.models.Constants.USE_OBFUSCATION_PINNING;
@@ -71,7 +69,7 @@ public class SettingsFragment extends Fragment implements SharedPreferences.OnSh
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        preferences = getContext().getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(getContext());
         preferences.registerOnSharedPreferenceChangeListener(this);
         firewallManager = new FirewallManager(getContext().getApplicationContext(), false);
     }
diff --git a/app/src/main/java/se/leap/bitmaskclient/eip/EIP.java b/app/src/main/java/se/leap/bitmaskclient/eip/EIP.java
index 5b082448..29714670 100644
--- a/app/src/main/java/se/leap/bitmaskclient/eip/EIP.java
+++ b/app/src/main/java/se/leap/bitmaskclient/eip/EIP.java
@@ -37,7 +37,6 @@ import static se.leap.bitmaskclient.base.models.Constants.EIP_RECEIVER;
 import static se.leap.bitmaskclient.base.models.Constants.EIP_RESTART_ON_BOOT;
 import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_PROFILE;
 import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_VPN_CERTIFICATE;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.base.utils.ConfigHelper.ensureNotOnMainThread;
 import static se.leap.bitmaskclient.base.utils.PreferenceHelper.getPreferredCity;
 import static se.leap.bitmaskclient.eip.EIP.EIPErrors.ERROR_INVALID_PROFILE;
@@ -84,11 +83,9 @@ import de.blinkt.openvpn.core.IOpenVPNServiceInternal;
 import de.blinkt.openvpn.core.OpenVPNService;
 import de.blinkt.openvpn.core.Preferences;
 import de.blinkt.openvpn.core.VpnStatus;
-import de.blinkt.openvpn.core.connection.Connection;
 import se.leap.bitmaskclient.R;
 import se.leap.bitmaskclient.base.OnBootReceiver;
 import se.leap.bitmaskclient.base.models.Provider;
-import se.leap.bitmaskclient.base.models.Pair;
 import se.leap.bitmaskclient.base.models.ProviderObservable;
 import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 import se.leap.bitmaskclient.eip.GatewaysManager.GatewayOptions;
@@ -147,7 +144,7 @@ public final class EIP extends JobIntentService implements Observer {
         super.onCreate();
         eipStatus = EipStatus.getInstance();
         eipStatus.addObserver(this);
-        preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(this);
     }
 
     @Override
diff --git a/app/src/main/java/se/leap/bitmaskclient/eip/VoidVpnService.java b/app/src/main/java/se/leap/bitmaskclient/eip/VoidVpnService.java
index 79876d50..d9da622c 100644
--- a/app/src/main/java/se/leap/bitmaskclient/eip/VoidVpnService.java
+++ b/app/src/main/java/se/leap/bitmaskclient/eip/VoidVpnService.java
@@ -16,7 +16,12 @@
  */
 package se.leap.bitmaskclient.eip;
 
-import android.annotation.TargetApi;
+import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_START_ALWAYS_ON_VPN;
+import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_START_BLOCKING_VPN;
+import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_STOP_BLOCKING_VPN;
+import static se.leap.bitmaskclient.base.models.Constants.EIP_IS_ALWAYS_ON;
+import static se.leap.bitmaskclient.base.utils.ConfigHelper.getProviderFormattedString;
+
 import android.app.Notification;
 import android.content.Intent;
 import android.content.SharedPreferences;
@@ -35,13 +40,7 @@ import java.util.Observer;
 import de.blinkt.openvpn.core.ConnectionStatus;
 import de.blinkt.openvpn.core.VpnStatus;
 import se.leap.bitmaskclient.R;
-
-import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_START_ALWAYS_ON_VPN;
-import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_START_BLOCKING_VPN;
-import static se.leap.bitmaskclient.base.models.Constants.EIP_ACTION_STOP_BLOCKING_VPN;
-import static se.leap.bitmaskclient.base.models.Constants.EIP_IS_ALWAYS_ON;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
-import static se.leap.bitmaskclient.base.utils.ConfigHelper.getProviderFormattedString;
+import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 
 
 public class VoidVpnService extends VpnService implements Observer, VpnNotificationManager.VpnServiceCallback {
@@ -85,7 +84,7 @@ public class VoidVpnService extends VpnService implements Observer, VpnNotificat
             thread = new Thread(new Runnable() {
                 public void run() {
                     establishBlockingVpn();
-                    SharedPreferences preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+                    SharedPreferences preferences = PreferenceHelper.getSharedPreferences(VoidVpnService.this.getApplicationContext());
                     preferences.edit().putBoolean(EIP_IS_ALWAYS_ON, false).commit();
                     Log.d(TAG, "start blocking vpn profile - always on = false");
                 }
@@ -97,7 +96,7 @@ public class VoidVpnService extends VpnService implements Observer, VpnNotificat
             thread = new Thread(new Runnable() {
                 public void run() {
                     establishBlockingVpn();
-                    SharedPreferences preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+                    SharedPreferences preferences = PreferenceHelper.getSharedPreferences(VoidVpnService.this.getApplicationContext());
                     preferences.edit().putBoolean(EIP_IS_ALWAYS_ON, true).commit();
                     requestVpnWithLastSelectedProfile();
                     Log.d(TAG, "start blocking vpn profile - always on = true");
diff --git a/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/ConfigWizardBaseActivity.java b/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/ConfigWizardBaseActivity.java
index 5cfefb2e..caba1436 100644
--- a/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/ConfigWizardBaseActivity.java
+++ b/app/src/main/java/se/leap/bitmaskclient/providersetup/activities/ConfigWizardBaseActivity.java
@@ -1,7 +1,17 @@
 package se.leap.bitmaskclient.providersetup.activities;
 
+import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
+import static android.view.View.GONE;
+import static android.view.View.VISIBLE;
+import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
+import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
+import static se.leap.bitmaskclient.tor.TorStatusObservable.getBootstrapProgress;
+import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastLogs;
+import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastSnowflakeLog;
+import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastTorLog;
+import static se.leap.bitmaskclient.tor.TorStatusObservable.getStringForCurrentStatus;
+
 import android.content.SharedPreferences;
-import android.graphics.PorterDuff;
 import android.graphics.Rect;
 import android.os.Build;
 import android.os.Bundle;
@@ -20,7 +30,6 @@ import androidx.annotation.StringRes;
 import androidx.appcompat.widget.AppCompatTextView;
 import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.constraintlayout.widget.Guideline;
-import androidx.core.content.ContextCompat;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
@@ -31,21 +40,10 @@ import java.util.Observer;
 import butterknife.BindView;
 import se.leap.bitmaskclient.R;
 import se.leap.bitmaskclient.base.models.Provider;
+import se.leap.bitmaskclient.base.utils.PreferenceHelper;
 import se.leap.bitmaskclient.base.views.ProviderHeaderView;
 import se.leap.bitmaskclient.tor.TorStatusObservable;
 
-import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
-import static android.view.View.GONE;
-import static android.view.View.VISIBLE;
-import static androidx.recyclerview.widget.RecyclerView.SCROLL_STATE_IDLE;
-import static se.leap.bitmaskclient.base.models.Constants.PROVIDER_KEY;
-import static se.leap.bitmaskclient.base.models.Constants.SHARED_PREFERENCES;
-import static se.leap.bitmaskclient.tor.TorStatusObservable.getBootstrapProgress;
-import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastLogs;
-import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastSnowflakeLog;
-import static se.leap.bitmaskclient.tor.TorStatusObservable.getLastTorLog;
-import static se.leap.bitmaskclient.tor.TorStatusObservable.getStringForCurrentStatus;
-
 /**
  * Base Activity for configuration wizard activities
  *
@@ -135,7 +133,7 @@ public abstract class ConfigWizardBaseActivity extends ButterKnifeActivity imple
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        preferences = PreferenceHelper.getSharedPreferences(this);
         provider = getIntent().getParcelableExtra(PROVIDER_KEY);
     }