Added donation reminders

4 files changed, 99 insertions, 5 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/Constants.java b/app/src/main/java/se/leap/bitmaskclient/Constants.java
index bcce1549..b4e8646e 100644
--- a/app/src/main/java/se/leap/bitmaskclient/Constants.java
+++ b/app/src/main/java/se/leap/bitmaskclient/Constants.java
@@ -91,6 +91,12 @@ public interface Constants {
     //////////////////////////////////////////////
     // CUSTOM CONSTANTS
     /////////////////////////////////////////////
-    String DONATION_URL = BuildConfig.donation_url;
+    boolean ENABLE_DONATION = BuildConfig.enable_donation;
+    boolean ENABLE_DONATION_REMINDER = BuildConfig.enable_donation_reminder;
+    int DONATION_REMINDER_DURATION = BuildConfig.donation_reminder_duration;
+    String DONATION_URL = BuildConfig.donation_url == null || BuildConfig.donation_url.equals("")?
+            BuildConfig.default_donation_url:BuildConfig.donation_url;
+    String LAST_DONATION_REMINDER_DATE = "last_daonation_reminder_date";
+
 
 }
diff --git a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
index 5dbec7b0..86a5d7c66 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
@@ -25,9 +25,11 @@ import android.content.ServiceConnection;
 import android.content.SharedPreferences;
 import android.graphics.ColorMatrix;
 import android.graphics.ColorMatrixColorFilter;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.AppCompatImageView;
@@ -38,6 +40,10 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.temporal.ChronoUnit;
+import java.util.Date;
 import java.util.Observable;
 import java.util.Observer;
 
@@ -55,11 +61,16 @@ import se.leap.bitmaskclient.views.VpnStateImage;
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;
 import static de.blinkt.openvpn.core.ConnectionStatus.LEVEL_NONETWORK;
+import static se.leap.bitmaskclient.Constants.DONATION_REMINDER_DURATION;
 import static se.leap.bitmaskclient.Constants.EIP_RESTART_ON_BOOT;
 import static se.leap.bitmaskclient.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_LOG_IN;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_SWITCH_PROVIDER;
 import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES;
+import static se.leap.bitmaskclient.Constants.DONATION_URL;
+import static se.leap.bitmaskclient.Constants.ENABLE_DONATION;
+import static se.leap.bitmaskclient.Constants.ENABLE_DONATION_REMINDER;
+import static se.leap.bitmaskclient.Constants.LAST_DONATION_REMINDER_DATE;
 import static se.leap.bitmaskclient.ProviderAPI.UPDATE_INVALID_VPN_CERTIFICATE;
 import static se.leap.bitmaskclient.ProviderAPI.USER_MESSAGE;
 import static se.leap.bitmaskclient.R.string.vpn_certificate_user_message;
@@ -102,6 +113,8 @@ public class EipFragment extends Fragment implements Observer {
     private IOpenVPNServiceInternal mService;
     private ServiceConnection openVpnConnection;
 
+    private final String DATE_PATTERN = "dd/MM/yyyy";
+
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
@@ -152,6 +165,14 @@ public class EipFragment extends Fragment implements Observer {
     }
 
     @Override
+    public void onStart() {
+        super.onStart();
+        if (isDonationReminderCallable()){
+            showDonationReminder();
+        }
+    }
+
+    @Override
     public void onResume() {
         super.onResume();
         //FIXME: avoid race conditions while checking certificate an logging in at about the same time
@@ -483,4 +504,65 @@ public class EipFragment extends Fragment implements Observer {
             mService = null;
         }
     }
+
+    private void showDonationReminder() {
+        Activity activity = getActivity();
+        if (activity == null) {
+            Log.e(TAG, "activity is null when triggering donation reminder");
+            return;
+        }
+        saveLastDonationReminderDate();
+        String message = activity.getString(R.string.donate_message) == null || activity.getString(R.string.donate_message).equals("")?
+                activity.getString(R.string.donate_default_message):activity.getString(R.string.donate_message);
+        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+        builder.setTitle(activity.getString(R.string.donate_title))
+                .setMessage(message)
+                .setPositiveButton(R.string.donate_button_donate, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(DONATION_URL));
+                        startActivity(browserIntent);
+                    }
+                })
+                .setNegativeButton(R.string.donate_button_remind_later, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                    }
+                })
+                .show();
+    }
+
+    private boolean isDonationReminderCallable(){
+        if (!ENABLE_DONATION||!ENABLE_DONATION_REMINDER){
+            return false;
+        }
+
+        if (preferences==null){
+            Log.e(TAG, "preferences is null!");
+            return false;
+        }
+
+        String lastDonationReminderDate =  preferences.getString(LAST_DONATION_REMINDER_DATE, null);
+        if (lastDonationReminderDate==null){
+            return true;
+        }
+
+        SimpleDateFormat sdf = new SimpleDateFormat(DATE_PATTERN);
+        Date lastDate;
+        try {
+            lastDate = sdf.parse(lastDonationReminderDate);
+        } catch (ParseException e) {
+            e.printStackTrace();
+            Log.e(TAG, e.getMessage());
+            return false;
+        }
+
+        Date currentDate = new Date();
+        long diffDays = (currentDate.getTime() - lastDate.getTime())/(1000*60*60*24);
+        return diffDays >= DONATION_REMINDER_DURATION;
+    }
+
+    private void saveLastDonationReminderDate(){
+        SimpleDateFormat sdf = new SimpleDateFormat(DATE_PATTERN);
+        Date lastDate = new Date();
+        preferences.edit().putString(LAST_DONATION_REMINDER_DATE, sdf.format(lastDate)).apply();
+    }
 }
diff --git a/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java b/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
index 371e65fc..14c2eacf 100644
--- a/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
@@ -47,7 +47,6 @@ import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.CompoundButton;
 import android.widget.ListView;
-import android.widget.Toast;
 
 import se.leap.bitmaskclient.ConfigHelper;
 import se.leap.bitmaskclient.DrawerSettingsAdapter;
@@ -69,6 +68,7 @@ import static se.leap.bitmaskclient.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_SWITCH_PROVIDER;
 import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.Constants.DONATION_URL;
+import static se.leap.bitmaskclient.Constants.ENABLE_DONATION;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.ABOUT;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.ALWAYS_ON;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.BATTERY_SAVER;
@@ -80,7 +80,7 @@ import static se.leap.bitmaskclient.DrawerSettingsAdapter.SWITCH_PROVIDER;
 import static se.leap.bitmaskclient.R.string.about_fragment_title;
 import static se.leap.bitmaskclient.R.string.log_fragment_title;
 import static se.leap.bitmaskclient.R.string.switch_provider_menu_option;
-import static se.leap.bitmaskclient.R.string.navigation_drawer_donation_button;
+import static se.leap.bitmaskclient.R.string.donate_title;
 
 /**
  * Fragment used for managing interactions for and presentation of a navigation drawer.
@@ -188,7 +188,9 @@ public class NavigationDrawerFragment extends Fragment {
         settingsListAdapter.addItem(getSimpleTextInstance(getString(switch_provider_menu_option), SWITCH_PROVIDER));
         settingsListAdapter.addItem(getSimpleTextInstance(getString(log_fragment_title), LOG));
         settingsListAdapter.addItem(getSimpleTextInstance(getString(about_fragment_title), ABOUT));
-        settingsListAdapter.addItem(getSimpleTextInstance(getString(navigation_drawer_donation_button), DONATE));
+        if (ENABLE_DONATION) {
+            settingsListAdapter.addItem(getSimpleTextInstance(getString(donate_title), DONATE));
+        }
 
         mDrawerSettingsListView.setAdapter(settingsListAdapter);
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 503d7df6..3aa00124 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -113,5 +113,9 @@
   <string name="always_on_vpn">Always-on VPN</string>
   <string name="do_not_show_again">Do not show again.</string>
   <string name="always_on_vpn_user_message">To enable always-on VPN in Android VPN Settings click on the configure icon [img src] and turn the switch on."</string>
-  <string name="navigation_drawer_donation_button">Donate</string>
+  <string name="donate_title">Donate</string>
+  <string name="donate_default_message">Please donate today if you value secure communication that is easy for both the end-user and the service provider.</string>
+  <string name="donate_message">LEAP depends on donations and grants. Please donate today if you value secure communication that is easy for both the end-user and the service provider.</string>
+  <string name="donate_button_remind_later">Remind me later</string>
+  <string name="donate_button_donate">Donate</string>
 </resources>