Merge branch 'donation_feature' into 'master'

Donation feature

See merge request leap/bitmask_android!74

6 files changed, 134 insertions, 2 deletions

diff --git a/app/build.gradle b/app/build.gradle
index 1ade8155..09858cd2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,6 +12,20 @@ android {
     resValue "string", "app_name", "Bitmask"
     vectorDrawables.useSupportLibrary = true
     buildConfigField 'boolean', 'openvpn3', 'false'
+
+    //Build Config Fields for default donation details
+
+    //This is the default donation URL and should be set to the donation page of LEAP
+    // and this should not be set/altered anywhere else.
+    buildConfigField 'String', 'default_donation_url', '"https://leap.se/en/about-us/donate"'
+    //This is the donation URL and should be set to the relevant donation page.
+    buildConfigField 'String', 'donation_url', 'null'
+    //The field to enable donations in the app.
+    buildConfigField 'boolean', 'enable_donation', 'true'
+    //The field to enable donation reminder popup in the app if enable_donation is set to 'false' this will be disabled.
+    buildConfigField 'boolean', 'enable_donation_reminder', 'true'
+    //The duration in days to trigger the donation reminder
+    buildConfigField 'int', 'donation_reminder_duration', '30'
     testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     dexOptions {
       jumboMode true
diff --git a/app/src/main/java/se/leap/bitmaskclient/Constants.java b/app/src/main/java/se/leap/bitmaskclient/Constants.java
index d719e8d3..af1d55ec 100644
--- a/app/src/main/java/se/leap/bitmaskclient/Constants.java
+++ b/app/src/main/java/se/leap/bitmaskclient/Constants.java
@@ -1,5 +1,7 @@
 package se.leap.bitmaskclient;
 
+import android.text.TextUtils;
+
 public interface Constants {
 
     //////////////////////////////////////////////
@@ -87,4 +89,16 @@ public interface Constants {
     // ICS-OPENVPN CONSTANTS
     /////////////////////////////////////////////
     String DEFAULT_SHARED_PREFS_BATTERY_SAVER = "screenoff";
+
+    //////////////////////////////////////////////
+    // CUSTOM CONSTANTS
+    /////////////////////////////////////////////
+    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 = TextUtils.isEmpty(BuildConfig.donation_url) ?
+            BuildConfig.default_donation_url : BuildConfig.donation_url;
+    String LAST_DONATION_REMINDER_DATE = "last_donation_reminder_date";
+
+
 }
diff --git a/app/src/main/java/se/leap/bitmaskclient/DrawerSettingsAdapter.java b/app/src/main/java/se/leap/bitmaskclient/DrawerSettingsAdapter.java
index 8238df55..01b10575 100644
--- a/app/src/main/java/se/leap/bitmaskclient/DrawerSettingsAdapter.java
+++ b/app/src/main/java/se/leap/bitmaskclient/DrawerSettingsAdapter.java
@@ -40,6 +40,7 @@ public class DrawerSettingsAdapter extends BaseAdapter {
     public static final int ABOUT = 2;
     public static final int BATTERY_SAVER = 3;
     public static final int ALWAYS_ON = 4;
+    public static final int DONATE = 5;
 
     //view types
     public final static int VIEW_SIMPLE_TEXT = 0;
diff --git a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
index 5dbec7b0..535322e5 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
@@ -25,19 +25,27 @@ 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;
 import android.support.v7.widget.AppCompatTextView;
+import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
 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.Locale;
 import java.util.Observable;
 import java.util.Observer;
 
@@ -55,11 +63,16 @@ 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 +115,9 @@ public class EipFragment extends Fragment implements Observer {
     private IOpenVPNServiceInternal mService;
     private ServiceConnection openVpnConnection;
 
+    private final String DATE_PATTERN = "dd/MM/yyyy";
+    private final int ONE_DAY = 86400000; //1000*60*60*24
+
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
@@ -152,6 +168,14 @@ 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
@@ -180,7 +204,6 @@ public class EipFragment extends Fragment implements Observer {
         } else if (showPendingStartCancellation) {
             outState.putBoolean(KEY_SHOW_PENDING_START_CANCELLATION, true);
             alertDialog.dismiss();
-
         }
     }
 
@@ -483,4 +506,68 @@ 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;
+        }
+        String message = TextUtils.isEmpty(activity.getString(R.string.donate_message)) ?
+                activity.getString(R.string.donate_default_message) : activity.getString(R.string.donate_message);
+        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(activity);
+        alertDialog = alertBuilder.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) {
+                    }
+                }).setOnDismissListener(new DialogInterface.OnDismissListener() {
+                    @Override
+                    public void onDismiss(DialogInterface dialog) {
+                        saveLastDonationReminderDate();
+                    }
+                }).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, Locale.US);
+        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()) / ONE_DAY;
+        return diffDays >= DONATION_REMINDER_DURATION;
+    }
+
+    private void saveLastDonationReminderDate() {
+        SimpleDateFormat sdf = new SimpleDateFormat(DATE_PATTERN, Locale.US);
+        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 e7a5e460..14c2eacf 100644
--- a/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
@@ -22,6 +22,7 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
+import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
@@ -46,7 +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;
@@ -67,9 +67,12 @@ import static se.leap.bitmaskclient.ConfigHelper.getShowAlwaysOnDialog;
 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;
+import static se.leap.bitmaskclient.DrawerSettingsAdapter.DONATE;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.DrawerSettingsItem.getSimpleTextInstance;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.DrawerSettingsItem.getSwitchInstance;
 import static se.leap.bitmaskclient.DrawerSettingsAdapter.LOG;
@@ -77,6 +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.donate_title;
 
 /**
  * Fragment used for managing interactions for and presentation of a navigation drawer.
@@ -184,6 +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));
+        if (ENABLE_DONATION) {
+            settingsListAdapter.addItem(getSimpleTextInstance(getString(donate_title), DONATE));
+        }
 
         mDrawerSettingsListView.setAdapter(settingsListAdapter);
 
@@ -452,6 +459,10 @@ public class NavigationDrawerFragment extends Fragment {
                         startActivity(intent);
                     }
                     break;
+                case DONATE:
+                    Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(DONATION_URL));
+                    startActivity(browserIntent);
+                    break;
                 default:
                     break;
             }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a308b5e7..3aa00124 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -113,4 +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="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>