app/src/main/java/net/ktnx/mobileledger/App.java

   1 /*
   2  * Copyright © 2020 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger;
  19
  20 import android.app.Application;
  21 import android.content.res.Configuration;
  22 import android.content.res.Resources;
  23 import android.database.sqlite.SQLiteDatabase;
  24 import android.util.Log;
  25
  26 import net.ktnx.mobileledger.model.Data;
  27 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  28 import net.ktnx.mobileledger.utils.Globals;
  29 import net.ktnx.mobileledger.utils.Logger;
  30 import net.ktnx.mobileledger.utils.MobileLedgerDatabase;
  31
  32 import org.jetbrains.annotations.NotNull;
  33
  34 import java.net.Authenticator;
  35 import java.net.MalformedURLException;
  36 import java.net.PasswordAuthentication;
  37 import java.net.URL;
  38 import java.util.Locale;
  39
  40 public class App extends Application {
  41     public static App instance;
  42     private MobileLedgerDatabase dbHelper;
  43     private boolean monthNamesPrepared = false;
  44     public static SQLiteDatabase getDatabase() {
  45         if (instance == null) throw new RuntimeException("Application not created yet");
  46
  47         return instance.getDB();
  48     }
  49     @Override
  50     public void onCreate() {
  51         Logger.debug("flow", "App onCreate()");
  52         instance = this;
  53         super.onCreate();
  54         Data.refreshCurrencyData(Locale.getDefault());
  55         Authenticator.setDefault(new Authenticator() {
  56             @Override
  57             protected PasswordAuthentication getPasswordAuthentication() {
  58                 MobileLedgerProfile p = Data.profile.getValue();
  59                 if ((p != null) && p.isAuthEnabled()) {
  60                     try {
  61                         final URL url = new URL(p.getUrl());
  62                         final String requestingHost = getRequestingHost();
  63                         final String expectedHost = url.getHost();
  64                         if (requestingHost.equalsIgnoreCase(expectedHost))
  65                             return new PasswordAuthentication(p.getAuthUserName(),
  66                                     p.getAuthPassword().toCharArray());
  67                         else Log.w("http-auth",
  68                                 String.format("Requesting host [%s] differs from expected [%s]",
  69                                         requestingHost, expectedHost));
  70                     }
  71                     catch (MalformedURLException e) {
  72                         e.printStackTrace();
  73                     }
  74                 }
  75
  76                 return super.getPasswordAuthentication();
  77             }
  78         });
  79     }
  80     public static void prepareMonthNames() {
  81         instance.prepareMonthNames(false);
  82     }
  83     private void prepareMonthNames(boolean force) {
  84         if (force || monthNamesPrepared)
  85             return;
  86         Resources rm = getResources();
  87         Globals.monthNames = rm.getStringArray(R.array.month_names);
  88         monthNamesPrepared = true;
  89     }
  90     @Override
  91     public void onTerminate() {
  92         Logger.debug("flow", "App onTerminate()");
  93         if (dbHelper != null)
  94             dbHelper.close();
  95         super.onTerminate();
  96     }
  97     @Override
  98     public void onConfigurationChanged(@NotNull Configuration newConfig) {
  99         super.onConfigurationChanged(newConfig);
 100         prepareMonthNames(true);
 101         Data.refreshCurrencyData(Locale.getDefault());
 102         Data.locale.setValue(Locale.getDefault());
 103     }
 104     public SQLiteDatabase getDB() {
 105         if (dbHelper == null)
 106             initDb();
 107
 108         final SQLiteDatabase db = dbHelper.getWritableDatabase();
 109
 110         return db;
 111     }
 112     private synchronized void initDb() {
 113         if (dbHelper != null) return;
 114
 115         dbHelper = new MobileLedgerDatabase(this);
 116     }
 117 }