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 java.net.Authenticator;
  33 import java.net.MalformedURLException;
  34 import java.net.PasswordAuthentication;
  35 import java.net.URL;
  36 import java.util.Locale;
  37
  38 public class App extends Application {
  39     public static App instance;
  40     private MobileLedgerDatabase dbHelper;
  41     private boolean monthNamesPrepared = false;
  42     public static SQLiteDatabase getDatabase() {
  43         if (instance == null) throw new RuntimeException("Application not created yet");
  44
  45         return instance.getDB();
  46     }
  47     @Override
  48     public void onCreate() {
  49         Logger.debug("flow", "App onCreate()");
  50         instance = this;
  51         super.onCreate();
  52         Data.refreshCurrencyData(Locale.getDefault());
  53         Authenticator.setDefault(new Authenticator() {
  54             @Override
  55             protected PasswordAuthentication getPasswordAuthentication() {
  56                 MobileLedgerProfile p = Data.profile.getValue();
  57                 if ((p != null) && p.isAuthEnabled()) {
  58                     try {
  59                         final URL url = new URL(p.getUrl());
  60                         final String requestingHost = getRequestingHost();
  61                         final String expectedHost = url.getHost();
  62                         if (requestingHost.equalsIgnoreCase(expectedHost))
  63                             return new PasswordAuthentication(p.getAuthUserName(),
  64                                     p.getAuthPassword().toCharArray());
  65                         else Log.w("http-auth",
  66                                 String.format("Requesting host [%s] differs from expected [%s]",
  67                                         requestingHost, expectedHost));
  68                     }
  69                     catch (MalformedURLException e) {
  70                         e.printStackTrace();
  71                     }
  72                 }
  73
  74                 return super.getPasswordAuthentication();
  75             }
  76         });
  77     }
  78     public static void prepareMonthNames() {
  79         instance.prepareMonthNames(false);
  80     }
  81     private void prepareMonthNames(boolean force) {
  82         if (force || monthNamesPrepared)
  83             return;
  84         Resources rm = getResources();
  85         Globals.monthNames = rm.getStringArray(R.array.month_names);
  86         monthNamesPrepared = true;
  87     }
  88     @Override
  89     public void onTerminate() {
  90         Logger.debug("flow", "App onTerminate()");
  91         if (dbHelper != null)
  92             dbHelper.close();
  93         super.onTerminate();
  94     }
  95     @Override
  96     public void onConfigurationChanged(Configuration newConfig) {
  97         super.onConfigurationChanged(newConfig);
  98         prepareMonthNames(true);
  99         Data.refreshCurrencyData(Locale.getDefault());
 100         Data.locale.setValue(Locale.getDefault());
 101     }
 102     public SQLiteDatabase getDB() {
 103         if (dbHelper == null) initDb();
 104
 105         final SQLiteDatabase db = dbHelper.getWritableDatabase();
 106         db.execSQL("pragma case_sensitive_like=ON;");
 107
 108         return db;
 109     }
 110     private synchronized void initDb() {
 111         if (dbHelper != null) return;
 112
 113         dbHelper = new MobileLedgerDatabase(this);
 114     }
 115 }