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

   1 /*
   2  * Copyright © 2019 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     public static SQLiteDatabase getDatabase() {
  42         if (instance == null) throw new RuntimeException("Application not created yet");
  43
  44         return instance.getDB();
  45     }
  46     @Override
  47     public void onCreate() {
  48         Logger.debug("flow", "App onCreate()");
  49         instance = this;
  50         super.onCreate();
  51         updateMonthNames();
  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     private void updateMonthNames() {
  79         Resources rm = getResources();
  80         Globals.monthNames = rm.getStringArray(R.array.month_names);
  81     }
  82     @Override
  83     public void onTerminate() {
  84         Logger.debug("flow", "App onTerminate()");
  85         if (dbHelper != null) dbHelper.close();
  86         super.onTerminate();
  87     }
  88     @Override
  89     public void onConfigurationChanged(Configuration newConfig) {
  90         super.onConfigurationChanged(newConfig);
  91         updateMonthNames();
  92     }
  93     public SQLiteDatabase getDB() {
  94         if (dbHelper == null) initDb();
  95
  96         final SQLiteDatabase db = dbHelper.getWritableDatabase();
  97         db.execSQL("pragma case_sensitive_like=ON;");
  98
  99         return db;
 100     }
 101     private synchronized void initDb() {
 102         if (dbHelper != null) return;
 103
 104         dbHelper = new MobileLedgerDatabase(this);
 105     }
 106 }