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//
// Copyright 2017 Filippo "Fil" Bergamo <fil.bergamo@riseup.net>
//
// This file is part of RepWifiApp.
//
// RepWifiApp is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// RepWifiApp is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with RepWifiApp. If not, see <http://www.gnu.org/licenses/>.
//
// ********************************************************************
package fil.libre.repwifiapp;
import java.io.File;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Locale;
import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Environment;
import android.preference.PreferenceManager;
import fil.libre.repwifiapp.activities.MainActivity;
import fil.libre.repwifiapp.helpers.ConnectionStatus;
import fil.libre.repwifiapp.helpers.Engine;
import fil.libre.repwifiapp.helpers.Engine6p0;
import fil.libre.repwifiapp.helpers.IEngine;
import fil.libre.repwifiapp.helpers.NetworkManager;
import fil.libre.repwifiapp.helpers.Utils;
import fil.libre.repwifiapp.helpers.WpaCli;
import fil.libre.repwifiapp.helpers.WpaSupplicant;
public abstract class Commons {
private static Context currentContext;
public static Context getContext() {
return currentContext;
}
// ------------- Environment Constants -----------------
public static final int EXCOD_ROOT_DISABLED = 255;
public static final int EXCOD_ROOT_DENIED = 1;
public static final int WAIT_ON_USB_ATTACHED = 1500;
public static final int WAIT_FOR_GATEWAY = 4000;
public static final String BSSID_NOT_AVAILABLE = "[BSSID-NOT-AVAILABLE]";
public static final String v6p0 = "6.0";
// ---------------------------------------------
// ------------- Shared Engines -----------------------
public static IEngine connectionEngine = null;
public static NetworkManager storage = null;
// ----------------------------------------------------
// ------------- Shared Resources ---------------------
public static int colorThemeDark;
public static int colorThemeLight;
public static int colorBlack;
public static String dns1Default = "";
public static String dns2Default = "";
private static String APP_DATA_FOLDER;
public static String msgNoSavedNetwork;
public static String getNetworkStorageFile() {
if (APP_DATA_FOLDER == null) {
return null;
} else {
return APP_DATA_FOLDER + "/repwifi_storage.conf";
}
}
@SuppressLint("SimpleDateFormat")
public static String getLogDumpFile() {
File f = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
if (f == null || !f.exists()) {
return null;
}
String basefolder;
try {
basefolder = f.getCanonicalPath();
} catch (Exception e) {
Utils.logError("Exception while resolving canonical path for log dump file.", e);
return null;
}
DateFormat dateFormat = new SimpleDateFormat("yyyyMMddhhmmss", Locale.getDefault());
String ts = dateFormat.format(Calendar.getInstance().getTime());
return basefolder + "/repwifi_log_dump." + ts + ".log";
}
// --------------------------------------------------------
private static final int NOTIFICATION_ID = 1;
public static void updateNotification(Context context) {
ConnectionStatus status = WpaCli.getConnectionStatus();
Notification.Builder builder = new Notification.Builder(context);
Intent intent = new Intent(context, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
builder.setContentIntent(pendingIntent);
int iconId = R.drawable.ic_stat_discon;
String msg = "RepWifi";
if (status != null) {
if (status.isConnected()) {
iconId = R.drawable.ic_stat_repwifi;
msg += " - " + status.SSID;
} else {
msg += " - " + status.status;
}
}
builder.setSmallIcon(iconId);
builder.setContentTitle(msg);
builder.setContentText(currentContext.getString(R.string.msg_touch_open));
Notification n = builder.build();
n.flags |= Notification.FLAG_NO_CLEAR;
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Service.NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFICATION_ID, n);
}
public static void showMessage(String msg) {
showMessage(msg, currentContext);
}
public static void showMessage(String msg, Context context) {
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(context,
R.style.Theme_RepWifiDialogTheme);
dlgAlert.setMessage(msg);
dlgAlert.setPositiveButton(currentContext.getString(android.R.string.ok),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
return;
}
});
dlgAlert.setCancelable(false);
AlertDialog diag = dlgAlert.create();
diag.show();
}
public static void resetSettingsDefault(Context context, boolean silent) {
if (silent) {
Editor e = getSettings().edit();
e.clear();
e.commit();
} else {
String msg = context.getString(R.string.confirm_reset_settings);
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(context,
R.style.Theme_RepWifiDialogTheme);
dlgAlert.setMessage(msg);
dlgAlert.setPositiveButton(context.getString(android.R.string.ok),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
resetSettingsDefault(null, true);
return;
}
});
dlgAlert.setNegativeButton(context.getString(android.R.string.cancel),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
return;
}
});
dlgAlert.setCancelable(false);
AlertDialog diag = dlgAlert.create();
diag.show();
return;
}
}
public static void killBackEnd(Context context, boolean silent) {
if (silent) {
Engine.killDhcpcd();
WpaSupplicant.kill();
} else {
String msg = context.getString(R.string.confirm_kill_backend);
AlertDialog.Builder dlgAlert = new AlertDialog.Builder(context,
R.style.Theme_RepWifiDialogTheme);
dlgAlert.setMessage(msg);
dlgAlert.setPositiveButton(context.getString(android.R.string.ok),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
killBackEnd(null, true);
return;
}
});
dlgAlert.setNegativeButton(context.getString(android.R.string.cancel),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int whichButton) {
return;
}
});
dlgAlert.setCancelable(false);
AlertDialog diag = dlgAlert.create();
diag.show();
return;
}
}
public static int getLogPriority() {
SharedPreferences sets = getSettings();
return Integer.parseInt(sets.getString("debug_priority", "3"));
}
public static boolean isProgbarEnabled() {
return getSettings().getBoolean("enable_progbar", true);
}
public static boolean isAutoConnectEnabled() {
return getSettings().getBoolean("enable_autoconnect", false);
}
public static String[] getDnss() {
String dns1 = getSettings().getString("dns1", dns1Default);
String dns2 = getSettings().getString("dns2", dns2Default);
if (dns1 == null || dns1.isEmpty()) {
return null;
}
return new String[] { dns1, dns2 };
}
public static SharedPreferences getSettings() {
return PreferenceManager.getDefaultSharedPreferences(currentContext);
}
// ----------------------------------------------------
// ----------- Initialization methods ---------------------------
public static boolean init(Context context) {
currentContext = context;
try {
colorThemeDark = currentContext.getResources().getColor(R.color.ThemeDark);
colorThemeLight = currentContext.getResources().getColor(R.color.ThemeLight);
msgNoSavedNetwork = currentContext.getResources().getString(
R.string.msg_no_saved_network);
colorBlack = currentContext.getResources().getColor(R.color.black);
APP_DATA_FOLDER = currentContext.getExternalFilesDir(null).getAbsolutePath();
dns1Default = currentContext.getResources().getString(R.string.dns1_default);
dns2Default = currentContext.getResources().getString(R.string.dns2_default);
initEngine();
initNetworkStorage();
return true;
} catch (Exception e) {
Utils.logError("Error initializing common resources.", e);
return false;
}
}
private static void initEngine() throws Exception {
connectionEngine = new Engine6p0();
String vers = android.os.Build.VERSION.RELEASE;
if (!vers.startsWith(Commons.v6p0)) {
showMessage(currentContext.getString(R.string.msg_os_unsupported));
}
}
private static void initNetworkStorage() throws Exception {
Commons.storage = new NetworkManager(getNetworkStorageFile());
}
// --------------------------------------------------------------
}
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