| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.vpndialogs; |
| |
| import android.app.Activity; |
| import android.app.AlertDialog; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.net.ConnectivityManager; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.SystemClock; |
| import android.util.Log; |
| import android.view.View; |
| import android.widget.Button; |
| import android.widget.CompoundButton; |
| import android.widget.ImageView; |
| import android.widget.TextView; |
| |
| import java.io.DataInputStream; |
| import java.io.FileInputStream; |
| |
| public class ManageDialog extends Activity implements |
| DialogInterface.OnClickListener, DialogInterface.OnDismissListener { |
| private static final String TAG = "VpnManage"; |
| |
| private String mPackageName; |
| private String mInterfaceName; |
| private long mStartTime; |
| |
| private ConnectivityManager mService; |
| |
| private AlertDialog mDialog; |
| private TextView mDuration; |
| private TextView mDataTransmitted; |
| private TextView mDataReceived; |
| |
| private Updater mUpdater; |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| try { |
| Intent intent = getIntent(); |
| // TODO: Move constants into VpnBuilder. |
| mPackageName = intent.getStringExtra("packageName"); |
| mInterfaceName = intent.getStringExtra("interfaceName"); |
| mStartTime = intent.getLongExtra("startTime", 0); |
| |
| mService = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); |
| |
| PackageManager pm = getPackageManager(); |
| ApplicationInfo app = pm.getApplicationInfo(mPackageName, 0); |
| |
| View view = View.inflate(this, R.layout.manage, null); |
| String session = intent.getStringExtra("session"); |
| if (session != null) { |
| ((TextView) view.findViewById(R.id.session)).setText(session); |
| } |
| mDuration = (TextView) view.findViewById(R.id.duration); |
| mDataTransmitted = (TextView) view.findViewById(R.id.data_transmitted); |
| mDataReceived = (TextView) view.findViewById(R.id.data_received); |
| |
| mDialog = new AlertDialog.Builder(this) |
| .setIcon(app.loadIcon(pm)) |
| .setTitle(app.loadLabel(pm)) |
| .setView(view) |
| .setPositiveButton(R.string.configure, this) |
| .setNeutralButton(R.string.disconnect, this) |
| .setNegativeButton(android.R.string.cancel, this) |
| .create(); |
| mDialog.setOnDismissListener(this); |
| mDialog.show(); |
| |
| mUpdater = new Updater(); |
| mUpdater.sendEmptyMessage(0); |
| } catch (Exception e) { |
| Log.e(TAG, "onResume", e); |
| finish(); |
| } |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| if (mDialog != null) { |
| mDialog.setOnDismissListener(null); |
| mDialog.dismiss(); |
| } |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| try { |
| if (which == AlertDialog.BUTTON_POSITIVE) { |
| Intent intent = new Intent(Intent.ACTION_MAIN); |
| intent.setPackage(mPackageName); |
| startActivity(intent); |
| } else if (which == AlertDialog.BUTTON_NEUTRAL) { |
| mService.prepareVpn(mPackageName); |
| } |
| } catch (Exception e) { |
| Log.e(TAG, "onClick", e); |
| } |
| } |
| |
| @Override |
| public void onDismiss(DialogInterface dialog) { |
| finish(); |
| } |
| |
| private class Updater extends Handler { |
| public void handleMessage(Message message) { |
| removeMessages(0); |
| |
| if (mDialog.isShowing()) { |
| if (mStartTime != 0) { |
| long seconds = (SystemClock.elapsedRealtime() - mStartTime) / 1000; |
| mDuration.setText(String.format("%02d:%02d:%02d", |
| seconds / 3600, seconds / 60 % 60, seconds % 60)); |
| } |
| |
| String[] numbers = getStatistics(); |
| if (numbers != null) { |
| // [1] and [2] are received data in bytes and packets. |
| mDataReceived.setText(getString(R.string.data_value_format, |
| numbers[1], numbers[2])); |
| |
| // [9] and [10] are transmitted data in bytes and packets. |
| mDataTransmitted.setText(getString(R.string.data_value_format, |
| numbers[9], numbers[10])); |
| } |
| sendEmptyMessageDelayed(0, 1000); |
| } |
| } |
| } |
| |
| private String[] getStatistics() { |
| DataInputStream in = null; |
| try { |
| // See dev_seq_printf_stats() in net/core/dev.c. |
| in = new DataInputStream(new FileInputStream("/proc/net/dev")); |
| String prefix = mInterfaceName + ':'; |
| |
| while (true) { |
| String line = in.readLine().trim(); |
| if (line.startsWith(prefix)) { |
| String[] numbers = line.substring(prefix.length()).split(" +"); |
| if (numbers.length == 17) { |
| return numbers; |
| } |
| break; |
| } |
| } |
| } catch (Exception e) { |
| // ignore |
| } finally { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| // ignore |
| } |
| } |
| return null; |
| } |
| } |