| /* |
| * 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.content.Context; |
| import android.content.DialogInterface; |
| import android.net.IConnectivityManager; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.util.Log; |
| import android.view.View; |
| import android.widget.TextView; |
| |
| import com.android.internal.app.AlertActivity; |
| import com.android.internal.net.VpnConfig; |
| |
| import java.io.DataInputStream; |
| import java.io.FileInputStream; |
| |
| public class ManageDialog extends AlertActivity implements |
| DialogInterface.OnClickListener, Handler.Callback { |
| private static final String TAG = "VpnManage"; |
| |
| private VpnConfig mConfig; |
| |
| private IConnectivityManager mService; |
| |
| private TextView mDuration; |
| private TextView mDataTransmitted; |
| private TextView mDataReceived; |
| private boolean mDataRowsHidden; |
| |
| private Handler mHandler; |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| |
| if (getCallingPackage() != null) { |
| Log.e(TAG, getCallingPackage() + " cannot start this activity"); |
| finish(); |
| return; |
| } |
| |
| try { |
| |
| mService = IConnectivityManager.Stub.asInterface( |
| ServiceManager.getService(Context.CONNECTIVITY_SERVICE)); |
| |
| mConfig = mService.getVpnConfig(); |
| |
| // mConfig can be null if we are a restricted user, in that case don't show this dialog |
| if (mConfig == null) { |
| finish(); |
| return; |
| } |
| |
| View view = View.inflate(this, R.layout.manage, null); |
| if (mConfig.session != null) { |
| ((TextView) view.findViewById(R.id.session)).setText(mConfig.session); |
| } |
| mDuration = (TextView) view.findViewById(R.id.duration); |
| mDataTransmitted = (TextView) view.findViewById(R.id.data_transmitted); |
| mDataReceived = (TextView) view.findViewById(R.id.data_received); |
| mDataRowsHidden = true; |
| |
| if (mConfig.legacy) { |
| mAlertParams.mTitle = getText(R.string.legacy_title); |
| } else { |
| mAlertParams.mTitle = VpnConfig.getVpnLabel(this, mConfig.user); |
| } |
| if (mConfig.configureIntent != null) { |
| mAlertParams.mPositiveButtonText = getText(R.string.configure); |
| mAlertParams.mPositiveButtonListener = this; |
| } |
| mAlertParams.mNeutralButtonText = getText(R.string.disconnect); |
| mAlertParams.mNeutralButtonListener = this; |
| mAlertParams.mNegativeButtonText = getText(android.R.string.cancel); |
| mAlertParams.mNegativeButtonListener = this; |
| mAlertParams.mView = view; |
| setupAlert(); |
| |
| if (mHandler == null) { |
| mHandler = new Handler(this); |
| } |
| mHandler.sendEmptyMessage(0); |
| } catch (Exception e) { |
| Log.e(TAG, "onResume", e); |
| finish(); |
| } |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| if (!isFinishing()) { |
| finish(); |
| } |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| try { |
| if (which == DialogInterface.BUTTON_POSITIVE) { |
| mConfig.configureIntent.send(); |
| } else if (which == DialogInterface.BUTTON_NEUTRAL) { |
| if (mConfig.legacy) { |
| mService.prepareVpn(VpnConfig.LEGACY_VPN, VpnConfig.LEGACY_VPN); |
| } else { |
| mService.prepareVpn(mConfig.user, VpnConfig.LEGACY_VPN); |
| } |
| } |
| } catch (Exception e) { |
| Log.e(TAG, "onClick", e); |
| finish(); |
| } |
| } |
| |
| @Override |
| public boolean handleMessage(Message message) { |
| mHandler.removeMessages(0); |
| |
| if (!isFinishing()) { |
| if (mConfig.startTime != -1) { |
| long seconds = (SystemClock.elapsedRealtime() - mConfig.startTime) / 1000; |
| mDuration.setText(String.format("%02d:%02d:%02d", |
| seconds / 3600, seconds / 60 % 60, seconds % 60)); |
| } |
| |
| String[] numbers = getNumbers(); |
| if (numbers != null) { |
| // First unhide the related data rows. |
| if (mDataRowsHidden) { |
| findViewById(R.id.data_transmitted_row).setVisibility(View.VISIBLE); |
| findViewById(R.id.data_received_row).setVisibility(View.VISIBLE); |
| mDataRowsHidden = false; |
| } |
| |
| // [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])); |
| } |
| mHandler.sendEmptyMessageDelayed(0, 1000); |
| } |
| return true; |
| } |
| |
| private String[] getNumbers() { |
| DataInputStream in = null; |
| try { |
| // See dev_seq_printf_stats() in net/core/dev.c. |
| in = new DataInputStream(new FileInputStream("/proc/net/dev")); |
| String prefix = mConfig.interfaze + ':'; |
| |
| while (true) { |
| String line = in.readLine().trim(); |
| if (line.startsWith(prefix)) { |
| String[] numbers = line.substring(prefix.length()).split(" +"); |
| for (int i = 1; i < 17; ++i) { |
| if (!numbers[i].equals("0")) { |
| return numbers; |
| } |
| } |
| break; |
| } |
| } |
| } catch (Exception e) { |
| // ignore |
| } finally { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| // ignore |
| } |
| } |
| return null; |
| } |
| } |