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/*
* Copyright (c) 2012-2016 Arne Schwabe
* Distributed under the GNU GPL v2 with additional terms. For full terms see the file doc/LICENSE.txt
*/
package de.blinkt.openvpn.core;
import android.app.ActivityManager;
import android.app.ApplicationExitInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Build;
import android.os.IBinder;
import android.os.ParcelFileDescriptor;
import android.os.RemoteException;
import android.util.Log;
import androidx.annotation.RequiresApi;
import de.blinkt.openvpn.BuildConfig;
import de.blinkt.openvpn.core.VpnStatus.LogLevel;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.util.List;
/**
* Created by arne on 09.11.16.
*/
public class StatusListener implements VpnStatus.LogListener {
private final IStatusCallbacks mCallback = new IStatusCallbacks.Stub() {
@Override
public void newLogItem(LogItem item) throws RemoteException {
VpnStatus.newLogItem(item);
}
@Override
public void updateStateString(String state, String msg, int resid, ConnectionStatus
level, Intent intent) throws RemoteException {
Intent newIntent = reCreateIntent(intent);
VpnStatus.updateStateString(state, msg, resid, level, newIntent);
}
private Intent reCreateIntent(Intent intent) {
/* To avoid UnsafeIntentLaunchViolation we recreate the intent that we passed
* to ourselves via the AIDL interface */
if (intent == null)
return null;
Intent newIntent = new Intent(intent.getAction(), intent.getData());
if (intent.getExtras() != null)
newIntent.putExtras(intent.getExtras());
return newIntent;
}
@Override
public void updateByteCount(long inBytes, long outBytes) throws RemoteException {
VpnStatus.updateByteCount(inBytes, outBytes);
}
@Override
public void connectedVPN(String uuid) throws RemoteException {
VpnStatus.setConnectedVPNProfile(uuid);
}
};
private File mCacheDir;
private final ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className,
IBinder service) {
// We've bound to LocalService, cast the IBinder and get LocalService instance
IServiceStatus serviceStatus = IServiceStatus.Stub.asInterface(service);
try {
/* Check if this a local service ... */
if (service.queryLocalInterface("de.blinkt.openvpn.core.IServiceStatus") == null) {
// Not a local service
VpnStatus.setConnectedVPNProfile(serviceStatus.getLastConnectedVPN());
VpnStatus.setTrafficHistory(serviceStatus.getTrafficHistory());
ParcelFileDescriptor pfd = serviceStatus.registerStatusCallback(mCallback);
DataInputStream fd = new DataInputStream(new ParcelFileDescriptor.AutoCloseInputStream(pfd));
short len = fd.readShort();
byte[] buf = new byte[65336];
while (len != 0x7fff) {
fd.readFully(buf, 0, len);
LogItem logitem = new LogItem(buf, len);
VpnStatus.newLogItem(logitem, false);
len = fd.readShort();
}
fd.close();
pfd.close();
} else {
VpnStatus.initLogCache(mCacheDir);
/* Set up logging to Logcat with a context) */
if (BuildConfig.DEBUG || BuildConfig.FLAVOR.equals("skeleton")) {
VpnStatus.addLogListener(StatusListener.this);
}
}
} catch (RemoteException | IOException e) {
e.printStackTrace();
VpnStatus.logException(e);
}
}
@Override
public void onServiceDisconnected(ComponentName arg0) {
VpnStatus.removeLogListener(StatusListener.this);
}
};
private Context mContext;
void init(Context c) {
Intent intent = new Intent(c, OpenVPNStatusService.class);
intent.setAction(OpenVPNService.START_SERVICE);
mCacheDir = c.getCacheDir();
c.bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
this.mContext = c;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
logLatestExitReasons(c);
}
@RequiresApi(Build.VERSION_CODES.R)
private void logLatestExitReasons(Context c) {
ActivityManager activityManager = (ActivityManager) c.getSystemService(Context.ACTIVITY_SERVICE);
List<ApplicationExitInfo> exitReasons = activityManager.getHistoricalProcessExitReasons(null, 0, 5);
ApplicationExitInfo lastguiexit = null;
ApplicationExitInfo lastserviceexit = null;
for (ApplicationExitInfo aei : exitReasons) {
if (aei.getProcessName().endsWith(":openvpn")) {
if (lastserviceexit == null || aei.getTimestamp() > lastserviceexit.getTimestamp())
lastserviceexit = aei;
} else {
if (lastguiexit == null || aei.getTimestamp() > lastguiexit.getTimestamp())
lastguiexit = aei;
}
}
logExitNotification(lastserviceexit, "Last exit reason reported by Android for Service Process: ");
logExitNotification(lastguiexit, "Last exit reason reported by Android for UI Process: ");
}
private void logExitNotification(ApplicationExitInfo aei, String s) {
if (aei != null) {
LogItem li = new LogItem(LogLevel.DEBUG, s + aei, aei.getTimestamp());
VpnStatus.newLogItemIfUnique(li);
}
}
@Override
public void newLog(LogItem logItem) {
switch (logItem.getLogLevel()) {
case INFO:
Log.i("OpenVPN", logItem.getString(mContext));
break;
case DEBUG:
Log.d("OpenVPN", logItem.getString(mContext));
break;
case ERROR:
Log.e("OpenVPN", logItem.getString(mContext));
break;
case VERBOSE:
Log.v("OpenVPN", logItem.getString(mContext));
break;
case WARNING:
default:
Log.w("OpenVPN", logItem.getString(mContext));
break;
}
}
}
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