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package de.blinkt.openvpn.api;
import java.io.IOException;
import java.io.StringReader;
import java.util.LinkedList;
import java.util.List;
import android.app.Service;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.VpnService;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteCallbackList;
import android.os.RemoteException;
import de.blinkt.openvpn.R;
import de.blinkt.openvpn.VpnProfile;
import de.blinkt.openvpn.core.ConfigParser;
import de.blinkt.openvpn.core.ConfigParser.ConfigParseError;
import de.blinkt.openvpn.core.OpenVPN;
import de.blinkt.openvpn.core.OpenVPN.ConnectionStatus;
import de.blinkt.openvpn.core.OpenVPN.StateListener;
import de.blinkt.openvpn.core.OpenVpnService;
import de.blinkt.openvpn.core.OpenVpnService.LocalBinder;
import de.blinkt.openvpn.core.ProfileManager;
import de.blinkt.openvpn.core.VPNLaunchHelper;
public class ExternalOpenVPNService extends Service implements StateListener {
final RemoteCallbackList<IOpenVPNStatusCallback> mCallbacks =
new RemoteCallbackList<IOpenVPNStatusCallback>();
private OpenVpnService mService;
private ExternalAppDatabase mExtAppDb;
private ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className,
IBinder service) {
// We've bound to LocalService, cast the IBinder and get LocalService instance
LocalBinder binder = (LocalBinder) service;
mService = binder.getService();
}
@Override
public void onServiceDisconnected(ComponentName arg0) {
mService =null;
}
};
@Override
public void onCreate() {
super.onCreate();
OpenVPN.addStateListener(this);
mExtAppDb = new ExternalAppDatabase(this);
Intent intent = new Intent(getBaseContext(), OpenVpnService.class);
intent.setAction(OpenVpnService.START_SERVICE);
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
}
private final IOpenVPNAPIService.Stub mBinder = new IOpenVPNAPIService.Stub() {
private boolean checkOpenVPNPermission() throws SecurityRemoteException{
PackageManager pm = getPackageManager();
for (String apppackage:mExtAppDb.getExtAppList()) {
ApplicationInfo app;
try {
app = pm.getApplicationInfo(apppackage, 0);
if (Binder.getCallingUid() == app.uid) {
return true;
}
} catch (NameNotFoundException e) {
// App not found. Remove it from the list
mExtAppDb.removeApp(apppackage);
e.printStackTrace();
}
}
throw new SecurityException("Unauthorized OpenVPN API Caller");
}
@Override
public List<APIVpnProfile> getProfiles() throws RemoteException {
checkOpenVPNPermission();
ProfileManager pm = ProfileManager.getInstance(getBaseContext());
List<APIVpnProfile> profiles = new LinkedList<APIVpnProfile>();
for(VpnProfile vp: pm.getProfiles())
profiles.add(new APIVpnProfile(vp.getUUIDString(),vp.mName,vp.mUserEditable));
return profiles;
}
@Override
public void startProfile(String profileUUID) throws RemoteException {
checkOpenVPNPermission();
Intent shortVPNIntent = new Intent(Intent.ACTION_MAIN);
shortVPNIntent.setClass(getBaseContext(),de.blinkt.openvpn.LaunchVPN.class);
shortVPNIntent.putExtra(de.blinkt.openvpn.LaunchVPN.EXTRA_KEY,profileUUID);
shortVPNIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(shortVPNIntent);
}
public void startVPN(String inlineconfig) throws RemoteException {
checkOpenVPNPermission();
ConfigParser cp = new ConfigParser();
try {
cp.parseConfig(new StringReader(inlineconfig));
VpnProfile vp = cp.convertProfile();
if(vp.checkProfile(getApplicationContext()) != R.string.no_error_found)
throw new RemoteException(getString(vp.checkProfile(getApplicationContext())));
ProfileManager.setTemporaryProfile(vp);
VPNLaunchHelper.startOpenVpn(vp, getBaseContext());
} catch (IOException e) {
throw new RemoteException(e.getMessage());
} catch (ConfigParseError e) {
throw new RemoteException(e.getMessage());
}
}
@Override
public boolean addVPNProfile(String name, String config) throws RemoteException {
checkOpenVPNPermission();
ConfigParser cp = new ConfigParser();
try {
cp.parseConfig(new StringReader(config));
VpnProfile vp = cp.convertProfile();
vp.mName = name;
ProfileManager pm = ProfileManager.getInstance(getBaseContext());
pm.addProfile(vp);
} catch (IOException e) {
e.printStackTrace();
return false;
} catch (ConfigParseError e) {
e.printStackTrace();
return false;
}
return true;
}
@Override
public Intent prepare(String packagename) {
if (new ExternalAppDatabase(ExternalOpenVPNService.this).isAllowed(packagename))
return null;
Intent intent = new Intent();
intent.setClass(ExternalOpenVPNService.this, ConfirmDialog.class);
return intent;
}
@Override
public boolean hasPermission() throws RemoteException {
checkOpenVPNPermission();
return VpnService.prepare(ExternalOpenVPNService.this)==null;
}
@Override
public void registerStatusCallback(IOpenVPNStatusCallback cb)
throws RemoteException {
checkOpenVPNPermission();
if (cb != null) mCallbacks.register(cb);
}
@Override
public void unregisterStatusCallback(IOpenVPNStatusCallback cb)
throws RemoteException {
checkOpenVPNPermission();
if (cb != null) mCallbacks.unregister(cb);
}
@Override
public void disconnect() throws RemoteException {
checkOpenVPNPermission();
mService.getManagement().stopVPN();
}
};
@Override
public IBinder onBind(Intent intent) {
return mBinder;
}
@Override
public void onDestroy() {
super.onDestroy();
mCallbacks.kill();
unbindService(mConnection);
OpenVPN.removeStateListener(this);
}
@Override
public void updateState(String state, String logmessage, int resid, ConnectionStatus level) {
// Broadcast to all clients the new value.
final int N = mCallbacks.beginBroadcast();
for (int i=0; i<N; i++) {
try {
mCallbacks.getBroadcastItem(i).newStatus(state,logmessage);
} catch (RemoteException e) {
// The RemoteCallbackList will take care of removing
// the dead object for us.
}
}
mCallbacks.finishBroadcast();
}
}
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