diff options
Diffstat (limited to 'app/src/main/java/se/leap/bitmaskclient/EipFragment.java')
| -rw-r--r-- | app/src/main/java/se/leap/bitmaskclient/EipFragment.java | 477 |
1 files changed, 477 insertions, 0 deletions
diff --git a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java new file mode 100644 index 00000000..414b1f2a --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java @@ -0,0 +1,477 @@ +/** + * Copyright (c) 2013 LEAP Encryption Access Project and contributers + * + * This program 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. + * + * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. + */ +package se.leap.bitmaskclient; + +import android.app.Activity; +import android.app.AlertDialog; +import android.content.ComponentName; +import android.content.Context; +import android.content.DialogInterface; +import android.content.Intent; +import android.content.ServiceConnection; +import android.content.SharedPreferences; +import android.graphics.ColorMatrix; +import android.graphics.ColorMatrixColorFilter; +import android.os.Bundle; +import android.os.Handler; +import android.os.IBinder; +import android.os.RemoteException; +import android.os.ResultReceiver; +import android.support.v4.app.Fragment; +import android.support.v7.widget.AppCompatImageView; +import android.util.Log; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.Button; +import android.widget.TextView; + +import java.util.Observable; +import java.util.Observer; + +import butterknife.ButterKnife; +import butterknife.InjectView; +import butterknife.OnClick; +import de.blinkt.openvpn.core.IOpenVPNServiceInternal; +import de.blinkt.openvpn.core.OpenVPNService; +import de.blinkt.openvpn.core.ProfileManager; +import de.blinkt.openvpn.core.VpnStatus; +import se.leap.bitmaskclient.eip.EIP; +import se.leap.bitmaskclient.eip.EipStatus; +import se.leap.bitmaskclient.eip.VoidVpnService; + +import static android.view.View.GONE; +import static android.view.View.VISIBLE; +import static de.blinkt.openvpn.core.ConnectionStatus.LEVEL_NONETWORK; +import static se.leap.bitmaskclient.Constants.EIP_ACTION_CHECK_CERT_VALIDITY; +import static se.leap.bitmaskclient.Constants.EIP_ACTION_START; +import static se.leap.bitmaskclient.Constants.EIP_ACTION_STOP; +import static se.leap.bitmaskclient.Constants.EIP_ACTION_STOP_BLOCKING_VPN; +import static se.leap.bitmaskclient.Constants.EIP_ACTION_UPDATE; +import static se.leap.bitmaskclient.Constants.EIP_NOTIFICATION; +import static se.leap.bitmaskclient.Constants.EIP_RECEIVER; +import static se.leap.bitmaskclient.Constants.EIP_REQUEST; +import static se.leap.bitmaskclient.Constants.EIP_RESTART_ON_BOOT; +import static se.leap.bitmaskclient.Constants.PROVIDER_ALLOWED_REGISTERED; +import static se.leap.bitmaskclient.Constants.PROVIDER_ALLOW_ANONYMOUS; +import static se.leap.bitmaskclient.Constants.PROVIDER_VPN_CERTIFICATE; +import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES; + +public class EipFragment extends Fragment implements Observer { + + public static String TAG = EipFragment.class.getSimpleName(); + + protected static final String IS_CONNECTED = TAG + ".is_connected"; + public static final String START_EIP_ON_BOOT = "start on boot"; + + private SharedPreferences preferences; + + @InjectView(R.id.background) + AppCompatImageView background; + + @InjectView(R.id.key) + AppCompatImageView key; + + @InjectView(R.id.cirle) + AppCompatImageView circle; + + @InjectView(R.id.vpn_main_button) + Button mainButton; + + @InjectView(R.id.routed_text) + TextView routedText; + + @InjectView(R.id.vpn_route) + TextView vpnRoute; + + private EIPReceiver eipReceiver; + private EipStatus eipStatus; + private boolean wantsToConnect; + + private IOpenVPNServiceInternal mService; + private ServiceConnection openVpnConnection = new ServiceConnection() { + + + + @Override + public void onServiceConnected(ComponentName className, + IBinder service) { + + mService = IOpenVPNServiceInternal.Stub.asInterface(service); + } + + @Override + public void onServiceDisconnected(ComponentName arg0) { + mService = null; + } + + }; + + public void onAttach(Context context) { + super.onAttach(context); + downloadEIPServiceConfig(); + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + eipStatus = EipStatus.getInstance(); + eipStatus.addObserver(this); + eipReceiver = new EIPReceiver(new Handler()); + preferences = getActivity().getSharedPreferences(SHARED_PREFERENCES, Context.MODE_PRIVATE); + } + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.eip_service_fragment, container, false); + ButterKnife.inject(this, view); + + Bundle arguments = getArguments(); + if (arguments != null && arguments.containsKey(START_EIP_ON_BOOT) && arguments.getBoolean(START_EIP_ON_BOOT)) { + startEipFromScratch(); + } + return view; + } + + @Override + public void onResume() { + super.onResume(); + //FIXME: avoid race conditions while checking certificate an logging in at about the same time + //eipCommand(Constants.EIP_ACTION_CHECK_CERT_VALIDITY); + handleNewState(); + bindOpenVpnService(); + } + + @Override + public void onPause() { + super.onPause(); + getActivity().unbindService(openVpnConnection); + } + + @Override + public void onSaveInstanceState(Bundle outState) { + outState.putBoolean(IS_CONNECTED, eipStatus.isConnected()); + super.onSaveInstanceState(outState); + } + + private void saveStatus(boolean restartOnBoot) { + preferences.edit().putBoolean(EIP_RESTART_ON_BOOT, restartOnBoot).apply(); + } + + @OnClick(R.id.vpn_main_button) + void onButtonClick() { + handleIcon(); + } + + @OnClick(R.id.key) + void onKeyClick() { + handleIcon(); + } + + @OnClick(R.id.cirle) + void onCircleClick() { + handleIcon(); + } + + void handleIcon() { + if (eipStatus.isConnected() || eipStatus.isConnecting()) + handleSwitchOff(); + else + handleSwitchOn(); + } + + private void handleSwitchOn() { + if (canStartEIP()) + startEipFromScratch(); + else if (canLogInToStartEIP()) { + wantsToConnect = true; + Bundle bundle = new Bundle(); + MainActivity.sessionDialog(bundle); + } else { + Log.d(TAG, "WHAT IS GOING ON HERE?!"); + // TODO: implement a fallback: check if vpncertificate was not downloaded properly or give + // a user feedback. A button that does nothing on click is not a good option + } + } + + private boolean canStartEIP() { + boolean certificateExists = !preferences.getString(PROVIDER_VPN_CERTIFICATE, "").isEmpty(); + boolean isAllowedAnon = preferences.getBoolean(PROVIDER_ALLOW_ANONYMOUS, false); + return (isAllowedAnon || certificateExists) && !eipStatus.isConnected() && !eipStatus.isConnecting(); + } + + private boolean canLogInToStartEIP() { + boolean isAllowedRegistered = preferences.getBoolean(PROVIDER_ALLOWED_REGISTERED, false); + boolean isLoggedIn = !LeapSRPSession.getToken().isEmpty(); + return isAllowedRegistered && !isLoggedIn && !eipStatus.isConnecting() && !eipStatus.isConnected(); + } + + private void handleSwitchOff() { + if (eipStatus.isConnecting()) { + askPendingStartCancellation(); + } else if (eipStatus.isConnected()) { + askToStopEIP(); + } + } + + private void askPendingStartCancellation() { + Activity activity = getActivity(); + AlertDialog.Builder alertBuilder = new AlertDialog.Builder(getActivity()); + alertBuilder.setTitle(activity.getString(R.string.eip_cancel_connect_title)) + .setMessage(activity.getString(R.string.eip_cancel_connect_text)) + .setPositiveButton((android.R.string.yes), new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + stopEipIfPossible(); + } + }) + .setNegativeButton(activity.getString(android.R.string.no), new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + } + }) + .show(); + } + + public void startEipFromScratch() { + wantsToConnect = false; + saveStatus(true); + eipCommand(EIP_ACTION_START); + } + + private void stop() { + saveStatus(false); + if (eipStatus.isBlockingVpnEstablished()) { + stopBlockingVpn(); + } + disconnect(); + } + + private void stopBlockingVpn() { + Log.d(TAG, "stop VoidVpn!"); + Activity activity = getActivity(); + Intent stopVoidVpnIntent = new Intent(activity, VoidVpnService.class); + stopVoidVpnIntent.setAction(EIP_ACTION_STOP_BLOCKING_VPN); + activity.startService(stopVoidVpnIntent); + } + + private void disconnect() { + ProfileManager.setConntectedVpnProfileDisconnected(getActivity()); + if (mService != null) { + try { + mService.stopVPN(false); + } catch (RemoteException e) { + VpnStatus.logException(e); + } + } + } + + protected void stopEipIfPossible() { + //FIXME: no need to start a service here! + eipCommand(EIP_ACTION_STOP); + } + + private void downloadEIPServiceConfig() { + ProviderAPIResultReceiver provider_api_receiver = new ProviderAPIResultReceiver(new Handler(), Dashboard.dashboardReceiver); + if(eipReceiver != null) + ProviderAPICommand.execute(Bundle.EMPTY, ProviderAPI.DOWNLOAD_EIP_SERVICE, provider_api_receiver); + } + + protected void askToStopEIP() { + Activity activity = getActivity(); + AlertDialog.Builder alertBuilder = new AlertDialog.Builder(activity); + alertBuilder.setTitle(activity.getString(R.string.eip_cancel_connect_title)) + .setMessage(activity.getString(R.string.eip_warning_browser_inconsistency)) + .setPositiveButton((android.R.string.yes), new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + stopEipIfPossible(); + } + }) + .setNegativeButton(activity.getString(android.R.string.no), new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + } + }) + .show(); + } + + protected void updateEipService() { + eipCommand(EIP_ACTION_UPDATE); + } + + /** + * Send a command to EIP + * + * @param action A valid String constant from EIP class representing an Intent + * filter for the EIP class + */ + private void eipCommand(String action) { + Activity activity = getActivity(); + // TODO validate "action"...how do we get the list of intent-filters for a class via Android API? + Intent vpn_intent = new Intent(activity.getApplicationContext(), EIP.class); + vpn_intent.setAction(action); + vpn_intent.putExtra(EIP_RECEIVER, eipReceiver); + activity.startService(vpn_intent); + } + + @Override + public void update(Observable observable, Object data) { + if (observable instanceof EipStatus) { + eipStatus = (EipStatus) observable; + Activity activity = getActivity(); + if (activity != null) { + activity.runOnUiThread(new Runnable() { + @Override + public void run() { + handleNewState(); + } + }); + } else { + Log.e("EipFragment", "activity is null"); + } + } + } + + private void handleNewState() { + Activity activity = getActivity(); + if (eipStatus.isConnecting()) { + mainButton.setText(activity.getString(android.R.string.cancel)); + key.setImageResource(R.drawable.vpn_connecting); + routedText.setVisibility(GONE); + vpnRoute.setVisibility(GONE); + colorBackgroundALittle(); + } else if (eipStatus.isConnected() || isOpenVpnRunningWithoutNetwork()) { + mainButton.setText(activity.getString(R.string.vpn_button_turn_off)); + key.setImageResource(R.drawable.vpn_connected); + routedText.setVisibility(VISIBLE); + vpnRoute.setVisibility(VISIBLE); + vpnRoute.setText(ConfigHelper.getProviderName(preferences)); + colorBackground(); + } else { + mainButton.setText(activity.getString(R.string.vpn_button_turn_on)); + key.setImageResource(R.drawable.vpn_disconnected); + routedText.setVisibility(GONE); + vpnRoute.setVisibility(GONE); + greyscaleBackground(); + } + } + + private boolean isOpenVpnRunningWithoutNetwork() { + boolean isRunning = false; + try { + isRunning = eipStatus.getLevel() == LEVEL_NONETWORK && + mService.isVpnRunning(); + } catch (Exception e) { + //eat me + e.printStackTrace(); + } + + return isRunning; + } + + private void bindOpenVpnService() { + Activity activity = getActivity(); + Intent intent = new Intent(activity, OpenVPNService.class); + intent.setAction(OpenVPNService.START_SERVICE); + activity.bindService(intent, openVpnConnection, Context.BIND_AUTO_CREATE); + } + + protected class EIPReceiver extends ResultReceiver { + + EIPReceiver(Handler handler) { + super(handler); + } + + @Override + protected void onReceiveResult(int resultCode, Bundle resultData) { + super.onReceiveResult(resultCode, resultData); + + String request = resultData.getString(EIP_REQUEST); + + if (request == null) { + return; + } + + switch (request) { + case EIP_ACTION_START: + switch (resultCode) { + case Activity.RESULT_OK: + break; + case Activity.RESULT_CANCELED: + break; + } + break; + case EIP_ACTION_STOP: + switch (resultCode) { + case Activity.RESULT_OK: + stop(); + break; + case Activity.RESULT_CANCELED: + break; + } + break; + case EIP_NOTIFICATION: + switch (resultCode) { + case Activity.RESULT_OK: + break; + case Activity.RESULT_CANCELED: + break; + } + break; + case EIP_ACTION_CHECK_CERT_VALIDITY: + switch (resultCode) { + case Activity.RESULT_OK: + break; + case Activity.RESULT_CANCELED: + Dashboard.downloadVpnCertificate(); + break; + } + break; + case EIP_ACTION_UPDATE: + switch (resultCode) { + case Activity.RESULT_OK: + if (wantsToConnect) + startEipFromScratch(); + break; + case Activity.RESULT_CANCELED: + handleNewState(); + break; + } + } + } + } + + private void greyscaleBackground() { + ColorMatrix matrix = new ColorMatrix(); + matrix.setSaturation(0); + ColorMatrixColorFilter cf = new ColorMatrixColorFilter(matrix); + background.setColorFilter(cf); + background.setImageAlpha(255); + } + + private void colorBackgroundALittle() { + background.setColorFilter(null); + background.setImageAlpha(144); + } + + private void colorBackground() { + background.setColorFilter(null); + background.setImageAlpha(255); + } + +} |