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/**
* Copyright (c) 2018 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.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import androidx.annotation.Nullable;
import androidx.fragment.app.DialogFragment;
import androidx.fragment.app.FragmentTransaction;
import androidx.localbroadcastmanager.content.LocalBroadcastManager;
import org.jetbrains.annotations.NotNull;
import org.json.JSONException;
import org.json.JSONObject;
import static se.leap.bitmaskclient.Constants.BROADCAST_PROVIDER_API_EVENT;
import static se.leap.bitmaskclient.Constants.PROVIDER_KEY;
import static se.leap.bitmaskclient.Constants.REQUEST_CODE_CONFIGURE_LEAP;
import static se.leap.bitmaskclient.ProviderAPI.DOWNLOAD_VPN_CERTIFICATE;
import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
import static se.leap.bitmaskclient.ProviderAPI.UPDATE_PROVIDER_DETAILS;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.PENDING_SHOW_FAILED_DIALOG;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.PENDING_SHOW_PROVIDER_DETAILS;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.PROVIDER_NOT_SET;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.SETTING_UP_PROVIDER;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.SHOWING_PROVIDER_DETAILS;
import static se.leap.bitmaskclient.ProviderSetupInterface.ProviderConfigState.SHOW_FAILED_DIALOG;
/**
* Created by cyberta on 19.08.18.
*/
public abstract class ProviderSetupBaseActivity extends ConfigWizardBaseActivity implements ProviderSetupInterface, ProviderSetupFailedDialog.DownloadFailedDialogInterface {
final public static String TAG = "PoviderSetupActivity";
final private static String ACTIVITY_STATE = "ACTIVITY STATE";
final private static String REASON_TO_FAIL = "REASON TO FAIL";
protected ProviderSetupInterface.ProviderConfigState providerConfigState = PROVIDER_NOT_SET;
private ProviderManager providerManager;
private FragmentManagerEnhanced fragmentManager;
private String reasonToFail;
protected boolean testNewURL;
private ProviderApiSetupBroadcastReceiver providerAPIBroadcastReceiver;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
fragmentManager = new FragmentManagerEnhanced(getSupportFragmentManager());
providerManager = ProviderManager.getInstance(getAssets(), getExternalFilesDir(null));
setUpProviderAPIResultReceiver();
}
@Override
protected void onResume() {
super.onResume();
Log.d(TAG, "resuming with ConfigState: " + providerConfigState.toString());
if (SETTING_UP_PROVIDER == providerConfigState) {
showProgressBar();
} else if (PENDING_SHOW_FAILED_DIALOG == providerConfigState) {
showProgressBar();
showDownloadFailedDialog();
} else if (SHOW_FAILED_DIALOG == providerConfigState) {
showProgressBar();
} else if (SHOWING_PROVIDER_DETAILS == providerConfigState) {
cancelSettingUpProvider();
} else if (PENDING_SHOW_PROVIDER_DETAILS == providerConfigState) {
showProviderDetails();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (providerAPIBroadcastReceiver != null) {
LocalBroadcastManager.getInstance(this).unregisterReceiver(providerAPIBroadcastReceiver);
}
providerAPIBroadcastReceiver = null;
}
@Override
public void onSaveInstanceState(@NotNull Bundle outState) {
outState.putString(ACTIVITY_STATE, providerConfigState.toString());
outState.putString(REASON_TO_FAIL, reasonToFail);
super.onSaveInstanceState(outState);
}
protected FragmentManagerEnhanced getFragmentManagerEnhanced() {
return fragmentManager;
}
protected ProviderManager getProviderManager() {
return providerManager;
}
protected void setProviderConfigState(ProviderConfigState state) {
this.providerConfigState = state;
}
protected void setProvider(Provider provider) {
this.provider = provider;
}
// --------- ProviderSetupInterface ---v
@Override
public Provider getProvider() {
return provider;
}
@Override
public ProviderConfigState getConfigState() {
return providerConfigState;
}
@Override
public void handleProviderSetupFailed(Bundle resultData) {
reasonToFail = resultData.getString(ERRORS);
showDownloadFailedDialog();
}
@Override
public void handleIncorrectlyDownloadedCertificate() {
cancelSettingUpProvider();
setResult(RESULT_CANCELED, new Intent(getConfigState().toString()));
}
// -------- DownloadFailedDialogInterface ---v
@Override
public void cancelSettingUpProvider() {
providerConfigState = PROVIDER_NOT_SET;
provider = null;
ProviderObservable.getInstance().setProviderForDns(null);
hideProgressBar();
}
@Override
public void updateProviderDetails() {
providerConfigState = SETTING_UP_PROVIDER;
ProviderAPICommand.execute(this, UPDATE_PROVIDER_DETAILS, provider);
}
protected void restoreState(Bundle savedInstanceState) {
super.restoreState(savedInstanceState);
if (savedInstanceState == null) {
return;
}
this.providerConfigState = ProviderSetupInterface.ProviderConfigState.valueOf(savedInstanceState.getString(ACTIVITY_STATE, PROVIDER_NOT_SET.toString()));
if (savedInstanceState.containsKey(REASON_TO_FAIL)) {
reasonToFail = savedInstanceState.getString(REASON_TO_FAIL);
}
}
private void setUpProviderAPIResultReceiver() {
providerAPIBroadcastReceiver = new ProviderApiSetupBroadcastReceiver(this);
IntentFilter updateIntentFilter = new IntentFilter(BROADCAST_PROVIDER_API_EVENT);
updateIntentFilter.addCategory(Intent.CATEGORY_DEFAULT);
LocalBroadcastManager.getInstance(this).registerReceiver(providerAPIBroadcastReceiver, updateIntentFilter);
}
/**
* Asks ProviderApiService to download an anonymous (anon) VPN certificate.
*/
protected void downloadVpnCertificate() {
ProviderAPICommand.execute(this, DOWNLOAD_VPN_CERTIFICATE, provider);
}
/**
* Once selected a provider, this fragment offers the user to log in,
* use it anonymously (if possible)
* or cancel his/her election pressing the back button.
*/
public void showProviderDetails() {
// show only if current activity is shown
if (isActivityShowing &&
providerConfigState != SHOWING_PROVIDER_DETAILS) {
providerConfigState = SHOWING_PROVIDER_DETAILS;
Intent intent = new Intent(this, ProviderDetailActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
intent.putExtra(PROVIDER_KEY, provider);
startActivityForResult(intent, REQUEST_CODE_CONFIGURE_LEAP);
} else {
providerConfigState = PENDING_SHOW_PROVIDER_DETAILS;
}
}
/**
* Shows an error dialog, if configuring of a provider failed.
*/
public void showDownloadFailedDialog() {
try {
providerConfigState = SHOW_FAILED_DIALOG;
FragmentTransaction fragmentTransaction = fragmentManager.removePreviousFragment(ProviderSetupFailedDialog.TAG);
DialogFragment newFragment;
try {
JSONObject errorJson = new JSONObject(reasonToFail);
newFragment = ProviderSetupFailedDialog.newInstance(provider, errorJson, testNewURL);
} catch (JSONException e) {
e.printStackTrace();
newFragment = ProviderSetupFailedDialog.newInstance(provider, reasonToFail);
} catch (NullPointerException e) {
//reasonToFail was null
return;
}
newFragment.show(fragmentTransaction, ProviderSetupFailedDialog.TAG);
} catch (IllegalStateException e) {
e.printStackTrace();
providerConfigState = PENDING_SHOW_FAILED_DIALOG;
}
}
}
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