diff options
author | Parménides GV <parmegv@sdf.org> | 2015-06-16 11:28:05 +0200 |
---|---|---|
committer | Parménides GV <parmegv@sdf.org> | 2015-06-16 11:28:05 +0200 |
commit | 66c79953db6876ec17a7ebf50dc4fd07d24fae37 (patch) | |
tree | 67075abe6ea28f7fc7213f654b86464b13507058 /app/src/insecure/java/se/leap/bitmaskclient | |
parent | 1f41fec6765e49838141ad29151713c7ac3dd17c (diff) | |
parent | e533cf6939e3ea4233aa8a82812f8ce5fcb565ca (diff) |
Merge branch 'develop'0.9.4
Diffstat (limited to 'app/src/insecure/java/se/leap/bitmaskclient')
5 files changed, 1785 insertions, 0 deletions
diff --git a/app/src/insecure/java/se/leap/bitmaskclient/ConfigurationWizard.java b/app/src/insecure/java/se/leap/bitmaskclient/ConfigurationWizard.java new file mode 100644 index 00000000..2505d37b --- /dev/null +++ b/app/src/insecure/java/se/leap/bitmaskclient/ConfigurationWizard.java @@ -0,0 +1,463 @@ +/** + * Copyright (c) 2013 LEAP Encryption Access Project and contributors + * + * 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.*; +import android.content.*; +import android.os.*; +import android.view.*; +import android.widget.*; + +import com.pedrogomez.renderers.*; + +import java.net.*; +import java.util.*; + +import butterknife.*; + +import org.jetbrains.annotations.*; +import org.json.*; + +import javax.inject.*; + +import se.leap.bitmaskclient.DownloadFailedDialog.DownloadFailedDialogInterface; +import se.leap.bitmaskclient.NewProviderDialog.NewProviderDialogInterface; +import se.leap.bitmaskclient.ProviderAPIResultReceiver.Receiver; +import se.leap.bitmaskclient.ProviderDetailFragment.ProviderDetailFragmentInterface; +import se.leap.bitmaskclient.ProviderListContent.ProviderItem; +import se.leap.bitmaskclient.eip.*; +import se.leap.bitmaskclient.userstatus.SessionDialog; + +/** + * Activity that builds and shows the list of known available providers. + * <p/> + * It also allows the user to enter custom providers with a button. + * + * @author parmegv + */ +public class ConfigurationWizard extends Activity + implements NewProviderDialogInterface, ProviderDetailFragmentInterface, DownloadFailedDialogInterface, Receiver { + + @InjectView(R.id.progressbar_configuration_wizard) + ProgressBar mProgressBar; + @InjectView(R.id.progressbar_description) + TextView progressbar_description; + + @InjectView(R.id.provider_list) + ListView provider_list_view; + @Inject + ProviderListAdapter adapter; + + private ProviderManager provider_manager; + private Intent mConfigState = new Intent(); + private Provider selected_provider; + + final public static String TAG = ConfigurationWizard.class.getSimpleName(); + + final protected static String PROVIDER_SET = "PROVIDER SET"; + final protected static String SERVICES_RETRIEVED = "SERVICES RETRIEVED"; + + final private static String PROGRESSBAR_TEXT = TAG + "PROGRESSBAR_TEXT"; + final private static String PROGRESSBAR_NUMBER = TAG + "PROGRESSBAR_NUMBER"; + + public ProviderAPIResultReceiver providerAPI_result_receiver; + private ProviderAPIBroadcastReceiver_Update providerAPI_broadcast_receiver_update; + + private static SharedPreferences preferences; + FragmentManagerEnhanced fragment_manager; + private static boolean setting_up_provider = false; + private String progressbar_text = ""; + private String provider_name = ""; + private int progress = -1; + + private void initProviderList() { + List<Renderer<Provider>> prototypes = new ArrayList<>(); + prototypes.add(new ProviderRenderer(this)); + ProviderRendererBuilder providerRendererBuilder = new ProviderRendererBuilder(prototypes); + adapter = new ProviderListAdapter(getLayoutInflater(), providerRendererBuilder, provider_manager); + provider_list_view.setAdapter(adapter); + } + + @Override + protected void onSaveInstanceState(@NotNull Bundle outState) { + if (mProgressBar != null) + outState.putInt(PROGRESSBAR_NUMBER, mProgressBar.getProgress()); + if (progressbar_description != null) + outState.putString(PROGRESSBAR_TEXT, progressbar_description.getText().toString()); + outState.putParcelable(Provider.KEY, selected_provider); + super.onSaveInstanceState(outState); + } + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + preferences = getSharedPreferences(Dashboard.SHARED_PREFERENCES, MODE_PRIVATE); + fragment_manager = new FragmentManagerEnhanced(getFragmentManager()); + provider_manager = ProviderManager.getInstance(getAssets(), getExternalFilesDir(null)); + + setUpInitialUI(); + + initProviderList(); + + if (savedInstanceState != null) + restoreState(savedInstanceState); + setUpProviderAPIResultReceiver(); + } + + private void restoreState(Bundle savedInstanceState) { + progressbar_text = savedInstanceState.getString(PROGRESSBAR_TEXT, ""); + provider_name = savedInstanceState.getString(Provider.NAME, ""); + selected_provider = savedInstanceState.getParcelable(Provider.KEY); + progress = savedInstanceState.getInt(PROGRESSBAR_NUMBER, -1); + + if (fragment_manager.findFragmentByTag(ProviderDetailFragment.TAG) == null && setting_up_provider) { + onItemSelectedUi(); + if (progress > 0) + mProgressBar.setProgress(progress); + } + + } + + @Override + protected void onPostResume() { + super.onPostResume(); + if (!progressbar_text.isEmpty() && !provider_name.isEmpty() && progress != -1) { + progressbar_description.setText(progressbar_text); + mProgressBar.setProgress(progress); + + progressbar_text = ""; + provider_name = ""; + progress = -1; + } + } + + private void setUpInitialUI() { + setContentView(R.layout.configuration_wizard_activity); + ButterKnife.inject(this); + + hideProgressBar(); + } + + private void hideProgressBar() { + mProgressBar.setVisibility(ProgressBar.INVISIBLE); + progressbar_description.setVisibility(TextView.INVISIBLE); + } + + @Override + protected void onDestroy() { + super.onDestroy(); + if (providerAPI_broadcast_receiver_update != null) + unregisterReceiver(providerAPI_broadcast_receiver_update); + } + + private void setUpProviderAPIResultReceiver() { + providerAPI_result_receiver = new ProviderAPIResultReceiver(new Handler(), this); + providerAPI_broadcast_receiver_update = new ProviderAPIBroadcastReceiver_Update(); + + IntentFilter update_intent_filter = new IntentFilter(ProviderAPI.UPDATE_PROGRESSBAR); + update_intent_filter.addCategory(Intent.CATEGORY_DEFAULT); + registerReceiver(providerAPI_broadcast_receiver_update, update_intent_filter); + } + + @Override + public void onReceiveResult(int resultCode, Bundle resultData) { + if (resultCode == ProviderAPI.PROVIDER_OK) { + mConfigState.setAction(PROVIDER_SET); + + try { + String provider_json_string = preferences.getString(Provider.KEY, ""); + if (!provider_json_string.isEmpty()) + selected_provider.define(new JSONObject(provider_json_string)); + } catch (JSONException e) { + e.printStackTrace(); + } + + if (preferences.getBoolean(Constants.ALLOWED_ANON, false)) { + mConfigState.putExtra(SERVICES_RETRIEVED, true); + + downloadVpnCertificate(); + } else { + mProgressBar.incrementProgressBy(1); + hideProgressBar(); + + showProviderDetails(); + } + } else if (resultCode == ProviderAPI.PROVIDER_NOK) { + hideProgressBar(); + preferences.edit().remove(Provider.KEY).apply(); + setting_up_provider = false; + + String reason_to_fail = resultData.getString(ProviderAPI.ERRORS); + showDownloadFailedDialog(reason_to_fail); + } else if (resultCode == ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE) { + mProgressBar.incrementProgressBy(1); + hideProgressBar(); + + showProviderDetails(); + } else if (resultCode == ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE) { + hideProgressBar(); + cancelSettingUpProvider(); + Toast.makeText(getApplicationContext(), R.string.provider_problem, Toast.LENGTH_LONG).show(); + } else if (resultCode == AboutActivity.VIEWED) { + // Do nothing, right now + // I need this for CW to wait for the About activity to end before going back to Dashboard. + } + } + + @OnItemClick(R.id.provider_list) + void onItemSelected(int position) { + //TODO Code 2 pane view + selected_provider = adapter.getItem(position); + onItemSelectedLogic(); + onItemSelectedUi(); + } + + private void onItemSelectedLogic() { + boolean danger_on = preferences.getBoolean(ProviderItem.DANGER_ON, true); + setUpProvider(danger_on); + } + + private void onItemSelectedUi() { + startProgressBar(); + adapter.hideAllBut(adapter.indexOf(selected_provider)); + } + + @Override + public void onBackPressed() { + if (setting_up_provider) { + stopSettingUpProvider(); + } else { + askDashboardToQuitApp(); + super.onBackPressed(); + } + } + + private void stopSettingUpProvider() { + ProviderAPI.stop(); + mProgressBar.setVisibility(ProgressBar.GONE); + mProgressBar.setProgress(0); + progressbar_description.setVisibility(TextView.GONE); + + cancelSettingUpProvider(); + } + + public void cancelSettingUpProvider() { + adapter.showAllProviders(); + setting_up_provider = false; + preferences.edit().remove(Provider.KEY).remove(ProviderItem.DANGER_ON).remove(Constants.ALLOWED_ANON).remove(Constants.KEY).commit(); + } + + private void askDashboardToQuitApp() { + Intent ask_quit = new Intent(); + ask_quit.putExtra(Dashboard.ACTION_QUIT, Dashboard.ACTION_QUIT); + setResult(RESULT_CANCELED, ask_quit); + } + + private void startProgressBar() { + mProgressBar.setVisibility(ProgressBar.VISIBLE); + progressbar_description.setVisibility(TextView.VISIBLE); + mProgressBar.setProgress(0); + mProgressBar.setMax(3); + + int measured_height = listItemHeight(); + mProgressBar.setTranslationY(measured_height); + progressbar_description.setTranslationY(measured_height + mProgressBar.getHeight()); + } + + private int listItemHeight() { + View listItem = adapter.getView(0, null, provider_list_view); + listItem.setLayoutParams(new RelativeLayout.LayoutParams( + RelativeLayout.LayoutParams.WRAP_CONTENT, + RelativeLayout.LayoutParams.WRAP_CONTENT)); + WindowManager wm = (WindowManager) getApplicationContext() + .getSystemService(Context.WINDOW_SERVICE); + Display display = wm.getDefaultDisplay(); + int screenWidth = display.getWidth(); // deprecated + + int listViewWidth = screenWidth - 10 - 10; + int widthSpec = View.MeasureSpec.makeMeasureSpec(listViewWidth, + View.MeasureSpec.AT_MOST); + listItem.measure(widthSpec, 0); + + return listItem.getMeasuredHeight(); + } + + /** + * Asks ProviderAPI to download an anonymous (anon) VPN certificate. + */ + private void downloadVpnCertificate() { + Intent provider_API_command = new Intent(this, ProviderAPI.class); + + provider_API_command.setAction(ProviderAPI.DOWNLOAD_CERTIFICATE); + provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver); + startService(provider_API_command); + } + + /** + * Open the new provider dialog + */ + public void addAndSelectNewProvider() { + FragmentTransaction fragment_transaction = fragment_manager.removePreviousFragment(NewProviderDialog.TAG); + new NewProviderDialog().show(fragment_transaction, NewProviderDialog.TAG); + } + + /** + * Open the new provider dialog with data + */ + public void addAndSelectNewProvider(String main_url, boolean danger_on) { + FragmentTransaction fragment_transaction = fragment_manager.removePreviousFragment(NewProviderDialog.TAG); + + DialogFragment newFragment = new NewProviderDialog(); + Bundle data = new Bundle(); + data.putString(Provider.MAIN_URL, main_url); + data.putBoolean(ProviderItem.DANGER_ON, danger_on); + newFragment.setArguments(data); + newFragment.show(fragment_transaction, NewProviderDialog.TAG); + } + + /** + * 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. + * + * @param reason_to_fail + */ + public void showDownloadFailedDialog(String reason_to_fail) { + FragmentTransaction fragment_transaction = fragment_manager.removePreviousFragment(DownloadFailedDialog.TAG); + + DialogFragment newFragment = DownloadFailedDialog.newInstance(reason_to_fail); + newFragment.show(fragment_transaction, DownloadFailedDialog.TAG); + } + + /** + * 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. + */ + private void showProviderDetails() { + if (setting_up_provider) { + FragmentTransaction fragment_transaction = fragment_manager.removePreviousFragment(ProviderDetailFragment.TAG); + + DialogFragment newFragment = ProviderDetailFragment.newInstance(); + newFragment.show(fragment_transaction, ProviderDetailFragment.TAG); + setting_up_provider = false; + } + } + + public void showAndSelectProvider(String provider_main_url, boolean danger_on) { + try { + selected_provider = new Provider(new URL((provider_main_url))); + adapter.add(selected_provider); + adapter.saveProviders(); + autoSelectProvider(selected_provider, danger_on); + } catch (MalformedURLException e) { + e.printStackTrace(); + } + } + + private void autoSelectProvider(Provider provider, boolean danger_on) { + preferences.edit().putBoolean(ProviderItem.DANGER_ON, danger_on).apply(); + selected_provider = provider; + onItemSelectedLogic(); + onItemSelectedUi(); + } + + /** + * Asks ProviderAPI to download a new provider.json file + * + * @param danger_on tells if HTTPS client should bypass certificate errors + */ + public void setUpProvider(boolean danger_on) { + Intent provider_API_command = new Intent(this, ProviderAPI.class); + Bundle parameters = new Bundle(); + parameters.putString(Provider.MAIN_URL, selected_provider.mainUrl().getUrl().toString()); + parameters.putBoolean(ProviderItem.DANGER_ON, danger_on); + parameters.putString(Provider.CA_CERT_FINGERPRINT, selected_provider.certificatePin()); + + provider_API_command.setAction(ProviderAPI.SET_UP_PROVIDER); + provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters); + provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver); + + startService(provider_API_command); + setting_up_provider = true; + } + + public void retrySetUpProvider() { + cancelSettingUpProvider(); + if (!ProviderAPI.caCertDownloaded()) { + addAndSelectNewProvider(ProviderAPI.lastProviderMainUrl(), ProviderAPI.lastDangerOn()); + } else { + Intent provider_API_command = new Intent(this, ProviderAPI.class); + + provider_API_command.setAction(ProviderAPI.SET_UP_PROVIDER); + provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver); + + startService(provider_API_command); + } + } + + @Override + public boolean onCreateOptionsMenu(Menu menu) { + getMenuInflater().inflate(R.menu.configuration_wizard_activity, menu); + return true; + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case R.id.about_leap: + startActivityForResult(new Intent(this, AboutActivity.class), 0); + return true; + case R.id.new_provider: + addAndSelectNewProvider(); + return true; + default: + return super.onOptionsItemSelected(item); + } + } + + public void showAllProviders() { + adapter.showAllProviders(); + } + + @Override + public void login() { + Intent ask_login = new Intent(); + ask_login.putExtra(SessionDialog.TAG, SessionDialog.TAG); + ask_login.putExtra(Provider.KEY, selected_provider); + setResult(RESULT_OK, ask_login); + setting_up_provider = false; + finish(); + } + + @Override + public void use_anonymously() { + Intent pass_provider = new Intent(); + pass_provider.putExtra(Provider.KEY, selected_provider); + setResult(RESULT_OK, pass_provider); + setting_up_provider = false; + finish(); + } + + public class ProviderAPIBroadcastReceiver_Update extends BroadcastReceiver { + @Override + public void onReceive(Context context, Intent intent) { + int update = intent.getIntExtra(ProviderAPI.CURRENT_PROGRESS, 0); + mProgressBar.setProgress(update); + } + } +} diff --git a/app/src/insecure/java/se/leap/bitmaskclient/NewProviderDialog.java b/app/src/insecure/java/se/leap/bitmaskclient/NewProviderDialog.java new file mode 100644 index 00000000..c1426708 --- /dev/null +++ b/app/src/insecure/java/se/leap/bitmaskclient/NewProviderDialog.java @@ -0,0 +1,117 @@ +/** + * 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 butterknife.*; +import se.leap.bitmaskclient.ProviderListContent.ProviderItem; + +import android.app.*; +import android.content.*; +import android.os.*; +import android.view.*; +import android.widget.*; + +/** + * Implements the new custom provider dialog. + * + * @author parmegv + */ +public class NewProviderDialog extends DialogFragment { + + final public static String TAG = "newProviderDialog"; + + @InjectView(R.id.new_provider_url) + EditText url_input_field; + @InjectView(R.id.danger_checkbox) + CheckBox danger_checkbox; + + public interface NewProviderDialogInterface { + public void showAndSelectProvider(String url_provider, boolean danger_on); + } + + NewProviderDialogInterface interface_with_ConfigurationWizard; + + @Override + public void onAttach(Activity activity) { + super.onAttach(activity); + try { + interface_with_ConfigurationWizard = (NewProviderDialogInterface) activity; + } catch (ClassCastException e) { + throw new ClassCastException(activity.toString() + + " must implement NoticeDialogListener"); + } + } + + @Override + public Dialog onCreateDialog(Bundle savedInstanceState) { + AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); + LayoutInflater inflater = getActivity().getLayoutInflater(); + View view = inflater.inflate(R.layout.new_provider_dialog, null); + ButterKnife.inject(this, view); + Bundle arguments = getArguments(); + if (arguments != null) { + url_input_field.setText(arguments.getString(Provider.MAIN_URL, "")); + danger_checkbox.setActivated(arguments.getBoolean(ProviderItem.DANGER_ON, false)); + } + + builder.setView(view) + .setMessage(R.string.introduce_new_provider) + .setPositiveButton(R.string.save, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + saveProvider(); + } + }) + .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + dialog.cancel(); + } + }); + // Create the AlertDialog object and return it + return builder.create(); + } + + private void saveProvider() { + String entered_url = url_input_field.getText().toString().trim(); + if (!entered_url.startsWith("https://")) { + if (entered_url.startsWith("http://")) { + entered_url = entered_url.substring("http://".length()); + } + entered_url = "https://".concat(entered_url); + } + boolean danger_on = danger_checkbox.isChecked(); + if (validURL(entered_url)) { + interface_with_ConfigurationWizard.showAndSelectProvider(entered_url, danger_on); + Toast.makeText(getActivity().getApplicationContext(), R.string.valid_url_entered, Toast.LENGTH_LONG).show(); + } else { + url_input_field.setText(""); + danger_checkbox.setChecked(false); + Toast.makeText(getActivity().getApplicationContext(), R.string.not_valid_url_entered, Toast.LENGTH_LONG).show(); + ; + } + } + + /** + * Checks if the entered url is valid or not. + * + * @param entered_url + * @return true if it's not empty nor contains only the protocol. + */ + boolean validURL(String entered_url) { + //return !entered_url.isEmpty() && entered_url.matches("http[s]?://.+") && !entered_url.replaceFirst("http[s]?://", "").isEmpty(); + return android.util.Patterns.WEB_URL.matcher(entered_url).matches(); + } +} diff --git a/app/src/insecure/java/se/leap/bitmaskclient/ProviderAPI.java b/app/src/insecure/java/se/leap/bitmaskclient/ProviderAPI.java new file mode 100644 index 00000000..2d7e13fe --- /dev/null +++ b/app/src/insecure/java/se/leap/bitmaskclient/ProviderAPI.java @@ -0,0 +1,1012 @@ +/** + * 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.*; +import android.content.*; +import android.content.res.*; +import android.os.*; +import android.util.*; + +import org.apache.http.client.*; +import org.json.*; +import org.thoughtcrime.ssl.pinning.util.*; + +import java.io.*; +import java.math.*; +import java.net.*; +import java.security.*; +import java.security.cert.*; +import java.security.interfaces.*; +import java.util.*; + +import javax.net.ssl.*; + +import se.leap.bitmaskclient.ProviderListContent.*; +import se.leap.bitmaskclient.eip.*; +import se.leap.bitmaskclient.userstatus.SessionDialog; +import se.leap.bitmaskclient.userstatus.User; +import se.leap.bitmaskclient.userstatus.UserStatus; + +/** + * Implements HTTP api methods used to manage communications with the provider server. + * <p/> + * It's an IntentService because it downloads data from the Internet, so it operates in the background. + * + * @author parmegv + * @author MeanderingCode + */ +public class ProviderAPI extends IntentService { + + final public static String + TAG = ProviderAPI.class.getSimpleName(), + SET_UP_PROVIDER = "setUpProvider", + DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON", + SIGN_UP = "srpRegister", + LOG_IN = "srpAuth", + LOG_OUT = "logOut", + DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate", + PARAMETERS = "parameters", + RESULT_KEY = "result", + RECEIVER_KEY = "receiver", + ERRORS = "errors", + UPDATE_PROGRESSBAR = "update_progressbar", + CURRENT_PROGRESS = "current_progress", + DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE"; + + final public static int + SUCCESSFUL_LOGIN = 3, + FAILED_LOGIN = 4, + SUCCESSFUL_SIGNUP = 5, + FAILED_SIGNUP = 6, + SUCCESSFUL_LOGOUT = 7, + LOGOUT_FAILED = 8, + CORRECTLY_DOWNLOADED_CERTIFICATE = 9, + INCORRECTLY_DOWNLOADED_CERTIFICATE = 10, + PROVIDER_OK = 11, + PROVIDER_NOK = 12, + CORRECTLY_DOWNLOADED_EIP_SERVICE = 13, + INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14; + + private static boolean + CA_CERT_DOWNLOADED = false, + PROVIDER_JSON_DOWNLOADED = false, + EIP_SERVICE_JSON_DOWNLOADED = false; + + private static String last_provider_main_url; + private static boolean last_danger_on = false; + private static boolean go_ahead = true; + private static SharedPreferences preferences; + private static String provider_api_url; + private static String provider_ca_cert_fingerprint; + private Resources resources; + + public static void stop() { + go_ahead = false; + } + + public ProviderAPI() { + super(TAG); + } + + @Override + public void onCreate() { + super.onCreate(); + + + preferences = getSharedPreferences(Dashboard.SHARED_PREFERENCES, MODE_PRIVATE); + resources = getResources(); + CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER)); + } + + public static String lastProviderMainUrl() { + return last_provider_main_url; + } + + public static boolean lastDangerOn() { + return last_danger_on; + } + + private String formatErrorMessage(final int toast_string_id) { + return "{ \"" + ERRORS + "\" : \"" + getResources().getString(toast_string_id) + "\" }"; + } + + @Override + protected void onHandleIntent(Intent command) { + final ResultReceiver receiver = command.getParcelableExtra(RECEIVER_KEY); + String action = command.getAction(); + Bundle parameters = command.getBundleExtra(PARAMETERS); + if (provider_api_url == null && preferences.contains(Provider.KEY)) { + try { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "no provider")); + provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); + go_ahead = true; + } catch (JSONException e) { + go_ahead = false; + } + } + + if (action.equalsIgnoreCase(SET_UP_PROVIDER)) { + Bundle result = setUpProvider(parameters); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(PROVIDER_OK, result); + } else { + receiver.send(PROVIDER_NOK, result); + } + } else if (action.equalsIgnoreCase(SIGN_UP)) { + UserStatus.updateStatus(UserStatus.SessionStatus.SIGNING_UP, resources); + Bundle result = tryToRegister(parameters); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(SUCCESSFUL_SIGNUP, result); + } else { + receiver.send(FAILED_SIGNUP, result); + } + } else if (action.equalsIgnoreCase(LOG_IN)) { + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_IN, resources); + Bundle result = tryToAuthenticate(parameters); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(SUCCESSFUL_LOGIN, result); + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_IN, resources); + } else { + receiver.send(FAILED_LOGIN, result); + UserStatus.updateStatus(UserStatus.SessionStatus.NOT_LOGGED_IN, resources); + } + } else if (action.equalsIgnoreCase(LOG_OUT)) { + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_OUT, resources); + if (logOut()) { + receiver.send(SUCCESSFUL_LOGOUT, Bundle.EMPTY); + android.util.Log.d(TAG, "Logged out, notifying user status"); + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_OUT, resources); + } else { + receiver.send(LOGOUT_FAILED, Bundle.EMPTY); + UserStatus.updateStatus(UserStatus.SessionStatus.DIDNT_LOG_OUT, resources); + } + } else if (action.equalsIgnoreCase(DOWNLOAD_CERTIFICATE)) { + if (updateVpnCertificate()) { + receiver.send(CORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); + } else { + receiver.send(INCORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); + } + } else if (action.equalsIgnoreCase(DOWNLOAD_EIP_SERVICE)) { + Bundle result = getAndSetEipServiceJson(); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(CORRECTLY_DOWNLOADED_EIP_SERVICE, result); + } else { + receiver.send(INCORRECTLY_DOWNLOADED_EIP_SERVICE, result); + } + } + } + + private Bundle tryToRegister(Bundle task) { + Bundle result = new Bundle(); + int progress = 0; + + String username = User.userName(); + String password = task.getString(SessionDialog.PASSWORD); + + if (validUserLoginData(username, password)) { + result = register(username, password); + broadcastProgress(progress++); + } else { + if (!wellFormedPassword(password)) { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); + } + if (!validUsername(username)) { + result.putBoolean(RESULT_KEY, false); + result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); + } + } + + return result; + } + + private Bundle register(String username, String password) { + LeapSRPSession client = new LeapSRPSession(username, password); + byte[] salt = client.calculateNewSalt(); + + BigInteger password_verifier = client.calculateV(username, password, salt); + + JSONObject api_result = sendNewUserDataToSRPServer(provider_api_url, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16)); + + Bundle result = new Bundle(); + if (api_result.has(ERRORS)) + result = authFailedNotification(api_result, username); + else { + result.putString(SessionDialog.USERNAME, username); + result.putString(SessionDialog.PASSWORD, password); + result.putBoolean(RESULT_KEY, true); + } + + return result; + } + + /** + * Starts the authentication process using SRP protocol. + * + * @param task containing: username, password and api url. + * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if authentication was successful. + */ + private Bundle tryToAuthenticate(Bundle task) { + Bundle result = new Bundle(); + int progress = 0; + + String username = User.userName(); + String password = task.getString(SessionDialog.PASSWORD); + if (validUserLoginData(username, password)) { + result = authenticate(username, password); + broadcastProgress(progress++); + } else { + if (!wellFormedPassword(password)) { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); + } + if (!validUsername(username)) { + result.putBoolean(RESULT_KEY, false); + result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); + } + } + + return result; + } + + + private Bundle authenticate(String username, String password) { + Bundle result = new Bundle(); + + LeapSRPSession client = new LeapSRPSession(username, password); + byte[] A = client.exponential(); + + JSONObject step_result = sendAToSRPServer(provider_api_url, username, new BigInteger(1, A).toString(16)); + try { + String salt = step_result.getString(LeapSRPSession.SALT); + byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray(); + byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes); + if (M1 != null) { + step_result = sendM1ToSRPServer(provider_api_url, username, M1); + setTokenIfAvailable(step_result); + byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray(); + if (client.verify(M2)) { + result.putBoolean(RESULT_KEY, true); + } else { + authFailedNotification(step_result, username); + } + } else { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putString(getResources().getString(R.string.user_message), getResources().getString(R.string.error_srp_math_error_user_message)); + } + } catch (JSONException e) { + result = authFailedNotification(step_result, username); + e.printStackTrace(); + } + + return result; + } + + private boolean setTokenIfAvailable(JSONObject authentication_step_result) { + try { + LeapSRPSession.setToken(authentication_step_result.getString(LeapSRPSession.TOKEN)); + CookieHandler.setDefault(null); // we don't need cookies anymore + } catch (JSONException e) { // + return false; + } + return true; + } + + private Bundle authFailedNotification(JSONObject result, String username) { + Bundle user_notification_bundle = new Bundle(); + try { + JSONObject error_message = result.getJSONObject(ERRORS); + String error_type = error_message.keys().next().toString(); + String message = error_message.get(error_type).toString(); + user_notification_bundle.putString(getResources().getString(R.string.user_message), message); + } catch (JSONException e) { + } + + if (!username.isEmpty()) + user_notification_bundle.putString(SessionDialog.USERNAME, username); + user_notification_bundle.putBoolean(RESULT_KEY, false); + + return user_notification_bundle; + } + + /** + * Sets up an intent with the progress value passed as a parameter + * and sends it as a broadcast. + * + * @param progress + */ + private void broadcastProgress(int progress) { + Intent intentUpdate = new Intent(); + intentUpdate.setAction(UPDATE_PROGRESSBAR); + intentUpdate.addCategory(Intent.CATEGORY_DEFAULT); + intentUpdate.putExtra(CURRENT_PROGRESS, progress); + sendBroadcast(intentUpdate); + } + + /** + * Validates parameters entered by the user to log in + * + * @param username + * @param password + * @return true if both parameters are present and the entered password length is greater or equal to eight (8). + */ + private boolean validUserLoginData(String username, String password) { + return validUsername(username) && wellFormedPassword(password); + } + + private boolean validUsername(String username) { + return username != null && !username.isEmpty(); + } + + /** + * Validates a password + * + * @param password + * @return true if the entered password length is greater or equal to eight (8). + */ + private boolean wellFormedPassword(String password) { + return password != null && password.length() >= 8; + } + + /** + * Sends an HTTP POST request to the authentication server with the SRP Parameter A. + * + * @param server_url + * @param username + * @param clientA First SRP parameter sent + * @return response from authentication server + */ + private JSONObject sendAToSRPServer(String server_url, String username, String clientA) { + Map<String, String> parameters = new HashMap<String, String>(); + parameters.put("login", username); + parameters.put("A", clientA); + return sendToServer(server_url + "/sessions.json", "POST", parameters); + } + + /** + * Sends an HTTP PUT request to the authentication server with the SRP Parameter M1 (or simply M). + * + * @param server_url + * @param username + * @param m1 Second SRP parameter sent + * @return response from authentication server + */ + private JSONObject sendM1ToSRPServer(String server_url, String username, byte[] m1) { + Map<String, String> parameters = new HashMap<String, String>(); + parameters.put("client_auth", new BigInteger(1, ConfigHelper.trim(m1)).toString(16)); + + return sendToServer(server_url + "/sessions/" + username + ".json", "PUT", parameters); + } + + /** + * Sends an HTTP POST request to the api server to register a new user. + * + * @param server_url + * @param username + * @param salt + * @param password_verifier + * @return response from authentication server + */ + private JSONObject sendNewUserDataToSRPServer(String server_url, String username, String salt, String password_verifier) { + Map<String, String> parameters = new HashMap<String, String>(); + parameters.put("user[login]", username); + parameters.put("user[password_salt]", salt); + parameters.put("user[password_verifier]", password_verifier); + return sendToServer(server_url + "/users.json", "POST", parameters); + } + + /** + * Executes an HTTP request expecting a JSON response. + * + * @param url + * @param request_method + * @param parameters + * @return response from authentication server + */ + private JSONObject sendToServer(String url, String request_method, Map<String, String> parameters) { + JSONObject json_response; + HttpsURLConnection urlConnection = null; + try { + InputStream is = null; + urlConnection = (HttpsURLConnection) new URL(url).openConnection(); + urlConnection.setRequestMethod(request_method); + String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); + urlConnection.setRequestProperty("Accept-Language", locale); + urlConnection.setChunkedStreamingMode(0); + urlConnection.setSSLSocketFactory(getProviderSSLSocketFactory()); + + DataOutputStream writer = new DataOutputStream(urlConnection.getOutputStream()); + writer.writeBytes(formatHttpParameters(parameters)); + writer.close(); + + is = urlConnection.getInputStream(); + String plain_response = new Scanner(is).useDelimiter("\\A").next(); + json_response = new JSONObject(plain_response); + } catch (ClientProtocolException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (IOException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (JSONException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (NoSuchAlgorithmException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (KeyManagementException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (KeyStoreException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } catch (CertificateException e) { + json_response = getErrorMessage(urlConnection); + e.printStackTrace(); + } + + return json_response; + } + + private JSONObject getErrorMessage(HttpsURLConnection urlConnection) { + JSONObject error_message = new JSONObject(); + if (urlConnection != null) { + InputStream error_stream = urlConnection.getErrorStream(); + if (error_stream != null) { + String error_response = new Scanner(error_stream).useDelimiter("\\A").next(); + try { + error_message = new JSONObject(error_response); + } catch (JSONException e) { + e.printStackTrace(); + } + urlConnection.disconnect(); + } + } + return error_message; + } + + private String formatHttpParameters(Map<String, String> parameters) throws UnsupportedEncodingException { + StringBuilder result = new StringBuilder(); + boolean first = true; + + Iterator<String> parameter_iterator = parameters.keySet().iterator(); + while (parameter_iterator.hasNext()) { + if (first) + first = false; + else + result.append("&&"); + + String key = parameter_iterator.next(); + String value = parameters.get(key); + + result.append(URLEncoder.encode(key, "UTF-8")); + result.append("="); + result.append(URLEncoder.encode(value, "UTF-8")); + } + + return result.toString(); + } + + + /** + * Downloads a provider.json from a given URL, adding a new provider using the given name. + * + * @param task containing a boolean meaning if the provider is custom or not, another boolean meaning if the user completely trusts this provider, the provider name and its provider.json url. + * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if the update was successful. + */ + private Bundle setUpProvider(Bundle task) { + int progress = 0; + Bundle current_download = new Bundle(); + + if (task != null) { + last_danger_on = task.containsKey(ProviderItem.DANGER_ON) && task.getBoolean(ProviderItem.DANGER_ON); + last_provider_main_url = task.containsKey(Provider.MAIN_URL) ? + task.getString(Provider.MAIN_URL) : + ""; + provider_ca_cert_fingerprint = task.containsKey(Provider.CA_CERT_FINGERPRINT) ? + task.getString(Provider.CA_CERT_FINGERPRINT) : + ""; + CA_CERT_DOWNLOADED = PROVIDER_JSON_DOWNLOADED = EIP_SERVICE_JSON_DOWNLOADED = false; + go_ahead = true; + } + + if (!PROVIDER_JSON_DOWNLOADED) + current_download = getAndSetProviderJson(last_provider_main_url, last_danger_on, provider_ca_cert_fingerprint); + if (PROVIDER_JSON_DOWNLOADED || (current_download.containsKey(RESULT_KEY) && current_download.getBoolean(RESULT_KEY))) { + broadcastProgress(progress++); + PROVIDER_JSON_DOWNLOADED = true; + current_download = downloadCACert(last_danger_on); + + if (CA_CERT_DOWNLOADED || (current_download.containsKey(RESULT_KEY) && current_download.getBoolean(RESULT_KEY))) { + broadcastProgress(progress++); + CA_CERT_DOWNLOADED = true; + current_download = getAndSetEipServiceJson(); + if (current_download.containsKey(RESULT_KEY) && current_download.getBoolean(RESULT_KEY)) { + broadcastProgress(progress++); + EIP_SERVICE_JSON_DOWNLOADED = true; + } + } + } + + return current_download; + } + + private Bundle downloadCACert(boolean danger_on) { + Bundle result = new Bundle(); + try { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + String ca_cert_url = provider_json.getString(Provider.CA_CERT_URI); + String cert_string = downloadWithCommercialCA(ca_cert_url, danger_on); + + if (validCertificate(cert_string) && go_ahead) { + preferences.edit().putString(Provider.CA_CERT, cert_string).commit(); + result.putBoolean(RESULT_KEY, true); + } else { + String reason_to_fail = pickErrorMessage(cert_string); + result.putString(ERRORS, reason_to_fail); + result.putBoolean(RESULT_KEY, false); + } + } catch (JSONException e) { + String reason_to_fail = formatErrorMessage(R.string.malformed_url); + result.putString(ERRORS, reason_to_fail); + result.putBoolean(RESULT_KEY, false); + } + + return result; + } + + public static boolean caCertDownloaded() { + return CA_CERT_DOWNLOADED; + } + + private boolean validCertificate(String cert_string) { + boolean result = false; + if (!ConfigHelper.checkErroneousDownload(cert_string)) { + X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); + try { + if (certificate != null) { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + String fingerprint = provider_json.getString(Provider.CA_CERT_FINGERPRINT); + String encoding = fingerprint.split(":")[0]; + String expected_fingerprint = fingerprint.split(":")[1]; + String real_fingerprint = base64toHex(Base64.encodeToString( + MessageDigest.getInstance(encoding).digest(certificate.getEncoded()), + Base64.DEFAULT)); + + result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim()); + } else + result = false; + } catch (JSONException e) { + result = false; + } catch (NoSuchAlgorithmException e) { + result = false; + } catch (CertificateEncodingException e) { + result = false; + } + } + + return result; + } + + private String base64toHex(String base64_input) { + byte[] byteArray = Base64.decode(base64_input, Base64.DEFAULT); + int readBytes = byteArray.length; + StringBuffer hexData = new StringBuffer(); + int onebyte; + for (int i = 0; i < readBytes; i++) { + onebyte = ((0x000000ff & byteArray[i]) | 0xffffff00); + hexData.append(Integer.toHexString(onebyte).substring(6)); + } + return hexData.toString(); + } + + private Bundle getAndSetProviderJson(String provider_main_url, boolean danger_on, String provider_ca_cert_fingerprint) { + Bundle result = new Bundle(); + + if (go_ahead) { + String provider_dot_json_string; + if(provider_ca_cert_fingerprint.isEmpty()) + provider_dot_json_string = downloadWithCommercialCA(provider_main_url + "/provider.json", danger_on); + else + provider_dot_json_string = downloadWithCommercialCA(provider_main_url + "/provider.json", danger_on, provider_ca_cert_fingerprint); + + try { + JSONObject provider_json = new JSONObject(provider_dot_json_string); + provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); + String name = provider_json.getString(Provider.NAME); + //TODO setProviderName(name); + + preferences.edit().putString(Provider.KEY, provider_json.toString()).commit(); + preferences.edit().putBoolean(Constants.ALLOWED_ANON, provider_json.getJSONObject(Provider.SERVICE).getBoolean(Constants.ALLOWED_ANON)).commit(); + preferences.edit().putBoolean(Constants.ALLOWED_REGISTERED, provider_json.getJSONObject(Provider.SERVICE).getBoolean(Constants.ALLOWED_REGISTERED)).commit(); + + result.putBoolean(RESULT_KEY, true); + } catch (JSONException e) { + //TODO Error message should be contained in that provider_dot_json_string + String reason_to_fail = pickErrorMessage(provider_dot_json_string); + result.putString(ERRORS, reason_to_fail); + result.putBoolean(RESULT_KEY, false); + } + } + return result; + } + + private Bundle getAndSetEipServiceJson() { + Bundle result = new Bundle(); + String eip_service_json_string = ""; + if (go_ahead) { + try { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + String eip_service_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION) + "/" + EIP.SERVICE_API_PATH; + eip_service_json_string = downloadWithProviderCA(eip_service_url, true); + JSONObject eip_service_json = new JSONObject(eip_service_json_string); + eip_service_json.getInt(Provider.API_RETURN_SERIAL); + + preferences.edit().putString(Constants.KEY, eip_service_json.toString()).commit(); + + result.putBoolean(RESULT_KEY, true); + } catch (JSONException e) { + String reason_to_fail = pickErrorMessage(eip_service_json_string); + result.putString(ERRORS, reason_to_fail); + result.putBoolean(RESULT_KEY, false); + } + } + return result; + } + + /** + * Interprets the error message as a JSON object and extract the "errors" keyword pair. + * If the error message is not a JSON object, then it is returned untouched. + * + * @param string_json_error_message + * @return final error message + */ + private String pickErrorMessage(String string_json_error_message) { + String error_message = ""; + try { + JSONObject json_error_message = new JSONObject(string_json_error_message); + error_message = json_error_message.getString(ERRORS); + } catch (JSONException e) { + // TODO Auto-generated catch block + error_message = string_json_error_message; + } + + return error_message; + } + + private String downloadWithCommercialCA(String url_string, boolean danger_on, String ca_cert_fingerprint) { + String result = ""; + + int seconds_of_timeout = 2; + String[] pins = new String[] {ca_cert_fingerprint}; + try { + URL url = new URL(url_string); + HttpsURLConnection connection = PinningHelper.getPinnedHttpsURLConnection(getApplicationContext(), pins, url); + connection.setConnectTimeout(seconds_of_timeout * 1000); + if (!LeapSRPSession.getToken().isEmpty()) + connection.addRequestProperty(LeapSRPSession.AUTHORIZATION_HEADER, "Token token = " + LeapSRPSession.getToken()); + result = new Scanner(connection.getInputStream()).useDelimiter("\\A").next(); + } catch (IOException e) { + if(e instanceof SSLHandshakeException) { + result = danger_on ? downloadWithoutCA(url_string) : + formatErrorMessage(R.string.error_security_pinnedcertificate); + } else + result = formatErrorMessage(R.string.error_io_exception_user_message); + } + + return result; + } + + /** + * Tries to download the contents of the provided url using commercially validated CA certificate from chosen provider. + * <p/> + * If danger_on flag is true, SSL exceptions will be managed by futher methods that will try to use some bypass methods. + * + * @param string_url + * @param danger_on if the user completely trusts this provider + * @return + */ + private String downloadWithCommercialCA(String string_url, boolean danger_on) { + + String json_file_content = ""; + + URL provider_url = null; + int seconds_of_timeout = 2; + try { + provider_url = new URL(string_url); + URLConnection url_connection = provider_url.openConnection(); + + url_connection.setConnectTimeout(seconds_of_timeout * 1000); + if (!LeapSRPSession.getToken().isEmpty()) + url_connection.addRequestProperty(LeapSRPSession.AUTHORIZATION_HEADER, "Token token = " + LeapSRPSession.getToken()); + json_file_content = new Scanner(url_connection.getInputStream()).useDelimiter("\\A").next(); + } catch (MalformedURLException e) { + json_file_content = formatErrorMessage(R.string.malformed_url); + } catch (SocketTimeoutException e) { + json_file_content = formatErrorMessage(R.string.server_unreachable_message); + } catch (SSLHandshakeException e) { + if (provider_url != null) { + json_file_content = downloadWithProviderCA(string_url, danger_on); + } else { + json_file_content = formatErrorMessage(R.string.certificate_error); + } + } catch (ConnectException e) { + json_file_content = formatErrorMessage(R.string.service_is_down_error); + } catch (FileNotFoundException e) { + json_file_content = formatErrorMessage(R.string.malformed_url); + } catch (Exception e) { + if (provider_url != null && danger_on) { + json_file_content = downloadWithProviderCA(string_url, danger_on); + } + } + + return json_file_content; + } + + /** + * Tries to download the contents of the provided url using not commercially validated CA certificate from chosen provider. + * + * @param url_string as a string + * @param danger_on true to download CA certificate in case it has not been downloaded. + * @return an empty string if it fails, the url content if not. + */ + private String downloadWithProviderCA(String url_string, boolean danger_on) { + String json_file_content = ""; + + try { + URL url = new URL(url_string); + // Tell the URLConnection to use a SocketFactory from our SSLContext + HttpsURLConnection urlConnection = + (HttpsURLConnection) url.openConnection(); + urlConnection.setSSLSocketFactory(getProviderSSLSocketFactory()); + if (!LeapSRPSession.getToken().isEmpty()) + urlConnection.addRequestProperty(LeapSRPSession.AUTHORIZATION_HEADER, "Token token=" + LeapSRPSession.getToken()); + json_file_content = new Scanner(urlConnection.getInputStream()).useDelimiter("\\A").next(); + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (UnknownHostException e) { + e.printStackTrace(); + json_file_content = formatErrorMessage(R.string.server_unreachable_message); + } catch (IOException e) { + // The downloaded certificate doesn't validate our https connection. + if (danger_on) { + json_file_content = downloadWithoutCA(url_string); + } else { + json_file_content = formatErrorMessage(R.string.certificate_error); + } + } catch (KeyStoreException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (NoSuchAlgorithmException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (KeyManagementException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (NoSuchElementException e) { + e.printStackTrace(); + json_file_content = formatErrorMessage(R.string.server_unreachable_message); + } + return json_file_content; + } + + private javax.net.ssl.SSLSocketFactory getProviderSSLSocketFactory() throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException, KeyManagementException { + String provider_cert_string = preferences.getString(Provider.CA_CERT, ""); + + java.security.cert.Certificate provider_certificate = ConfigHelper.parseX509CertificateFromString(provider_cert_string); + + // Create a KeyStore containing our trusted CAs + String keyStoreType = KeyStore.getDefaultType(); + KeyStore keyStore = KeyStore.getInstance(keyStoreType); + keyStore.load(null, null); + keyStore.setCertificateEntry("provider_ca_certificate", provider_certificate); + + // Create a TrustManager that trusts the CAs in our KeyStore + String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm(); + TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm); + tmf.init(keyStore); + + // Create an SSLContext that uses our TrustManager + SSLContext context = SSLContext.getInstance("TLS"); + context.init(null, tmf.getTrustManagers(), null); + + return context.getSocketFactory(); + } + + /** + * Downloads the string that's in the url with any certificate. + */ + private String downloadWithoutCA(String url_string) { + String string = ""; + try { + + HostnameVerifier hostnameVerifier = new HostnameVerifier() { + @Override + public boolean verify(String hostname, SSLSession session) { + return true; + } + }; + + class DefaultTrustManager implements X509TrustManager { + + @Override + public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException { + } + + @Override + public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException { + } + + @Override + public X509Certificate[] getAcceptedIssuers() { + return null; + } + } + + SSLContext context = SSLContext.getInstance("TLS"); + context.init(new KeyManager[0], new TrustManager[]{new DefaultTrustManager()}, new SecureRandom()); + + URL url = new URL(url_string); + HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection(); + urlConnection.setSSLSocketFactory(context.getSocketFactory()); + urlConnection.setHostnameVerifier(hostnameVerifier); + string = new Scanner(urlConnection.getInputStream()).useDelimiter("\\A").next(); + System.out.println("String ignoring certificate = " + string); + } catch (FileNotFoundException e) { + e.printStackTrace(); + string = formatErrorMessage(R.string.malformed_url); + } catch (IOException e) { + // The downloaded certificate doesn't validate our https connection. + e.printStackTrace(); + string = formatErrorMessage(R.string.certificate_error); + } catch (NoSuchAlgorithmException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (KeyManagementException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + return string; + } + + /** + * Logs out from the api url retrieved from the task. + * + * @return true if there were no exceptions + */ + private boolean logOut() { + String delete_url = provider_api_url + "/logout"; + + HttpsURLConnection urlConnection = null; + int responseCode = 0; + int progress = 0; + try { + + urlConnection = (HttpsURLConnection) new URL(delete_url).openConnection(); + urlConnection.setRequestMethod("DELETE"); + urlConnection.setSSLSocketFactory(getProviderSSLSocketFactory()); + + responseCode = urlConnection.getResponseCode(); + broadcastProgress(progress++); + LeapSRPSession.setToken(""); + } catch (ClientProtocolException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } catch (IndexOutOfBoundsException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } catch (IOException e) { + // TODO Auto-generated catch block + try { + if (urlConnection != null) { + responseCode = urlConnection.getResponseCode(); + if (responseCode == 401) { + broadcastProgress(progress++); + LeapSRPSession.setToken(""); + return true; + } + } + } catch (IOException e1) { + e1.printStackTrace(); + } + + e.printStackTrace(); + return false; + } catch (KeyManagementException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (KeyStoreException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (NoSuchAlgorithmException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + return true; + } + + /** + * Downloads a new OpenVPN certificate, attaching authenticated cookie for authenticated certificate. + * + * @return true if certificate was downloaded correctly, false if provider.json or danger_on flag are not present in SharedPreferences, or if the certificate url could not be parsed as a URI, or if there was an SSL error. + */ + private boolean updateVpnCertificate() { + try { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + + String provider_main_url = provider_json.getString(Provider.API_URL); + URL new_cert_string_url = new URL(provider_main_url + "/" + provider_json.getString(Provider.API_VERSION) + "/" + Constants.CERTIFICATE); + + boolean danger_on = preferences.getBoolean(ProviderItem.DANGER_ON, false); + + + String cert_string = downloadWithProviderCA(new_cert_string_url.toString(), danger_on); + + if (cert_string.isEmpty() || ConfigHelper.checkErroneousDownload(cert_string)) + return false; + else + return loadCertificate(cert_string); + } catch (JSONException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } catch (MalformedURLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } + } + + private boolean loadCertificate(String cert_string) { + try { + // API returns concatenated cert & key. Split them for OpenVPN options + String certificateString = null, keyString = null; + String[] certAndKey = cert_string.split("(?<=-\n)"); + for (int i = 0; i < certAndKey.length - 1; i++) { + if (certAndKey[i].contains("KEY")) { + keyString = certAndKey[i++] + certAndKey[i]; + } else if (certAndKey[i].contains("CERTIFICATE")) { + certificateString = certAndKey[i++] + certAndKey[i]; + } + } + RSAPrivateKey keyCert = ConfigHelper.parseRsaKeyFromString(keyString); + keyString = Base64.encodeToString(keyCert.getEncoded(), Base64.DEFAULT); + preferences.edit().putString(Constants.PRIVATE_KEY, "-----BEGIN RSA PRIVATE KEY-----\n" + keyString + "-----END RSA PRIVATE KEY-----").commit(); + + X509Certificate certCert = ConfigHelper.parseX509CertificateFromString(certificateString); + certificateString = Base64.encodeToString(certCert.getEncoded(), Base64.DEFAULT); + + preferences.edit().putString(Constants.CERTIFICATE, "-----BEGIN CERTIFICATE-----\n" + certificateString + "-----END CERTIFICATE-----").commit(); + + return true; + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } + } +} diff --git a/app/src/insecure/java/se/leap/bitmaskclient/ProviderDetailFragment.java b/app/src/insecure/java/se/leap/bitmaskclient/ProviderDetailFragment.java new file mode 100644 index 00000000..6d9a16cd --- /dev/null +++ b/app/src/insecure/java/se/leap/bitmaskclient/ProviderDetailFragment.java @@ -0,0 +1,111 @@ +package se.leap.bitmaskclient; + +import org.json.*; + +import se.leap.bitmaskclient.eip.*; +import se.leap.bitmaskclient.ProviderListContent.ProviderItem; + +import android.app.*; +import android.content.*; +import android.os.*; +import android.view.*; +import android.widget.*; + +public class ProviderDetailFragment extends DialogFragment { + + final public static String TAG = "providerDetailFragment"; + + @Override + public Dialog onCreateDialog(Bundle savedInstanceState) { + AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); + try { + + LayoutInflater inflater = getActivity().getLayoutInflater(); + View provider_detail_view = inflater.inflate(R.layout.provider_detail_fragment, null); + + JSONObject provider_json = new JSONObject(getActivity().getSharedPreferences(Dashboard.SHARED_PREFERENCES, getActivity().MODE_PRIVATE).getString(Provider.KEY, "")); + + final TextView domain = (TextView) provider_detail_view.findViewById(R.id.provider_detail_domain); + domain.setText(provider_json.getString(Provider.DOMAIN)); + final TextView name = (TextView) provider_detail_view.findViewById(R.id.provider_detail_name); + name.setText(provider_json.getJSONObject(Provider.NAME).getString("en")); + final TextView description = (TextView) provider_detail_view.findViewById(R.id.provider_detail_description); + description.setText(provider_json.getJSONObject(Provider.DESCRIPTION).getString("en")); + + builder.setView(provider_detail_view); + builder.setTitle(R.string.provider_details_fragment_title); + + if (anon_allowed(provider_json)) { + builder.setPositiveButton(R.string.use_anonymously_button, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + interface_with_configuration_wizard.use_anonymously(); + } + }); + } + + if (registration_allowed(provider_json)) { + builder.setNegativeButton(R.string.signup_or_login_button, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + interface_with_configuration_wizard.login(); + } + }); + } + + return builder.create(); + } catch (JSONException e) { + return null; + } + } + + private boolean anon_allowed(JSONObject provider_json) { + try { + JSONObject service_description = provider_json.getJSONObject(Provider.SERVICE); + return service_description.has(Constants.ALLOWED_ANON) && service_description.getBoolean(Constants.ALLOWED_ANON); + } catch (JSONException e) { + return false; + } + } + + private boolean registration_allowed(JSONObject provider_json) { + try { + JSONObject service_description = provider_json.getJSONObject(Provider.SERVICE); + return service_description.has(Provider.ALLOW_REGISTRATION) && service_description.getBoolean(Provider.ALLOW_REGISTRATION); + } catch (JSONException e) { + return false; + } + } + + @Override + public void onCancel(DialogInterface dialog) { + super.onCancel(dialog); + SharedPreferences.Editor editor = getActivity().getSharedPreferences(Dashboard.SHARED_PREFERENCES, Activity.MODE_PRIVATE).edit(); + editor.remove(Provider.KEY).remove(ProviderItem.DANGER_ON).remove(Constants.ALLOWED_ANON).remove(Constants.KEY).commit(); + interface_with_configuration_wizard.showAllProviders(); + } + + public static DialogFragment newInstance() { + ProviderDetailFragment provider_detail_fragment = new ProviderDetailFragment(); + return provider_detail_fragment; + } + + @Override + public void onAttach(Activity activity) { + super.onAttach(activity); + try { + interface_with_configuration_wizard = (ProviderDetailFragmentInterface) activity; + } catch (ClassCastException e) { + throw new ClassCastException(activity.toString() + + " must implement LogInDialogListener"); + } + } + + public interface ProviderDetailFragmentInterface { + public void login(); + + public void use_anonymously(); + + public void showAllProviders(); + } + + ProviderDetailFragmentInterface interface_with_configuration_wizard; +} diff --git a/app/src/insecure/java/se/leap/bitmaskclient/ProviderListContent.java b/app/src/insecure/java/se/leap/bitmaskclient/ProviderListContent.java new file mode 100644 index 00000000..c8dfc092 --- /dev/null +++ b/app/src/insecure/java/se/leap/bitmaskclient/ProviderListContent.java @@ -0,0 +1,82 @@ +/** + * 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 java.util.*; +import java.net.*; + +/** + * Models the provider list shown in the ConfigurationWizard. + * + * @author parmegv + */ +public class ProviderListContent { + + public static List<ProviderItem> ITEMS = new ArrayList<ProviderItem>(); + + public static Map<String, ProviderItem> ITEM_MAP = new HashMap<String, ProviderItem>(); + + /** + * Adds a new provider item to the end of the items map, and to the items list. + * + * @param item + */ + public static void addItem(ProviderItem item) { + ITEMS.add(item); + ITEM_MAP.put(String.valueOf(ITEMS.size()), item); + } + + public static void removeItem(ProviderItem item) { + ITEMS.remove(item); + ITEM_MAP.remove(item); + } + + /** + * A provider item. + */ + public static class ProviderItem { + final public static String CUSTOM = "custom"; + final public static String DANGER_ON = "danger_on"; + private String provider_main_url; + private String name; + + /** + * @param name of the provider + * @param provider_main_url used to download provider.json file of the provider + */ + public ProviderItem(String name, String provider_main_url) { + this.name = name; + this.provider_main_url = provider_main_url; + } + + public String name() { + return name; + } + + public String providerMainUrl() { + return provider_main_url; + } + + public String domain() { + try { + return new URL(provider_main_url).getHost(); + } catch (MalformedURLException e) { + return provider_main_url.replaceFirst("http[s]?://", "").replaceFirst("/.*", ""); + } + } + } +} |