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+/*
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+ * Nextcloud Talk application
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+ *
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+ * @author Mario Danic
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+ * Copyright (C) 2017-2018 Mario Danic <mario@lovelyhq.com>
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+package com.nextcloud.talk.controllers;
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+
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+import android.app.Activity;
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+import android.app.KeyguardManager;
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+import android.content.Context;
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+import android.content.Intent;
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+import android.os.Build;
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+import android.util.Log;
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+import android.view.LayoutInflater;
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+import android.view.View;
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+import android.view.ViewGroup;
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+import androidx.annotation.NonNull;
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+import androidx.annotation.RequiresApi;
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+import androidx.biometric.BiometricPrompt;
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+import autodagger.AutoInjector;
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+import butterknife.OnClick;
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+import com.nextcloud.talk.R;
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+import com.nextcloud.talk.activities.MainActivity;
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+import com.nextcloud.talk.application.NextcloudTalkApplication;
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+import com.nextcloud.talk.controllers.base.BaseController;
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+import com.nextcloud.talk.utils.SecurityUtils;
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+import com.nextcloud.talk.utils.preferences.AppPreferences;
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+
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+import javax.inject.Inject;
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+import java.util.concurrent.Executor;
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+import java.util.concurrent.Executors;
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+
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+@AutoInjector(NextcloudTalkApplication.class)
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+public class LockedController extends BaseController {
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+ public static final String TAG = "LockedController";
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+ private static final int REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS = 112;
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+
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+ @Inject
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+ AppPreferences appPreferences;
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+
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+ @Override
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+ protected View inflateView(@NonNull LayoutInflater inflater, @NonNull ViewGroup container) {
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+ return inflater.inflate(R.layout.controller_locked, container, false);
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+ }
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+
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+ @RequiresApi(api = Build.VERSION_CODES.M)
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+ @Override
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+ protected void onViewBound(@NonNull View view) {
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+ super.onViewBound(view);
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+ NextcloudTalkApplication.getSharedApplication().getComponentApplication().inject(this);
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+ if (getActionBar() != null) {
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+ getActionBar().hide();
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+ }
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+
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+ showBiometricDialog();
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+ }
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+
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+ @RequiresApi(api = Build.VERSION_CODES.M)
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+ @OnClick(R.id.unlockTextView)
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+ void unlock() {
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+ checkIfWeAreSecure();
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+ }
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+
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+ @RequiresApi(api = Build.VERSION_CODES.M)
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+ private void showBiometricDialog() {
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+ Context context = getActivity();
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+
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+ if (context != null) {
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+ final BiometricPrompt.PromptInfo promptInfo = new BiometricPrompt.PromptInfo.Builder()
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+ .setTitle(String.format(context.getString(R.string.nc_biometric_unlock), context.getString(R.string.nc_app_name)))
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+ .setNegativeButtonText(context.getString(R.string.nc_cancel))
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+ .build();
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+
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+ Executor executor = Executors.newSingleThreadExecutor();
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+
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+ final BiometricPrompt biometricPrompt = new BiometricPrompt((MainActivity) context, executor,
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+ new BiometricPrompt.AuthenticationCallback() {
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+ @Override
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+ public void onAuthenticationSucceeded(@NonNull BiometricPrompt.AuthenticationResult result) {
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+ super.onAuthenticationSucceeded(result);
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+ Log.d(TAG, "Fingerprint recognised successfully");
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+ getRouter().popCurrentController();
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+ }
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+
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+ @Override
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+ public void onAuthenticationFailed() {
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+ super.onAuthenticationFailed();
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+ Log.d(TAG, "Fingerprint not recognised");
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+ }
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+
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+ @Override
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+ public void onAuthenticationError(int errorCode, @NonNull CharSequence errString) {
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+ super.onAuthenticationError(errorCode, errString);
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+ showAuthenticationScreen();
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+ }
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+ }
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+ );
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+
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+ biometricPrompt.authenticate(promptInfo, SecurityUtils.getCryptoObject());
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+ }
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+ }
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+
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+ @RequiresApi(api = Build.VERSION_CODES.M)
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+ private void checkIfWeAreSecure() {
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+ if (getActivity() != null) {
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+ KeyguardManager keyguardManager = (KeyguardManager) getActivity().getSystemService(Context.KEYGUARD_SERVICE);
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+ if (keyguardManager != null && keyguardManager.isKeyguardSecure() && appPreferences.getIsScreenLocked()) {
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+ if (!SecurityUtils.checkIfWeAreAuthenticated(appPreferences.getScreenLockTimeout())) {
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+ showBiometricDialog();
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+ }
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+ }
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+ }
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+ }
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+
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+ private void showAuthenticationScreen() {
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+ if (getActivity() != null) {
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+ KeyguardManager keyguardManager = (KeyguardManager) getActivity().getSystemService(Context.KEYGUARD_SERVICE);
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+ Intent intent = keyguardManager.createConfirmDeviceCredentialIntent(null, null);
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+ if (intent != null) {
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+ startActivityForResult(intent, REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS);
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+ }
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+ }
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+ }
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+
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+ @Override
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+ public void onActivityResult(int requestCode, int resultCode, Intent data) {
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+ super.onActivityResult(requestCode, resultCode, data);
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+
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+ if (requestCode == REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS ) {
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+ if (resultCode == Activity.RESULT_OK) {
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+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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+ if (SecurityUtils.checkIfWeAreAuthenticated(appPreferences.getScreenLockTimeout())) {
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+ Log.d(TAG, "All went well, dismiss locked controller");
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+ getRouter().popCurrentController();
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+ }
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+ }
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+ } else {
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+ Log.d(TAG, "Authorization failed");
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+ }
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+ }
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+ }
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+}
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Mario Danic