+/*
+ * Copyright 2015-2017 Soren Stoutner <soren@stoutner.com>.
+ *
+ * Download cookie code contributed 2017 Hendrik Knackstedt. Copyright assigned to Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ *
+ * Privacy Browser 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.
+ *
+ * Privacy Browser 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 Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacybrowser.activities;
+
+import android.annotation.SuppressLint;
+import android.app.DialogFragment;
+import android.app.DownloadManager;
+import android.content.BroadcastReceiver;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.net.http.SslCertificate;
+import android.net.http.SslError;
+import android.os.Build;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.print.PrintDocumentAdapter;
+import android.print.PrintManager;
+import android.support.annotation.NonNull;
+import android.support.design.widget.CoordinatorLayout;
+import android.support.design.widget.NavigationView;
+import android.support.design.widget.Snackbar;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.v4.view.GravityCompat;
+import android.support.v4.widget.DrawerLayout;
+import android.support.v4.widget.SwipeRefreshLayout;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.ActionBarDrawerToggle;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.app.AppCompatDialogFragment;
+import android.support.v7.widget.Toolbar;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Patterns;
+import android.view.ContextMenu;
+import android.view.GestureDetector;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.WindowManager;
+import android.view.inputmethod.InputMethodManager;
+import android.webkit.CookieManager;
+import android.webkit.DownloadListener;
+import android.webkit.SslErrorHandler;
+import android.webkit.WebBackForwardList;
+import android.webkit.WebChromeClient;
+import android.webkit.WebResourceResponse;
+import android.webkit.WebStorage;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+import android.webkit.WebViewDatabase;
+import android.widget.EditText;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.ProgressBar;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.stoutner.privacybrowser.BannerAd;
+import com.stoutner.privacybrowser.BuildConfig;
+import com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.dialogs.CreateHomeScreenShortcutDialog;
+import com.stoutner.privacybrowser.dialogs.DownloadImageDialog;
+import com.stoutner.privacybrowser.dialogs.UrlHistoryDialog;
+import com.stoutner.privacybrowser.dialogs.ViewSslCertificateDialog;
+import com.stoutner.privacybrowser.helpers.OrbotProxyHelper;
+import com.stoutner.privacybrowser.dialogs.DownloadFileDialog;
+import com.stoutner.privacybrowser.dialogs.SslCertificateErrorDialog;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLEncoder;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+// We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
+public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcutDialog.CreateHomeScreenSchortcutListener,
+ SslCertificateErrorDialog.SslCertificateErrorListener, DownloadFileDialog.DownloadFileListener, DownloadImageDialog.DownloadImageListener, UrlHistoryDialog.UrlHistoryListener {
+
+ // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.
+ // It is also used in `onCreate()`, `onOptionsItemSelected()`, `closeFindOnPage()`, and `applySettings()`.
+ public static ActionBar appBar;
+
+ // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcutDialog`, `BookmarksActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, and `EditBookmarkDialog`.
+ // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
+ public static Bitmap favoriteIcon;
+
+ // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`.
+ // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
+ public static String formattedUrlString;
+
+ // `sslCertificate` is public static so it can be accessed from `ViewSslCertificateDialog`. It is also used in `onCreate()`.
+ public static SslCertificate sslCertificate;
+
+ // `orbotStatus` is public static so it can be accessed from `OrbotProxyHelper`. It is also used in `onCreate()`.
+ public static String orbotStatus;
+
+
+ // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
+ private DrawerLayout drawerLayout;
+
+ // `rootCoordinatorLayout` is used in `onCreate()` and `applySettings()`.
+ private CoordinatorLayout rootCoordinatorLayout;
+
+ // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`.
+ private WebView mainWebView;
+
+ // `fullScreenVideoFrameLayout` is used in `onCreate()` and `onConfigurationChanged()`.
+ private FrameLayout fullScreenVideoFrameLayout;
+
+ // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`.
+ private SwipeRefreshLayout swipeRefreshLayout;
+
+ // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `onRestart()`.
+ private CookieManager cookieManager;
+
+ // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`.
+ private final Map<String, String> customHeaders = new HashMap<>();
+
+ // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`.
+ // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`.
+ private Boolean javaScriptEnabled;
+
+ // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `applySettings()`.
+ private boolean firstPartyCookiesEnabled;
+
+ // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
+ private boolean thirdPartyCookiesEnabled;
+
+ // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
+ private boolean domStorageEnabled;
+
+ // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
+ private boolean saveFormDataEnabled;
+
+ // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`.
+ private boolean swipeToRefreshEnabled;
+
+ // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`.
+ private String homepage;
+
+ // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
+ private String javaScriptDisabledSearchURL;
+
+ // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
+ private String javaScriptEnabledSearchURL;
+
+ // `adBlockerEnabled` is used in `onCreate()` and `applySettings()`.
+ private boolean adBlockerEnabled;
+
+ // `fullScreenBrowsingModeEnabled` is used in `onCreate()` and `applySettings()`.
+ private boolean fullScreenBrowsingModeEnabled;
+
+ // `inFullScreenBrowsingMode` is used in `onCreate()`, `onConfigurationChanged()`, and `applySettings()`.
+ private boolean inFullScreenBrowsingMode;
+
+ // `hideSystemBarsOnFullscreen` is used in `onCreate()` and `applySettings()`.
+ private boolean hideSystemBarsOnFullscreen;
+
+ // `translucentNavigationBarOnFullscreen` is used in `onCreate()` and `applySettings()`.
+ private boolean translucentNavigationBarOnFullscreen;
+
+ // `proxyThroughOrbot` is used in `onCreate()` and `applySettings()`
+ private boolean proxyThroughOrbot;
+
+ // `pendingUrl` is used in `onCreate()` and `applySettings()`
+ private static String pendingUrl;
+
+ // `waitingForOrbotData` is used in `onCreate()` and `applySettings()`.
+ private String waitingForOrbotHTMLString;
+
+ // `findOnPageLinearLayout` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
+ private LinearLayout findOnPageLinearLayout;
+
+ // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
+ private EditText findOnPageEditText;
+
+ // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`.
+ private Menu mainMenu;
+
+ // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
+ private ActionBarDrawerToggle drawerToggle;
+
+ // `supportAppBar` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
+ private Toolbar supportAppBar;
+
+ // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
+ private EditText urlTextBox;
+
+ // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
+ private View adView;
+
+ // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
+ private SslErrorHandler sslErrorHandler;
+
+ // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
+ private InputMethodManager inputMethodManager;
+
+ // `mainWebViewRelativeLayout` is used in `onCreate()` and `onNavigationItemSelected()`.
+ private RelativeLayout mainWebViewRelativeLayout;
+
+ @Override
+ // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. The whole premise of Privacy Browser is built around an understanding of these dangers.
+ @SuppressLint("SetJavaScriptEnabled")
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.drawerlayout);
+
+ // Get a handle for `inputMethodManager`.
+ inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+
+ // We need to use the `SupportActionBar` from `android.support.v7.app.ActionBar` until the minimum API is >= 21.
+ supportAppBar = (Toolbar) findViewById(R.id.app_bar);
+ setSupportActionBar(supportAppBar);
+ appBar = getSupportActionBar();
+
+ // This is needed to get rid of the Android Studio warning that `appBar` might be null.
+ assert appBar != null;
+
+ // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
+ appBar.setCustomView(R.layout.url_app_bar);
+ appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
+
+ // Set the "go" button on the keyboard to load the URL in urlTextBox.
+ urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
+ urlTextBox.setOnKeyListener(new View.OnKeyListener() {
+ @Override
+ public boolean onKey(View v, int keyCode, KeyEvent event) {
+ // If the event is a key-down event on the `enter` button, load the URL.
+ if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
+ // Load the URL into the mainWebView and consume the event.
+ try {
+ loadUrlFromTextBox();
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ }
+ // If the enter key was pressed, consume the event.
+ return true;
+ } else {
+ // If any other key was pressed, do not consume the event.
+ return false;
+ }
+ }
+ });
+
+ // Set `waitingForOrbotHTMLString`.
+ waitingForOrbotHTMLString = "<html><body><br/><center><h1>" + getString(R.string.waiting_for_orbot) + "</h1></center></body></html>";
+
+ // Initialize `pendingUrl`.
+ pendingUrl = "";
+
+ // Set the initial Orbot status.
+ orbotStatus = "unknown";
+
+ // Create an Orbot status `BroadcastReceiver`.
+ BroadcastReceiver orbotStatusBroadcastReceiver = new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ // Store the content of the status message in `orbotStatus`.
+ orbotStatus = intent.getStringExtra("org.torproject.android.intent.extra.STATUS");
+
+ // If we are waiting on `pendingUrl`, load it now that Orbot is connected.
+ if (orbotStatus.equals("ON") && !pendingUrl.isEmpty()) {
+
+ // Wait 500 milliseconds, because Orbot isn't really ready yet.
+ try {
+ Thread.sleep(500);
+ } catch (InterruptedException exception) {
+ // Do nothing.
+ }
+
+ // Copy `pendingUrl` to `formattedUrlString` and reset `pendingUrl` to be empty.
+ formattedUrlString = pendingUrl;
+ pendingUrl = "";
+
+ // Load `formattedUrlString
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
+ }
+ }
+ };
+
+ // Register `orbotStatusBroadcastReceiver` on `this` context.
+ this.registerReceiver(orbotStatusBroadcastReceiver, new IntentFilter("org.torproject.android.intent.action.STATUS"));
+
+ // Get handles for views that need to be accessed.
+ drawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
+ rootCoordinatorLayout = (CoordinatorLayout) findViewById(R.id.root_coordinatorlayout);
+ mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.main_webview_relativelayout);
+ mainWebView = (WebView) findViewById(R.id.mainWebView);
+ findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
+ findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext);
+ fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.full_screen_video_framelayout);
+
+ // Create a double-tap listener to toggle full-screen mode.
+ final GestureDetector gestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() {
+ // Override `onDoubleTap()`. All other events are handled using the default settings.
+ @Override
+ public boolean onDoubleTap(MotionEvent event) {
+ if (fullScreenBrowsingModeEnabled) { // Only process the double-tap if full screen browsing mode is enabled.
+ // Toggle `inFullScreenBrowsingMode`.
+ inFullScreenBrowsingMode = !inFullScreenBrowsingMode;
+
+ if (inFullScreenBrowsingMode) { // Switch to full screen mode.
+ // Hide the `appBar`.
+ appBar.hide();
+
+ // Hide the `BannerAd` in the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ BannerAd.hideAd(adView);
+ }
+
+ // Modify the system bars.
+ if (hideSystemBarsOnFullscreen) { // Hide everything.
+ // Remove the translucent overlays.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
+ drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+
+ /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+ * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
+ * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
+ */
+ rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+
+ // Set `rootCoordinatorLayout` to fill the whole screen.
+ rootCoordinatorLayout.setFitsSystemWindows(false);
+ } else { // Hide everything except the status and navigation bars.
+ // Set `rootCoordinatorLayout` to fit under the status and navigation bars.
+ rootCoordinatorLayout.setFitsSystemWindows(false);
+
+ if (translucentNavigationBarOnFullscreen) { // There is an Android Support Library bug that causes a scrim to print on the right side of the `Drawer Layout` when the navigation bar is displayed on the right of the screen.
+ // Set the navigation bar to be translucent.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+ }
+ }
+ } else { // Switch to normal viewing mode.
+ // Show the `appBar`.
+ appBar.show();
+
+ // Show the `BannerAd` in the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
+ BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+
+ // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+ adView = findViewById(R.id.adView);
+ }
+
+ // Remove the translucent navigation bar flag if it is set.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+
+ // Add the translucent status flag if it is unset. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
+ rootCoordinatorLayout.setSystemUiVisibility(0);
+
+ // Constrain `rootCoordinatorLayout` inside the status and navigation bars.
+ rootCoordinatorLayout.setFitsSystemWindows(true);
+ }
+
+ // Consume the double-tap.
+ return true;
+ } else { // Do not consume the double-tap because full screen browsing mode is disabled.
+ return false;
+ }
+ }
+ });
+
+ // Pass all touch events on `mainWebView` through `gestureDetector` to check for double-taps.
+ mainWebView.setOnTouchListener(new View.OnTouchListener() {
+ @Override
+ public boolean onTouch(View v, MotionEvent event) {
+ // Send the `event` to `gestureDetector`.
+ return gestureDetector.onTouchEvent(event);
+ }
+ });
+
+ // Update `findOnPageCountTextView`.
+ mainWebView.setFindListener(new WebView.FindListener() {
+ // Get a handle for `findOnPageCountTextView`.
+ final TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview);
+
+ @Override
+ public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
+ if ((isDoneCounting) && (numberOfMatches == 0)) { // There are no matches.
+ // Set `findOnPageCountTextView` to `0/0`.
+ findOnPageCountTextView.setText(R.string.zero_of_zero);
+ } else if (isDoneCounting) { // There are matches.
+ // `activeMatchOrdinal` is zero-based.
+ int activeMatch = activeMatchOrdinal + 1;
+
+ // Set `findOnPageCountTextView`.
+ findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches);
+ }
+ }
+ });
+
+ // Search for the string on the page whenever a character changes in the `findOnPageEditText`.
+ findOnPageEditText.addTextChangedListener(new TextWatcher() {
+ @Override
+ public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+ // Do nothing.
+ }
+
+ @Override
+ public void onTextChanged(CharSequence s, int start, int before, int count) {
+ // Do nothing.
+ }
+
+ @Override
+ public void afterTextChanged(Editable s) {
+ // Search for the text in `mainWebView`.
+ mainWebView.findAllAsync(findOnPageEditText.getText().toString());
+ }
+ });
+
+ // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard.
+ findOnPageEditText.setOnKeyListener(new View.OnKeyListener() {
+ @Override
+ public boolean onKey(View v, int keyCode, KeyEvent event) {
+ if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // The `enter` key was pressed.
+ // Hide the soft keyboard. `0` indicates no additional flags.
+ inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+
+ // Consume the event.
+ return true;
+ } else { // A different key was pressed.
+ // Do not consume the event.
+ return false;
+ }
+ }
+ });
+
+ // Implement swipe to refresh
+ swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
+ swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
+ swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+ @Override
+ public void onRefresh() {
+ mainWebView.reload();
+ }
+ });
+
+ // `DrawerTitle` identifies the `DrawerLayout` in accessibility mode.
+ drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
+
+ // Listen for touches on the navigation menu.
+ final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationview);
+ navigationView.setNavigationItemSelectedListener(this);
+
+ // Get handles for `navigationMenu` and the back and forward menu items. The menu is zero-based, so items 1, 2, and 3 are the second, third, and fourth entries in the menu.
+ final Menu navigationMenu = navigationView.getMenu();
+ final MenuItem navigationBackMenuItem = navigationMenu.getItem(1);
+ final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
+ final MenuItem navigationHistoryMenuItem = navigationMenu.getItem(3);
+
+ // The `DrawerListener` allows us to update the Navigation Menu.
+ drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
+ @Override
+ public void onDrawerSlide(View drawerView, float slideOffset) {
+ }
+
+ @Override
+ public void onDrawerOpened(View drawerView) {
+ }
+
+ @Override
+ public void onDrawerClosed(View drawerView) {
+ }
+
+ @Override
+ public void onDrawerStateChanged(int newState) {
+ // Update the `Back`, `Forward`, and `History` menu items every time the drawer opens.
+ navigationBackMenuItem.setEnabled(mainWebView.canGoBack());
+ navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
+ navigationHistoryMenuItem.setEnabled((mainWebView.canGoBack() || mainWebView.canGoForward()));
+
+ // Hide the keyboard so we can see the navigation menu. `0` indicates no additional flags.
+ inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+ }
+ });
+
+ // drawerToggle creates the hamburger icon at the start of the AppBar.
+ drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation_drawer, R.string.close_navigation_drawer);
+
+ // Initialize `adServerSet`.
+ final Set<String> adServersSet = new HashSet<>();
+
+ // Load the list of ad servers into memory.
+ try {
+ // Load `pgl.yoyo.org_adservers.txt` into a `BufferedReader`.
+ BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(getAssets().open("pgl.yoyo.org_adservers.txt")));
+
+ // Create a string for storing each ad server.
+ String adServer;
+
+ // Populate `adServersSet`.
+ while ((adServer = bufferedReader.readLine()) != null) {
+ adServersSet.add(adServer);
+ }
+
+ // Close `bufferedReader`.
+ bufferedReader.close();
+ } catch (IOException ioException) {
+ // We're pretty sure the asset exists, so we don't need to worry about the `IOException` ever being thrown.
+ }
+
+ mainWebView.setWebViewClient(new WebViewClient() {
+ // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
+ // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
+ @SuppressWarnings("deprecation")
+ @Override
+ public boolean shouldOverrideUrlLoading(WebView view, String url) {
+ // Use an external email program if the link begins with `mailto:`.
+ if (url.startsWith("mailto:")) {
+ // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
+ Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+
+ // Parse the url and set it as the data for the `Intent`.
+ emailIntent.setData(Uri.parse(url));
+
+ // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
+ emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+ // Make it so.
+ startActivity(emailIntent);
+ return true;
+ } else { // Load the URL in Privacy Browser.
+ mainWebView.loadUrl(url, customHeaders);
+ return true;
+ }
+ }
+
+ // Block ads. We have to use the deprecated `shouldInterceptRequest` until minimum API >= 21.
+ @SuppressWarnings("deprecation")
+ @Override
+ public WebResourceResponse shouldInterceptRequest(WebView view, String url){
+ if (adBlockerEnabled) { // Block ads.
+ // Extract the host from `url`.
+ Uri requestUri = Uri.parse(url);
+ String requestHost = requestUri.getHost();
+
+ // Create a variable to track if this is an ad server.
+ boolean requestHostIsAdServer = false;
+
+ // Check all the subdomains of `requestHost` if it is not `null`.
+ if (requestHost != null) {
+ while (requestHost.contains(".")) {
+ if (adServersSet.contains(requestHost)) {
+ requestHostIsAdServer = true;
+ }
+
+ // Strip out the lowest subdomain of `requestHost`.
+ requestHost = requestHost.substring(requestHost.indexOf(".") + 1);
+ }
+ }
+
+ if (requestHostIsAdServer) { // It is an ad server.
+ // Return an empty `WebResourceResponse`.
+ return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
+ } else { // It is not an ad server.
+ // `return null` loads the requested resource.
+ return null;
+ }
+ } else { // Ad blocking is disabled.
+ // `return null` loads the requested resource.
+ return null;
+ }
+ }
+
+ // Update the URL in urlTextBox when the page starts to load.
+ @Override
+ public void onPageStarted(WebView view, String url, Bitmap favicon) {
+ // Check to see if we are waiting on Orbot.
+ if (pendingUrl.isEmpty()) { // We are not waiting on Orbot, so we need to process the URL.
+ // We need to update `formattedUrlString` at the beginning of the load, so that if the user toggles JavaScript during the load the new website is reloaded.
+ formattedUrlString = url;
+
+ // Display the loading URL is the URL text box.
+ urlTextBox.setText(url);
+ }
+ }
+
+ // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
+ @Override
+ public void onPageFinished(WebView view, String url) {
+ // Check to see if we are waiting on Orbot.
+ if (pendingUrl.isEmpty()) { // we are not waiting on Orbot, so we need to process the URL.
+ formattedUrlString = url;
+
+ // Only update urlTextBox if the user is not typing in it.
+ if (!urlTextBox.hasFocus()) {
+ urlTextBox.setText(formattedUrlString);
+ }
+
+ // Store the SSL certificate so it can be accessed from `ViewSslCertificateDialog`.
+ sslCertificate = mainWebView.getCertificate();
+ }
+ }
+
+ // Handle SSL Certificate errors.
+ @Override
+ public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
+ // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
+ sslErrorHandler = handler;
+
+ // Display the SSL error `AlertDialog`.
+ AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateErrorDialog.displayDialog(error);
+ sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
+ }
+ });
+
+ mainWebView.setWebChromeClient(new WebChromeClient() {
+ // Update the progress bar when a page is loading.
+ @Override
+ public void onProgressChanged(WebView view, int progress) {
+ ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
+ progressBar.setProgress(progress);
+ if (progress < 100) {
+ progressBar.setVisibility(View.VISIBLE);
+ } else {
+ progressBar.setVisibility(View.GONE);
+
+ //Stop the `SwipeToRefresh` indicator if it is running
+ swipeRefreshLayout.setRefreshing(false);
+ }
+ }
+
+ // Set the favorite icon when it changes.
+ @Override
+ public void onReceivedIcon(WebView view, Bitmap icon) {
+ // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
+ favoriteIcon = icon;
+
+ // Place the favorite icon in the appBar.
+ ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
+ imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
+ }
+
+ // Enter full screen video
+ @Override
+ public void onShowCustomView(View view, CustomViewCallback callback) {
+ // Pause the ad if this is the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ BannerAd.pauseAd(adView);
+ }
+
+ // Remove the translucent overlays.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
+ drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+
+ /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+ * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
+ * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
+ */
+ rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+
+ // Set `rootCoordinatorLayout` to fill the entire screen.
+ rootCoordinatorLayout.setFitsSystemWindows(false);
+
+ // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
+ fullScreenVideoFrameLayout.addView(view);
+ fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
+ }
+
+ // Exit full screen video
+ public void onHideCustomView() {
+ // Hide `fullScreenVideoFrameLayout`.
+ fullScreenVideoFrameLayout.removeAllViews();
+ fullScreenVideoFrameLayout.setVisibility(View.GONE);
+
+ // Add the translucent status flag. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Set `rootCoordinatorLayout` to fit inside the status and navigation bars. This also clears the `SYSTEM_UI` flags.
+ rootCoordinatorLayout.setFitsSystemWindows(true);
+
+ // Show the ad if this is the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
+ BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+
+ // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+ adView = findViewById(R.id.adView);
+ }
+ }
+ });
+
+ // Register `mainWebView` for a context menu. This is used to see link targets and download images.
+ registerForContextMenu(mainWebView);
+
+ // Allow the downloading of files.
+ mainWebView.setDownloadListener(new DownloadListener() {
+ @Override
+ public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
+ // Show the `DownloadFileDialog` `AlertDialog` and name this instance `@string/download`.
+ AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(url, contentDisposition, contentLength);
+ downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
+ }
+ });
+
+ // Allow pinch to zoom.
+ mainWebView.getSettings().setBuiltInZoomControls(true);
+
+ // Hide zoom controls.
+ mainWebView.getSettings().setDisplayZoomControls(false);
+
+ // Initialize cookieManager.
+ cookieManager = CookieManager.getInstance();
+
+ // Replace the header that `WebView` creates for `X-Requested-With` with a null value. The default value is the application ID (com.stoutner.privacybrowser.standard).
+ customHeaders.put("X-Requested-With", "");
+
+ // Initialize the default preference values the first time the program is run. `this` is the context. `false` keeps this command from resetting any current preferences back to default.
+ PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
+
+ // Get the intent that started the app.
+ final Intent launchingIntent = getIntent();
+
+ // Extract the launching intent data as `launchingIntentUriData`.
+ final Uri launchingIntentUriData = launchingIntent.getData();
+
+ // Convert the launching intent URI data (if it exists) to a string and store it in `formattedUrlString`.
+ if (launchingIntentUriData != null) {
+ formattedUrlString = launchingIntentUriData.toString();
+ }
+
+ // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
+ inFullScreenBrowsingMode = false;
+
+ // Initialize AdView for the free flavor.
+ adView = findViewById(R.id.adView);
+
+ // Apply the settings from the shared preferences.
+ applySettings();
+
+ // Load `formattedUrlString` if we are not proxying through Orbot and waiting for Orbot to connect.
+ if (!(proxyThroughOrbot && !orbotStatus.equals("ON"))) {
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
+ }
+
+ // If the favorite icon is null, load the default.
+ if (favoriteIcon == null) {
+ // We have to use `ContextCompat` until API >= 21.
+ Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
+ BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
+ favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
+ }
+ }
+
+
+ @Override
+ protected void onNewIntent(Intent intent) {
+ // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
+ setIntent(intent);
+
+ if (intent.getData() != null) {
+ // Get the intent data and convert it to a string.
+ final Uri intentUriData = intent.getData();
+ formattedUrlString = intentUriData.toString();
+ }
+
+ // Close the navigation drawer if it is open.
+ if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
+ drawerLayout.closeDrawer(GravityCompat.START);
+ }
+
+ // Load the website.
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
+
+ // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
+ mainWebView.requestFocus();
+ }
+
+ @Override
+ public boolean onCreateOptionsMenu(Menu menu) {
+ // Inflate the menu; this adds items to the action bar if it is present.
+ getMenuInflater().inflate(R.menu.webview_options_menu, menu);
+
+ // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
+ mainMenu = menu;
+
+ // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(false);
+
+ // Get handles for the menu items.
+ MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
+ MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
+ MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
+ MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
+
+ // Only display third-Party Cookies if SDK >= 21
+ toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
+
+ // Get the shared preference values. `this` references the current context.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+ // Set the status of the additional app bar icons. The default is `false`.
+ if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
+ toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+ toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+ toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+ } else { //Do not display the additional icons.
+ toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
+ toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
+ toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
+ }
+
+ return true;
+ }
+
+ @Override
+ public boolean onPrepareOptionsMenu(Menu menu) {
+ // Get handles for the menu items.
+ MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
+ MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
+ MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
+ MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
+ MenuItem clearCookies = menu.findItem(R.id.clearCookies);
+ MenuItem clearFormData = menu.findItem(R.id.clearFormData);
+ MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
+
+ // Set the status of the menu item checkboxes.
+ toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
+ toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
+ toggleDomStorage.setChecked(domStorageEnabled);
+ toggleSaveFormData.setChecked(saveFormDataEnabled);
+
+ // Enable third-party cookies if first-party cookies are enabled.
+ toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
+
+ // Enable DOM Storage if JavaScript is enabled.
+ toggleDomStorage.setEnabled(javaScriptEnabled);
+
+ // Enable Clear Cookies if there are any.
+ clearCookies.setEnabled(cookieManager.hasCookies());
+
+ // Enable Clear Form Data is there is any.
+ WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
+ clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
+
+ // Only show `Refresh` if `swipeToRefresh` is disabled.
+ refreshMenuItem.setVisible(!swipeToRefreshEnabled);
+
+ // Initialize font size variables.
+ int fontSize = mainWebView.getSettings().getTextZoom();
+ String fontSizeTitle;
+ MenuItem selectedFontSizeMenuItem;
+
+ // Prepare the font size title and current size menu item.
+ switch (fontSize) {
+ case 50:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
+ break;
+
+ case 75:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
+ break;
+
+ case 100:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
+ break;
+
+ case 125:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
+ break;
+
+ case 150:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
+ break;
+
+ case 175:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
+ break;
+
+ case 200:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
+ break;
+
+ default:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
+ break;
+ }
+
+ // Set the font size title and select the current size menu item.
+ MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
+ fontSizeMenuItem.setTitle(fontSizeTitle);
+ selectedFontSizeMenuItem.setChecked(true);
+
+ // Run all the other default commands.
+ super.onPrepareOptionsMenu(menu);
+
+ // `return true` displays the menu.
+ return true;
+ }
+
+ @Override
+ // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
+ @SuppressLint("SetJavaScriptEnabled")
+ // removeAllCookies is deprecated, but it is required for API < 21.
+ @SuppressWarnings("deprecation")
+ public boolean onOptionsItemSelected(MenuItem menuItem) {
+ int menuItemId = menuItem.getItemId();
+
+ // Set the commands that relate to the menu entries.
+ switch (menuItemId) {
+ case R.id.toggleJavaScript:
+ // Switch the status of javaScriptEnabled.
+ javaScriptEnabled = !javaScriptEnabled;
+
+ // Apply the new JavaScript status.
+ mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
+
+ // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(true);
+
+ // Display a `Snackbar`.
+ if (javaScriptEnabled) { // JavaScrip is enabled.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
+ } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
+ } else { // Privacy mode.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
+ }
+
+ // Reload the WebView.
+ mainWebView.reload();
+ return true;
+
+ case R.id.toggleFirstPartyCookies:
+ // Switch the status of firstPartyCookiesEnabled.
+ firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
+
+ // Update the menu checkbox.
+ menuItem.setChecked(firstPartyCookiesEnabled);
+
+ // Apply the new cookie status.
+ cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
+
+ // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(true);
+
+ // Display a `Snackbar`.
+ if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
+ } else if (javaScriptEnabled){ // JavaScript is still enabled.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
+ } else { // Privacy mode.
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
+ }
+
+ // Reload the WebView.
+ mainWebView.reload();
+ return true;
+
+ case R.id.toggleThirdPartyCookies:
+ if (Build.VERSION.SDK_INT >= 21) {
+ // Switch the status of thirdPartyCookiesEnabled.
+ thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
+
+ // Update the menu checkbox.
+ menuItem.setChecked(thirdPartyCookiesEnabled);
+
+ // Apply the new cookie status.
+ cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
+
+ // Display a `Snackbar`.
+ if (thirdPartyCookiesEnabled) {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
+ } else {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
+ }
+
+ // Reload the WebView.
+ mainWebView.reload();
+ } // Else do nothing because SDK < 21.
+ return true;
+
+ case R.id.toggleDomStorage:
+ // Switch the status of domStorageEnabled.
+ domStorageEnabled = !domStorageEnabled;
+
+ // Update the menu checkbox.
+ menuItem.setChecked(domStorageEnabled);
+
+ // Apply the new DOM Storage status.
+ mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
+
+ // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(true);
+
+ // Display a `Snackbar`.
+ if (domStorageEnabled) {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
+ } else {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
+ }
+
+ // Reload the WebView.
+ mainWebView.reload();
+ return true;
+
+ case R.id.toggleSaveFormData:
+ // Switch the status of saveFormDataEnabled.
+ saveFormDataEnabled = !saveFormDataEnabled;
+
+ // Update the menu checkbox.
+ menuItem.setChecked(saveFormDataEnabled);
+
+ // Apply the new form data status.
+ mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
+
+ // Display a `Snackbar`.
+ if (saveFormDataEnabled) {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
+ } else {
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
+ }
+
+ // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(true);
+
+ // Reload the WebView.
+ mainWebView.reload();
+ return true;
+
+ case R.id.clearCookies:
+ if (Build.VERSION.SDK_INT < 21) {
+ cookieManager.removeAllCookie();
+ } else {
+ cookieManager.removeAllCookies(null);
+ }
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
+ return true;
+
+ case R.id.clearDomStorage:
+ WebStorage webStorage = WebStorage.getInstance();
+ webStorage.deleteAllData();
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
+ return true;
+
+ case R.id.clearFormData:
+ WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
+ mainWebViewDatabase.clearFormData();
+ Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_deleted, Snackbar.LENGTH_SHORT).show();
+ return true;
+
+ case R.id.fontSizeFiftyPercent:
+ mainWebView.getSettings().setTextZoom(50);
+ return true;
+
+ case R.id.fontSizeSeventyFivePercent:
+ mainWebView.getSettings().setTextZoom(75);
+ return true;
+
+ case R.id.fontSizeOneHundredPercent:
+ mainWebView.getSettings().setTextZoom(100);
+ return true;
+
+ case R.id.fontSizeOneHundredTwentyFivePercent:
+ mainWebView.getSettings().setTextZoom(125);
+ return true;
+
+ case R.id.fontSizeOneHundredFiftyPercent:
+ mainWebView.getSettings().setTextZoom(150);
+ return true;
+
+ case R.id.fontSizeOneHundredSeventyFivePercent:
+ mainWebView.getSettings().setTextZoom(175);
+ return true;
+
+ case R.id.fontSizeTwoHundredPercent:
+ mainWebView.getSettings().setTextZoom(200);
+ return true;
+
+ case R.id.find_on_page:
+ // Hide the URL app bar.
+ supportAppBar.setVisibility(View.GONE);
+
+ // Show the Find on Page `RelativeLayout`.
+ findOnPageLinearLayout.setVisibility(View.VISIBLE);
+
+ // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android.
+ // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
+ findOnPageEditText.postDelayed(new Runnable()
+ {
+ @Override
+ public void run()
+ {
+ // Set the focus on `findOnPageEditText`.
+ findOnPageEditText.requestFocus();
+
+ // Display the keyboard.
+ inputMethodManager.showSoftInput(findOnPageEditText, 0);
+ }
+ }, 200);
+ return true;
+
+ case R.id.share:
+ Intent shareIntent = new Intent();
+ shareIntent.setAction(Intent.ACTION_SEND);
+ shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
+ shareIntent.setType("text/plain");
+ startActivity(Intent.createChooser(shareIntent, "Share URL"));
+ return true;
+
+ case R.id.addToHomescreen:
+ // Show the `CreateHomeScreenShortcutDialog` `AlertDialog` and name this instance `R.string.create_shortcut`.
+ AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcutDialog();
+ createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
+
+ //Everything else will be handled by `CreateHomeScreenShortcutDialog` and the associated listener below.
+ return true;
+
+ case R.id.print:
+ // Get a `PrintManager` instance.
+ PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
+
+ // Convert `mainWebView` to `printDocumentAdapter`.
+ PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
+
+ // Print the document. The print attributes are `null`.
+ printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
+ return true;
+
+ case R.id.refresh:
+ mainWebView.reload();
+ return true;
+
+ default:
+ // Don't consume the event.
+ return super.onOptionsItemSelected(menuItem);
+ }
+ }
+
+ // removeAllCookies is deprecated, but it is required for API < 21.
+ @SuppressWarnings("deprecation")
+ @Override
+ public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
+ int menuItemId = menuItem.getItemId();
+
+ switch (menuItemId) {
+ case R.id.home:
+ mainWebView.loadUrl(homepage, customHeaders);
+ break;
+
+ case R.id.back:
+ if (mainWebView.canGoBack()) {
+ mainWebView.goBack();
+ }
+ break;
+
+ case R.id.forward:
+ if (mainWebView.canGoForward()) {
+ mainWebView.goForward();
+ }
+ break;
+
+ case R.id.history:
+ // Gte the `WebBackForwardList`.
+ WebBackForwardList webBackForwardList = mainWebView.copyBackForwardList();
+
+ // Show the `UrlHistoryDialog` `AlertDialog` and name this instance `R.string.history`. `this` is the `Context`.
+ AppCompatDialogFragment urlHistoryDialogFragment = UrlHistoryDialog.loadBackForwardList(this, webBackForwardList);
+ urlHistoryDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.history));
+ break;
+
+ case R.id.bookmarks:
+ // Launch BookmarksActivity.
+ Intent bookmarksIntent = new Intent(this, BookmarksActivity.class);
+ startActivity(bookmarksIntent);
+ break;
+
+ case R.id.downloads:
+ // Launch the system Download Manager.
+ Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
+
+ // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
+ downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+ startActivity(downloadManagerIntent);
+ break;
+
+ case R.id.settings:
+ // Launch `SettingsActivity`.
+ Intent settingsIntent = new Intent(this, SettingsActivity.class);
+ startActivity(settingsIntent);
+ break;
+
+ case R.id.domains:
+ // Launch `DomainsActivity`.
+ Intent domainsIntent = new Intent(this, DomainsActivity.class);
+ startActivity(domainsIntent);
+ break;
+
+ case R.id.guide:
+ // Launch `GuideActivity`.
+ Intent guideIntent = new Intent(this, GuideActivity.class);
+ startActivity(guideIntent);
+ break;
+
+ case R.id.about:
+ // Launch `AboutActivity`.
+ Intent aboutIntent = new Intent(this, AboutActivity.class);
+ startActivity(aboutIntent);
+ break;
+
+ case R.id.clearAndExit:
+ // Clear cookies. The commands changed slightly in API 21.
+ if (Build.VERSION.SDK_INT >= 21) {
+ cookieManager.removeAllCookies(null);
+ } else {
+ cookieManager.removeAllCookie();
+ }
+
+ // Clear DOM storage.
+ WebStorage domStorage = WebStorage.getInstance();
+ domStorage.deleteAllData();
+
+ // Clear form data.
+ WebViewDatabase webViewDatabase = WebViewDatabase.getInstance(this);
+ webViewDatabase.clearFormData();
+
+ // Clear cache. The argument of "true" includes disk files.
+ mainWebView.clearCache(true);
+
+ // Clear the back/forward history.
+ mainWebView.clearHistory();
+
+ // Clear any SSL certificate preferences.
+ mainWebView.clearSslPreferences();
+
+ // Clear `formattedUrlString`.
+ formattedUrlString = null;
+
+ // Clear `customHeaders`.
+ customHeaders.clear();
+
+ // Detach all views from `mainWebViewRelativeLayout`.
+ mainWebViewRelativeLayout.removeAllViews();
+
+ // Destroy the internal state of `mainWebView`.
+ mainWebView.destroy();
+
+ // Manually delete the `app_webview` folder, which contains an additional `WebView` cache. See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
+ Runtime runtime = Runtime.getRuntime();
+ String dataDirString = getApplicationInfo().dataDir; // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
+ try {
+ runtime.exec("rm -rf " + dataDirString + "/app_webview");
+ } catch (IOException e) {
+ // Do nothing if the files do not exist.
+ }
+
+ // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
+ if (Build.VERSION.SDK_INT >= 21) {
+ finishAndRemoveTask();
+ } else {
+ finish();
+ }
+
+ // Remove the terminated program from RAM. The status code is `0`.
+ System.exit(0);
+ break;
+
+ default:
+ break;
+ }
+
+ // Close the navigation drawer.
+ drawerLayout.closeDrawer(GravityCompat.START);
+ return true;
+ }
+
+ @Override
+ public void onPostCreate(Bundle savedInstanceState) {
+ super.onPostCreate(savedInstanceState);
+
+ // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
+ drawerToggle.syncState();
+ }
+
+ @Override
+ public void onConfigurationChanged(Configuration newConfig) {
+ super.onConfigurationChanged(newConfig);
+
+ // Reload the ad for the free flavor if we are not in full screen mode.
+ if (BuildConfig.FLAVOR.contentEquals("free") && !inFullScreenBrowsingMode) {
+ // Reload the ad.
+ BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+
+ // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+ adView = findViewById(R.id.adView);
+ }
+
+ // `invalidateOptionsMenu` should recalculate the number of action buttons from the menu to display on the app bar, but it doesn't because of the this bug: https://code.google.com/p/android/issues/detail?id=20493#c8
+ // ActivityCompat.invalidateOptionsMenu(this);
+ }
+
+ @Override
+ public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
+ // Store the `HitTestResult`.
+ final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
+
+ // Create strings.
+ final String imageUrl;
+ final String linkUrl;
+
+ // Get a handle for the `ClipboardManager`.
+ final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
+
+ switch (hitTestResult.getType()) {
+ // `SRC_ANCHOR_TYPE` is a link.
+ case WebView.HitTestResult.SRC_ANCHOR_TYPE:
+ // Get the target URL.
+ linkUrl = hitTestResult.getExtra();
+
+ // Set the target URL as the title of the `ContextMenu`.
+ menu.setHeaderTitle(linkUrl);
+
+ // Add a `Load URL` entry.
+ menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ mainWebView.loadUrl(linkUrl, customHeaders);
+ return false;
+ }
+ });
+
+ // Add a `Copy URL` entry.
+ menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Save the link URL in a `ClipData`.
+ ClipData srcAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), linkUrl);
+
+ // Set the `ClipData` as the clipboard's primary clip.
+ clipboardManager.setPrimaryClip(srcAnchorTypeClipData);
+ return false;
+ }
+ });
+
+ // Add a `Cancel` entry, which by default closes the `ContextMenu`.
+ menu.add(R.string.cancel);
+ break;
+
+ case WebView.HitTestResult.EMAIL_TYPE:
+ // Get the target URL.
+ linkUrl = hitTestResult.getExtra();
+
+ // Set the target URL as the title of the `ContextMenu`.
+ menu.setHeaderTitle(linkUrl);
+
+ // Add a `Write Email` entry.
+ menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
+ Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+
+ // Parse the url and set it as the data for the `Intent`.
+ emailIntent.setData(Uri.parse("mailto:" + linkUrl));
+
+ // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
+ emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+ // Make it so.
+ startActivity(emailIntent);
+ return false;
+ }
+ });
+
+ // Add a `Copy Email Address` entry.
+ menu.add(R.string.copy_email_address).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Save the email address in a `ClipData`.
+ ClipData srcEmailTypeClipData = ClipData.newPlainText(getResources().getString(R.string.email_address), linkUrl);
+
+ // Set the `ClipData` as the clipboard's primary clip.
+ clipboardManager.setPrimaryClip(srcEmailTypeClipData);
+ return false;
+ }
+ });
+
+ // Add a `Cancel` entry, which by default closes the `ContextMenu`.
+ menu.add(R.string.cancel);
+ break;
+
+ // `IMAGE_TYPE` is an image.
+ case WebView.HitTestResult.IMAGE_TYPE:
+ // Get the image URL.
+ imageUrl = hitTestResult.getExtra();
+
+ // Set the image URL as the title of the `ContextMenu`.
+ menu.setHeaderTitle(imageUrl);
+
+ // Add a `View Image` entry.
+ menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ mainWebView.loadUrl(imageUrl, customHeaders);
+ return false;
+ }
+ });
+
+ // Add a `Download Image` entry.
+ menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Show the `DownloadImageDialog` `AlertDialog` and name this instance `@string/download`.
+ AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
+ downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
+ return false;
+ }
+ });
+
+ // Add a `Copy URL` entry.
+ menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Save the image URL in a `ClipData`.
+ ClipData srcImageTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
+
+ // Set the `ClipData` as the clipboard's primary clip.
+ clipboardManager.setPrimaryClip(srcImageTypeClipData);
+ return false;
+ }
+ });
+
+ // Add a `Cancel` entry, which by default closes the `ContextMenu`.
+ menu.add(R.string.cancel);
+ break;
+
+
+ // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
+ case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
+ // Get the image URL.
+ imageUrl = hitTestResult.getExtra();
+
+ // Set the image URL as the title of the `ContextMenu`.
+ menu.setHeaderTitle(imageUrl);
+
+ // Add a `View Image` entry.
+ menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ mainWebView.loadUrl(imageUrl, customHeaders);
+ return false;
+ }
+ });
+
+ // Add a `Download Image` entry.
+ menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Show the `DownloadImageDialog` `AlertDialog` and name this instance `@string/download`.
+ AppCompatDialogFragment downloadImageDialogFragment = DownloadImageDialog.imageUrl(imageUrl);
+ downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
+ return false;
+ }
+ });
+
+ // Add a `Copy URL` entry.
+ menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
+ @Override
+ public boolean onMenuItemClick(MenuItem item) {
+ // Save the image URL in a `ClipData`.
+ ClipData srcImageAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
+
+ // Set the `ClipData` as the clipboard's primary clip.
+ clipboardManager.setPrimaryClip(srcImageAnchorTypeClipData);
+ return false;
+ }
+ });
+
+ // Add a `Cancel` entry, which by default closes the `ContextMenu`.
+ menu.add(R.string.cancel);
+ break;
+ }
+ }
+
+ @Override
+ public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
+ // Get shortcutNameEditText from the alert dialog.
+ EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
+
+ // Create the bookmark shortcut based on formattedUrlString.
+ Intent bookmarkShortcut = new Intent();
+ bookmarkShortcut.setAction(Intent.ACTION_VIEW);
+ bookmarkShortcut.setData(Uri.parse(formattedUrlString));
+
+ // Place the bookmark shortcut on the home screen.
+ Intent placeBookmarkShortcut = new Intent();
+ placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
+ placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
+ placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
+ placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
+ sendBroadcast(placeBookmarkShortcut);
+ }
+
+ @Override
+ public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
+ // Download the image if it has an HTTP or HTTPS URI.
+ if (imageUrl.startsWith("http")) {
+ // Get a handle for the system `DOWNLOAD_SERVICE`.
+ DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
+
+ // Parse `imageUrl`.
+ DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
+
+ // Pass cookies to download manager if cookies are enabled. This is required to download images from websites that require a login.
+ if (firstPartyCookiesEnabled) {
+ // Get the cookies for `imageUrl`.
+ String cookies = cookieManager.getCookie(imageUrl);
+
+ // Add the cookies to `downloadRequest`. In the HTTP request header, cookies are named `Cookie`.
+ downloadRequest.addRequestHeader("Cookie", cookies);
+ }
+
+ // Get the file name from `dialogFragment`.
+ EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
+ String imageName = downloadImageNameEditText.getText().toString();
+
+ // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
+ if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
+ downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
+ } else { // Only set the title using `imageName`.
+ downloadRequest.setTitle(imageName);
+ }
+
+ // Allow `MediaScanner` to index the download if it is a media file.
+ downloadRequest.allowScanningByMediaScanner();
+
+ // Add the URL as the description for the download.
+ downloadRequest.setDescription(imageUrl);
+
+ // Show the download notification after the download is completed.
+ downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
+
+ // Initiate the download.
+ downloadManager.enqueue(downloadRequest);
+ } else { // The image is not an HTTP or HTTPS URI.
+ Snackbar.make(mainWebView, R.string.cannot_download_image, Snackbar.LENGTH_INDEFINITE).show();
+ }
+ }
+
+ @Override
+ public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
+ // Download the file if it has an HTTP or HTTPS URI.
+ if (downloadUrl.startsWith("http")) {
+
+ // Get a handle for the system `DOWNLOAD_SERVICE`.
+ DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
+
+ // Parse `downloadUrl`.
+ DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
+
+ // Pass cookies to download manager if cookies are enabled. This is required to download files from websites that require a login.
+ if (firstPartyCookiesEnabled) {
+ // Get the cookies for `downloadUrl`.
+ String cookies = cookieManager.getCookie(downloadUrl);
+
+ // Add the cookies to `downloadRequest`. In the HTTP request header, cookies are named `Cookie`.
+ downloadRequest.addRequestHeader("Cookie", cookies);
+ }
+
+ // Get the file name from `dialogFragment`.
+ EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
+ String fileName = downloadFileNameEditText.getText().toString();
+
+ // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
+ if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download location to `/sdcard/Android/data/com.stoutner.privacybrowser.standard/files` named `fileName`.
+ downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
+ } else { // Only set the title using `fileName`.
+ downloadRequest.setTitle(fileName);
+ }
+
+ // Allow `MediaScanner` to index the download if it is a media file.
+ downloadRequest.allowScanningByMediaScanner();
+
+ // Add the URL as the description for the download.
+ downloadRequest.setDescription(downloadUrl);
+
+ // Show the download notification after the download is completed.
+ downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
+
+ // Initiate the download.
+ downloadManager.enqueue(downloadRequest);
+ } else { // The download is not an HTTP or HTTPS URI.
+ Snackbar.make(mainWebView, R.string.cannot_download_file, Snackbar.LENGTH_INDEFINITE).show();
+ }
+ }
+
+ public void viewSslCertificate(View view) {
+ // Show the `ViewSslCertificateDialog` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
+ DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificateDialog();
+ viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
+ }
+
+ @Override
+ public void onSslErrorCancel() {
+ sslErrorHandler.cancel();
+ }
+
+ @Override
+ public void onSslErrorProceed() {
+ sslErrorHandler.proceed();
+ }
+
+ @Override
+ public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) {
+ // Load the history entry.
+ mainWebView.goBackOrForward(moveBackOrForwardSteps);
+ }
+
+ @Override
+ public void onClearHistory() {
+ // Clear the history.
+ mainWebView.clearHistory();
+ }
+
+ // Override `onBackPressed` to handle the navigation drawer and `mainWebView`.
+ @Override
+ public void onBackPressed() {
+ // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
+ if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
+ drawerLayout.closeDrawer(GravityCompat.START);
+ } else {
+ // Load the previous URL if available.
+ if (mainWebView.canGoBack()) {
+ mainWebView.goBack();
+ } else {
+ // Pass `onBackPressed()` to the system.
+ super.onBackPressed();
+ }
+ }
+ }
+
+ @Override
+ public void onPause() {
+ // Pause `mainWebView`.
+ mainWebView.onPause();
+
+ // Stop all JavaScript.
+ mainWebView.pauseTimers();
+
+ // Pause the adView or it will continue to consume resources in the background on the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ BannerAd.pauseAd(adView);
+ }
+
+ super.onPause();
+ }
+
+ @Override
+ public void onResume() {
+ super.onResume();
+
+ // Resume JavaScript (if enabled).
+ mainWebView.resumeTimers();
+
+ // Resume `mainWebView`.
+ mainWebView.onResume();
+
+ // Resume the adView for the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ BannerAd.resumeAd(adView);
+ }
+ }
+
+ @Override
+ public void onRestart() {
+ super.onRestart();
+
+ // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`.
+ applySettings();
+
+ // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
+ updatePrivacyIcons(true);
+
+ }
+
+ private void loadUrlFromTextBox() throws UnsupportedEncodingException {
+ // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string.
+ String unformattedUrlString = urlTextBox.getText().toString().trim();
+
+ URL unformattedUrl = null;
+ Uri.Builder formattedUri = new Uri.Builder();
+
+ // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
+ if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
+ // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
+ if (!unformattedUrlString.startsWith("http")) {
+ unformattedUrlString = "http://" + unformattedUrlString;
+ }
+
+ // Convert unformattedUrlString to a URL, then to a URI, and then back to a string, which sanitizes the input and adds in any missing components.
+ try {
+ unformattedUrl = new URL(unformattedUrlString);
+ } catch (MalformedURLException e) {
+ e.printStackTrace();
+ }
+
+ // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
+ final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
+ final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
+ final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
+ final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
+ final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
+
+ formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
+ formattedUrlString = formattedUri.build().toString();
+ } else {
+ // Sanitize the search input and convert it to a DuckDuckGo search.
+ final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
+
+ // Use the correct search URL.
+ if (javaScriptEnabled) { // JavaScript is enabled.
+ formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
+ } else { // JavaScript is disabled.
+ formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
+ }
+ }
+
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
+
+ // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
+ inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+ }
+
+ public void findPreviousOnPage(View view) {
+ // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards.
+ mainWebView.findNext(false);
+ }
+
+ public void findNextOnPage(View view) {
+ // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
+ mainWebView.findNext(true);
+ }
+
+ public void closeFindOnPage(View view) {
+ // Delete the contents of `find_on_page_edittext`.
+ findOnPageEditText.setText(null);
+
+ // Clear the highlighted phrases.
+ mainWebView.clearMatches();
+
+ // Hide the Find on Page `RelativeLayout`.
+ findOnPageLinearLayout.setVisibility(View.GONE);
+
+ // Show the URL app bar.
+ supportAppBar.setVisibility(View.VISIBLE);
+
+ // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
+ inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+ }
+
+ private void applySettings() {
+ // Get the shared preference values. `this` references the current context.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+ // Store the values from `sharedPreferences` in variables.
+ String userAgentString = sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0");
+ String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
+ String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
+ String javaScriptDisabledSearchCustomURLString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
+ String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
+ String javaScriptEnabledSearchCustomURLString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
+ String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
+ String torHomepageString = sharedPreferences.getString("tor_homepage", "https://3g2upl4pq6kufc4m.onion");
+ String torJavaScriptDisabledSearchString = sharedPreferences.getString("tor_javascript_disabled_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
+ String torJavaScriptDisabledSearchCustomURLString = sharedPreferences.getString("tor_javascript_disabled_search_custom_url", "");
+ String torJavaScriptEnabledSearchString = sharedPreferences.getString("tor_javascript_enabled_search", "https://3g2upl4pq6kufc4m.onion/?q=");
+ String torJavaScriptEnabledSearchCustomURLString = sharedPreferences.getString("tor_javascript_enabled_search_custom_url", "");
+ String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
+ swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
+ adBlockerEnabled = sharedPreferences.getBoolean("block_ads", true);
+ boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", false);
+ proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
+ fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("enable_full_screen_browsing_mode", false);
+ hideSystemBarsOnFullscreen = sharedPreferences.getBoolean("hide_system_bars", false);
+ translucentNavigationBarOnFullscreen = sharedPreferences.getBoolean("translucent_navigation_bar", true);
+
+ // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
+ if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting.
+ // Get the values from `sharedPreferences`.
+ javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
+ firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
+ thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
+ domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
+ saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
+
+ // Apply the default settings.
+ mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
+ cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
+ mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
+ mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
+ mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
+
+ // Set third-party cookies status if API >= 21.
+ if (Build.VERSION.SDK_INT >= 21) {
+ cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
+ }
+ }
+
+ // Set the homepage, search, and proxy options.
+ if (proxyThroughOrbot) { // Set the Tor options.
+ // Set `torHomepageString` as `homepage`.
+ homepage = torHomepageString;
+
+ // If formattedUrlString is null assign the homepage to it.
+ if (formattedUrlString == null) {
+ formattedUrlString = homepage;
+ }
+
+ // Set JavaScript disabled search.
+ if (torJavaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
+ javaScriptDisabledSearchURL = torJavaScriptDisabledSearchCustomURLString;
+ } else { // Use the string from the pre-built list.
+ javaScriptDisabledSearchURL = torJavaScriptDisabledSearchString;
+ }
+
+ // Set JavaScript enabled search.
+ if (torJavaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
+ javaScriptEnabledSearchURL = torJavaScriptEnabledSearchCustomURLString;
+ } else { // Use the string from the pre-built list.
+ javaScriptEnabledSearchURL = torJavaScriptEnabledSearchString;
+ }
+
+ // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed.
+ OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
+
+ // Display a message to the user if we are waiting on Orbot.
+ if (!orbotStatus.equals("ON")) {
+ // Save `formattedUrlString` in `pendingUrl`.
+ pendingUrl = formattedUrlString;
+
+ // Load a waiting page. `null` specifies no encoding, which defaults to ASCII.
+ mainWebView.loadData(waitingForOrbotHTMLString, "text/html", null);
+ }
+ } else { // Set the non-Tor options.
+ // Set `homepageString` as `homepage`.
+ homepage = homepageString;
+
+ // If formattedUrlString is null assign the homepage to it.
+ if (formattedUrlString == null) {
+ formattedUrlString = homepage;
+ }
+
+ // Set JavaScript disabled search.
+ if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
+ javaScriptDisabledSearchURL = javaScriptDisabledSearchCustomURLString;
+ } else { // Use the string from the pre-built list.
+ javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
+ }
+
+ // Set JavaScript enabled search.
+ if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
+ javaScriptEnabledSearchURL = javaScriptEnabledSearchCustomURLString;
+ } else { // Use the string from the pre-built list.
+ javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
+ }
+
+ // Reset the proxy to default. The host is `""` and the port is `"0"`.
+ OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
+
+ // Reset `pendingUrl` if we are currently waiting for Orbot to connect.
+ if (!pendingUrl.isEmpty()) {
+ formattedUrlString = pendingUrl;
+ pendingUrl = "";
+ }
+ }
+
+ // Set swipe to refresh.
+ swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
+
+ // Set the user agent initial status.
+ switch (userAgentString) {
+ case "Default user agent":
+ // Set the user agent to `""`, which uses the default value.
+ mainWebView.getSettings().setUserAgentString("");
+ break;
+
+ case "Custom user agent":
+ // Set the custom user agent.
+ mainWebView.getSettings().setUserAgentString(customUserAgentString);
+ break;
+
+ default:
+ // Use the selected user agent.
+ mainWebView.getSettings().setUserAgentString(userAgentString);
+ break;
+ }
+
+ // Set Do Not Track status.
+ if (doNotTrackEnabled) {
+ customHeaders.put("DNT", "1");
+ } else {
+ customHeaders.remove("DNT");
+ }
+
+ // Apply the appropriate full screen mode the `SYSTEM_UI` flags.
+ if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {
+ if (hideSystemBarsOnFullscreen) { // Hide everything.
+ // Remove the translucent navigation setting if it is currently flagged.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+
+ // Remove the translucent status bar overlay.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
+ drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+
+ /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+ * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
+ * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
+ */
+ rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+ } else { // Hide everything except the status and navigation bars.
+ // Add the translucent status flag if it is unset.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ if (translucentNavigationBarOnFullscreen) {
+ // Set the navigation bar to be translucent.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+ } else {
+ // Set the navigation bar to be black.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+ }
+ }
+ } else { // Switch to normal viewing mode.
+ // Reset `inFullScreenBrowsingMode` to `false`.
+ inFullScreenBrowsingMode = false;
+
+ // Show the `appBar`.
+ appBar.show();
+
+ // Show the `BannerAd` in the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
+ BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+
+ // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+ adView = findViewById(R.id.adView);
+ }
+
+ // Remove the translucent navigation bar flag if it is set.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+
+ // Add the translucent status flag if it is unset. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
+ rootCoordinatorLayout.setSystemUiVisibility(0);
+
+ // Constrain `rootCoordinatorLayout` inside the status and navigation bars.
+ rootCoordinatorLayout.setFitsSystemWindows(true);
+ }
+ }
+
+ private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
+ // Get handles for the icons.
+ MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
+ MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
+ MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
+ MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
+
+ // Update `privacyIcon`.
+ if (javaScriptEnabled) { // JavaScript is enabled.
+ privacyIcon.setIcon(R.drawable.javascript_enabled);
+ } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled.
+ privacyIcon.setIcon(R.drawable.warning);
+ } else { // All the dangerous features are disabled.
+ privacyIcon.setIcon(R.drawable.privacy_mode);
+ }
+
+ // Update `firstPartyCookiesIcon`.
+ if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
+ firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
+ } else { // First-party cookies are disabled.
+ firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
+ }
+
+ // Update `domStorageIcon`.
+ if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled.
+ domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
+ } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled.
+ domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
+ } else { // JavaScript is disabled, so DOM storage is ghosted.
+ domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
+ }
+
+ // Update `formDataIcon`.
+ if (saveFormDataEnabled) { // Form data is enabled.
+ formDataIcon.setIcon(R.drawable.form_data_enabled);
+ } else { // Form data is disabled.
+ formDataIcon.setIcon(R.drawable.form_data_disabled);
+ }
+
+ // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity.
+ if (runInvalidateOptionsMenu) {
+ ActivityCompat.invalidateOptionsMenu(this);
+ }
+ }
+}