+ @Override
+ public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
+ // Get handles for the views from `dialogFragment`.
+ EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
+ EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
+ RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
+
+ // Store the bookmark strings.
+ String bookmarkNameString = editBookmarkNameEditText.getText().toString();
+ String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
+
+ // Update the bookmark.
+ if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
+ } else { // Update the bookmark using the `WebView` favorite icon.
+ // Convert the favorite icon to a byte array. `0` is for lossless compression (the only option for a PNG).
+ ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
+ favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
+ byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
+
+ // Update the bookmark and the favorite icon.
+ bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
+ }
+
+ // Update `bookmarksCursor` with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(currentBookmarksFolder);
+
+ // Update the `ListView`.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+ }
+
+ @Override
+ public void onSaveBookmarkFolder(AppCompatDialogFragment dialogFragment, int selectedFolderDatabaseId) {
+ // Get handles for the views from `dialogFragment`.
+ EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
+ RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
+ RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
+ ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
+
+ // Get the new folder name.
+ String newFolderNameString = editFolderNameEditText.getText().toString();
+
+ // Check if the favorite icon has changed.
+ if (currentFolderIconRadioButton.isChecked()) { // Only the name has changed.
+ // Update the name in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
+ } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) { // Only the icon has changed.
+ // Get the new folder icon `Bitmap`.
+ Bitmap folderIconBitmap;
+ if (defaultFolderIconRadioButton.isChecked()) {
+ // Get the default folder icon and convert it to a `Bitmap`.
+ Drawable folderIconDrawable = folderIconImageView.getDrawable();
+ BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+ folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+ } else { // Use the `WebView` favorite icon.
+ folderIconBitmap = favoriteIconBitmap;
+ }
+
+ // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
+ ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
+ byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
+
+ // Update the folder icon in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, folderIconByteArray);
+ } else { // The folder icon and the name have changed.
+ // Get the new folder icon `Bitmap`.
+ Bitmap folderIconBitmap;
+ if (defaultFolderIconRadioButton.isChecked()) {
+ // Get the default folder icon and convert it to a `Bitmap`.
+ Drawable folderIconDrawable = folderIconImageView.getDrawable();
+ BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+ folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+ } else { // Use the `WebView` favorite icon.
+ folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
+ }
+
+ // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
+ ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
+ folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
+ byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
+
+ // Update the folder name and icon in the database.
+ bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, folderIconByteArray);
+ }
+
+ // Update `bookmarksCursor` with the current contents of this folder.
+ bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(currentBookmarksFolder);
+
+ // Update the `ListView`.
+ bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+ }
+
+ @Override
+ public void onHttpAuthenticationCancel() {
+ // Cancel the `HttpAuthHandler`.
+ httpAuthHandler.cancel();
+ }
+
+ @Override
+ public void onHttpAuthenticationProceed(AppCompatDialogFragment dialogFragment) {
+ // Get handles for the `EditTexts`.
+ EditText usernameEditText = dialogFragment.getDialog().findViewById(R.id.http_authentication_username);
+ EditText passwordEditText = dialogFragment.getDialog().findViewById(R.id.http_authentication_password);
+
+ // Proceed with the HTTP authentication.
+ httpAuthHandler.proceed(usernameEditText.getText().toString(), passwordEditText.getText().toString());
+ }
+
+ public void viewSslCertificate(View view) {
+ // Show the `ViewSslCertificateDialog` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
+ DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificateDialog();
+ viewSslCertificateDialogFragment.show(getFragmentManager(), getString(R.string.view_ssl_certificate));
+ }
+
+ @Override
+ public void onSslErrorCancel() {
+ sslErrorHandler.cancel();
+ }
+
+ @Override
+ public void onSslErrorProceed() {
+ sslErrorHandler.proceed();
+ }
+
+ @Override
+ public void onSslMismatchBack() {
+ if (mainWebView.canGoBack()) { // There is a back page in the history.
+ // Reset the formatted URL string so the page will load correctly if blocking of third-party requests is enabled.
+ formattedUrlString = "";
+
+ // Set `navigatingHistory` so that the domain settings are applied when the new URL is loaded.
+ navigatingHistory = true;
+
+ // Go back.
+ mainWebView.goBack();
+ } else { // There are no pages to go back to.
+ // Load a blank page
+ loadUrl("");
+ }
+ }
+
+ @Override
+ public void onSslMismatchProceed() {
+ // Do not check the pinned SSL certificate for this domain again until the domain changes.
+ ignorePinnedSslCertificate = true;
+ }
+
+ @Override
+ public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) {
+ // Reset the formatted URL string so the page will load correctly if blocking of third-party requests is enabled.
+ formattedUrlString = "";
+
+ // Set `navigatingHistory` so that the domain settings are applied when the new URL is loaded.
+ navigatingHistory = true;
+
+ // 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() {
+ if (drawerLayout.isDrawerVisible(GravityCompat.START)) { // The navigation drawer is open.
+ // Close the navigation drawer.
+ drawerLayout.closeDrawer(GravityCompat.START);
+ } else if (drawerLayout.isDrawerVisible(GravityCompat.END)){ // The bookmarks drawer is open.
+ if (currentBookmarksFolder.isEmpty()) { // The home folder is displayed.
+ // close the bookmarks drawer.
+ drawerLayout.closeDrawer(GravityCompat.END);
+ } else { // A subfolder is displayed.
+ // Place the former parent folder in `currentFolder`.
+ currentBookmarksFolder = bookmarksDatabaseHelper.getParentFolder(currentBookmarksFolder);
+
+ // Load the new folder.
+ loadBookmarksFolder();
+ }
+
+ } else if (mainWebView.canGoBack()) { // There is at least one item in the `WebView` history.
+ // Reset the formatted URL string so the page will load correctly if blocking of third-party requests is enabled.
+ formattedUrlString = "";
+
+ // Set `navigatingHistory` so that the domain settings are applied when the new URL is loaded.
+ navigatingHistory = true;
+
+ // Go back.
+ mainWebView.goBack();
+ } else { // There isn't anything to do in Privacy Browser.
+ // Pass `onBackPressed()` to the system.
+ super.onBackPressed();
+ }
+ }
+
+ // Process the results of an upload file chooser. Currently there is only one `startActivityForResult` in this activity, so the request code, used to differentiate them, is ignored.
+ @Override
+ public void onActivityResult(int requestCode, int resultCode, Intent data) {
+ // File uploads only work on API >= 21.
+ if (Build.VERSION.SDK_INT >= 21) {
+ // Pass the file to the WebView.
+ fileChooserCallback.onReceiveValue(WebChromeClient.FileChooserParams.parseResult(resultCode, data));
+ }
+ }
+
+ private void loadUrlFromTextBox() {
+ // 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();
+
+ // Check to see if `unformattedUrlString` is a valid URL. Otherwise, convert it into a search.
+ if (unformattedUrlString.startsWith("content://")) {
+ // Load the entire content URL.
+ formattedUrlString = unformattedUrlString;
+ } else if (Patterns.WEB_URL.matcher(unformattedUrlString).matches() || unformattedUrlString.startsWith("http://") || unformattedUrlString.startsWith("https://")
+ || unformattedUrlString.startsWith("file://")) {
+ // Add `https://` at the beginning if there is no protocol. Otherwise the app will segfault.
+ if (!unformattedUrlString.startsWith("http") && !unformattedUrlString.startsWith("file://") && !unformattedUrlString.startsWith("content://")) {
+ unformattedUrlString = "https://" + unformattedUrlString;
+ }
+
+ // Initialize `unformattedUrl`.
+ URL unformattedUrl = null;
+
+ // 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.
+ String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
+ String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
+ String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
+ String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
+ String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
+
+ // Build the URI.
+ Uri.Builder formattedUri = new Uri.Builder();
+ formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
+
+ // Decode `formattedUri` as a `String` in `UTF-8`.
+ try {
+ formattedUrlString = URLDecoder.decode(formattedUri.build().toString(), "UTF-8");
+ } catch (UnsupportedEncodingException exception) {
+ // Load a blank string.
+ formattedUrlString = "";
+ }
+ } else if (unformattedUrlString.isEmpty()){ // Load a blank web site.
+ // Load a blank string.
+ formattedUrlString = "";
+ } else { // Search for the contents of the URL box.
+ // Create an encoded URL String.
+ String encodedUrlString;
+
+ // Sanitize the search input.
+ try {
+ encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
+ } catch (UnsupportedEncodingException exception) {
+ encodedUrlString = "";
+ }
+
+ // Add the base search URL.
+ formattedUrlString = searchURL + encodedUrlString;
+ }
+
+ // Clear the focus from the URL text box. Otherwise, proximate typing in the box will retain the colorized formatting instead of being reset during refocus.
+ urlTextBox.clearFocus();
+
+ // Make it so.
+ loadUrl(formattedUrlString);
+ }
+
+ private void loadUrl(String url) {// Apply any custom domain settings.
+ // Set the URL as the formatted URL string so that checking third-party requests works correctly.
+ formattedUrlString = url;
+
+ // Apply the domain settings.
+ applyDomainSettings(url, true, false);
+
+ // If loading a website, set `urlIsLoading` to prevent changes in the user agent on websites with redirects from reloading the current website.
+ urlIsLoading = !url.equals("");
+
+ // Load the URL.
+ mainWebView.loadUrl(url, customHeaders);
+ }
+
+ 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 applyAppSettings() {
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+ // Store the values from the shared preferences in variables.
+ incognitoModeEnabled = sharedPreferences.getBoolean("incognito_mode", false);
+ boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", false);
+ proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
+ fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("full_screen_browsing_mode", false);
+ hideSystemBarsOnFullscreen = sharedPreferences.getBoolean("hide_system_bars", false);
+ translucentNavigationBarOnFullscreen = sharedPreferences.getBoolean("translucent_navigation_bar", true);
+ downloadWithExternalApp = sharedPreferences.getBoolean("download_with_external_app", false);
+
+ // Apply the proxy through Orbot settings.
+ applyProxyThroughOrbot(false);
+
+ // 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) { // Privacy Browser is currently in full screen browsing mode.
+ 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 re-hides 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.
+ // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
+ rootCoordinatorLayout.setSystemUiVisibility(0);
+
+ // 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 { // Privacy Browser is not in full screen browsing mode.
+ // Reset the full screen tracker, which could be true if Privacy Browser was in full screen mode before entering settings and full screen browsing was disabled.
+ inFullScreenBrowsingMode = false;
+
+ // Show the `appBar` if `findOnPageLinearLayout` is not visible.
+ if (findOnPageLinearLayout.getVisibility() == View.GONE) {
+ appBar.show();
+ }
+
+ // Show the `BannerAd` in the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ // Initialize the ad. The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
+ AdHelper.initializeAds(findViewById(R.id.adview), getApplicationContext(), getFragmentManager(), getString(R.string.google_app_id), getString(R.string.ad_unit_id));
+ }
+
+ // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
+ rootCoordinatorLayout.setSystemUiVisibility(0);
+
+ // 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);
+
+ // Constrain `rootCoordinatorLayout` inside the status and navigation bars.
+ rootCoordinatorLayout.setFitsSystemWindows(true);
+ }
+ }
+
+ // `reloadWebsite` is used if returning from the Domains activity. Otherwise JavaScript might not function correctly if it is newly enabled.
+ // The deprecated `.getDrawable()` must be used until the minimum API >= 21.
+ @SuppressWarnings("deprecation")
+ private boolean applyDomainSettings(String url, boolean resetFavoriteIcon, boolean reloadWebsite) {
+ // Get the current user agent.
+ String initialUserAgent = mainWebView.getSettings().getUserAgentString();
+
+ // Initialize a variable to track if the user agent changes.
+ boolean userAgentChanged = false;
+
+ // Parse the URL into a URI.
+ Uri uri = Uri.parse(url);
+
+ // Extract the domain from `uri`.
+ String hostName = uri.getHost();
+
+ // Initialize `loadingNewDomainName`.
+ boolean loadingNewDomainName;
+
+ // If either `hostName` or `currentDomainName` are `null`, run the options for loading a new domain name.
+ // The lint suggestion to simplify the `if` statement is incorrect, because `hostName.equals(currentDomainName)` can produce a `null object reference.`
+ //noinspection SimplifiableIfStatement
+ if ((hostName == null) || (currentDomainName == null)) {
+ loadingNewDomainName = true;
+ } else { // Determine if `hostName` equals `currentDomainName`.
+ loadingNewDomainName = !hostName.equals(currentDomainName);
+ }
+
+ // Strings don't like to be null.
+ if (hostName == null) {
+ hostName = "";
+ }
+
+ // Only apply the domain settings if a new domain is being loaded. This allows the user to set temporary settings for JavaScript, cookies, DOM storage, etc.
+ if (loadingNewDomainName) {
+ // Set the new `hostname` as the `currentDomainName`.
+ currentDomainName = hostName;
+
+ // Reset `ignorePinnedSslCertificate`.
+ ignorePinnedSslCertificate = false;
+
+ // Reset the favorite icon if specified.
+ if (resetFavoriteIcon) {
+ favoriteIconBitmap = favoriteIconDefaultBitmap;
+ favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(favoriteIconBitmap, 64, 64, true));
+ }
+
+ // Initialize the database handler. The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
+ DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(this, null, null, 0);
+
+ // Get a full cursor from `domainsDatabaseHelper`.
+ Cursor domainNameCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomain();