]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
Hide the keyboard every time a new webpage loads. https://redmine.stoutner.com/issue...
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index 6442fb2cca6e1c14def76e109e6aca218e1c668c..6bc302adc988ff2f72c513ce8be9bcb2a2f33023 100644 (file)
@@ -34,6 +34,8 @@ import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.database.Cursor;
 import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -41,11 +43,13 @@ import android.net.http.SslCertificate;
 import android.net.http.SslError;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Handler;
 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.FloatingActionButton;
 import android.support.design.widget.NavigationView;
 import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
@@ -70,11 +74,14 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
 import android.webkit.CookieManager;
 import android.webkit.DownloadListener;
+import android.webkit.HttpAuthHandler;
 import android.webkit.SslErrorHandler;
+import android.webkit.ValueCallback;
 import android.webkit.WebBackForwardList;
 import android.webkit.WebChromeClient;
 import android.webkit.WebResourceResponse;
@@ -82,10 +89,13 @@ import android.webkit.WebStorage;
 import android.webkit.WebView;
 import android.webkit.WebViewClient;
 import android.webkit.WebViewDatabase;
+import android.widget.AdapterView;
+import android.widget.CursorAdapter;
 import android.widget.EditText;
 import android.widget.FrameLayout;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
+import android.widget.ListView;
 import android.widget.ProgressBar;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
@@ -95,8 +105,11 @@ 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.HttpAuthenticationDialog;
+import com.stoutner.privacybrowser.dialogs.PinnedSslCertificateMismatchDialog;
 import com.stoutner.privacybrowser.dialogs.UrlHistoryDialog;
 import com.stoutner.privacybrowser.dialogs.ViewSslCertificateDialog;
+import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
 import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
 import com.stoutner.privacybrowser.helpers.OrbotProxyHelper;
 import com.stoutner.privacybrowser.dialogs.DownloadFileDialog;
@@ -104,6 +117,7 @@ import com.stoutner.privacybrowser.dialogs.SslCertificateErrorDialog;
 
 import java.io.BufferedReader;
 import java.io.ByteArrayInputStream;
+import java.io.File;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.UnsupportedEncodingException;
@@ -111,6 +125,7 @@ import java.net.MalformedURLException;
 import java.net.URL;
 import java.net.URLDecoder;
 import java.net.URLEncoder;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -118,22 +133,23 @@ 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 {
+        HttpAuthenticationDialog.HttpAuthenticationListener, PinnedSslCertificateMismatchDialog.PinnedSslCertificateMismatchListener, SslCertificateErrorDialog.SslCertificateErrorListener, DownloadFileDialog.DownloadFileListener,
+        DownloadImageDialog.DownloadImageListener, UrlHistoryDialog.UrlHistoryListener {
 
     // `darkTheme` is public static so it can be accessed from `AboutActivity`, `GuideActivity`, `AddDomainDialog`, `SettingsActivity`, `DomainsActivity`, `DomainsListFragment`, `BookmarksActivity`, `BookmarksDatabaseViewActivity`,
-    // `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `DownloadFileDialog`, `DownloadImageDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`, `MoveToFolderDialog`, `SslCertificateErrorDialog`, `UrlHistoryDialog`, `ViewSslCertificateDialog`,
-    // `CreateHomeScreenShortcutDialog`, and `OrbotProxyHelper`. It is also used in `onCreate()`, `applyAppSettings()`, `applyDomainSettings()`, and `updatePrivacyIcons()`.
+    // `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `DownloadFileDialog`, `DownloadImageDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`, `HttpAuthenticationDialog`, `MoveToFolderDialog`, `SslCertificateErrorDialog`, `UrlHistoryDialog`,
+    // `ViewSslCertificateDialog`, `CreateHomeScreenShortcutDialog`, and `OrbotProxyHelper`. It is also used in `onCreate()`, `applyAppSettings()`, `applyDomainSettings()`, and `updatePrivacyIcons()`.
     public static boolean darkTheme;
 
-    // `favoriteIconBitmap` is public static so it can be accessed from `CreateHomeScreenShortcutDialog`, `BookmarksActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`, `ViewSslCertificateDialog`.
-    // It is also used in `onCreate()`, `onCreateHomeScreenShortcutCreate()`, and `applyDomainSettings`.
+    // `favoriteIconBitmap` is public static so it can be accessed from `CreateHomeScreenShortcutDialog`, `BookmarksActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`,
+    // and `ViewSslCertificateDialog`.  It is also used in `onCreate()`, `onCreateHomeScreenShortcutCreate()`, and `applyDomainSettings`.
     public static Bitmap favoriteIconBitmap;
 
     // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`, `CreateBookmarkDialog`, and `AddDomainDialog`.
     // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
     public static String formattedUrlString;
 
-    // `sslCertificate` is public static so it can be accessed from `ViewSslCertificateDialog`.  It is also used in `onCreate()`.
+    // `sslCertificate` is public static so it can be accessed from `DomainsActivity`, `DomainsListFragment`, `DomainSettingsFragment`, `PinnedSslCertificateMismatchDialog`, and `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()`.
@@ -145,14 +161,28 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `displayWebpageImagesBoolean` is public static so it can be accessed from `DomainSettingsFragment`.  It is also used in `applyAppSettings()` and `applyDomainSettings()`.
     public static boolean displayWebpageImagesBoolean;
 
-    // `reloadOnRestartBoolean` is public static so it can be accessed from `SettingsFragment`.  It is also used in `onRestart()`
-    public static boolean reloadOnRestartBoolean;
+    // `reloadOnRestart` is public static so it can be accessed from `SettingsFragment`.  It is also used in `onRestart()`
+    public static boolean reloadOnRestart;
+
+    // `reloadUrlOnRestart` is public static so it can be accessed from `SettingsFragment`.  It is also used in `onRestart()`.
+    public static boolean loadUrlOnRestart;
+
+    // The pinned domain SSL Certificate variables are public static so they can be accessed from `PinnedSslCertificateMismatchDialog`.  They are also used in `onCreate()` and `applyDomainSettings()`.
+    public static int domainSettingsDatabaseId;
+    public static String pinnedDomainSslIssuedToCNameString;
+    public static String pinnedDomainSslIssuedToONameString;
+    public static String pinnedDomainSslIssuedToUNameString;
+    public static String pinnedDomainSslIssuedByCNameString;
+    public static String pinnedDomainSslIssuedByONameString;
+    public static String pinnedDomainSslIssuedByUNameString;
+    public static Date pinnedDomainSslStartDate;
+    public static Date pinnedDomainSslEndDate;
 
 
     // `appBar` is used in `onCreate()`, `onOptionsItemSelected()`, `closeFindOnPage()`, and `applyAppSettings()`.
     private ActionBar appBar;
 
-    // `navigatingHistory` is used in `onCreate()`, `onNavigationItemSelected()`, and `applyDomainSettings()`.
+    // `navigatingHistory` is used in `onCreate()`, `onNavigationItemSelected()`, `onSslMismatchBack()`, and `applyDomainSettings()`.
     private boolean navigatingHistory;
 
     // `favoriteIconDefaultBitmap` is used in `onCreate()` and `applyDomainSettings`.
@@ -165,7 +195,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     private CoordinatorLayout rootCoordinatorLayout;
 
     // `mainWebView` is used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, `loadUrlFromTextBox()`
-    // and `setDisplayWebpageImages()`.
+    // `onSslMismatchBack()`, and `setDisplayWebpageImages()`.
     private WebView mainWebView;
 
     // `fullScreenVideoFrameLayout` is used in `onCreate()` and `onConfigurationChanged()`.
@@ -186,22 +216,24 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrl()`.
     private final Map<String, String> customHeaders = new HashMap<>();
 
-    // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applyAppSettings()`.
-    // It is `Boolean` instead of `boolean` because `applyAppSettings()` needs to know if it is `null`.
-    private Boolean javaScriptEnabled;
+    // `javaScriptEnabled` is also used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `applyDomainSettings()`, and `updatePrivacyIcons()`.
+    private boolean javaScriptEnabled;
 
-    // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `applyAppSettings()`.
+    // `firstPartyCookiesEnabled` is used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `applyDomainSettings()`.
     private boolean firstPartyCookiesEnabled;
 
-    // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applyAppSettings()`.
+    // `thirdPartyCookiesEnabled` used in `onCreate()`, `onPrepareOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applyDomainSettings()`.
     private boolean thirdPartyCookiesEnabled;
 
-    // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applyAppSettings()`.
+    // `domStorageEnabled` is used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applyDomainSettings()`.
     private boolean domStorageEnabled;
 
-    // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applyAppSettings()`.
+    // `saveFormDataEnabled` is used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applyDomainSettings()`.
     private boolean saveFormDataEnabled;
 
+    // `nightMode` is used in `onCreate()` and  `applyDomainSettings()`.
+    private boolean nightMode;
+
     // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applyAppSettings()`.
     private boolean swipeToRefreshEnabled;
 
@@ -214,7 +246,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `adBlockerEnabled` is used in `onCreate()` and `applyAppSettings()`.
     private boolean adBlockerEnabled;
 
-    // `privacyBrowserRuntime` is used in `onCreate()` and `applyAppSettings()`.
+    // `privacyBrowserRuntime` is used in `onCreate()`, `onOptionsItemSelected()`, and `applyAppSettings()`.
     private Runtime privacyBrowserRuntime;
 
     // `incognitoModeEnabled` is used in `onCreate()` and `applyAppSettings()`.
@@ -232,9 +264,12 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `translucentNavigationBarOnFullscreen` is used in `onCreate()` and `applyAppSettings()`.
     private boolean translucentNavigationBarOnFullscreen;
 
-    // `currentDomainName` is used in `onCreate()`, `onNavigationItemSelected()`, and `applyDomainSettings()`.
+    // `currentDomainName` is used in `onCreate()`, `onNavigationItemSelected()`, `onSslMismatchProceed()`, and `applyDomainSettings()`.
     private String currentDomainName;
 
+    // `ignorePinnedSslCertificateForDomain` is used in `onCreate()`, `onSslMismatchProceed()`, and `applyDomainSettings()`.
+    private boolean ignorePinnedSslCertificate;
+
     // `waitingForOrbot` is used in `onCreate()` and `applyAppSettings()`.
     private boolean waitingForOrbot;
 
@@ -250,7 +285,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `waitingForOrbotData` is used in `onCreate()` and `applyAppSettings()`.
     private String waitingForOrbotHTMLString;
 
-    // `privateDataDirectoryString` is used in `onCreate()` and `onNavigationItemSelected()`.
+    // `privateDataDirectoryString` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`.
     private String privateDataDirectoryString;
 
     // `findOnPageLinearLayout` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
@@ -286,6 +321,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
     private SslErrorHandler sslErrorHandler;
 
+    // `httpAuthHandler` is used in `onCreate()`, `onHttpAuthenticationCancel()`, and `onHttpAuthenticationProceed()`.
+    private static HttpAuthHandler httpAuthHandler;
+
     // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
     private InputMethodManager inputMethodManager;
 
@@ -295,6 +333,21 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `urlIsLoading` is used in `onCreate()`, `loadUrl()`, and `applyDomainSettings()`.
     private boolean urlIsLoading;
 
+    // `pinnedDomainSslCertificate` is used in `onCreate()` and `applyDomainSettings()`.
+    private boolean pinnedDomainSslCertificate;
+
+    // `bookmarksDatabaseHelper` is used in `onCreate()` and `loadBookmarksFolder()`.
+    private BookmarksDatabaseHelper bookmarksDatabaseHelper;
+
+    // `bookmarksListView` is used in `onCreate()` and `loadBookmarksFolder()`.
+    private ListView bookmarksListView;
+
+    // `currentBookmarksFolder` is used in `onCreate()`, `onBackPressed()`, and `loadBookmarksFolder()`.
+    private String currentBookmarksFolder;
+
+    // `bookmarksTitleTextView` is used in `onCreate()` and `loadBookmarksFolder()`.
+    private TextView bookmarksTitleTextView;
+
     @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")
@@ -323,7 +376,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // 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.
+        // `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
         supportAppBar = (Toolbar) findViewById(R.id.app_bar);
         setSupportActionBar(supportAppBar);
         appBar = getSupportActionBar();
@@ -412,6 +465,10 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // Get handles for views that need to be accessed.
         drawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
         rootCoordinatorLayout = (CoordinatorLayout) findViewById(R.id.root_coordinatorlayout);
+        bookmarksListView = (ListView) findViewById(R.id.bookmarks_drawer_listview);
+        bookmarksTitleTextView = (TextView) findViewById(R.id.bookmarks_title_textview);
+        FloatingActionButton createBookmarksFolderFab = (FloatingActionButton) findViewById(R.id.create_bookmark_folder_fab);
+        FloatingActionButton createBookmarkFab = (FloatingActionButton) findViewById(R.id.create_bookmark_fab);
         mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.main_webview_relativelayout);
         mainWebView = (WebView) findViewById(R.id.main_webview);
         findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
@@ -420,6 +477,17 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         urlAppBarRelativeLayout = (RelativeLayout) findViewById(R.id.url_app_bar_relativelayout);
         favoriteIconImageView = (ImageView) findViewById(R.id.favorite_icon);
 
+        // Set the bookmarks drawer resources according to the theme.  This can't be done in the layout due to compatibility issues with the `DrawerLayout` support widget.
+        if (darkTheme) {
+            createBookmarksFolderFab.setImageDrawable(getResources().getDrawable(R.drawable.create_folder_dark));
+            createBookmarkFab.setImageDrawable(getResources().getDrawable(R.drawable.create_bookmark_dark));
+            bookmarksListView.setBackgroundColor(getResources().getColor(R.color.gray_850));
+        } else {
+            createBookmarksFolderFab.setImageDrawable(getResources().getDrawable(R.drawable.create_folder_light));
+            createBookmarkFab.setImageDrawable(getResources().getDrawable(R.drawable.create_bookmark_light));
+            bookmarksListView.setBackgroundColor(getResources().getColor(R.color.white));
+        }
+
         // 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.
@@ -572,8 +640,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             }
         });
 
-        // `DrawerTitle` identifies the `DrawerLayout` in accessibility mode.
+        // `DrawerTitle` identifies the `DrawerLayouts` in accessibility mode.
         drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
+        drawerLayout.setDrawerTitle(GravityCompat.END, getString(R.string.bookmarks));
 
         // Listen for touches on the navigation menu.
         final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationview);
@@ -585,6 +654,46 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
         final MenuItem navigationHistoryMenuItem = navigationMenu.getItem(3);
 
+        // Initialize the bookmarks database helper.  `this` specifies the context.  The two `nulls` do not specify the database name or a `CursorFactory`.
+        // The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
+        bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
+
+        // Initialize `currentBookmarksFolder`.  `""` is the home folder in the database.
+        currentBookmarksFolder = "";
+
+        // Load the home folder, which is `""` in the database.
+        loadBookmarksFolder();
+
+        bookmarksListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                // Convert the id from long to int to match the format of the bookmarks database.
+                int databaseID = (int) id;
+
+                // Get the bookmark `Cursor` for this ID and move it to the first row.
+                Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmarkCursor(databaseID);
+                bookmarkCursor.moveToFirst();
+
+                // Act upon the bookmark according to the type.
+                if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {  // The selected bookmark is a folder.
+                    // Store the new folder name in `currentBookmarksFolder`.
+                    currentBookmarksFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
+
+                    // Load the new folder.
+                    loadBookmarksFolder();
+                } else {  // The selected bookmark is not a folder.
+                    // Load the bookmark URL.
+                    loadUrl(bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL)));
+
+                    // Close the bookmarks drawer.
+                    drawerLayout.closeDrawer(GravityCompat.END);
+                }
+
+                // Close the `Cursor`.
+                bookmarkCursor.close();
+            }
+        });
+
         // The `DrawerListener` allows us to update the Navigation Menu.
         drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
             @Override
@@ -708,11 +817,27 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 }
             }
 
+            // Handle HTTP authentication requests.
+            @Override
+            public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) {
+                // Store `handler` so it can be accessed from `onHttpAuthenticationCancel()` and `onHttpAuthenticationProceed()`.
+                httpAuthHandler = handler;
+
+                // Display the HTTP authentication dialog.
+                AppCompatDialogFragment httpAuthenticationDialogFragment = HttpAuthenticationDialog.displayDialog(host, realm);
+                httpAuthenticationDialogFragment.show(getSupportFragmentManager(), getString(R.string.http_authentication));
+            }
+
             // Update the URL in urlTextBox when the page starts to load.
             @Override
             public void onPageStarted(WebView view, String url, Bitmap favicon) {
-                // Reset `webViewTitle`
-                webViewTitle = getString(R.string.no_title);
+                // If night mode is enabled, hide `mainWebView` until after the night mode CSS is applied.
+                if (nightMode) {
+                    mainWebView.setVisibility(View.INVISIBLE);
+                }
+
+                // Hide the keyboard.  `0` indicates no additional flags.
+                inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
 
                 // Check to see if we are waiting on Orbot.
                 if (!waitingForOrbot) {  // We are not waiting on Orbot, so we need to process the URL.
@@ -735,7 +860,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 }
             }
 
-            // Update formattedUrlString and urlTextBox.  It is necessary to do this after the page finishes loading because the final URL can change during load.
+            // It is necessary to update `formattedUrlString` and `urlTextBox` after the page finishes loading because the final URL can change during load.
             @Override
             public void onPageFinished(WebView view, String url) {
                 // Reset `urlIsLoading`, which is used to prevent reloads on redirect if the user agent changes.
@@ -792,20 +917,100 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                         }
                     }
 
-                    // Store the SSL certificate so it can be accessed from `ViewSslCertificateDialog`.
+                    // Store the SSL certificate so it can be accessed from `ViewSslCertificateDialog` and `PinnedSslCertificateMismatchDialog`.
                     sslCertificate = mainWebView.getCertificate();
+
+                    // Check the current website SSL certificate against the pinned SSL certificate if there is a pinned SSL certificate the user has not chosen to ignore it for this session.
+                    if (pinnedDomainSslCertificate && !ignorePinnedSslCertificate) {
+                        // Initialize the current SSL certificate variables.
+                        String currentWebsiteIssuedToCName = "";
+                        String currentWebsiteIssuedToOName = "";
+                        String currentWebsiteIssuedToUName = "";
+                        String currentWebsiteIssuedByCName = "";
+                        String currentWebsiteIssuedByOName = "";
+                        String currentWebsiteIssuedByUName = "";
+                        Date currentWebsiteSslStartDate = null;
+                        Date currentWebsiteSslEndDate = null;
+
+
+                        // Extract the individual pieces of information from the current website SSL certificate if it is not null.
+                        if (sslCertificate != null) {
+                            currentWebsiteIssuedToCName = sslCertificate.getIssuedTo().getCName();
+                            currentWebsiteIssuedToOName = sslCertificate.getIssuedTo().getOName();
+                            currentWebsiteIssuedToUName = sslCertificate.getIssuedTo().getUName();
+                            currentWebsiteIssuedByCName = sslCertificate.getIssuedBy().getCName();
+                            currentWebsiteIssuedByOName = sslCertificate.getIssuedBy().getOName();
+                            currentWebsiteIssuedByUName = sslCertificate.getIssuedBy().getUName();
+                            currentWebsiteSslStartDate = sslCertificate.getValidNotBeforeDate();
+                            currentWebsiteSslEndDate = sslCertificate.getValidNotAfterDate();
+                        }
+
+                        // Initialize `String` variables to store the SSL certificate dates.  `Strings` are needed to compare the values below, which doesn't work with `Dates` if they are `null`.
+                        String currentWebsiteSslStartDateString = "";
+                        String currentWebsiteSslEndDateString = "";
+                        String pinnedDomainSslStartDateString = "";
+                        String pinnedDomainSslEndDateString = "";
+
+                        // Convert the `Dates` to `Strings` if they are not `null`.
+                        if (currentWebsiteSslStartDate != null) {
+                            currentWebsiteSslStartDateString = currentWebsiteSslStartDate.toString();
+                        }
+
+                        if (currentWebsiteSslEndDate != null) {
+                            currentWebsiteSslEndDateString = currentWebsiteSslEndDate.toString();
+                        }
+
+                        if (pinnedDomainSslStartDate != null) {
+                            pinnedDomainSslStartDateString = pinnedDomainSslStartDate.toString();
+                        }
+
+                        if (pinnedDomainSslEndDate != null) {
+                            pinnedDomainSslEndDateString = pinnedDomainSslEndDate.toString();
+                        }
+
+                        // Check to see if the pinned SSL certificate matches the current website certificate.
+                        if (!currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) || !currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) || !currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) ||
+                                !currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) || !currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) || !currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) ||
+                                !currentWebsiteSslStartDateString.equals(pinnedDomainSslStartDateString) || !currentWebsiteSslEndDateString.equals(pinnedDomainSslEndDateString)) {  // The pinned SSL certificate doesn't match the current domain certificate.
+                            //Display the pinned SSL certificate mismatch `AlertDialog`.
+                            AppCompatDialogFragment pinnedSslCertificateMismatchDialogFragment = new PinnedSslCertificateMismatchDialog();
+                            pinnedSslCertificateMismatchDialogFragment.show(getSupportFragmentManager(), getString(R.string.ssl_certificate_mismatch));
+                        }
+                    }
                 }
             }
 
             // 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));
+                // Get the current website SSL certificate.
+                SslCertificate currentWebsiteSslCertificate = error.getCertificate();
+
+                // Extract the individual pieces of information from the current website SSL certificate.
+                String currentWebsiteIssuedToCName = currentWebsiteSslCertificate.getIssuedTo().getCName();
+                String currentWebsiteIssuedToOName = currentWebsiteSslCertificate.getIssuedTo().getOName();
+                String currentWebsiteIssuedToUName = currentWebsiteSslCertificate.getIssuedTo().getUName();
+                String currentWebsiteIssuedByCName = currentWebsiteSslCertificate.getIssuedBy().getCName();
+                String currentWebsiteIssuedByOName = currentWebsiteSslCertificate.getIssuedBy().getOName();
+                String currentWebsiteIssuedByUName = currentWebsiteSslCertificate.getIssuedBy().getUName();
+                Date currentWebsiteSslStartDate = currentWebsiteSslCertificate.getValidNotBeforeDate();
+                Date currentWebsiteSslEndDate = currentWebsiteSslCertificate.getValidNotAfterDate();
+
+                // Proceed to the website if the current SSL website certificate matches the pinned domain certificate.
+                if (pinnedDomainSslCertificate &&
+                        currentWebsiteIssuedToCName.equals(pinnedDomainSslIssuedToCNameString) && currentWebsiteIssuedToOName.equals(pinnedDomainSslIssuedToONameString) && currentWebsiteIssuedToUName.equals(pinnedDomainSslIssuedToUNameString) &&
+                        currentWebsiteIssuedByCName.equals(pinnedDomainSslIssuedByCNameString) && currentWebsiteIssuedByOName.equals(pinnedDomainSslIssuedByONameString) && currentWebsiteIssuedByUName.equals(pinnedDomainSslIssuedByUNameString) &&
+                        currentWebsiteSslStartDate.equals(pinnedDomainSslStartDate) && currentWebsiteSslEndDate.equals(pinnedDomainSslEndDate)) {  // An SSL certificate is pinned and matches the current domain certificate.
+                    // Proceed to the website without displaying an error.
+                    handler.proceed();
+                } else {  // Either there isn't a pinned SSL certificate or it doesn't match the current website certificate.
+                    // 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(), getString(R.string.ssl_certificate_error));
+                }
             }
         });
 
@@ -816,12 +1021,50 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             // Update the progress bar when a page is loading.
             @Override
             public void onProgressChanged(WebView view, int progress) {
+                // Inject the night mode CSS if night mode is enabled.
+                if (nightMode) {
+                    // `background-color: #212121` sets the background to be dark gray.  `color: #BDBDBD` sets the text color to be light gray.  `box-shadow: none` removes a lower underline on links used by WordPress.
+                    // `text-decoration: none` removes all text underlines.  `text-shadow: none` removes text shadows, which usually have a hard coded color.  `border: none` removes all borders, which can also be used to underline text.
+                    // `a {color: #1565C0}` sets links to be a dark blue.  `!important` takes precedent over any existing sub-settings.
+                    mainWebView.evaluateJavascript("(function() {var parent = document.getElementsByTagName('head').item(0); var style = document.createElement('style'); style.type = 'text/css'; style.innerHTML = '" +
+                            "* {background-color: #212121 !important; color: #BDBDBD !important; box-shadow: none !important; text-decoration: none !important; text-shadow: none !important; border: none !important;}" +
+                            "a {color: #1565C0 !important;}" +
+                            "'; parent.appendChild(style)})()", new ValueCallback<String>() {
+                        @Override
+                        public void onReceiveValue(String value) {
+                            // Initialize a `Handler` to display `mainWebView`.
+                            Handler displayWebViewHandler = new Handler();
+
+                            // Setup a `Runnable` to display `mainWebView` after a delay to allow the CSS to be applied.
+                            Runnable displayWebViewRunnable = new Runnable() {
+                                public void run() {
+                                    // Only display `mainWebView` if the progress bar is one.  This prevents the display of the `WebView` while it is still loading.
+                                    if (progressBar.getVisibility() == View.GONE) {
+                                        mainWebView.setVisibility(View.VISIBLE);
+                                    }
+                                }
+                            };
+
+                            // Use `displayWebViewHandler` to delay the displaying of `mainWebView` for 500 milliseconds.
+                            displayWebViewHandler.postDelayed(displayWebViewRunnable, 500);
+                        }
+                    });
+                }
+
                 progressBar.setProgress(progress);
                 if (progress < 100) {
+                    // Show the progress bar.
                     progressBar.setVisibility(View.VISIBLE);
                 } else {
+                    // Hide the progress bar.
                     progressBar.setVisibility(View.GONE);
 
+                    // Display `mainWebView` if night mode is disabled.
+                    // Because of a race condition between `applyDomainSettings` and `onPageStarted`, when night mode is set by domain settings the `WebView` may be hidden even if night mode is not currently enabled.
+                    if (!nightMode) {
+                        mainWebView.setVisibility(View.VISIBLE);
+                    }
+
                     //Stop the `SwipeToRefresh` indicator if it is running
                     swipeRefreshLayout.setRefreshing(false);
                 }
@@ -907,7 +1150,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             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));
+                downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
             }
         });
 
@@ -923,6 +1166,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // Set `mainWebView` to load in overview mode (zoomed out to the maximum width).
         mainWebView.getSettings().setLoadWithOverviewMode(true);
 
+        // Explicitly disable geolocation.
+        mainWebView.getSettings().setGeolocationEnabled(false);
+
         // Initialize cookieManager.
         cookieManager = CookieManager.getInstance();
 
@@ -961,6 +1207,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         thirdPartyCookiesEnabled = false;
         domStorageEnabled = false;
         saveFormDataEnabled = false;
+        nightMode = false;
 
         // Initialize `webViewTitle`.
         webViewTitle = getString(R.string.no_title);
@@ -1021,12 +1268,21 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         setDisplayWebpageImages();
 
         // Reload the webpage if displaying of images has been disabled in `SettingsFragment`.
-        if (reloadOnRestartBoolean) {
+        if (reloadOnRestart) {
             // Reload `mainWebView`.
             mainWebView.reload();
 
             // Reset `reloadOnRestartBoolean`.
-            reloadOnRestartBoolean = false;
+            reloadOnRestart = false;
+        }
+
+        // Load the URL on restart to apply changes to night mode.
+        if (loadUrlOnRestart) {
+            // Load the current `formattedUrlString`.
+            loadUrl(formattedUrlString);
+
+            // Reset `loadUrlOnRestart.
+            loadUrlOnRestart = false;
         }
     }
 
@@ -1108,6 +1364,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         MenuItem toggleDomStorageMenuItem = menu.findItem(R.id.toggle_dom_storage);
         MenuItem toggleSaveFormDataMenuItem = menu.findItem(R.id.toggle_save_form_data);
         MenuItem clearCookiesMenuItem = menu.findItem(R.id.clear_cookies);
+        MenuItem clearDOMStorageMenuItem = menu.findItem(R.id.clear_dom_storage);
         MenuItem clearFormDataMenuItem = menu.findItem(R.id.clear_form_data);
         MenuItem fontSizeMenuItem = menu.findItem(R.id.font_size);
         MenuItem displayImagesMenuItem = menu.findItem(R.id.display_images);
@@ -1123,13 +1380,30 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // Enable third-party cookies if first-party cookies are enabled.
         toggleThirdPartyCookiesMenuItem.setEnabled(firstPartyCookiesEnabled);
 
-        // Enable DOM Storage if JavaScript is enabled.
+        // Enable `DOM Storage` if JavaScript is enabled.
         toggleDomStorageMenuItem.setEnabled(javaScriptEnabled);
 
-        // Enable Clear Cookies if there are any.
+        // Enable `Clear Cookies` if there are any.
         clearCookiesMenuItem.setEnabled(cookieManager.hasCookies());
 
-        // Enable Clear Form Data is there is any.
+        // Get a count of the number of files in the `Local Storage` directory.
+        File localStorageDirectory = new File (privateDataDirectoryString + "/app_webview/Local Storage/");
+        int localStorageDirectoryNumberOfFiles = 0;
+        if (localStorageDirectory.exists()) {
+            localStorageDirectoryNumberOfFiles = localStorageDirectory.list().length;
+        }
+
+        // Get a count of the number of files in the `IndexedDB` directory.
+        File indexedDBDirectory = new File (privateDataDirectoryString + "/app_webview/IndexedDB");
+        int indexedDBDirectoryNumberOfFiles = 0;
+        if (indexedDBDirectory.exists()) {
+            indexedDBDirectoryNumberOfFiles = indexedDBDirectory.list().length;
+        }
+
+        // Enable `Clear DOM Storage` if there is any.
+        clearDOMStorageMenuItem.setEnabled(localStorageDirectoryNumberOfFiles > 0 || indexedDBDirectoryNumberOfFiles > 0);
+
+        // Enable `Clear Form Data` is there is any.
         WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
         clearFormDataMenuItem.setEnabled(mainWebViewDatabase.hasFormData());
 
@@ -1141,47 +1415,47 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // Prepare the font size title and current size menu item.
         switch (fontSize) {
             case 25:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.twenty_five_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.twenty_five_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_twenty_five_percent);
                 break;
 
             case 50:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.fifty_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_fifty_percent);
                 break;
 
             case 75:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.seventy_five_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_seventy_five_percent);
                 break;
 
             case 100:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.one_hundred_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_one_hundred_percent);
                 break;
 
             case 125:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.one_hundred_twenty_five_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_one_hundred_twenty_five_percent);
                 break;
 
             case 150:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.one_hundred_fifty_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_one_hundred_fifty_percent);
                 break;
 
             case 175:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.one_hundred_seventy_five_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_one_hundred_seventy_five_percent);
                 break;
 
             case 200:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.two_hundred_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_two_hundred_percent);
                 break;
 
             default:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+                fontSizeTitle = getString(R.string.font_size) + " - " + getString(R.string.one_hundred_percent);
                 selectedFontSizeMenuItem = menu.findItem(R.id.font_size_one_hundred_percent);
                 break;
         }
@@ -1384,6 +1658,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                                         // Delete the DOM Storage.
                                         WebStorage webStorage = WebStorage.getInstance();
                                         webStorage.deleteAllData();
+
+                                        // Manually remove `IndexedDB` if it exists.
+                                        try {
+                                            privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview/IndexedDB");
+                                        } catch (IOException e) {
+                                            // Do nothing if an error is thrown.
+                                        }
                                 }
                             }
                         })
@@ -1464,12 +1745,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
 
             case R.id.share:
                 // Setup the share string.
-                String shareString;
-                if (webViewTitle != null) {
-                    shareString = webViewTitle + " â€“ " + urlTextBox.getText().toString();
-                } else {
-                    shareString = urlTextBox.getText().toString();
-                }
+                String shareString = webViewTitle + " â€“ " + urlTextBox.getText().toString();
 
                 // Create the share intent.
                 Intent shareIntent = new Intent();
@@ -1488,17 +1764,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 // 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()
-                {
+                // 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.
+                        // Display the keyboard.  `0` sets no input flags.
                         inputMethodManager.showSoftInput(findOnPageEditText, 0);
                     }
                 }, 200);
@@ -1512,13 +1786,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
 
                 // Print the document.  The print attributes are `null`.
-                printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
+                printManager.print(getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
                 return true;
 
             case R.id.add_to_homescreen:
                 // 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));
+                createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getString(R.string.create_shortcut));
 
                 //Everything else will be handled by `CreateHomeScreenShortcutDialog` and the associated listener below.
                 return true;
@@ -1570,7 +1844,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
 
                 // 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));
+                urlHistoryDialogFragment.show(getSupportFragmentManager(), getString(R.string.history));
                 break;
 
             case R.id.bookmarks:
@@ -1650,10 +1924,16 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     WebStorage webStorage = WebStorage.getInstance();
                     webStorage.deleteAllData();
 
-                    // Manually delete the DOM storage directory, as `WebStorage` sometimes will not flush its changes to disk before `System.exit(0)` is run.
+                    // Manually delete the DOM storage files and directories, as `WebStorage` sometimes will not flush its changes to disk before `System.exit(0)` is run.
                     try {
                         // We have to use a `String[]` because the directory contains a space and `Runtime.exec` will not escape the string correctly otherwise.
                         privacyBrowserRuntime.exec(new String[] {"rm", "-rf", privateDataDirectoryString + "/app_webview/Local Storage/"});
+
+                        // We have to use multiple commands because `Runtime.exec()` does not like `*`.
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview/IndexedDB");
+                        privacyBrowserRuntime.exec("rm -f " + privateDataDirectoryString + "/app_webview/QuotaManager");
+                        privacyBrowserRuntime.exec("rm -f " + privateDataDirectoryString + "/app_webview/QuotaManager-journal");
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview/databases");
                     } catch (IOException e) {
                         // Do nothing if an error is thrown.
                     }
@@ -1796,7 +2076,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     @Override
                     public boolean onMenuItemClick(MenuItem item) {
                         // Save the link URL in a `ClipData`.
-                        ClipData srcAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), linkUrl);
+                        ClipData srcAnchorTypeClipData = ClipData.newPlainText(getString(R.string.url), linkUrl);
 
                         // Set the `ClipData` as the clipboard's primary clip.
                         clipboardManager.setPrimaryClip(srcAnchorTypeClipData);
@@ -1839,7 +2119,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     @Override
                     public boolean onMenuItemClick(MenuItem item) {
                         // Save the email address in a `ClipData`.
-                        ClipData srcEmailTypeClipData = ClipData.newPlainText(getResources().getString(R.string.email_address), linkUrl);
+                        ClipData srcEmailTypeClipData = ClipData.newPlainText(getString(R.string.email_address), linkUrl);
 
                         // Set the `ClipData` as the clipboard's primary clip.
                         clipboardManager.setPrimaryClip(srcEmailTypeClipData);
@@ -1874,7 +2154,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     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));
+                        downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
                         return false;
                     }
                 });
@@ -1884,7 +2164,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     @Override
                     public boolean onMenuItemClick(MenuItem item) {
                         // Save the image URL in a `ClipData`.
-                        ClipData srcImageTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
+                        ClipData srcImageTypeClipData = ClipData.newPlainText(getString(R.string.url), imageUrl);
 
                         // Set the `ClipData` as the clipboard's primary clip.
                         clipboardManager.setPrimaryClip(srcImageTypeClipData);
@@ -1920,7 +2200,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     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));
+                        downloadImageDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
                         return false;
                     }
                 });
@@ -1930,7 +2210,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     @Override
                     public boolean onMenuItemClick(MenuItem item) {
                         // Save the image URL in a `ClipData`.
-                        ClipData srcImageAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
+                        ClipData srcImageAnchorTypeClipData = ClipData.newPlainText(getString(R.string.url), imageUrl);
 
                         // Set the `ClipData` as the clipboard's primary clip.
                         clipboardManager.setPrimaryClip(srcImageAnchorTypeClipData);
@@ -2058,10 +2338,26 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         }
     }
 
+    @Override
+    public void onHttpAuthenticationCancel() {
+        // Cancel the `HttpAuthHandler`.
+        httpAuthHandler.cancel();
+    }
+
+    @Override
+    public void onHttpAuthenticationProceed(AppCompatDialogFragment dialogFragment) {
+        // Get handles for the `EditTexts`.
+        EditText usernameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.http_authentication_username);
+        EditText passwordEditText = (EditText) 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(), getResources().getString(R.string.view_ssl_certificate));
+        viewSslCertificateDialogFragment.show(getFragmentManager(), getString(R.string.view_ssl_certificate));
     }
 
     @Override
@@ -2074,6 +2370,26 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         sslErrorHandler.proceed();
     }
 
+    @Override
+    public void onSslMismatchBack() {
+        if (mainWebView.canGoBack()) {  // There is a back page in the history.
+            // 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) {
         // Set `navigatingHistory` so that the domain settings are applied when the new URL is loaded.
@@ -2092,21 +2408,30 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // 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)) {
+        if (drawerLayout.isDrawerVisible(GravityCompat.START)) {  // The navigation drawer is open.
+            // Close the navigation drawer.
             drawerLayout.closeDrawer(GravityCompat.START);
-        } else {
-            // Load the previous URL if available.
-            if (mainWebView.canGoBack()) {
-                // Set `navigatingHistory` so that the domain settings are applied when the new URL is loaded.
-                navigatingHistory = true;
-
-                // Go back.
-                mainWebView.goBack();
-            } else {
-                // Pass `onBackPressed()` to the system.
-                super.onBackPressed();
+        } 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.
+            // 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();
         }
     }
 
@@ -2153,9 +2478,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         }
 
         loadUrl(formattedUrlString);
-
-        // Hide the keyboard so we can see the webpage.  `0` indicates no additional flags.
-        inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
     }
 
 
@@ -2383,6 +2705,9 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             // Set the new `hostname` as the `currentDomainName`.
             currentDomainName = hostName;
 
+            // Reset `ignorePinnedSslCertificate`.
+            ignorePinnedSslCertificate = false;
+
             // Reset `favoriteIconBitmap` and display it in the `appbar`.
             favoriteIconBitmap = favoriteIconDefaultBitmap;
             favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(favoriteIconBitmap, 64, 64, true));
@@ -2438,10 +2763,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             // Get a handle for the shared preference.  `this` references the current context.
             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
-            // Store the default font size and user agent information.
+            // Store the general preference information.
             String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
             String defaultUserAgentString = sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0");
             String defaultCustomUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
+            nightMode = sharedPreferences.getBoolean("night_mode", false);
 
             if (domainSettingsApplied) {  // The url we are loading has custom domain settings.
                 // Get a cursor for the current host and move it to the first position.
@@ -2449,6 +2775,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 currentHostDomainSettingsCursor.moveToFirst();
 
                 // Get the settings from the cursor.
+                domainSettingsDatabaseId = (currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper._ID)));
                 javaScriptEnabled = (currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT)) == 1);
                 firstPartyCookiesEnabled = (currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES)) == 1);
                 thirdPartyCookiesEnabled = (currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES)) == 1);
@@ -2457,6 +2784,44 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 String userAgentString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT));
                 int fontSize = currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE));
                 displayWebpageImagesInt = currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES));
+                int nightModeInt = currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.NIGHT_MODE));
+                pinnedDomainSslCertificate = (currentHostDomainSettingsCursor.getInt(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.PINNED_SSL_CERTIFICATE)) == 1);
+                pinnedDomainSslIssuedToCNameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_COMMON_NAME));
+                pinnedDomainSslIssuedToONameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATION));
+                pinnedDomainSslIssuedToUNameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_TO_ORGANIZATIONAL_UNIT));
+                pinnedDomainSslIssuedByCNameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_COMMON_NAME));
+                pinnedDomainSslIssuedByONameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATION));
+                pinnedDomainSslIssuedByUNameString = currentHostDomainSettingsCursor.getString(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_ISSUED_BY_ORGANIZATIONAL_UNIT));
+
+                // Set `nightMode` according to `nightModeInt`.  If `nightModeInt` is `DomainsDatabaseHelper.NIGHT_MODE_SYSTEM_DEFAULT` the current setting from `sharedPreferences` will be used.
+                switch (nightModeInt) {
+                    case DomainsDatabaseHelper.NIGHT_MODE_ENABLED:
+                        nightMode = true;
+                        break;
+
+                    case DomainsDatabaseHelper.NIGHT_MODE_DISABLED:
+                        nightMode = false;
+                        break;
+                }
+
+                // Set `javaScriptEnabled` to be `true` if `night_mode` is `true`.
+                if (nightMode) {
+                    javaScriptEnabled = true;
+                }
+
+                // Set the pinned SSL certificate start date to `null` if the saved date `long` is 0.
+                if (currentHostDomainSettingsCursor.getLong(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)) == 0) {
+                    pinnedDomainSslStartDate = null;
+                } else {
+                    pinnedDomainSslStartDate = new Date(currentHostDomainSettingsCursor.getLong(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_START_DATE)));
+                }
+
+                // Set the pinned SSL certificate end date to `null` if the saved date `long` is 0.
+                if (currentHostDomainSettingsCursor.getLong(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)) == 0) {
+                    pinnedDomainSslEndDate = null;
+                } else {
+                    pinnedDomainSslEndDate = new Date(currentHostDomainSettingsCursor.getLong(currentHostDomainSettingsCursor.getColumnIndex(DomainsDatabaseHelper.SSL_END_DATE)));
+                }
 
                 // Close `currentHostDomainSettingsCursor`.
                 currentHostDomainSettingsCursor.close();
@@ -2526,6 +2891,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
                 saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
 
+                // Set `javaScriptEnabled` to be `true` if `night_mode` is `true`.
+                if (nightMode) {
+                    javaScriptEnabled = true;
+                }
+
                 // Apply the default settings.
                 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
                 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
@@ -2533,6 +2903,18 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
                 mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
 
+                // Reset the pinned SSL certificate information.
+                domainSettingsDatabaseId = -1;
+                pinnedDomainSslCertificate = false;
+                pinnedDomainSslIssuedToCNameString = "";
+                pinnedDomainSslIssuedToONameString = "";
+                pinnedDomainSslIssuedToUNameString = "";
+                pinnedDomainSslIssuedByCNameString = "";
+                pinnedDomainSslIssuedByONameString = "";
+                pinnedDomainSslIssuedByUNameString = "";
+                pinnedDomainSslStartDate = null;
+                pinnedDomainSslEndDate = null;
+
                 // Set third-party cookies status if API >= 21.
                 if (Build.VERSION.SDK_INT >= 21) {
                     cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
@@ -2675,4 +3057,55 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             urlTextBox.getText().setSpan(finalGrayColorSpan, endOfDomainName, urlString.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
         }
     }
+
+    private void loadBookmarksFolder() {
+        // Update `bookmarksCursor` with the contents of the bookmarks database for the current folder.
+        Cursor bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(currentBookmarksFolder);
+
+        // Setup a `CursorAdapter`.  `this` specifies the `Context`.  `false` disables `autoRequery`.
+        CursorAdapter bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
+            @Override
+            public View newView(Context context, Cursor cursor, ViewGroup parent) {
+                // Inflate the individual item layout.  `false` does not attach it to the root.
+                return getLayoutInflater().inflate(R.layout.bookmarks_drawer_item_linearlayout, parent, false);
+            }
+
+            @Override
+            public void bindView(View view, Context context, Cursor cursor) {
+                // Get handles for the views.
+                ImageView bookmarkFavoriteIcon = (ImageView) view.findViewById(R.id.bookmark_favorite_icon);
+                TextView bookmarkNameTextView = (TextView) view.findViewById(R.id.bookmark_name);
+
+                // Get the favorite icon byte array from the `Cursor`.
+                byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
+
+                // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
+                Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
+
+                // Display the bitmap in `bookmarkFavoriteIcon`.
+                bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
+
+                // Get the bookmark name from the cursor and display it in `bookmarkNameTextView`.
+                String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
+                bookmarkNameTextView.setText(bookmarkNameString);
+
+                // Make the font bold for folders.
+                if (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {
+                    bookmarkNameTextView.setTypeface(Typeface.DEFAULT_BOLD);
+                } else {  // Reset the font to default for normal bookmarks.
+                    bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
+                }
+            }
+        };
+
+        // Populate the `ListView` with the adapter.
+        bookmarksListView.setAdapter(bookmarksCursorAdapter);
+
+        // Set the bookmarks drawer title.
+        if (currentBookmarksFolder.isEmpty()) {
+            bookmarksTitleTextView.setText(R.string.bookmarks);
+        } else {
+            bookmarksTitleTextView.setText(currentBookmarksFolder);
+        }
+    }
 }