2 * Copyright 2015-2017 Soren Stoutner <soren@stoutner.com>.
4 * Download cookie code contributed 2017 Hendrik Knackstedt. Copyright assigned to Soren Stoutner <soren@stoutner.com>.
6 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
8 * Privacy Browser is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
13 * Privacy Browser is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
22 package com.stoutner.privacybrowser.activities;
24 import android.annotation.SuppressLint;
25 import android.app.DialogFragment;
26 import android.app.DownloadManager;
27 import android.content.BroadcastReceiver;
28 import android.content.ClipData;
29 import android.content.ClipboardManager;
30 import android.content.Context;
31 import android.content.Intent;
32 import android.content.IntentFilter;
33 import android.content.SharedPreferences;
34 import android.content.res.Configuration;
35 import android.graphics.Bitmap;
36 import android.graphics.drawable.BitmapDrawable;
37 import android.graphics.drawable.Drawable;
38 import android.net.Uri;
39 import android.net.http.SslCertificate;
40 import android.net.http.SslError;
41 import android.os.Build;
42 import android.os.Bundle;
43 import android.preference.PreferenceManager;
44 import android.print.PrintDocumentAdapter;
45 import android.print.PrintManager;
46 import android.support.annotation.NonNull;
47 import android.support.design.widget.CoordinatorLayout;
48 import android.support.design.widget.NavigationView;
49 import android.support.design.widget.Snackbar;
50 import android.support.v4.app.ActivityCompat;
51 import android.support.v4.content.ContextCompat;
52 import android.support.v4.view.GravityCompat;
53 import android.support.v4.widget.DrawerLayout;
54 import android.support.v4.widget.SwipeRefreshLayout;
55 import android.support.v7.app.ActionBar;
56 import android.support.v7.app.ActionBarDrawerToggle;
57 import android.support.v7.app.AppCompatActivity;
58 import android.support.v7.app.AppCompatDialogFragment;
59 import android.support.v7.widget.Toolbar;
60 import android.text.Editable;
61 import android.text.TextWatcher;
62 import android.util.Patterns;
63 import android.view.ContextMenu;
64 import android.view.GestureDetector;
65 import android.view.KeyEvent;
66 import android.view.Menu;
67 import android.view.MenuItem;
68 import android.view.MotionEvent;
69 import android.view.View;
70 import android.view.WindowManager;
71 import android.view.inputmethod.InputMethodManager;
72 import android.webkit.CookieManager;
73 import android.webkit.DownloadListener;
74 import android.webkit.SslErrorHandler;
75 import android.webkit.WebBackForwardList;
76 import android.webkit.WebChromeClient;
77 import android.webkit.WebResourceResponse;
78 import android.webkit.WebStorage;
79 import android.webkit.WebView;
80 import android.webkit.WebViewClient;
81 import android.webkit.WebViewDatabase;
82 import android.widget.EditText;
83 import android.widget.FrameLayout;
84 import android.widget.ImageView;
85 import android.widget.LinearLayout;
86 import android.widget.ProgressBar;
87 import android.widget.RelativeLayout;
88 import android.widget.TextView;
90 import com.stoutner.privacybrowser.BannerAd;
91 import com.stoutner.privacybrowser.BuildConfig;
92 import com.stoutner.privacybrowser.R;
93 import com.stoutner.privacybrowser.helpers.OrbotProxyHelper;
94 import com.stoutner.privacybrowser.dialogs.CreateHomeScreenShortcut;
95 import com.stoutner.privacybrowser.dialogs.DownloadFile;
96 import com.stoutner.privacybrowser.dialogs.DownloadImage;
97 import com.stoutner.privacybrowser.dialogs.SslCertificateError;
98 import com.stoutner.privacybrowser.dialogs.UrlHistory;
99 import com.stoutner.privacybrowser.dialogs.ViewSslCertificate;
101 import java.io.BufferedReader;
102 import java.io.ByteArrayInputStream;
103 import java.io.IOException;
104 import java.io.InputStreamReader;
105 import java.io.UnsupportedEncodingException;
106 import java.net.MalformedURLException;
108 import java.net.URLEncoder;
109 import java.util.HashMap;
110 import java.util.HashSet;
111 import java.util.Map;
112 import java.util.Set;
114 // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
115 public class MainWebView extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener,
116 SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener, DownloadImage.DownloadImageListener, UrlHistory.UrlHistoryListener {
118 // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.
119 // It is also used in `onCreate()`, `onOptionsItemSelected()`, `closeFindOnPage()`, and `applySettings()`.
120 public static ActionBar appBar;
122 // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `Bookmarks`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`.
123 // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
124 public static Bitmap favoriteIcon;
126 // `formattedUrlString` is public static so it can be accessed from `Bookmarks`.
127 // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
128 public static String formattedUrlString;
130 // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`. It is also used in `onCreate()`.
131 public static SslCertificate sslCertificate;
133 // `orbotStatus` is public static so it can be accessed from `OrbotProxyHelper`. It is also used in `onCreate()`.
134 public static String orbotStatus;
137 // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
138 private DrawerLayout drawerLayout;
140 // `rootCoordinatorLayout` is used in `onCreate()` and `applySettings()`.
141 private CoordinatorLayout rootCoordinatorLayout;
143 // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`.
144 private WebView mainWebView;
146 // `fullScreenVideoFrameLayout` is used in `onCreate()` and `onConfigurationChanged()`.
147 private FrameLayout fullScreenVideoFrameLayout;
149 // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`.
150 private SwipeRefreshLayout swipeRefreshLayout;
152 // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `onRestart()`.
153 private CookieManager cookieManager;
155 // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`.
156 private final Map<String, String> customHeaders = new HashMap<>();
158 // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`.
159 // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`.
160 private Boolean javaScriptEnabled;
162 // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onDownloadImage()`, `onDownloadFile()`, and `applySettings()`.
163 private boolean firstPartyCookiesEnabled;
165 // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
166 private boolean thirdPartyCookiesEnabled;
168 // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
169 private boolean domStorageEnabled;
171 // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
172 private boolean saveFormDataEnabled;
174 // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`.
175 private boolean swipeToRefreshEnabled;
177 // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`.
178 private String homepage;
180 // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
181 private String javaScriptDisabledSearchURL;
183 // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
184 private String javaScriptEnabledSearchURL;
186 // `adBlockerEnabled` is used in `onCreate()` and `applySettings()`.
187 private boolean adBlockerEnabled;
189 // `fullScreenBrowsingModeEnabled` is used in `onCreate()` and `applySettings()`.
190 private boolean fullScreenBrowsingModeEnabled;
192 // `inFullScreenBrowsingMode` is used in `onCreate()`, `onConfigurationChanged()`, and `applySettings()`.
193 private boolean inFullScreenBrowsingMode;
195 // `hideSystemBarsOnFullscreen` is used in `onCreate()` and `applySettings()`.
196 private boolean hideSystemBarsOnFullscreen;
198 // `translucentNavigationBarOnFullscreen` is used in `onCreate()` and `applySettings()`.
199 private boolean translucentNavigationBarOnFullscreen;
201 // `proxyThroughOrbot` is used in `onCreate()` and `applySettings()`
202 private boolean proxyThroughOrbot;
204 // `pendingUrl` is used in `onCreate()` and `applySettings()`
205 private static String pendingUrl;
207 // `waitingForOrbotData` is used in `onCreate()` and `applySettings()`.
208 private String waitingForOrbotHTMLString;
210 // `findOnPageLinearLayout` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
211 private LinearLayout findOnPageLinearLayout;
213 // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
214 private EditText findOnPageEditText;
216 // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`.
217 private Menu mainMenu;
219 // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
220 private ActionBarDrawerToggle drawerToggle;
222 // `supportAppBar` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
223 private Toolbar supportAppBar;
225 // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
226 private EditText urlTextBox;
228 // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
231 // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
232 private SslErrorHandler sslErrorHandler;
234 // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
235 private InputMethodManager inputMethodManager;
237 // `mainWebViewRelativeLayout` is used in `onCreate()` and `onNavigationItemSelected()`.
238 private RelativeLayout mainWebViewRelativeLayout;
241 // 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.
242 @SuppressLint("SetJavaScriptEnabled")
243 protected void onCreate(Bundle savedInstanceState) {
244 super.onCreate(savedInstanceState);
245 setContentView(R.layout.drawerlayout);
247 // Get a handle for `inputMethodManager`.
248 inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
250 // We need to use the `SupportActionBar` from `android.support.v7.app.ActionBar` until the minimum API is >= 21.
251 supportAppBar = (Toolbar) findViewById(R.id.app_bar);
252 setSupportActionBar(supportAppBar);
253 appBar = getSupportActionBar();
255 // This is needed to get rid of the Android Studio warning that `appBar` might be null.
256 assert appBar != null;
258 // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
259 appBar.setCustomView(R.layout.url_app_bar);
260 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
262 // Set the "go" button on the keyboard to load the URL in urlTextBox.
263 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
264 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
266 public boolean onKey(View v, int keyCode, KeyEvent event) {
267 // If the event is a key-down event on the `enter` button, load the URL.
268 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
269 // Load the URL into the mainWebView and consume the event.
271 loadUrlFromTextBox();
272 } catch (UnsupportedEncodingException e) {
275 // If the enter key was pressed, consume the event.
278 // If any other key was pressed, do not consume the event.
284 // Set `waitingForOrbotHTMLString`.
285 waitingForOrbotHTMLString = "<html><body><br/><center><h1>" + getString(R.string.waiting_for_orbot) + "</h1></center></body></html>";
287 // Initialize `pendingUrl`.
290 // Set the initial Orbot status.
291 orbotStatus = "unknown";
293 // Create an Orbot status `BroadcastReceiver`.
294 BroadcastReceiver orbotStatusBroadcastReceiver = new BroadcastReceiver() {
296 public void onReceive(Context context, Intent intent) {
297 // Store the content of the status message in `orbotStatus`.
298 orbotStatus = intent.getStringExtra("org.torproject.android.intent.extra.STATUS");
300 // If we are waiting on `pendingUrl`, load it now that Orbot is connected.
301 if (orbotStatus.equals("ON") && !pendingUrl.isEmpty()) {
303 // Wait 500 milliseconds, because Orbot isn't really ready yet.
306 } catch (InterruptedException exception) {
310 // Copy `pendingUrl` to `formattedUrlString` and reset `pendingUrl` to be empty.
311 formattedUrlString = pendingUrl;
314 // Load `formattedUrlString
315 mainWebView.loadUrl(formattedUrlString, customHeaders);
320 // Register `orbotStatusBroadcastReceiver` on `this` context.
321 this.registerReceiver(orbotStatusBroadcastReceiver, new IntentFilter("org.torproject.android.intent.action.STATUS"));
323 // Get handles for views that need to be accessed.
324 drawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);
325 rootCoordinatorLayout = (CoordinatorLayout) findViewById(R.id.root_coordinatorlayout);
326 mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.main_webview_relativelayout);
327 mainWebView = (WebView) findViewById(R.id.mainWebView);
328 findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
329 findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext);
330 fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.full_screen_video_framelayout);
332 // Create a double-tap listener to toggle full-screen mode.
333 final GestureDetector gestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() {
334 // Override `onDoubleTap()`. All other events are handled using the default settings.
336 public boolean onDoubleTap(MotionEvent event) {
337 if (fullScreenBrowsingModeEnabled) { // Only process the double-tap if full screen browsing mode is enabled.
338 // Toggle `inFullScreenBrowsingMode`.
339 inFullScreenBrowsingMode = !inFullScreenBrowsingMode;
341 if (inFullScreenBrowsingMode) { // Switch to full screen mode.
342 // Hide the `appBar`.
345 // Hide the `BannerAd` in the free flavor.
346 if (BuildConfig.FLAVOR.contentEquals("free")) {
347 BannerAd.hideAd(adView);
350 // Modify the system bars.
351 if (hideSystemBarsOnFullscreen) { // Hide everything.
352 // Remove the translucent overlays.
353 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
355 // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
356 drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
358 /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
359 * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
360 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
362 rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
364 // Set `rootCoordinatorLayout` to fill the whole screen.
365 rootCoordinatorLayout.setFitsSystemWindows(false);
366 } else { // Hide everything except the status and navigation bars.
367 // Set `rootCoordinatorLayout` to fit under the status and navigation bars.
368 rootCoordinatorLayout.setFitsSystemWindows(false);
370 if (translucentNavigationBarOnFullscreen) { // There is an Android Support Library bug that causes a scrim to print on the right side of the `Drawer Layout` when the navigation bar is displayed on the right of the screen.
371 // Set the navigation bar to be translucent.
372 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
375 } else { // Switch to normal viewing mode.
376 // Show the `appBar`.
379 // Show the `BannerAd` in the free flavor.
380 if (BuildConfig.FLAVOR.contentEquals("free")) {
381 // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
382 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
384 // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
385 adView = findViewById(R.id.adView);
388 // Remove the translucent navigation bar flag if it is set.
389 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
391 // Add the translucent status flag if it is unset. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
392 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
394 // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
395 rootCoordinatorLayout.setSystemUiVisibility(0);
397 // Constrain `rootCoordinatorLayout` inside the status and navigation bars.
398 rootCoordinatorLayout.setFitsSystemWindows(true);
401 // Consume the double-tap.
403 } else { // Do not consume the double-tap because full screen browsing mode is disabled.
409 // Pass all touch events on `mainWebView` through `gestureDetector` to check for double-taps.
410 mainWebView.setOnTouchListener(new View.OnTouchListener() {
412 public boolean onTouch(View v, MotionEvent event) {
413 // Send the `event` to `gestureDetector`.
414 return gestureDetector.onTouchEvent(event);
418 // Update `findOnPageCountTextView`.
419 mainWebView.setFindListener(new WebView.FindListener() {
420 // Get a handle for `findOnPageCountTextView`.
421 final TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview);
424 public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
425 if ((isDoneCounting) && (numberOfMatches == 0)) { // There are no matches.
426 // Set `findOnPageCountTextView` to `0/0`.
427 findOnPageCountTextView.setText(R.string.zero_of_zero);
428 } else if (isDoneCounting) { // There are matches.
429 // `activeMatchOrdinal` is zero-based.
430 int activeMatch = activeMatchOrdinal + 1;
432 // Set `findOnPageCountTextView`.
433 findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches);
438 // Search for the string on the page whenever a character changes in the `findOnPageEditText`.
439 findOnPageEditText.addTextChangedListener(new TextWatcher() {
441 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
446 public void onTextChanged(CharSequence s, int start, int before, int count) {
451 public void afterTextChanged(Editable s) {
452 // Search for the text in `mainWebView`.
453 mainWebView.findAllAsync(findOnPageEditText.getText().toString());
457 // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard.
458 findOnPageEditText.setOnKeyListener(new View.OnKeyListener() {
460 public boolean onKey(View v, int keyCode, KeyEvent event) {
461 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // The `enter` key was pressed.
462 // Hide the soft keyboard. `0` indicates no additional flags.
463 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
465 // Consume the event.
467 } else { // A different key was pressed.
468 // Do not consume the event.
474 // Implement swipe to refresh
475 swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
476 swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
477 swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
479 public void onRefresh() {
480 mainWebView.reload();
484 // `DrawerTitle` identifies the `DrawerLayout` in accessibility mode.
485 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
487 // Listen for touches on the navigation menu.
488 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationview);
489 navigationView.setNavigationItemSelectedListener(this);
491 // Get handles for `navigationMenu` and the back and forward menu items. The menu is zero-based, so items 1, 2, and 3 are the second, third, and fourth entries in the menu.
492 final Menu navigationMenu = navigationView.getMenu();
493 final MenuItem navigationBackMenuItem = navigationMenu.getItem(1);
494 final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
495 final MenuItem navigationHistoryMenuItem = navigationMenu.getItem(3);
497 // The `DrawerListener` allows us to update the Navigation Menu.
498 drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
500 public void onDrawerSlide(View drawerView, float slideOffset) {
504 public void onDrawerOpened(View drawerView) {
508 public void onDrawerClosed(View drawerView) {
512 public void onDrawerStateChanged(int newState) {
513 // Update the `Back`, `Forward`, and `History` menu items every time the drawer opens.
514 navigationBackMenuItem.setEnabled(mainWebView.canGoBack());
515 navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
516 navigationHistoryMenuItem.setEnabled((mainWebView.canGoBack() || mainWebView.canGoForward()));
518 // Hide the keyboard so we can see the navigation menu. `0` indicates no additional flags.
519 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
523 // drawerToggle creates the hamburger icon at the start of the AppBar.
524 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation_drawer, R.string.close_navigation_drawer);
526 // Initialize `adServerSet`.
527 final Set<String> adServersSet = new HashSet<>();
529 // Load the list of ad servers into memory.
531 // Load `pgl.yoyo.org_adservers.txt` into a `BufferedReader`.
532 BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(getAssets().open("pgl.yoyo.org_adservers.txt")));
534 // Create a string for storing each ad server.
537 // Populate `adServersSet`.
538 while ((adServer = bufferedReader.readLine()) != null) {
539 adServersSet.add(adServer);
542 // Close `bufferedReader`.
543 bufferedReader.close();
544 } catch (IOException ioException) {
545 // We're pretty sure the asset exists, so we don't need to worry about the `IOException` ever being thrown.
548 mainWebView.setWebViewClient(new WebViewClient() {
549 // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
550 // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
551 @SuppressWarnings("deprecation")
553 public boolean shouldOverrideUrlLoading(WebView view, String url) {
554 // Use an external email program if the link begins with `mailto:`.
555 if (url.startsWith("mailto:")) {
556 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
557 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
559 // Parse the url and set it as the data for the `Intent`.
560 emailIntent.setData(Uri.parse(url));
562 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
563 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
566 startActivity(emailIntent);
568 } else { // Load the URL in Privacy Browser.
569 mainWebView.loadUrl(url, customHeaders);
574 // Block ads. We have to use the deprecated `shouldInterceptRequest` until minimum API >= 21.
575 @SuppressWarnings("deprecation")
577 public WebResourceResponse shouldInterceptRequest(WebView view, String url){
578 if (adBlockerEnabled) { // Block ads.
579 // Extract the host from `url`.
580 Uri requestUri = Uri.parse(url);
581 String requestHost = requestUri.getHost();
583 // Create a variable to track if this is an ad server.
584 boolean requestHostIsAdServer = false;
586 // Check all the subdomains of `requestHost` if it is not `null`.
587 if (requestHost != null) {
588 while (requestHost.contains(".")) {
589 if (adServersSet.contains(requestHost)) {
590 requestHostIsAdServer = true;
593 // Strip out the lowest subdomain of `requestHost`.
594 requestHost = requestHost.substring(requestHost.indexOf(".") + 1);
598 if (requestHostIsAdServer) { // It is an ad server.
599 // Return an empty `WebResourceResponse`.
600 return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
601 } else { // It is not an ad server.
602 // `return null` loads the requested resource.
605 } else { // Ad blocking is disabled.
606 // `return null` loads the requested resource.
611 // Update the URL in urlTextBox when the page starts to load.
613 public void onPageStarted(WebView view, String url, Bitmap favicon) {
614 // Check to see if we are waiting on Orbot.
615 if (pendingUrl.isEmpty()) { // We are not waiting on Orbot, so we need to process the URL.
616 // We need to update `formattedUrlString` at the beginning of the load, so that if the user toggles JavaScript during the load the new website is reloaded.
617 formattedUrlString = url;
619 // Display the loading URL is the URL text box.
620 urlTextBox.setText(url);
624 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
626 public void onPageFinished(WebView view, String url) {
627 // Check to see if we are waiting on Orbot.
628 if (pendingUrl.isEmpty()) { // we are not waiting on Orbot, so we need to process the URL.
629 formattedUrlString = url;
631 // Only update urlTextBox if the user is not typing in it.
632 if (!urlTextBox.hasFocus()) {
633 urlTextBox.setText(formattedUrlString);
636 // Store the SSL certificate so it can be accessed from `ViewSslCertificate`.
637 sslCertificate = mainWebView.getCertificate();
641 // Handle SSL Certificate errors.
643 public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
644 // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
645 sslErrorHandler = handler;
647 // Display the SSL error `AlertDialog`.
648 AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
649 sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
653 mainWebView.setWebChromeClient(new WebChromeClient() {
654 // Update the progress bar when a page is loading.
656 public void onProgressChanged(WebView view, int progress) {
657 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
658 progressBar.setProgress(progress);
659 if (progress < 100) {
660 progressBar.setVisibility(View.VISIBLE);
662 progressBar.setVisibility(View.GONE);
664 //Stop the `SwipeToRefresh` indicator if it is running
665 swipeRefreshLayout.setRefreshing(false);
669 // Set the favorite icon when it changes.
671 public void onReceivedIcon(WebView view, Bitmap icon) {
672 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
675 // Place the favorite icon in the appBar.
676 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
677 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
680 // Enter full screen video
682 public void onShowCustomView(View view, CustomViewCallback callback) {
683 // Pause the ad if this is the free flavor.
684 if (BuildConfig.FLAVOR.contentEquals("free")) {
685 BannerAd.pauseAd(adView);
688 // Remove the translucent overlays.
689 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
691 // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
692 drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
694 /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
695 * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
696 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
698 rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
700 // Set `rootCoordinatorLayout` to fill the entire screen.
701 rootCoordinatorLayout.setFitsSystemWindows(false);
703 // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
704 fullScreenVideoFrameLayout.addView(view);
705 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
708 // Exit full screen video
709 public void onHideCustomView() {
710 // Hide `fullScreenVideoFrameLayout`.
711 fullScreenVideoFrameLayout.removeAllViews();
712 fullScreenVideoFrameLayout.setVisibility(View.GONE);
714 // Add the translucent status flag. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
715 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
717 // Set `rootCoordinatorLayout` to fit inside the status and navigation bars. This also clears the `SYSTEM_UI` flags.
718 rootCoordinatorLayout.setFitsSystemWindows(true);
720 // Show the ad if this is the free flavor.
721 if (BuildConfig.FLAVOR.contentEquals("free")) {
722 // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
723 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
725 // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
726 adView = findViewById(R.id.adView);
731 // Register `mainWebView` for a context menu. This is used to see link targets and download images.
732 registerForContextMenu(mainWebView);
734 // Allow the downloading of files.
735 mainWebView.setDownloadListener(new DownloadListener() {
737 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
738 // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`.
739 AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength);
740 downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
744 // Allow pinch to zoom.
745 mainWebView.getSettings().setBuiltInZoomControls(true);
747 // Hide zoom controls.
748 mainWebView.getSettings().setDisplayZoomControls(false);
750 // Initialize cookieManager.
751 cookieManager = CookieManager.getInstance();
753 // Replace the header that `WebView` creates for `X-Requested-With` with a null value. The default value is the application ID (com.stoutner.privacybrowser.standard).
754 customHeaders.put("X-Requested-With", "");
756 // Initialize the default preference values the first time the program is run. `this` is the context. `false` keeps this command from resetting any current preferences back to default.
757 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
759 // Get the intent information that started the app.
760 final Intent intent = getIntent();
762 if (intent.getData() != null) {
763 // Get the intent data and convert it to a string.
764 final Uri intentUriData = intent.getData();
765 formattedUrlString = intentUriData.toString();
768 // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
769 inFullScreenBrowsingMode = false;
771 // Initialize AdView for the free flavor.
772 adView = findViewById(R.id.adView);
774 // Apply the settings from the shared preferences.
777 // Load `formattedUrlString` if we are not proxying through Orbot and waiting for Orbot to connect.
778 if (!(proxyThroughOrbot && !orbotStatus.equals("ON"))) {
779 mainWebView.loadUrl(formattedUrlString, customHeaders);
782 // If the favorite icon is null, load the default.
783 if (favoriteIcon == null) {
784 // We have to use `ContextCompat` until API >= 21.
785 Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
786 BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
787 favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
793 protected void onNewIntent(Intent intent) {
794 // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
797 if (intent.getData() != null) {
798 // Get the intent data and convert it to a string.
799 final Uri intentUriData = intent.getData();
800 formattedUrlString = intentUriData.toString();
803 // Close the navigation drawer if it is open.
804 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
805 drawerLayout.closeDrawer(GravityCompat.START);
809 mainWebView.loadUrl(formattedUrlString, customHeaders);
811 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
812 mainWebView.requestFocus();
816 public boolean onCreateOptionsMenu(Menu menu) {
817 // Inflate the menu; this adds items to the action bar if it is present.
818 getMenuInflater().inflate(R.menu.webview_options_menu, menu);
820 // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
823 // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step.
824 updatePrivacyIcons(false);
826 // Get handles for the menu items.
827 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
828 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
829 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
830 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
832 // Only display third-Party Cookies if SDK >= 21
833 toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
835 // Get the shared preference values. `this` references the current context.
836 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
838 // Set the status of the additional app bar icons. The default is `false`.
839 if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
840 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
841 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
842 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
843 } else { //Do not display the additional icons.
844 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
845 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
846 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
853 public boolean onPrepareOptionsMenu(Menu menu) {
854 // Get handles for the menu items.
855 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
856 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
857 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
858 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
859 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
860 MenuItem clearFormData = menu.findItem(R.id.clearFormData);
861 MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
863 // Set the status of the menu item checkboxes.
864 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
865 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
866 toggleDomStorage.setChecked(domStorageEnabled);
867 toggleSaveFormData.setChecked(saveFormDataEnabled);
869 // Enable third-party cookies if first-party cookies are enabled.
870 toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
872 // Enable DOM Storage if JavaScript is enabled.
873 toggleDomStorage.setEnabled(javaScriptEnabled);
875 // Enable Clear Cookies if there are any.
876 clearCookies.setEnabled(cookieManager.hasCookies());
878 // Enable Clear Form Data is there is any.
879 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
880 clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
882 // Only show `Refresh` if `swipeToRefresh` is disabled.
883 refreshMenuItem.setVisible(!swipeToRefreshEnabled);
885 // Initialize font size variables.
886 int fontSize = mainWebView.getSettings().getTextZoom();
887 String fontSizeTitle;
888 MenuItem selectedFontSizeMenuItem;
890 // Prepare the font size title and current size menu item.
893 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
894 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
898 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
899 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
903 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
904 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
908 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
909 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
913 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
914 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
918 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
919 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
923 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
924 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
928 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
929 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
933 // Set the font size title and select the current size menu item.
934 MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
935 fontSizeMenuItem.setTitle(fontSizeTitle);
936 selectedFontSizeMenuItem.setChecked(true);
938 // Run all the other default commands.
939 super.onPrepareOptionsMenu(menu);
941 // `return true` displays the menu.
946 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
947 @SuppressLint("SetJavaScriptEnabled")
948 // removeAllCookies is deprecated, but it is required for API < 21.
949 @SuppressWarnings("deprecation")
950 public boolean onOptionsItemSelected(MenuItem menuItem) {
951 int menuItemId = menuItem.getItemId();
953 // Set the commands that relate to the menu entries.
954 switch (menuItemId) {
955 case R.id.toggleJavaScript:
956 // Switch the status of javaScriptEnabled.
957 javaScriptEnabled = !javaScriptEnabled;
959 // Apply the new JavaScript status.
960 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
962 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
963 updatePrivacyIcons(true);
965 // Display a `Snackbar`.
966 if (javaScriptEnabled) { // JavaScrip is enabled.
967 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
968 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled.
969 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
970 } else { // Privacy mode.
971 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
974 // Reload the WebView.
975 mainWebView.reload();
978 case R.id.toggleFirstPartyCookies:
979 // Switch the status of firstPartyCookiesEnabled.
980 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
982 // Update the menu checkbox.
983 menuItem.setChecked(firstPartyCookiesEnabled);
985 // Apply the new cookie status.
986 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
988 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
989 updatePrivacyIcons(true);
991 // Display a `Snackbar`.
992 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
993 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
994 } else if (javaScriptEnabled){ // JavaScript is still enabled.
995 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
996 } else { // Privacy mode.
997 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
1000 // Reload the WebView.
1001 mainWebView.reload();
1004 case R.id.toggleThirdPartyCookies:
1005 if (Build.VERSION.SDK_INT >= 21) {
1006 // Switch the status of thirdPartyCookiesEnabled.
1007 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
1009 // Update the menu checkbox.
1010 menuItem.setChecked(thirdPartyCookiesEnabled);
1012 // Apply the new cookie status.
1013 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
1015 // Display a `Snackbar`.
1016 if (thirdPartyCookiesEnabled) {
1017 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
1019 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
1022 // Reload the WebView.
1023 mainWebView.reload();
1024 } // Else do nothing because SDK < 21.
1027 case R.id.toggleDomStorage:
1028 // Switch the status of domStorageEnabled.
1029 domStorageEnabled = !domStorageEnabled;
1031 // Update the menu checkbox.
1032 menuItem.setChecked(domStorageEnabled);
1034 // Apply the new DOM Storage status.
1035 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
1037 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1038 updatePrivacyIcons(true);
1040 // Display a `Snackbar`.
1041 if (domStorageEnabled) {
1042 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
1044 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
1047 // Reload the WebView.
1048 mainWebView.reload();
1051 case R.id.toggleSaveFormData:
1052 // Switch the status of saveFormDataEnabled.
1053 saveFormDataEnabled = !saveFormDataEnabled;
1055 // Update the menu checkbox.
1056 menuItem.setChecked(saveFormDataEnabled);
1058 // Apply the new form data status.
1059 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
1061 // Display a `Snackbar`.
1062 if (saveFormDataEnabled) {
1063 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
1065 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
1068 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1069 updatePrivacyIcons(true);
1071 // Reload the WebView.
1072 mainWebView.reload();
1075 case R.id.clearCookies:
1076 if (Build.VERSION.SDK_INT < 21) {
1077 cookieManager.removeAllCookie();
1079 cookieManager.removeAllCookies(null);
1081 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
1084 case R.id.clearDomStorage:
1085 WebStorage webStorage = WebStorage.getInstance();
1086 webStorage.deleteAllData();
1087 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
1090 case R.id.clearFormData:
1091 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
1092 mainWebViewDatabase.clearFormData();
1093 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_deleted, Snackbar.LENGTH_SHORT).show();
1096 case R.id.fontSizeFiftyPercent:
1097 mainWebView.getSettings().setTextZoom(50);
1100 case R.id.fontSizeSeventyFivePercent:
1101 mainWebView.getSettings().setTextZoom(75);
1104 case R.id.fontSizeOneHundredPercent:
1105 mainWebView.getSettings().setTextZoom(100);
1108 case R.id.fontSizeOneHundredTwentyFivePercent:
1109 mainWebView.getSettings().setTextZoom(125);
1112 case R.id.fontSizeOneHundredFiftyPercent:
1113 mainWebView.getSettings().setTextZoom(150);
1116 case R.id.fontSizeOneHundredSeventyFivePercent:
1117 mainWebView.getSettings().setTextZoom(175);
1120 case R.id.fontSizeTwoHundredPercent:
1121 mainWebView.getSettings().setTextZoom(200);
1124 case R.id.find_on_page:
1125 // Hide the URL app bar.
1126 supportAppBar.setVisibility(View.GONE);
1128 // Show the Find on Page `RelativeLayout`.
1129 findOnPageLinearLayout.setVisibility(View.VISIBLE);
1131 // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android.
1132 // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
1133 findOnPageEditText.postDelayed(new Runnable()
1138 // Set the focus on `findOnPageEditText`.
1139 findOnPageEditText.requestFocus();
1141 // Display the keyboard.
1142 inputMethodManager.showSoftInput(findOnPageEditText, 0);
1148 Intent shareIntent = new Intent();
1149 shareIntent.setAction(Intent.ACTION_SEND);
1150 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
1151 shareIntent.setType("text/plain");
1152 startActivity(Intent.createChooser(shareIntent, "Share URL"));
1155 case R.id.addToHomescreen:
1156 // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `R.string.create_shortcut`.
1157 AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
1158 createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
1160 //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below.
1164 // Get a `PrintManager` instance.
1165 PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
1167 // Convert `mainWebView` to `printDocumentAdapter`.
1168 PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
1170 // Print the document. The print attributes are `null`.
1171 printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
1175 mainWebView.reload();
1179 // Don't consume the event.
1180 return super.onOptionsItemSelected(menuItem);
1184 // removeAllCookies is deprecated, but it is required for API < 21.
1185 @SuppressWarnings("deprecation")
1187 public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
1188 int menuItemId = menuItem.getItemId();
1190 switch (menuItemId) {
1192 mainWebView.loadUrl(homepage, customHeaders);
1196 if (mainWebView.canGoBack()) {
1197 mainWebView.goBack();
1202 if (mainWebView.canGoForward()) {
1203 mainWebView.goForward();
1208 // Gte the `WebBackForwardList`.
1209 WebBackForwardList webBackForwardList = mainWebView.copyBackForwardList();
1211 // Show the `UrlHistory` `AlertDialog` and name this instance `R.string.history`. `this` is the `Context`.
1212 AppCompatDialogFragment urlHistoryDialogFragment = UrlHistory.loadBackForwardList(this, webBackForwardList);
1213 urlHistoryDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.history));
1216 case R.id.bookmarks:
1217 // Launch Bookmarks.
1218 Intent bookmarksIntent = new Intent(this, Bookmarks.class);
1219 startActivity(bookmarksIntent);
1222 case R.id.downloads:
1223 // Launch the system Download Manager.
1224 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
1226 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
1227 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1229 startActivity(downloadManagerIntent);
1233 // Launch `Settings`.
1234 Intent settingsIntent = new Intent(this, Settings.class);
1235 startActivity(settingsIntent);
1239 // Launch `DomainsList`.
1240 Intent domainsIntent = new Intent(this, DomainsList.class);
1241 startActivity(domainsIntent);
1246 Intent guideIntent = new Intent(this, Guide.class);
1247 startActivity(guideIntent);
1252 Intent aboutIntent = new Intent(this, About.class);
1253 startActivity(aboutIntent);
1256 case R.id.clearAndExit:
1257 // Clear cookies. The commands changed slightly in API 21.
1258 if (Build.VERSION.SDK_INT >= 21) {
1259 cookieManager.removeAllCookies(null);
1261 cookieManager.removeAllCookie();
1264 // Clear DOM storage.
1265 WebStorage domStorage = WebStorage.getInstance();
1266 domStorage.deleteAllData();
1269 WebViewDatabase webViewDatabase = WebViewDatabase.getInstance(this);
1270 webViewDatabase.clearFormData();
1272 // Clear cache. The argument of "true" includes disk files.
1273 mainWebView.clearCache(true);
1275 // Clear the back/forward history.
1276 mainWebView.clearHistory();
1278 // Clear any SSL certificate preferences.
1279 mainWebView.clearSslPreferences();
1281 // Clear `formattedUrlString`.
1282 formattedUrlString = null;
1284 // Clear `customHeaders`.
1285 customHeaders.clear();
1287 // Detach all views from `mainWebViewRelativeLayout`.
1288 mainWebViewRelativeLayout.removeAllViews();
1290 // Destroy the internal state of `mainWebView`.
1291 mainWebView.destroy();
1293 // Manually delete the `app_webview` folder, which contains an additional `WebView` cache. See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
1294 Runtime runtime = Runtime.getRuntime();
1295 String dataDirString = getApplicationInfo().dataDir; // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
1297 runtime.exec("rm -rf " + dataDirString + "/app_webview");
1298 } catch (IOException e) {
1299 // Do nothing if the files do not exist.
1302 // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
1303 if (Build.VERSION.SDK_INT >= 21) {
1304 finishAndRemoveTask();
1309 // Remove the terminated program from RAM. The status code is `0`.
1317 // Close the navigation drawer.
1318 drawerLayout.closeDrawer(GravityCompat.START);
1323 public void onPostCreate(Bundle savedInstanceState) {
1324 super.onPostCreate(savedInstanceState);
1326 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
1327 drawerToggle.syncState();
1331 public void onConfigurationChanged(Configuration newConfig) {
1332 super.onConfigurationChanged(newConfig);
1334 // Reload the ad for the free flavor if we are not in full screen mode.
1335 if (BuildConfig.FLAVOR.contentEquals("free") && !inFullScreenBrowsingMode) {
1337 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
1339 // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
1340 adView = findViewById(R.id.adView);
1343 // `invalidateOptionsMenu` should recalculate the number of action buttons from the menu to display on the app bar, but it doesn't because of the this bug: https://code.google.com/p/android/issues/detail?id=20493#c8
1344 // ActivityCompat.invalidateOptionsMenu(this);
1348 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
1349 // Store the `HitTestResult`.
1350 final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
1353 final String imageUrl;
1354 final String linkUrl;
1356 // Get a handle for the `ClipboardManager`.
1357 final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
1359 switch (hitTestResult.getType()) {
1360 // `SRC_ANCHOR_TYPE` is a link.
1361 case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1362 // Get the target URL.
1363 linkUrl = hitTestResult.getExtra();
1365 // Set the target URL as the title of the `ContextMenu`.
1366 menu.setHeaderTitle(linkUrl);
1368 // Add a `Load URL` entry.
1369 menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1371 public boolean onMenuItemClick(MenuItem item) {
1372 mainWebView.loadUrl(linkUrl, customHeaders);
1377 // Add a `Copy URL` entry.
1378 menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1380 public boolean onMenuItemClick(MenuItem item) {
1381 // Save the link URL in a `ClipData`.
1382 ClipData srcAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), linkUrl);
1384 // Set the `ClipData` as the clipboard's primary clip.
1385 clipboardManager.setPrimaryClip(srcAnchorTypeClipData);
1390 // Add a `Cancel` entry, which by default closes the `ContextMenu`.
1391 menu.add(R.string.cancel);
1394 case WebView.HitTestResult.EMAIL_TYPE:
1395 // Get the target URL.
1396 linkUrl = hitTestResult.getExtra();
1398 // Set the target URL as the title of the `ContextMenu`.
1399 menu.setHeaderTitle(linkUrl);
1401 // Add a `Write Email` entry.
1402 menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1404 public boolean onMenuItemClick(MenuItem item) {
1405 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
1406 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
1408 // Parse the url and set it as the data for the `Intent`.
1409 emailIntent.setData(Uri.parse("mailto:" + linkUrl));
1411 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
1412 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1415 startActivity(emailIntent);
1420 // Add a `Copy Email Address` entry.
1421 menu.add(R.string.copy_email_address).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1423 public boolean onMenuItemClick(MenuItem item) {
1424 // Save the email address in a `ClipData`.
1425 ClipData srcEmailTypeClipData = ClipData.newPlainText(getResources().getString(R.string.email_address), linkUrl);
1427 // Set the `ClipData` as the clipboard's primary clip.
1428 clipboardManager.setPrimaryClip(srcEmailTypeClipData);
1433 // Add a `Cancel` entry, which by default closes the `ContextMenu`.
1434 menu.add(R.string.cancel);
1437 // `IMAGE_TYPE` is an image.
1438 case WebView.HitTestResult.IMAGE_TYPE:
1439 // Get the image URL.
1440 imageUrl = hitTestResult.getExtra();
1442 // Set the image URL as the title of the `ContextMenu`.
1443 menu.setHeaderTitle(imageUrl);
1445 // Add a `View Image` entry.
1446 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1448 public boolean onMenuItemClick(MenuItem item) {
1449 mainWebView.loadUrl(imageUrl, customHeaders);
1454 // Add a `Download Image` entry.
1455 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1457 public boolean onMenuItemClick(MenuItem item) {
1458 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1459 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1460 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1465 // Add a `Copy URL` entry.
1466 menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1468 public boolean onMenuItemClick(MenuItem item) {
1469 // Save the image URL in a `ClipData`.
1470 ClipData srcImageTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
1472 // Set the `ClipData` as the clipboard's primary clip.
1473 clipboardManager.setPrimaryClip(srcImageTypeClipData);
1478 // Add a `Cancel` entry, which by default closes the `ContextMenu`.
1479 menu.add(R.string.cancel);
1483 // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
1484 case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1485 // Get the image URL.
1486 imageUrl = hitTestResult.getExtra();
1488 // Set the image URL as the title of the `ContextMenu`.
1489 menu.setHeaderTitle(imageUrl);
1491 // Add a `View Image` entry.
1492 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1494 public boolean onMenuItemClick(MenuItem item) {
1495 mainWebView.loadUrl(imageUrl, customHeaders);
1500 // Add a `Download Image` entry.
1501 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1503 public boolean onMenuItemClick(MenuItem item) {
1504 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1505 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1506 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1511 // Add a `Copy URL` entry.
1512 menu.add(R.string.copy_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1514 public boolean onMenuItemClick(MenuItem item) {
1515 // Save the image URL in a `ClipData`.
1516 ClipData srcImageAnchorTypeClipData = ClipData.newPlainText(getResources().getString(R.string.url), imageUrl);
1518 // Set the `ClipData` as the clipboard's primary clip.
1519 clipboardManager.setPrimaryClip(srcImageAnchorTypeClipData);
1524 // Add a `Cancel` entry, which by default closes the `ContextMenu`.
1525 menu.add(R.string.cancel);
1531 public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
1532 // Get shortcutNameEditText from the alert dialog.
1533 EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
1535 // Create the bookmark shortcut based on formattedUrlString.
1536 Intent bookmarkShortcut = new Intent();
1537 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
1538 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
1540 // Place the bookmark shortcut on the home screen.
1541 Intent placeBookmarkShortcut = new Intent();
1542 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
1543 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
1544 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
1545 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
1546 sendBroadcast(placeBookmarkShortcut);
1550 public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
1551 // Download the image if it has an HTTP or HTTPS URI.
1552 if (imageUrl.startsWith("http")) {
1553 // Get a handle for the system `DOWNLOAD_SERVICE`.
1554 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1556 // Parse `imageUrl`.
1557 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
1559 // Pass cookies to download manager if cookies are enabled. This is required to download images from websites that require a login.
1560 if (firstPartyCookiesEnabled) {
1561 // Get the cookies for `imageUrl`.
1562 String cookies = cookieManager.getCookie(imageUrl);
1564 // Add the cookies to `downloadRequest`. In the HTTP request header, cookies are named `Cookie`.
1565 downloadRequest.addRequestHeader("Cookie", cookies);
1568 // Get the file name from `dialogFragment`.
1569 EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
1570 String imageName = downloadImageNameEditText.getText().toString();
1572 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1573 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
1574 downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
1575 } else { // Only set the title using `imageName`.
1576 downloadRequest.setTitle(imageName);
1579 // Allow `MediaScanner` to index the download if it is a media file.
1580 downloadRequest.allowScanningByMediaScanner();
1582 // Add the URL as the description for the download.
1583 downloadRequest.setDescription(imageUrl);
1585 // Show the download notification after the download is completed.
1586 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1588 // Initiate the download.
1589 downloadManager.enqueue(downloadRequest);
1590 } else { // The image is not an HTTP or HTTPS URI.
1591 Snackbar.make(mainWebView, R.string.cannot_download_image, Snackbar.LENGTH_INDEFINITE).show();
1596 public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
1597 // Download the file if it has an HTTP or HTTPS URI.
1598 if (downloadUrl.startsWith("http")) {
1600 // Get a handle for the system `DOWNLOAD_SERVICE`.
1601 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1603 // Parse `downloadUrl`.
1604 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
1606 // Pass cookies to download manager if cookies are enabled. This is required to download files from websites that require a login.
1607 if (firstPartyCookiesEnabled) {
1608 // Get the cookies for `downloadUrl`.
1609 String cookies = cookieManager.getCookie(downloadUrl);
1611 // Add the cookies to `downloadRequest`. In the HTTP request header, cookies are named `Cookie`.
1612 downloadRequest.addRequestHeader("Cookie", cookies);
1615 // Get the file name from `dialogFragment`.
1616 EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
1617 String fileName = downloadFileNameEditText.getText().toString();
1619 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1620 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download location to `/sdcard/Android/data/com.stoutner.privacybrowser.standard/files` named `fileName`.
1621 downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
1622 } else { // Only set the title using `fileName`.
1623 downloadRequest.setTitle(fileName);
1626 // Allow `MediaScanner` to index the download if it is a media file.
1627 downloadRequest.allowScanningByMediaScanner();
1629 // Add the URL as the description for the download.
1630 downloadRequest.setDescription(downloadUrl);
1632 // Show the download notification after the download is completed.
1633 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1635 // Initiate the download.
1636 downloadManager.enqueue(downloadRequest);
1637 } else { // The download is not an HTTP or HTTPS URI.
1638 Snackbar.make(mainWebView, R.string.cannot_download_file, Snackbar.LENGTH_INDEFINITE).show();
1642 public void viewSslCertificate(View view) {
1643 // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
1644 DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
1645 viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
1649 public void onSslErrorCancel() {
1650 sslErrorHandler.cancel();
1654 public void onSslErrorProceed() {
1655 sslErrorHandler.proceed();
1659 public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) {
1660 // Load the history entry.
1661 mainWebView.goBackOrForward(moveBackOrForwardSteps);
1665 public void onClearHistory() {
1666 // Clear the history.
1667 mainWebView.clearHistory();
1670 // Override `onBackPressed` to handle the navigation drawer and `mainWebView`.
1672 public void onBackPressed() {
1673 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
1674 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
1675 drawerLayout.closeDrawer(GravityCompat.START);
1677 // Load the previous URL if available.
1678 if (mainWebView.canGoBack()) {
1679 mainWebView.goBack();
1681 // Pass `onBackPressed()` to the system.
1682 super.onBackPressed();
1688 public void onPause() {
1689 // Pause `mainWebView`.
1690 mainWebView.onPause();
1692 // Stop all JavaScript.
1693 mainWebView.pauseTimers();
1695 // Pause the adView or it will continue to consume resources in the background on the free flavor.
1696 if (BuildConfig.FLAVOR.contentEquals("free")) {
1697 BannerAd.pauseAd(adView);
1704 public void onResume() {
1707 // Resume JavaScript (if enabled).
1708 mainWebView.resumeTimers();
1710 // Resume `mainWebView`.
1711 mainWebView.onResume();
1713 // Resume the adView for the free flavor.
1714 if (BuildConfig.FLAVOR.contentEquals("free")) {
1715 BannerAd.resumeAd(adView);
1720 public void onRestart() {
1723 // Apply the settings from shared preferences, which might have been changed in `Settings`.
1726 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1727 updatePrivacyIcons(true);
1731 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
1732 // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string.
1733 String unformattedUrlString = urlTextBox.getText().toString().trim();
1735 URL unformattedUrl = null;
1736 Uri.Builder formattedUri = new Uri.Builder();
1738 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
1739 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
1740 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
1741 if (!unformattedUrlString.startsWith("http")) {
1742 unformattedUrlString = "http://" + unformattedUrlString;
1745 // 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.
1747 unformattedUrl = new URL(unformattedUrlString);
1748 } catch (MalformedURLException e) {
1749 e.printStackTrace();
1752 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
1753 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
1754 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
1755 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
1756 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
1757 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
1759 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
1760 formattedUrlString = formattedUri.build().toString();
1762 // Sanitize the search input and convert it to a DuckDuckGo search.
1763 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
1765 // Use the correct search URL.
1766 if (javaScriptEnabled) { // JavaScript is enabled.
1767 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
1768 } else { // JavaScript is disabled.
1769 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
1773 mainWebView.loadUrl(formattedUrlString, customHeaders);
1775 // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
1776 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1779 public void findPreviousOnPage(View view) {
1780 // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards.
1781 mainWebView.findNext(false);
1784 public void findNextOnPage(View view) {
1785 // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
1786 mainWebView.findNext(true);
1789 public void closeFindOnPage(View view) {
1790 // Delete the contents of `find_on_page_edittext`.
1791 findOnPageEditText.setText(null);
1793 // Clear the highlighted phrases.
1794 mainWebView.clearMatches();
1796 // Hide the Find on Page `RelativeLayout`.
1797 findOnPageLinearLayout.setVisibility(View.GONE);
1799 // Show the URL app bar.
1800 supportAppBar.setVisibility(View.VISIBLE);
1802 // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
1803 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1806 private void applySettings() {
1807 // Get the shared preference values. `this` references the current context.
1808 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
1810 // Store the values from `sharedPreferences` in variables.
1811 String userAgentString = sharedPreferences.getString("user_agent", "PrivacyBrowser/1.0");
1812 String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
1813 String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
1814 String javaScriptDisabledSearchCustomURLString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
1815 String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
1816 String javaScriptEnabledSearchCustomURLString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
1817 String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
1818 String torHomepageString = sharedPreferences.getString("tor_homepage", "https://3g2upl4pq6kufc4m.onion");
1819 String torJavaScriptDisabledSearchString = sharedPreferences.getString("tor_javascript_disabled_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
1820 String torJavaScriptDisabledSearchCustomURLString = sharedPreferences.getString("tor_javascript_disabled_search_custom_url", "");
1821 String torJavaScriptEnabledSearchString = sharedPreferences.getString("tor_javascript_enabled_search", "https://3g2upl4pq6kufc4m.onion/?q=");
1822 String torJavaScriptEnabledSearchCustomURLString = sharedPreferences.getString("tor_javascript_enabled_search_custom_url", "");
1823 String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
1824 swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
1825 adBlockerEnabled = sharedPreferences.getBoolean("block_ads", true);
1826 boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", false);
1827 proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
1828 fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("enable_full_screen_browsing_mode", false);
1829 hideSystemBarsOnFullscreen = sharedPreferences.getBoolean("hide_system_bars", false);
1830 translucentNavigationBarOnFullscreen = sharedPreferences.getBoolean("translucent_navigation_bar", true);
1832 // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
1833 if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting.
1834 // Get the values from `sharedPreferences`.
1835 javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
1836 firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
1837 thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
1838 domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
1839 saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
1841 // Apply the default settings.
1842 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
1843 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
1844 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
1845 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
1846 mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
1848 // Set third-party cookies status if API >= 21.
1849 if (Build.VERSION.SDK_INT >= 21) {
1850 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
1854 // Set the homepage, search, and proxy options.
1855 if (proxyThroughOrbot) { // Set the Tor options.
1856 // Set `torHomepageString` as `homepage`.
1857 homepage = torHomepageString;
1859 // If formattedUrlString is null assign the homepage to it.
1860 if (formattedUrlString == null) {
1861 formattedUrlString = homepage;
1864 // Set JavaScript disabled search.
1865 if (torJavaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1866 javaScriptDisabledSearchURL = torJavaScriptDisabledSearchCustomURLString;
1867 } else { // Use the string from the pre-built list.
1868 javaScriptDisabledSearchURL = torJavaScriptDisabledSearchString;
1871 // Set JavaScript enabled search.
1872 if (torJavaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1873 javaScriptEnabledSearchURL = torJavaScriptEnabledSearchCustomURLString;
1874 } else { // Use the string from the pre-built list.
1875 javaScriptEnabledSearchURL = torJavaScriptEnabledSearchString;
1878 // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed.
1879 OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
1881 // Display a message to the user if we are waiting on Orbot.
1882 if (!orbotStatus.equals("ON")) {
1883 // Save `formattedUrlString` in `pendingUrl`.
1884 pendingUrl = formattedUrlString;
1886 // Load a waiting page. `null` specifies no encoding, which defaults to ASCII.
1887 mainWebView.loadData(waitingForOrbotHTMLString, "text/html", null);
1889 } else { // Set the non-Tor options.
1890 // Set `homepageString` as `homepage`.
1891 homepage = homepageString;
1893 // If formattedUrlString is null assign the homepage to it.
1894 if (formattedUrlString == null) {
1895 formattedUrlString = homepage;
1898 // Set JavaScript disabled search.
1899 if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1900 javaScriptDisabledSearchURL = javaScriptDisabledSearchCustomURLString;
1901 } else { // Use the string from the pre-built list.
1902 javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
1905 // Set JavaScript enabled search.
1906 if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1907 javaScriptEnabledSearchURL = javaScriptEnabledSearchCustomURLString;
1908 } else { // Use the string from the pre-built list.
1909 javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
1912 // Reset the proxy to default. The host is `""` and the port is `"0"`.
1913 OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
1915 // Reset `pendingUrl` if we are currently waiting for Orbot to connect.
1916 if (!pendingUrl.isEmpty()) {
1917 formattedUrlString = pendingUrl;
1922 // Set swipe to refresh.
1923 swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
1925 // Set the user agent initial status.
1926 switch (userAgentString) {
1927 case "Default user agent":
1928 // Set the user agent to `""`, which uses the default value.
1929 mainWebView.getSettings().setUserAgentString("");
1932 case "Custom user agent":
1933 // Set the custom user agent.
1934 mainWebView.getSettings().setUserAgentString(customUserAgentString);
1938 // Use the selected user agent.
1939 mainWebView.getSettings().setUserAgentString(userAgentString);
1943 // Set Do Not Track status.
1944 if (doNotTrackEnabled) {
1945 customHeaders.put("DNT", "1");
1947 customHeaders.remove("DNT");
1950 // Apply the appropriate full screen mode the `SYSTEM_UI` flags.
1951 if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {
1952 if (hideSystemBarsOnFullscreen) { // Hide everything.
1953 // Remove the translucent navigation setting if it is currently flagged.
1954 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
1956 // Remove the translucent status bar overlay.
1957 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
1959 // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
1960 drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
1962 /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
1963 * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
1964 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown.
1966 rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
1967 } else { // Hide everything except the status and navigation bars.
1968 // Add the translucent status flag if it is unset.
1969 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
1971 if (translucentNavigationBarOnFullscreen) {
1972 // Set the navigation bar to be translucent.
1973 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
1975 // Set the navigation bar to be black.
1976 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
1979 } else { // Switch to normal viewing mode.
1980 // Reset `inFullScreenBrowsingMode` to `false`.
1981 inFullScreenBrowsingMode = false;
1983 // Show the `appBar`.
1986 // Show the `BannerAd` in the free flavor.
1987 if (BuildConfig.FLAVOR.contentEquals("free")) {
1988 // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
1989 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
1991 // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
1992 adView = findViewById(R.id.adView);
1995 // Remove the translucent navigation bar flag if it is set.
1996 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
1998 // Add the translucent status flag if it is unset. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
1999 getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
2001 // Remove any `SYSTEM_UI` flags from `rootCoordinatorLayout`.
2002 rootCoordinatorLayout.setSystemUiVisibility(0);
2004 // Constrain `rootCoordinatorLayout` inside the status and navigation bars.
2005 rootCoordinatorLayout.setFitsSystemWindows(true);
2009 private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
2010 // Get handles for the icons.
2011 MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
2012 MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
2013 MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
2014 MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
2016 // Update `privacyIcon`.
2017 if (javaScriptEnabled) { // JavaScript is enabled.
2018 privacyIcon.setIcon(R.drawable.javascript_enabled);
2019 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled.
2020 privacyIcon.setIcon(R.drawable.warning);
2021 } else { // All the dangerous features are disabled.
2022 privacyIcon.setIcon(R.drawable.privacy_mode);
2025 // Update `firstPartyCookiesIcon`.
2026 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
2027 firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
2028 } else { // First-party cookies are disabled.
2029 firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
2032 // Update `domStorageIcon`.
2033 if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled.
2034 domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
2035 } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled.
2036 domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
2037 } else { // JavaScript is disabled, so DOM storage is ghosted.
2038 domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
2041 // Update `formDataIcon`.
2042 if (saveFormDataEnabled) { // Form data is enabled.
2043 formDataIcon.setIcon(R.drawable.form_data_enabled);
2044 } else { // Form data is disabled.
2045 formDataIcon.setIcon(R.drawable.form_data_disabled);
2048 // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity.
2049 if (runInvalidateOptionsMenu) {
2050 ActivityCompat.invalidateOptionsMenu(this);