2 * Copyright 2015-2016 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser;
22 import android.annotation.SuppressLint;
23 import android.app.DialogFragment;
24 import android.app.DownloadManager;
25 import android.content.Context;
26 import android.content.Intent;
27 import android.content.SharedPreferences;
28 import android.content.res.Configuration;
29 import android.graphics.Bitmap;
30 import android.graphics.drawable.BitmapDrawable;
31 import android.graphics.drawable.Drawable;
32 import android.net.Uri;
33 import android.net.http.SslCertificate;
34 import android.net.http.SslError;
35 import android.os.Build;
36 import android.os.Bundle;
37 import android.preference.PreferenceManager;
38 import android.print.PrintDocumentAdapter;
39 import android.print.PrintManager;
40 import android.support.annotation.NonNull;
41 import android.support.design.widget.NavigationView;
42 import android.support.design.widget.Snackbar;
43 import android.support.v4.app.ActivityCompat;
44 import android.support.v4.content.ContextCompat;
45 import android.support.v4.view.GravityCompat;
46 import android.support.v4.widget.DrawerLayout;
47 import android.support.v4.widget.SwipeRefreshLayout;
48 import android.support.v7.app.ActionBar;
49 import android.support.v7.app.ActionBarDrawerToggle;
50 import android.support.v7.app.AppCompatActivity;
51 import android.support.v7.app.AppCompatDialogFragment;
52 import android.support.v7.widget.Toolbar;
53 import android.text.Editable;
54 import android.text.TextWatcher;
55 import android.util.Patterns;
56 import android.view.ContextMenu;
57 import android.view.KeyEvent;
58 import android.view.Menu;
59 import android.view.MenuItem;
60 import android.view.View;
61 import android.view.inputmethod.InputMethodManager;
62 import android.webkit.CookieManager;
63 import android.webkit.DownloadListener;
64 import android.webkit.SslErrorHandler;
65 import android.webkit.WebChromeClient;
66 import android.webkit.WebStorage;
67 import android.webkit.WebView;
68 import android.webkit.WebViewClient;
69 import android.webkit.WebViewDatabase;
70 import android.widget.EditText;
71 import android.widget.FrameLayout;
72 import android.widget.ImageView;
73 import android.widget.LinearLayout;
74 import android.widget.ProgressBar;
75 import android.widget.RelativeLayout;
76 import android.widget.TextView;
78 import java.io.UnsupportedEncodingException;
79 import java.net.MalformedURLException;
81 import java.net.URLEncoder;
82 import java.util.HashMap;
85 // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
86 public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener,
87 SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener, DownloadImage.DownloadImageListener {
89 // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.
90 // It is also used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
91 public static ActionBar appBar;
93 // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`.
94 // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
95 public static Bitmap favoriteIcon;
97 // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`.
98 // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
99 public static String formattedUrlString;
101 // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`. It is also used in `onCreate()`.
102 public static SslCertificate sslCertificate;
105 // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`.
106 private WebView mainWebView;
108 // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`.
109 private SwipeRefreshLayout swipeRefreshLayout;
111 // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, and `onRestart()`.
112 private CookieManager cookieManager;
114 // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`.
115 private final Map<String, String> customHeaders = new HashMap<>();
117 // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`.
118 // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`.
119 private Boolean javaScriptEnabled;
121 // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
122 private boolean firstPartyCookiesEnabled;
124 // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
125 private boolean thirdPartyCookiesEnabled;
127 // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
128 private boolean domStorageEnabled;
130 // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
131 private boolean saveFormDataEnabled;
133 // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`.
134 private boolean swipeToRefreshEnabled;
136 // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`.
137 private String homepage;
139 // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
140 private String javaScriptDisabledSearchURL;
142 // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
143 private String javaScriptEnabledSearchURL;
145 // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`.
146 private Menu mainMenu;
148 // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
149 private ActionBarDrawerToggle drawerToggle;
151 // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
152 private DrawerLayout drawerLayout;
154 // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
155 private EditText urlTextBox;
157 // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
160 // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
161 private SslErrorHandler sslErrorHandler;
163 // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
164 private EditText findOnPageEditText;
166 // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
167 private InputMethodManager inputMethodManager;
170 // 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.
171 @SuppressLint("SetJavaScriptEnabled")
172 protected void onCreate(Bundle savedInstanceState) {
173 super.onCreate(savedInstanceState);
174 setContentView(R.layout.main_coordinatorlayout);
176 // Get a handle for `inputMethodManager`.
177 inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
179 // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
180 Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar);
181 setSupportActionBar(supportAppBar);
182 appBar = getSupportActionBar();
184 // This is needed to get rid of the Android Studio warning that appBar might be null.
185 assert appBar != null;
187 // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
188 appBar.setCustomView(R.layout.url_app_bar);
189 appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
191 // Set the "go" button on the keyboard to load the URL in urlTextBox.
192 urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
193 urlTextBox.setOnKeyListener(new View.OnKeyListener() {
195 public boolean onKey(View v, int keyCode, KeyEvent event) {
196 // If the event is a key-down event on the `enter` button, load the URL.
197 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
198 // Load the URL into the mainWebView and consume the event.
200 loadUrlFromTextBox();
201 } catch (UnsupportedEncodingException e) {
204 // If the enter key was pressed, consume the event.
207 // If any other key was pressed, do not consume the event.
213 // Get handles for `fullScreenVideoFrameLayout`, `mainWebView`, and `find_on_page_edittext`.
214 final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
215 mainWebView = (WebView) findViewById(R.id.mainWebView);
216 findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext);
218 // Update `findOnPageCountTextView`.
219 mainWebView.setFindListener(new WebView.FindListener() {
220 // Get a handle for `findOnPageCountTextView`.
221 TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview);
224 public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
225 if ((isDoneCounting) && (numberOfMatches == 0)) { // There are no matches.
226 // Set `findOnPageCountTextView` to `0/0`.
227 findOnPageCountTextView.setText(R.string.zero_of_zero);
228 } else if (isDoneCounting) { // There are matches.
229 // `activeMatchOrdinal` is zero-based.
230 int activeMatch = activeMatchOrdinal + 1;
232 // Set `findOnPageCountTextView`.
233 findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches);
238 // Search for the string on the page whenever a character changes in the `findOnPageEditText`.
239 findOnPageEditText.addTextChangedListener(new TextWatcher() {
241 public void beforeTextChanged(CharSequence s, int start, int count, int after) {
246 public void onTextChanged(CharSequence s, int start, int before, int count) {
251 public void afterTextChanged(Editable s) {
252 // Search for the text in `mainWebView`.
253 mainWebView.findAllAsync(findOnPageEditText.getText().toString());
257 // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard.
258 findOnPageEditText.setOnKeyListener(new View.OnKeyListener() {
260 public boolean onKey(View v, int keyCode, KeyEvent event) {
261 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { // The `enter` key was pressed.
262 // Hide the soft keyboard. `0` indicates no additional flags.
263 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
265 // Consume the event.
267 } else { // A different key was pressed.
268 // Do not consume the event.
274 // Implement swipe to refresh
275 swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
276 swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
277 swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
279 public void onRefresh() {
280 mainWebView.reload();
284 // Create the navigation drawer.
285 drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
286 // `DrawerTitle` identifies the drawer in accessibility mode.
287 drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
289 // Listen for touches on the navigation menu.
290 final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
291 navigationView.setNavigationItemSelectedListener(this);
293 // Get handles for `navigationMenu` and the back and forward menu items. The menu is zero-based, so item 1 and 2 and the second and third items in the menu.
294 final Menu navigationMenu = navigationView.getMenu();
295 final MenuItem navigationBackMenuItem = navigationMenu.getItem(1);
296 final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
298 // The `DrawerListener` allows us to update the Navigation Menu.
299 drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
301 public void onDrawerSlide(View drawerView, float slideOffset) {
305 public void onDrawerOpened(View drawerView) {
309 public void onDrawerClosed(View drawerView) {
313 public void onDrawerStateChanged(int newState) {
314 // Update the back and forward menu items every time the drawer opens.
315 navigationBackMenuItem.setEnabled(mainWebView.canGoBack());
316 navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
318 // Hide the keyboard so we can see the navigation menu. `0` indicates no additional flags.
319 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
323 // drawerToggle creates the hamburger icon at the start of the AppBar.
324 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
326 mainWebView.setWebViewClient(new WebViewClient() {
327 // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
328 // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
329 @SuppressWarnings("deprecation")
331 public boolean shouldOverrideUrlLoading(WebView view, String url) {
332 // Use an external email program if the link begins with "mailto:".
333 if (url.startsWith("mailto:")) {
334 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
335 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
337 // Parse the url and set it as the data for the `Intent`.
338 emailIntent.setData(Uri.parse(url));
340 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
341 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
344 startActivity(emailIntent);
346 } else { // Load the URL in Privacy Browser.
347 mainWebView.loadUrl(url, customHeaders);
352 // Update the URL in urlTextBox when the page starts to load.
354 public void onPageStarted(WebView view, String url, Bitmap favicon) {
355 // 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.
356 formattedUrlString = url;
358 // Display the loading URL is the URL text box.
359 urlTextBox.setText(url);
362 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
364 public void onPageFinished(WebView view, String url) {
365 formattedUrlString = url;
367 // Only update urlTextBox if the user is not typing in it.
368 if (!urlTextBox.hasFocus()) {
369 urlTextBox.setText(formattedUrlString);
372 // Store the SSL certificate so it can be accessed from `ViewSslCertificate`.
373 sslCertificate = mainWebView.getCertificate();
376 // Handle SSL Certificate errors.
378 public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
379 // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
380 sslErrorHandler = handler;
382 // Display the SSL error `AlertDialog`.
383 AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
384 sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
388 mainWebView.setWebChromeClient(new WebChromeClient() {
389 // Update the progress bar when a page is loading.
391 public void onProgressChanged(WebView view, int progress) {
392 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
393 progressBar.setProgress(progress);
394 if (progress < 100) {
395 progressBar.setVisibility(View.VISIBLE);
397 progressBar.setVisibility(View.GONE);
399 //Stop the `SwipeToRefresh` indicator if it is running
400 swipeRefreshLayout.setRefreshing(false);
404 // Set the favorite icon when it changes.
406 public void onReceivedIcon(WebView view, Bitmap icon) {
407 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
410 // Place the favorite icon in the appBar.
411 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
412 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
415 // Enter full screen video
417 public void onShowCustomView(View view, CustomViewCallback callback) {
420 // Show the fullScreenVideoFrameLayout.
421 fullScreenVideoFrameLayout.addView(view);
422 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
424 // Hide the mainWebView.
425 mainWebView.setVisibility(View.GONE);
427 // Hide the ad if this is the free flavor.
428 BannerAd.hideAd(adView);
430 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
431 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
432 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
434 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
437 // Exit full screen video
438 public void onHideCustomView() {
441 // Show the mainWebView.
442 mainWebView.setVisibility(View.VISIBLE);
444 // Show the ad if this is the free flavor.
445 BannerAd.showAd(adView);
447 // Hide the fullScreenVideoFrameLayout.
448 fullScreenVideoFrameLayout.removeAllViews();
449 fullScreenVideoFrameLayout.setVisibility(View.GONE);
453 // Register `mainWebView` for a context menu. This is used to see link targets and download images.
454 registerForContextMenu(mainWebView);
456 // Allow the downloading of files.
457 mainWebView.setDownloadListener(new DownloadListener() {
459 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
460 // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`.
461 AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength);
462 downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
466 // Allow pinch to zoom.
467 mainWebView.getSettings().setBuiltInZoomControls(true);
469 // Hide zoom controls.
470 mainWebView.getSettings().setDisplayZoomControls(false);
472 // Initialize cookieManager.
473 cookieManager = CookieManager.getInstance();
475 // 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).
476 customHeaders.put("X-Requested-With", "");
478 // Initialize the default preference values the first time the program is run.
479 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
481 // Apply the settings from the shared preferences.
484 // Get the intent information that started the app.
485 final Intent intent = getIntent();
487 if (intent.getData() != null) {
488 // Get the intent data and convert it to a string.
489 final Uri intentUriData = intent.getData();
490 formattedUrlString = intentUriData.toString();
493 // If formattedUrlString is null assign the homepage to it.
494 if (formattedUrlString == null) {
495 formattedUrlString = homepage;
498 // Load the initial website.
499 mainWebView.loadUrl(formattedUrlString, customHeaders);
501 // If the favorite icon is null, load the default.
502 if (favoriteIcon == null) {
503 // We have to use `ContextCompat` until API >= 21.
504 Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
505 BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
506 favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
509 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
510 adView = findViewById(R.id.adView);
511 BannerAd.requestAd(adView);
516 protected void onNewIntent(Intent intent) {
517 // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
520 if (intent.getData() != null) {
521 // Get the intent data and convert it to a string.
522 final Uri intentUriData = intent.getData();
523 formattedUrlString = intentUriData.toString();
526 // Close the navigation drawer if it is open.
527 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
528 drawerLayout.closeDrawer(GravityCompat.START);
532 mainWebView.loadUrl(formattedUrlString, customHeaders);
534 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
535 mainWebView.requestFocus();
539 public boolean onCreateOptionsMenu(Menu menu) {
540 // Inflate the menu; this adds items to the action bar if it is present.
541 getMenuInflater().inflate(R.menu.webview_options_menu, menu);
543 // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
546 // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step.
547 updatePrivacyIcons(false);
549 // Get handles for the menu items.
550 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
551 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
552 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
553 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
555 // Only display third-Party Cookies if SDK >= 21
556 toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
558 // Get the shared preference values. `this` references the current context.
559 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
561 // Set the status of the additional app bar icons. The default is `false`.
562 if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
563 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
564 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
565 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
566 } else { //Do not display the additional icons.
567 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
568 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
569 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
576 public boolean onPrepareOptionsMenu(Menu menu) {
577 // Get handles for the menu items.
578 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
579 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
580 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
581 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
582 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
583 MenuItem clearFormData = menu.findItem(R.id.clearFormData);
584 MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
586 // Set the status of the menu item checkboxes.
587 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
588 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
589 toggleDomStorage.setChecked(domStorageEnabled);
590 toggleSaveFormData.setChecked(saveFormDataEnabled);
592 // Enable third-party cookies if first-party cookies are enabled.
593 toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
595 // Enable DOM Storage if JavaScript is enabled.
596 toggleDomStorage.setEnabled(javaScriptEnabled);
598 // Enable Clear Cookies if there are any.
599 clearCookies.setEnabled(cookieManager.hasCookies());
601 // Enable Clear Form Data is there is any.
602 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
603 clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
605 // Only show `Refresh` if `swipeToRefresh` is disabled.
606 refreshMenuItem.setVisible(!swipeToRefreshEnabled);
608 // Initialize font size variables.
609 int fontSize = mainWebView.getSettings().getTextZoom();
610 String fontSizeTitle;
611 MenuItem selectedFontSizeMenuItem;
613 // Prepare the font size title and current size menu item.
616 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
617 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
621 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
622 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
626 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
627 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
631 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
632 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
636 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
637 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
641 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
642 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
646 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
647 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
651 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
652 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
656 // Set the font size title and select the current size menu item.
657 MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
658 fontSizeMenuItem.setTitle(fontSizeTitle);
659 selectedFontSizeMenuItem.setChecked(true);
661 // Run all the other default commands.
662 super.onPrepareOptionsMenu(menu);
664 // `return true` displays the menu.
669 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
670 @SuppressLint("SetJavaScriptEnabled")
671 // removeAllCookies is deprecated, but it is required for API < 21.
672 @SuppressWarnings("deprecation")
673 public boolean onOptionsItemSelected(MenuItem menuItem) {
674 int menuItemId = menuItem.getItemId();
676 // Set the commands that relate to the menu entries.
677 switch (menuItemId) {
678 case R.id.toggleJavaScript:
679 // Switch the status of javaScriptEnabled.
680 javaScriptEnabled = !javaScriptEnabled;
682 // Apply the new JavaScript status.
683 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
685 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
686 updatePrivacyIcons(true);
688 // Display a `Snackbar`.
689 if (javaScriptEnabled) { // JavaScrip is enabled.
690 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
691 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled.
692 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
693 } else { // Privacy mode.
694 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
697 // Reload the WebView.
698 mainWebView.reload();
701 case R.id.toggleFirstPartyCookies:
702 // Switch the status of firstPartyCookiesEnabled.
703 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
705 // Update the menu checkbox.
706 menuItem.setChecked(firstPartyCookiesEnabled);
708 // Apply the new cookie status.
709 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
711 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
712 updatePrivacyIcons(true);
714 // Display a `Snackbar`.
715 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
716 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
717 } else if (javaScriptEnabled){ // JavaScript is still enabled.
718 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
719 } else { // Privacy mode.
720 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
723 // Reload the WebView.
724 mainWebView.reload();
727 case R.id.toggleThirdPartyCookies:
728 if (Build.VERSION.SDK_INT >= 21) {
729 // Switch the status of thirdPartyCookiesEnabled.
730 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
732 // Update the menu checkbox.
733 menuItem.setChecked(thirdPartyCookiesEnabled);
735 // Apply the new cookie status.
736 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
738 // Display a `Snackbar`.
739 if (thirdPartyCookiesEnabled) {
740 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
742 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
745 // Reload the WebView.
746 mainWebView.reload();
747 } // Else do nothing because SDK < 21.
750 case R.id.toggleDomStorage:
751 // Switch the status of domStorageEnabled.
752 domStorageEnabled = !domStorageEnabled;
754 // Update the menu checkbox.
755 menuItem.setChecked(domStorageEnabled);
757 // Apply the new DOM Storage status.
758 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
760 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
761 updatePrivacyIcons(true);
763 // Display a `Snackbar`.
764 if (domStorageEnabled) {
765 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
767 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
770 // Reload the WebView.
771 mainWebView.reload();
774 case R.id.toggleSaveFormData:
775 // Switch the status of saveFormDataEnabled.
776 saveFormDataEnabled = !saveFormDataEnabled;
778 // Update the menu checkbox.
779 menuItem.setChecked(saveFormDataEnabled);
781 // Apply the new form data status.
782 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
784 // Display a `Snackbar`.
785 if (saveFormDataEnabled) {
786 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
788 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
791 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
792 updatePrivacyIcons(true);
794 // Reload the WebView.
795 mainWebView.reload();
798 case R.id.clearCookies:
799 if (Build.VERSION.SDK_INT < 21) {
800 cookieManager.removeAllCookie();
802 cookieManager.removeAllCookies(null);
804 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
807 case R.id.clearDomStorage:
808 WebStorage webStorage = WebStorage.getInstance();
809 webStorage.deleteAllData();
810 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
813 case R.id.clearFormData:
814 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
815 mainWebViewDatabase.clearFormData();
816 mainWebView.reload();
819 case R.id.fontSizeFiftyPercent:
820 mainWebView.getSettings().setTextZoom(50);
823 case R.id.fontSizeSeventyFivePercent:
824 mainWebView.getSettings().setTextZoom(75);
827 case R.id.fontSizeOneHundredPercent:
828 mainWebView.getSettings().setTextZoom(100);
831 case R.id.fontSizeOneHundredTwentyFivePercent:
832 mainWebView.getSettings().setTextZoom(125);
835 case R.id.fontSizeOneHundredFiftyPercent:
836 mainWebView.getSettings().setTextZoom(150);
839 case R.id.fontSizeOneHundredSeventyFivePercent:
840 mainWebView.getSettings().setTextZoom(175);
843 case R.id.fontSizeTwoHundredPercent:
844 mainWebView.getSettings().setTextZoom(200);
847 case R.id.find_on_page:
848 // Hide the URL app bar.
849 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
850 appBarToolbar.setVisibility(View.GONE);
852 // Show the Find on Page `RelativeLayout`.
853 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
854 findOnPageLinearLayout.setVisibility(View.VISIBLE);
856 // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android.
857 // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
858 findOnPageEditText.postDelayed(new Runnable()
863 // Set the focus on `findOnPageEditText`.
864 findOnPageEditText.requestFocus();
866 // Display the keyboard.
867 inputMethodManager.showSoftInput(findOnPageEditText, 0);
873 Intent shareIntent = new Intent();
874 shareIntent.setAction(Intent.ACTION_SEND);
875 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
876 shareIntent.setType("text/plain");
877 startActivity(Intent.createChooser(shareIntent, "Share URL"));
880 case R.id.addToHomescreen:
881 // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`.
882 AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
883 createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
885 //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below.
889 // Get a `PrintManager` instance.
890 PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
892 // Convert `mainWebView` to `printDocumentAdapter`.
893 PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
895 // Print the document. The print attributes are `null`.
896 printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
900 mainWebView.reload();
904 // Don't consume the event.
905 return super.onOptionsItemSelected(menuItem);
909 // removeAllCookies is deprecated, but it is required for API < 21.
910 @SuppressWarnings("deprecation")
912 public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
913 int menuItemId = menuItem.getItemId();
915 switch (menuItemId) {
917 mainWebView.loadUrl(homepage, customHeaders);
921 if (mainWebView.canGoBack()) {
922 mainWebView.goBack();
927 if (mainWebView.canGoForward()) {
928 mainWebView.goForward();
933 // Launch BookmarksActivity.
934 Intent bookmarksIntent = new Intent(this, BookmarksActivity.class);
935 startActivity(bookmarksIntent);
939 // Launch the system Download Manager.
940 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
942 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
943 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
945 startActivity(downloadManagerIntent);
949 // Launch `SettingsActivity`.
950 Intent settingsIntent = new Intent(this, SettingsActivity.class);
951 startActivity(settingsIntent);
955 // Launch `GuideActivity`.
956 Intent guideIntent = new Intent(this, GuideActivity.class);
957 startActivity(guideIntent);
961 // Launch `AboutActivity`.
962 Intent aboutIntent = new Intent(this, AboutActivity.class);
963 startActivity(aboutIntent);
966 case R.id.clearAndExit:
967 // Clear cookies. The commands changed slightly in API 21.
968 if (Build.VERSION.SDK_INT >= 21) {
969 cookieManager.removeAllCookies(null);
971 cookieManager.removeAllCookie();
974 // Clear DOM storage.
975 WebStorage domStorage = WebStorage.getInstance();
976 domStorage.deleteAllData();
979 WebViewDatabase formData = WebViewDatabase.getInstance(this);
980 formData.clearFormData();
982 // Clear cache. The argument of "true" includes disk files.
983 mainWebView.clearCache(true);
985 // Clear the back/forward history.
986 mainWebView.clearHistory();
988 // Clear any SSL certificate preferences.
989 mainWebView.clearSslPreferences();
991 // Clear `formattedUrlString`.
992 formattedUrlString = null;
994 // Clear `customHeaders`.
995 customHeaders.clear();
997 // Detach all views from `mainWebViewRelativeLayout`.
998 RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout);
999 mainWebViewRelativeLayout.removeAllViews();
1001 // Destroy the internal state of `mainWebView`.
1002 mainWebView.destroy();
1004 // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
1005 if (Build.VERSION.SDK_INT >= 21) {
1006 finishAndRemoveTask();
1011 // Remove the terminated program from RAM. The status code is `0`.
1019 // Close the navigation drawer.
1020 drawerLayout.closeDrawer(GravityCompat.START);
1025 public void onPostCreate(Bundle savedInstanceState) {
1026 super.onPostCreate(savedInstanceState);
1028 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
1029 drawerToggle.syncState();
1033 public void onConfigurationChanged(Configuration newConfig) {
1034 super.onConfigurationChanged(newConfig);
1036 // Reload the ad if this is the free flavor.
1037 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
1039 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
1040 adView = findViewById(R.id.adView);
1042 // `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
1043 // ActivityCompat.invalidateOptionsMenu(this);
1047 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
1048 // Store the `HitTestResult`.
1049 final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
1052 final String imageUrl;
1053 final String linkUrl;
1055 switch (hitTestResult.getType()) {
1056 // `SRC_ANCHOR_TYPE` is a link.
1057 case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1058 // Get the target URL.
1059 linkUrl = hitTestResult.getExtra();
1061 // Set the target URL as the title of the `ContextMenu`.
1062 menu.setHeaderTitle(linkUrl);
1064 // Add a `Load URL` button.
1065 menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1067 public boolean onMenuItemClick(MenuItem item) {
1068 mainWebView.loadUrl(linkUrl, customHeaders);
1073 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1074 menu.add(R.string.cancel);
1077 case WebView.HitTestResult.EMAIL_TYPE:
1078 // Get the target URL.
1079 linkUrl = hitTestResult.getExtra();
1081 // Set the target URL as the title of the `ContextMenu`.
1082 menu.setHeaderTitle(linkUrl);
1084 // Add a `Write Email` button.
1085 menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1087 public boolean onMenuItemClick(MenuItem item) {
1088 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
1089 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
1091 // Parse the url and set it as the data for the `Intent`.
1092 emailIntent.setData(Uri.parse("mailto:" + linkUrl));
1094 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
1095 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1098 startActivity(emailIntent);
1103 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1104 menu.add(R.string.cancel);
1107 // `IMAGE_TYPE` is an image.
1108 case WebView.HitTestResult.IMAGE_TYPE:
1109 // Get the image URL.
1110 imageUrl = hitTestResult.getExtra();
1112 // Set the image URL as the title of the `ContextMenu`.
1113 menu.setHeaderTitle(imageUrl);
1115 // Add a `View Image` button.
1116 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1118 public boolean onMenuItemClick(MenuItem item) {
1119 mainWebView.loadUrl(imageUrl, customHeaders);
1124 // Add a `Download Image` button.
1125 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1127 public boolean onMenuItemClick(MenuItem item) {
1128 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1129 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1130 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1135 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1136 menu.add(R.string.cancel);
1140 // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
1141 case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1142 // Get the image URL.
1143 imageUrl = hitTestResult.getExtra();
1145 // Set the image URL as the title of the `ContextMenu`.
1146 menu.setHeaderTitle(imageUrl);
1148 // Add a `View Image` button.
1149 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1151 public boolean onMenuItemClick(MenuItem item) {
1152 mainWebView.loadUrl(imageUrl, customHeaders);
1157 // Add a `Download Image` button.
1158 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1160 public boolean onMenuItemClick(MenuItem item) {
1161 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1162 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1163 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1168 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1169 menu.add(R.string.cancel);
1175 public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
1176 // Get shortcutNameEditText from the alert dialog.
1177 EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
1179 // Create the bookmark shortcut based on formattedUrlString.
1180 Intent bookmarkShortcut = new Intent();
1181 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
1182 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
1184 // Place the bookmark shortcut on the home screen.
1185 Intent placeBookmarkShortcut = new Intent();
1186 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
1187 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
1188 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
1189 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
1190 sendBroadcast(placeBookmarkShortcut);
1194 public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
1195 // Get a handle for the system `DOWNLOAD_SERVICE`.
1196 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1198 // Parse `imageUrl`.
1199 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
1201 // Get the file name from `dialogFragment`.
1202 EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
1203 String imageName = downloadImageNameEditText.getText().toString();
1205 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1206 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
1207 downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
1208 } else { // Only set the title using `imageName`.
1209 downloadRequest.setTitle(imageName);
1212 // Allow `MediaScanner` to index the download if it is a media file.
1213 downloadRequest.allowScanningByMediaScanner();
1215 // Add the URL as the description for the download.
1216 downloadRequest.setDescription(imageUrl);
1218 // Show the download notification after the download is completed.
1219 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1221 // Initiate the download.
1222 downloadManager.enqueue(downloadRequest);
1226 public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
1227 // Get a handle for the system `DOWNLOAD_SERVICE`.
1228 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1230 // Parse `downloadUrl`.
1231 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
1233 // Get the file name from `dialogFragment`.
1234 EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
1235 String fileName = downloadFileNameEditText.getText().toString();
1237 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1238 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `fileName`.
1239 downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
1240 } else { // Only set the title using `fileName`.
1241 downloadRequest.setTitle(fileName);
1244 // Allow `MediaScanner` to index the download if it is a media file.
1245 downloadRequest.allowScanningByMediaScanner();
1247 // Add the URL as the description for the download.
1248 downloadRequest.setDescription(downloadUrl);
1250 // Show the download notification after the download is completed.
1251 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1253 // Initiate the download.
1254 downloadManager.enqueue(downloadRequest);
1257 public void viewSslCertificate(View view) {
1258 // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
1259 DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
1260 viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
1264 public void onSslErrorCancel() {
1265 sslErrorHandler.cancel();
1269 public void onSslErrorProceed() {
1270 sslErrorHandler.proceed();
1273 // Override onBackPressed to handle the navigation drawer and mainWebView.
1275 public void onBackPressed() {
1276 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
1278 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
1279 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
1280 drawerLayout.closeDrawer(GravityCompat.START);
1282 // Load the previous URL if available.
1283 if (mainWebView.canGoBack()) {
1284 mainWebView.goBack();
1286 // Pass onBackPressed to the system.
1287 super.onBackPressed();
1293 public void onPause() {
1294 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
1295 BannerAd.pauseAd(adView);
1301 public void onResume() {
1304 // We need to resume the adView for the free flavor.
1305 BannerAd.resumeAd(adView);
1309 public void onRestart() {
1312 // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`.
1315 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1316 updatePrivacyIcons(true);
1320 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
1321 // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string.
1322 String unformattedUrlString = urlTextBox.getText().toString().trim();
1324 URL unformattedUrl = null;
1325 Uri.Builder formattedUri = new Uri.Builder();
1327 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
1328 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
1329 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
1330 if (!unformattedUrlString.startsWith("http")) {
1331 unformattedUrlString = "http://" + unformattedUrlString;
1334 // 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.
1336 unformattedUrl = new URL(unformattedUrlString);
1337 } catch (MalformedURLException e) {
1338 e.printStackTrace();
1341 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
1342 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
1343 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
1344 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
1345 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
1346 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
1348 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
1349 formattedUrlString = formattedUri.build().toString();
1351 // Sanitize the search input and convert it to a DuckDuckGo search.
1352 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
1354 // Use the correct search URL.
1355 if (javaScriptEnabled) { // JavaScript is enabled.
1356 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
1357 } else { // JavaScript is disabled.
1358 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
1362 mainWebView.loadUrl(formattedUrlString, customHeaders);
1364 // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
1365 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1368 public void findPreviousOnPage(View view) {
1369 // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards.
1370 mainWebView.findNext(false);
1373 public void findNextOnPage(View view) {
1374 // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
1375 mainWebView.findNext(true);
1378 public void closeFindOnPage(View view) {
1379 // Delete the contents of `find_on_page_edittext`.
1380 findOnPageEditText.setText(null);
1382 // Clear the highlighted phrases.
1383 mainWebView.clearMatches();
1385 // Hide the Find on Page `RelativeLayout`.
1386 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
1387 findOnPageLinearLayout.setVisibility(View.GONE);
1389 // Show the URL app bar.
1390 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
1391 appBarToolbar.setVisibility(View.VISIBLE);
1393 // Hide the keyboard so we can see the webpage. `0` indicates no additional flags.
1394 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1397 private void applySettings() {
1398 // Get the shared preference values. `this` references the current context.
1399 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
1401 // Store the values from `sharedPreferences` in variables.
1402 String userAgentString = sharedPreferences.getString("user_agent", "Default user agent");
1403 String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
1404 String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
1405 String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
1406 String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
1407 String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
1408 String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
1409 String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
1410 swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
1411 boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true);
1412 boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
1414 // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
1415 if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting.
1416 // Get the values from `sharedPreferences`.
1417 javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
1418 firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
1419 thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
1420 domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
1421 saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
1423 // Apply the default settings.
1424 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
1425 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
1426 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
1427 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
1428 mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
1430 // Set third-party cookies status if API >= 21.
1431 if (Build.VERSION.SDK_INT >= 21) {
1432 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
1436 // Apply the other settings from `sharedPreferences`.
1437 homepage = homepageString;
1438 swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
1440 // Set the user agent initial status.
1441 switch (userAgentString) {
1442 case "Default user agent":
1443 // Set the user agent to `""`, which uses the default value.
1444 mainWebView.getSettings().setUserAgentString("");
1447 case "Custom user agent":
1448 // Set the custom user agent.
1449 mainWebView.getSettings().setUserAgentString(customUserAgentString);
1453 // Use the selected user agent.
1454 mainWebView.getSettings().setUserAgentString(userAgentString);
1458 // Set JavaScript disabled search.
1459 if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1460 javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString;
1461 } else { // Use the string from the pre-built list.
1462 javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
1465 // Set JavaScript enabled search.
1466 if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1467 javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString;
1468 } else { // Use the string from the pre-built list.
1469 javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
1472 // Set Do Not Track status.
1473 if (doNotTrackEnabled) {
1474 customHeaders.put("DNT", "1");
1476 customHeaders.remove("DNT");
1479 // Set Orbot proxy status.
1480 if (proxyThroughOrbot) {
1481 // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed.
1482 OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
1483 } else { // Reset the proxy to default. The host is `""` and the port is `"0"`.
1484 OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
1488 private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
1489 // Get handles for the icons.
1490 MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
1491 MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
1492 MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
1493 MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
1495 // Update `privacyIcon`.
1496 if (javaScriptEnabled) { // JavaScript is enabled.
1497 privacyIcon.setIcon(R.drawable.javascript_enabled);
1498 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled.
1499 privacyIcon.setIcon(R.drawable.warning);
1500 } else { // All the dangerous features are disabled.
1501 privacyIcon.setIcon(R.drawable.privacy_mode);
1504 // Update `firstPartyCookiesIcon`.
1505 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
1506 firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
1507 } else { // First-party cookies are disabled.
1508 firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
1511 // Update `domStorageIcon`.
1512 if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled.
1513 domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
1514 } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled.
1515 domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
1516 } else { // JavaScript is disabled, so DOM storage is ghosted.
1517 domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
1520 // Update `formDataIcon`.
1521 if (saveFormDataEnabled) { // Form data is enabled.
1522 formDataIcon.setIcon(R.drawable.form_data_enabled);
1523 } else { // Form data is disabled.
1524 formDataIcon.setIcon(R.drawable.form_data_disabled);
1527 // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity.
1528 if (runInvalidateOptionsMenu) {
1529 ActivityCompat.invalidateOptionsMenu(this);