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 // The 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 // drawerToggle creates the hamburger icon at the start of the AppBar.
294 drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
296 mainWebView.setWebViewClient(new WebViewClient() {
297 // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
298 // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
299 @SuppressWarnings("deprecation")
301 public boolean shouldOverrideUrlLoading(WebView view, String url) {
302 // Use an external email program if the link begins with "mailto:".
303 if (url.startsWith("mailto:")) {
304 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
305 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
307 // Parse the url and set it as the data for the `Intent`.
308 emailIntent.setData(Uri.parse(url));
310 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
311 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
314 startActivity(emailIntent);
316 } else { // Load the URL in Privacy Browser.
317 mainWebView.loadUrl(url, customHeaders);
322 // Update the URL in urlTextBox when the page starts to load.
324 public void onPageStarted(WebView view, String url, Bitmap favicon) {
325 // 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.
326 formattedUrlString = url;
328 // Display the loading URL is the URL text box.
329 urlTextBox.setText(url);
332 // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load.
334 public void onPageFinished(WebView view, String url) {
335 formattedUrlString = url;
337 // Only update urlTextBox if the user is not typing in it.
338 if (!urlTextBox.hasFocus()) {
339 urlTextBox.setText(formattedUrlString);
342 // Store the SSL certificate so it can be accessed from `ViewSslCertificate`.
343 sslCertificate = mainWebView.getCertificate();
346 // Handle SSL Certificate errors.
348 public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
349 // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
350 sslErrorHandler = handler;
352 // Display the SSL error `AlertDialog`.
353 AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
354 sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
358 mainWebView.setWebChromeClient(new WebChromeClient() {
359 // Update the progress bar when a page is loading.
361 public void onProgressChanged(WebView view, int progress) {
362 ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
363 progressBar.setProgress(progress);
364 if (progress < 100) {
365 progressBar.setVisibility(View.VISIBLE);
367 progressBar.setVisibility(View.GONE);
369 //Stop the `SwipeToRefresh` indicator if it is running
370 swipeRefreshLayout.setRefreshing(false);
374 // Set the favorite icon when it changes.
376 public void onReceivedIcon(WebView view, Bitmap icon) {
377 // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
380 // Place the favorite icon in the appBar.
381 ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
382 imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
385 // Enter full screen video
387 public void onShowCustomView(View view, CustomViewCallback callback) {
390 // Show the fullScreenVideoFrameLayout.
391 fullScreenVideoFrameLayout.addView(view);
392 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
394 // Hide the mainWebView.
395 mainWebView.setVisibility(View.GONE);
397 // Hide the ad if this is the free flavor.
398 BannerAd.hideAd(adView);
400 /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
401 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
402 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
404 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
407 // Exit full screen video
408 public void onHideCustomView() {
411 // Show the mainWebView.
412 mainWebView.setVisibility(View.VISIBLE);
414 // Show the ad if this is the free flavor.
415 BannerAd.showAd(adView);
417 // Hide the fullScreenVideoFrameLayout.
418 fullScreenVideoFrameLayout.removeAllViews();
419 fullScreenVideoFrameLayout.setVisibility(View.GONE);
423 // Register `mainWebView` for a context menu. This is used to see link targets and download images.
424 registerForContextMenu(mainWebView);
426 // Allow the downloading of files.
427 mainWebView.setDownloadListener(new DownloadListener() {
429 public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
430 // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`.
431 AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength);
432 downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
436 // Allow pinch to zoom.
437 mainWebView.getSettings().setBuiltInZoomControls(true);
439 // Hide zoom controls.
440 mainWebView.getSettings().setDisplayZoomControls(false);
442 // Initialize cookieManager.
443 cookieManager = CookieManager.getInstance();
445 // 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).
446 customHeaders.put("X-Requested-With", "");
448 // Initialize the default preference values the first time the program is run.
449 PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
451 // Apply the settings from the shared preferences.
454 // Get the intent information that started the app.
455 final Intent intent = getIntent();
457 if (intent.getData() != null) {
458 // Get the intent data and convert it to a string.
459 final Uri intentUriData = intent.getData();
460 formattedUrlString = intentUriData.toString();
463 // If formattedUrlString is null assign the homepage to it.
464 if (formattedUrlString == null) {
465 formattedUrlString = homepage;
468 // Load the initial website.
469 mainWebView.loadUrl(formattedUrlString, customHeaders);
471 // If the favorite icon is null, load the default.
472 if (favoriteIcon == null) {
473 // We have to use `ContextCompat` until API >= 21.
474 Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
475 BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
476 favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
479 // Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
480 adView = findViewById(R.id.adView);
481 BannerAd.requestAd(adView);
486 protected void onNewIntent(Intent intent) {
487 // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
490 if (intent.getData() != null) {
491 // Get the intent data and convert it to a string.
492 final Uri intentUriData = intent.getData();
493 formattedUrlString = intentUriData.toString();
496 // Close the navigation drawer if it is open.
497 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
498 drawerLayout.closeDrawer(GravityCompat.START);
502 mainWebView.loadUrl(formattedUrlString, customHeaders);
504 // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
505 mainWebView.requestFocus();
509 public boolean onCreateOptionsMenu(Menu menu) {
510 // Inflate the menu; this adds items to the action bar if it is present.
511 getMenuInflater().inflate(R.menu.webview_options_menu, menu);
513 // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
516 // Set the initial status of the privacy icons. `false` does not call `invalidateOptionsMenu` as the last step.
517 updatePrivacyIcons(false);
519 // Get handles for the menu items.
520 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
521 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
522 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
523 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
525 // Only display third-Party Cookies if SDK >= 21
526 toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
528 // Get the shared preference values. `this` references the current context.
529 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
531 // Set the status of the additional app bar icons. The default is `false`.
532 if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
533 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
534 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
535 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
536 } else { //Do not display the additional icons.
537 toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
538 toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
539 toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
546 public boolean onPrepareOptionsMenu(Menu menu) {
547 // Get handles for the menu items.
548 MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
549 MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
550 MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
551 MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
552 MenuItem clearCookies = menu.findItem(R.id.clearCookies);
553 MenuItem clearFormData = menu.findItem(R.id.clearFormData);
554 MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
556 // Set the status of the menu item checkboxes.
557 toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
558 toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
559 toggleDomStorage.setChecked(domStorageEnabled);
560 toggleSaveFormData.setChecked(saveFormDataEnabled);
562 // Enable third-party cookies if first-party cookies are enabled.
563 toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
565 // Enable DOM Storage if JavaScript is enabled.
566 toggleDomStorage.setEnabled(javaScriptEnabled);
568 // Enable Clear Cookies if there are any.
569 clearCookies.setEnabled(cookieManager.hasCookies());
571 // Enable Clear Form Data is there is any.
572 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
573 clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
575 // Only show `Refresh` if `swipeToRefresh` is disabled.
576 refreshMenuItem.setVisible(!swipeToRefreshEnabled);
578 // Initialize font size variables.
579 int fontSize = mainWebView.getSettings().getTextZoom();
580 String fontSizeTitle;
581 MenuItem selectedFontSizeMenuItem;
583 // Prepare the font size title and current size menu item.
586 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
587 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
591 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
592 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
596 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
597 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
601 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
602 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
606 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
607 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
611 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
612 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
616 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
617 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
621 fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
622 selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
626 // Set the font size title and select the current size menu item.
627 MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
628 fontSizeMenuItem.setTitle(fontSizeTitle);
629 selectedFontSizeMenuItem.setChecked(true);
631 // Run all the other default commands.
632 super.onPrepareOptionsMenu(menu);
634 // `return true` displays the menu.
639 // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
640 @SuppressLint("SetJavaScriptEnabled")
641 // removeAllCookies is deprecated, but it is required for API < 21.
642 @SuppressWarnings("deprecation")
643 public boolean onOptionsItemSelected(MenuItem menuItem) {
644 int menuItemId = menuItem.getItemId();
646 // Set the commands that relate to the menu entries.
647 switch (menuItemId) {
648 case R.id.toggleJavaScript:
649 // Switch the status of javaScriptEnabled.
650 javaScriptEnabled = !javaScriptEnabled;
652 // Apply the new JavaScript status.
653 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
655 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
656 updatePrivacyIcons(true);
658 // Display a `Snackbar`.
659 if (javaScriptEnabled) { // JavaScrip is enabled.
660 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
661 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled.
662 Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
663 } else { // Privacy mode.
664 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
667 // Reload the WebView.
668 mainWebView.reload();
671 case R.id.toggleFirstPartyCookies:
672 // Switch the status of firstPartyCookiesEnabled.
673 firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
675 // Update the menu checkbox.
676 menuItem.setChecked(firstPartyCookiesEnabled);
678 // Apply the new cookie status.
679 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
681 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
682 updatePrivacyIcons(true);
684 // Display a `Snackbar`.
685 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
686 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
687 } else if (javaScriptEnabled){ // JavaScript is still enabled.
688 Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
689 } else { // Privacy mode.
690 Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
693 // Reload the WebView.
694 mainWebView.reload();
697 case R.id.toggleThirdPartyCookies:
698 if (Build.VERSION.SDK_INT >= 21) {
699 // Switch the status of thirdPartyCookiesEnabled.
700 thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
702 // Update the menu checkbox.
703 menuItem.setChecked(thirdPartyCookiesEnabled);
705 // Apply the new cookie status.
706 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
708 // Display a `Snackbar`.
709 if (thirdPartyCookiesEnabled) {
710 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
712 Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
715 // Reload the WebView.
716 mainWebView.reload();
717 } // Else do nothing because SDK < 21.
720 case R.id.toggleDomStorage:
721 // Switch the status of domStorageEnabled.
722 domStorageEnabled = !domStorageEnabled;
724 // Update the menu checkbox.
725 menuItem.setChecked(domStorageEnabled);
727 // Apply the new DOM Storage status.
728 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
730 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
731 updatePrivacyIcons(true);
733 // Display a `Snackbar`.
734 if (domStorageEnabled) {
735 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
737 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
740 // Reload the WebView.
741 mainWebView.reload();
744 case R.id.toggleSaveFormData:
745 // Switch the status of saveFormDataEnabled.
746 saveFormDataEnabled = !saveFormDataEnabled;
748 // Update the menu checkbox.
749 menuItem.setChecked(saveFormDataEnabled);
751 // Apply the new form data status.
752 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
754 // Display a `Snackbar`.
755 if (saveFormDataEnabled) {
756 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
758 Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
761 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
762 updatePrivacyIcons(true);
764 // Reload the WebView.
765 mainWebView.reload();
768 case R.id.clearCookies:
769 if (Build.VERSION.SDK_INT < 21) {
770 cookieManager.removeAllCookie();
772 cookieManager.removeAllCookies(null);
774 Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
777 case R.id.clearDomStorage:
778 WebStorage webStorage = WebStorage.getInstance();
779 webStorage.deleteAllData();
780 Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
783 case R.id.clearFormData:
784 WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
785 mainWebViewDatabase.clearFormData();
786 mainWebView.reload();
789 case R.id.fontSizeFiftyPercent:
790 mainWebView.getSettings().setTextZoom(50);
793 case R.id.fontSizeSeventyFivePercent:
794 mainWebView.getSettings().setTextZoom(75);
797 case R.id.fontSizeOneHundredPercent:
798 mainWebView.getSettings().setTextZoom(100);
801 case R.id.fontSizeOneHundredTwentyFivePercent:
802 mainWebView.getSettings().setTextZoom(125);
805 case R.id.fontSizeOneHundredFiftyPercent:
806 mainWebView.getSettings().setTextZoom(150);
809 case R.id.fontSizeOneHundredSeventyFivePercent:
810 mainWebView.getSettings().setTextZoom(175);
813 case R.id.fontSizeTwoHundredPercent:
814 mainWebView.getSettings().setTextZoom(200);
817 case R.id.find_on_page:
818 // Hide the URL app bar.
819 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
820 appBarToolbar.setVisibility(View.GONE);
822 // Show the Find on Page `RelativeLayout`.
823 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
824 findOnPageLinearLayout.setVisibility(View.VISIBLE);
826 // Display the keyboard. We have to wait 200 ms before running the command to work around a bug in Android.
827 // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
828 findOnPageEditText.postDelayed(new Runnable()
833 // Set the focus on `findOnPageEditText`.
834 findOnPageEditText.requestFocus();
836 // Display the keyboard.
837 inputMethodManager.showSoftInput(findOnPageEditText, 0);
843 Intent shareIntent = new Intent();
844 shareIntent.setAction(Intent.ACTION_SEND);
845 shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
846 shareIntent.setType("text/plain");
847 startActivity(Intent.createChooser(shareIntent, "Share URL"));
850 case R.id.addToHomescreen:
851 // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`.
852 AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
853 createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
855 //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below.
859 // Get a `PrintManager` instance.
860 PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
862 // Convert `mainWebView` to `printDocumentAdapter`.
863 PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
865 // Print the document. The print attributes are `null`.
866 printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
870 mainWebView.reload();
874 // Don't consume the event.
875 return super.onOptionsItemSelected(menuItem);
879 // removeAllCookies is deprecated, but it is required for API < 21.
880 @SuppressWarnings("deprecation")
882 public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
883 int menuItemId = menuItem.getItemId();
885 switch (menuItemId) {
887 mainWebView.loadUrl(homepage, customHeaders);
891 if (mainWebView.canGoBack()) {
892 mainWebView.goBack();
897 if (mainWebView.canGoForward()) {
898 mainWebView.goForward();
903 // Launch BookmarksActivity.
904 Intent bookmarksIntent = new Intent(this, BookmarksActivity.class);
905 startActivity(bookmarksIntent);
909 // Launch the system Download Manager.
910 Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
912 // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
913 downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
915 startActivity(downloadManagerIntent);
919 // Launch `SettingsActivity`.
920 Intent settingsIntent = new Intent(this, SettingsActivity.class);
921 startActivity(settingsIntent);
925 // Launch `GuideActivity`.
926 Intent guideIntent = new Intent(this, GuideActivity.class);
927 startActivity(guideIntent);
931 // Launch `AboutActivity`.
932 Intent aboutIntent = new Intent(this, AboutActivity.class);
933 startActivity(aboutIntent);
936 case R.id.clearAndExit:
937 // Clear cookies. The commands changed slightly in API 21.
938 if (Build.VERSION.SDK_INT >= 21) {
939 cookieManager.removeAllCookies(null);
941 cookieManager.removeAllCookie();
944 // Clear DOM storage.
945 WebStorage domStorage = WebStorage.getInstance();
946 domStorage.deleteAllData();
949 WebViewDatabase formData = WebViewDatabase.getInstance(this);
950 formData.clearFormData();
952 // Clear cache. The argument of "true" includes disk files.
953 mainWebView.clearCache(true);
955 // Clear the back/forward history.
956 mainWebView.clearHistory();
958 // Clear any SSL certificate preferences.
959 mainWebView.clearSslPreferences();
961 // Clear `formattedUrlString`.
962 formattedUrlString = null;
964 // Clear `customHeaders`.
965 customHeaders.clear();
967 // Detach all views from `mainWebViewRelativeLayout`.
968 RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout);
969 mainWebViewRelativeLayout.removeAllViews();
971 // Destroy the internal state of `mainWebView`.
972 mainWebView.destroy();
974 // Close Privacy Browser. `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
975 if (Build.VERSION.SDK_INT >= 21) {
976 finishAndRemoveTask();
981 // Remove the terminated program from RAM. The status code is `0`.
989 // Close the navigation drawer.
990 drawerLayout.closeDrawer(GravityCompat.START);
995 public void onPostCreate(Bundle savedInstanceState) {
996 super.onPostCreate(savedInstanceState);
998 // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
999 drawerToggle.syncState();
1003 public void onConfigurationChanged(Configuration newConfig) {
1004 super.onConfigurationChanged(newConfig);
1006 // Reload the ad if this is the free flavor.
1007 BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
1009 // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
1010 adView = findViewById(R.id.adView);
1012 // `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
1013 // ActivityCompat.invalidateOptionsMenu(this);
1017 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
1018 // Store the `HitTestResult`.
1019 final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
1022 final String imageUrl;
1023 final String linkUrl;
1025 switch (hitTestResult.getType()) {
1026 // `SRC_ANCHOR_TYPE` is a link.
1027 case WebView.HitTestResult.SRC_ANCHOR_TYPE:
1028 // Get the target URL.
1029 linkUrl = hitTestResult.getExtra();
1031 // Set the target URL as the title of the `ContextMenu`.
1032 menu.setHeaderTitle(linkUrl);
1034 // Add a `Load URL` button.
1035 menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1037 public boolean onMenuItemClick(MenuItem item) {
1038 mainWebView.loadUrl(linkUrl, customHeaders);
1043 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1044 menu.add(R.string.cancel);
1047 case WebView.HitTestResult.EMAIL_TYPE:
1048 // Get the target URL.
1049 linkUrl = hitTestResult.getExtra();
1051 // Set the target URL as the title of the `ContextMenu`.
1052 menu.setHeaderTitle(linkUrl);
1054 // Add a `Write Email` button.
1055 menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1057 public boolean onMenuItemClick(MenuItem item) {
1058 // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
1059 Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
1061 // Parse the url and set it as the data for the `Intent`.
1062 emailIntent.setData(Uri.parse("mailto:" + linkUrl));
1064 // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
1065 emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1068 startActivity(emailIntent);
1073 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1074 menu.add(R.string.cancel);
1077 // `IMAGE_TYPE` is an image.
1078 case WebView.HitTestResult.IMAGE_TYPE:
1079 // Get the image URL.
1080 imageUrl = hitTestResult.getExtra();
1082 // Set the image URL as the title of the `ContextMenu`.
1083 menu.setHeaderTitle(imageUrl);
1085 // Add a `View Image` button.
1086 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1088 public boolean onMenuItemClick(MenuItem item) {
1089 mainWebView.loadUrl(imageUrl, customHeaders);
1094 // Add a `Download Image` button.
1095 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1097 public boolean onMenuItemClick(MenuItem item) {
1098 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1099 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1100 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1105 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1106 menu.add(R.string.cancel);
1110 // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
1111 case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
1112 // Get the image URL.
1113 imageUrl = hitTestResult.getExtra();
1115 // Set the image URL as the title of the `ContextMenu`.
1116 menu.setHeaderTitle(imageUrl);
1118 // Add a `View Image` button.
1119 menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1121 public boolean onMenuItemClick(MenuItem item) {
1122 mainWebView.loadUrl(imageUrl, customHeaders);
1127 // Add a `Download Image` button.
1128 menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1130 public boolean onMenuItemClick(MenuItem item) {
1131 // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
1132 AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
1133 downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
1138 // Add a `Cancel` button, which by default closes the `ContextMenu`.
1139 menu.add(R.string.cancel);
1145 public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
1146 // Get shortcutNameEditText from the alert dialog.
1147 EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
1149 // Create the bookmark shortcut based on formattedUrlString.
1150 Intent bookmarkShortcut = new Intent();
1151 bookmarkShortcut.setAction(Intent.ACTION_VIEW);
1152 bookmarkShortcut.setData(Uri.parse(formattedUrlString));
1154 // Place the bookmark shortcut on the home screen.
1155 Intent placeBookmarkShortcut = new Intent();
1156 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
1157 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
1158 placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
1159 placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
1160 sendBroadcast(placeBookmarkShortcut);
1164 public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
1165 // Get a handle for the system `DOWNLOAD_SERVICE`.
1166 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1168 // Parse `imageUrl`.
1169 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
1171 // Get the file name from `dialogFragment`.
1172 EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
1173 String imageName = downloadImageNameEditText.getText().toString();
1175 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1176 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
1177 downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
1178 } else { // Only set the title using `imageName`.
1179 downloadRequest.setTitle(imageName);
1182 // Allow `MediaScanner` to index the download if it is a media file.
1183 downloadRequest.allowScanningByMediaScanner();
1185 // Add the URL as the description for the download.
1186 downloadRequest.setDescription(imageUrl);
1188 // Show the download notification after the download is completed.
1189 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1191 // Initiate the download.
1192 downloadManager.enqueue(downloadRequest);
1196 public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
1197 // Get a handle for the system `DOWNLOAD_SERVICE`.
1198 DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
1200 // Parse `downloadUrl`.
1201 DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
1203 // Get the file name from `dialogFragment`.
1204 EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
1205 String fileName = downloadFileNameEditText.getText().toString();
1207 // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
1208 if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `fileName`.
1209 downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
1210 } else { // Only set the title using `fileName`.
1211 downloadRequest.setTitle(fileName);
1214 // Allow `MediaScanner` to index the download if it is a media file.
1215 downloadRequest.allowScanningByMediaScanner();
1217 // Add the URL as the description for the download.
1218 downloadRequest.setDescription(downloadUrl);
1220 // Show the download notification after the download is completed.
1221 downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
1223 // Initiate the download.
1224 downloadManager.enqueue(downloadRequest);
1227 public void viewSslCertificate(View view) {
1228 // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
1229 DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
1230 viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
1234 public void onSslErrorCancel() {
1235 sslErrorHandler.cancel();
1239 public void onSslErrorProceed() {
1240 sslErrorHandler.proceed();
1243 // Override onBackPressed to handle the navigation drawer and mainWebView.
1245 public void onBackPressed() {
1246 final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
1248 // Close the navigation drawer if it is available. GravityCompat.START is the drawer on the left on Left-to-Right layout text.
1249 if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
1250 drawerLayout.closeDrawer(GravityCompat.START);
1252 // Load the previous URL if available.
1253 if (mainWebView.canGoBack()) {
1254 mainWebView.goBack();
1256 // Pass onBackPressed to the system.
1257 super.onBackPressed();
1263 public void onPause() {
1264 // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
1265 BannerAd.pauseAd(adView);
1271 public void onResume() {
1274 // We need to resume the adView for the free flavor.
1275 BannerAd.resumeAd(adView);
1279 public void onRestart() {
1282 // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`.
1285 // Update the privacy icon. `true` runs `invalidateOptionsMenu` as the last step.
1286 updatePrivacyIcons(true);
1290 private void loadUrlFromTextBox() throws UnsupportedEncodingException {
1291 // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string.
1292 String unformattedUrlString = urlTextBox.getText().toString().trim();
1294 URL unformattedUrl = null;
1295 Uri.Builder formattedUri = new Uri.Builder();
1297 // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search.
1298 if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
1299 // Add http:// at the beginning if it is missing. Otherwise the app will segfault.
1300 if (!unformattedUrlString.startsWith("http")) {
1301 unformattedUrlString = "http://" + unformattedUrlString;
1304 // 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.
1306 unformattedUrl = new URL(unformattedUrlString);
1307 } catch (MalformedURLException e) {
1308 e.printStackTrace();
1311 // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
1312 final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
1313 final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
1314 final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
1315 final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
1316 final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
1318 formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
1319 formattedUrlString = formattedUri.build().toString();
1321 // Sanitize the search input and convert it to a DuckDuckGo search.
1322 final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
1324 // Use the correct search URL.
1325 if (javaScriptEnabled) { // JavaScript is enabled.
1326 formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
1327 } else { // JavaScript is disabled.
1328 formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
1332 mainWebView.loadUrl(formattedUrlString, customHeaders);
1334 // Hides the keyboard so we can see the webpage. `0` indicates no additional flags.
1335 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1338 public void findPreviousOnPage(View view) {
1339 // Go to the previous highlighted phrase on the page. `false` goes backwards instead of forwards.
1340 mainWebView.findNext(false);
1343 public void findNextOnPage(View view) {
1344 // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
1345 mainWebView.findNext(true);
1348 public void closeFindOnPage(View view) {
1349 // Delete the contents of `find_on_page_edittext`.
1350 findOnPageEditText.setText(null);
1352 // Clear the highlighted phrases.
1353 mainWebView.clearMatches();
1355 // Hide the Find on Page `RelativeLayout`.
1356 LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
1357 findOnPageLinearLayout.setVisibility(View.GONE);
1359 // Show the URL app bar.
1360 Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
1361 appBarToolbar.setVisibility(View.VISIBLE);
1363 // Hides the keyboard so we can see the webpage. `0` indicates no additional flags.
1364 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
1367 private void applySettings() {
1368 // Get the shared preference values. `this` references the current context.
1369 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
1371 // Store the values from `sharedPreferences` in variables.
1372 String userAgentString = sharedPreferences.getString("user_agent", "Default user agent");
1373 String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
1374 String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
1375 String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
1376 String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
1377 String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
1378 String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
1379 String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
1380 swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
1381 boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true);
1382 boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
1384 // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
1385 if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting.
1386 // Get the values from `sharedPreferences`.
1387 javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
1388 firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
1389 thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
1390 domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
1391 saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
1393 // Apply the default settings.
1394 mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
1395 cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
1396 mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
1397 mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
1398 mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
1400 // Set third-party cookies status if API >= 21.
1401 if (Build.VERSION.SDK_INT >= 21) {
1402 cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
1406 // Apply the other settings from `sharedPreferences`.
1407 homepage = homepageString;
1408 swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
1410 // Set the user agent initial status.
1411 switch (userAgentString) {
1412 case "Default user agent":
1413 // Set the user agent to `""`, which uses the default value.
1414 mainWebView.getSettings().setUserAgentString("");
1417 case "Custom user agent":
1418 // Set the custom user agent.
1419 mainWebView.getSettings().setUserAgentString(customUserAgentString);
1423 // Use the selected user agent.
1424 mainWebView.getSettings().setUserAgentString(userAgentString);
1428 // Set JavaScript disabled search.
1429 if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1430 javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString;
1431 } else { // Use the string from the pre-built list.
1432 javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
1435 // Set JavaScript enabled search.
1436 if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string.
1437 javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString;
1438 } else { // Use the string from the pre-built list.
1439 javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
1442 // Set Do Not Track status.
1443 if (doNotTrackEnabled) {
1444 customHeaders.put("DNT", "1");
1446 customHeaders.remove("DNT");
1449 // Set Orbot proxy status.
1450 if (proxyThroughOrbot) {
1451 // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed.
1452 OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
1453 } else { // Reset the proxy to default. The host is `""` and the port is `"0"`.
1454 OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
1458 private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
1459 // Get handles for the icons.
1460 MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
1461 MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
1462 MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
1463 MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
1465 // Update `privacyIcon`.
1466 if (javaScriptEnabled) { // JavaScript is enabled.
1467 privacyIcon.setIcon(R.drawable.javascript_enabled);
1468 } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled.
1469 privacyIcon.setIcon(R.drawable.warning);
1470 } else { // All the dangerous features are disabled.
1471 privacyIcon.setIcon(R.drawable.privacy_mode);
1474 // Update `firstPartyCookiesIcon`.
1475 if (firstPartyCookiesEnabled) { // First-party cookies are enabled.
1476 firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
1477 } else { // First-party cookies are disabled.
1478 firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
1481 // Update `domStorageIcon`.
1482 if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled.
1483 domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
1484 } else if (javaScriptEnabled) { // JavaScript is enabled but DOM storage is disabled.
1485 domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
1486 } else { // JavaScript is disabled, so DOM storage is ghosted.
1487 domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
1490 // Update `formDataIcon`.
1491 if (saveFormDataEnabled) { // Form data is enabled.
1492 formDataIcon.setIcon(R.drawable.form_data_enabled);
1493 } else { // Form data is disabled.
1494 formDataIcon.setIcon(R.drawable.form_data_disabled);
1497 // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. `this` references the current activity.
1498 if (runInvalidateOptionsMenu) {
1499 ActivityCompat.invalidateOptionsMenu(this);