import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.graphics.Bitmap;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
import android.net.Uri;
+import android.net.http.SslError;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.design.widget.NavigationView;
import android.support.design.widget.Snackbar;
+import android.support.v4.content.ContextCompat;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.inputmethod.InputMethodManager;
import android.webkit.CookieManager;
import android.webkit.DownloadListener;
+import android.webkit.SslErrorHandler;
import android.webkit.WebChromeClient;
import android.webkit.WebStorage;
import android.webkit.WebView;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
+import java.util.HashMap;
+import java.util.Map;
// We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
-public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener {
- // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut and BookmarksActivity.
- // It is also used in onCreate() and onCreateHomeScreenShortcutCreate().
+public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener, SslCertificateError.SslCertificateErrorListener {
+ // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`.
+ // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
public static Bitmap favoriteIcon;
- // mainWebView is public static so it can be accessed from SettingsFragment.
- // It is also used in onCreate(), onOptionsItemSelected(), onNavigationItemSelected(), and loadUrlFromTextBox().
+ // `mainWebView` is public static so it can be accessed from `SettingsFragment`.
+ // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, and `loadUrlFromTextBox()`.
public static WebView mainWebView;
- // formattedUrlString is public static so it can be accessed from BookmarksActivity.
- // It is also used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox().
+ // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`.
+ // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
public static String formattedUrlString;
- // mainMenu is public static so it can be accessed from SettingsFragment. It is also used in onCreateOptionsMenu() and onOptionsItemSelected().
+ // `mainMenu` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreateOptionsMenu()` and `onOptionsItemSelected()`.
public static Menu mainMenu;
- // cookieManager is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onOptionsItemSelected(), and onNavigationItemSelected().
+ // `cookieManager` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`.
public static CookieManager cookieManager;
- // javaScriptEnabled is public static so it can be accessed from SettingsFragment.
- // It is also used in onCreate(), onCreateOptionsMenu(), onOptionsItemSelected(), and loadUrlFromTextBox().
+ // `javaScriptEnabled` is public static so it can be accessed from `SettingsFragment`.
+ // It is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
public static boolean javaScriptEnabled;
- // firstPartyCookiesEnabled is public static so it can be accessed from SettingsFragment.
- // It is also used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
+ // `firstPartyCookiesEnabled` is public static so it can be accessed from `SettingsFragment`.
+ // It is also used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, and `onOptionsItemSelected()`.
public static boolean firstPartyCookiesEnabled;
- // thirdPartyCookiesEnabled is used in onCreate(), onCreateOptionsMenu(), onPrepareOptionsMenu(), and onOptionsItemSelected().
+ // `thirdPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, and `onOptionsItemSelected()`.
public static boolean thirdPartyCookiesEnabled;
- // domStorageEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected().
+ // `domStorageEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `onOptionsItemSelected()`.
public static boolean domStorageEnabled;
- // saveFormDataEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(), onCreateOptionsMenu(), and onOptionsItemSelected().
+ // `saveFormDataEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `onOptionsItemSelected()`.
public static boolean saveFormDataEnabled;
- // javaScriptDisabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
+ // `javaScriptDisabledSearchURL` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `loadURLFromTextBox()`.
public static String javaScriptDisabledSearchURL;
- // javaScriptEnabledSearchURL is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and loadURLFromTextBox().
+ // `javaScriptEnabledSearchURL` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `loadURLFromTextBox()`.
public static String javaScriptEnabledSearchURL;
- // homepage is public static so it can be accessed from SettingsFragment. It is also used in onCreate() and onOptionsItemSelected().
+ // `homepage` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()` and `onOptionsItemSelected()`.
public static String homepage;
- // swipeToRefresh is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
+ // `swipeToRefresh` is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
public static SwipeRefreshLayout swipeToRefresh;
- // swipeToRefreshEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate().
+ // `swipeToRefreshEnabled` is public static so it can be accessed from `SettingsFragment`. It is also used in `onCreate()`.
public static boolean swipeToRefreshEnabled;
+ // `customHeader` is public static so it can be accessed from `BookmarksActivity`. It is also used in `onCreate()` and `loadUrlFromTextBox()`.
+ public static Map<String, String> customHeaders = new HashMap<String, String>();
- // drawerToggle is used in onCreate(), onPostCreate(), onConfigurationChanged(), onNewIntent(), and onNavigationItemSelected().
+
+ // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
private ActionBarDrawerToggle drawerToggle;
- // drawerLayout is used in onCreate(), onNewIntent(), and onBackPressed().
+ // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
private DrawerLayout drawerLayout;
- // privacyIcon is used in onCreateOptionsMenu() and updatePrivacyIcon().
+ // `privacyIcon` is used in `onCreateOptionsMenu()` and `updatePrivacyIcon()`.
private MenuItem privacyIcon;
- // urlTextBox is used in onCreate(), onOptionsItemSelected(), and loadUrlFromTextBox().
+ // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
private EditText urlTextBox;
- // adView is used in onCreate() and onConfigurationChanged().
+ // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
private View adView;
+ // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
+ private SslErrorHandler sslErrorHandler;
+
@Override
// Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. The whole premise of Privacy Browser is built around an understanding of these dangers.
@SuppressLint("SetJavaScriptEnabled")
// drawerToggle creates the hamburger icon at the start of the AppBar.
drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
+ // 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).
+ customHeaders.put("X-Requested-With", "");
+
mainWebView.setWebViewClient(new WebViewClient() {
- // shouldOverrideUrlLoading makes this WebView the default handler for URLs inside the app, so that links are not kicked out to other apps.
+ // shouldOverrideUrlLoading makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
- mainWebView.loadUrl(url);
- return true;
+ // Use an external email program if the link begins with "mailto:".
+ if (url.startsWith("mailto:")) {
+ // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
+ Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
+
+ // Parse the url and set it as the data for the `Intent`.
+ emailIntent.setData(Uri.parse(url));
+
+ // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
+ emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+ // Make it so.
+ startActivity(emailIntent);
+ return true;
+ } else { // Load the URL in Privacy Browser.
+ mainWebView.loadUrl(url, customHeaders);
+ return true;
+ }
}
// Update the URL in urlTextBox when the page starts to load.
urlTextBox.setText(formattedUrlString);
}
}
+
+ // Handle SSL Certificate errors.
+ @Override
+ public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
+ // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
+ sslErrorHandler = handler;
+
+ // Display the SSL error `AlertDialog`.
+ DialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
+ sslCertificateErrorDialogFragment.show(getFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
+ }
});
mainWebView.setWebChromeClient(new WebChromeClient() {
}
- // Set homepage initial status. The default value is "https://www.duckduckgo.com".
+ // Set the homepage initial status. The default value is `https://www.duckduckgo.com`.
homepage = savedPreferences.getString("homepage", "https://www.duckduckgo.com");
- // Set swipe to refresh initial status. The default is true.
+ // Set the font size initial status. the default value is `100`.
+ String defaultFontSizeString = savedPreferences.getString("default_font_size", "100");
+ mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
+
+ // Set the swipe to refresh initial status. The default is `true`.
swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true);
swipeToRefresh.setEnabled(swipeToRefreshEnabled);
}
// Load the initial website.
- mainWebView.loadUrl(formattedUrlString);
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
+
+ // If the favorite icon is null, load the default.
+ if (favoriteIcon == null) {
+ // We have to use `ContextCompat` until API >= 21.
+ Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
+ BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
+ favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
+ }
// Initialize AdView for the free flavor and request an ad. If this is not the free flavor BannerAd.requestAd() does nothing.
adView = findViewById(R.id.adView);
@Override
protected void onNewIntent(Intent intent) {
- // Sets the new intent as the activity intent, so that any future getIntent()s pick up this one instead of creating a new activity.
+ // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
setIntent(intent);
if (intent.getData() != null) {
}
// Load the website.
- mainWebView.loadUrl(formattedUrlString);
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
// Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
mainWebView.requestFocus();
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.menu_options, menu);
+ getMenuInflater().inflate(R.menu.webview_options_menu, menu);
// Set mainMenu so it can be used by onOptionsItemSelected.
mainMenu = menu;
// Initialize privacyIcon
privacyIcon = menu.findItem(R.id.toggleJavaScript);
+ // Set the initial status of the privacy icon.
+ updatePrivacyIcon();
+
// Get MenuItems for checkable menu items.
MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
- // Set the initial status of the privacy icon.
- updatePrivacyIcon();
-
// Set the initial status of the menu item checkboxes.
toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
+ // Initialize font size variables.
+ int fontSize = mainWebView.getSettings().getTextZoom();
+ String fontSizeTitle;
+ MenuItem selectedFontSizeMenuItem;
+
+ // Prepare the font size title and current size menu item.
+ switch (fontSize) {
+ case 50:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
+ break;
+
+ case 75:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
+ break;
+
+ case 100:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
+ break;
+
+ case 125:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
+ break;
+
+ case 150:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
+ break;
+
+ case 175:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
+ break;
+
+ case 200:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
+ break;
+
+ default:
+ fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
+ selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
+ break;
+ }
+
+ // Set the font size title and select the current size menu item.
+ MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
+ fontSizeMenuItem.setTitle(fontSizeTitle);
+ selectedFontSizeMenuItem.setChecked(true);
+
+ // Only show `Refresh` if `swipeToRefresh` is disabled.
+ MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
+ refreshMenuItem.setVisible(!swipeToRefreshEnabled);
+
// Run all the other default commands.
super.onPrepareOptionsMenu(menu);
- // return true displays the menu.
+ // `return true` displays the menu.
return true;
}
mainWebView.reload();
return true;
+ case R.id.fontSizeFiftyPercent:
+ mainWebView.getSettings().setTextZoom(50);
+ return true;
+
+ case R.id.fontSizeSeventyFivePercent:
+ mainWebView.getSettings().setTextZoom(75);
+ return true;
+
+ case R.id.fontSizeOneHundredPercent:
+ mainWebView.getSettings().setTextZoom(100);
+ return true;
+
+ case R.id.fontSizeOneHundredTwentyFivePercent:
+ mainWebView.getSettings().setTextZoom(125);
+ return true;
+
+ case R.id.fontSizeOneHundredFiftyPercent:
+ mainWebView.getSettings().setTextZoom(150);
+ return true;
+
+ case R.id.fontSizeOneHundredSeventyFivePercent:
+ mainWebView.getSettings().setTextZoom(175);
+ return true;
+
+ case R.id.fontSizeTwoHundredPercent:
+ mainWebView.getSettings().setTextZoom(200);
+ return true;
+
case R.id.share:
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
return true;
case R.id.addToHomescreen:
- // Show the CreateHomeScreenShortcut AlertDialog and name this instance "@string/create_shortcut".
+ // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`.
DialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
- createHomeScreenShortcutDialogFragment.show(getFragmentManager(), "@string/create_shortcut");
+ createHomeScreenShortcutDialogFragment.show(getFragmentManager(), getResources().getString(R.string.create_shortcut));
//Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below.
return true;
switch (menuItemId) {
case R.id.home:
- mainWebView.loadUrl(homepage);
+ mainWebView.loadUrl(homepage, customHeaders);
break;
case R.id.back:
break;
case R.id.settings:
- // Launch SettingsActivity.
+ // Launch `SettingsActivity`.
Intent settingsIntent = new Intent(this, SettingsActivity.class);
startActivity(settingsIntent);
break;
case R.id.guide:
- // Launch GuideActivity.
+ // Launch `GuideActivity`.
Intent guideIntent = new Intent(this, GuideActivity.class);
startActivity(guideIntent);
break;
case R.id.about:
- // Launch AboutActivity.
+ // Launch `AboutActivity`.
Intent aboutIntent = new Intent(this, AboutActivity.class);
startActivity(aboutIntent);
break;
// Clear the back/forward history.
mainWebView.clearHistory();
+ // Clear any SSL certificate preferences.
+ MainWebViewActivity.mainWebView.clearSslPreferences();
+
+ // Clear `formattedUrlString`.
+ formattedUrlString = null;
+
// Destroy the internal state of the webview.
mainWebView.destroy();
}
@Override
- public void onCreateHomeScreenShortcutCancel(DialogFragment dialogFragment) {
+ public void onCancelCreateHomeScreenShortcut(DialogFragment dialogFragment) {
// Do nothing because the user selected "Cancel".
}
@Override
- public void onCreateHomeScreenShortcutCreate(DialogFragment dialogFragment) {
+ public void onCreateHomeScreenShortcut(DialogFragment dialogFragment) {
// Get shortcutNameEditText from the alert dialog.
EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
sendBroadcast(placeBookmarkShortcut);
}
+ public void viewSslCertificate(View view) {
+ // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
+ DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
+ viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
+ }
+
+ @Override
+ public void onSslErrorCancel() {
+ sslErrorHandler.cancel();
+ }
+
+ @Override
+ public void onSslErrorProceed() {
+ sslErrorHandler.proceed();
+ }
+
// Override onBackPressed to handle the navigation drawer and mainWebView.
@Override
public void onBackPressed() {
}
}
- mainWebView.loadUrl(formattedUrlString);
+ mainWebView.loadUrl(formattedUrlString, customHeaders);
// Hides the keyboard so we can see the webpage.
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);