X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Factivities%2FMainWebView.java;h=b9c2746a828aa923e24178784fc8a16afa786345;hb=c3c399fcc6ada5f970e3d75102ad8e61303903a0;hp=345a7060a99a1addc522b33f4c8e8c1782b21794;hpb=f53f9266d055030230e9fc55a7a921891bfd384c;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebView.java b/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebView.java index 345a7060..b9c2746a 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebView.java +++ b/app/src/main/java/com/stoutner/privacybrowser/activities/MainWebView.java @@ -70,6 +70,7 @@ import android.webkit.DownloadListener; import android.webkit.SslErrorHandler; import android.webkit.WebBackForwardList; import android.webkit.WebChromeClient; +import android.webkit.WebResourceResponse; import android.webkit.WebStorage; import android.webkit.WebView; import android.webkit.WebViewClient; @@ -93,12 +94,18 @@ import com.stoutner.privacybrowser.dialogs.SslCertificateError; import com.stoutner.privacybrowser.dialogs.UrlHistory; import com.stoutner.privacybrowser.dialogs.ViewSslCertificate; +import java.io.BufferedReader; +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; import java.util.HashMap; +import java.util.HashSet; import java.util.Map; +import java.util.Set; // We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21. public class MainWebView extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener, @@ -170,6 +177,9 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`. private String javaScriptEnabledSearchURL; + // `adBlockerEnabled` is used in `onCreate()` and `applySettings()`. + private boolean adBlockerEnabled; + // `fullScreenBrowsingModeEnabled` is used in `onCreate()` and `applySettings()`. private boolean fullScreenBrowsingModeEnabled; @@ -209,6 +219,9 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`. private InputMethodManager inputMethodManager; + // `mainWebViewRelativeLayout` is used in `onCreate()` and `onNavigationItemSelected()`. + private RelativeLayout mainWebViewRelativeLayout; + @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") @@ -256,6 +269,7 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN // Get handles for views that need to be accessed. drawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout); rootCoordinatorLayout = (CoordinatorLayout) findViewById(R.id.root_coordinatorlayout); + mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.main_webview_relativelayout); mainWebView = (WebView) findViewById(R.id.mainWebView); findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout); findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext); @@ -287,10 +301,10 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command. drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN); - /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen. - * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen. - * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown. - */ + /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen. + * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen. + * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically rehides them after they are shown. + */ rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); // Set `rootCoordinatorLayout` to fill the whole screen. @@ -455,6 +469,28 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN // drawerToggle creates the hamburger icon at the start of the AppBar. drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation_drawer, R.string.close_navigation_drawer); + // Initialize `adServerSet`. + final Set adServersSet = new HashSet<>(); + + // Load the list of ad servers into memory. + try { + // Load `pgl.yoyo.org_adservers.txt` into a `BufferedReader`. + BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(getAssets().open("pgl.yoyo.org_adservers.txt"))); + + // Create a string for storing each ad server. + String adServer; + + // Populate `adServersSet`. + while ((adServer = bufferedReader.readLine()) != null) { + adServersSet.add(adServer); + } + + // Close `bufferedReader`. + bufferedReader.close(); + } catch (IOException ioException) { + // We're pretty sure the asset exists, so we don't need to worry about the `IOException` ever being thrown. + } + 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. // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24. @@ -481,6 +517,41 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN } } + // Block ads. We have to use the deprecated `shouldInterceptRequest` until minimum API >= 21. + @SuppressWarnings("deprecation") + @Override + public WebResourceResponse shouldInterceptRequest(WebView view, String url){ + if (adBlockerEnabled) { // Block ads. + // Extract the host from `url`. + Uri requestUri = Uri.parse(url); + String requestHost = requestUri.getHost(); + + // Create a variable to track if this is an ad server. + boolean requestHostIsAdServer = false; + + // Check all the subdomains of `requestHost`. + while (requestHost.contains(".")) { + if (adServersSet.contains(requestHost)) { + requestHostIsAdServer = true; + } + + // Strip out the lowest subdomain of `requestHost`. + requestHost = requestHost.substring(requestHost.indexOf(".") + 1); + } + + if (requestHostIsAdServer) { // It is an ad server. + // Return an empty `WebResourceResponse`. + return new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes())); + } else { // It is not an ad server. + // `return null` loads the requested resource. + return null; + } + } else { // Ad blocking is disabled. + // `return null` loads the requested resource. + return null; + } + } + // Update the URL in urlTextBox when the page starts to load. @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { @@ -1150,7 +1221,6 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN customHeaders.clear(); // Detach all views from `mainWebViewRelativeLayout`. - RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout); mainWebViewRelativeLayout.removeAllViews(); // Destroy the internal state of `mainWebView`. @@ -1645,6 +1715,7 @@ public class MainWebView extends AppCompatActivity implements NavigationView.OnN String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com"); String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100"); swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false); + adBlockerEnabled = sharedPreferences.getBoolean("block_ads", true); boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true); boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false); fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("enable_full_screen_browsing_mode", false);