X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FMainWebViewActivity.java;h=104522b600f0b9f467e539d27dc6a69d29d84bce;hp=8b60b9d31d566eff3670ba4e6b20802b83ff069a;hb=0abf9642763f1af98af73b2fc3cc44752a342db3;hpb=8ce85fd6ab9c2468ae36fab0a18aa9aa88d685ed diff --git a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java index 8b60b9d3..104522b6 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java +++ b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java @@ -21,25 +21,31 @@ package com.stoutner.privacybrowser; import android.annotation.SuppressLint; import android.app.Activity; +import android.app.DialogFragment; import android.app.DownloadManager; import android.content.Intent; 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.SslCertificate; +import android.net.http.SslError; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; +import android.support.annotation.NonNull; import android.support.design.widget.NavigationView; import android.support.design.widget.Snackbar; -import android.support.v4.app.DialogFragment; +import android.support.v4.app.ActivityCompat; +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.support.v7.app.ActionBar; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; -import android.support.v7.app.AppCompatDialogFragment; import android.support.v7.widget.Toolbar; import android.util.Patterns; import android.view.KeyEvent; @@ -49,10 +55,12 @@ import android.view.View; 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 android.webkit.WebViewClient; +import android.webkit.WebViewDatabase; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.ImageView; @@ -62,71 +70,133 @@ import java.io.UnsupportedEncodingException; 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. +public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener, + SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener { + + // `appBar` is public static so it can be accessed from `OrbotProxyHelper`. + // It is also used in `onCreate()`. + public static ActionBar appBar; + + // `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(). - public static WebView mainWebView; - - // 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(). - 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(). - 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(). - public static boolean firstPartyCookiesEnabled; - // 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(). - public static boolean domStorageEnabled; - // 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(). - public static String javaScriptEnabledSearchURL; - // 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(). - public static SwipeRefreshLayout swipeToRefresh; - // swipeToRefreshEnabled is public static so it can be accessed from SettingsFragment. It is also used in onCreate(). - public static boolean swipeToRefreshEnabled; - - // drawerToggle is used in onCreate(), onPostCreate(), onConfigurationChanged(), onNewIntent(), and onNavigationItemSelected(). + + // `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; + + // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`. It is also used in `onCreate()`. + public static SslCertificate sslCertificate; + + + // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, and `loadUrlFromTextBox()`. + private WebView mainWebView; + + // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`. + private SwipeRefreshLayout swipeRefreshLayout; + + // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, and `onRestart()`. + private CookieManager cookieManager; + + // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`. + private final Map customHeaders = new HashMap<>(); + + // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`. + // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`. + private Boolean javaScriptEnabled; + + // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean firstPartyCookiesEnabled; + + // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean thirdPartyCookiesEnabled; + + // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean domStorageEnabled; + + // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`. + private boolean saveFormDataEnabled; + + // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`. + private boolean swipeToRefreshEnabled; + + // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`. + private String homepage; + + // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`. + private String javaScriptDisabledSearchURL; + + // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`. + private String javaScriptEnabledSearchURL; + + // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`. + private Menu mainMenu; + + // `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; - // formattedUrlString is used in onCreate(), onOptionsItemSelected(), onCreateHomeScreenShortcutCreate(), and loadUrlFromTextBox(). - private String formattedUrlString; - // 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") protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); - setContentView(R.layout.coordinator_layout); + setContentView(R.layout.main_coordinatorlayout); // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21. Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar); setSupportActionBar(supportAppBar); + appBar = getSupportActionBar(); + + // This is needed to get rid of the Android Studio warning that appBar might be null. + assert appBar != null; + + // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. + appBar.setCustomView(R.layout.url_bar); + appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); + + // Set the "go" button on the keyboard to load the URL in urlTextBox. + urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox); + urlTextBox.setOnKeyListener(new View.OnKeyListener() { + public boolean onKey(View v, int keyCode, KeyEvent event) { + // If the event is a key-down event on the "enter" button, load the URL. + if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { + // Load the URL into the mainWebView and consume the event. + try { + loadUrlFromTextBox(); + } catch (UnsupportedEncodingException e) { + e.printStackTrace(); + } + // If the enter key was pressed, consume the event. + return true; + } else { + // If any other key was pressed, do not consume the event. + return false; + } + } + }); final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout); - // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21. - final ActionBar appBar = getSupportActionBar(); - // Implement swipe to refresh - swipeToRefresh = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); - assert swipeToRefresh != null; //This assert removes the incorrect warning on the following line that swipeToRefresh might be null. - swipeToRefresh.setColorSchemeResources(R.color.blue); - swipeToRefresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { + swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout); + swipeRefreshLayout.setColorSchemeResources(R.color.blue_700); + swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { mainWebView.reload(); @@ -135,33 +205,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation mainWebView = (WebView) findViewById(R.id.mainWebView); - if (appBar != null) { - // Add the custom url_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. - appBar.setCustomView(R.layout.url_bar); - appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); - - // Set the "go" button on the keyboard to load the URL in urlTextBox. - urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox); - urlTextBox.setOnKeyListener(new View.OnKeyListener() { - public boolean onKey(View v, int keyCode, KeyEvent event) { - // If the event is a key-down event on the "enter" button, load the URL. - if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) { - // Load the URL into the mainWebView and consume the event. - try { - loadUrlFromTextBox(); - } catch (UnsupportedEncodingException e) { - e.printStackTrace(); - } - // If the enter key was pressed, consume the event. - return true; - } else { - // If any other key was pressed, do not consume the event. - return false; - } - } - }); - } - // Create the navigation drawer. drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout); // The DrawerTitle identifies the drawer in accessibility mode. @@ -169,23 +212,44 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Listen for touches on the navigation menu. final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView); - assert navigationView != null; // This assert removes the incorrect warning on the following line that navigationView might be null. navigationView.setNavigationItemSelectedListener(this); // 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); 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. + // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24. + @SuppressWarnings("deprecation") @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. @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { + // 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. + formattedUrlString = url; + + // Display the loading URL is the URL text box. urlTextBox.setText(url); } @@ -198,6 +262,20 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation if (!urlTextBox.hasFocus()) { urlTextBox.setText(formattedUrlString); } + + // Store the SSL certificate so it can be accessed from `ViewSslCertificate`. + sslCertificate = mainWebView.getCertificate(); + } + + // 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)); } }); @@ -205,18 +283,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Update the progress bar when a page is loading. @Override public void onProgressChanged(WebView view, int progress) { - // Make sure that appBar is not null. - if (appBar != null) { - ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar); - progressBar.setProgress(progress); - if (progress < 100) { - progressBar.setVisibility(View.VISIBLE); - } else { - progressBar.setVisibility(View.GONE); + ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar); + progressBar.setProgress(progress); + if (progress < 100) { + progressBar.setVisibility(View.VISIBLE); + } else { + progressBar.setVisibility(View.GONE); - //Stop the SwipeToRefresh indicator if it is running - swipeToRefresh.setRefreshing(false); - } + //Stop the `SwipeToRefresh` indicator if it is running + swipeRefreshLayout.setRefreshing(false); } } @@ -226,22 +301,17 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Save a copy of the favorite icon for use if a shortcut is added to the home screen. favoriteIcon = icon; - // Place the favorite icon in the appBar if it is not null. - if (appBar != null) { - ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon); - imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true)); - } + // Place the favorite icon in the appBar. + ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon); + imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true)); } // Enter full screen video @Override public void onShowCustomView(View view, CustomViewCallback callback) { - if (appBar != null) { - appBar.hide(); - } + appBar.hide(); // Show the fullScreenVideoFrameLayout. - assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.addView(view); fullScreenVideoFrameLayout.setVisibility(View.VISIBLE); @@ -255,26 +325,12 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen. * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them. */ - - // Set the one flag supported by API >= 14. - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION); - - // Set the two flags that are supported by API >= 16. - if (Build.VERSION.SDK_INT >= 16) { - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN); - } - - // Set all three flags that are supported by API >= 19. - if (Build.VERSION.SDK_INT >= 19) { - view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); - } + view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); } // Exit full screen video public void onHideCustomView() { - if (appBar != null) { - appBar.show(); - } + appBar.show(); // Show the mainWebView. mainWebView.setVisibility(View.VISIBLE); @@ -283,7 +339,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation BannerAd.showAd(adView); // Hide the fullScreenVideoFrameLayout. - assert fullScreenVideoFrameLayout != null; //This assert removes the incorrect warning on the following line that fullScreenVideoFrameLayout might be null. fullScreenVideoFrameLayout.removeAllViews(); fullScreenVideoFrameLayout.setVisibility(View.GONE); } @@ -291,21 +346,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Allow the downloading of files. mainWebView.setDownloadListener(new DownloadListener() { - // Launch the Android download manager when a link leads to a download. @Override public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) { - DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); - DownloadManager.Request requestUri = new DownloadManager.Request(Uri.parse(url)); - - // Add the URL as the description for the download. - requestUri.setDescription(url); - - // Show the download notification after the download is completed. - requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); - - // Initiate the download and display a Snackbar. - downloadManager.enqueue(requestUri); - Snackbar.make(findViewById(R.id.mainWebView), R.string.download_started, Snackbar.LENGTH_SHORT).show(); + // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`. + DialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength); + downloadFileDialogFragment.show(getFragmentManager(), getResources().getString(R.string.download)); } }); @@ -315,78 +360,17 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Hide zoom controls. mainWebView.getSettings().setDisplayZoomControls(false); - - // Initialize the default preference values the first time the program is run. - PreferenceManager.setDefaultValues(this, R.xml.preferences, false); - - // Get the shared preference values. - SharedPreferences savedPreferences = PreferenceManager.getDefaultSharedPreferences(this); - - // Set JavaScript initial status. The default value is false. - javaScriptEnabled = savedPreferences.getBoolean("javascript_enabled", false); - mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); - // Initialize cookieManager. cookieManager = CookieManager.getInstance(); - // Set cookies initial status. The default value is false. - firstPartyCookiesEnabled = savedPreferences.getBoolean("first_party_cookies_enabled", false); - cookieManager.setAcceptCookie(firstPartyCookiesEnabled); - - // Set third-party cookies initial status if API >= 21. The default value is false. - if (Build.VERSION.SDK_INT >= 21) { - thirdPartyCookiesEnabled = savedPreferences.getBoolean("third_party_cookies_enabled", false); - cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); - } - - // Set DOM storage initial status. The default value is false. - domStorageEnabled = savedPreferences.getBoolean("dom_storage_enabled", false); - mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); - - // Set the user agent initial status. - String userAgentString = savedPreferences.getString("user_agent", "Default user agent"); - switch (userAgentString) { - case "Default user agent": - // Do nothing. - break; - - case "Custom user agent": - // Set the custom user agent on mainWebView, The default is "PrivacyBrowser/1.0". - mainWebView.getSettings().setUserAgentString(savedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0")); - break; + // 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", ""); - default: - // Set the selected user agent on mainWebView. The default is "PrivacyBrowser/1.0". - mainWebView.getSettings().setUserAgentString(savedPreferences.getString("user_agent", "PrivacyBrowser/1.0")); - break; - } - - // Set the initial string for JavaScript disabled search. - if (savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=").equals("Custom URL")) { - // Get the custom URL string. The default is "". - javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search_custom_url", ""); - } else { - // Use the string from javascript_disabled_search. - javaScriptDisabledSearchURL = savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="); - } - - // Set the initial string for JavaScript enabled search. - if (savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=").equals("Custom URL")) { - // Get the custom URL string. The default is "". - javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search_custom_url", ""); - } else { - // Use the string from javascript_enabled_search. - javaScriptEnabledSearchURL = savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="); - } - - - // Set 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. - swipeToRefreshEnabled = savedPreferences.getBoolean("swipe_to_refresh_enabled", true); - swipeToRefresh.setEnabled(swipeToRefreshEnabled); + // Initialize the default preference values the first time the program is run. + PreferenceManager.setDefaultValues(this, R.xml.preferences, false); + // Apply the settings from the shared preferences. + applySettings(); // Get the intent information that started the app. final Intent intent = getIntent(); @@ -403,7 +387,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } // 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); @@ -413,7 +405,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation @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) { @@ -428,7 +420,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } // 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(); @@ -437,48 +429,130 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation @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. + // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`. mainMenu = menu; - // Initialize privacyIcon - privacyIcon = menu.findItem(R.id.toggleJavaScript); + // Set the initial status of the privacy icons. + updatePrivacyIcons(); - // Get MenuItems for checkable menu items. + // Get handles for the menu items. MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies); MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies); MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); - - // Set the initial status of the privacy icon. - updatePrivacyIcon(); - - // Set the initial status of the menu item checkboxes. - toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled); - toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled); - toggleDomStorage.setChecked(domStorageEnabled); + MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); + + // Only display third-Party Cookies if SDK >= 21 + toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21); + + // Get the shared preference values. `this` references the current context. + SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); + + // Set the status of the additional app bar icons. The default is `false`. + if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) { + toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); + toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); + toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); + } else { //Do not display the additional icons. + toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); + toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); + toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER); + } return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { - // Only enable Third-Party Cookies if SDK >= 21 and First-Party Cookies are enabled. + // Get handles for the menu items. + MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies); MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies); - if ((Build.VERSION.SDK_INT >= 21) && firstPartyCookiesEnabled) { - toggleThirdPartyCookies.setEnabled(true); - } else { - toggleThirdPartyCookies.setEnabled(false); - } + MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); + MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); + MenuItem clearCookies = menu.findItem(R.id.clearCookies); + MenuItem clearFormData = menu.findItem(R.id.clearFormData); + MenuItem refreshMenuItem = menu.findItem(R.id.refresh); + + // Set the status of the menu item checkboxes. + toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled); + toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled); + toggleDomStorage.setChecked(domStorageEnabled); + toggleSaveFormData.setChecked(saveFormDataEnabled); + + // Enable third-party cookies if first-party cookies are enabled. + toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled); + + // Enable DOM Storage if JavaScript is enabled. + toggleDomStorage.setEnabled(javaScriptEnabled); // Enable Clear Cookies if there are any. - MenuItem clearCookies = menu.findItem(R.id.clearCookies); clearCookies.setEnabled(cookieManager.hasCookies()); + // Enable Clear Form Data is there is any. + WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this); + clearFormData.setEnabled(mainWebViewDatabase.hasFormData()); + + // Only show `Refresh` if `swipeToRefresh` is disabled. + refreshMenuItem.setVisible(!swipeToRefreshEnabled); + + // 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); + // Run all the other default commands. super.onPrepareOptionsMenu(menu); - // return true displays the menu. + // `return true` displays the menu. return true; } @@ -500,17 +574,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); // Update the privacy icon. - updatePrivacyIcon(); + updatePrivacyIcons(); - // Display a Snackbar. - if (javaScriptEnabled) { + // Display a `Snackbar`. + if (javaScriptEnabled) { // JavaScrip is enabled. Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show(); - } else { - if (domStorageEnabled || firstPartyCookiesEnabled) { - Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show(); - } else { - Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); - } + } else if (firstPartyCookiesEnabled) { // JavaScript is disabled, but first-party cookies are enabled. + Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show(); + } else { // Privacy mode. + Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); } // Reload the WebView. @@ -528,7 +600,16 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation cookieManager.setAcceptCookie(firstPartyCookiesEnabled); // Update the privacy icon. - updatePrivacyIcon(); + updatePrivacyIcons(); + + // Display a `Snackbar`. + if (firstPartyCookiesEnabled) { // First-party cookies are enabled. + Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show(); + } else if (javaScriptEnabled){ // JavaScript is still enabled. + Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show(); + } else { // Privacy mode. + Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show(); + } // Reload the WebView. mainWebView.reload(); @@ -545,6 +626,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Apply the new cookie status. cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); + // Display a `Snackbar`. + if (thirdPartyCookiesEnabled) { + Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show(); + } else { + Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show(); + } + // Reload the WebView. mainWebView.reload(); } // Else do nothing because SDK < 21. @@ -560,8 +648,33 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Apply the new DOM Storage status. mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); - // Update the privacy icon. - updatePrivacyIcon(); + // Display a `Snackbar`. + if (domStorageEnabled) { + Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show(); + } else { + Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show(); + } + + // Reload the WebView. + mainWebView.reload(); + return true; + + case R.id.toggleSaveFormData: + // Switch the status of saveFormDataEnabled. + saveFormDataEnabled = !saveFormDataEnabled; + + // Update the menu checkbox. + menuItem.setChecked(saveFormDataEnabled); + + // Apply the new form data status. + mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); + + // Display a `Snackbar`. + if (saveFormDataEnabled) { + Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show(); + } else { + Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show(); + } // Reload the WebView. mainWebView.reload(); @@ -582,6 +695,40 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show(); return true; + case R.id.clearFormData: + WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this); + mainWebViewDatabase.clearFormData(); + 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); @@ -591,11 +738,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation return true; case R.id.addToHomescreen: - // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut. - AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut(); - shortcutDialog.show(getSupportFragmentManager(), "createShortcut"); + // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `@string/create_shortcut`. + DialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut(); + createHomeScreenShortcutDialogFragment.show(getFragmentManager(), getResources().getString(R.string.create_shortcut)); - //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below. + //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below. return true; case R.id.refresh: @@ -608,15 +755,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } } - @Override // removeAllCookies is deprecated, but it is required for API < 21. @SuppressWarnings("deprecation") - public boolean onNavigationItemSelected(MenuItem menuItem) { + @Override + public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) { int menuItemId = menuItem.getItemId(); switch (menuItemId) { case R.id.home: - mainWebView.loadUrl(homepage); + mainWebView.loadUrl(homepage, customHeaders); break; case R.id.back: @@ -631,6 +778,12 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation } break; + case R.id.bookmarks: + // Launch BookmarksActivity. + Intent bookmarksIntent = new Intent(this, BookmarksActivity.class); + startActivity(bookmarksIntent); + break; + case R.id.downloads: // Launch the system Download Manager. Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS); @@ -642,22 +795,24 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation 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`. + 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; case R.id.clearAndExit: - // Clear DOM storage. - WebStorage domStorage = WebStorage.getInstance(); - domStorage.deleteAllData(); - // Clear cookies. The commands changed slightly in API 21. if (Build.VERSION.SDK_INT >= 21) { cookieManager.removeAllCookies(null); @@ -665,12 +820,29 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation cookieManager.removeAllCookie(); } + // Clear DOM storage. + WebStorage domStorage = WebStorage.getInstance(); + domStorage.deleteAllData(); + + // Clear form data. + WebViewDatabase formData = WebViewDatabase.getInstance(this); + formData.clearFormData(); + // Clear cache. The argument of "true" includes disk files. mainWebView.clearCache(true); // Clear the back/forward history. mainWebView.clearHistory(); + // Clear any SSL certificate preferences. + mainWebView.clearSslPreferences(); + + // Clear `formattedUrlString`. + formattedUrlString = null; + + // Clear `customHeaders`. + customHeaders.clear(); + // Destroy the internal state of the webview. mainWebView.destroy(); @@ -708,17 +880,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate(). adView = findViewById(R.id.adView); - } - @Override - public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) { - // Do nothing because the user selected "Cancel". + // `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 + invalidateOptionsMenu(); } @Override - public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) { + public void onCreateHomeScreenShortcut(DialogFragment dialogFragment) { // Get shortcutNameEditText from the alert dialog. - EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText); + EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext); // Create the bookmark shortcut based on formattedUrlString. Intent bookmarkShortcut = new Intent(); @@ -734,6 +904,48 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation sendBroadcast(placeBookmarkShortcut); } + @Override + public void onDownloadFile(DialogFragment dialogFragment, String downloadUrl) { + DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE); + DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl)); + + // Get the file name from `dialogFragment`. + EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name); + String fileName = downloadFileNameEditText.getText().toString(); + + // Set the download save in the the `DIRECTORY_DOWNLOADS`using `fileName`. + // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`. + downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName); + + // Allow `MediaScanner` to index the download if it is a media file. + downloadRequest.allowScanningByMediaScanner(); + + // Add the URL as the description for the download. + downloadRequest.setDescription(downloadUrl); + + // Show the download notification after the download is completed. + downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); + + // Initiate the download and display a Snackbar. + downloadManager.enqueue(downloadRequest); + } + + 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() { @@ -744,7 +956,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation drawerLayout.closeDrawer(GravityCompat.START); } else { // Load the previous URL if available. - assert mainWebView != null; //This assert removes the incorrect warning on the following line that mainWebView might be null. if (mainWebView.canGoBack()) { mainWebView.goBack(); } else { @@ -770,9 +981,22 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation BannerAd.resumeAd(adView); } + @Override + public void onRestart() { + super.onRestart(); + + // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`. + applySettings(); + + // Update the privacy icons. + updatePrivacyIcons(); + + } + private void loadUrlFromTextBox() throws UnsupportedEncodingException { - // Get the text from urlTextBox and convert it to a string. - String unformattedUrlString = urlTextBox.getText().toString(); + // Get the text from urlTextBox and convert it to a string. trim() removes white spaces from the beginning and end of the string. + String unformattedUrlString = urlTextBox.getText().toString().trim(); + URL unformattedUrl = null; Uri.Builder formattedUri = new Uri.Builder(); @@ -803,30 +1027,153 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation // Sanitize the search input and convert it to a DuckDuckGo search. final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8"); - // Use the correct search URL based on javaScriptEnabled. - if (javaScriptEnabled) { + // Use the correct search URL. + if (javaScriptEnabled) { // JavaScript is enabled. formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString; } else { // JavaScript is disabled. formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString; } } - mainWebView.loadUrl(formattedUrlString); + mainWebView.loadUrl(formattedUrlString, customHeaders); // Hides the keyboard so we can see the webpage. InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); } - private void updatePrivacyIcon() { - if (javaScriptEnabled) { - privacyIcon.setIcon(R.drawable.javascript_enabled); - } else { - if (domStorageEnabled || firstPartyCookiesEnabled) { - privacyIcon.setIcon(R.drawable.warning); - } else { - privacyIcon.setIcon(R.drawable.privacy_mode); + private void applySettings() { + // Get the shared preference values. `this` references the current context. + SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this); + + // Store the values from `sharedPreferences` in variables. + String userAgentString = sharedPreferences.getString("user_agent", "Default user agent"); + String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0"); + String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="); + String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", ""); + String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="); + String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", ""); + 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); + boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true); + boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false); + + // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs. + if (javaScriptEnabled == null) { // If `javaScriptEnabled` is null the program is just starting. + // Get the values from `sharedPreferences`. + javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false); + firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false); + thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false); + domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false); + saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false); + + // Apply the default settings. + mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled); + cookieManager.setAcceptCookie(firstPartyCookiesEnabled); + mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled); + mainWebView.getSettings().setSaveFormData(saveFormDataEnabled); + mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString)); + + // Set third-party cookies status if API >= 21. + if (Build.VERSION.SDK_INT >= 21) { + cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled); } } + + // Apply the other settings from `sharedPreferences`. + homepage = homepageString; + swipeRefreshLayout.setEnabled(swipeToRefreshEnabled); + + // Set the user agent initial status. + switch (userAgentString) { + case "Default user agent": + // Set the user agent to `""`, which uses the default value. + mainWebView.getSettings().setUserAgentString(""); + break; + + case "Custom user agent": + // Set the custom user agent. + mainWebView.getSettings().setUserAgentString(customUserAgentString); + break; + + default: + // Use the selected user agent. + mainWebView.getSettings().setUserAgentString(userAgentString); + break; + } + + // Set JavaScript disabled search. + if (javaScriptDisabledSearchString.equals("Custom URL")) { // Get the custom URL string. + javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString; + } else { // Use the string from the pre-built list. + javaScriptDisabledSearchURL = javaScriptDisabledSearchString; + } + + // Set JavaScript enabled search. + if (javaScriptEnabledSearchString.equals("Custom URL")) { // Get the custom URL string. + javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString; + } else { // Use the string from the pre-built list. + javaScriptEnabledSearchURL = javaScriptEnabledSearchString; + } + + // Set Do Not Track status. + if (doNotTrackEnabled) { + customHeaders.put("DNT", "1"); + } else { + customHeaders.remove("DNT"); + } + + // Set Orbot proxy status. + if (proxyThroughOrbot) { + // Set the proxy. `this` refers to the current activity where an `AlertDialog` might be displayed. + OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118"); + } else { // Reset the proxy to default. The host is `""` and the port is `"0"`. + OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0"); + } + } + + private void updatePrivacyIcons() { + // Get handles for the icons. + MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript); + MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies); + MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage); + MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData); + + // Update `privacyIcon`. + if (javaScriptEnabled) { // JavaScript is enabled. + privacyIcon.setIcon(R.drawable.javascript_enabled); + } else if (firstPartyCookiesEnabled) { // JavaScript is disabled but cookies are enabled. + privacyIcon.setIcon(R.drawable.warning); + } else { // All the dangerous features are disabled. + privacyIcon.setIcon(R.drawable.privacy_mode); + } + + // Update `firstPartyCookiesIcon`. + if (firstPartyCookiesEnabled) { // First-party cookies are enabled. + firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled); + } else { // First-party cookies are disabled. + firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled); + } + + // Update `domStorageIcon`. + if (javaScriptEnabled && domStorageEnabled) { // Both JavaScript and DOM storage are enabled. + domStorageIcon.setIcon(R.drawable.dom_storage_enabled); + } else if (javaScriptEnabled){ // JavaScript is enabled but DOM storage is disabled. + domStorageIcon.setIcon(R.drawable.dom_storage_disabled); + } else { // JavaScript is disabled, so DOM storage is ghosted. + domStorageIcon.setIcon(R.drawable.dom_storage_ghosted); + } + + // Update `formDataIcon`. + if (saveFormDataEnabled) { // Form data is enabled. + formDataIcon.setIcon(R.drawable.form_data_enabled); + } else { // Form data is disabled. + formDataIcon.setIcon(R.drawable.form_data_disabled); + } + + // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`. + // `this` references the current activity. + ActivityCompat.invalidateOptionsMenu(this); } }