X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FWebview.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2FWebview.java;h=0000000000000000000000000000000000000000;hb=e90fe1c8be4ede280e8f9e4b17710330f11f9355;hp=53311f7adb6f5c51e9c8a86193a74ee2e4d3bc2f;hpb=dcc9119811a9eed34df55da205c55c3092c262a4;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/Webview.java b/app/src/main/java/com/stoutner/privacybrowser/Webview.java deleted file mode 100644 index 53311f7a..00000000 --- a/app/src/main/java/com/stoutner/privacybrowser/Webview.java +++ /dev/null @@ -1,637 +0,0 @@ -/** - * Copyright 2015-2016 Soren Stoutner . - * - * This file is part of Privacy Browser. - * - * Privacy Browser is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * Privacy Browser is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Privacy Browser. If not, see . - */ - -package com.stoutner.privacybrowser; - -import android.annotation.SuppressLint; -import android.annotation.TargetApi; -import android.app.Activity; -import android.app.DownloadManager; -import android.content.ClipData; -import android.content.ClipboardManager; -import android.content.Context; -import android.content.Intent; -import android.graphics.Bitmap; -import android.net.Uri; -import android.os.Build; -import android.os.Bundle; -import android.support.v4.app.DialogFragment; -import android.support.v7.app.ActionBar; -import android.support.v7.app.AppCompatActivity; -import android.support.v7.app.AppCompatDialogFragment; -import android.util.Patterns; -import android.view.KeyEvent; -import android.view.Menu; -import android.view.MenuItem; -import android.view.View; -import android.view.inputmethod.InputMethodManager; -import android.webkit.CookieManager; -import android.webkit.DownloadListener; -import android.webkit.WebChromeClient; -import android.webkit.WebStorage; -import android.webkit.WebView; -import android.webkit.WebViewClient; -import android.widget.EditText; -import android.widget.FrameLayout; -import android.widget.ImageView; -import android.widget.ProgressBar; -import android.widget.Toast; -import java.io.UnsupportedEncodingException; -import java.net.MalformedURLException; -import java.net.URL; -import java.net.URLEncoder; - -public class Webview extends AppCompatActivity implements CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener { - // favoriteIcon is public static so it can be accessed from CreateHomeScreenShortcut. - public static Bitmap favoriteIcon; - - // mainWebView is used in onCreate and onOptionsItemSelected. - private WebView mainWebView; - // formattedUrlString is used in onCreate, onOptionsItemSelected, onCreateHomeScreenShortcutCreate, and loadUrlFromTextBox. - private String formattedUrlString; - // homepage is used in onCreate and onOptionsItemSelected. - private String homepage = "https://www.duckduckgo.com/"; - // enableJavaScript is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. - private boolean enableJavaScript; - // enableDomStorage is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. - private boolean enableDomStorage; - - /* enableSaveFormData does nothing until database storage is implemented. - // enableSaveFormData is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. - private boolean enableSaveFormData; - */ - - // cookieManager is used in onCreate and onOptionsItemSelected. - private CookieManager cookieManager; - // enableCookies is used in onCreate, onCreateOptionsMenu, and onOptionsItemSelected. - private boolean enableCookies; - - // actionBar is used in onCreate and onOptionsItemSelected. - private ActionBar actionBar; - - @Override - // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. - @SuppressLint("SetJavaScriptEnabled") - protected void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - setContentView(R.layout.activity_webview); - - final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout); - final Activity mainWebViewActivity = this; - - mainWebView = (WebView) findViewById(R.id.mainWebView); - actionBar = getSupportActionBar(); - - if (actionBar != null) { - // Remove the title from the action bar. - actionBar.setDisplayShowTitleEnabled(false); - - // Add the custom app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar. - actionBar.setCustomView(R.layout.app_bar); - actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM); - - // Set the "go" button on the keyboard to load the URL in urlTextBox. - EditText urlTextBox = (EditText) actionBar.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; - } - } - }); - } - - 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. - @Override - public boolean shouldOverrideUrlLoading(WebView view, String url) { - mainWebView.loadUrl(url); - return true; - } - - /* These errors do not provide any useful information and clutter the screen. - public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) { - Toast.makeText(mainWebViewActivity, "Error loading " + request + " Error: " + error, Toast.LENGTH_SHORT).show(); - } - */ - - // Update the URL in urlTextBox when the page starts to load. - @Override - public void onPageStarted(WebView view, String url, Bitmap favicon) { - if (actionBar != null) { - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - urlTextBox.setText(url); - } - } - - // Update formattedUrlString and urlTextBox. It is necessary to do this after the page finishes loading because the final URL can change during load. - @Override - public void onPageFinished(WebView view, String url) { - formattedUrlString = url; - - if (actionBar != null) { - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - urlTextBox.setText(formattedUrlString); - } - } - }); - - mainWebView.setWebChromeClient(new WebChromeClient() { - // Update the progress bar when a page is loading. - @Override - public void onProgressChanged(WebView view, int progress) { - // Make sure that actionBar is not null. - if (actionBar != null) { - ProgressBar progressBar = (ProgressBar) actionBar.getCustomView().findViewById(R.id.progressBar); - progressBar.setProgress(progress); - if (progress < 100) { - progressBar.setVisibility(View.VISIBLE); - } else { - progressBar.setVisibility(View.GONE); - } - } - } - - // Set the favorite icon when it changes. - @Override - public void onReceivedIcon(WebView view, Bitmap icon) { - // 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 actionBar if it is not null. - if (actionBar != null) { - ImageView imageViewFavoriteIcon = (ImageView) actionBar.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 (getSupportActionBar() != null) { - getSupportActionBar().hide(); - } - - fullScreenVideoFrameLayout.addView(view); - fullScreenVideoFrameLayout.setVisibility(View.VISIBLE); - - mainWebView.setVisibility(View.GONE); - - /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen. - ** 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. - if (Build.VERSION.SDK_INT >= 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); - } - } - - // Exit full screen video - public void onHideCustomView() { - if (getSupportActionBar() != null) { - getSupportActionBar().show(); - } - - mainWebView.setVisibility(View.VISIBLE); - - fullScreenVideoFrameLayout.removeAllViews(); - fullScreenVideoFrameLayout.setVisibility(View.GONE); - } - }); - - // 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 if the API is 11 or greater. - if (Build.VERSION.SDK_INT >= 11) { - requestUri.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); - } - - downloadManager.enqueue(requestUri); - Toast.makeText(mainWebViewActivity, "Download started", Toast.LENGTH_SHORT).show(); - } - }); - - // Allow pinch to zoom. - mainWebView.getSettings().setBuiltInZoomControls(true); - - // Hide zoom controls if the API is 11 or greater. - if (Build.VERSION.SDK_INT >= 11) { - mainWebView.getSettings().setDisplayZoomControls(false); - } - - // Set JavaScript initial status. - enableJavaScript = false; - mainWebView.getSettings().setJavaScriptEnabled(enableJavaScript); - - // Set DOM Storage initial status. - enableDomStorage = false; - mainWebView.getSettings().setDomStorageEnabled(enableDomStorage); - - /* Save Form Data does nothing until database storage is implemented. - // Set Save Form Data initial status. - enableSaveFormData = true; - mainWebView.getSettings().setSaveFormData(enableSaveFormData); - */ - - // Set Cookies initial status. - enableCookies = false; - cookieManager = CookieManager.getInstance(); - cookieManager.setAcceptCookie(enableCookies); - - // Get the intent information that started the app. - final Intent intent = getIntent(); - - if (intent.getData() != null) { - // Get the intent data and convert it to a string. - final Uri intentUriData = intent.getData(); - formattedUrlString = intentUriData.toString(); - } - - // If formattedUrlString is null assign the homepage to it. - if (formattedUrlString == null) { - formattedUrlString = homepage; - } - - // Load the initial website. - mainWebView.loadUrl(formattedUrlString); - } - - @Override - protected void onNewIntent(Intent intent) { - // Sets the new intent as the activity intent, so that any future getIntent() picks up this one. - setIntent(intent); - - if (intent.getData() != null) { - // Get the intent data and convert it to a string. - final Uri intentUriData = intent.getData(); - formattedUrlString = intentUriData.toString(); - } - - // Load the website. - mainWebView.loadUrl(formattedUrlString); - } - - @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_webview, menu); - - // Get MenuItems for checkable menu items. - MenuItem toggleJavaScript = menu.findItem(R.id.toggleJavaScript); - MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage); - /* toggleSaveFormData does nothing until database storage is implemented. - MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData); - */ - MenuItem toggleCookies = menu.findItem(R.id.toggleCookies); - - // Set the initial status of the menu item checkboxes. - toggleJavaScript.setChecked(enableJavaScript); - toggleDomStorage.setChecked(enableDomStorage); - /* toggleSaveFormData does nothing until database storage is implemented. - toggleSaveFormData.setChecked(enableSaveFormData); - */ - toggleCookies.setChecked(enableCookies); - - return true; - } - - @Override - public boolean onPrepareOptionsMenu(Menu menu) { - // Enable Clear Cookies if there are any. - MenuItem clearCookies = menu.findItem(R.id.clearCookies); - clearCookies.setEnabled(cookieManager.hasCookies()); - - // Enable Back if canGoBack(). - MenuItem back = menu.findItem(R.id.back); - back.setEnabled(mainWebView.canGoBack()); - - // Enable forward if canGoForward(). - MenuItem forward = menu.findItem(R.id.forward); - forward.setEnabled(mainWebView.canGoForward()); - - // Run all the other default commands. - super.onPrepareOptionsMenu(menu); - - // return true displays the menu. - return true; - } - - @Override - // @TargetApi(11) turns off the errors regarding copy and paste, which are removed from view in menu_webview.xml for lower version of Android. - @TargetApi(11) - // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled. - @SuppressLint("SetJavaScriptEnabled") - // removeAllCookies is deprecated, but it is required for API < 21. - @SuppressWarnings("deprecation") - public boolean onOptionsItemSelected(MenuItem menuItem) { - int menuItemId = menuItem.getItemId(); - ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE); - - // Sets the commands that relate to the menu entries. - switch (menuItemId) { - case R.id.toggleJavaScript: - if (enableJavaScript) { - enableJavaScript = false; - menuItem.setChecked(false); - mainWebView.getSettings().setJavaScriptEnabled(false); - mainWebView.reload(); - } else { - enableJavaScript = true; - menuItem.setChecked(true); - mainWebView.getSettings().setJavaScriptEnabled(true); - mainWebView.reload(); - } - return true; - - case R.id.toggleDomStorage: - if (enableDomStorage) { - enableDomStorage = false; - menuItem.setChecked(false); - mainWebView.getSettings().setDomStorageEnabled(false); - mainWebView.reload(); - } else { - enableDomStorage = true; - menuItem.setChecked(true); - mainWebView.getSettings().setDomStorageEnabled(true); - mainWebView.reload(); - } - return true; - - /* toggleSaveFormData does nothing until database storage is implemented. - case R.id.toggleSaveFormData: - if (enableSaveFormData) { - enableSaveFormData = false; - menuItem.setChecked(false); - mainWebView.getSettings().setSaveFormData(false); - mainWebView.reload(); - } else { - enableSaveFormData = true; - menuItem.setChecked(true); - mainWebView.getSettings().setSaveFormData(true); - mainWebView.reload(); - } - return true; - */ - - case R.id.toggleCookies: - if (enableCookies) { - enableCookies = false; - menuItem.setChecked(false); - cookieManager.setAcceptCookie(false); - mainWebView.reload(); - } else { - enableCookies = true; - menuItem.setChecked(true); - cookieManager.setAcceptCookie(true); - mainWebView.reload(); - } - return true; - - case R.id.clearDomStorage: - WebStorage webStorage = WebStorage.getInstance(); - webStorage.deleteAllData(); - Toast.makeText(getApplicationContext(), "DOM storage deleted", Toast.LENGTH_SHORT).show(); - return true; - - case R.id.clearCookies: - if (Build.VERSION.SDK_INT < 21) { - cookieManager.removeAllCookie(); - } else { - cookieManager.removeAllCookies(null); - } - Toast.makeText(getApplicationContext(), "Cookies deleted", Toast.LENGTH_SHORT).show(); - return true; - - case R.id.home: - mainWebView.loadUrl(homepage); - return true; - - case R.id.refresh: - mainWebView.reload(); - return true; - - case R.id.back: - mainWebView.goBack(); - return true; - - case R.id.forward: - mainWebView.goForward(); - return true; - - case R.id.copyURL: - // Make sure that actionBar is not null. - if (actionBar != null) { - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - clipboard.setPrimaryClip(ClipData.newPlainText("URL", urlTextBox.getText())); - } - return true; - - case R.id.pasteURL: - // Make sure that actionBar is not null. - if (actionBar != null) { - ClipData.Item clipboardData = clipboard.getPrimaryClip().getItemAt(0); - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - urlTextBox.setText(clipboardData.coerceToText(this)); - try { - loadUrlFromTextBox(); - } catch (UnsupportedEncodingException e) { - e.printStackTrace(); - } - } - return true; - - case R.id.shareURL: - // Make sure that actionBar is not null. - if (actionBar != null) { - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - Intent shareIntent = new Intent(); - shareIntent.setAction(Intent.ACTION_SEND); - shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString()); - shareIntent.setType("text/plain"); - startActivity(Intent.createChooser(shareIntent, "Share URL")); - } - return true; - - case R.id.addToHomescreen: - // Show the CreateHomeScreenShortcut AlertDialog and name this instance createShortcut. - AppCompatDialogFragment shortcutDialog = new CreateHomeScreenShortcut(); - shortcutDialog.show(getSupportFragmentManager(), "createShortcut"); - - //Everything else will be handled by CreateHomeScreenShortcut and the associated listeners below. - return true; - - case R.id.downloads: - // Launch the system Download Manager. - Intent downloadManangerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS); - - // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list. - downloadManangerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); - - startActivity(downloadManangerIntent); - return true; - - case R.id.about: - // Show the AboutDialog AlertDialog and name this instance aboutDialog. - AppCompatDialogFragment aboutDialog = new AboutDialog(); - aboutDialog.show(getSupportFragmentManager(), "aboutDialog"); - return true; - - case R.id.exit: - // Clear DOM storage. - WebStorage domStorage = WebStorage.getInstance(); - domStorage.deleteAllData(); - - // Clear cookies. - if (Build.VERSION.SDK_INT < 21) { - cookieManager.removeAllCookie(); - } else { - cookieManager.removeAllCookies(null); - } - - // Destroy the internal state of the webview. - mainWebView.destroy(); - - // Close Privacy Browser. - finish(); - return true; - - default: - return super.onOptionsItemSelected(menuItem); - } - } - - @Override - public void onCreateHomeScreenShortcutCancel(DialogFragment dialog) { - // Do nothing because the user selected "Cancel". - } - - @Override - public void onCreateHomeScreenShortcutCreate(DialogFragment dialog) { - // Get shortcutNameEditText from the alert dialog. - EditText shortcutNameEditText = (EditText) dialog.getDialog().findViewById(R.id.shortcutNameEditText); - - // Create the bookmark shortcut based on formattedUrlString. - Intent bookmarkShortcut = new Intent(); - bookmarkShortcut.setAction(Intent.ACTION_VIEW); - bookmarkShortcut.setData(Uri.parse(formattedUrlString)); - - // Place the bookmark shortcut on the home screen. - Intent placeBookmarkShortcut = new Intent(); - placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut); - placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString()); - placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon); - placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); - sendBroadcast(placeBookmarkShortcut); - } - - // Override onBackPressed so that if mainWebView can go back it does when the system back button is pressed. - @Override - public void onBackPressed() { - final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); - - if (mainWebView.canGoBack()) { - mainWebView.goBack(); - } else { - super.onBackPressed(); - } - } - - public void loadUrlFromTextBox() throws UnsupportedEncodingException { - // Make sure that actionBar is not null. - ActionBar actionBar = getSupportActionBar(); - if (actionBar != null) { - final WebView mainWebView = (WebView) findViewById(R.id.mainWebView); - EditText urlTextBox = (EditText) actionBar.getCustomView().findViewById(R.id.urlTextBox); - - // Get the text from urlTextInput and convert it to a string. - String unformattedUrlString = urlTextBox.getText().toString(); - URL unformattedUrl = null; - Uri.Builder formattedUri = new Uri.Builder(); - - // Check to see if unformattedUrlString is a valid URL. Otherwise, convert it into a Duck Duck Go search. - if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) { - - // Add http:// at the beginning if it is missing. Otherwise the app will segfault. - if (!unformattedUrlString.startsWith("http")) { - unformattedUrlString = "http://" + unformattedUrlString; - } - - // 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. - try { - unformattedUrl = new URL(unformattedUrlString); - } catch (MalformedURLException e) { - e.printStackTrace(); - } - - // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value. - final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null; - final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null; - final String path = unformattedUrl != null ? unformattedUrl.getPath() : null; - final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null; - final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null; - - formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment); - formattedUrlString = formattedUri.build().toString(); - - } else { - // Sanitize the search input and convert it to a DuckDuckGo search. - final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8"); - formattedUrlString = "https://duckduckgo.com/?q=" + encodedUrlString; - } - - mainWebView.loadUrl(formattedUrlString); - - // Hides the keyboard so we can see the webpage. - InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE); - inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0); - } - } -} \ No newline at end of file