+++ /dev/null
-/*
- * Copyright © 2017-2020 Soren Stoutner <soren@stoutner.com>.
- *
- * This file is part of Privacy Browser <https://www.stoutner.com/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 <http://www.gnu.org/licenses/>.
- */
-
-package com.stoutner.privacybrowser.activities;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.os.Build;
-import android.os.Bundle;
-import android.os.LocaleList;
-import android.preference.PreferenceManager;
-import android.text.Spanned;
-import android.text.style.ForegroundColorSpan;
-import android.util.TypedValue;
-import android.view.KeyEvent;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.WindowManager;
-import android.view.inputmethod.InputMethodManager;
-import android.widget.EditText;
-import android.widget.ProgressBar;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.Toolbar;
-import androidx.core.app.NavUtils;
-import androidx.fragment.app.DialogFragment;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
-
-import com.google.android.material.snackbar.Snackbar;
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.dialogs.AboutViewSourceDialog;
-import com.stoutner.privacybrowser.helpers.ProxyHelper;
-import com.stoutner.privacybrowser.viewmodelfactories.WebViewSourceFactory;
-import com.stoutner.privacybrowser.viewmodels.WebViewSource;
-
-import java.net.Proxy;
-import java.util.Locale;
-
-public class ViewSourceActivity extends AppCompatActivity {
- // `activity` is used in `onCreate()` and `goBack()`.
- private Activity activity;
-
- // The color spans are used in `onCreate()` and `highlightUrlText()`.
- private ForegroundColorSpan redColorSpan;
- private ForegroundColorSpan initialGrayColorSpan;
- private ForegroundColorSpan finalGrayColorSpan;
-
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
-
- // Get the screenshot preference.
- boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
-
- // Disable screenshots if not allowed.
- if (!allowScreenshots) {
- getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
- }
-
- // Set the theme.
- setTheme(R.style.PrivacyBrowser);
-
- // Run the default commands.
- super.onCreate(savedInstanceState);
-
- // Get the launching intent
- Intent intent = getIntent();
-
- // Get the information from the intent.
- String userAgent = intent.getStringExtra("user_agent");
- String currentUrl = intent.getStringExtra("current_url");
-
- // Remove the incorrect lint warning below that the user agent might be null.
- assert userAgent != null;
-
- // Store a handle for the current activity.
- activity = this;
-
- // Set the content view.
- setContentView(R.layout.view_source_coordinatorlayout);
-
- // Get a handle for the toolbar.
- Toolbar toolbar = findViewById(R.id.view_source_toolbar);
-
- // Set the support action bar.
- setSupportActionBar(toolbar);
-
- // Get a handle for the action bar.
- final ActionBar actionBar = getSupportActionBar();
-
- // Remove the incorrect lint warning that the action bar might be null.
- assert actionBar != null;
-
- // Add the custom layout to the action bar.
- actionBar.setCustomView(R.layout.view_source_app_bar);
- actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
-
- // Get handles for the views.
- EditText urlEditText = findViewById(R.id.url_edittext);
- TextView requestHeadersTextView = findViewById(R.id.request_headers);
- TextView responseMessageTextView = findViewById(R.id.response_message);
- TextView responseHeadersTextView = findViewById(R.id.response_headers);
- TextView responseBodyTextView = findViewById(R.id.response_body);
- ProgressBar progressBar = findViewById(R.id.progress_bar);
- SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.view_source_swiperefreshlayout);
-
- // Populate the URL text box.
- urlEditText.setText(currentUrl);
-
- // Initialize the gray foreground color spans for highlighting the URLs. The deprecated `getResources()` must be used until API >= 23.
- initialGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
- finalGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
-
- // Get the current theme status.
- int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-
- // Set the red color span according to the theme.
- if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
- redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
- } else {
- redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_900));
- }
-
- // Apply text highlighting to the URL.
- highlightUrlText();
-
- // Get a handle for the input method manager, which is used to hide the keyboard.
- InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-
- // Remove the lint warning that the input method manager might be null.
- assert inputMethodManager != null;
-
- // Remove the formatting from the URL when the user is editing the text.
- urlEditText.setOnFocusChangeListener((View v, boolean hasFocus) -> {
- if (hasFocus) { // The user is editing `urlTextBox`.
- // Remove the highlighting.
- urlEditText.getText().removeSpan(redColorSpan);
- urlEditText.getText().removeSpan(initialGrayColorSpan);
- urlEditText.getText().removeSpan(finalGrayColorSpan);
- } else { // The user has stopped editing `urlTextBox`.
- // Hide the soft keyboard.
- inputMethodManager.hideSoftInputFromWindow(urlEditText.getWindowToken(), 0);
-
- // Move to the beginning of the string.
- urlEditText.setSelection(0);
-
- // Reapply the highlighting.
- highlightUrlText();
- }
- });
-
- // Set the refresh color scheme according to the theme.
- if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
- swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
- } else {
- swipeRefreshLayout.setColorSchemeResources(R.color.violet_500);
- }
-
- // Initialize a color background typed value.
- TypedValue colorBackgroundTypedValue = new TypedValue();
-
- // Get the color background from the theme.
- getTheme().resolveAttribute(android.R.attr.colorBackground, colorBackgroundTypedValue, true);
-
- // Get the color background int from the typed value.
- int colorBackgroundInt = colorBackgroundTypedValue.data;
-
- // Set the swipe refresh background color.
- swipeRefreshLayout.setProgressBackgroundColorSchemeColor(colorBackgroundInt);
-
- // Get the Do Not Track status.
- boolean doNotTrack = sharedPreferences.getBoolean("do_not_track", false);
-
- // Instantiate a locale string.
- String localeString;
-
- // Populate the locale string.
- if (Build.VERSION.SDK_INT >= 24) { // SDK >= 24 has a list of locales.
- // Get the list of locales.
- LocaleList localeList = getResources().getConfiguration().getLocales();
-
- // Initialize a string builder to extract the locales from the list.
- StringBuilder localesStringBuilder = new StringBuilder();
-
- // Initialize a `q` value, which is used by `WebView` to indicate the order of importance of the languages.
- int q = 10;
-
- // Populate the string builder with the contents of the locales list.
- for (int i = 0; i < localeList.size(); i++) {
- // Append a comma if there is already an item in the string builder.
- if (i > 0) {
- localesStringBuilder.append(",");
- }
-
- // Get the locale from the list.
- Locale locale = localeList.get(i);
-
- // Add the locale to the string. `locale` by default displays as `en_US`, but WebView uses the `en-US` format.
- localesStringBuilder.append(locale.getLanguage());
- localesStringBuilder.append("-");
- localesStringBuilder.append(locale.getCountry());
-
- // If not the first locale, append `;q=0.x`, which drops by .1 for each removal from the main locale until q=0.1.
- if (q < 10) {
- localesStringBuilder.append(";q=0.");
- localesStringBuilder.append(q);
- }
-
- // Decrement `q` if it is greater than 1.
- if (q > 1) {
- q--;
- }
-
- // Add a second entry for the language only portion of the locale.
- localesStringBuilder.append(",");
- localesStringBuilder.append(locale.getLanguage());
-
- // Append `1;q=0.x`, which drops by .1 for each removal form the main locale until q=0.1.
- localesStringBuilder.append(";q=0.");
- localesStringBuilder.append(q);
-
- // Decrement `q` if it is greater than 1.
- if (q > 1) {
- q--;
- }
- }
-
- // Store the populated string builder in the locale string.
- localeString = localesStringBuilder.toString();
- } else { // SDK < 24 only has a primary locale.
- // Store the locale in the locale string.
- localeString = Locale.getDefault().toString();
- }
-
- // Instantiate the proxy helper.
- ProxyHelper proxyHelper = new ProxyHelper();
-
- // Get the current proxy.
- Proxy proxy = proxyHelper.getCurrentProxy(this);
-
- // Make the progress bar visible.
- progressBar.setVisibility(View.VISIBLE);
-
- // Set the progress bar to be indeterminate.
- progressBar.setIndeterminate(true);
-
- // Instantiate the WebView source factory.
- ViewModelProvider.Factory webViewSourceFactory = new WebViewSourceFactory(currentUrl, userAgent, doNotTrack, localeString, proxy, MainWebViewActivity.executorService);
-
- // Instantiate the WebView source view model class.
- final WebViewSource webViewSource = new ViewModelProvider(this, webViewSourceFactory).get(WebViewSource.class);
-
- // Create a source observer.
- webViewSource.observeSource().observe(this, sourceStringArray -> {
- // Populate the text views. This can take a long time, and freezes the user interface, if the response body is particularly large.
- requestHeadersTextView.setText(sourceStringArray[0]);
- responseMessageTextView.setText(sourceStringArray[1]);
- responseHeadersTextView.setText(sourceStringArray[2]);
- responseBodyTextView.setText(sourceStringArray[3]);
-
- // Hide the progress bar.
- progressBar.setIndeterminate(false);
- progressBar.setVisibility(View.GONE);
-
- //Stop the swipe to refresh indicator if it is running
- swipeRefreshLayout.setRefreshing(false);
- });
-
- // Create an error observer.
- webViewSource.observeErrors().observe(this, errorString -> {
- // Display an error snackbar if the string is not `""`.
- if (!errorString.equals("")) {
- Snackbar.make(swipeRefreshLayout, errorString, Snackbar.LENGTH_LONG).show();
- }
- });
-
- // Implement swipe to refresh.
- swipeRefreshLayout.setOnRefreshListener(() -> {
- // Make the progress bar visible.
- progressBar.setVisibility(View.VISIBLE);
-
- // Set the progress bar to be indeterminate.
- progressBar.setIndeterminate(true);
-
- // Get the URL.
- String urlString = urlEditText.getText().toString();
-
- // Get the updated source.
- webViewSource.updateSource(urlString);
- });
-
- // Set the go button on the keyboard to request new source data.
- urlEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> {
- // Request new source data if the enter key was pressed.
- if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
- // Hide the soft keyboard.
- inputMethodManager.hideSoftInputFromWindow(urlEditText.getWindowToken(), 0);
-
- // Remove the focus from the URL box.
- urlEditText.clearFocus();
-
- // Make the progress bar visible.
- progressBar.setVisibility(View.VISIBLE);
-
- // Set the progress bar to be indeterminate.
- progressBar.setIndeterminate(true);
-
- // Get the URL.
- String urlString = urlEditText.getText().toString();
-
- // Get the updated source.
- webViewSource.updateSource(urlString);
-
- // Consume the key press.
- return true;
- } else {
- // Do not consume the key press.
- return false;
- }
- });
- }
-
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu. This adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.view_source_options_menu, menu);
-
- // Display the menu.
- return true;
- }
-
- @Override
- public boolean onOptionsItemSelected(@NonNull MenuItem menuItem) {
- // Get a handle for the about alert dialog.
- DialogFragment aboutDialogFragment = new AboutViewSourceDialog();
-
- // Show the about alert dialog.
- aboutDialogFragment.show(getSupportFragmentManager(), getString(R.string.about));
-
- // Consume the event.
- return true;
- }
-
- public void goBack(View view) {
- // Go home.
- NavUtils.navigateUpFromSameTask(activity);
- }
-
- private void highlightUrlText() {
- // Get a handle for the URL EditText.
- EditText urlEditText = findViewById(R.id.url_edittext);
-
- // Get the URL string.
- String urlString = urlEditText.getText().toString();
-
- // Highlight the URL according to the protocol.
- if (urlString.startsWith("file://")) { // This is a file URL.
- // De-emphasize only the protocol.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else if (urlString.startsWith("content://")) {
- // De-emphasize only the protocol.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, 10, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // This is a web URL.
- // Get the index of the `/` immediately after the domain name.
- int endOfDomainName = urlString.indexOf("/", (urlString.indexOf("//") + 2));
-
- // Create a base URL string.
- String baseUrl;
-
- // Get the base URL.
- if (endOfDomainName > 0) { // There is at least one character after the base URL.
- // Get the base URL.
- baseUrl = urlString.substring(0, endOfDomainName);
- } else { // There are no characters after the base URL.
- // Set the base URL to be the entire URL string.
- baseUrl = urlString;
- }
-
- // Get the index of the last `.` in the domain.
- int lastDotIndex = baseUrl.lastIndexOf(".");
-
- // Get the index of the penultimate `.` in the domain.
- int penultimateDotIndex = baseUrl.lastIndexOf(".", lastDotIndex - 1);
-
- // Markup the beginning of the URL.
- if (urlString.startsWith("http://")) { // Highlight the protocol of connections that are not encrypted.
- urlEditText.getText().setSpan(redColorSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
-
- // De-emphasize subdomains.
- if (penultimateDotIndex > 0) { // There is more than one subdomain in the domain name.
- urlEditText.getText().setSpan(initialGrayColorSpan, 7, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- } else if (urlString.startsWith("https://")) { // De-emphasize the protocol of connections that are encrypted.
- if (penultimateDotIndex > 0) { // There is more than one subdomain in the domain name.
- // De-emphasize the protocol and the additional subdomains.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, penultimateDotIndex + 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // There is only one subdomain in the domain name.
- // De-emphasize only the protocol.
- urlEditText.getText().setSpan(initialGrayColorSpan, 0, 8, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- }
-
- // De-emphasize the text after the domain name.
- if (endOfDomainName > 0) {
- urlEditText.getText().setSpan(finalGrayColorSpan, endOfDomainName, urlString.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- }
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff