+++ /dev/null
-/*
- * Copyright © 2016-2020 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.dialogs;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
-import android.net.http.SslCertificate;
-import android.os.Bundle;
-import android.text.SpannableStringBuilder;
-import android.text.Spanned;
-import android.text.style.ForegroundColorSpan;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.WindowManager;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AlertDialog;
-import androidx.fragment.app.DialogFragment;
-import androidx.preference.PreferenceManager;
-
-import com.stoutner.privacybrowser.activities.MainWebViewActivity;
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.fragments.WebViewTabFragment;
-import com.stoutner.privacybrowser.views.NestedScrollWebView;
-
-import java.text.DateFormat;
-import java.util.Calendar;
-import java.util.Date;
-
-public class ViewSslCertificateDialog extends DialogFragment {
- public static ViewSslCertificateDialog displayDialog(long webViewFragmentId) {
- // Create an arguments bundle.
- Bundle argumentsBundle = new Bundle();
-
- // Store the WebView fragment ID in the bundle.
- argumentsBundle.putLong("webview_fragment_id", webViewFragmentId);
-
- // Create a new instance of the dialog.
- ViewSslCertificateDialog viewSslCertificateDialog = new ViewSslCertificateDialog();
-
- // Add the bundle to the dialog.
- viewSslCertificateDialog.setArguments(argumentsBundle);
-
- // Return the new dialog.
- return viewSslCertificateDialog;
- }
-
- // `@SuppressLint("InflateParams")` removes the warning about using `null` as the parent view group when inflating the alert dialog.
- @SuppressLint("InflateParams")
- @Override
- @NonNull
- public Dialog onCreateDialog(Bundle savedInstanceState) {
- // Get a handle for the activity and the context.
- Activity activity = requireActivity();
- Context context = requireContext();
-
- // Get the activity's layout inflater.
- LayoutInflater layoutInflater = activity.getLayoutInflater();
-
- // Get the arguments.
- Bundle arguments = getArguments();
-
- // Remove the incorrect lint warning below that the arguments might be null.
- assert arguments != null;
-
- // Get the current position of this WebView fragment.
- int webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(arguments.getLong("webview_fragment_id"));
-
- // Get the WebView tab fragment.
- WebViewTabFragment webViewTabFragment = MainWebViewActivity.webViewPagerAdapter.getPageFragment(webViewPosition);
-
- // Get the fragment view.
- View fragmentView = webViewTabFragment.getView();
-
- // Remove the incorrect lint warning below that the fragment view might be null.
- assert fragmentView != null;
-
- // Get a handle for the current WebView.
- NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
-
-
- // Use a builder to create the alert dialog.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context, R.style.PrivacyBrowserAlertDialog);
-
- // Create a drawable version of the favorite icon.
- Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), nestedScrollWebView.getFavoriteOrDefaultIcon());
-
- // Set the icon.
- dialogBuilder.setIcon(favoriteIconDrawable);
-
- // Set the close button listener. Using `null` as the listener closes the dialog without doing anything else.
- dialogBuilder.setNegativeButton(R.string.close, null);
-
- // Get the SSL certificate.
- SslCertificate sslCertificate = nestedScrollWebView.getCertificate();
-
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-
- // Get the screenshot preference.
- boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
-
- // Check to see if the website is encrypted.
- if (sslCertificate == null) { // The website is not encrypted.
- // Set the title.
- dialogBuilder.setTitle(R.string.unencrypted_website);
-
- // Set the Layout. The parent view is `null` because it will be assigned by the alert dialog.
- dialogBuilder.setView(layoutInflater.inflate(R.layout.unencrypted_website_dialog, null));
-
- // Create an alert dialog from the alert dialog builder.
- final AlertDialog alertDialog = dialogBuilder.create();
-
- // Disable screenshots if not allowed.
- if (!allowScreenshots) {
- // Remove the warning below that `getWindow()` might be null.
- assert alertDialog.getWindow() != null;
-
- // Disable screenshots.
- alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
- }
-
- // `onCreateDialog` requires the return of an `AlertDialog`.
- return alertDialog;
- } else { // Display the SSL certificate information
- // Set the title.
- dialogBuilder.setTitle(R.string.ssl_certificate);
-
- // Set the layout. The parent view is `null` because it will be assigned by the alert dialog.
- dialogBuilder.setView(layoutInflater.inflate(R.layout.view_ssl_certificate_dialog, null));
-
- // Create an alert dialog from the builder.
- final AlertDialog alertDialog = dialogBuilder.create();
-
- // Disable screenshots if not allowed.
- if (!allowScreenshots) {
- // Remove the warning below that `getWindow()` might be null.
- assert alertDialog.getWindow() != null;
-
- // Disable screenshots.
- alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
- }
-
- // The alert dialog must be shown before items in the layout can be modified.
- alertDialog.show();
-
- // Get handles for the text views.
- TextView domainTextView = alertDialog.findViewById(R.id.domain);
- TextView ipAddressesTextView = alertDialog.findViewById(R.id.ip_addresses);
- TextView issuedToCNameTextView = alertDialog.findViewById(R.id.issued_to_cname);
- TextView issuedToONameTextView = alertDialog.findViewById(R.id.issued_to_oname);
- TextView issuedToUNameTextView = alertDialog.findViewById(R.id.issued_to_uname);
- TextView issuedByCNameTextView = alertDialog.findViewById(R.id.issued_by_cname);
- TextView issuedByONameTextView = alertDialog.findViewById(R.id.issued_by_oname);
- TextView issuedByUNameTextView = alertDialog.findViewById(R.id.issued_by_uname);
- TextView startDateTextView = alertDialog.findViewById(R.id.start_date);
- TextView endDateTextView = alertDialog.findViewById(R.id.end_date);
-
- // Remove the incorrect warning that the views might be null.
- assert domainTextView != null;
- assert ipAddressesTextView != null;
- assert issuedToCNameTextView != null;
- assert issuedToONameTextView != null;
- assert issuedToUNameTextView != null;
- assert issuedByCNameTextView != null;
- assert issuedByONameTextView != null;
- assert issuedByUNameTextView != null;
- assert startDateTextView != null;
- assert endDateTextView != null;
-
- // Setup the labels.
- String domainLabel = getString(R.string.domain_label) + " ";
- String ipAddressesLabel = getString(R.string.ip_addresses) + " ";
- String cNameLabel = getString(R.string.common_name) + " ";
- String oNameLabel = getString(R.string.organization) + " ";
- String uNameLabel = getString(R.string.organizational_unit) + " ";
- String startDateLabel = getString(R.string.start_date) + " ";
- String endDateLabel = getString(R.string.end_date) + " ";
-
- // Convert the formatted URL string to a URI.
- Uri uri = Uri.parse(nestedScrollWebView.getUrl());
-
- // Extract the domain name from the URI.
- String domainString = uri.getHost();
-
- // Get the strings from the SSL certificate.
- String issuedToCName = sslCertificate.getIssuedTo().getCName();
- String issuedToOName = sslCertificate.getIssuedTo().getOName();
- String issuedToUName = sslCertificate.getIssuedTo().getUName();
- String issuedByCName = sslCertificate.getIssuedBy().getCName();
- String issuedByOName = sslCertificate.getIssuedBy().getOName();
- String issuedByUName = sslCertificate.getIssuedBy().getUName();
- Date startDate = sslCertificate.getValidNotBeforeDate();
- Date endDate = sslCertificate.getValidNotAfterDate();
-
- // Create spannable string builders for each text view that needs multiple colors of text.
- SpannableStringBuilder domainStringBuilder = new SpannableStringBuilder(domainLabel + domainString);
- SpannableStringBuilder ipAddressesStringBuilder = new SpannableStringBuilder(ipAddressesLabel + nestedScrollWebView.getCurrentIpAddresses());
- SpannableStringBuilder issuedToCNameStringBuilder = new SpannableStringBuilder(cNameLabel + issuedToCName);
- SpannableStringBuilder issuedToONameStringBuilder = new SpannableStringBuilder(oNameLabel + issuedToOName);
- SpannableStringBuilder issuedToUNameStringBuilder = new SpannableStringBuilder(uNameLabel + issuedToUName);
- SpannableStringBuilder issuedByCNameStringBuilder = new SpannableStringBuilder(cNameLabel + issuedByCName);
- SpannableStringBuilder issuedByONameStringBuilder = new SpannableStringBuilder(oNameLabel + issuedByOName);
- SpannableStringBuilder issuedByUNameStringBuilder = new SpannableStringBuilder(uNameLabel + issuedByUName);
- SpannableStringBuilder startDateStringBuilder = new SpannableStringBuilder(startDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDate));
- SpannableStringBuilder endDateStringBuilder = new SpannableStringBuilder(endDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDate));
-
- // Define the color spans.
- ForegroundColorSpan blueColorSpan;
- ForegroundColorSpan redColorSpan;
-
- // Get the current theme status.
- int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-
- // Set the color spans according to the theme. The deprecated `getResources()` must be used until the minimum API >= 23.
- if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
- blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
- redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
- } else {
- blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.violet_700));
- redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_900));
- }
-
- // Remove the incorrect lint error that `.equals` might produce a NullPointerException.
- assert domainString != null;
-
- // Formet the domain string and issued to CName colors.
- if (domainString.equals(issuedToCName)) { // `domainString` and `issuedToCName` match.
- // Set the strings to be blue.
- domainStringBuilder.setSpan(blueColorSpan, domainLabel.length(), domainStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else if(issuedToCName.startsWith("*.")){ // `issuedToCName` begins with a wildcard.
- // Remove the initial `*.`.
- String baseCertificateDomain = issuedToCName.substring(2);
-
- // Setup a copy of `domainString` to test subdomains.
- String domainStringSubdomain = domainString;
-
- // Initialize `domainNamesMatch`.
- boolean domainNamesMatch = false;
-
- // Check all the subdomains in `domainStringSubdomain` against `baseCertificateDomain`.
- while (!domainNamesMatch && domainStringSubdomain.contains(".")) { // Stop checking if we know that `domainNamesMatch` is `true` or if we run out of `.`.
- // Test the `domainStringSubdomain` against `baseCertificateDomain`.
- if (domainStringSubdomain.equals(baseCertificateDomain)) {
- domainNamesMatch = true;
- }
-
- // Strip out the lowest subdomain of `certificateCommonNameSubdomain`.
- domainStringSubdomain = domainStringSubdomain.substring(domainStringSubdomain.indexOf(".") + 1);
- }
-
- // Format the domain and issued to Common Name according to `domainNamesMatch`.
- if (domainNamesMatch) { // `domainString` is a subdomain of the wildcard `issuedToCNameString`.
- // Set the strings to be blue.
- domainStringBuilder.setSpan(blueColorSpan, domainLabel.length(), domainStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // `domainString` is not a subdomain of the wildcard `issuedToCNameString`.
- // Set the string to be red.
- domainStringBuilder.setSpan(redColorSpan, domainLabel.length(), domainStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToCNameStringBuilder.setSpan(redColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
- } else { // The strings do not match and `issuedToCNameString` does not begin with a wildcard.
- // Set the strings to be red.
- domainStringBuilder.setSpan(redColorSpan, domainLabel.length(), domainStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToCNameStringBuilder.setSpan(redColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
-
- // Set the IP addresses, issued to, and issued by spans to display the certificate information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
- ipAddressesStringBuilder.setSpan(blueColorSpan, ipAddressesLabel.length(), ipAddressesStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length(), issuedToONameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedToUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length(), issuedToUNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedByCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedByCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedByONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length(), issuedByONameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- issuedByUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length(), issuedByUNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
-
- // Get the current date.
- Date currentDate = Calendar.getInstance().getTime();
-
- // Format the start date color. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
- if (startDate.after(currentDate)) { // The certificate start date is in the future.
- startDateStringBuilder.setSpan(redColorSpan, startDateLabel.length(), startDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // The certificate start date is in the past.
- startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length(), startDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
-
- // Format the end date color. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
- if (endDate.before(currentDate)) { // The certificate end date is in the past.
- endDateStringBuilder.setSpan(redColorSpan, endDateLabel.length(), endDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- } else { // The certificate end date is in the future.
- endDateStringBuilder.setSpan(blueColorSpan, endDateLabel.length(), endDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- }
-
- // Display the strings.
- domainTextView.setText(domainStringBuilder);
- ipAddressesTextView.setText(ipAddressesStringBuilder);
- issuedToCNameTextView.setText(issuedToCNameStringBuilder);
- issuedToONameTextView.setText(issuedToONameStringBuilder);
- issuedToUNameTextView.setText(issuedToUNameStringBuilder);
- issuedByCNameTextView.setText(issuedByCNameStringBuilder);
- issuedByONameTextView.setText(issuedByONameStringBuilder);
- issuedByUNameTextView.setText(issuedByUNameStringBuilder);
- startDateTextView.setText(startDateStringBuilder);
- endDateTextView.setText(endDateStringBuilder);
-
- // `onCreateDialog` requires the return of an alert dialog.
- return alertDialog;
- }
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff