/*
- * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2016-2019 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
package com.stoutner.privacybrowser.dialogs;
import android.annotation.SuppressLint;
+import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
-import android.content.Context;
import android.content.DialogInterface;
+import android.content.SharedPreferences;
+import android.net.Uri;
import android.net.http.SslCertificate;
import android.net.http.SslError;
+import android.os.AsyncTask;
import android.os.Bundle;
-import android.support.annotation.NonNull;
-// We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <= 22.
-import android.support.v7.app.AppCompatDialogFragment;
+import android.preference.PreferenceManager;
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.webkit.SslErrorHandler;
import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22.
+
import com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+import com.stoutner.privacybrowser.fragments.WebViewTabFragment;
+import com.stoutner.privacybrowser.views.NestedScrollWebView;
+import java.lang.ref.WeakReference;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
import java.text.DateFormat;
import java.util.Date;
-public class SslCertificateErrorDialog extends AppCompatDialogFragment {
-
- private int primaryErrorInt;
- private String urlWithError;
- private String issuedToCName;
- private String issuedToOName;
- private String issuedToUName;
- private String issuedByCName;
- private String issuedByOName;
- private String issuedByUName;
- private String startDate;
- private String endDate;
-
- public static SslCertificateErrorDialog displayDialog(SslError error) {
+public class SslCertificateErrorDialog extends DialogFragment {
+ public static SslCertificateErrorDialog displayDialog(SslError error, long webViewFragmentId) {
// Get the various components of the SSL error message.
int primaryErrorIntForBundle = error.getPrimaryError();
String urlWithErrorForBundle = error.getUrl();
Date startDateForBundle = sslCertificate.getValidNotBeforeDate();
Date endDateForBundle = sslCertificate.getValidNotAfterDate();
- // Store the SSL error message components in a `Bundle`.
+ // Create an arguments bundle.
Bundle argumentsBundle = new Bundle();
- argumentsBundle.putInt("PrimaryErrorInt", primaryErrorIntForBundle);
- argumentsBundle.putString("UrlWithError", urlWithErrorForBundle);
- argumentsBundle.putString("IssuedToCName", issuedToCNameForBundle);
- argumentsBundle.putString("IssuedToOName", issuedToONameForBundle);
- argumentsBundle.putString("IssuedToUName", issuedToUNameForBundle);
- argumentsBundle.putString("IssuedByCName", issuedByCNameForBundle);
- argumentsBundle.putString("IssuedByOName", issuedByONameForBundle);
- argumentsBundle.putString("IssuedByUName", issuedByUNameForBundle);
- argumentsBundle.putString("StartDate", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDateForBundle));
- argumentsBundle.putString("EndDate", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDateForBundle));
-
- // Add `argumentsBundle` to this instance of `SslCertificateErrorDialog`.
+
+ // Store the SSL error message components in a `Bundle`.
+ argumentsBundle.putInt("primary_error_int", primaryErrorIntForBundle);
+ argumentsBundle.putString("url_with_error", urlWithErrorForBundle);
+ argumentsBundle.putString("issued_to_cname", issuedToCNameForBundle);
+ argumentsBundle.putString("issued_to_oname", issuedToONameForBundle);
+ argumentsBundle.putString("issued_to_uname", issuedToUNameForBundle);
+ argumentsBundle.putString("issued_by_cname", issuedByCNameForBundle);
+ argumentsBundle.putString("issued_by_oname", issuedByONameForBundle);
+ argumentsBundle.putString("issued_by_uname", issuedByUNameForBundle);
+ argumentsBundle.putString("start_date", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDateForBundle));
+ argumentsBundle.putString("end_date", DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDateForBundle));
+ argumentsBundle.putLong("webview_fragment_id", webViewFragmentId);
+
+ // Create a new instance of the SSL certificate error dialog.
SslCertificateErrorDialog thisSslCertificateErrorDialog = new SslCertificateErrorDialog();
+
+ // Add the arguments bundle to the new dialog.
thisSslCertificateErrorDialog.setArguments(argumentsBundle);
+
+ // Return the new dialog.
return thisSslCertificateErrorDialog;
}
+ // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
+ @SuppressLint("InflateParams")
@Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
-
- // Save the components of the SSL error message in class variables.
- primaryErrorInt = getArguments().getInt("PrimaryErrorInt");
- urlWithError = getArguments().getString("UrlWithError");
- issuedToCName = getArguments().getString("IssuedToCName");
- issuedToOName = getArguments().getString("IssuedToOName");
- issuedToUName = getArguments().getString("IssuedToUName");
- issuedByCName = getArguments().getString("IssuedByCName");
- issuedByOName = getArguments().getString("IssuedByOName");
- issuedByUName = getArguments().getString("IssuedByUName");
- startDate = getArguments().getString("StartDate");
- endDate = getArguments().getString("EndDate");
- }
+ @NonNull
+ public Dialog onCreateDialog(Bundle savedInstanceState) {
+ // Get a handle for the arguments.
+ Bundle arguments = getArguments();
- // The public interface is used to send information back to the parent activity.
- public interface SslCertificateErrorListener {
- void onSslErrorCancel();
+ // Remove the incorrect lint warning that the arguments might be null.
+ assert arguments != null;
- void onSslErrorProceed();
- }
+ // Get the variables from the bundle.
+ int primaryErrorInt = arguments.getInt("primary_error_int");
+ String urlWithErrors = arguments.getString("url_with_error");
+ String issuedToCName = arguments.getString("issued_to_cname");
+ String issuedToOName = arguments.getString("issued_to_oname");
+ String issuedToUName = arguments.getString("issued_to_uname");
+ String issuedByCName = arguments.getString("issued_by_cname");
+ String issuedByOName = arguments.getString("issued_by_oname");
+ String issuedByUName = arguments.getString("issued_by_uname");
+ String startDate = arguments.getString("start_date");
+ String endDate = arguments.getString("end_date");
+ long webViewFragmentId = arguments.getLong("webview_fragment_id");
- // `sslCertificateErrorListener` is used in `onAttach` and `onCreateDialog`.
- private SslCertificateErrorListener sslCertificateErrorListener;
+ // Get the current position of this WebView fragment.
+ int webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(webViewFragmentId);
- // Check to make sure that the parent activity implements the listener.
- public void onAttach(Context context) {
- super.onAttach(context);
+ // Get the WebView tab fragment.
+ WebViewTabFragment webViewTabFragment = MainWebViewActivity.webViewPagerAdapter.getPageFragment(webViewPosition);
- try {
- sslCertificateErrorListener = (SslCertificateErrorListener) context;
- } catch(ClassCastException exception) {
- throw new ClassCastException(context.toString() + " must implement SslCertificateErrorListener");
- }
- }
+ // 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);
+
+ // Get a handle for the SSL error handler.
+ SslErrorHandler sslErrorHandler = nestedScrollWebView.getSslErrorHandler();
+
+ // Remove the incorrect lint warning that `getActivity()` might be null.
+ assert getActivity() != null;
- // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
- @SuppressLint("InflateParams")
- @SuppressWarnings("deprecation")
- @Override
- @NonNull
- public Dialog onCreateDialog(Bundle savedInstanceState) {
// Get the activity's layout inflater.
LayoutInflater layoutInflater = getActivity().getLayoutInflater();
- // Use `AlertDialog.Builder` to create the `AlertDialog`. `R.style.LightAlertDialog` formats the color of the button text.
- AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
+ // Use an alert dialog builder to create the alert dialog.
+ AlertDialog.Builder dialogBuilder;
+
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
+
+ // Get the screenshot and theme preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
+ // Set the style and icon according to the theme.
+ if (darkTheme) {
+ // Set the style.
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
+
+ // Set the icon.
+ dialogBuilder.setIcon(R.drawable.ssl_certificate_enabled_dark);
+ } else {
+ // Set the style.
+ dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
+
+ // Set the icon.
+ dialogBuilder.setIcon(R.drawable.ssl_certificate_enabled_light);
+ }
+
+ // Set the title.
dialogBuilder.setTitle(R.string.ssl_certificate_error);
- // The parent view is `null` because it will be assigned by `AlertDialog`.
+
+ // Set the view. The parent view is `null` because it will be assigned by `AlertDialog`.
dialogBuilder.setView(layoutInflater.inflate(R.layout.ssl_certificate_error, null));
- // Set an `onClick` listener on the negative button. `null` doesn't do anything extra when the button is pressed. The `Dialog` will automatically close.
- dialogBuilder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- sslCertificateErrorListener.onSslErrorCancel();
+ // Set a listener on the cancel button.
+ dialogBuilder.setNegativeButton(R.string.cancel, (DialogInterface dialog, int which) -> {
+ // Check to make sure the SSL error handler is not null. This might happen if multiple dialogs are displayed at once.
+ if (sslErrorHandler != null) {
+ // Cancel the request.
+ sslErrorHandler.cancel();
+
+ // Reset the SSL error handler.
+ nestedScrollWebView.resetSslErrorHandler();
}
});
- // Set an `onClick` listener on the positive button.
- dialogBuilder.setPositiveButton(R.string.proceed, new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface dialog, int which) {
- sslCertificateErrorListener.onSslErrorProceed();
+ // Set a listener on the proceed button.
+ dialogBuilder.setPositiveButton(R.string.proceed, (DialogInterface dialog, int which) -> {
+ // Check to make sure the SSL error handler is not null. This might happen if multiple dialogs are displayed at once.
+ if (sslErrorHandler != null) {
+ // Cancel the request.
+ sslErrorHandler.proceed();
+
+ // Reset the SSL error handler.
+ nestedScrollWebView.resetSslErrorHandler();
}
});
- // Create an `AlertDialog` from the `AlertDialog.Builder`.
+ // Create an alert dialog from the alert dialog builder.
AlertDialog alertDialog = dialogBuilder.create();
- // We have to show the `AlertDialog` before we can modify the content.
+ // 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);
+ }
+
+ // Get a URI for the URL with errors.
+ Uri uriWithErrors = Uri.parse(urlWithErrors);
+
+ // Get the IP addresses for the URI.
+ new GetIpAddresses(getActivity(), alertDialog).execute(uriWithErrors.getHost());
+
+ // The alert dialog must be shown before the contents can be modified.
alertDialog.show();
// Get handles for the `TextViews`
- TextView primaryErrorTextView = (TextView) alertDialog.findViewById(R.id.primary_error);
- TextView urlTextView = (TextView) alertDialog.findViewById(R.id.url_error_dialog);
- TextView issuedToCNameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_cname_error_dialog);
- TextView issuedToONameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_oname_error_dialog);
- TextView issuedToUNameTextView = (TextView) alertDialog.findViewById(R.id.issued_to_uname_error_dialog);
- TextView issuedByTextView = (TextView) alertDialog.findViewById(R.id.issued_by_textview);
- TextView issuedByCNameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_cname_error_dialog);
- TextView issuedByONameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_oname_error_dialog);
- TextView issuedByUNameTextView = (TextView) alertDialog.findViewById(R.id.issued_by_uname_error_dialog);
- TextView validDatesTextView = (TextView) alertDialog.findViewById(R.id.valid_dates_textview);
- TextView startDateTextView = (TextView) alertDialog.findViewById(R.id.start_date_error_dialog);
- TextView endDateTextView = (TextView) alertDialog.findViewById(R.id.end_date_error_dialog);
+ TextView primaryErrorTextView = alertDialog.findViewById(R.id.primary_error);
+ TextView urlTextView = alertDialog.findViewById(R.id.url);
+ 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 issuedByTextView = alertDialog.findViewById(R.id.issued_by_textview);
+ 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 validDatesTextView = alertDialog.findViewById(R.id.valid_dates_textview);
+ TextView startDateTextView = alertDialog.findViewById(R.id.start_date);
+ TextView endDateTextView = alertDialog.findViewById(R.id.end_date);
// Setup the common strings.
String urlLabel = getString(R.string.url_label) + " ";
String startDateLabel = getString(R.string.start_date) + " ";
String endDateLabel = getString(R.string.end_date) + " ";
- // Create a `SpannableStringBuilder` for each `TextView` that needs multiple colors of text.
- SpannableStringBuilder urlStringBuilder = new SpannableStringBuilder(urlLabel + urlWithError);
+ // Create a spannable string builder for each text view that needs multiple colors of text.
+ SpannableStringBuilder urlStringBuilder = new SpannableStringBuilder(urlLabel + urlWithErrors);
SpannableStringBuilder issuedToCNameStringBuilder = new SpannableStringBuilder(cNameLabel + issuedToCName);
SpannableStringBuilder issuedToONameStringBuilder = new SpannableStringBuilder(oNameLabel + issuedToOName);
SpannableStringBuilder issuedToUNameStringBuilder = new SpannableStringBuilder(uNameLabel + issuedToUName);
SpannableStringBuilder startDateStringBuilder = new SpannableStringBuilder(startDateLabel + startDate);
SpannableStringBuilder endDateStringBuilder = new SpannableStringBuilder((endDateLabel + endDate));
- // Create the `ForegroundColorSpan`. We have to use the deprecated `getColor` until API >= 23.
- ForegroundColorSpan blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
+ // Create a red foreground color span. The deprecated `getResources().getColor` must be used until the minimum API >= 23.
ForegroundColorSpan redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
+ // Create a blue `ForegroundColorSpan`.
+ ForegroundColorSpan blueColorSpan;
+
+ // Set a blue color span according to the theme. The deprecated `getResources().getColor` must be used until the minimum API >= 23.
+ if (darkTheme) {
+ blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_400));
+ } else {
+ blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
+ }
+
// Setup the spans to display the certificate information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
urlStringBuilder.setSpan(blueColorSpan, urlLabel.length(), urlStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length(), issuedToCNameStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
break;
case SslError.SSL_UNTRUSTED:
- // Change the `issuesByTextView` text to red. We have to use the deprecated `getColor()` until API >= 23.
+ // Change the issued by text view text to red. The deprecated `getResources().getColor` must be used until the minimum API >= 23.
issuedByTextView.setTextColor(getResources().getColor(R.color.red_a700));
// Change the issued by span color to red.
break;
case SslError.SSL_DATE_INVALID:
- // Change the `validDatesTextView` text to red. We have to use the deprecated `getColor()` until API >= 23.
+ // Change the valid dates text view text to red. The deprecated `getResources().getColor` must be used until the minimum API >= 23.
validDatesTextView.setTextColor(getResources().getColor(R.color.red_a700));
// Change the date span colors to red.
startDateTextView.setText(startDateStringBuilder);
endDateTextView.setText(endDateStringBuilder);
- // `onCreateDialog` requires the return of an `AlertDialog`.
+ // `onCreateDialog` requires the return of an alert dialog.
return alertDialog;
}
+
+
+ // This must run asynchronously because it involves a network request. `String` declares the parameters. `Void` does not declare progress units. `SpannableStringBuilder` contains the results.
+ private static class GetIpAddresses extends AsyncTask<String, Void, SpannableStringBuilder> {
+ // The weak references are used to determine if the activity or the alert dialog have disappeared while the AsyncTask is running.
+ private WeakReference<Activity> activityWeakReference;
+ private WeakReference<AlertDialog> alertDialogWeakReference;
+
+ GetIpAddresses(Activity activity, AlertDialog alertDialog) {
+ // Populate the weak references.
+ activityWeakReference = new WeakReference<>(activity);
+ alertDialogWeakReference = new WeakReference<>(alertDialog);
+ }
+
+ @Override
+ protected SpannableStringBuilder doInBackground(String... domainName) {
+ // Get handles for the activity and the alert dialog.
+ Activity activity = activityWeakReference.get();
+ AlertDialog alertDialog = alertDialogWeakReference.get();
+
+ // Abort if the activity or the dialog is gone.
+ if ((activity == null) || (activity.isFinishing()) || (alertDialog == null)) {
+ return new SpannableStringBuilder();
+ }
+
+ // Initialize an IP address string builder.
+ StringBuilder ipAddresses = new StringBuilder();
+
+ // Get an array with the IP addresses for the host.
+ try {
+ // Get an array with all the IP addresses for the domain.
+ InetAddress[] inetAddressesArray = InetAddress.getAllByName(domainName[0]);
+
+ // Add each IP address to the string builder.
+ for (InetAddress inetAddress : inetAddressesArray) {
+ if (ipAddresses.length() == 0) { // This is the first IP address.
+ // Add the IP Address to the string builder.
+ ipAddresses.append(inetAddress.getHostAddress());
+ } else { // This is not the first IP address.
+ // Add a line break to the string builder first.
+ ipAddresses.append("\n");
+
+ // Add the IP address to the string builder.
+ ipAddresses.append(inetAddress.getHostAddress());
+ }
+ }
+ } catch (UnknownHostException exception) {
+ // Do nothing.
+ }
+
+ // Set the label.
+ String ipAddressesLabel = activity.getString(R.string.ip_addresses) + " ";
+
+ // Create a spannable string builder.
+ SpannableStringBuilder ipAddressesStringBuilder = new SpannableStringBuilder(ipAddressesLabel + ipAddresses);
+
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
+
+ // Get the screenshot and theme preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+
+ // Create a blue foreground color span.
+ ForegroundColorSpan blueColorSpan;
+
+ // Set the blue color span according to the theme. The deprecated `getColor()` must be used until the minimum API >= 23.
+ if (darkTheme) {
+ blueColorSpan = new ForegroundColorSpan(activity.getResources().getColor(R.color.blue_400));
+ } else {
+ blueColorSpan = new ForegroundColorSpan(activity.getResources().getColor(R.color.blue_700));
+ }
+
+ // Set the string builder 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);
+
+ // Return the formatted string.
+ return ipAddressesStringBuilder;
+ }
+
+ // `onPostExecute()` operates on the UI thread.
+ @Override
+ protected void onPostExecute(SpannableStringBuilder ipAddresses) {
+ // Get handles for the activity and the alert dialog.
+ Activity activity = activityWeakReference.get();
+ AlertDialog alertDialog = alertDialogWeakReference.get();
+
+ // Abort if the activity or the alert dialog is gone.
+ if ((activity == null) || (activity.isFinishing()) || (alertDialog == null)) {
+ return;
+ }
+
+ // Get a handle for the IP addresses text view.
+ TextView ipAddressesTextView = alertDialog.findViewById(R.id.ip_addresses);
+
+ // Populate the IP addresses text view.
+ ipAddressesTextView.setText(ipAddresses);
+ }
+ }
}
projects / PrivacyBrowserAndroid.git / blobdiff