/*
- * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2016-2017 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
package com.stoutner.privacybrowser.fragments;
+import android.annotation.SuppressLint;
+import android.content.pm.PackageManager;
+import android.content.pm.Signature;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Paint;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import com.stoutner.privacybrowser.BuildConfig;
import com.stoutner.privacybrowser.R;
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.math.BigInteger;
+import java.security.Principal;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+import java.text.DateFormat;
+import java.util.Date;
public class AboutTabFragment extends Fragment {
private int tabNumber;
- // AboutTabFragment.createTab stores the tab number in the bundle arguments so it can be referenced from onCreate().
+ // `AboutTabFragment.createTab` stores the tab number in the bundle arguments so it can be referenced from `onCreate()`.
public static AboutTabFragment createTab(int tab) {
Bundle thisTabArguments = new Bundle();
thisTabArguments.putInt("Tab", tab);
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
- // Store the tab number in tabNumber.
+ // Store the tab number in `tabNumber`.
tabNumber = getArguments().getInt("Tab");
}
// Load the tabs. Tab numbers start at 0.
if (tabNumber == 0) { // Load the about tab.
- // Setting false at the end of inflater.inflate does not attach the inflated layout as a child of container.
- // The fragment will take care of attaching the root automatically.
+ // Setting false at the end of inflater.inflate does not attach the inflated layout as a child of container. The fragment will take care of attaching the root automatically.
tabLayout = inflater.inflate(R.layout.about_tab_version, container, false);
// Get handles for the `TextViews`.
TextView versionBuildTextView = (TextView) tabLayout.findViewById(R.id.about_version_build);
TextView versionSecurityPatchTextView = (TextView) tabLayout.findViewById(R.id.about_version_securitypatch);
TextView versionWebKitTextView = (TextView) tabLayout.findViewById(R.id.about_version_webkit);
- TextView versionChromeText = (TextView) tabLayout.findViewById(R.id.about_version_chrome);
+ TextView versionChromeTextView = (TextView) tabLayout.findViewById(R.id.about_version_chrome);
+ TextView versionOrbotTextView = (TextView) tabLayout.findViewById(R.id.about_version_orbot);
+ TextView certificateIssuerDNTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_issuer_dn);
+ TextView certificateSubjectDNTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_subject_dn);
+ TextView certificateStartDateTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_start_date);
+ TextView certificateEndDateTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_end_date);
+ TextView certificateVersionTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_version);
+ TextView certificateSerialNumberTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_serial_number);
+ TextView certificateSignatureAlgorithmTextView = (TextView) tabLayout.findViewById(R.id.about_version_certificate_signature_algorithm);
// Setup the labels.
String version = getString(R.string.version) + " " + BuildConfig.VERSION_NAME + " (" + getString(R.string.version_code) + " " + Integer.toString(BuildConfig.VERSION_CODE) + ")";
String buildLabel = getString(R.string.build) + " ";
String webKitLabel = getString(R.string.webkit) + " ";
String chromeLabel = getString(R.string.chrome) + " ";
+ String issuerDNLabel = getString(R.string.issuer_dn) + " ";
+ String subjectDNLabel = getString(R.string.subject_dn) + " ";
+ String startDateLabel = getString(R.string.start_date) + " ";
+ String endDateLabel = getString(R.string.end_date) + " ";
+ String certificateVersionLabel = getString(R.string.certificate_version) + " ";
+ String serialNumberLabel = getString(R.string.serial_number) + " ";
+ String signatureAlgorithmLabel = getString(R.string.signature_algorithm) + " ";
// `webViewLayout` is only used to get the default user agent from `bare_webview`. It is not used to render content on the screen.
View webViewLayout = inflater.inflate(R.layout.bare_webview, container, false);
// Select the substring that begins after "Chrome/" and goes until the next " ".
String chrome = userAgentString.substring(userAgentString.indexOf("Chrome/") + 7, userAgentString.indexOf(" ", userAgentString.indexOf("Chrome/")));
- // Create a `SpannableStringBuilder` for each `TextView` that needs multiple colors of text.
+ // Get the Orbot version name if Orbot is installed.
+ String orbot;
+ try {
+ // Store the version name.
+ orbot = getContext().getPackageManager().getPackageInfo("org.torproject.android", PackageManager.GET_CONFIGURATIONS).versionName;
+ } catch (PackageManager.NameNotFoundException e) { // Orbot is not installed.
+ orbot = "";
+ }
+
+ // Create a `SpannableStringBuilder` for the hardware and software `TextViews` that needs multiple colors of text.
SpannableStringBuilder brandStringBuilder = new SpannableStringBuilder(brandLabel + brand);
SpannableStringBuilder manufacturerStringBuilder = new SpannableStringBuilder(manufacturerLabel + manufacturer);
SpannableStringBuilder modelStringBuilder = new SpannableStringBuilder(modelLabel + model);
SpannableStringBuilder webKitStringBuilder = new SpannableStringBuilder(webKitLabel + webKit);
SpannableStringBuilder chromeStringBuilder = new SpannableStringBuilder(chromeLabel + chrome);
- // Create a blue `ForegroundColorSpan`. We have to use the deprecated `getColor` until API >= 23.
- @SuppressWarnings("deprecation") ForegroundColorSpan blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
+ // Create the `blueColorSpan` variable.
+ ForegroundColorSpan blueColorSpan;
+
+ // Set `blueColorSpan` according to the theme. We have to use the deprecated `getColor()` until API >= 23.
+ if (MainWebViewActivity.darkTheme) {
+ //noinspection deprecation
+ blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_400));
+ } else {
+ //noinspection deprecation
+ blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
+ }
// Setup the spans to display the device information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
brandStringBuilder.setSpan(blueColorSpan, brandLabel.length(), brandStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
webKitStringBuilder.setSpan(blueColorSpan, webKitLabel.length(), webKitStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
chromeStringBuilder.setSpan(blueColorSpan, chromeLabel.length(), chromeStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
- // Display the strings.
+ // Display the strings in the text boxes.
versionNumberTextView.setText(version);
versionBrandTextView.setText(brandStringBuilder);
versionManufacturerTextView.setText(manufacturerStringBuilder);
versionAndroidTextView.setText(androidStringBuilder);
versionBuildTextView.setText(buildStringBuilder);
versionWebKitTextView.setText(webKitStringBuilder);
- versionChromeText.setText(chromeStringBuilder);
+ versionChromeTextView.setText(chromeStringBuilder);
// Build.VERSION.SECURITY_PATCH is only available for SDK_INT >= 23.
if (Build.VERSION.SDK_INT >= 23) {
SpannableStringBuilder securityPatchStringBuilder = new SpannableStringBuilder(securityPatchLabel + securityPatch);
securityPatchStringBuilder.setSpan(blueColorSpan, securityPatchLabel.length(), securityPatchStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
versionSecurityPatchTextView.setText(securityPatchStringBuilder);
- } else { // Hide `versionSecurityPatchTextView`.
+ } else { // SDK_INT < 23, so `versionSecurityPatchTextView` should be hidden.
versionSecurityPatchTextView.setVisibility(View.GONE);
}
SpannableStringBuilder radioStringBuilder = new SpannableStringBuilder(radioLabel + radio);
radioStringBuilder.setSpan(blueColorSpan, radioLabel.length(), radioStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
versionRadioTextView.setText(radioStringBuilder);
- } else { // Hide `versionRadioTextView`.
+ } else { // This device does not have a radio, so `versionRadioTextView` should be hidden.
versionRadioTextView.setVisibility(View.GONE);
}
+
+ // Only populate `versionOrbotTextView` if Orbot is installed.
+ if (!orbot.equals("")) {
+ String orbotLabel = getString(R.string.orbot) + " ";
+ SpannableStringBuilder orbotStringBuilder = new SpannableStringBuilder(orbotLabel + orbot);
+ orbotStringBuilder.setSpan(blueColorSpan, orbotLabel.length(), orbotStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ versionOrbotTextView.setText(orbotStringBuilder);
+ } else { // Orbot is not installed, so the `versionOrbotTextView` should be hidden.
+ versionOrbotTextView.setVisibility(View.GONE);
+ }
+
+ // Display the package signature.
+ try {
+ // Get the first package signature. Suppress the lint warning about the need to be careful in implementing comparison of certificates for security purposes.
+ @SuppressLint("PackageManagerGetSignatures") Signature packageSignature = getContext().getPackageManager().getPackageInfo(getContext().getPackageName(), PackageManager.GET_SIGNATURES).signatures[0];
+
+ // Convert the signature to a `byte[]` `InputStream`.
+ InputStream certificateByteArrayInputStream = new ByteArrayInputStream(packageSignature.toByteArray());
+
+ // Display the certificate information on the screen.
+ try {
+ // Instantiate a `CertificateFactory`.
+ CertificateFactory certificateFactory = CertificateFactory.getInstance("X509");
+
+ // Generate an `X509Certificate`.
+ X509Certificate x509Certificate = (X509Certificate) certificateFactory.generateCertificate(certificateByteArrayInputStream);
+
+ // Store the individual sections of the certificate that we are interested in.
+ Principal issuerDNPrincipal = x509Certificate.getIssuerDN();
+ Principal subjectDNPrincipal = x509Certificate.getSubjectDN();
+ Date startDate = x509Certificate.getNotBefore();
+ Date endDate = x509Certificate.getNotAfter();
+ int certificateVersion = x509Certificate.getVersion();
+ BigInteger serialNumberBigInteger = x509Certificate.getSerialNumber();
+ String signatureAlgorithmNameString = x509Certificate.getSigAlgName();
+
+ // Create a `SpannableStringBuilder` for each `TextView` that needs multiple colors of text.
+ SpannableStringBuilder issuerDNStringBuilder = new SpannableStringBuilder(issuerDNLabel + issuerDNPrincipal.toString());
+ SpannableStringBuilder subjectDNStringBuilder = new SpannableStringBuilder(subjectDNLabel + subjectDNPrincipal.toString());
+ SpannableStringBuilder startDateStringBuilder = new SpannableStringBuilder(startDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDate));
+ SpannableStringBuilder endDataStringBuilder = new SpannableStringBuilder(endDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDate));
+ SpannableStringBuilder certificateVersionStringBuilder = new SpannableStringBuilder(certificateVersionLabel + certificateVersion);
+ SpannableStringBuilder serialNumberStringBuilder = new SpannableStringBuilder(serialNumberLabel + serialNumberBigInteger);
+ SpannableStringBuilder signatureAlgorithmStringBuilder = new SpannableStringBuilder(signatureAlgorithmLabel + signatureAlgorithmNameString);
+
+ // Setup the spans to display the device information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
+ issuerDNStringBuilder.setSpan(blueColorSpan, issuerDNLabel.length(), issuerDNStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ subjectDNStringBuilder.setSpan(blueColorSpan, subjectDNLabel.length(), subjectDNStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length(), startDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ endDataStringBuilder.setSpan(blueColorSpan, endDateLabel.length(), endDataStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ certificateVersionStringBuilder.setSpan(blueColorSpan, certificateVersionLabel.length(), certificateVersionStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ serialNumberStringBuilder.setSpan(blueColorSpan, serialNumberLabel.length(), serialNumberStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+ signatureAlgorithmStringBuilder.setSpan(blueColorSpan, signatureAlgorithmLabel.length(), signatureAlgorithmStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+
+ // Display the strings in the text boxes.
+ certificateIssuerDNTextView.setText(issuerDNStringBuilder);
+ certificateSubjectDNTextView.setText(subjectDNStringBuilder);
+ certificateStartDateTextView.setText(startDateStringBuilder);
+ certificateEndDateTextView.setText(endDataStringBuilder);
+ certificateVersionTextView.setText(certificateVersionStringBuilder);
+ certificateSerialNumberTextView.setText(serialNumberStringBuilder);
+ certificateSignatureAlgorithmTextView.setText(signatureAlgorithmStringBuilder);
+ } catch (CertificateException e) {
+ // Do nothing if there is a certificate error.
+ }
+ } catch (PackageManager.NameNotFoundException e) {
+ // Do nothing if `PackageManager` says Privacy Browser isn't installed.
+ }
} else { // load a WebView for all the other tabs. Tab numbers start at 0.
- // Setting false at the end of inflater.inflate does not attach the inflated layout as a child of container.
- // The fragment will take care of attaching the root automatically.
+ // Setting false at the end of inflater.inflate does not attach the inflated layout as a child of container. The fragment will take care of attaching the root automatically.
tabLayout = inflater.inflate(R.layout.bare_webview, container, false);
+
+ // Get a handle for `tabWebView`.
WebView tabWebView = (WebView) tabLayout;
+ // Filter the colors if `darkTheme` is `true`.
+ if (MainWebViewActivity.darkTheme) {
+ // Initialize `darkPaint`.
+ Paint darkPaint = new Paint();
+
+ // Setup a float array that inverts and tempers the colors (no hard whites or blacks).
+ float[] darkFilterFloatArray = {
+ -.8f, 0, 0, 0, 255, // Red.
+ 0, -.8f, 0, 0, 255, // Green.
+ 0, 0, -.8f, 0, 255, // Blue.
+ 0, 0, 0, .8f, 0 // Alpha.
+ };
+
+ // Set `darkPaint` to use `darkFilterFloatArray`.
+ darkPaint.setColorFilter(new ColorMatrixColorFilter(darkFilterFloatArray));
+
+ // Apply `darkPaint` to `tabWebView`.
+ tabWebView.setLayerType(View.LAYER_TYPE_HARDWARE, darkPaint);
+ } else {
+ // Reset `tabWebView` to use the normal colors.
+ tabWebView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+ }
+
switch (tabNumber) {
case 1:
tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_permissions.html");
projects / PrivacyBrowserAndroid.git / blobdiff