2 * Copyright © 2016-2020 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.fragments;
22 import android.annotation.SuppressLint;
23 import android.content.Context;
24 import android.content.pm.PackageInfo;
25 import android.content.pm.PackageManager;
26 import android.content.pm.Signature;
27 import android.content.res.Configuration;
28 import android.os.Build;
29 import android.os.Bundle;
30 import android.text.SpannableStringBuilder;
31 import android.text.Spanned;
32 import android.text.style.ForegroundColorSpan;
33 import android.view.LayoutInflater;
34 import android.view.View;
35 import android.view.ViewGroup;
36 import android.webkit.WebView;
37 import android.widget.TextView;
39 import androidx.annotation.NonNull;
40 import androidx.fragment.app.Fragment;
41 import androidx.webkit.WebViewCompat;
43 import com.stoutner.privacybrowser.BuildConfig;
44 import com.stoutner.privacybrowser.R;
46 import java.io.ByteArrayInputStream;
47 import java.io.InputStream;
48 import java.math.BigInteger;
49 import java.security.Principal;
50 import java.security.cert.CertificateException;
51 import java.security.cert.CertificateFactory;
52 import java.security.cert.X509Certificate;
53 import java.text.DateFormat;
54 import java.util.Date;
56 public class AboutTabFragment extends Fragment {
57 // Declare the class variables.
58 private int tabNumber;
59 private String[] blocklistVersions;
61 public static AboutTabFragment createTab(int tabNumber, String[] blocklistVersions) {
63 Bundle argumentsBundle = new Bundle();
65 // Store the tab number in the bundle.
66 argumentsBundle.putInt("tab_number", tabNumber);
67 argumentsBundle.putStringArray("blocklist_versions", blocklistVersions);
69 // Create a new instance of the tab fragment.
70 AboutTabFragment aboutTabFragment = new AboutTabFragment();
72 // Add the arguments bundle to the fragment.
73 aboutTabFragment.setArguments(argumentsBundle);
75 // Return the new fragment.
76 return aboutTabFragment;
80 public void onCreate(Bundle savedInstanceState) {
81 // Run the default commands.
82 super.onCreate(savedInstanceState);
84 // Get a handle for the arguments.
85 Bundle arguments = getArguments();
87 // Remove the incorrect lint warning below that arguments might be null.
88 assert arguments != null;
90 // Store the arguments in class variables.
91 tabNumber = getArguments().getInt("tab_number");
92 blocklistVersions = getArguments().getStringArray("blocklist_versions");
96 public View onCreateView(@NonNull LayoutInflater layoutInflater, ViewGroup container, Bundle savedInstanceState) {
97 // Create a tab layout view.
100 // Get a handle for the context and assert that it isn't null.
101 Context context = getContext();
102 assert context != null;
104 // Get the current theme status.
105 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
107 // Load the tabs. Tab numbers start at 0.
108 if (tabNumber == 0) { // Load the about tab.
109 // 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.
110 tabLayout = layoutInflater.inflate(R.layout.about_tab_version, container, false);
112 // Get handles for the text views.
113 TextView versionTextView = tabLayout.findViewById(R.id.version);
114 TextView brandTextView = tabLayout.findViewById(R.id.brand);
115 TextView manufacturerTextView = tabLayout.findViewById(R.id.manufacturer);
116 TextView modelTextView = tabLayout.findViewById(R.id.model);
117 TextView deviceTextView = tabLayout.findViewById(R.id.device);
118 TextView bootloaderTextView = tabLayout.findViewById(R.id.bootloader);
119 TextView radioTextView = tabLayout.findViewById(R.id.radio);
120 TextView androidTextView = tabLayout.findViewById(R.id.android);
121 TextView securityPatchTextView = tabLayout.findViewById(R.id.security_patch);
122 TextView buildTextView = tabLayout.findViewById(R.id.build);
123 TextView webViewProviderTextView = tabLayout.findViewById(R.id.webview_provider);
124 TextView webViewVersionTextView = tabLayout.findViewById(R.id.webview_version);
125 TextView orbotTextView = tabLayout.findViewById(R.id.orbot);
126 TextView i2pTextView = tabLayout.findViewById(R.id.i2p);
127 TextView openKeychainTextView = tabLayout.findViewById(R.id.open_keychain);
128 TextView easyListTextView = tabLayout.findViewById(R.id.easylist);
129 TextView easyPrivacyTextView = tabLayout.findViewById(R.id.easyprivacy);
130 TextView fanboyAnnoyanceTextView = tabLayout.findViewById(R.id.fanboy_annoyance);
131 TextView fanboySocialTextView = tabLayout.findViewById(R.id.fanboy_social);
132 TextView ultraListTextView = tabLayout.findViewById(R.id.ultralist);
133 TextView ultraPrivacyTextView = tabLayout.findViewById(R.id.ultraprivacy);
134 TextView certificateIssuerDNTextView = tabLayout.findViewById(R.id.certificate_issuer_dn);
135 TextView certificateSubjectDNTextView = tabLayout.findViewById(R.id.certificate_subject_dn);
136 TextView certificateStartDateTextView = tabLayout.findViewById(R.id.certificate_start_date);
137 TextView certificateEndDateTextView = tabLayout.findViewById(R.id.certificate_end_date);
138 TextView certificateVersionTextView = tabLayout.findViewById(R.id.certificate_version);
139 TextView certificateSerialNumberTextView = tabLayout.findViewById(R.id.certificate_serial_number);
140 TextView certificateSignatureAlgorithmTextView = tabLayout.findViewById(R.id.certificate_signature_algorithm);
143 String version = getString(R.string.version) + " " + BuildConfig.VERSION_NAME + " (" + getString(R.string.version_code) + " " + BuildConfig.VERSION_CODE + ")";
144 String brandLabel = getString(R.string.brand) + " ";
145 String manufacturerLabel = getString(R.string.manufacturer) + " ";
146 String modelLabel = getString(R.string.model) + " ";
147 String deviceLabel = getString(R.string.device) + " ";
148 String bootloaderLabel = getString(R.string.bootloader) + " ";
149 String androidLabel = getString(R.string.android) + " ";
150 String buildLabel = getString(R.string.build) + " ";
151 String webViewVersionLabel = getString(R.string.webview_version) + " ";
152 String easyListLabel = getString(R.string.easylist_label) + " ";
153 String easyPrivacyLabel = getString(R.string.easyprivacy_label) + " ";
154 String fanboyAnnoyanceLabel = getString(R.string.fanboy_annoyance_label) + " ";
155 String fanboySocialLabel = getString(R.string.fanboy_social_label) + " ";
156 String ultraListLabel = getString(R.string.ultralist_label) + " ";
157 String ultraPrivacyLabel = getString(R.string.ultraprivacy_label) + " ";
158 String issuerDNLabel = getString(R.string.issuer_dn) + " ";
159 String subjectDNLabel = getString(R.string.subject_dn) + " ";
160 String startDateLabel = getString(R.string.start_date) + " ";
161 String endDateLabel = getString(R.string.end_date) + " ";
162 String certificateVersionLabel = getString(R.string.certificate_version) + " ";
163 String serialNumberLabel = getString(R.string.serial_number) + " ";
164 String signatureAlgorithmLabel = getString(R.string.signature_algorithm) + " ";
166 // The WebView layout is only used to get the default user agent from `bare_webview`. It is not used to render content on the screen.
167 // Once the minimum API >= 26 this can be accomplished with the WebView package info.
168 View webViewLayout = layoutInflater.inflate(R.layout.bare_webview, container, false);
169 WebView tabLayoutWebView = webViewLayout.findViewById(R.id.bare_webview);
170 String userAgentString = tabLayoutWebView.getSettings().getUserAgentString();
172 // Get the device's information and store it in strings.
173 String brand = Build.BRAND;
174 String manufacturer = Build.MANUFACTURER;
175 String model = Build.MODEL;
176 String device = Build.DEVICE;
177 String bootloader = Build.BOOTLOADER;
178 String radio = Build.getRadioVersion();
179 String android = Build.VERSION.RELEASE + " (" + getString(R.string.api) + " " + Build.VERSION.SDK_INT + ")";
180 String build = Build.DISPLAY;
181 // Select the substring that begins after `Chrome/` and goes until the next ` `.
182 String webView = userAgentString.substring(userAgentString.indexOf("Chrome/") + 7, userAgentString.indexOf(" ", userAgentString.indexOf("Chrome/")));
184 // Get the Orbot version name if Orbot is installed.
187 // Store the version name.
188 orbot = context.getPackageManager().getPackageInfo("org.torproject.android", 0).versionName;
189 } catch (PackageManager.NameNotFoundException exception) { // Orbot is not installed.
193 // Get the I2P version name if I2P is installed.
196 // Store the version name.
197 i2p = context.getPackageManager().getPackageInfo("net.i2p.android.router", 0).versionName;
198 } catch (PackageManager.NameNotFoundException exception) { // I2P is not installed.
202 // Get the OpenKeychain version name if it is installed.
205 // Store the version name.
206 openKeychain = context.getPackageManager().getPackageInfo("org.sufficientlysecure.keychain", 0).versionName;
207 } catch (PackageManager.NameNotFoundException exception) { // OpenKeychain is not installed.
211 // Create a `SpannableStringBuilder` for the hardware and software `TextViews` that needs multiple colors of text.
212 SpannableStringBuilder brandStringBuilder = new SpannableStringBuilder(brandLabel + brand);
213 SpannableStringBuilder manufacturerStringBuilder = new SpannableStringBuilder(manufacturerLabel + manufacturer);
214 SpannableStringBuilder modelStringBuilder = new SpannableStringBuilder(modelLabel + model);
215 SpannableStringBuilder deviceStringBuilder = new SpannableStringBuilder(deviceLabel + device);
216 SpannableStringBuilder bootloaderStringBuilder = new SpannableStringBuilder(bootloaderLabel + bootloader);
217 SpannableStringBuilder androidStringBuilder = new SpannableStringBuilder(androidLabel + android);
218 SpannableStringBuilder buildStringBuilder = new SpannableStringBuilder(buildLabel + build);
219 SpannableStringBuilder webViewVersionStringBuilder = new SpannableStringBuilder(webViewVersionLabel + webView);
220 SpannableStringBuilder easyListStringBuilder = new SpannableStringBuilder(easyListLabel + blocklistVersions[0]);
221 SpannableStringBuilder easyPrivacyStringBuilder = new SpannableStringBuilder(easyPrivacyLabel + blocklistVersions[1]);
222 SpannableStringBuilder fanboyAnnoyanceStringBuilder = new SpannableStringBuilder(fanboyAnnoyanceLabel + blocklistVersions[2]);
223 SpannableStringBuilder fanboySocialStringBuilder = new SpannableStringBuilder(fanboySocialLabel + blocklistVersions[3]);
224 SpannableStringBuilder ultraListStringBuilder = new SpannableStringBuilder(ultraListLabel + blocklistVersions[4]);
225 SpannableStringBuilder ultraPrivacyStringBuilder = new SpannableStringBuilder(ultraPrivacyLabel + blocklistVersions[5]);
227 // Create the `blueColorSpan` variable.
228 ForegroundColorSpan blueColorSpan;
230 // Set the blue color span according to the theme. The deprecated `getResources()` must be used until the minimum API >= 23.
231 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
232 blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_400));
234 blueColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.blue_700));
237 // Setup the spans to display the device information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
238 brandStringBuilder.setSpan(blueColorSpan, brandLabel.length(), brandStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
239 manufacturerStringBuilder.setSpan(blueColorSpan, manufacturerLabel.length(), manufacturerStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
240 modelStringBuilder.setSpan(blueColorSpan, modelLabel.length(), modelStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
241 deviceStringBuilder.setSpan(blueColorSpan, deviceLabel.length(), deviceStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
242 bootloaderStringBuilder.setSpan(blueColorSpan, bootloaderLabel.length(), bootloaderStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
243 androidStringBuilder.setSpan(blueColorSpan, androidLabel.length(), androidStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
244 buildStringBuilder.setSpan(blueColorSpan, buildLabel.length(), buildStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
245 webViewVersionStringBuilder.setSpan(blueColorSpan, webViewVersionLabel.length(), webViewVersionStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
246 easyListStringBuilder.setSpan(blueColorSpan, easyListLabel.length(), easyListStringBuilder.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
247 easyPrivacyStringBuilder.setSpan(blueColorSpan, easyPrivacyLabel.length(), easyPrivacyStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
248 fanboyAnnoyanceStringBuilder.setSpan(blueColorSpan, fanboyAnnoyanceLabel.length(), fanboyAnnoyanceStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
249 fanboySocialStringBuilder.setSpan(blueColorSpan, fanboySocialLabel.length(), fanboySocialStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
250 ultraListStringBuilder.setSpan(blueColorSpan, ultraListLabel.length(), ultraListStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
251 ultraPrivacyStringBuilder.setSpan(blueColorSpan, ultraPrivacyLabel.length(), ultraPrivacyStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
253 // Display the strings in the text boxes.
254 versionTextView.setText(version);
255 brandTextView.setText(brandStringBuilder);
256 manufacturerTextView.setText(manufacturerStringBuilder);
257 modelTextView.setText(modelStringBuilder);
258 deviceTextView.setText(deviceStringBuilder);
259 bootloaderTextView.setText(bootloaderStringBuilder);
260 androidTextView.setText(androidStringBuilder);
261 buildTextView.setText(buildStringBuilder);
262 webViewVersionTextView.setText(webViewVersionStringBuilder);
263 easyListTextView.setText(easyListStringBuilder);
264 easyPrivacyTextView.setText(easyPrivacyStringBuilder);
265 fanboyAnnoyanceTextView.setText(fanboyAnnoyanceStringBuilder);
266 fanboySocialTextView.setText(fanboySocialStringBuilder);
267 ultraListTextView.setText(ultraListStringBuilder);
268 ultraPrivacyTextView.setText(ultraPrivacyStringBuilder);
270 // Only populate the radio text view if there is a radio in the device.
271 if (!radio.isEmpty()) {
272 String radioLabel = getString(R.string.radio) + " ";
273 SpannableStringBuilder radioStringBuilder = new SpannableStringBuilder(radioLabel + radio);
274 radioStringBuilder.setSpan(blueColorSpan, radioLabel.length(), radioStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
275 radioTextView.setText(radioStringBuilder);
276 } else { // This device does not have a radio.
277 radioTextView.setVisibility(View.GONE);
280 // Build.VERSION.SECURITY_PATCH is only available for SDK_INT >= 23.
281 if (Build.VERSION.SDK_INT >= 23) {
282 String securityPatchLabel = getString(R.string.security_patch) + " ";
283 String securityPatch = Build.VERSION.SECURITY_PATCH;
284 SpannableStringBuilder securityPatchStringBuilder = new SpannableStringBuilder(securityPatchLabel + securityPatch);
285 securityPatchStringBuilder.setSpan(blueColorSpan, securityPatchLabel.length(), securityPatchStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
286 securityPatchTextView.setText(securityPatchStringBuilder);
287 } else { // The API < 23.
288 // Hide the security patch text view.
289 securityPatchTextView.setVisibility(View.GONE);
292 // Only populate the WebView provider if the SDK >= 21.
293 if (Build.VERSION.SDK_INT >= 21) {
294 // Create the WebView provider label.
295 String webViewProviderLabel = getString(R.string.webview_provider) + " ";
297 // Get the current WebView package info.
298 PackageInfo webViewPackageInfo = WebViewCompat.getCurrentWebViewPackage(context);
300 // Remove the warning below that the package info might be null.
301 assert webViewPackageInfo != null;
303 // Get the WebView provider name.
304 String webViewPackageName = webViewPackageInfo.packageName;
306 // Create the spannable string builder.
307 SpannableStringBuilder webViewProviderStringBuilder = new SpannableStringBuilder(webViewProviderLabel + webViewPackageName);
309 // Apply the coloration.
310 webViewProviderStringBuilder.setSpan(blueColorSpan, webViewProviderLabel.length(), webViewProviderStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
312 // Display the WebView provider.
313 webViewProviderTextView.setText(webViewProviderStringBuilder);
314 } else { // The API < 21.
315 // Hide the WebView provider text view.
316 webViewProviderTextView.setVisibility(View.GONE);
319 // Only populate the Orbot text view if it is installed.
320 if (!orbot.isEmpty()) {
321 String orbotLabel = getString(R.string.orbot) + " ";
322 SpannableStringBuilder orbotStringBuilder = new SpannableStringBuilder(orbotLabel + orbot);
323 orbotStringBuilder.setSpan(blueColorSpan, orbotLabel.length(), orbotStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
324 orbotTextView.setText(orbotStringBuilder);
325 } else { // Orbot is not installed.
326 orbotTextView.setVisibility(View.GONE);
329 // Only populate the I2P text view if it is installed.
330 if (!i2p.isEmpty()) {
331 String i2pLabel = getString(R.string.i2p) + " ";
332 SpannableStringBuilder i2pStringBuilder = new SpannableStringBuilder(i2pLabel + i2p);
333 i2pStringBuilder.setSpan(blueColorSpan, i2pLabel.length(), i2pStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
334 i2pTextView.setText(i2pStringBuilder);
335 } else { // I2P is not installed.
336 i2pTextView.setVisibility(View.GONE);
339 // Only populate the OpenKeychain text view if it is installed.
340 if (!openKeychain.isEmpty()) {
341 String openKeychainLabel = getString(R.string.openkeychain) + " ";
342 SpannableStringBuilder openKeychainStringBuilder = new SpannableStringBuilder(openKeychainLabel + openKeychain);
343 openKeychainStringBuilder.setSpan(blueColorSpan, openKeychainLabel.length(), openKeychainStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
344 openKeychainTextView.setText(openKeychainStringBuilder);
345 } else { //OpenKeychain is not installed.
346 openKeychainTextView.setVisibility(View.GONE);
349 // Display the package signature.
351 // Get the first package signature. Suppress the lint warning about the need to be careful in implementing comparison of certificates for security purposes.
352 @SuppressLint("PackageManagerGetSignatures") Signature packageSignature = getContext().getPackageManager().getPackageInfo(getContext().getPackageName(),
353 PackageManager.GET_SIGNATURES).signatures[0];
355 // Convert the signature to a byte array input stream.
356 InputStream certificateByteArrayInputStream = new ByteArrayInputStream(packageSignature.toByteArray());
358 // Display the certificate information on the screen.
360 // Instantiate a `CertificateFactory`.
361 CertificateFactory certificateFactory = CertificateFactory.getInstance("X509");
363 // Generate an `X509Certificate`.
364 X509Certificate x509Certificate = (X509Certificate) certificateFactory.generateCertificate(certificateByteArrayInputStream);
366 // Store the individual sections of the certificate that we are interested in.
367 Principal issuerDNPrincipal = x509Certificate.getIssuerDN();
368 Principal subjectDNPrincipal = x509Certificate.getSubjectDN();
369 Date startDate = x509Certificate.getNotBefore();
370 Date endDate = x509Certificate.getNotAfter();
371 int certificateVersion = x509Certificate.getVersion();
372 BigInteger serialNumberBigInteger = x509Certificate.getSerialNumber();
373 String signatureAlgorithmNameString = x509Certificate.getSigAlgName();
375 // Create a `SpannableStringBuilder` for each `TextView` that needs multiple colors of text.
376 SpannableStringBuilder issuerDNStringBuilder = new SpannableStringBuilder(issuerDNLabel + issuerDNPrincipal.toString());
377 SpannableStringBuilder subjectDNStringBuilder = new SpannableStringBuilder(subjectDNLabel + subjectDNPrincipal.toString());
378 SpannableStringBuilder startDateStringBuilder = new SpannableStringBuilder(startDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDate));
379 SpannableStringBuilder endDataStringBuilder = new SpannableStringBuilder(endDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDate));
380 SpannableStringBuilder certificateVersionStringBuilder = new SpannableStringBuilder(certificateVersionLabel + certificateVersion);
381 SpannableStringBuilder serialNumberStringBuilder = new SpannableStringBuilder(serialNumberLabel + serialNumberBigInteger);
382 SpannableStringBuilder signatureAlgorithmStringBuilder = new SpannableStringBuilder(signatureAlgorithmLabel + signatureAlgorithmNameString);
384 // Setup the spans to display the device information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
385 issuerDNStringBuilder.setSpan(blueColorSpan, issuerDNLabel.length(), issuerDNStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
386 subjectDNStringBuilder.setSpan(blueColorSpan, subjectDNLabel.length(), subjectDNStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
387 startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length(), startDateStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
388 endDataStringBuilder.setSpan(blueColorSpan, endDateLabel.length(), endDataStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
389 certificateVersionStringBuilder.setSpan(blueColorSpan, certificateVersionLabel.length(), certificateVersionStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
390 serialNumberStringBuilder.setSpan(blueColorSpan, serialNumberLabel.length(), serialNumberStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
391 signatureAlgorithmStringBuilder.setSpan(blueColorSpan, signatureAlgorithmLabel.length(), signatureAlgorithmStringBuilder.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
393 // Display the strings in the text boxes.
394 certificateIssuerDNTextView.setText(issuerDNStringBuilder);
395 certificateSubjectDNTextView.setText(subjectDNStringBuilder);
396 certificateStartDateTextView.setText(startDateStringBuilder);
397 certificateEndDateTextView.setText(endDataStringBuilder);
398 certificateVersionTextView.setText(certificateVersionStringBuilder);
399 certificateSerialNumberTextView.setText(serialNumberStringBuilder);
400 certificateSignatureAlgorithmTextView.setText(signatureAlgorithmStringBuilder);
401 } catch (CertificateException e) {
402 // Do nothing if there is a certificate error.
404 } catch (PackageManager.NameNotFoundException e) {
405 // Do nothing if `PackageManager` says Privacy Browser isn't installed.
407 } else { // load a WebView for all the other tabs. Tab numbers start at 0.
408 // 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.
409 tabLayout = layoutInflater.inflate(R.layout.bare_webview, container, false);
411 // Get a handle for `tabWebView`.
412 WebView tabWebView = (WebView) tabLayout;
414 // Load the tabs according to the theme.
415 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) { // The dark theme is applied.
416 // Set the background color. The deprecated `.getColor()` must be used until the minimum API >= 23.
417 tabWebView.setBackgroundColor(getResources().getColor(R.color.gray_850));
421 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_permissions_dark.html");
425 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_privacy_policy_dark.html");
429 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_changelog_dark.html");
433 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_licenses_dark.html");
437 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_contributors_dark.html");
441 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_links_dark.html");
444 } else { // The light theme is applied.
447 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_permissions_light.html");
451 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_privacy_policy_light.html");
455 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_changelog_light.html");
459 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_licenses_light.html");
463 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_contributors_light.html");
467 tabWebView.loadUrl("file:///android_asset/" + getString(R.string.android_asset_path) + "/about_links_light.html");
473 // Return the formatted `tabLayout`.