app/src/main/java/com/stoutner/privacybrowser/fragments/AboutVersionFragment.kt

   1 /*
   2  * Copyright 2016-2023 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
   5  *
   6  * Privacy Browser Android 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.
  10  *
  11  * Privacy Browser Android 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.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser Android.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 package com.stoutner.privacybrowser.fragments
  21
  22 import android.annotation.SuppressLint
  23 import android.app.Activity
  24 import android.app.ActivityManager
  25 import android.content.ClipData
  26 import android.content.ClipboardManager
  27 import android.content.Context
  28 import android.content.Intent
  29 import android.content.pm.PackageManager
  30 import android.net.Uri
  31 import android.os.Build
  32 import android.os.Bundle
  33 import android.os.Handler
  34 import android.os.Looper
  35 import android.provider.OpenableColumns
  36 import android.text.SpannableStringBuilder
  37 import android.text.Spanned
  38 import android.text.style.ForegroundColorSpan
  39 import android.view.LayoutInflater
  40 import android.view.Menu
  41 import android.view.MenuInflater
  42 import android.view.MenuItem
  43 import android.view.View
  44 import android.view.ViewGroup
  45 import android.webkit.WebView
  46 import android.widget.TextView
  47
  48 import androidx.activity.result.contract.ActivityResultContracts
  49 import androidx.fragment.app.Fragment
  50 import androidx.webkit.WebViewCompat
  51
  52 import com.google.android.material.snackbar.Snackbar
  53
  54 import com.stoutner.privacybrowser.BuildConfig
  55 import com.stoutner.privacybrowser.R
  56 import com.stoutner.privacybrowser.coroutines.SaveAboutVersionImageCoroutine
  57
  58 import kotlinx.coroutines.CoroutineScope
  59 import kotlinx.coroutines.Dispatchers
  60 import kotlinx.coroutines.launch
  61 import kotlinx.coroutines.withContext
  62
  63 import java.io.ByteArrayInputStream
  64 import java.io.InputStream
  65 import java.lang.Exception
  66 import java.nio.charset.StandardCharsets
  67 import java.security.cert.CertificateException
  68 import java.security.cert.CertificateFactory
  69 import java.security.cert.X509Certificate
  70 import java.text.DateFormat
  71 import java.text.NumberFormat
  72
  73 import kotlin.text.StringBuilder
  74
  75 // Define the class constants.
  76 private const val BLOCKLIST_VERSIONS = "blocklist_versions"
  77 private const val MEBIBYTE = 1048576
  78
  79 class AboutVersionFragment : Fragment() {
  80     // Define the class variables.
  81     private var updateMemoryUsageBoolean = true
  82
  83     // Declare the class variables.
  84     private lateinit var blocklistVersions: Array<String>
  85     private lateinit var aboutVersionLayout: View
  86     private lateinit var appConsumedMemoryLabel: String
  87     private lateinit var appAvailableMemoryLabel: String
  88     private lateinit var appTotalMemoryLabel: String
  89     private lateinit var appMaximumMemoryLabel: String
  90     private lateinit var systemConsumedMemoryLabel: String
  91     private lateinit var systemAvailableMemoryLabel: String
  92     private lateinit var systemTotalMemoryLabel: String
  93     private lateinit var runtime: Runtime
  94     private lateinit var activityManager: ActivityManager
  95     private lateinit var memoryInfo: ActivityManager.MemoryInfo
  96     private lateinit var numberFormat: NumberFormat
  97     private lateinit var blueColorSpan: ForegroundColorSpan
  98
  99     // Declare the class views.
 100     private lateinit var privacyBrowserTextView: TextView
 101     private lateinit var versionTextView: TextView
 102     private lateinit var hardwareTextView: TextView
 103     private lateinit var brandTextView: TextView
 104     private lateinit var manufacturerTextView: TextView
 105     private lateinit var modelTextView: TextView
 106     private lateinit var deviceTextView: TextView
 107     private lateinit var bootloaderTextView: TextView
 108     private lateinit var radioTextView: TextView
 109     private lateinit var softwareTextView: TextView
 110     private lateinit var androidTextView: TextView
 111     private lateinit var securityPatchTextView: TextView
 112     private lateinit var buildTextView: TextView
 113     private lateinit var kernelTextView: TextView
 114     private lateinit var webViewProviderTextView: TextView
 115     private lateinit var webViewVersionTextView: TextView
 116     private lateinit var orbotTextView: TextView
 117     private lateinit var i2pTextView: TextView
 118     private lateinit var openKeychainTextView: TextView
 119     private lateinit var memoryUsageTextView: TextView
 120     private lateinit var appConsumedMemoryTextView: TextView
 121     private lateinit var appAvailableMemoryTextView: TextView
 122     private lateinit var appTotalMemoryTextView: TextView
 123     private lateinit var appMaximumMemoryTextView: TextView
 124     private lateinit var systemConsumedMemoryTextView: TextView
 125     private lateinit var systemAvailableMemoryTextView: TextView
 126     private lateinit var systemTotalMemoryTextView: TextView
 127     private lateinit var blocklistsTextView: TextView
 128     private lateinit var easyListTextView: TextView
 129     private lateinit var easyPrivacyTextView: TextView
 130     private lateinit var fanboyAnnoyanceTextView: TextView
 131     private lateinit var fanboySocialTextView: TextView
 132     private lateinit var ultraListTextView: TextView
 133     private lateinit var ultraPrivacyTextView: TextView
 134     private lateinit var packageSignatureTextView: TextView
 135     private lateinit var certificateIssuerDnTextView: TextView
 136     private lateinit var certificateSubjectDnTextView: TextView
 137     private lateinit var certificateStartDateTextView: TextView
 138     private lateinit var certificateEndDateTextView: TextView
 139     private lateinit var certificateVersionTextView: TextView
 140     private lateinit var certificateSerialNumberTextView: TextView
 141     private lateinit var certificateSignatureAlgorithmTextView: TextView
 142
 143     companion object {
 144         fun createTab(blocklistVersions: Array<String>): AboutVersionFragment {
 145             // Create an arguments bundle.
 146             val argumentsBundle = Bundle()
 147
 148             // Store the arguments in the bundle.
 149             argumentsBundle.putStringArray(BLOCKLIST_VERSIONS, blocklistVersions)
 150
 151             // Create a new instance of the tab fragment.
 152             val aboutVersionFragment = AboutVersionFragment()
 153
 154             // Add the arguments bundle to the fragment.
 155             aboutVersionFragment.arguments = argumentsBundle
 156
 157             // Return the new fragment.
 158             return aboutVersionFragment
 159         }
 160     }
 161
 162     // Define the save about version text activity result launcher.  It must be defined before `onCreate()` is run or the app will crash.
 163     private val saveAboutVersionTextActivityResultLauncher = registerForActivityResult(ActivityResultContracts.CreateDocument("text/plain")) { fileUri: Uri? ->
 164         // Only save the file if the URI is not null, which happens if the user exited the file picker by pressing back.
 165         if (fileUri != null) {
 166             // Initialize the file name string from the file URI last path segment.
 167             var fileNameString = fileUri.lastPathSegment
 168
 169             // Query the exact file name if the API >= 26.
 170             if (Build.VERSION.SDK_INT >= 26) {
 171                 // Get a cursor from the content resolver.
 172                 val contentResolverCursor = requireActivity().contentResolver.query(fileUri, null, null, null)!!
 173
 174                 // Move to the first row.
 175                 contentResolverCursor.moveToFirst()
 176
 177                 // Get the file name from the cursor.
 178                 fileNameString = contentResolverCursor.getString(contentResolverCursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME))
 179
 180                 // Close the cursor.
 181                 contentResolverCursor.close()
 182             }
 183
 184             try {
 185                 // Get the about version string.
 186                 val aboutVersionString = getAboutVersionString()
 187
 188                 // Open an output stream.
 189                 val outputStream = requireActivity().contentResolver.openOutputStream(fileUri)!!
 190
 191                 // Save about version using a coroutine with Dispatchers.IO.
 192                 CoroutineScope(Dispatchers.Main).launch {
 193                     withContext(Dispatchers.IO) {
 194                         // Write the about version string to the output stream.
 195                         outputStream.write(aboutVersionString.toByteArray(StandardCharsets.UTF_8))
 196
 197                         // Close the output stream.
 198                         outputStream.close()
 199                     }
 200                 }
 201
 202                 // Display a snackbar with the saved logcat information.
 203                 Snackbar.make(aboutVersionLayout, getString(R.string.saved, fileNameString), Snackbar.LENGTH_SHORT).show()
 204             } catch (exception: Exception) {
 205                 // Display a snackbar with the error message.
 206                 Snackbar.make(aboutVersionLayout, getString(R.string.error_saving_file, fileNameString, exception.toString()), Snackbar.LENGTH_INDEFINITE).show()
 207             }
 208         }
 209     }
 210
 211     // Define the save about version image activity result launcher.  It must be defined before `onCreate()` is run or the app will crash.
 212     private val saveAboutVersionImageActivityResultLauncher = registerForActivityResult(ActivityResultContracts.CreateDocument("image/png")) { fileUri: Uri? ->
 213         // Save the file if the URI is not null, which happens if the user exits the file picker by pressing back.
 214         if (fileUri != null)
 215             SaveAboutVersionImageCoroutine.saveImage(requireActivity(), fileUri, aboutVersionLayout.findViewById(R.id.about_version_linearlayout))
 216     }
 217
 218     override fun onCreate(savedInstanceState: Bundle?) {
 219         // Run the default commands.
 220         super.onCreate(savedInstanceState)
 221
 222         // Store the arguments in class variables.
 223         blocklistVersions = requireArguments().getStringArray(BLOCKLIST_VERSIONS)!!
 224
 225         // Enable the options menu for this fragment.
 226         setHasOptionsMenu(true)
 227     }
 228
 229     override fun onCreateView(layoutInflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
 230         // Inflate the layout.  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.
 231         aboutVersionLayout = layoutInflater.inflate(R.layout.about_version_scrollview, container, false)
 232
 233         // Get handles for the views.
 234         privacyBrowserTextView = aboutVersionLayout.findViewById(R.id.privacy_browser_textview)
 235         versionTextView = aboutVersionLayout.findViewById(R.id.version)
 236         hardwareTextView = aboutVersionLayout.findViewById(R.id.hardware)
 237         brandTextView = aboutVersionLayout.findViewById(R.id.brand)
 238         manufacturerTextView = aboutVersionLayout.findViewById(R.id.manufacturer)
 239         modelTextView = aboutVersionLayout.findViewById(R.id.model)
 240         deviceTextView = aboutVersionLayout.findViewById(R.id.device)
 241         bootloaderTextView = aboutVersionLayout.findViewById(R.id.bootloader)
 242         radioTextView = aboutVersionLayout.findViewById(R.id.radio)
 243         softwareTextView = aboutVersionLayout.findViewById(R.id.software)
 244         androidTextView = aboutVersionLayout.findViewById(R.id.android)
 245         securityPatchTextView = aboutVersionLayout.findViewById(R.id.security_patch)
 246         buildTextView = aboutVersionLayout.findViewById(R.id.build)
 247         kernelTextView = aboutVersionLayout.findViewById(R.id.kernel)
 248         webViewProviderTextView = aboutVersionLayout.findViewById(R.id.webview_provider)
 249         webViewVersionTextView = aboutVersionLayout.findViewById(R.id.webview_version)
 250         orbotTextView = aboutVersionLayout.findViewById(R.id.orbot)
 251         i2pTextView = aboutVersionLayout.findViewById(R.id.i2p)
 252         openKeychainTextView = aboutVersionLayout.findViewById(R.id.open_keychain)
 253         memoryUsageTextView = aboutVersionLayout.findViewById(R.id.memory_usage)
 254         appConsumedMemoryTextView = aboutVersionLayout.findViewById(R.id.app_consumed_memory)
 255         appAvailableMemoryTextView = aboutVersionLayout.findViewById(R.id.app_available_memory)
 256         appTotalMemoryTextView = aboutVersionLayout.findViewById(R.id.app_total_memory)
 257         appMaximumMemoryTextView = aboutVersionLayout.findViewById(R.id.app_maximum_memory)
 258         systemConsumedMemoryTextView = aboutVersionLayout.findViewById(R.id.system_consumed_memory)
 259         systemAvailableMemoryTextView = aboutVersionLayout.findViewById(R.id.system_available_memory)
 260         systemTotalMemoryTextView = aboutVersionLayout.findViewById(R.id.system_total_memory)
 261         blocklistsTextView = aboutVersionLayout.findViewById(R.id.blocklists)
 262         easyListTextView = aboutVersionLayout.findViewById(R.id.easylist)
 263         easyPrivacyTextView = aboutVersionLayout.findViewById(R.id.easyprivacy)
 264         fanboyAnnoyanceTextView = aboutVersionLayout.findViewById(R.id.fanboy_annoyance)
 265         fanboySocialTextView = aboutVersionLayout.findViewById(R.id.fanboy_social)
 266         ultraListTextView = aboutVersionLayout.findViewById(R.id.ultralist)
 267         ultraPrivacyTextView = aboutVersionLayout.findViewById(R.id.ultraprivacy)
 268         packageSignatureTextView = aboutVersionLayout.findViewById(R.id.package_signature)
 269         certificateIssuerDnTextView = aboutVersionLayout.findViewById(R.id.certificate_issuer_dn)
 270         certificateSubjectDnTextView = aboutVersionLayout.findViewById(R.id.certificate_subject_dn)
 271         certificateStartDateTextView = aboutVersionLayout.findViewById(R.id.certificate_start_date)
 272         certificateEndDateTextView = aboutVersionLayout.findViewById(R.id.certificate_end_date)
 273         certificateVersionTextView = aboutVersionLayout.findViewById(R.id.certificate_version)
 274         certificateSerialNumberTextView = aboutVersionLayout.findViewById(R.id.certificate_serial_number)
 275         certificateSignatureAlgorithmTextView = aboutVersionLayout.findViewById(R.id.certificate_signature_algorithm)
 276
 277         // Setup the labels.
 278         val version = getString(R.string.version_code, BuildConfig.VERSION_NAME, BuildConfig.VERSION_CODE)
 279         val brandLabel = getString(R.string.brand) + "  "
 280         val manufacturerLabel = getString(R.string.manufacturer) + "  "
 281         val modelLabel = getString(R.string.model) + "  "
 282         val deviceLabel = getString(R.string.device) + "  "
 283         val bootloaderLabel = getString(R.string.bootloader) + "  "
 284         val androidLabel = getString(R.string.android) + "  "
 285         val buildLabel = getString(R.string.build) + "  "
 286         val kernelLabel = getString(R.string.kernel) + "  "
 287         val webViewVersionLabel = getString(R.string.webview_version) + "  "
 288         appConsumedMemoryLabel = getString(R.string.app_consumed_memory) + "  "
 289         appAvailableMemoryLabel = getString(R.string.app_available_memory) + "  "
 290         appTotalMemoryLabel = getString(R.string.app_total_memory) + "  "
 291         appMaximumMemoryLabel = getString(R.string.app_maximum_memory) + "  "
 292         systemConsumedMemoryLabel = getString(R.string.system_consumed_memory) + "  "
 293         systemAvailableMemoryLabel = getString(R.string.system_available_memory) + "  "
 294         systemTotalMemoryLabel = getString(R.string.system_total_memory) + "  "
 295         val easyListLabel = getString(R.string.easylist_label) + "  "
 296         val easyPrivacyLabel = getString(R.string.easyprivacy_label) + "  "
 297         val fanboyAnnoyanceLabel = getString(R.string.fanboys_annoyance_label) + "  "
 298         val fanboySocialLabel = getString(R.string.fanboys_social_label) + "  "
 299         val ultraListLabel = getString(R.string.ultralist_label) + "  "
 300         val ultraPrivacyLabel = getString(R.string.ultraprivacy_label) + "  "
 301         val issuerDNLabel = getString(R.string.issuer_dn) + "  "
 302         val subjectDNLabel = getString(R.string.subject_dn) + "  "
 303         val startDateLabel = getString(R.string.start_date) + "  "
 304         val endDateLabel = getString(R.string.end_date) + "  "
 305         val certificateVersionLabel = getString(R.string.certificate_version) + "  "
 306         val serialNumberLabel = getString(R.string.serial_number) + "  "
 307         val signatureAlgorithmLabel = getString(R.string.signature_algorithm) + "  "
 308
 309         // 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.
 310         // Once the minimum API >= 26 this can be accomplished with the WebView package info.
 311         val webViewLayout = layoutInflater.inflate(R.layout.bare_webview, container, false)
 312         val tabLayoutWebView = webViewLayout.findViewById<WebView>(R.id.bare_webview)
 313         val userAgentString = tabLayoutWebView.settings.userAgentString
 314
 315         // Get the device's information and store it in strings.
 316         val brand = Build.BRAND
 317         val manufacturer = Build.MANUFACTURER
 318         val model = Build.MODEL
 319         val device = Build.DEVICE
 320         val bootloader = Build.BOOTLOADER
 321         val radio = Build.getRadioVersion()
 322         val android = getString(R.string.api, Build.VERSION.RELEASE, Build.VERSION.SDK_INT)
 323         val build = Build.DISPLAY
 324         val kernel = System.getProperty("os.version")
 325
 326         // Get the WebView version, selecting the substring that begins after `Chrome/` and goes until the next ` `.
 327         val webView = userAgentString.substring(userAgentString.indexOf("Chrome/") + 7, userAgentString.indexOf(" ", userAgentString.indexOf("Chrome/")))
 328
 329         // Get the Orbot version name if Orbot is installed.
 330         val orbot: String = try {
 331             // Store the version name.  The newer `getPackageInfo()` may be used once the minimum API >= 33.
 332             @Suppress("DEPRECATION")
 333             requireContext().packageManager.getPackageInfo("org.torproject.android", 0).versionName
 334         } catch (exception: PackageManager.NameNotFoundException) {  // Orbot is not installed.
 335             // Store an empty string.
 336             ""
 337         }
 338
 339         // Get the I2P version name if I2P is installed.
 340         val i2p: String = try {
 341             // Check to see if the F-Droid flavor is installed.  The newer `getPackageInfo()` may be used once the minimum API >= 33.
 342             @Suppress("DEPRECATION")
 343             requireContext().getString(R.string.fdroid_flavor, requireContext().packageManager.getPackageInfo("net.i2p.android.router", 0).versionName)
 344         } catch (exception: PackageManager.NameNotFoundException) {  // The F-Droid flavor is not installed.
 345             try {
 346                 // Check to see if the F-Droid flavor is installed.  The newer `getPackageInfo()` may be used once the minimum API >= 33.
 347                 @Suppress("DEPRECATION")
 348                 requireContext().getString(R.string.google_play_flavor, requireContext().packageManager.getPackageInfo("net.i2p.android", 0).versionName)
 349             } catch (exception: PackageManager.NameNotFoundException) {  // The Google Play flavor is not installed either.
 350                 // Store an empty string.
 351                 ""
 352             }
 353         }
 354
 355         // Get the OpenKeychain version name if it is installed.
 356         val openKeychain: String = try {
 357             // Store the version name.  The newer `getPackageInfo()` may be used once the minimum API >= 33.
 358             @Suppress("DEPRECATION")
 359             requireContext().packageManager.getPackageInfo("org.sufficientlysecure.keychain", 0).versionName
 360         } catch (exception: PackageManager.NameNotFoundException) {  // OpenKeychain is not installed.
 361             // Store an empty string.
 362             ""
 363         }
 364
 365         // Create a spannable string builder for the hardware and software text views that need multiple colors of text.
 366         val brandStringBuilder = SpannableStringBuilder(brandLabel + brand)
 367         val manufacturerStringBuilder = SpannableStringBuilder(manufacturerLabel + manufacturer)
 368         val modelStringBuilder = SpannableStringBuilder(modelLabel + model)
 369         val deviceStringBuilder = SpannableStringBuilder(deviceLabel + device)
 370         val bootloaderStringBuilder = SpannableStringBuilder(bootloaderLabel + bootloader)
 371         val androidStringBuilder = SpannableStringBuilder(androidLabel + android)
 372         val buildStringBuilder = SpannableStringBuilder(buildLabel + build)
 373         val kernelStringBuilder = SpannableStringBuilder(kernelLabel + kernel)
 374         val webViewVersionStringBuilder = SpannableStringBuilder(webViewVersionLabel + webView)
 375         val easyListStringBuilder = SpannableStringBuilder(easyListLabel + blocklistVersions[0])
 376         val easyPrivacyStringBuilder = SpannableStringBuilder(easyPrivacyLabel + blocklistVersions[1])
 377         val fanboyAnnoyanceStringBuilder = SpannableStringBuilder(fanboyAnnoyanceLabel + blocklistVersions[2])
 378         val fanboySocialStringBuilder = SpannableStringBuilder(fanboySocialLabel + blocklistVersions[3])
 379         val ultraListStringBuilder = SpannableStringBuilder(ultraListLabel + blocklistVersions[4])
 380         val ultraPrivacyStringBuilder = SpannableStringBuilder(ultraPrivacyLabel + blocklistVersions[5])
 381
 382         // Set the blue color span according to the theme.  The deprecated `getColor()` must be used until the minimum API >= 23.
 383         blueColorSpan = ForegroundColorSpan(requireContext().getColor(R.color.alt_blue_text))
 384
 385         // Set the spans to display the device information in blue.  `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
 386         brandStringBuilder.setSpan(blueColorSpan, brandLabel.length, brandStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 387         manufacturerStringBuilder.setSpan(blueColorSpan, manufacturerLabel.length, manufacturerStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 388         modelStringBuilder.setSpan(blueColorSpan, modelLabel.length, modelStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 389         deviceStringBuilder.setSpan(blueColorSpan, deviceLabel.length, deviceStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 390         bootloaderStringBuilder.setSpan(blueColorSpan, bootloaderLabel.length, bootloaderStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 391         androidStringBuilder.setSpan(blueColorSpan, androidLabel.length, androidStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 392         buildStringBuilder.setSpan(blueColorSpan, buildLabel.length, buildStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 393         kernelStringBuilder.setSpan(blueColorSpan, kernelLabel.length, kernelStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 394         webViewVersionStringBuilder.setSpan(blueColorSpan, webViewVersionLabel.length, webViewVersionStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 395         easyListStringBuilder.setSpan(blueColorSpan, easyListLabel.length, easyListStringBuilder.length, Spanned.SPAN_INCLUSIVE_EXCLUSIVE)
 396         easyPrivacyStringBuilder.setSpan(blueColorSpan, easyPrivacyLabel.length, easyPrivacyStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 397         fanboyAnnoyanceStringBuilder.setSpan(blueColorSpan, fanboyAnnoyanceLabel.length, fanboyAnnoyanceStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 398         fanboySocialStringBuilder.setSpan(blueColorSpan, fanboySocialLabel.length, fanboySocialStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 399         ultraListStringBuilder.setSpan(blueColorSpan, ultraListLabel.length, ultraListStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 400         ultraPrivacyStringBuilder.setSpan(blueColorSpan, ultraPrivacyLabel.length, ultraPrivacyStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 401
 402         // Display the strings in the text boxes.
 403         versionTextView.text = version
 404         brandTextView.text = brandStringBuilder
 405         manufacturerTextView.text = manufacturerStringBuilder
 406         modelTextView.text = modelStringBuilder
 407         deviceTextView.text = deviceStringBuilder
 408         bootloaderTextView.text = bootloaderStringBuilder
 409         androidTextView.text = androidStringBuilder
 410         buildTextView.text = buildStringBuilder
 411         kernelTextView.text = kernelStringBuilder
 412         webViewVersionTextView.text = webViewVersionStringBuilder
 413         easyListTextView.text = easyListStringBuilder
 414         easyPrivacyTextView.text = easyPrivacyStringBuilder
 415         fanboyAnnoyanceTextView.text = fanboyAnnoyanceStringBuilder
 416         fanboySocialTextView.text = fanboySocialStringBuilder
 417         ultraListTextView.text = ultraListStringBuilder
 418         ultraPrivacyTextView.text = ultraPrivacyStringBuilder
 419
 420         // Only populate the radio text view if there is a radio in the device.
 421         // Null must be checked because some Samsung tablets report a null value for the radio instead of an empty string.  Grrrr.  <https://redmine.stoutner.com/issues/701>
 422         if (radio != null && radio.isNotEmpty()) {
 423             // Setup the label.
 424             val radioLabel = getString(R.string.radio) + "  "
 425
 426             // Create a spannable string builder.
 427             val radioStringBuilder = SpannableStringBuilder(radioLabel + radio)
 428
 429             // Set the span to display the radio in blue.
 430             radioStringBuilder.setSpan(blueColorSpan, radioLabel.length, radioStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 431
 432             // Display the string in the text view.
 433             radioTextView.text = radioStringBuilder
 434         } else {  // This device does not have a radio.
 435             // Hide the radio text view.
 436             radioTextView.visibility = View.GONE
 437         }
 438
 439         // Setup the label.
 440         val securityPatchLabel = getString(R.string.security_patch) + "  "
 441
 442         // Get the security patch version.
 443         val securityPatch = Build.VERSION.SECURITY_PATCH
 444
 445         // Create a spannable string builder.
 446         val securityPatchStringBuilder = SpannableStringBuilder(securityPatchLabel + securityPatch)
 447
 448         // Set the span to display the security patch version in blue.
 449         securityPatchStringBuilder.setSpan(blueColorSpan, securityPatchLabel.length, securityPatchStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 450
 451         // Display the string in the text view.
 452         securityPatchTextView.text = securityPatchStringBuilder
 453
 454         // Create the WebView provider label.
 455         val webViewProviderLabel = getString(R.string.webview_provider) + "  "
 456
 457         // Get the current WebView package info.
 458         val webViewPackageInfo = WebViewCompat.getCurrentWebViewPackage(requireContext())!!
 459
 460         // Get the WebView provider name.
 461         val webViewPackageName = webViewPackageInfo.packageName
 462
 463         // Create the spannable string builder.
 464         val webViewProviderStringBuilder = SpannableStringBuilder(webViewProviderLabel + webViewPackageName)
 465
 466         // Apply the coloration.
 467         webViewProviderStringBuilder.setSpan(blueColorSpan, webViewProviderLabel.length, webViewProviderStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 468
 469         // Display the WebView provider.
 470         webViewProviderTextView.text = webViewProviderStringBuilder
 471
 472         // Only populate the Orbot text view if it is installed.
 473         if (orbot.isNotEmpty()) {
 474             // Setup the label.
 475             val orbotLabel = getString(R.string.orbot) + "  "
 476
 477             // Create a spannable string builder.
 478             val orbotStringBuilder = SpannableStringBuilder(orbotLabel + orbot)
 479
 480             // Set the span to display the Orbot version.
 481             orbotStringBuilder.setSpan(blueColorSpan, orbotLabel.length, orbotStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 482
 483             // Display the string in the text view.
 484             orbotTextView.text = orbotStringBuilder
 485         } else {  // Orbot is not installed.
 486             // Hide the Orbot text view.
 487             orbotTextView.visibility = View.GONE
 488         }
 489
 490         // Only populate the I2P text view if it is installed.
 491         if (i2p.isNotEmpty()) {
 492             // Setup the label.
 493             val i2pLabel = getString(R.string.i2p) + "  "
 494
 495             // Create a spannable string builder.
 496             val i2pStringBuilder = SpannableStringBuilder(i2pLabel + i2p)
 497
 498             // Set the span to display the I2P version.
 499             i2pStringBuilder.setSpan(blueColorSpan, i2pLabel.length, i2pStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 500
 501             // Display the string in the text view.
 502             i2pTextView.text = i2pStringBuilder
 503         } else {  // I2P is not installed.
 504             // Hide the I2P text view.
 505             i2pTextView.visibility = View.GONE
 506         }
 507
 508         // Only populate the OpenKeychain text view if it is installed.
 509         if (openKeychain.isNotEmpty()) {
 510             // Setup the label.
 511             val openKeychainLabel = getString(R.string.openkeychain) + "  "
 512
 513             // Create a spannable string builder.
 514             val openKeychainStringBuilder = SpannableStringBuilder(openKeychainLabel + openKeychain)
 515
 516             // Set the span to display the OpenKeychain version.
 517             openKeychainStringBuilder.setSpan(blueColorSpan, openKeychainLabel.length, openKeychainStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 518
 519             // Display the string in the text view.
 520             openKeychainTextView.text = openKeychainStringBuilder
 521         } else {  //OpenKeychain is not installed.
 522             // Hide the OpenKeychain text view.
 523             openKeychainTextView.visibility = View.GONE
 524         }
 525
 526         // Display the package signature.
 527         try {
 528             // Get the first package signature.  Suppress the lint warning about the need to be careful in implementing comparison of certificates for security purposes.
 529             // Once the minimum API >= 28, `GET_SIGNING_CERTIFICATES` can be used instead.  Once the minimum API >= 33, the newer `getPackageInfo()` may be used.
 530             @Suppress("DEPRECATION")
 531             @SuppressLint("PackageManagerGetSignatures") val packageSignature = requireContext().packageManager.getPackageInfo(requireContext().packageName,PackageManager.GET_SIGNATURES)
 532                 .signatures[0]
 533
 534             // Convert the signature to a byte array input stream.
 535             val certificateByteArrayInputStream: InputStream = ByteArrayInputStream(packageSignature.toByteArray())
 536
 537             // Display the certificate information on the screen.
 538             try {
 539                 // Instantiate a certificate factory.
 540                 val certificateFactory = CertificateFactory.getInstance("X509")
 541
 542                 // Generate an X509 certificate.
 543                 val x509Certificate = certificateFactory.generateCertificate(certificateByteArrayInputStream) as X509Certificate
 544
 545                 // Store the individual sections of the certificate.
 546                 val issuerDNPrincipal = x509Certificate.issuerDN
 547                 val subjectDNPrincipal = x509Certificate.subjectDN
 548                 val startDate = x509Certificate.notBefore
 549                 val endDate = x509Certificate.notAfter
 550                 val certificateVersion = x509Certificate.version
 551                 val serialNumberBigInteger = x509Certificate.serialNumber
 552                 val signatureAlgorithmNameString = x509Certificate.sigAlgName
 553
 554                 // Create a spannable string builder for each text view that needs multiple colors of text.
 555                 val issuerDNStringBuilder = SpannableStringBuilder(issuerDNLabel + issuerDNPrincipal.toString())
 556                 val subjectDNStringBuilder = SpannableStringBuilder(subjectDNLabel + subjectDNPrincipal.toString())
 557                 val startDateStringBuilder = SpannableStringBuilder(startDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDate))
 558                 val endDataStringBuilder = SpannableStringBuilder(endDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDate))
 559                 val certificateVersionStringBuilder = SpannableStringBuilder(certificateVersionLabel + certificateVersion)
 560                 val serialNumberStringBuilder = SpannableStringBuilder(serialNumberLabel + serialNumberBigInteger)
 561                 val signatureAlgorithmStringBuilder = SpannableStringBuilder(signatureAlgorithmLabel + signatureAlgorithmNameString)
 562
 563                 // Setup the spans to display the device information in blue.  `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
 564                 issuerDNStringBuilder.setSpan(blueColorSpan, issuerDNLabel.length, issuerDNStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 565                 subjectDNStringBuilder.setSpan(blueColorSpan, subjectDNLabel.length, subjectDNStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 566                 startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length, startDateStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 567                 endDataStringBuilder.setSpan(blueColorSpan, endDateLabel.length, endDataStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 568                 certificateVersionStringBuilder.setSpan(blueColorSpan, certificateVersionLabel.length, certificateVersionStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 569                 serialNumberStringBuilder.setSpan(blueColorSpan, serialNumberLabel.length, serialNumberStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 570                 signatureAlgorithmStringBuilder.setSpan(blueColorSpan, signatureAlgorithmLabel.length, signatureAlgorithmStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 571
 572                 // Display the strings in the text boxes.
 573                 certificateIssuerDnTextView.text = issuerDNStringBuilder
 574                 certificateSubjectDnTextView.text = subjectDNStringBuilder
 575                 certificateStartDateTextView.text = startDateStringBuilder
 576                 certificateEndDateTextView.text = endDataStringBuilder
 577                 certificateVersionTextView.text = certificateVersionStringBuilder
 578                 certificateSerialNumberTextView.text = serialNumberStringBuilder
 579                 certificateSignatureAlgorithmTextView.text = signatureAlgorithmStringBuilder
 580             } catch (certificateException: CertificateException) {
 581                 // Do nothing if there is a certificate error.
 582             }
 583
 584             // Get a handle for the runtime.
 585             runtime = Runtime.getRuntime()
 586
 587             // Get a handle for the activity manager.
 588             activityManager = requireActivity().getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
 589
 590             // Instantiate a memory info variable.
 591             memoryInfo = ActivityManager.MemoryInfo()
 592
 593             // Define a number format.
 594             numberFormat = NumberFormat.getInstance()
 595
 596             // Set the minimum and maximum number of fraction digits.
 597             numberFormat.minimumFractionDigits = 2
 598             numberFormat.maximumFractionDigits = 2
 599
 600             // Update the memory usage.
 601             updateMemoryUsage(requireActivity())
 602         } catch (e: PackageManager.NameNotFoundException) {
 603             // Do nothing if the package manager says Privacy Browser isn't installed.
 604         }
 605
 606         // Scroll the tab if the saved instance state is not null.
 607         if (savedInstanceState != null) {
 608             aboutVersionLayout.post {
 609                 aboutVersionLayout.scrollX = savedInstanceState.getInt("scroll_x")
 610                 aboutVersionLayout.scrollY = savedInstanceState.getInt("scroll_y")
 611             }
 612         }
 613
 614         // Return the tab layout.
 615         return aboutVersionLayout
 616     }
 617
 618     override fun onCreateOptionsMenu(menu: Menu, menuInflater: MenuInflater) {
 619         // Inflate the about version menu.
 620         menuInflater.inflate(R.menu.about_version_options_menu, menu)
 621
 622         // Run the default commands.
 623         super.onCreateOptionsMenu(menu, menuInflater)
 624     }
 625
 626     override fun onOptionsItemSelected(menuItem: MenuItem): Boolean {
 627         // Run the appropriate commands.
 628         when (menuItem.itemId) {
 629             R.id.copy -> {  // Copy.
 630                 // Get the about version string.
 631                 val aboutVersionString = getAboutVersionString()
 632
 633                 // Get a handle for the clipboard manager.
 634                 val clipboardManager = (requireActivity().getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager)
 635
 636                 // Save the about version string in a clip data.
 637                 val aboutVersionClipData = ClipData.newPlainText(getString(R.string.about), aboutVersionString)
 638
 639                 // Place the clip data on the clipboard.
 640                 clipboardManager.setPrimaryClip(aboutVersionClipData)
 641
 642                 // Display a snackbar.
 643                 Snackbar.make(aboutVersionLayout, R.string.version_info_copied, Snackbar.LENGTH_SHORT).show()
 644
 645                 // Consume the event.
 646                 return true
 647             }
 648
 649             R.id.share -> {  // Share.
 650                 // Get the about version string.
 651                 val aboutString = getAboutVersionString()
 652
 653                 // Create an email intent.
 654                 val emailIntent = Intent(Intent.ACTION_SEND)
 655
 656                 // Add the about version string to the intent.
 657                 emailIntent.putExtra(Intent.EXTRA_TEXT, aboutString)
 658
 659                 // Set the MIME type.
 660                 emailIntent.type = "text/plain"
 661
 662                 // Set the intent to open in a new task.
 663                 emailIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
 664
 665                 // Make it so.
 666                 startActivity(Intent.createChooser(emailIntent, getString(R.string.share)))
 667
 668                 // Consume the event.
 669                 return true
 670             }
 671
 672             R.id.save_text -> {  // Save text.
 673                 // Open the file picker.
 674                 saveAboutVersionTextActivityResultLauncher.launch(getString(R.string.privacy_browser_version_txt, BuildConfig.VERSION_NAME))
 675
 676                 // Consume the event.
 677                 return true
 678             }
 679
 680             R.id.save_image -> {  // Save image.
 681                 // Open the file picker.
 682                 saveAboutVersionImageActivityResultLauncher.launch(getString(R.string.privacy_browser_version_png, BuildConfig.VERSION_NAME))
 683
 684                 // Consume the event.
 685                 return true
 686             }
 687             else -> {  // The home button was selected.
 688                 // Run the parents class on return.
 689                 return super.onOptionsItemSelected(menuItem)
 690             }
 691         }
 692     }
 693
 694     override fun onSaveInstanceState(savedInstanceState: Bundle) {
 695         // Run the default commands.
 696         super.onSaveInstanceState(savedInstanceState)
 697
 698         // Save the scroll positions.
 699         savedInstanceState.putInt("scroll_x", aboutVersionLayout.scrollX)
 700         savedInstanceState.putInt("scroll_y", aboutVersionLayout.scrollY)
 701     }
 702
 703     override fun onPause() {
 704         // Run the default commands.
 705         super.onPause()
 706
 707         // Pause the updating of the memory usage.
 708         updateMemoryUsageBoolean = false
 709     }
 710
 711     override fun onResume() {
 712         // Run the default commands.
 713         super.onResume()
 714
 715         // Resume the updating of the memory usage.
 716         updateMemoryUsageBoolean = true
 717     }
 718
 719     private fun updateMemoryUsage(activity: Activity) {
 720         try {
 721             // Update the memory usage if enabled.
 722             if (updateMemoryUsageBoolean) {
 723                 // Populate the memory info variable.
 724                 activityManager.getMemoryInfo(memoryInfo)
 725
 726                 // Get the app memory information.
 727                 val appAvailableMemoryLong = runtime.freeMemory()
 728                 val appTotalMemoryLong = runtime.totalMemory()
 729                 val appMaximumMemoryLong = runtime.maxMemory()
 730
 731                 // Calculate the app consumed memory.
 732                 val appConsumedMemoryLong = appTotalMemoryLong - appAvailableMemoryLong
 733
 734                 // Get the system memory information.
 735                 val systemTotalMemoryLong = memoryInfo.totalMem
 736                 val systemAvailableMemoryLong = memoryInfo.availMem
 737
 738                 // Calculate the system consumed memory.
 739                 val systemConsumedMemoryLong = systemTotalMemoryLong - systemAvailableMemoryLong
 740
 741                 // Convert the memory information into mebibytes.
 742                 val appConsumedMemoryFloat = appConsumedMemoryLong.toFloat() / MEBIBYTE
 743                 val appAvailableMemoryFloat = appAvailableMemoryLong.toFloat() / MEBIBYTE
 744                 val appTotalMemoryFloat = appTotalMemoryLong.toFloat() / MEBIBYTE
 745                 val appMaximumMemoryFloat = appMaximumMemoryLong.toFloat() / MEBIBYTE
 746                 val systemConsumedMemoryFloat = systemConsumedMemoryLong.toFloat() / MEBIBYTE
 747                 val systemAvailableMemoryFloat = systemAvailableMemoryLong.toFloat() / MEBIBYTE
 748                 val systemTotalMemoryFloat = systemTotalMemoryLong.toFloat() / MEBIBYTE
 749
 750                 // Get the mebibyte string.
 751                 val mebibyte = getString(R.string.mebibyte)
 752
 753                 // Calculate the mebibyte length.
 754                 val mebibyteLength = mebibyte.length
 755
 756                 // Create spannable string builders.
 757                 val appConsumedMemoryStringBuilder = SpannableStringBuilder(appConsumedMemoryLabel + numberFormat.format(appConsumedMemoryFloat.toDouble()) + " " + mebibyte)
 758                 val appAvailableMemoryStringBuilder = SpannableStringBuilder(appAvailableMemoryLabel + numberFormat.format(appAvailableMemoryFloat.toDouble()) + " " + mebibyte)
 759                 val appTotalMemoryStringBuilder = SpannableStringBuilder(appTotalMemoryLabel + numberFormat.format(appTotalMemoryFloat.toDouble()) + " " + mebibyte)
 760                 val appMaximumMemoryStringBuilder = SpannableStringBuilder(appMaximumMemoryLabel + numberFormat.format(appMaximumMemoryFloat.toDouble()) + " " + mebibyte)
 761                 val systemConsumedMemoryStringBuilder = SpannableStringBuilder(systemConsumedMemoryLabel + numberFormat.format(systemConsumedMemoryFloat.toDouble()) + " " + mebibyte)
 762                 val systemAvailableMemoryStringBuilder = SpannableStringBuilder(systemAvailableMemoryLabel + numberFormat.format(systemAvailableMemoryFloat.toDouble()) + " " + mebibyte)
 763                 val systemTotalMemoryStringBuilder = SpannableStringBuilder(systemTotalMemoryLabel + numberFormat.format(systemTotalMemoryFloat.toDouble()) + " " + mebibyte)
 764
 765                 // Setup the spans to display the memory information in blue.  `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
 766                 appConsumedMemoryStringBuilder.setSpan(blueColorSpan, appConsumedMemoryLabel.length, appConsumedMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 767                 appAvailableMemoryStringBuilder.setSpan(blueColorSpan, appAvailableMemoryLabel.length, appAvailableMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 768                 appTotalMemoryStringBuilder.setSpan(blueColorSpan, appTotalMemoryLabel.length, appTotalMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 769                 appMaximumMemoryStringBuilder.setSpan(blueColorSpan, appMaximumMemoryLabel.length, appMaximumMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 770                 systemConsumedMemoryStringBuilder.setSpan(blueColorSpan, systemConsumedMemoryLabel.length, systemConsumedMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 771                 systemAvailableMemoryStringBuilder.setSpan(blueColorSpan, systemAvailableMemoryLabel.length, systemAvailableMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 772                 systemTotalMemoryStringBuilder.setSpan(blueColorSpan, systemTotalMemoryLabel.length, systemTotalMemoryStringBuilder.length - mebibyteLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
 773
 774                 // Display the string in the text boxes.
 775                 appConsumedMemoryTextView.text = appConsumedMemoryStringBuilder
 776                 appAvailableMemoryTextView.text = appAvailableMemoryStringBuilder
 777                 appTotalMemoryTextView.text = appTotalMemoryStringBuilder
 778                 appMaximumMemoryTextView.text = appMaximumMemoryStringBuilder
 779                 systemConsumedMemoryTextView.text = systemConsumedMemoryStringBuilder
 780                 systemAvailableMemoryTextView.text = systemAvailableMemoryStringBuilder
 781                 systemTotalMemoryTextView.text = systemTotalMemoryStringBuilder
 782             }
 783
 784             // Schedule another memory update if the activity has not been destroyed.
 785             if (!activity.isDestroyed) {
 786                 // Create a handler to update the memory usage.
 787                 val updateMemoryUsageHandler = Handler(Looper.getMainLooper())
 788
 789                 // Create a runnable to update the memory usage.
 790                 val updateMemoryUsageRunnable = Runnable { updateMemoryUsage(activity) }
 791
 792                 // Update the memory usage after 1000 milliseconds
 793                 updateMemoryUsageHandler.postDelayed(updateMemoryUsageRunnable, 1000)
 794             }
 795         } catch (exception: Exception) {
 796             // Do nothing.
 797         }
 798     }
 799
 800     private fun getAboutVersionString(): String {
 801         // Initialize an about version string builder.
 802         val aboutVersionStringBuilder = StringBuilder()
 803
 804         // Populate the about version string builder.
 805         aboutVersionStringBuilder.append(privacyBrowserTextView.text)
 806         aboutVersionStringBuilder.append("\n")
 807         aboutVersionStringBuilder.append(versionTextView.text)
 808         aboutVersionStringBuilder.append("\n\n")
 809         aboutVersionStringBuilder.append(hardwareTextView.text)
 810         aboutVersionStringBuilder.append("\n")
 811         aboutVersionStringBuilder.append(brandTextView.text)
 812         aboutVersionStringBuilder.append("\n")
 813         aboutVersionStringBuilder.append(manufacturerTextView.text)
 814         aboutVersionStringBuilder.append("\n")
 815         aboutVersionStringBuilder.append(modelTextView.text)
 816         aboutVersionStringBuilder.append("\n")
 817         aboutVersionStringBuilder.append(deviceTextView.text)
 818         aboutVersionStringBuilder.append("\n")
 819         aboutVersionStringBuilder.append(bootloaderTextView.text)
 820         aboutVersionStringBuilder.append("\n")
 821         if (radioTextView.visibility == View.VISIBLE) {
 822             aboutVersionStringBuilder.append(radioTextView.text)
 823             aboutVersionStringBuilder.append("\n")
 824         }
 825         aboutVersionStringBuilder.append("\n")
 826         aboutVersionStringBuilder.append(softwareTextView.text)
 827         aboutVersionStringBuilder.append("\n")
 828         aboutVersionStringBuilder.append(androidTextView.text)
 829         aboutVersionStringBuilder.append("\n")
 830         if (securityPatchTextView.visibility == View.VISIBLE) {
 831             aboutVersionStringBuilder.append(securityPatchTextView.text)
 832             aboutVersionStringBuilder.append("\n")
 833         }
 834         aboutVersionStringBuilder.append(buildTextView.text)
 835         aboutVersionStringBuilder.append("\n")
 836         aboutVersionStringBuilder.append(kernelTextView.text)
 837         aboutVersionStringBuilder.append("\n")
 838         if (webViewProviderTextView.visibility == View.VISIBLE) {
 839             aboutVersionStringBuilder.append(webViewProviderTextView.text)
 840             aboutVersionStringBuilder.append("\n")
 841         }
 842         aboutVersionStringBuilder.append(webViewVersionTextView.text)
 843         aboutVersionStringBuilder.append("\n")
 844         if (orbotTextView.visibility == View.VISIBLE) {
 845             aboutVersionStringBuilder.append(orbotTextView.text)
 846             aboutVersionStringBuilder.append("\n")
 847         }
 848         if (i2pTextView.visibility == View.VISIBLE) {
 849             aboutVersionStringBuilder.append(i2pTextView.text)
 850             aboutVersionStringBuilder.append("\n")
 851         }
 852         if (openKeychainTextView.visibility == View.VISIBLE) {
 853             aboutVersionStringBuilder.append(openKeychainTextView.text)
 854             aboutVersionStringBuilder.append("\n")
 855         }
 856         aboutVersionStringBuilder.append("\n")
 857         aboutVersionStringBuilder.append(memoryUsageTextView.text)
 858         aboutVersionStringBuilder.append("\n")
 859         aboutVersionStringBuilder.append(appConsumedMemoryTextView.text)
 860         aboutVersionStringBuilder.append("\n")
 861         aboutVersionStringBuilder.append(appAvailableMemoryTextView.text)
 862         aboutVersionStringBuilder.append("\n")
 863         aboutVersionStringBuilder.append(appTotalMemoryTextView.text)
 864         aboutVersionStringBuilder.append("\n")
 865         aboutVersionStringBuilder.append(appMaximumMemoryTextView.text)
 866         aboutVersionStringBuilder.append("\n")
 867         aboutVersionStringBuilder.append(systemConsumedMemoryTextView.text)
 868         aboutVersionStringBuilder.append("\n")
 869         aboutVersionStringBuilder.append(systemAvailableMemoryTextView.text)
 870         aboutVersionStringBuilder.append("\n")
 871         aboutVersionStringBuilder.append(systemTotalMemoryTextView.text)
 872         aboutVersionStringBuilder.append("\n\n")
 873         aboutVersionStringBuilder.append(blocklistsTextView.text)
 874         aboutVersionStringBuilder.append("\n")
 875         aboutVersionStringBuilder.append(easyListTextView.text)
 876         aboutVersionStringBuilder.append("\n")
 877         aboutVersionStringBuilder.append(easyPrivacyTextView.text)
 878         aboutVersionStringBuilder.append("\n")
 879         aboutVersionStringBuilder.append(fanboyAnnoyanceTextView.text)
 880         aboutVersionStringBuilder.append("\n")
 881         aboutVersionStringBuilder.append(fanboySocialTextView.text)
 882         aboutVersionStringBuilder.append("\n")
 883         aboutVersionStringBuilder.append(ultraListTextView.text)
 884         aboutVersionStringBuilder.append("\n")
 885         aboutVersionStringBuilder.append(ultraPrivacyTextView.text)
 886         aboutVersionStringBuilder.append("\n\n")
 887         aboutVersionStringBuilder.append(packageSignatureTextView.text)
 888         aboutVersionStringBuilder.append("\n")
 889         aboutVersionStringBuilder.append(certificateIssuerDnTextView.text)
 890         aboutVersionStringBuilder.append("\n")
 891         aboutVersionStringBuilder.append(certificateSubjectDnTextView.text)
 892         aboutVersionStringBuilder.append("\n")
 893         aboutVersionStringBuilder.append(certificateStartDateTextView.text)
 894         aboutVersionStringBuilder.append("\n")
 895         aboutVersionStringBuilder.append(certificateEndDateTextView.text)
 896         aboutVersionStringBuilder.append("\n")
 897         aboutVersionStringBuilder.append(certificateVersionTextView.text)
 898         aboutVersionStringBuilder.append("\n")
 899         aboutVersionStringBuilder.append(certificateSerialNumberTextView.text)
 900         aboutVersionStringBuilder.append("\n")
 901         aboutVersionStringBuilder.append(certificateSignatureAlgorithmTextView.text)
 902
 903         // Return the string.
 904         return aboutVersionStringBuilder.toString()
 905     }
 906 }