--- /dev/null
+/*
+ * Copyright © 2017-2021 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ *
+ * Privacy Browser is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Privacy Browser is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacybrowser.dialogs
+
+import android.annotation.SuppressLint
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
+import android.content.res.Configuration
+import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.Drawable
+import android.os.Bundle
+import android.view.WindowManager
+
+import androidx.appcompat.app.AlertDialog
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+import androidx.viewpager.widget.ViewPager
+
+import com.google.android.material.tabs.TabLayout
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.activities.MainWebViewActivity
+import com.stoutner.privacybrowser.adapters.PinnedMismatchPagerAdapter
+import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper
+import com.stoutner.privacybrowser.views.NestedScrollWebView
+
+// Declare the class constants.
+private const val WEBVIEW_FRAGMENT_ID = "webview_fragment_id"
+
+class PinnedMismatchDialog : DialogFragment() {
+ // Declare the class variables.
+ private lateinit var pinnedMismatchListener: PinnedMismatchListener
+
+ // The public interface is used to send information back to the parent activity.
+ interface PinnedMismatchListener {
+ fun pinnedErrorGoBack()
+ }
+
+ override fun onAttach(context: Context) {
+ // Run the default commands.
+ super.onAttach(context)
+
+ // Get a handle for the listener from the launching context.
+ pinnedMismatchListener = context as PinnedMismatchListener
+ }
+
+ companion object {
+ // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin. Also, the function can then be moved out of a companion object and just become a package-level function.
+ @JvmStatic
+ fun displayDialog(webViewFragmentId: Long): PinnedMismatchDialog {
+ // Create an arguments bundle.
+ val argumentsBundle = Bundle()
+
+ // Store the WebView fragment ID in the bundle.
+ argumentsBundle.putLong(WEBVIEW_FRAGMENT_ID, webViewFragmentId)
+
+ // Create a new instance of the pinned mismatch dialog.
+ val pinnedMismatchDialog = PinnedMismatchDialog()
+
+ // Add the arguments bundle to the new instance.
+ pinnedMismatchDialog.arguments = argumentsBundle
+
+ // Make it so.
+ return pinnedMismatchDialog
+ }
+ }
+
+ // `@SuppressLint("InflateParams")` removes the warning about using `null` as the parent view group when inflating the alert dialog.
+ @SuppressLint("InflateParams")
+ override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+ // Get the WebView fragment ID.
+ val webViewFragmentId = requireArguments().getLong(WEBVIEW_FRAGMENT_ID)
+
+ // Get the current position of this WebView fragment.
+ val webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(webViewFragmentId)
+
+ // Get the WebView tab fragment.
+ val webViewTabFragment = MainWebViewActivity.webViewPagerAdapter.getPageFragment(webViewPosition)
+
+ // Get the fragment view.
+ val fragmentView = webViewTabFragment.requireView()
+
+ // Get a handle for the current WebView.
+ val nestedScrollWebView = fragmentView.findViewById<NestedScrollWebView>(R.id.nestedscroll_webview)!!
+
+ // Use an alert dialog builder to create the alert dialog.
+ val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
+
+ // Get the favorite icon.
+ val favoriteIconBitmap = nestedScrollWebView.favoriteOrDefaultIcon
+
+ // Get the default favorite icon drawable. `ContextCompat` must be used until API >= 21.
+ val defaultFavoriteIconDrawable = ContextCompat.getDrawable(requireContext(), R.drawable.world)
+
+ // Cast the favorite icon drawable to a bitmap drawable.
+ val defaultFavoriteIconBitmapDrawable = (defaultFavoriteIconDrawable as BitmapDrawable)
+
+ // Store the default icon bitmap.
+ val defaultFavoriteIconBitmap = defaultFavoriteIconBitmapDrawable.bitmap
+
+ // Set the favorite icon as the dialog icon if it exists.
+ if (favoriteIconBitmap.sameAs(defaultFavoriteIconBitmap)) { // There is no website favorite icon.
+ // Get the current theme status.
+ val currentThemeStatus = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+
+ // Set the icon according to the theme.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
+ dialogBuilder.setIcon(R.drawable.ssl_certificate_enabled_day)
+ } else {
+ dialogBuilder.setIcon(R.drawable.ssl_certificate_enabled_night)
+ }
+ } else { // There is a favorite icon.
+ // Create a drawable version of the favorite icon.
+ val favoriteIconDrawable: Drawable = BitmapDrawable(resources, favoriteIconBitmap)
+
+ // Set the icon.
+ dialogBuilder.setIcon(favoriteIconDrawable)
+ }
+
+ // Set the title.
+ dialogBuilder.setTitle(R.string.pinned_mismatch)
+
+ // Set the layout. The parent view is `null` because it will be assigned by the alert dialog.
+ dialogBuilder.setView(requireActivity().layoutInflater.inflate(R.layout.pinned_mismatch_linearlayout, null))
+
+ // Set the update button listener.
+ dialogBuilder.setNeutralButton(R.string.update) { _: DialogInterface?, _: Int ->
+ // Get the current SSL certificate.
+ val currentSslCertificate = nestedScrollWebView.certificate!!
+
+ // Get the dates from the certificate.
+ val currentSslStartDate = currentSslCertificate.validNotBeforeDate
+ val currentSslEndDate = currentSslCertificate.validNotAfterDate
+
+ // Convert the dates into longs. If the date is null, a long value of `0` will be stored in the domains database entry.
+ val currentSslStartDateLong: Long = currentSslStartDate?.time ?: 0
+ val currentSslEndDateLong: Long = currentSslEndDate?.time ?: 0
+
+ // Initialize the database handler. The `0` specifies the database version, but that is ignored and set instead using a constant in the domains database helper.
+ val domainsDatabaseHelper = DomainsDatabaseHelper(context, null, null, 0)
+
+ // Update the SSL certificate if it is pinned.
+ if (nestedScrollWebView.hasPinnedSslCertificate()) {
+ // Update the pinned SSL certificate in the domain database.
+ domainsDatabaseHelper.updatePinnedSslCertificate(nestedScrollWebView.domainSettingsDatabaseId, currentSslCertificate.issuedTo.cName, currentSslCertificate.issuedTo.oName,
+ currentSslCertificate.issuedTo.uName, currentSslCertificate.issuedBy.cName, currentSslCertificate.issuedBy.oName, currentSslCertificate.issuedBy.uName, currentSslStartDateLong,
+ currentSslEndDateLong)
+
+ // Update the pinned SSL certificate in the nested scroll WebView.
+ nestedScrollWebView.setPinnedSslCertificate(currentSslCertificate.issuedTo.cName, currentSslCertificate.issuedTo.oName, currentSslCertificate.issuedTo.uName,
+ currentSslCertificate.issuedBy.cName, currentSslCertificate.issuedBy.oName, currentSslCertificate.issuedBy.uName, currentSslStartDate, currentSslEndDate)
+ }
+
+ // Update the IP addresses if they are pinned.
+ if (nestedScrollWebView.hasPinnedIpAddresses()) {
+ // Update the pinned IP addresses in the domain database.
+ domainsDatabaseHelper.updatePinnedIpAddresses(nestedScrollWebView.domainSettingsDatabaseId, nestedScrollWebView. currentIpAddresses)
+
+ // Update the pinned IP addresses in the nested scroll WebView.
+ nestedScrollWebView.pinnedIpAddresses = nestedScrollWebView.currentIpAddresses
+ }
+ }
+
+ // Set the back button listener.
+ dialogBuilder.setNegativeButton(R.string.back) { _: DialogInterface?, _: Int ->
+ if (nestedScrollWebView.canGoBack()) { // There is a back page in the history.
+ // Invoke the navigate history listener in the calling activity. These commands cannot be run here because they need access to `applyDomainSettings()`.
+ pinnedMismatchListener.pinnedErrorGoBack()
+ } else { // There are no pages to go back to.
+ // Load a blank page
+ nestedScrollWebView.loadUrl("")
+ }
+ }
+
+ // Set the proceed button listener.
+ dialogBuilder.setPositiveButton(R.string.proceed) { _: DialogInterface?, _: Int ->
+ // Do not check the pinned information for this domain again until the domain changes.
+ nestedScrollWebView.setIgnorePinnedDomainInformation(true)
+ }
+
+ // Create an alert dialog from the alert dialog builder.
+ val alertDialog = dialogBuilder.create()
+
+ // Get a handle for the shared preferences.
+ val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
+
+ // Get the screenshot preference.
+ val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ // Disable screenshots.
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // The alert dialog must be shown before items in the layout can be modified.
+ alertDialog.show()
+
+ // Get handles for the views.
+ val viewPager = alertDialog.findViewById<ViewPager>(R.id.pinned_ssl_certificate_mismatch_viewpager)!!
+ val tabLayout = alertDialog.findViewById<TabLayout>(R.id.pinned_ssl_certificate_mismatch_tablayout)!!
+
+ // Initialize the pinned mismatch pager adapter.
+ val pinnedMismatchPagerAdapter = PinnedMismatchPagerAdapter(requireContext(), layoutInflater, webViewFragmentId)
+
+ // Set the view pager adapter.
+ viewPager.adapter = pinnedMismatchPagerAdapter
+
+ // Connect the tab layout to the view pager.
+ tabLayout.setupWithViewPager(viewPager)
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+}
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