]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/dialogs/PinnedMismatchDialog.kt
Convert a number of files to Kotlin. https://redmine.stoutner.com/issues/641
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / dialogs / PinnedMismatchDialog.kt
diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/PinnedMismatchDialog.kt b/app/src/main/java/com/stoutner/privacybrowser/dialogs/PinnedMismatchDialog.kt
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+/*
+ * 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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