--- /dev/null
+/*
+ * Copyright © 2016-2021 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.res.Configuration
+import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.Drawable
+import android.net.Uri
+import android.os.Bundle
+import android.text.SpannableStringBuilder
+import android.text.Spanned
+import android.text.style.ForegroundColorSpan
+import android.view.WindowManager
+import android.widget.TextView
+
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.DialogFragment
+import androidx.preference.PreferenceManager
+
+import com.stoutner.privacybrowser.R
+import com.stoutner.privacybrowser.activities.MainWebViewActivity
+import com.stoutner.privacybrowser.views.NestedScrollWebView
+
+import java.text.DateFormat
+import java.util.Calendar
+
+// Define the class constants.
+private const val WEBVIEW_FRAGMENT_ID = "webview_fragment_id"
+
+class ViewSslCertificateDialog : DialogFragment() {
+ companion object {
+ // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin.
+ @JvmStatic
+ fun displayDialog(webViewFragmentId: Long): ViewSslCertificateDialog {
+ // 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 view SSL certificate dialog.
+ val viewSslCertificateDialog = ViewSslCertificateDialog()
+
+ // Add the bundle to the new dialog.
+ viewSslCertificateDialog.arguments = argumentsBundle
+
+ // Return the new dialog.
+ return viewSslCertificateDialog
+ }
+ }
+
+ // `@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 current position of this WebView fragment.
+ val webViewPosition = MainWebViewActivity.webViewPagerAdapter.getPositionForId(requireArguments().getLong(WEBVIEW_FRAGMENT_ID))
+
+ // 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 nested scroll WebView.
+ val nestedScrollWebView: NestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview)
+
+ // Use a builder to create the alert dialog.
+ val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
+
+ // Create a drawable version of the favorite icon.
+ val favoriteIconDrawable: Drawable = BitmapDrawable(resources, nestedScrollWebView.favoriteOrDefaultIcon)
+
+ // Set the icon.
+ dialogBuilder.setIcon(favoriteIconDrawable)
+
+ // Set the close button listener. Using `null` as the listener closes the dialog without doing anything else.
+ dialogBuilder.setNegativeButton(R.string.close, null)
+
+ // Get the SSL certificate.
+ val sslCertificate = nestedScrollWebView.certificate
+
+ // 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)
+
+ // Check to see if the website is encrypted.
+ if (sslCertificate == null) { // The website is not encrypted.
+ // Set the title.
+ dialogBuilder.setTitle(R.string.unencrypted_website)
+
+ // Set the Layout. The parent view is `null` because it will be assigned by the alert dialog.
+ dialogBuilder.setView(layoutInflater.inflate(R.layout.unencrypted_website_dialog, null))
+
+ // Create an alert dialog from the builder.
+ val alertDialog = dialogBuilder.create()
+
+ // Disable screenshots if not allowed.
+ if (!allowScreenshots) {
+ // Disable screenshots.
+ alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
+ }
+
+ // Return the alert dialog.
+ return alertDialog
+ } else { // The website is encrypted.
+ // Set the title.
+ dialogBuilder.setTitle(R.string.ssl_certificate)
+
+ // Set the layout. The parent view is `null` because it will be assigned by the alert dialog.
+ dialogBuilder.setView(layoutInflater.inflate(R.layout.view_ssl_certificate_dialog, null))
+
+ // Create an alert dialog from the builder.
+ val alertDialog = dialogBuilder.create()
+
+ // 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 text views.
+ val domainTextView = alertDialog.findViewById<TextView>(R.id.domain)!!
+ val ipAddressesTextView = alertDialog.findViewById<TextView>(R.id.ip_addresses)!!
+ val issuedToCNameTextView = alertDialog.findViewById<TextView>(R.id.issued_to_cname)!!
+ val issuedToONameTextView = alertDialog.findViewById<TextView>(R.id.issued_to_oname)!!
+ val issuedToUNameTextView = alertDialog.findViewById<TextView>(R.id.issued_to_uname)!!
+ val issuedByCNameTextView = alertDialog.findViewById<TextView>(R.id.issued_by_cname)!!
+ val issuedByONameTextView = alertDialog.findViewById<TextView>(R.id.issued_by_oname)!!
+ val issuedByUNameTextView = alertDialog.findViewById<TextView>(R.id.issued_by_uname)!!
+ val startDateTextView = alertDialog.findViewById<TextView>(R.id.start_date)!!
+ val endDateTextView = alertDialog.findViewById<TextView>(R.id.end_date)!!
+
+ // Setup the labels.
+ val domainLabel = getString(R.string.domain_label) + " "
+ val ipAddressesLabel = getString(R.string.ip_addresses) + " "
+ val cNameLabel = getString(R.string.common_name) + " "
+ val oNameLabel = getString(R.string.organization) + " "
+ val uNameLabel = getString(R.string.organizational_unit) + " "
+ val startDateLabel = getString(R.string.start_date) + " "
+ val endDateLabel = getString(R.string.end_date) + " "
+
+ // Convert the URL to a URI.
+ val uri = Uri.parse(nestedScrollWebView.url)
+
+ // Extract the domain name from the URI.
+ val domainString = uri.host
+
+ // Get the strings from the SSL certificate.
+ val issuedToCName = sslCertificate.issuedTo.cName
+ val issuedToOName = sslCertificate.issuedTo.oName
+ val issuedToUName = sslCertificate.issuedTo.uName
+ val issuedByCName = sslCertificate.issuedBy.cName
+ val issuedByOName = sslCertificate.issuedBy.oName
+ val issuedByUName = sslCertificate.issuedBy.uName
+ val startDate = sslCertificate.validNotBeforeDate
+ val endDate = sslCertificate.validNotAfterDate
+
+ // Create spannable string builders for each text view that needs multiple colors of text.
+ val domainStringBuilder = SpannableStringBuilder(domainLabel + domainString)
+ val ipAddressesStringBuilder = SpannableStringBuilder(ipAddressesLabel + nestedScrollWebView.currentIpAddresses)
+ val issuedToCNameStringBuilder = SpannableStringBuilder(cNameLabel + issuedToCName)
+ val issuedToONameStringBuilder = SpannableStringBuilder(oNameLabel + issuedToOName)
+ val issuedToUNameStringBuilder = SpannableStringBuilder(uNameLabel + issuedToUName)
+ val issuedByCNameStringBuilder = SpannableStringBuilder(cNameLabel + issuedByCName)
+ val issuedByONameStringBuilder = SpannableStringBuilder(oNameLabel + issuedByOName)
+ val issuedByUNameStringBuilder = SpannableStringBuilder(uNameLabel + issuedByUName)
+ val startDateStringBuilder = SpannableStringBuilder(startDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(startDate))
+ val endDateStringBuilder = SpannableStringBuilder(endDateLabel + DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.LONG).format(endDate))
+
+ // Define the color spans.
+ val blueColorSpan: ForegroundColorSpan
+ val redColorSpan: ForegroundColorSpan
+
+ // Get the current theme status.
+ val currentThemeStatus = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+
+ // Set the color spans according to the theme. The deprecated `getColor()` must be used until the minimum API >= 23.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
+ @Suppress("DEPRECATION")
+ blueColorSpan = ForegroundColorSpan(resources.getColor(R.color.blue_700))
+ @Suppress("DEPRECATION")
+ redColorSpan = ForegroundColorSpan(resources.getColor(R.color.red_a700))
+ } else {
+ @Suppress("DEPRECATION")
+ blueColorSpan = ForegroundColorSpan(resources.getColor(R.color.violet_700))
+ @Suppress("DEPRECATION")
+ redColorSpan = ForegroundColorSpan(resources.getColor(R.color.red_900))
+ }
+
+ // Format the domain string and issued to CName colors.
+ if (domainString == issuedToCName) { // The domain and issued to CName match.
+ // Set the strings to be blue.
+ domainStringBuilder.setSpan(blueColorSpan, domainLabel.length, domainStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length, issuedToCNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ } else if (issuedToCName.startsWith("*.")) { // The issued to CName begins with a wildcard.
+ // Remove the initial `*.`.
+ val baseCertificateDomain = issuedToCName.substring(2)
+
+ // Setup a copy of the domain string to test subdomains.
+ var domainStringSubdomain = domainString!!
+
+ // Define a domain names match variable.
+ var domainNamesMatch = false
+
+ // Check all the subdomains against the base certificate domain.
+ while (!domainNamesMatch && domainStringSubdomain.contains(".")) { // Stop checking if we know that the domain names match or if we run out of subdomains.
+ // Test the subdomain against the base certificate domain.
+ if (domainStringSubdomain == baseCertificateDomain) {
+ domainNamesMatch = true
+ }
+
+ // Strip out the lowest subdomain.
+ domainStringSubdomain = domainStringSubdomain.substring(domainStringSubdomain.indexOf(".") + 1)
+ }
+
+ // Format the domain and issued to CName.
+ if (domainNamesMatch) { // The domain is a subdomain of the wildcard certificate.
+ // Set the strings to be blue.
+ domainStringBuilder.setSpan(blueColorSpan, domainLabel.length, domainStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length, issuedToCNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ } else { // The domain is not a subdomain of the wildcard certificate.
+ // Set the string to be red.
+ domainStringBuilder.setSpan(redColorSpan, domainLabel.length, domainStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToCNameStringBuilder.setSpan(redColorSpan, cNameLabel.length, issuedToCNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ }
+ } else { // The strings do not match and issued to CName does not begin with a wildcard.
+ // Set the strings to be red.
+ domainStringBuilder.setSpan(redColorSpan, domainLabel.length, domainStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToCNameStringBuilder.setSpan(redColorSpan, cNameLabel.length, issuedToCNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ }
+
+ // Set the IP addresses, issued to, and issued by spans to display the certificate information in blue. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
+ ipAddressesStringBuilder.setSpan(blueColorSpan, ipAddressesLabel.length, ipAddressesStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length, issuedToONameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedToUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length, issuedToUNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedByCNameStringBuilder.setSpan(blueColorSpan, cNameLabel.length, issuedByCNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedByONameStringBuilder.setSpan(blueColorSpan, oNameLabel.length, issuedByONameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ issuedByUNameStringBuilder.setSpan(blueColorSpan, uNameLabel.length, issuedByUNameStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+
+ // Get the current date.
+ val currentDate = Calendar.getInstance().time
+
+ // Format the start date color. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
+ if (startDate.after(currentDate)) { // The certificate start date is in the future.
+ startDateStringBuilder.setSpan(redColorSpan, startDateLabel.length, startDateStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ } else { // The certificate start date is in the past.
+ startDateStringBuilder.setSpan(blueColorSpan, startDateLabel.length, startDateStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ }
+
+ // Format the end date color. `SPAN_INCLUSIVE_INCLUSIVE` allows the span to grow in either direction.
+ if (endDate.before(currentDate)) { // The certificate end date is in the past.
+ endDateStringBuilder.setSpan(redColorSpan, endDateLabel.length, endDateStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ } else { // The certificate end date is in the future.
+ endDateStringBuilder.setSpan(blueColorSpan, endDateLabel.length, endDateStringBuilder.length, Spanned.SPAN_INCLUSIVE_INCLUSIVE)
+ }
+
+ // Display the strings.
+ domainTextView.text = domainStringBuilder
+ ipAddressesTextView.text = ipAddressesStringBuilder
+ issuedToCNameTextView.text = issuedToCNameStringBuilder
+ issuedToONameTextView.text = issuedToONameStringBuilder
+ issuedToUNameTextView.text = issuedToUNameStringBuilder
+ issuedByCNameTextView.text = issuedByCNameStringBuilder
+ issuedByONameTextView.text = issuedByONameStringBuilder
+ issuedByUNameTextView.text = issuedByUNameStringBuilder
+ startDateTextView.text = startDateStringBuilder
+ endDateTextView.text = endDateStringBuilder
+
+ // Return the alert dialog.
+ return alertDialog
+ }
+ }
+}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff