From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Tad <tad@spotco.us>
Date: Thu, 21 Oct 2021 21:09:38 -0400
Subject: [PATCH] Add more 'Private DNS' options

This adds thirteen DNS providers as available presets.

Credit: CalyxOS
- Chirayu Desai <chirayudesai1@gmail.com>
  https://review.calyxos.org/c/CalyxOS/platform_packages_apps_Settings/+/458
- Pavel Shirshov <pshirshov@eml.cc>
  https://review.calyxos.org/c/CalyxOS/platform_packages_apps_Settings/+/5357

Signed-off-by: Tad <tad@spotco.us>
Change-Id: I423ad5a3c360a687a226e61df3f75b5550f851c0
---
 res/layout/private_dns_mode_dialog.xml        | 52 +++++++++++
 res/values/cm_strings.xml                     | 15 +++
 .../PrivateDnsModeDialogPreference.java       | 92 +++++++++++++++++++
 .../PrivateDnsPreferenceController.java       | 65 +++++++++++++
 4 files changed, 224 insertions(+)

diff --git a/res/layout/private_dns_mode_dialog.xml b/res/layout/private_dns_mode_dialog.xml
index 0b4f4db6c4..ca6a2cf62d 100644
--- a/res/layout/private_dns_mode_dialog.xml
+++ b/res/layout/private_dns_mode_dialog.xml
@@ -35,6 +35,58 @@
                 android:id="@+id/private_dns_mode_off"
                 layout="@layout/preference_widget_dialog_radiobutton"/>
 
+            <include
+                android:id="@+id/private_dns_mode_adguard"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_appliedprivacy"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_cira"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_cleanbrowsing"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_cloudflare"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_cznic"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_google"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_mullvad"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_quadnine"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_restena"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_switch"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_twnic"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
+            <include
+                android:id="@+id/private_dns_mode_uncensoreddns"
+                layout="@layout/preference_widget_dialog_radiobutton"/>
+
             <include
                 android:id="@+id/private_dns_mode_opportunistic"
                 layout="@layout/preference_widget_dialog_radiobutton"/>
diff --git a/res/values/cm_strings.xml b/res/values/cm_strings.xml
index 6c81254ce2..86fd2bd6c6 100644
--- a/res/values/cm_strings.xml
+++ b/res/values/cm_strings.xml
@@ -137,6 +137,21 @@
     <string name="unlock_scramble_pin_layout_title">Scramble layout</string>
     <string name="unlock_scramble_pin_layout_summary">Scramble PIN layout when unlocking device</string>
 
+    <!-- Private DNS -->
+    <string name="private_dns_mode_adguard" translatable="false">AdGuard (CY)</string>
+    <string name="private_dns_mode_appliedprivacy" translatable="false">AppliedPrivacy (AT)</string>
+    <string name="private_dns_mode_cira" translatable="false">CIRA (CA)</string>
+    <string name="private_dns_mode_cleanbrowsing" translatable="false">CleanBrowsing (US)</string>
+    <string name="private_dns_mode_cloudflare" translatable="false">Cloudflare (US)</string>
+    <string name="private_dns_mode_cznic" translatable="false">CZ.NIC (CZ)</string>
+    <string name="private_dns_mode_google" translatable="false">Google (US)</string>
+    <string name="private_dns_mode_mullvad" translatable="false">Mullvad (SE)</string>
+    <string name="private_dns_mode_quadnine" translatable="false">Quad9 (CH)</string>
+    <string name="private_dns_mode_restena" translatable="false">Restena (LU)</string>
+    <string name="private_dns_mode_switch" translatable="false">SWITCH (CH)</string>
+    <string name="private_dns_mode_twnic" translatable="false">TW.NIC (TW)</string>
+    <string name="private_dns_mode_uncensoreddns" translatable="false">UncensoredDNS (DK)</string>
+
     <!-- Proximity wake -->
     <string name="proximity_wake_title">Prevent accidental wake-up</string>
     <string name="proximity_wake_summary">Check the proximity sensor prior to waking up screen</string>
diff --git a/src/com/android/settings/network/PrivateDnsModeDialogPreference.java b/src/com/android/settings/network/PrivateDnsModeDialogPreference.java
index 3fc5086cd6..abfb5b4470 100644
--- a/src/com/android/settings/network/PrivateDnsModeDialogPreference.java
+++ b/src/com/android/settings/network/PrivateDnsModeDialogPreference.java
@@ -17,6 +17,19 @@ package com.android.settings.network;
 
 import static android.net.ConnectivityManager.PRIVATE_DNS_DEFAULT_MODE_FALLBACK;
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_OFF;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_ADGUARD;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_APPLIEDPRIVACY;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CIRA;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CLEANBROWSING;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CLOUDFLARE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CZNIC;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_GOOGLE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_MULLVAD;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_QUADNINE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_RESTENA;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_SWITCH;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_TWNIC;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_UNCENSOREDDNS;
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_OPPORTUNISTIC;
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_PROVIDER_HOSTNAME;
 
@@ -74,6 +87,19 @@ public class PrivateDnsModeDialogPreference extends CustomDialogPreferenceCompat
     static {
         PRIVATE_DNS_MAP = new HashMap<>();
         PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_OFF, R.id.private_dns_mode_off);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_ADGUARD, R.id.private_dns_mode_adguard);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_APPLIEDPRIVACY, R.id.private_dns_mode_appliedprivacy);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_CIRA, R.id.private_dns_mode_cira);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_CLEANBROWSING, R.id.private_dns_mode_cleanbrowsing);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_CLOUDFLARE, R.id.private_dns_mode_cloudflare);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_CZNIC, R.id.private_dns_mode_cznic);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_GOOGLE, R.id.private_dns_mode_google);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_MULLVAD, R.id.private_dns_mode_mullvad);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_QUADNINE, R.id.private_dns_mode_quadnine);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_RESTENA, R.id.private_dns_mode_restena);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_SWITCH, R.id.private_dns_mode_switch);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_TWNIC, R.id.private_dns_mode_twnic);
+        PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_UNCENSOREDDNS, R.id.private_dns_mode_uncensoreddns);
         PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_OPPORTUNISTIC, R.id.private_dns_mode_opportunistic);
         PRIVATE_DNS_MAP.put(PRIVATE_DNS_MODE_PROVIDER_HOSTNAME, R.id.private_dns_mode_provider);
     }
@@ -180,6 +206,46 @@ public class PrivateDnsModeDialogPreference extends CustomDialogPreferenceCompat
         // Initial radio button text
         final RadioButton offRadioButton = view.findViewById(R.id.private_dns_mode_off);
         offRadioButton.setText(R.string.private_dns_mode_off);
+        final RadioButton adguardRadioButton =
+                view.findViewById(R.id.private_dns_mode_adguard);
+        adguardRadioButton.setText(R.string.private_dns_mode_adguard);
+        final RadioButton appliedprivacyRadioButton =
+                view.findViewById(R.id.private_dns_mode_appliedprivacy);
+        appliedprivacyRadioButton.setText(R.string.private_dns_mode_appliedprivacy);
+        final RadioButton ciraRadioButton =
+                view.findViewById(R.id.private_dns_mode_cira);
+        ciraRadioButton.setText(R.string.private_dns_mode_cira);
+        final RadioButton cleanbrowsingRadioButton =
+                view.findViewById(R.id.private_dns_mode_cleanbrowsing);
+        cleanbrowsingRadioButton.setText(R.string.private_dns_mode_cleanbrowsing);
+        final RadioButton cloudflareRadioButton =
+                view.findViewById(R.id.private_dns_mode_cloudflare);
+        cloudflareRadioButton.setText(R.string.private_dns_mode_cloudflare);
+        final RadioButton cznicRadioButton =
+                view.findViewById(R.id.private_dns_mode_cznic);
+        cznicRadioButton.setText(R.string.private_dns_mode_cznic);
+        final RadioButton googleRadioButton =
+                view.findViewById(R.id.private_dns_mode_google);
+        googleRadioButton.setText(R.string.private_dns_mode_google);
+        final RadioButton mullvadRadioButton =
+                view.findViewById(R.id.private_dns_mode_mullvad);
+        mullvadRadioButton.setText(R.string.private_dns_mode_mullvad);
+        final RadioButton quadnineRadioButton =
+                view.findViewById(R.id.private_dns_mode_quadnine);
+        quadnineRadioButton.setText(R.string.private_dns_mode_quadnine);
+        final RadioButton restenaRadioButton =
+                view.findViewById(R.id.private_dns_mode_restena);
+        restenaRadioButton.setText(R.string.private_dns_mode_restena);
+        final RadioButton switchRadioButton =
+                view.findViewById(R.id.private_dns_mode_switch);
+        switchRadioButton.setText(R.string.private_dns_mode_switch);
+        final RadioButton twnicRadioButton =
+                view.findViewById(R.id.private_dns_mode_twnic);
+        twnicRadioButton.setText(R.string.private_dns_mode_twnic);
+        final RadioButton uncensoreddnsRadioButton =
+                view.findViewById(R.id.private_dns_mode_uncensoreddns);
+        uncensoreddnsRadioButton.setText(R.string.private_dns_mode_uncensoreddns);
+
         final RadioButton opportunisticRadioButton =
                 view.findViewById(R.id.private_dns_mode_opportunistic);
         opportunisticRadioButton.setText(R.string.private_dns_mode_opportunistic);
@@ -221,6 +287,32 @@ public class PrivateDnsModeDialogPreference extends CustomDialogPreferenceCompat
     public void onCheckedChanged(RadioGroup group, int checkedId) {
         if (checkedId == R.id.private_dns_mode_off) {
             mMode = PRIVATE_DNS_MODE_OFF;
+        } else if (checkedId == R.id.private_dns_mode_adguard) {
+            mMode = PRIVATE_DNS_MODE_ADGUARD;
+        } else if (checkedId == R.id.private_dns_mode_appliedprivacy) {
+            mMode = PRIVATE_DNS_MODE_APPLIEDPRIVACY;
+        } else if (checkedId == R.id.private_dns_mode_cira) {
+            mMode = PRIVATE_DNS_MODE_CIRA;
+        } else if (checkedId == R.id.private_dns_mode_cleanbrowsing) {
+            mMode = PRIVATE_DNS_MODE_CLEANBROWSING;
+        } else if (checkedId == R.id.private_dns_mode_cloudflare) {
+            mMode = PRIVATE_DNS_MODE_CLOUDFLARE;
+        } else if (checkedId == R.id.private_dns_mode_cznic) {
+            mMode = PRIVATE_DNS_MODE_CZNIC;
+        } else if (checkedId == R.id.private_dns_mode_google) {
+            mMode = PRIVATE_DNS_MODE_GOOGLE;
+        } else if (checkedId == R.id.private_dns_mode_mullvad) {
+            mMode = PRIVATE_DNS_MODE_MULLVAD;
+        } else if (checkedId == R.id.private_dns_mode_quadnine) {
+            mMode = PRIVATE_DNS_MODE_QUADNINE;
+        } else if (checkedId == R.id.private_dns_mode_restena) {
+            mMode = PRIVATE_DNS_MODE_RESTENA;
+        } else if (checkedId == R.id.private_dns_mode_switch) {
+            mMode = PRIVATE_DNS_MODE_SWITCH;
+        } else if (checkedId == R.id.private_dns_mode_twnic) {
+            mMode = PRIVATE_DNS_MODE_TWNIC;
+        } else if (checkedId == R.id.private_dns_mode_uncensoreddns) {
+            mMode = PRIVATE_DNS_MODE_UNCENSOREDDNS;
         } else if (checkedId == R.id.private_dns_mode_opportunistic) {
             mMode = PRIVATE_DNS_MODE_OPPORTUNISTIC;
         } else if (checkedId == R.id.private_dns_mode_provider) {
diff --git a/src/com/android/settings/network/PrivateDnsPreferenceController.java b/src/com/android/settings/network/PrivateDnsPreferenceController.java
index 22633e0081..4a55ac5c2b 100644
--- a/src/com/android/settings/network/PrivateDnsPreferenceController.java
+++ b/src/com/android/settings/network/PrivateDnsPreferenceController.java
@@ -17,6 +17,19 @@
 package com.android.settings.network;
 
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_OFF;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_ADGUARD;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_APPLIEDPRIVACY;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CIRA;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CLEANBROWSING;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CLOUDFLARE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_CZNIC;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_GOOGLE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_MULLVAD;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_QUADNINE;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_RESTENA;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_SWITCH;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_TWNIC;
+import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_UNCENSOREDDNS;
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_OPPORTUNISTIC;
 import static android.net.ConnectivityManager.PRIVATE_DNS_MODE_PROVIDER_HOSTNAME;
 import static android.provider.Settings.Global.PRIVATE_DNS_DEFAULT_MODE;
@@ -128,6 +141,58 @@ public class PrivateDnsPreferenceController extends BasePreferenceController
         switch (mode) {
             case PRIVATE_DNS_MODE_OFF:
                 return res.getString(R.string.private_dns_mode_off);
+            case PRIVATE_DNS_MODE_ADGUARD:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_adguard)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_APPLIEDPRIVACY:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_appliedprivacy)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_CIRA:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_cira)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_CLEANBROWSING:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_cleanbrowsing)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_CLOUDFLARE:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_cloudflare)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_CZNIC:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_cznic)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_GOOGLE:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_google)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_MULLVAD:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_mullvad)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_QUADNINE:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_quadnine)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_RESTENA:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_restena)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_SWITCH:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_switch)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_TWNIC:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_twnic)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
+            case PRIVATE_DNS_MODE_UNCENSOREDDNS:
+                return dnsesResolved
+                        ? res.getString(R.string.private_dns_mode_uncensoreddns)
+                        : res.getString(R.string.private_dns_mode_provider_failure);
             case PRIVATE_DNS_MODE_OPPORTUNISTIC:
                 return dnsesResolved ? res.getString(R.string.private_dns_mode_on)
                         : res.getString(R.string.private_dns_mode_opportunistic);
