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LeOS-GSI/patches/leos/platform_packages_apps_Sett.../0000-hosts-toggle.patch

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From a7182faac1a06d7b337169448f364e43c1955778 Mon Sep 17 00:00:00 2001
From: harvey186 <harvey186@hotmail.com>
Date: Fri, 12 Jan 2024 15:24:41 +0100
Subject: [PATCH] hosts-toggle
Change-Id: I10ff19e69b03662a8c7f0d75e3769aabfcf2d585
---
0000-hosts_toggle.patch | 15 +--
res/values/strings.xml | 3 +
res/xml/security_dashboard_settings.xml | 8 +-
.../security/HostsPreferenceController.java | 106 ++++++++++++++++++
.../settings/security/SecuritySettings.java | 1 +
5 files changed, 118 insertions(+), 15 deletions(-)
create mode 100644 src/com/android/settings/security/HostsPreferenceController.java
diff --git a/res/values/strings.xml b/res/values/strings.xml
index e7695a8b64..1951c0a06b 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -705,6 +705,9 @@
<string name="security_enable_widgets_title">Enable widgets</string>
<!-- Summary for settings checkbox to disable widgets when the setting has been disabled by an installed device admin [CHAR LIMIT=50] -->
<string name="security_enable_widgets_disabled_summary">Disabled by admin</string>
+
+ <string name="hosts_disable_title">Disable DNS content blocker</string>
+ <string name="hosts_disable_summary">Disables use of the included /etc/hosts database for data collection and malware blocking.</string>
<!-- Text shown for the title of the lock when trust lost option [CHAR LIMIT=40] -->
<string name="trust_lost_locks_screen_title">Lock screen when trust is lost</string>
diff --git a/res/xml/security_dashboard_settings.xml b/res/xml/security_dashboard_settings.xml
index 0550441d3f..475c398ac0 100644
--- a/res/xml/security_dashboard_settings.xml
+++ b/res/xml/security_dashboard_settings.xml
@@ -60,6 +60,12 @@
android:title="@string/security_settings_biometric_preference_title"
android:summary="@string/summary_placeholder"
settings:keywords="@string/keywords_biometric_settings" />
+
+ <SwitchPreference
+ android:key="hosts_disable"
+ android:title="@string/hosts_disable_title"
+ android:summary="@string/hosts_disable_summary"
+ android:persistent="false" />
</PreferenceCategory>
<Preference
@@ -71,4 +77,4 @@
settings:controller="com.android.settings.security.SecurityAdvancedSettingsController"
settings:keywords="@string/security_advanced_settings_keywords" />
-</PreferenceScreen>
\ No newline at end of file
+</PreferenceScreen>
diff --git a/src/com/android/settings/security/HostsPreferenceController.java b/src/com/android/settings/security/HostsPreferenceController.java
new file mode 100644
index 0000000000..d8af6d2649
--- /dev/null
+++ b/src/com/android/settings/security/HostsPreferenceController.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings.security;
+
+import android.content.Context;
+
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.os.SystemProperties;
+
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceGroup;
+import androidx.preference.PreferenceScreen;
+import androidx.preference.TwoStatePreference;
+import androidx.preference.SwitchPreference;
+
+import com.android.internal.widget.LockPatternUtils;
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+public class HostsPreferenceController extends AbstractPreferenceController
+ implements PreferenceControllerMixin, OnResume, Preference.OnPreferenceChangeListener {
+
+ private static final String SYS_KEY_HOSTS_DISABLE = "persist.security.hosts_disable";
+ private static final String PREF_KEY_HOSTS_DISABLE = "hosts_disable";
+ private static final String PREF_KEY_SECURITY_CATEGORY = "security_category";
+
+ private PreferenceCategory mSecurityCategory;
+ private SwitchPreference mHostsDisable;
+ private boolean mIsAdmin;
+ private UserManager mUm;
+
+ public HostsPreferenceController(Context context) {
+ super(context);
+ mUm = UserManager.get(context);
+ }
+
+ @Override
+ public void displayPreference(PreferenceScreen screen) {
+ super.displayPreference(screen);
+ mSecurityCategory = screen.findPreference(PREF_KEY_SECURITY_CATEGORY);
+ updatePreferenceState();
+ }
+
+ @Override
+ public boolean isAvailable() {
+ mIsAdmin = mUm.isAdminUser();
+ return mIsAdmin;
+ }
+
+ @Override
+ public String getPreferenceKey() {
+ return PREF_KEY_HOSTS_DISABLE;
+ }
+
+ // TODO: should we use onCreatePreferences() instead?
+ private void updatePreferenceState() {
+ if (mSecurityCategory == null) {
+ return;
+ }
+
+ if (mIsAdmin) {
+ mHostsDisable = (SwitchPreference) mSecurityCategory.findPreference(PREF_KEY_HOSTS_DISABLE);
+ mHostsDisable.setChecked(SystemProperties.getInt(SYS_KEY_HOSTS_DISABLE, 0) == 1);
+ } else {
+ mSecurityCategory.removePreference(mSecurityCategory.findPreference(PREF_KEY_HOSTS_DISABLE));
+ }
+ }
+
+ @Override
+ public void onResume() {
+ updatePreferenceState();
+ if (mHostsDisable != null) {
+ boolean mode = mHostsDisable.isChecked();
+ SystemProperties.set(SYS_KEY_HOSTS_DISABLE, mode ? "1" : "0");
+ }
+ }
+
+ @Override
+ public boolean onPreferenceChange(Preference preference, Object value) {
+ final String key = preference.getKey();
+ if (PREF_KEY_HOSTS_DISABLE.equals(key)) {
+ final boolean mode = !mHostsDisable.isChecked();
+ SystemProperties.set(SYS_KEY_HOSTS_DISABLE, mode ? "1" : "0");
+ }
+ return true;
+ }
+}
diff --git a/src/com/android/settings/security/SecuritySettings.java b/src/com/android/settings/security/SecuritySettings.java
index b30b54d4d4..62eeaefd57 100644
--- a/src/com/android/settings/security/SecuritySettings.java
+++ b/src/com/android/settings/security/SecuritySettings.java
@@ -105,6 +105,7 @@ public class SecuritySettings extends DashboardFragment {
securityPreferenceControllers.add(new CombinedBiometricStatusPreferenceController(
context, lifecycle));
securityPreferenceControllers.add(new ChangeScreenLockPreferenceController(context, host));
+ securityPreferenceControllers.add(new HostsPreferenceController(context));
controllers.add(new PreferenceCategoryController(context, SECURITY_CATEGORY)
.setChildren(securityPreferenceControllers));
controllers.addAll(securityPreferenceControllers);
--
2.34.1
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