2022-10-12 20:14:31 +00:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Pratyush <codelab@pratyush.dev>
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Date: Wed, 20 Oct 2021 05:40:11 +0530
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Subject: [PATCH] add toggle to set captiveportal settings
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Access is disallowed for users that are disallowed from configuring
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Private DNS settings. This restriction provides administrative control
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over this feature in a way that's compatible with existing device
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manager implementations. Private DNS is the closest fit from the
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existing user management restrictions that are available.
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Co-authored-by: stuux <stuux@posteo.net>
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Co-authored-by: Renlord <me@renlord.com>
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Co-authored-by: Danny Lin <danny@kdrag0n.dev>
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Co-authored-by: anupritaisno1 <www.anuprita804@gmail.com>
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Signed-off-by: empratyush <codelab@pratyush.dev>
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[tad@spotco.us]: removed the option for GrapheneOS servers
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Change-Id: I8602bc4be0b896416282b7cf08bcd45b2cc216c6
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---
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res/values/arrays.xml | 10 +
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res/values/strings.xml | 3 +
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...ConnectivityCheckPreferenceController.java | 176 ++++++++++++++++++
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.../network/NetworkDashboardFragment.java | 3 +
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4 files changed, 192 insertions(+)
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create mode 100644 src/com/android/settings/network/ConnectivityCheckPreferenceController.java
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diff --git a/res/values/arrays.xml b/res/values/arrays.xml
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index f50d130936..bb95662047 100644
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--- a/res/values/arrays.xml
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+++ b/res/values/arrays.xml
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@@ -229,6 +229,16 @@
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<item>259200000</item>
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</string-array>
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+ <string-array name="connectivity_check_entries">
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+ <item>Standard (Google)</item>
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+ <item>Disabled</item>
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+ </string-array>
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+
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+ <string-array name="connectivity_check_values" translatable="false">
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+ <item>0</item>
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+ <item>1</item>
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+ </string-array>
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+
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<!-- Security settings. The delay after screen is turned off until device locks.
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These are shown in a list dialog. -->
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<string-array name="lock_after_timeout_entries">
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diff --git a/res/values/strings.xml b/res/values/strings.xml
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index 67c47bc7b3..58b17eeccf 100644
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--- a/res/values/strings.xml
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+++ b/res/values/strings.xml
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@@ -691,6 +691,9 @@
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<string name="auto_reboot_title">Auto reboot</string>
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<string name="auto_reboot_summary">Automatically reboot the device, if the phone hasn\'t been unlocked within the selected number of hours.</string>
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+ <string name="connectivity_check_title">Internet connectivity check</string>
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+ <string name="connectivity_check_summary">HTTP endpoints to use for performing internet connectivity checks.</string>
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+
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<!-- Text shown for summary of owner info setting (if none set) [CHAR LIMIT=40]-->
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<string name="owner_info_settings_summary">None</string>
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<!-- Description of how many characters are used in owner info [CHAR LIMIT=40]-->
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diff --git a/src/com/android/settings/network/ConnectivityCheckPreferenceController.java b/src/com/android/settings/network/ConnectivityCheckPreferenceController.java
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new file mode 100644
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index 0000000000..ae62133141
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--- /dev/null
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+++ b/src/com/android/settings/network/ConnectivityCheckPreferenceController.java
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@@ -0,0 +1,176 @@
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+/*
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+ * Copyright (C) 2020 The Android Open Source Project
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+package com.android.settings.network;
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+
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+import android.content.ContentResolver;
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+import android.content.Context;
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+import android.content.res.Resources;
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+import android.database.ContentObserver;
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+import android.net.LinkProperties;
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+import android.net.Network;
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+import android.os.Handler;
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+import android.os.Looper;
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+import android.os.UserHandle;
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+import android.os.UserManager;
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+import android.provider.Settings;
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+import androidx.preference.ListPreference;
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+import androidx.preference.Preference;
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+import androidx.preference.PreferenceScreen;
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+import com.android.internal.util.ArrayUtils;
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+import com.android.settings.R;
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+import com.android.settings.core.BasePreferenceController;
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+import com.android.settings.core.PreferenceControllerMixin;
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+import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
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+import com.android.settingslib.RestrictedLockUtilsInternal;
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+import com.android.settingslib.core.lifecycle.events.OnResume;
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+
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+public class ConnectivityCheckPreferenceController
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+ extends BasePreferenceController
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+ implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
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+ OnResume {
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+
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+ // imported defaults from AOSP NetworkStack
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+ private static final String STANDARD_HTTPS_URL =
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+ "https://www.google.com/generate_204";
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+ private static final String STANDARD_HTTP_URL =
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+ "http://connectivitycheck.gstatic.com/generate_204";
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+ private static final String STANDARD_FALLBACK_URL =
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+ "http://www.google.com/gen_204";
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+ private static final String STANDARD_OTHER_FALLBACK_URLS =
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+ "http://play.googleapis.com/generate_204";
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+
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+ private static final int STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL = 0;
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+ private static final int DISABLED_CAPTIVE_PORTAL_INTVAL = 1;
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+
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+ private static final String KEY_CONNECTIVITY_CHECK_SETTINGS =
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+ "connectivity_check_settings";
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+
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+ private ListPreference mConnectivityPreference;
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+
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+ public ConnectivityCheckPreferenceController(Context context) {
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+ super(context, KEY_CONNECTIVITY_CHECK_SETTINGS);
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+ }
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+
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+ @Override
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+ public int getAvailabilityStatus() {
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+ if (isDisabledByAdmin()) {
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+ return BasePreferenceController.DISABLED_FOR_USER;
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+ }
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+ return BasePreferenceController.AVAILABLE;
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+ }
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+
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+ @Override
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+ public void displayPreference(PreferenceScreen screen) {
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+ ListPreference captiveList = new ListPreference(screen.getContext());
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+ captiveList.setKey(KEY_CONNECTIVITY_CHECK_SETTINGS);
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+ captiveList.setOrder(30);
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+ captiveList.setIcon(R.drawable.ic_settings_language);
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+ captiveList.setTitle(R.string.connectivity_check_title);
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+ captiveList.setSummary(R.string.connectivity_check_summary);
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+ captiveList.setEntries(R.array.connectivity_check_entries);
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+ captiveList.setEntryValues(R.array.connectivity_check_values);
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+
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+ if (mConnectivityPreference == null) {
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+ screen.addPreference(captiveList);
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+ mConnectivityPreference = captiveList;
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+ }
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+ super.displayPreference(screen);
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+ updatePreferenceState();
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+ }
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+
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+ @Override
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+ public String getPreferenceKey() {
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+ return KEY_CONNECTIVITY_CHECK_SETTINGS;
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+ }
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+
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+ private void updatePreferenceState() {
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+ if (Settings.Global.getInt(mContext.getContentResolver(),
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+ Settings.Global.CAPTIVE_PORTAL_MODE, Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT)
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+ == Settings.Global.CAPTIVE_PORTAL_MODE_IGNORE) {
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+ mConnectivityPreference.setValueIndex(DISABLED_CAPTIVE_PORTAL_INTVAL);
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+ return;
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+ }
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+
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+ String pref = Settings.Global.getString(
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+ mContext.getContentResolver(), Settings.Global.CAPTIVE_PORTAL_HTTP_URL);
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+ if (STANDARD_HTTP_URL.equals(pref)) {
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+ mConnectivityPreference.setValueIndex(
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+ STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL);
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+ }
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+ }
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+
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+ @Override
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+ public void onResume() {
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+ updatePreferenceState();
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+ if (mConnectivityPreference != null) {
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+ setCaptivePortalURLs(
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+ mContext.getContentResolver(),
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+ Integer.parseInt(mConnectivityPreference.getValue()));
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+ }
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+ }
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+
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+ private void setCaptivePortalURLs(ContentResolver cr, int mode) {
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+ switch (mode) {
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+ case STANDARD_CAPTIVE_PORTAL_HTTP_URL_INTVAL:
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
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+ STANDARD_HTTP_URL);
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
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+ STANDARD_HTTPS_URL);
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
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+ STANDARD_FALLBACK_URL);
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+ Settings.Global.putString(
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+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
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+ STANDARD_OTHER_FALLBACK_URLS);
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+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
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+ Settings.Global.CAPTIVE_PORTAL_MODE_PROMPT);
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+ break;
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+ default:
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+ // Default URLs as placeholder
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
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+ STANDARD_HTTP_URL);
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_HTTPS_URL,
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+ STANDARD_HTTPS_URL);
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+ Settings.Global.putString(cr, Settings.Global.CAPTIVE_PORTAL_FALLBACK_URL,
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+ STANDARD_FALLBACK_URL);
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+ Settings.Global.putString(
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+ cr, Settings.Global.CAPTIVE_PORTAL_OTHER_FALLBACK_URLS,
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+ STANDARD_OTHER_FALLBACK_URLS);
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+ Settings.Global.putInt(cr, Settings.Global.CAPTIVE_PORTAL_MODE,
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2022-10-12 23:30:12 +00:00
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+ Settings.Global.CAPTIVE_PORTAL_MODE_IGNORE);
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2022-10-12 20:14:31 +00:00
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+ }
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+ }
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+
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+ @Override
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+ public boolean onPreferenceChange(Preference preference, Object value) {
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+ final String key = preference.getKey();
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+ if (KEY_CONNECTIVITY_CHECK_SETTINGS.equals(key)) {
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+ setCaptivePortalURLs(mContext.getContentResolver(),
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+ Integer.parseInt((String)value));
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+ return true;
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+ } else {
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+ return false;
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+ }
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+ }
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+
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+ private EnforcedAdmin getEnforcedAdmin() {
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+ return RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
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+ mContext, UserManager.DISALLOW_CONFIG_PRIVATE_DNS,
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+ UserHandle.myUserId());
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+ }
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+
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+ private boolean isDisabledByAdmin() { return getEnforcedAdmin() != null; }
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+}
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diff --git a/src/com/android/settings/network/NetworkDashboardFragment.java b/src/com/android/settings/network/NetworkDashboardFragment.java
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index 286e4e36e5..2eb788fbd0 100644
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--- a/src/com/android/settings/network/NetworkDashboardFragment.java
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+++ b/src/com/android/settings/network/NetworkDashboardFragment.java
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@@ -119,6 +119,9 @@ public class NetworkDashboardFragment extends DashboardFragment implements
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}
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controllers.add(privateDnsPreferenceController);
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controllers.add(new NetworkProviderCallsSmsController(context, lifecycle));
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+ ConnectivityCheckPreferenceController connectivityCheck =
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+ new ConnectivityCheckPreferenceController(context);
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+ controllers.add(connectivityCheck);
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return controllers;
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}
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