DivestOS/Patches/LineageOS-21.0/android_frameworks_base/0015-WiFi_Timeout.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Dmitry Muhomor <muhomor.dmitry@gmail.com>
Date: Sun, 31 Jul 2022 10:06:14 +0300
Subject: [PATCH] Wi-Fi auto turn off
Co-authored-by: Pratyush <codelab@pratyush.dev>
---
core/java/android/provider/Settings.java | 6 ++
.../android/server/ext/SystemServerExt.java | 5 +-
.../com/android/server/ext/WifiAutoOff.java | 69 +++++++++++++++++++
3 files changed, 79 insertions(+), 1 deletion(-)
create mode 100644 services/core/java/com/android/server/ext/WifiAutoOff.java
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index ec292016d3db..c22d62c0d40c 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -18680,6 +18680,12 @@ public final class Settings {
*/
public static final String SETTINGS_REBOOT_AFTER_TIMEOUT = "settings_reboot_after_timeout";
+ /**
+ * The amount of time in milliseconds before a disconnected Wi-Fi adapter is turned off
+ * @hide
+ */
+ public static final String WIFI_OFF_TIMEOUT = "wifi_off_timeout";
+
/**
* Whether repair mode is active on the device.
* <p>
diff --git a/services/core/java/com/android/server/ext/SystemServerExt.java b/services/core/java/com/android/server/ext/SystemServerExt.java
index 83d895650473..66350e2b7f74 100644
--- a/services/core/java/com/android/server/ext/SystemServerExt.java
+++ b/services/core/java/com/android/server/ext/SystemServerExt.java
@@ -19,6 +19,7 @@ package com.android.server.ext;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.IntentFilter;
+import android.content.pm.PackageManager;
import android.os.Handler;
import com.android.internal.os.BackgroundThread;
@@ -49,7 +50,9 @@ public final class SystemServerExt {
}
void initBgThread() {
-
+ if (packageManager.hasSystemFeature(PackageManager.FEATURE_WIFI, 0)) {
+ new WifiAutoOff(this);
+ }
}
public void registerReceiver(BroadcastReceiver receiver, IntentFilter filter, Handler handler) {
diff --git a/services/core/java/com/android/server/ext/WifiAutoOff.java b/services/core/java/com/android/server/ext/WifiAutoOff.java
new file mode 100644
index 000000000000..c7a3c05fe766
--- /dev/null
+++ b/services/core/java/com/android/server/ext/WifiAutoOff.java
@@ -0,0 +1,69 @@
+package com.android.server.ext;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
+import android.os.Build;
+import android.provider.Settings;
+import android.util.Slog;
+
+class WifiAutoOff extends DelayedConditionalAction {
+ private final WifiManager wifiManager;
+
+ WifiAutoOff(SystemServerExt sse) {
+ super(sse, sse.bgHandler);
+ wifiManager = sse.context.getSystemService(WifiManager.class);
+ }
+
+ @Override
+ protected boolean shouldScheduleAlarm() {
+ return isWifiEnabledAndNotConnected();
+ }
+
+ @Override
+ protected void alarmTriggered() {
+ if (isWifiEnabledAndNotConnected()) {
+ wifiManager.setWifiEnabled(false);
+ }
+ }
+
+ private boolean isWifiEnabledAndNotConnected() {
+ if (wifiManager.isWifiEnabled()) {
+ WifiInfo i = wifiManager.getConnectionInfo();
+ if (i == null) {
+ return true;
+ }
+ return i.getBSSID() == null;
+ }
+
+ return false;
+ }
+
+ @Override
+ protected void registerStateListener() {
+ IntentFilter f = new IntentFilter();
+ f.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
+ f.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
+ // ConnectivityManager APIs seem unfit for listening to Wi-Fi state specifically, they look
+ // to be higher level than that, eg VPN over Wi-Fi isn't considered to be a Wi-Fi connection
+ // by ConnectivityManager
+
+ sse.registerReceiver(new BroadcastReceiver() {
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ if (Build.isDebuggable()) {
+ Slog.d("WifiAutoOff", "" + intent + ", extras " + intent.getExtras().deepCopy());
+ }
+ update();
+ }
+ }, f, handler);
+ }
+
+ @Override
+ protected String getDelayGlobalSettingsKey() {
+ return Settings.Global.WIFI_OFF_TIMEOUT;
+ }
+}