Change WifiUtils.java into kotlin. (ef6c5ea0) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/wifi/WifiUtils.java

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	/*
	* Copyright (C) 2017 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.settingslib.wifi;

	import static android.net.wifi.WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLED;
	import static android.net.wifi.WifiConfiguration.NetworkSelectionStatus.getMaxNetworkSelectionDisableReason;

	import static com.android.settingslib.flags.Flags.newStatusBarIcons;

	import android.content.Context;
	import android.content.Intent;
	import android.graphics.drawable.Drawable;
	import android.icu.text.MessageFormat;
	import android.net.wifi.ScanResult;
	import android.net.wifi.WifiConfiguration;
	import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
	import android.net.wifi.WifiInfo;
	import android.net.wifi.sharedconnectivity.app.NetworkProviderInfo;
	import android.os.Bundle;
	import android.os.SystemClock;
	import android.util.Log;

	import androidx.annotation.VisibleForTesting;

	import com.android.settingslib.R;

	import java.util.HashMap;
	import java.util.Locale;
	import java.util.Map;

	public class WifiUtils {

	private static final String TAG = "WifiUtils";

	private static final int INVALID_RSSI = -127;

	/**
	* The intent action shows Wi-Fi dialog to connect Wi-Fi network.
	* <p>
	* Input: The calling package should put the chosen
	* com.android.wifitrackerlib.WifiEntry#getKey() to a string extra in the request bundle into
	* the {@link #EXTRA_CHOSEN_WIFI_ENTRY_KEY}.
	* <p>
	* Output: Nothing.
	*/
	@VisibleForTesting
	static final String ACTION_WIFI_DIALOG = "com.android.settings.WIFI_DIALOG";

	/**
	* Specify a key that indicates the WifiEntry to be configured.
	*/
	@VisibleForTesting
	static final String EXTRA_CHOSEN_WIFI_ENTRY_KEY = "key_chosen_wifientry_key";

	/**
	* The lookup key for a boolean that indicates whether a chosen WifiEntry request to connect to.
	* {@code true} means a chosen WifiEntry request to connect to.
	*/
	@VisibleForTesting
	static final String EXTRA_CONNECT_FOR_CALLER = "connect_for_caller";

	/**
	* The intent action shows network details settings to allow configuration of Wi-Fi.
	* <p>
	* In some cases, a matching Activity may not exist, so ensure you
	* safeguard against this.
	* <p>
	* Input: The calling package should put the chosen
	* com.android.wifitrackerlib.WifiEntry#getKey() to a string extra in the request bundle into
	* the {@link #KEY_CHOSEN_WIFIENTRY_KEY}.
	* <p>
	* Output: Nothing.
	*/
	public static final String ACTION_WIFI_DETAILS_SETTINGS =
	"android.settings.WIFI_DETAILS_SETTINGS";
	public static final String KEY_CHOSEN_WIFIENTRY_KEY = "key_chosen_wifientry_key";
	public static final String EXTRA_SHOW_FRAGMENT_ARGUMENTS = ":settings:show_fragment_args";

	static final int[] WIFI_PIE = getIconsBasedOnFlag();

	private static int[] getIconsBasedOnFlag() {
	if (newStatusBarIcons()) {
	return new int[] {
	R.drawable.ic_wifi_0,
	R.drawable.ic_wifi_1,
	R.drawable.ic_wifi_2,
	R.drawable.ic_wifi_3,
	R.drawable.ic_wifi_4
	};
	} else {
	return new int[] {
	com.android.internal.R.drawable.ic_wifi_signal_0,
	com.android.internal.R.drawable.ic_wifi_signal_1,
	com.android.internal.R.drawable.ic_wifi_signal_2,
	com.android.internal.R.drawable.ic_wifi_signal_3,
	com.android.internal.R.drawable.ic_wifi_signal_4
	};
	}
	}

	static final int[] NO_INTERNET_WIFI_PIE = getErrorIconsBasedOnFlag();

	private static int [] getErrorIconsBasedOnFlag() {
	if (newStatusBarIcons()) {
	return new int[] {
	R.drawable.ic_wifi_0_error,
	R.drawable.ic_wifi_1_error,
	R.drawable.ic_wifi_2_error,
	R.drawable.ic_wifi_3_error,
	R.drawable.ic_wifi_4_error
	};
	} else {
	return new int[] {
	R.drawable.ic_no_internet_wifi_signal_0,
	R.drawable.ic_no_internet_wifi_signal_1,
	R.drawable.ic_no_internet_wifi_signal_2,
	R.drawable.ic_no_internet_wifi_signal_3,
	R.drawable.ic_no_internet_wifi_signal_4
	};
	}
	}

	public static String buildLoggingSummary(AccessPoint accessPoint, WifiConfiguration config) {
	final StringBuilder summary = new StringBuilder();
	final WifiInfo info = accessPoint.getInfo();
	// Add RSSI/band information for this config, what was seen up to 6 seconds ago
	// verbose WiFi Logging is only turned on thru developers settings
	if (accessPoint.isActive() && info != null) {
	summary.append(" f=" + Integer.toString(info.getFrequency()));
	}
	summary.append(" " + getVisibilityStatus(accessPoint));
	if (config != null
	&& (config.getNetworkSelectionStatus().getNetworkSelectionStatus()
	!= NETWORK_SELECTION_ENABLED)) {
	summary.append(" (" + config.getNetworkSelectionStatus().getNetworkStatusString());
	if (config.getNetworkSelectionStatus().getDisableTime() > 0) {
	long now = System.currentTimeMillis();
	long diff = (now - config.getNetworkSelectionStatus().getDisableTime()) / 1000;
	long sec = diff % 60; //seconds
	long min = (diff / 60) % 60; //minutes
	long hour = (min / 60) % 60; //hours
	summary.append(", ");
	if (hour > 0) summary.append(Long.toString(hour) + "h ");
	summary.append(Long.toString(min) + "m ");
	summary.append(Long.toString(sec) + "s ");
	}
	summary.append(")");
	}

	if (config != null) {
	NetworkSelectionStatus networkStatus = config.getNetworkSelectionStatus();
	for (int reason = 0; reason <= getMaxNetworkSelectionDisableReason(); reason++) {
	if (networkStatus.getDisableReasonCounter(reason) != 0) {
	summary.append(" ")
	.append(NetworkSelectionStatus
	.getNetworkSelectionDisableReasonString(reason))
	.append("=")
	.append(networkStatus.getDisableReasonCounter(reason));
	}
	}
	}

	return summary.toString();
	}

	/**
	* Returns the visibility status of the WifiConfiguration.
	*
	* @return autojoin debugging information
	* TODO: use a string formatter
	* ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"]
	* For instance [-40,5/-30,2]
	*/
	@VisibleForTesting
	static String getVisibilityStatus(AccessPoint accessPoint) {
	final WifiInfo info = accessPoint.getInfo();
	StringBuilder visibility = new StringBuilder();
	StringBuilder scans24GHz = new StringBuilder();
	StringBuilder scans5GHz = new StringBuilder();
	StringBuilder scans60GHz = new StringBuilder();
	String bssid = null;

	if (accessPoint.isActive() && info != null) {
	bssid = info.getBSSID();
	if (bssid != null) {
	visibility.append(" ").append(bssid);
	}
	visibility.append(" standard = ").append(info.getWifiStandard());
	visibility.append(" rssi=").append(info.getRssi());
	visibility.append(" ");
	visibility.append(" score=").append(info.getScore());
	if (accessPoint.getSpeed() != AccessPoint.Speed.NONE) {
	visibility.append(" speed=").append(accessPoint.getSpeedLabel());
	}
	visibility.append(String.format(" tx=%.1f,", info.getSuccessfulTxPacketsPerSecond()));
	visibility.append(String.format("%.1f,", info.getRetriedTxPacketsPerSecond()));
	visibility.append(String.format("%.1f ", info.getLostTxPacketsPerSecond()));
	visibility.append(String.format("rx=%.1f", info.getSuccessfulRxPacketsPerSecond()));
	}

	int maxRssi5 = INVALID_RSSI;
	int maxRssi24 = INVALID_RSSI;
	int maxRssi60 = INVALID_RSSI;
	final int maxDisplayedScans = 4;
	int num5 = 0; // number of scanned BSSID on 5GHz band
	int num24 = 0; // number of scanned BSSID on 2.4Ghz band
	int num60 = 0; // number of scanned BSSID on 60Ghz band
	int numBlockListed = 0;

	// TODO: sort list by RSSI or age
	long nowMs = SystemClock.elapsedRealtime();
	for (ScanResult result : accessPoint.getScanResults()) {
	if (result == null) {
	continue;
	}
	if (result.frequency >= AccessPoint.LOWER_FREQ_5GHZ
	&& result.frequency <= AccessPoint.HIGHER_FREQ_5GHZ) {
	// Strictly speaking: [4915, 5825]
	num5++;

	if (result.level > maxRssi5) {
	maxRssi5 = result.level;
	}
	if (num5 <= maxDisplayedScans) {
	scans5GHz.append(
	verboseScanResultSummary(accessPoint, result, bssid,
	nowMs));
	}
	} else if (result.frequency >= AccessPoint.LOWER_FREQ_24GHZ
	&& result.frequency <= AccessPoint.HIGHER_FREQ_24GHZ) {
	// Strictly speaking: [2412, 2482]
	num24++;

	if (result.level > maxRssi24) {
	maxRssi24 = result.level;
	}
	if (num24 <= maxDisplayedScans) {
	scans24GHz.append(
	verboseScanResultSummary(accessPoint, result, bssid,
	nowMs));
	}
	} else if (result.frequency >= AccessPoint.LOWER_FREQ_60GHZ
	&& result.frequency <= AccessPoint.HIGHER_FREQ_60GHZ) {
	// Strictly speaking: [60000, 61000]
	num60++;

	if (result.level > maxRssi60) {
	maxRssi60 = result.level;
	}
	if (num60 <= maxDisplayedScans) {
	scans60GHz.append(
	verboseScanResultSummary(accessPoint, result, bssid,
	nowMs));
	}
	}
	}
	visibility.append(" [");
	if (num24 > 0) {
	visibility.append("(").append(num24).append(")");
	if (num24 > maxDisplayedScans) {
	visibility.append("max=").append(maxRssi24).append(",");
	}
	visibility.append(scans24GHz.toString());
	}
	visibility.append(";");
	if (num5 > 0) {
	visibility.append("(").append(num5).append(")");
	if (num5 > maxDisplayedScans) {
	visibility.append("max=").append(maxRssi5).append(",");
	}
	visibility.append(scans5GHz.toString());
	}
	visibility.append(";");
	if (num60 > 0) {
	visibility.append("(").append(num60).append(")");
	if (num60 > maxDisplayedScans) {
	visibility.append("max=").append(maxRssi60).append(",");
	}
	visibility.append(scans60GHz.toString());
	}
	if (numBlockListed > 0) {
	visibility.append("!").append(numBlockListed);
	}
	visibility.append("]");

	return visibility.toString();
	}

	@VisibleForTesting
	/* package */ static String verboseScanResultSummary(AccessPoint accessPoint, ScanResult result,
	String bssid, long nowMs) {
	StringBuilder stringBuilder = new StringBuilder();
	stringBuilder.append(" \n{").append(result.BSSID);
	if (result.BSSID.equals(bssid)) {
	stringBuilder.append("*");
	}
	stringBuilder.append("=").append(result.frequency);
	stringBuilder.append(",").append(result.level);
	int speed = getSpecificApSpeed(result, accessPoint.getScoredNetworkCache());
	if (speed != AccessPoint.Speed.NONE) {
	stringBuilder.append(",")
	.append(accessPoint.getSpeedLabel(speed));
	}
	int ageSeconds = (int) (nowMs - result.timestamp / 1000) / 1000;
	stringBuilder.append(",").append(ageSeconds).append("s");
	stringBuilder.append("}");
	return stringBuilder.toString();
	}

	@AccessPoint.Speed
	private static int getSpecificApSpeed(ScanResult result,
	Map<String, TimestampedScoredNetwork> scoredNetworkCache) {
	TimestampedScoredNetwork timedScore = scoredNetworkCache.get(result.BSSID);
	if (timedScore == null) {
	return AccessPoint.Speed.NONE;
	}
	// For debugging purposes we may want to use mRssi rather than result.level as the average
	// speed wil be determined by mRssi
	return timedScore.getScore().calculateBadge(result.level);
	}

	public static String getMeteredLabel(Context context, WifiConfiguration config) {
	// meteredOverride is whether the user manually set the metered setting or not.
	// meteredHint is whether the network itself is telling us that it is metered
	if (config.meteredOverride == WifiConfiguration.METERED_OVERRIDE_METERED
	\|\| (config.meteredHint && !isMeteredOverridden(config))) {
	return context.getString(R.string.wifi_metered_label);
	}
	return context.getString(R.string.wifi_unmetered_label);
	}

	/**
	* Returns the Internet icon resource for a given RSSI level.
	*
	* @param level The number of bars to show (0-4)
	* @param noInternet True if a connected Wi-Fi network cannot access the Internet
	*/
	public static int getInternetIconResource(int level, boolean noInternet) {
	int wifiLevel = level;
	if (wifiLevel < 0) {
	Log.e(TAG, "Wi-Fi level is out of range! level:" + level);
	wifiLevel = 0;
	} else if (level >= WIFI_PIE.length) {
	Log.e(TAG, "Wi-Fi level is out of range! level:" + level);
	wifiLevel = WIFI_PIE.length - 1;
	}
	return noInternet ? NO_INTERNET_WIFI_PIE[wifiLevel] : WIFI_PIE[wifiLevel];
	}

	/**
	* Returns the Hotspot network icon resource.
	*
	* @param deviceType The device type of Hotspot network
	*/
	public static int getHotspotIconResource(int deviceType) {
	return switch (deviceType) {
	case NetworkProviderInfo.DEVICE_TYPE_PHONE -> R.drawable.ic_hotspot_phone;
	case NetworkProviderInfo.DEVICE_TYPE_TABLET -> R.drawable.ic_hotspot_tablet;
	case NetworkProviderInfo.DEVICE_TYPE_LAPTOP -> R.drawable.ic_hotspot_laptop;
	case NetworkProviderInfo.DEVICE_TYPE_WATCH -> R.drawable.ic_hotspot_watch;
	case NetworkProviderInfo.DEVICE_TYPE_AUTO -> R.drawable.ic_hotspot_auto;
	default -> R.drawable.ic_hotspot_phone; // Return phone icon as default.
	};
	}

	/**
	* Wrapper the {@link #getInternetIconResource} for testing compatibility.
	*/
	public static class InternetIconInjector {

	protected final Context mContext;

	public InternetIconInjector(Context context) {
	mContext = context;
	}

	/**
	* Returns the Internet icon for a given RSSI level.
	*
	* @param noInternet True if a connected Wi-Fi network cannot access the Internet
	* @param level The number of bars to show (0-4)
	*/
	public Drawable getIcon(boolean noInternet, int level) {
	return mContext.getDrawable(WifiUtils.getInternetIconResource(level, noInternet));
	}
	}

	public static boolean isMeteredOverridden(WifiConfiguration config) {
	return config.meteredOverride != WifiConfiguration.METERED_OVERRIDE_NONE;
	}

	/**
	* Returns the Intent for Wi-Fi dialog.
	*
	* @param key The Wi-Fi entry key
	* @param connectForCaller True if a chosen WifiEntry request to connect to
	*/
	public static Intent getWifiDialogIntent(String key, boolean connectForCaller) {
	final Intent intent = new Intent(ACTION_WIFI_DIALOG);
	intent.putExtra(EXTRA_CHOSEN_WIFI_ENTRY_KEY, key);
	intent.putExtra(EXTRA_CONNECT_FOR_CALLER, connectForCaller);
	return intent;
	}

	/**
	* Returns the Intent for Wi-Fi network details settings.
	*
	* @param key The Wi-Fi entry key
	*/
	public static Intent getWifiDetailsSettingsIntent(String key) {
	final Intent intent = new Intent(ACTION_WIFI_DETAILS_SETTINGS);
	final Bundle bundle = new Bundle();
	bundle.putString(KEY_CHOSEN_WIFIENTRY_KEY, key);
	intent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, bundle);
	return intent;
	}

	/**
	* Returns the string of Wi-Fi tethering summary for connected devices.
	*
	* @param context The application context
	* @param connectedDevices The count of connected devices
	*/
	public static String getWifiTetherSummaryForConnectedDevices(Context context,
	int connectedDevices) {
	MessageFormat msgFormat = new MessageFormat(
	context.getResources().getString(R.string.wifi_tether_connected_summary),
	Locale.getDefault());
	Map<String, Object> arguments = new HashMap<>();
	arguments.put("count", connectedDevices);
	return msgFormat.format(arguments);
	}
	}

packages/SettingsLib/src/com/android/settingslib/wifi/WifiUtils.kt

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