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/*
* Copyright (C) 2018 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.server.wifi.hotspot2;
import android.annotation.NonNull;
import android.content.Context;
import android.os.Build;
import android.os.SystemProperties;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.telephony.TelephonyProperties;
import com.android.server.wifi.WifiNative;
import java.util.Locale;
/**
* Provide APIs for retrieving system information, so that they can be mocked for unit tests.
*/
public class SystemInfo {
public static final String TAG = "SystemInfo";
public static final String UNKNOWN_INFO = "Unknown";
private final TelephonyManager mTelephonyManager;
private final WifiNative mWifiNative;
private static SystemInfo sSystemInfo = null;
@VisibleForTesting
SystemInfo(Context context, WifiNative wifiNative) {
// TODO(b/132188983): inject this using WifiInjector
mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
mWifiNative = wifiNative;
}
public static SystemInfo getInstance(@NonNull Context context, @NonNull WifiNative wifiNative) {
if (sSystemInfo == null) {
sSystemInfo = new SystemInfo(context, wifiNative);
}
return sSystemInfo;
}
/**
* Get the system language.
*
* @return current language code
*/
public String getLanguage() {
return Locale.getDefault().getLanguage();
}
/**
* Get the device manufacturer info
*
* @return the device manufacturer info or {@link Build#UNKNOWN} if not set
*/
public String getDeviceManufacturer() {
return Build.MANUFACTURER;
}
/**
* Get the device model info.
*
* @return the device model info or {@link Build#UNKNOWN} if not set
*/
public String getDeviceModel() {
return Build.MODEL;
}
/**
* Get the Wifi Mac address for primary interface.
*
* TODO(b/80092273): need to check if this privacy information is required for Passpoint R2.
* @param ifaceName Name of the interface.
* @return string containing the MAC address or null on a failed call
*/
public String getMacAddress(@NonNull String ifaceName) {
return mWifiNative.getMacAddress(ifaceName);
}
/**
* Get the device ID. Either IMEI or MEID will be returned based on the installed SIM.
* {@link #UNKNOWN_INFO} will be returned if no SIM is installed.
*
* @return String representing device ID
*/
public String getDeviceId() {
TelephonyManager defaultDataTm = mTelephonyManager.createForSubscriptionId(
SubscriptionManager.getDefaultDataSubscriptionId());
// IMEI will be provided for GSM SIM.
String imei = defaultDataTm.getImei();
if (!TextUtils.isEmpty(imei)) {
return imei;
}
// MEID will be provided for CMDA SIM.
String meid = defaultDataTm.getMeid();
if (!TextUtils.isEmpty(meid)) {
return meid;
}
return UNKNOWN_INFO;
}
/**
* Get the hardware version.
*
* TODO(b/80092273): need to check if this privacy information is required for Passpoint R2.
* @return the version that consists of hardware name and revision number.
*/
public String getHwVersion() {
return Build.HARDWARE + "." + SystemProperties.get("ro.revision", "0");
}
/**
* Get the software version.
*
* @return the build release version.
*/
public String getSoftwareVersion() {
return new StringBuffer("Android ").append(Build.VERSION.RELEASE).toString();
}
/**
* Get the firmware version.
*
* @return the version that consists of build id and baseband version.
*/
public String getFirmwareVersion() {
return new StringBuffer(Build.ID)
.append("/")
.append(SystemProperties.get(TelephonyProperties.PROPERTY_BASEBAND_VERSION,
UNKNOWN_INFO)).toString();
}
}
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