| /* |
| * Copyright (C) 2019 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.location; |
| |
| import android.annotation.Nullable; |
| import android.annotation.SuppressLint; |
| import android.app.AppOpsManager; |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.location.LocationManager; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.PowerManager; |
| import android.os.UserHandle; |
| import android.text.TextUtils; |
| import android.util.ArrayMap; |
| import android.util.Log; |
| import android.util.StatsLog; |
| |
| import com.android.internal.R; |
| import com.android.internal.location.GpsNetInitiatedHandler; |
| import com.android.internal.notification.SystemNotificationChannels; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Handles GNSS non-framework location access user visibility and control. |
| * |
| * The state of the GnssVisibilityControl object must be accessed/modified through the Handler |
| * thread only. |
| */ |
| class GnssVisibilityControl { |
| private static final String TAG = "GnssVisibilityControl"; |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private static final String LOCATION_PERMISSION_NAME = |
| "android.permission.ACCESS_FINE_LOCATION"; |
| |
| private static final String[] NO_LOCATION_ENABLED_PROXY_APPS = new String[0]; |
| |
| // Max wait time for synchronous method onGpsEnabledChanged() to run. |
| private static final long ON_GPS_ENABLED_CHANGED_TIMEOUT_MILLIS = 3 * 1000; |
| |
| // How long to display location icon for each non-framework non-emergency location request. |
| private static final long LOCATION_ICON_DISPLAY_DURATION_MILLIS = 5 * 1000; |
| |
| // Wakelocks |
| private static final String WAKELOCK_KEY = TAG; |
| private static final long WAKELOCK_TIMEOUT_MILLIS = 60 * 1000; |
| private final PowerManager.WakeLock mWakeLock; |
| |
| private final AppOpsManager mAppOps; |
| private final PackageManager mPackageManager; |
| |
| private final Handler mHandler; |
| private final Context mContext; |
| private final GpsNetInitiatedHandler mNiHandler; |
| |
| private boolean mIsGpsEnabled; |
| |
| private static final class ProxyAppState { |
| private boolean mHasLocationPermission; |
| private boolean mIsLocationIconOn; |
| |
| private ProxyAppState(boolean hasLocationPermission) { |
| mHasLocationPermission = hasLocationPermission; |
| } |
| } |
| |
| // Number of non-framework location access proxy apps is expected to be small (< 5). |
| private static final int ARRAY_MAP_INITIAL_CAPACITY_PROXY_APPS_STATE = 5; |
| private ArrayMap<String, ProxyAppState> mProxyAppsState = new ArrayMap<>( |
| ARRAY_MAP_INITIAL_CAPACITY_PROXY_APPS_STATE); |
| |
| private PackageManager.OnPermissionsChangedListener mOnPermissionsChangedListener = |
| uid -> runOnHandler(() -> handlePermissionsChanged(uid)); |
| |
| GnssVisibilityControl(Context context, Looper looper, GpsNetInitiatedHandler niHandler) { |
| mContext = context; |
| PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, WAKELOCK_KEY); |
| mHandler = new Handler(looper); |
| mNiHandler = niHandler; |
| mAppOps = mContext.getSystemService(AppOpsManager.class); |
| mPackageManager = mContext.getPackageManager(); |
| |
| // Complete initialization as the first event to run in mHandler thread. After that, |
| // all object state read/update events run in the mHandler thread. |
| runOnHandler(this::handleInitialize); |
| } |
| |
| void onGpsEnabledChanged(boolean isEnabled) { |
| // The GnssLocationProvider's methods: handleEnable() calls this method after native_init() |
| // and handleDisable() calls this method before native_cleanup(). This method must be |
| // executed synchronously so that the NFW location access permissions are disabled in |
| // the HAL before native_cleanup() method is called. |
| // |
| // NOTE: Since improper use of runWithScissors() method can result in deadlocks, the method |
| // doc recommends limiting its use to cases where some initialization steps need to be |
| // executed in sequence before continuing which fits this scenario. |
| if (mHandler.runWithScissors(() -> handleGpsEnabledChanged(isEnabled), |
| ON_GPS_ENABLED_CHANGED_TIMEOUT_MILLIS)) { |
| return; |
| } |
| |
| // After timeout, the method remains posted in the queue and hence future enable/disable |
| // calls to this method will all get executed in the correct sequence. But this timeout |
| // situation should not even arise because runWithScissors() will run in the caller's |
| // thread without blocking as it is the same thread as mHandler's thread. |
| if (!isEnabled) { |
| Log.w(TAG, "Native call to disable non-framework location access in GNSS HAL may" |
| + " get executed after native_cleanup()."); |
| } |
| } |
| |
| void reportNfwNotification(String proxyAppPackageName, byte protocolStack, |
| String otherProtocolStackName, byte requestor, String requestorId, byte responseType, |
| boolean inEmergencyMode, boolean isCachedLocation) { |
| runOnHandler(() -> handleNfwNotification( |
| new NfwNotification(proxyAppPackageName, protocolStack, otherProtocolStackName, |
| requestor, requestorId, responseType, inEmergencyMode, isCachedLocation))); |
| } |
| |
| void onConfigurationUpdated(GnssConfiguration configuration) { |
| // The configuration object must be accessed only in the caller thread and not in mHandler. |
| List<String> nfwLocationAccessProxyApps = configuration.getProxyApps(); |
| runOnHandler(() -> handleUpdateProxyApps(nfwLocationAccessProxyApps)); |
| } |
| |
| private void handleInitialize() { |
| listenForProxyAppsPackageUpdates(); |
| } |
| |
| private void listenForProxyAppsPackageUpdates() { |
| // Listen for proxy apps package installation, removal events. |
| IntentFilter intentFilter = new IntentFilter(); |
| intentFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| intentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| intentFilter.addAction(Intent.ACTION_PACKAGE_REPLACED); |
| intentFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| intentFilter.addDataScheme("package"); |
| mContext.registerReceiverAsUser(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action == null) { |
| return; |
| } |
| |
| switch (action) { |
| case Intent.ACTION_PACKAGE_ADDED: |
| case Intent.ACTION_PACKAGE_REMOVED: |
| case Intent.ACTION_PACKAGE_REPLACED: |
| case Intent.ACTION_PACKAGE_CHANGED: |
| String pkgName = intent.getData().getEncodedSchemeSpecificPart(); |
| handleProxyAppPackageUpdate(pkgName, action); |
| break; |
| } |
| } |
| }, UserHandle.ALL, intentFilter, null, mHandler); |
| } |
| |
| private void handleProxyAppPackageUpdate(String pkgName, String action) { |
| final ProxyAppState proxyAppState = mProxyAppsState.get(pkgName); |
| if (proxyAppState == null) { |
| return; // ignore, pkgName is not one of the proxy apps in our list. |
| } |
| |
| if (DEBUG) Log.d(TAG, "Proxy app " + pkgName + " package changed: " + action); |
| final boolean updatedLocationPermission = shouldEnableLocationPermissionInGnssHal(pkgName); |
| if (proxyAppState.mHasLocationPermission != updatedLocationPermission) { |
| // Permission changed. So, update the GNSS HAL with the updated list. |
| Log.i(TAG, "Proxy app " + pkgName + " location permission changed." |
| + " IsLocationPermissionEnabled: " + updatedLocationPermission); |
| proxyAppState.mHasLocationPermission = updatedLocationPermission; |
| updateNfwLocationAccessProxyAppsInGnssHal(); |
| } |
| } |
| |
| private void handleUpdateProxyApps(List<String> nfwLocationAccessProxyApps) { |
| if (!isProxyAppListUpdated(nfwLocationAccessProxyApps)) { |
| return; |
| } |
| |
| if (nfwLocationAccessProxyApps.isEmpty()) { |
| // Stop listening for app permission changes. Clear the app list in GNSS HAL. |
| if (!mProxyAppsState.isEmpty()) { |
| mPackageManager.removeOnPermissionsChangeListener(mOnPermissionsChangedListener); |
| resetProxyAppsState(); |
| updateNfwLocationAccessProxyAppsInGnssHal(); |
| } |
| return; |
| } |
| |
| if (mProxyAppsState.isEmpty()) { |
| mPackageManager.addOnPermissionsChangeListener(mOnPermissionsChangedListener); |
| } else { |
| resetProxyAppsState(); |
| } |
| |
| for (String proxyAppPkgName : nfwLocationAccessProxyApps) { |
| ProxyAppState proxyAppState = new ProxyAppState(shouldEnableLocationPermissionInGnssHal( |
| proxyAppPkgName)); |
| mProxyAppsState.put(proxyAppPkgName, proxyAppState); |
| } |
| |
| updateNfwLocationAccessProxyAppsInGnssHal(); |
| } |
| |
| private void resetProxyAppsState() { |
| // Clear location icons displayed. |
| for (Map.Entry<String, ProxyAppState> entry : mProxyAppsState.entrySet()) { |
| ProxyAppState proxyAppState = entry.getValue(); |
| if (!proxyAppState.mIsLocationIconOn) { |
| continue; |
| } |
| |
| mHandler.removeCallbacksAndMessages(proxyAppState); |
| final ApplicationInfo proxyAppInfo = getProxyAppInfo(entry.getKey()); |
| if (proxyAppInfo != null) { |
| clearLocationIcon(proxyAppState, proxyAppInfo.uid, entry.getKey()); |
| } |
| } |
| mProxyAppsState.clear(); |
| } |
| |
| private boolean isProxyAppListUpdated(List<String> nfwLocationAccessProxyApps) { |
| if (nfwLocationAccessProxyApps.size() != mProxyAppsState.size()) { |
| return true; |
| } |
| |
| for (String nfwLocationAccessProxyApp : nfwLocationAccessProxyApps) { |
| if (!mProxyAppsState.containsKey(nfwLocationAccessProxyApp)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private void handleGpsEnabledChanged(boolean isGpsEnabled) { |
| if (DEBUG) { |
| Log.d(TAG, "handleGpsEnabledChanged, mIsGpsEnabled: " + mIsGpsEnabled |
| + ", isGpsEnabled: " + isGpsEnabled); |
| } |
| |
| // The proxy app list in the GNSS HAL needs to be configured if it restarts after |
| // a crash. So, update HAL irrespective of the previous GPS enabled state. |
| mIsGpsEnabled = isGpsEnabled; |
| if (!mIsGpsEnabled) { |
| disableNfwLocationAccess(); |
| return; |
| } |
| |
| setNfwLocationAccessProxyAppsInGnssHal(getLocationPermissionEnabledProxyApps()); |
| } |
| |
| private void disableNfwLocationAccess() { |
| setNfwLocationAccessProxyAppsInGnssHal(NO_LOCATION_ENABLED_PROXY_APPS); |
| } |
| |
| // Represents NfwNotification structure in IGnssVisibilityControlCallback.hal |
| private static class NfwNotification { |
| // These must match with NfwResponseType enum in IGnssVisibilityControlCallback.hal. |
| private static final byte NFW_RESPONSE_TYPE_REJECTED = 0; |
| private static final byte NFW_RESPONSE_TYPE_ACCEPTED_NO_LOCATION_PROVIDED = 1; |
| private static final byte NFW_RESPONSE_TYPE_ACCEPTED_LOCATION_PROVIDED = 2; |
| |
| private final String mProxyAppPackageName; |
| private final byte mProtocolStack; |
| private final String mOtherProtocolStackName; |
| private final byte mRequestor; |
| private final String mRequestorId; |
| private final byte mResponseType; |
| private final boolean mInEmergencyMode; |
| private final boolean mIsCachedLocation; |
| |
| private NfwNotification(String proxyAppPackageName, byte protocolStack, |
| String otherProtocolStackName, byte requestor, String requestorId, |
| byte responseType, boolean inEmergencyMode, boolean isCachedLocation) { |
| mProxyAppPackageName = proxyAppPackageName; |
| mProtocolStack = protocolStack; |
| mOtherProtocolStackName = otherProtocolStackName; |
| mRequestor = requestor; |
| mRequestorId = requestorId; |
| mResponseType = responseType; |
| mInEmergencyMode = inEmergencyMode; |
| mIsCachedLocation = isCachedLocation; |
| } |
| |
| @SuppressLint("DefaultLocale") |
| public String toString() { |
| return String.format( |
| "{proxyAppPackageName: %s, protocolStack: %d, otherProtocolStackName: %s, " |
| + "requestor: %d, requestorId: %s, responseType: %s, inEmergencyMode:" |
| + " %b, isCachedLocation: %b}", |
| mProxyAppPackageName, mProtocolStack, mOtherProtocolStackName, mRequestor, |
| mRequestorId, getResponseTypeAsString(), mInEmergencyMode, mIsCachedLocation); |
| } |
| |
| private String getResponseTypeAsString() { |
| switch (mResponseType) { |
| case NFW_RESPONSE_TYPE_REJECTED: |
| return "REJECTED"; |
| case NFW_RESPONSE_TYPE_ACCEPTED_NO_LOCATION_PROVIDED: |
| return "ACCEPTED_NO_LOCATION_PROVIDED"; |
| case NFW_RESPONSE_TYPE_ACCEPTED_LOCATION_PROVIDED: |
| return "ACCEPTED_LOCATION_PROVIDED"; |
| default: |
| return "<Unknown>"; |
| } |
| } |
| |
| private boolean isRequestAccepted() { |
| return mResponseType != NfwNotification.NFW_RESPONSE_TYPE_REJECTED; |
| } |
| |
| private boolean isLocationProvided() { |
| return mResponseType == NfwNotification.NFW_RESPONSE_TYPE_ACCEPTED_LOCATION_PROVIDED; |
| } |
| |
| private boolean isRequestAttributedToProxyApp() { |
| return !TextUtils.isEmpty(mProxyAppPackageName); |
| } |
| |
| private boolean isEmergencyRequestNotification() { |
| return mInEmergencyMode && !isRequestAttributedToProxyApp(); |
| } |
| } |
| |
| private void handlePermissionsChanged(int uid) { |
| if (mProxyAppsState.isEmpty()) { |
| return; |
| } |
| |
| for (Map.Entry<String, ProxyAppState> entry : mProxyAppsState.entrySet()) { |
| final String proxyAppPkgName = entry.getKey(); |
| final ApplicationInfo proxyAppInfo = getProxyAppInfo(proxyAppPkgName); |
| if (proxyAppInfo == null || proxyAppInfo.uid != uid) { |
| continue; |
| } |
| |
| final boolean isLocationPermissionEnabled = shouldEnableLocationPermissionInGnssHal( |
| proxyAppPkgName); |
| ProxyAppState proxyAppState = entry.getValue(); |
| if (isLocationPermissionEnabled != proxyAppState.mHasLocationPermission) { |
| Log.i(TAG, "Proxy app " + proxyAppPkgName + " location permission changed." |
| + " IsLocationPermissionEnabled: " + isLocationPermissionEnabled); |
| proxyAppState.mHasLocationPermission = isLocationPermissionEnabled; |
| updateNfwLocationAccessProxyAppsInGnssHal(); |
| } |
| return; |
| } |
| } |
| |
| private ApplicationInfo getProxyAppInfo(String proxyAppPkgName) { |
| try { |
| return mPackageManager.getApplicationInfo(proxyAppPkgName, 0); |
| } catch (PackageManager.NameNotFoundException e) { |
| if (DEBUG) Log.d(TAG, "Proxy app " + proxyAppPkgName + " is not found."); |
| return null; |
| } |
| } |
| |
| private boolean shouldEnableLocationPermissionInGnssHal(String proxyAppPkgName) { |
| return isProxyAppInstalled(proxyAppPkgName) && hasLocationPermission(proxyAppPkgName); |
| } |
| |
| private boolean isProxyAppInstalled(String pkgName) { |
| ApplicationInfo proxyAppInfo = getProxyAppInfo(pkgName); |
| return (proxyAppInfo != null) && proxyAppInfo.enabled; |
| } |
| |
| private boolean hasLocationPermission(String pkgName) { |
| return mPackageManager.checkPermission(LOCATION_PERMISSION_NAME, pkgName) |
| == PackageManager.PERMISSION_GRANTED; |
| } |
| |
| private void updateNfwLocationAccessProxyAppsInGnssHal() { |
| if (!mIsGpsEnabled) { |
| return; // Keep non-framework location access disabled. |
| } |
| setNfwLocationAccessProxyAppsInGnssHal(getLocationPermissionEnabledProxyApps()); |
| } |
| |
| private void setNfwLocationAccessProxyAppsInGnssHal( |
| String[] locationPermissionEnabledProxyApps) { |
| final String proxyAppsStr = Arrays.toString(locationPermissionEnabledProxyApps); |
| Log.i(TAG, "Updating non-framework location access proxy apps in the GNSS HAL to: " |
| + proxyAppsStr); |
| boolean result = native_enable_nfw_location_access(locationPermissionEnabledProxyApps); |
| if (!result) { |
| Log.e(TAG, "Failed to update non-framework location access proxy apps in the" |
| + " GNSS HAL to: " + proxyAppsStr); |
| } |
| } |
| |
| private String[] getLocationPermissionEnabledProxyApps() { |
| // Get a count of proxy apps with location permission enabled for array creation size. |
| int countLocationPermissionEnabledProxyApps = 0; |
| for (ProxyAppState proxyAppState : mProxyAppsState.values()) { |
| if (proxyAppState.mHasLocationPermission) { |
| ++countLocationPermissionEnabledProxyApps; |
| } |
| } |
| |
| int i = 0; |
| String[] locationPermissionEnabledProxyApps = |
| new String[countLocationPermissionEnabledProxyApps]; |
| for (Map.Entry<String, ProxyAppState> entry : mProxyAppsState.entrySet()) { |
| final String proxyApp = entry.getKey(); |
| if (entry.getValue().mHasLocationPermission) { |
| locationPermissionEnabledProxyApps[i++] = proxyApp; |
| } |
| } |
| return locationPermissionEnabledProxyApps; |
| } |
| |
| private void handleNfwNotification(NfwNotification nfwNotification) { |
| if (DEBUG) Log.d(TAG, "Non-framework location access notification: " + nfwNotification); |
| |
| if (nfwNotification.isEmergencyRequestNotification()) { |
| handleEmergencyNfwNotification(nfwNotification); |
| return; |
| } |
| |
| final String proxyAppPkgName = nfwNotification.mProxyAppPackageName; |
| final ProxyAppState proxyAppState = mProxyAppsState.get(proxyAppPkgName); |
| final boolean isLocationRequestAccepted = nfwNotification.isRequestAccepted(); |
| final boolean isPermissionMismatched = isPermissionMismatched(proxyAppState, |
| nfwNotification); |
| logEvent(nfwNotification, isPermissionMismatched); |
| |
| if (!nfwNotification.isRequestAttributedToProxyApp()) { |
| // Handle cases where GNSS HAL implementation correctly rejected NFW location request. |
| // 1. GNSS HAL implementation doesn't provide location to any NFW location use cases. |
| // There is no Location Attribution App configured in the framework. |
| // 2. GNSS HAL implementation doesn't provide location to some NFW location use cases. |
| // Location Attribution Apps are configured only for the supported NFW location |
| // use cases. All other use cases which are not supported (and always rejected) by |
| // the GNSS HAL implementation will have proxyAppPackageName set to empty string. |
| if (!isLocationRequestAccepted) { |
| if (DEBUG) { |
| Log.d(TAG, "Non-framework location request rejected. ProxyAppPackageName field" |
| + " is not set in the notification: " + nfwNotification + ". Number of" |
| + " configured proxy apps: " + mProxyAppsState.size()); |
| } |
| return; |
| } |
| |
| Log.e(TAG, "ProxyAppPackageName field is not set. AppOps service not notified" |
| + " for notification: " + nfwNotification); |
| return; |
| } |
| |
| if (proxyAppState == null) { |
| Log.w(TAG, "Could not find proxy app " + proxyAppPkgName + " in the value specified for" |
| + " config parameter: " + GnssConfiguration.CONFIG_NFW_PROXY_APPS |
| + ". AppOps service not notified for notification: " + nfwNotification); |
| return; |
| } |
| |
| // Display location icon attributed to this proxy app. |
| final ApplicationInfo proxyAppInfo = getProxyAppInfo(proxyAppPkgName); |
| if (proxyAppInfo == null) { |
| Log.e(TAG, "Proxy app " + proxyAppPkgName + " is not found. AppOps service not " |
| + "notified for notification: " + nfwNotification); |
| return; |
| } |
| |
| if (nfwNotification.isLocationProvided()) { |
| showLocationIcon(proxyAppState, nfwNotification, proxyAppInfo.uid, proxyAppPkgName); |
| mAppOps.noteOpNoThrow(AppOpsManager.OP_FINE_LOCATION, proxyAppInfo.uid, |
| proxyAppPkgName); |
| } |
| |
| // Log proxy app permission mismatch between framework and GNSS HAL. |
| if (isPermissionMismatched) { |
| Log.w(TAG, "Permission mismatch. Proxy app " + proxyAppPkgName |
| + " location permission is set to " + proxyAppState.mHasLocationPermission |
| + " and GNSS HAL enabled is set to " + mIsGpsEnabled |
| + " but GNSS non-framework location access response type is " |
| + nfwNotification.getResponseTypeAsString() + " for notification: " |
| + nfwNotification); |
| } |
| } |
| |
| private boolean isPermissionMismatched(ProxyAppState proxyAppState, |
| NfwNotification nfwNotification) { |
| // Non-framework non-emergency location requests must be accepted only when IGnss.hal |
| // is enabled and the proxy app has location permission. |
| final boolean isLocationRequestAccepted = nfwNotification.isRequestAccepted(); |
| return (proxyAppState == null || !mIsGpsEnabled) ? isLocationRequestAccepted |
| : (proxyAppState.mHasLocationPermission != isLocationRequestAccepted); |
| } |
| |
| private void showLocationIcon(ProxyAppState proxyAppState, NfwNotification nfwNotification, |
| int uid, String proxyAppPkgName) { |
| // If we receive a new NfwNotification before the location icon is turned off for the |
| // previous notification, update the timer to extend the location icon display duration. |
| final boolean isLocationIconOn = proxyAppState.mIsLocationIconOn; |
| if (!isLocationIconOn) { |
| if (!updateLocationIcon(/* displayLocationIcon = */ true, uid, proxyAppPkgName)) { |
| Log.w(TAG, "Failed to show Location icon for notification: " + nfwNotification); |
| return; |
| } |
| proxyAppState.mIsLocationIconOn = true; |
| } else { |
| // Extend timer by canceling the current one and starting a new one. |
| mHandler.removeCallbacksAndMessages(proxyAppState); |
| } |
| |
| // Start timer to turn off location icon. proxyAppState is used as a token to cancel timer. |
| if (DEBUG) { |
| Log.d(TAG, "Location icon on. " + (isLocationIconOn ? "Extending" : "Setting") |
| + " icon display timer. Uid: " + uid + ", proxyAppPkgName: " + proxyAppPkgName); |
| } |
| if (!mHandler.postDelayed(() -> handleLocationIconTimeout(proxyAppPkgName), |
| /* token = */ proxyAppState, LOCATION_ICON_DISPLAY_DURATION_MILLIS)) { |
| clearLocationIcon(proxyAppState, uid, proxyAppPkgName); |
| Log.w(TAG, "Failed to show location icon for the full duration for notification: " |
| + nfwNotification); |
| } |
| } |
| |
| private void handleLocationIconTimeout(String proxyAppPkgName) { |
| // Get uid again instead of using the one provided in startOp() call as the app could have |
| // been uninstalled and reinstalled during the timeout duration (unlikely in real world). |
| final ApplicationInfo proxyAppInfo = getProxyAppInfo(proxyAppPkgName); |
| if (proxyAppInfo != null) { |
| clearLocationIcon(mProxyAppsState.get(proxyAppPkgName), proxyAppInfo.uid, |
| proxyAppPkgName); |
| } |
| } |
| |
| private void clearLocationIcon(@Nullable ProxyAppState proxyAppState, int uid, |
| String proxyAppPkgName) { |
| updateLocationIcon(/* displayLocationIcon = */ false, uid, proxyAppPkgName); |
| if (proxyAppState != null) proxyAppState.mIsLocationIconOn = false; |
| if (DEBUG) { |
| Log.d(TAG, "Location icon off. Uid: " + uid + ", proxyAppPkgName: " + proxyAppPkgName); |
| } |
| } |
| |
| private boolean updateLocationIcon(boolean displayLocationIcon, int uid, |
| String proxyAppPkgName) { |
| if (displayLocationIcon) { |
| // Need two calls to startOp() here with different op code so that the proxy app shows |
| // up in the recent location requests page and also the location icon gets displayed. |
| if (mAppOps.startOpNoThrow(AppOpsManager.OP_MONITOR_LOCATION, uid, |
| proxyAppPkgName) != AppOpsManager.MODE_ALLOWED) { |
| return false; |
| } |
| if (mAppOps.startOpNoThrow(AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION, uid, |
| proxyAppPkgName) != AppOpsManager.MODE_ALLOWED) { |
| mAppOps.finishOp(AppOpsManager.OP_MONITOR_LOCATION, uid, proxyAppPkgName); |
| return false; |
| } |
| } else { |
| mAppOps.finishOp(AppOpsManager.OP_MONITOR_LOCATION, uid, proxyAppPkgName); |
| mAppOps.finishOp(AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION, uid, proxyAppPkgName); |
| } |
| sendHighPowerMonitoringBroadcast(); |
| return true; |
| } |
| |
| private void sendHighPowerMonitoringBroadcast() { |
| // Send an intent to notify that a high power request has been added/removed so that |
| // the SystemUi checks the state of AppOps and updates the location icon accordingly. |
| Intent intent = new Intent(LocationManager.HIGH_POWER_REQUEST_CHANGE_ACTION); |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } |
| |
| private void handleEmergencyNfwNotification(NfwNotification nfwNotification) { |
| boolean isPermissionMismatched = false; |
| if (!nfwNotification.isRequestAccepted()) { |
| Log.e(TAG, "Emergency non-framework location request incorrectly rejected." |
| + " Notification: " + nfwNotification); |
| isPermissionMismatched = true; |
| } |
| |
| if (!mNiHandler.getInEmergency()) { |
| Log.w(TAG, "Emergency state mismatch. Device currently not in user initiated emergency" |
| + " session. Notification: " + nfwNotification); |
| isPermissionMismatched = true; |
| } |
| |
| logEvent(nfwNotification, isPermissionMismatched); |
| |
| if (nfwNotification.isLocationProvided()) { |
| postEmergencyLocationUserNotification(nfwNotification); |
| } |
| } |
| |
| private void postEmergencyLocationUserNotification(NfwNotification nfwNotification) { |
| // Emulate deprecated IGnssNi.hal user notification of emergency NI requests. |
| NotificationManager notificationManager = (NotificationManager) mContext |
| .getSystemService(Context.NOTIFICATION_SERVICE); |
| if (notificationManager == null) { |
| Log.w(TAG, "Could not notify user of emergency location request. Notification: " |
| + nfwNotification); |
| return; |
| } |
| |
| notificationManager.notifyAsUser(/* tag= */ null, /* notificationId= */ 0, |
| createEmergencyLocationUserNotification(mContext), UserHandle.ALL); |
| } |
| |
| private static Notification createEmergencyLocationUserNotification(Context context) { |
| // NOTE: Do not reuse the returned notification object as it will not reflect |
| // changes to notification text when the system language is changed. |
| final String firstLineText = context.getString(R.string.gpsNotifTitle); |
| final String secondLineText = context.getString(R.string.global_action_emergency); |
| final String accessibilityServicesText = firstLineText + " (" + secondLineText + ")"; |
| return new Notification.Builder(context, SystemNotificationChannels.NETWORK_ALERTS) |
| .setSmallIcon(com.android.internal.R.drawable.stat_sys_gps_on) |
| .setWhen(0) |
| .setOngoing(false) |
| .setAutoCancel(true) |
| .setColor(context.getColor( |
| com.android.internal.R.color.system_notification_accent_color)) |
| .setDefaults(0) |
| .setTicker(accessibilityServicesText) |
| .setContentTitle(firstLineText) |
| .setContentText(secondLineText) |
| .build(); |
| } |
| |
| private void logEvent(NfwNotification notification, boolean isPermissionMismatched) { |
| StatsLog.write(StatsLog.GNSS_NFW_NOTIFICATION_REPORTED, |
| notification.mProxyAppPackageName, |
| notification.mProtocolStack, |
| notification.mOtherProtocolStackName, |
| notification.mRequestor, |
| notification.mRequestorId, |
| notification.mResponseType, |
| notification.mInEmergencyMode, |
| notification.mIsCachedLocation, |
| isPermissionMismatched); |
| } |
| |
| private void runOnHandler(Runnable event) { |
| // Hold a wake lock until this message is delivered. |
| // Note that this assumes the message will not be removed from the queue before |
| // it is handled (otherwise the wake lock would be leaked). |
| mWakeLock.acquire(WAKELOCK_TIMEOUT_MILLIS); |
| if (!mHandler.post(runEventAndReleaseWakeLock(event))) { |
| mWakeLock.release(); |
| } |
| } |
| |
| private Runnable runEventAndReleaseWakeLock(Runnable event) { |
| return () -> { |
| try { |
| event.run(); |
| } finally { |
| mWakeLock.release(); |
| } |
| }; |
| } |
| |
| private native boolean native_enable_nfw_location_access(String[] proxyApps); |
| } |
