Merge "Use startOp/finishOp to show location icon for non-framework location" into qt-dev (2966db7c) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/location/GnssVisibilityControl.java

+144 −32

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		package com.android.server.location;

		import android.annotation.Nullable;
		import android.annotation.SuppressLint;
		import android.app.AppOpsManager;
		import android.app.Notification;
		@@ -27,6 +28,7 @@ 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;
		@@ -62,6 +64,9 @@ class GnssVisibilityControl {
		// 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;
		@@ -77,10 +82,19 @@ class GnssVisibilityControl {

		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_APP_TO_LOCATION_PERMISSIONS = 7;
		private ArrayMap<String, Boolean> mProxyAppToLocationPermissions = new ArrayMap<>(
		ARRAY_MAP_INITIAL_CAPACITY_PROXY_APP_TO_LOCATION_PERMISSIONS);
		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));
		@@ -173,18 +187,18 @@ class GnssVisibilityControl {
		}

		private void handleProxyAppPackageUpdate(String pkgName, String action) {
		final Boolean locationPermission = mProxyAppToLocationPermissions.get(pkgName);
		if (locationPermission == null) {
		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 (locationPermission != updatedLocationPermission) {
		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);
		mProxyAppToLocationPermissions.put(pkgName, updatedLocationPermission);
		proxyAppState.mHasLocationPermission = updatedLocationPermission;
		updateNfwLocationAccessProxyAppsInGnssHal();
		}
		}
		@@ -196,35 +210,53 @@ class GnssVisibilityControl {

		if (nfwLocationAccessProxyApps.isEmpty()) {
		// Stop listening for app permission changes. Clear the app list in GNSS HAL.
		if (!mProxyAppToLocationPermissions.isEmpty()) {
		if (!mProxyAppsState.isEmpty()) {
		mPackageManager.removeOnPermissionsChangeListener(mOnPermissionsChangedListener);
		mProxyAppToLocationPermissions.clear();
		resetProxyAppsState();
		updateNfwLocationAccessProxyAppsInGnssHal();
		}
		return;
		}

		if (mProxyAppToLocationPermissions.isEmpty()) {
		if (mProxyAppsState.isEmpty()) {
		mPackageManager.addOnPermissionsChangeListener(mOnPermissionsChangedListener);
		} else {
		mProxyAppToLocationPermissions.clear();
		resetProxyAppsState();
		}

		for (String proxyAppPkgName : nfwLocationAccessProxyApps) {
		mProxyAppToLocationPermissions.put(proxyAppPkgName,
		shouldEnableLocationPermissionInGnssHal(proxyAppPkgName));
		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() != mProxyAppToLocationPermissions.size()) {
		if (nfwLocationAccessProxyApps.size() != mProxyAppsState.size()) {
		return true;
		}

		for (String nfwLocationAccessProxyApp : nfwLocationAccessProxyApps) {
		if (!mProxyAppToLocationPermissions.containsKey(nfwLocationAccessProxyApp)) {
		if (!mProxyAppsState.containsKey(nfwLocationAccessProxyApp)) {
		return true;
		}
		}
		@@ -326,11 +358,11 @@ class GnssVisibilityControl {
		}

		private void handlePermissionsChanged(int uid) {
		if (mProxyAppToLocationPermissions.isEmpty()) {
		if (mProxyAppsState.isEmpty()) {
		return;
		}

		for (Map.Entry<String, Boolean> entry : mProxyAppToLocationPermissions.entrySet()) {
		for (Map.Entry<String, ProxyAppState> entry : mProxyAppsState.entrySet()) {
		final String proxyAppPkgName = entry.getKey();
		final ApplicationInfo proxyAppInfo = getProxyAppInfo(proxyAppPkgName);
		if (proxyAppInfo == null \|\| proxyAppInfo.uid != uid) {
		@@ -339,10 +371,11 @@ class GnssVisibilityControl {

		final boolean isLocationPermissionEnabled = shouldEnableLocationPermissionInGnssHal(
		proxyAppPkgName);
		if (isLocationPermissionEnabled != entry.getValue()) {
		ProxyAppState proxyAppState = entry.getValue();
		if (isLocationPermissionEnabled != proxyAppState.mHasLocationPermission) {
		Log.i(TAG, "Proxy app " + proxyAppPkgName + " location permission changed."
		+ " IsLocationPermissionEnabled: " + isLocationPermissionEnabled);
		entry.setValue(isLocationPermissionEnabled);
		proxyAppState.mHasLocationPermission = isLocationPermissionEnabled;
		updateNfwLocationAccessProxyAppsInGnssHal();
		}
		return;
		@@ -394,8 +427,8 @@ class GnssVisibilityControl {
		private String[] getLocationPermissionEnabledProxyApps() {
		// Get a count of proxy apps with location permission enabled for array creation size.
		int countLocationPermissionEnabledProxyApps = 0;
		for (Boolean hasLocationPermissionEnabled : mProxyAppToLocationPermissions.values()) {
		if (hasLocationPermissionEnabled) {
		for (ProxyAppState proxyAppState : mProxyAppsState.values()) {
		if (proxyAppState.mHasLocationPermission) {
		++countLocationPermissionEnabledProxyApps;
		}
		}
		@@ -403,10 +436,9 @@ class GnssVisibilityControl {
		int i = 0;
		String[] locationPermissionEnabledProxyApps =
		new String[countLocationPermissionEnabledProxyApps];
		for (Map.Entry<String, Boolean> entry : mProxyAppToLocationPermissions.entrySet()) {
		for (Map.Entry<String, ProxyAppState> entry : mProxyAppsState.entrySet()) {
		final String proxyApp = entry.getKey();
		final boolean hasLocationPermissionEnabled = entry.getValue();
		if (hasLocationPermissionEnabled) {
		if (entry.getValue().mHasLocationPermission) {
		locationPermissionEnabledProxyApps[i++] = proxyApp;
		}
		}
		@@ -422,12 +454,11 @@ class GnssVisibilityControl {
		}

		final String proxyAppPkgName = nfwNotification.mProxyAppPackageName;
		final Boolean isLocationPermissionEnabled = mProxyAppToLocationPermissions.get(
		proxyAppPkgName);
		final ProxyAppState proxyAppState = mProxyAppsState.get(proxyAppPkgName);
		final boolean isLocationRequestAccepted = nfwNotification.isRequestAccepted();
		final boolean isPermissionMismatched =
		(isLocationPermissionEnabled == null) ? isLocationRequestAccepted
		: (isLocationPermissionEnabled != isLocationRequestAccepted);
		(proxyAppState == null) ? isLocationRequestAccepted
		: (proxyAppState.mHasLocationPermission != isLocationRequestAccepted);
		logEvent(nfwNotification, isPermissionMismatched);

		if (!nfwNotification.isRequestAttributedToProxyApp()) {
		@@ -442,7 +473,7 @@ class GnssVisibilityControl {
		if (DEBUG) {
		Log.d(TAG, "Non-framework location request rejected. ProxyAppPackageName field"
		+ " is not set in the notification: " + nfwNotification + ". Number of"
		+ " configured proxy apps: " + mProxyAppToLocationPermissions.size());
		+ " configured proxy apps: " + mProxyAppsState.size());
		}
		return;
		}
		@@ -452,7 +483,7 @@ class GnssVisibilityControl {
		return;
		}

		if (isLocationPermissionEnabled == null) {
		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);
		@@ -467,18 +498,99 @@ class GnssVisibilityControl {
		return;
		}

		mAppOps.noteOpNoThrow(AppOpsManager.OP_FINE_LOCATION, proxyAppInfo.uid, proxyAppPkgName);
		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. Framework proxy app " + proxyAppPkgName
		+ " location permission is set to " + isLocationPermissionEnabled
		+ " location permission is set to " + proxyAppState.mHasLocationPermission
		+ " but GNSS non-framework location access response type is "
		+ nfwNotification.getResponseTypeAsString() + " for notification: "
		+ nfwNotification);
		}
		}

		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()) {