Merge "Check if APK paths are valid right before creating the context." into sc-v2-dev (cff5e325) · Commits · e / os / android_frameworks_base

core/java/android/app/LoadedApk.java

+34 −0

Original line number	Diff line number	Diff line
		@@ -2134,4 +2134,38 @@ public final class LoadedApk {
		final IBinder mService;
		}
		}

		/**
		* Check if the Apk paths in the cache are correct, and update them if they are not.
		* @hide
		*/
		public static void checkAndUpdateApkPaths(ApplicationInfo expectedAppInfo) {
		// Get the LoadedApk from the cache
		ActivityThread activityThread = ActivityThread.currentActivityThread();
		if (activityThread == null) {
		Log.e(TAG, "Cannot find activity thread");
		return;
		}
		checkAndUpdateApkPaths(activityThread, expectedAppInfo, /* cacheWithCode */ true);
		checkAndUpdateApkPaths(activityThread, expectedAppInfo, /* cacheWithCode */ false);
		}

		private static void checkAndUpdateApkPaths(ActivityThread activityThread,
		ApplicationInfo expectedAppInfo, boolean cacheWithCode) {
		String expectedCodePath = expectedAppInfo.getCodePath();
		LoadedApk loadedApk = activityThread.peekPackageInfo(
		expectedAppInfo.packageName, /* includeCode= */ cacheWithCode);
		// If there is load apk cached, or if the cache is valid, don't do anything.
		if (loadedApk == null \|\| loadedApk.getApplicationInfo() == null
		\|\| loadedApk.getApplicationInfo().getCodePath().equals(expectedCodePath)) {
		return;
		}
		// Duplicate framework logic
		List<String> oldPaths = new ArrayList<>();
		LoadedApk.makePaths(activityThread, expectedAppInfo, oldPaths);

		// Force update the LoadedApk instance, which should update the reference in the cache
		loadedApk.updateApplicationInfo(expectedAppInfo, oldPaths);
		}

		}

core/java/android/appwidget/AppWidgetHostView.java

+7 −4

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.app.Activity;
		import android.app.ActivityOptions;
		import android.app.LoadedApk;
		import android.compat.annotation.UnsupportedAppUsage;
		import android.content.ComponentName;
		import android.content.Context;
		@@ -554,7 +555,7 @@ public class AppWidgetHostView extends FrameLayout {
		}
		// Prepare a local reference to the remote Context so we're ready to
		// inflate any requested LayoutParams.
		mRemoteContext = getRemoteContext();
		mRemoteContext = getRemoteContextEnsuringCorrectCachedApkPath();

		int layoutId = rvToApply.getLayoutId();
		if (rvToApply.canRecycleView(mView)) {
		@@ -616,7 +617,7 @@ public class AppWidgetHostView extends FrameLayout {
		private void inflateAsync(@NonNull RemoteViews remoteViews) {
		// Prepare a local reference to the remote Context so we're ready to
		// inflate any requested LayoutParams.
		mRemoteContext = getRemoteContext();
		mRemoteContext = getRemoteContextEnsuringCorrectCachedApkPath();
		int layoutId = remoteViews.getLayoutId();

		if (mLastExecutionSignal != null) {
		@@ -718,8 +719,10 @@ public class AppWidgetHostView extends FrameLayout {
		* purposes of reading remote resources.
		* @hide
		*/
		protected Context getRemoteContext() {
		protected Context getRemoteContextEnsuringCorrectCachedApkPath() {
		try {
		ApplicationInfo expectedAppInfo = mInfo.providerInfo.applicationInfo;
		LoadedApk.checkAndUpdateApkPaths(expectedAppInfo);
		// Return if cloned successfully, otherwise default
		Context newContext = mContext.createApplicationContext(
		mInfo.providerInfo.applicationInfo,
		@@ -765,7 +768,7 @@ public class AppWidgetHostView extends FrameLayout {

		try {
		if (mInfo != null) {
		Context theirContext = getRemoteContext();
		Context theirContext = getRemoteContextEnsuringCorrectCachedApkPath();
		mRemoteContext = theirContext;
		LayoutInflater inflater = (LayoutInflater)
		theirContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

core/java/android/widget/RemoteViews.java

+5 −2

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ import android.app.Activity;
		import android.app.ActivityOptions;
		import android.app.ActivityThread;
		import android.app.Application;
		import android.app.LoadedApk;
		import android.app.PendingIntent;
		import android.app.RemoteInput;
		import android.appwidget.AppWidgetHostView;
		@@ -5475,7 +5476,8 @@ public class RemoteViews implements Parcelable, Filter {
		// user. So build a context that loads resources from that user but
		// still returns the current users userId so settings like data / time formats
		// are loaded without requiring cross user persmissions.
		final Context contextForResources = getContextForResources(context);
		final Context contextForResources =
		getContextForResourcesEnsuringCorrectCachedApkPaths(context);
		if (colorResources != null) {
		colorResources.apply(contextForResources);
		}
		@@ -5853,13 +5855,14 @@ public class RemoteViews implements Parcelable, Filter {
		}
		}

		private Context getContextForResources(Context context) {
		private Context getContextForResourcesEnsuringCorrectCachedApkPaths(Context context) {
		if (mApplication != null) {
		if (context.getUserId() == UserHandle.getUserId(mApplication.uid)
		&& context.getPackageName().equals(mApplication.packageName)) {
		return context;
		}
		try {
		LoadedApk.checkAndUpdateApkPaths(mApplication);
		return context.createApplicationContext(mApplication,
		Context.CONTEXT_RESTRICTED);
		} catch (NameNotFoundException e) {

core/java/android/widget/RemoteViewsAdapter.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -408,7 +408,7 @@ public class RemoteViewsAdapter extends BaseAdapter implements Handler.Callback
		}

		@Override
		protected Context getRemoteContext() {
		protected Context getRemoteContextEnsuringCorrectCachedApkPath() {
		return null;
		}