Merge "Revert "Use ApplicationInfo.isSignedWithPlatformKey()"" (1a09c2b6) · Commits · e / os / android_frameworks_base

packages/SettingsLib/src/com/android/settingslib/Utils.java

+30 −18

Original line number	Diff line number	Diff line
		@@ -10,6 +10,8 @@ import android.content.Intent;
		import android.content.pm.ApplicationInfo;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageManager;
		import android.content.pm.PackageManager.NameNotFoundException;
		import android.content.pm.Signature;
		import android.content.pm.UserInfo;
		import android.content.res.ColorStateList;
		import android.content.res.Resources;
		@@ -60,6 +62,7 @@ public class Utils {
		static final String STORAGE_MANAGER_ENABLED_PROPERTY =
		"ro.storage_manager.enabled";

		private static Signature[] sSystemSignature;
		private static String sPermissionControllerPackageName;
		private static String sServicesSystemSharedLibPackageName;
		private static String sSharedSystemSharedLibPackageName;
		@@ -370,22 +373,14 @@ public class Utils {
		return new ColorMatrixColorFilter(getAlphaInvariantColorMatrixForColor(color));
		}

		/**
		* @deprecated Use {@link #isSystemPackage(Resources, PackageManager, ApplicationInfo)} instead.
		*/
		@Deprecated
		public static boolean isSystemPackage(Resources resources, PackageManager pm, PackageInfo pkg) {
		return pkg.applicationInfo != null && isSystemPackage(resources, pm, pkg.applicationInfo);
		}

		/**
		* Determine whether a package is a "system package", in which case certain things (like
		* disabling notifications or disabling the package altogether) should be disallowed.
		*
		* Note: This function is just for UI treatment, and should not be used for security purposes.
		*/
		public static boolean isSystemPackage(
		Resources resources, PackageManager pm, @NonNull ApplicationInfo app) {
		public static boolean isSystemPackage(Resources resources, PackageManager pm, PackageInfo pkg) {
		if (sSystemSignature == null) {
		sSystemSignature = new Signature[]{getSystemSignature(pm)};
		}
		if (sPermissionControllerPackageName == null) {
		sPermissionControllerPackageName = pm.getPermissionControllerPackageName();
		}
		@@ -395,12 +390,29 @@ public class Utils {
		if (sSharedSystemSharedLibPackageName == null) {
		sSharedSystemSharedLibPackageName = pm.getSharedSystemSharedLibraryPackageName();
		}
		return app.isSignedWithPlatformKey()
		\|\| app.packageName.equals(sPermissionControllerPackageName)
		\|\| app.packageName.equals(sServicesSystemSharedLibPackageName)
		\|\| app.packageName.equals(sSharedSystemSharedLibPackageName)
		\|\| app.packageName.equals(PrintManager.PRINT_SPOOLER_PACKAGE_NAME)
		\|\| isDeviceProvisioningPackage(resources, app.packageName);
		return (sSystemSignature[0] != null
		&& sSystemSignature[0].equals(getFirstSignature(pkg)))
		\|\| pkg.packageName.equals(sPermissionControllerPackageName)
		\|\| pkg.packageName.equals(sServicesSystemSharedLibPackageName)
		\|\| pkg.packageName.equals(sSharedSystemSharedLibPackageName)
		\|\| pkg.packageName.equals(PrintManager.PRINT_SPOOLER_PACKAGE_NAME)
		\|\| isDeviceProvisioningPackage(resources, pkg.packageName);
		}

		private static Signature getFirstSignature(PackageInfo pkg) {
		if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) {
		return pkg.signatures[0];
		}
		return null;
		}

		private static Signature getSystemSignature(PackageManager pm) {
		try {
		final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES);
		return getFirstSignature(sys);
		} catch (NameNotFoundException e) {
		}
		return null;
		}

		/**