Merge "Whitelist all permission in apks on /system" into qt-dev (159b4c81) · Commits · e / os / android_packages_apps_PackageInstaller

src/com/android/packageinstaller/permission/service/RuntimePermissionsUpgradeController.java

+48 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import android.Manifest;
		import android.content.Context;
		import android.content.pm.PackageInfo;
		import android.content.pm.PackageManager;
		import android.content.pm.PermissionInfo;
		import android.permission.PermissionManager;
		import android.text.TextUtils;
		import android.util.Log;
		@@ -54,6 +55,8 @@ class RuntimePermissionsUpgradeController {
		PermissionManager.class);
		final int currentVersion = permissionManager.getRuntimePermissionsVersion();

		whitelistAllSystemAppPermissions(context);

		final int upgradedVersion = onUpgradeLocked(context, currentVersion);

		if (upgradedVersion != LATEST_VERSION) {
		@@ -69,6 +72,51 @@ class RuntimePermissionsUpgradeController {
		}
		}

		/**
		* Whitelist permissions of system-apps.
		*
		* <p>Apps that are updated via OTAs are never installed. Hence their permission are never
		* whitelisted. This code replaces that by always whitelisting them.
		*
		* @param context A context to talk to the platform
		*/
		private static void whitelistAllSystemAppPermissions(@NonNull Context context) {
		// Only whitelist permissions that are in the OTA. For non-OTA updates the installer should
		// do the white-listing
		final List<PackageInfo> apps = context.getPackageManager()
		.getInstalledPackages(PackageManager.GET_PERMISSIONS
		\| PackageManager.MATCH_UNINSTALLED_PACKAGES
		\| PackageManager.MATCH_FACTORY_ONLY);

		final int appCount = apps.size();
		for (int i = 0; i < appCount; i++) {
		final PackageInfo app = apps.get(i);

		if (app.requestedPermissions == null) {
		continue;
		}

		for (String requestedPermission : app.requestedPermissions) {
		final PermissionInfo permInfo;
		try {
		permInfo = context.getPackageManager().getPermissionInfo(
		requestedPermission, 0);
		} catch (PackageManager.NameNotFoundException e) {
		continue;
		}

		if ((permInfo.flags & (PermissionInfo.FLAG_HARD_RESTRICTED
		\| PermissionInfo.FLAG_SOFT_RESTRICTED)) == 0) {
		continue;
		}

		context.getPackageManager().addWhitelistedRestrictedPermission(
		app.packageName, requestedPermission,
		PackageManager.FLAG_PERMISSION_WHITELIST_UPGRADE);
		}
		}
		}

		/**
		* You must perform all necessary mutations to bring the runtime permissions
		* database from the old to the new version. When you add a new upgrade step