Attempt to repair the WebView pacakge in more cases (22f910d5) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/webkit/WebViewUpdateServiceImpl2.java

+41 −12

Original line number	Diff line number	Diff line
		@@ -96,6 +96,9 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		private boolean mWebViewPackageDirty = false;
		private boolean mAnyWebViewInstalled = false;

		// Keeps track of whether we attempted to repair WebView before.
		private boolean mAttemptedToRepairBefore = false;

		private static final int NUMBER_OF_RELROS_UNKNOWN = Integer.MAX_VALUE;

		// The WebView package currently in use (or the one we are preparing).
		@@ -136,6 +139,7 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		boolean removedOrChangedOldPackage = false;
		String oldProviderName = null;
		PackageInfo newPackage = null;
		boolean repairNeeded = false;
		synchronized (mLock) {
		try {
		newPackage = findPreferredWebViewPackage();
		@@ -161,6 +165,7 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		Slog.e(TAG, "Could not find valid WebView package to create relro with "
		+ e);
		}
		repairNeeded = shouldTriggerRepairLocked();
		}
		if (updateWebView && !removedOrChangedOldPackage
		&& oldProviderName != null) {
		@@ -170,12 +175,18 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		// only kills dependents of packages that are being removed.
		mSystemInterface.killPackageDependents(oldProviderName);
		}
		if (repairNeeded) {
		attemptRepair();
		}
		return;
		}
		}
		}

		private boolean shouldTriggerRepairLocked() {
		if (mAttemptedToRepairBefore) {
		return false;
		}
		if (mCurrentWebViewPackage == null) {
		return true;
		}
		@@ -189,6 +200,26 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		}
		}

		private void attemptRepair() {
		// We didn't find a valid WebView implementation. Try explicitly re-installing and
		// re-enabling the default package for all users in case it was disabled. If this actually
		// changes the state, we will see the PackageManager broadcast shortly and try again.
		synchronized (mLock) {
		if (mAttemptedToRepairBefore) {
		return;
		}
		mAttemptedToRepairBefore = true;
		}
		Slog.w(
		TAG,
		"No provider available for all users, trying to install and enable "
		+ mDefaultProvider.packageName);
		mSystemInterface.installExistingPackageForAllUsers(
		mContext, mDefaultProvider.packageName);
		mSystemInterface.enablePackageForAllUsers(
		mContext, mDefaultProvider.packageName, true);
		}

		@Override
		public void prepareWebViewInSystemServer() {
		try {
		@@ -211,18 +242,7 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		}

		if (repairNeeded) {
		// We didn't find a valid WebView implementation. Try explicitly re-installing and
		// re-enabling the default package for all users in case it was disabled, even if we
		// already did the one-time migration before. If this actually changes the state, we
		// will see the PackageManager broadcast shortly and try again.
		Slog.w(
		TAG,
		"No provider available for all users, trying to install and enable "
		+ mDefaultProvider.packageName);
		mSystemInterface.installExistingPackageForAllUsers(
		mContext, mDefaultProvider.packageName);
		mSystemInterface.enablePackageForAllUsers(
		mContext, mDefaultProvider.packageName, true);
		attemptRepair();
		}

		} catch (Throwable t) {
		@@ -332,6 +352,7 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		PackageInfo oldPackage = null;
		PackageInfo newPackage = null;
		boolean providerChanged = false;
		boolean repairNeeded = false;
		synchronized (mLock) {
		oldPackage = mCurrentWebViewPackage;

		@@ -354,11 +375,19 @@ class WebViewUpdateServiceImpl2 implements WebViewUpdateServiceInterface {
		if (providerChanged) {
		onWebViewProviderChanged(newPackage);
		}
		// Choosing another provider shouldn't break our state. Only check if repair
		// is needed if this function is called as a result of a user change.
		if (newProviderName == null) {
		repairNeeded = shouldTriggerRepairLocked();
		}
		}
		// Kill apps using the old provider only if we changed provider
		if (providerChanged && oldPackage != null) {
		mSystemInterface.killPackageDependents(oldPackage.packageName);
		}
		if (repairNeeded) {
		attemptRepair();
		}
		// Return the new provider, this is not necessarily the one we were asked to switch to,
		// but the persistent setting will now be pointing to the provider we were asked to
		// switch to anyway.

services/tests/servicestests/src/com/android/server/webkit/TestSystemImpl.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -96,6 +96,9 @@ public class TestSystemImpl implements SystemInterface {
		return;
		}
		PackageInfo packageInfo = userPackages.get(userId);
		if (packageInfo == null) {
		return;
		}
		packageInfo.applicationInfo.enabled = enable;
		setPackageInfoForUser(userId, packageInfo);
		}
		@@ -106,6 +109,9 @@ public class TestSystemImpl implements SystemInterface {
		return;
		}
		PackageInfo packageInfo = userPackages.get(userId);
		if (packageInfo == null) {
		return;
		}
		packageInfo.applicationInfo.flags \|= ApplicationInfo.FLAG_INSTALLED;
		packageInfo.applicationInfo.privateFlags &= (~ApplicationInfo.PRIVATE_FLAG_HIDDEN);
		setPackageInfoForUser(userId, packageInfo);

services/tests/servicestests/src/com/android/server/webkit/WebViewUpdateServiceTest.java

+63 −1

Original line number	Diff line number	Diff line
		@@ -1551,7 +1551,7 @@ public class WebViewUpdateServiceTest {

		@Test
		@RequiresFlagsEnabled("android.webkit.update_service_v2")
		public void testDefaultWebViewPackageInstalling() {
		public void testDefaultWebViewPackageInstallingDuringStartUp() {
		String testPackage = "testDefault";
		WebViewProviderInfo[] packages =
		new WebViewProviderInfo[] {
		@@ -1574,6 +1574,68 @@ public class WebViewUpdateServiceTest {
		Matchers.anyObject(), Mockito.eq(testPackage));
		}

		@Test
		@RequiresFlagsEnabled("android.webkit.update_service_v2")
		public void testDefaultWebViewPackageInstallingAfterStartUp() {
		String testPackage = "testDefault";
		WebViewProviderInfo[] packages =
		new WebViewProviderInfo[] {
		new WebViewProviderInfo(
		testPackage,
		"",
		true /* default available */,
		false /* fallback */,
		null)
		};
		checkCertainPackageUsedAfterWebViewBootPreparation(testPackage, packages);

		// uninstall the default package.
		mTestSystemImpl.setPackageInfo(
		createPackageInfo(
		testPackage, true /* enabled /, true / valid /, false / installed */));
		mWebViewUpdateServiceImpl.packageStateChanged(testPackage,
		WebViewUpdateService.PACKAGE_REMOVED, 0);

		// Check that we try to re-install the default package.
		Mockito.verify(mTestSystemImpl)
		.installExistingPackageForAllUsers(
		Matchers.anyObject(), Mockito.eq(testPackage));
		}

		/**
		* Ensures that adding a new user for which the current WebView package is uninstalled triggers
		* the repair logic.
		*/
		@Test
		@RequiresFlagsEnabled("android.webkit.update_service_v2")
		public void testAddingNewUserWithDefaultdPackageNotInstalled() {
		String testPackage = "testDefault";
		WebViewProviderInfo[] packages =
		new WebViewProviderInfo[] {
		new WebViewProviderInfo(
		testPackage,
		"",
		true /* default available */,
		false /* fallback */,
		null)
		};
		checkCertainPackageUsedAfterWebViewBootPreparation(testPackage, packages);

		// Add new user with the default package not installed.
		int newUser = 100;
		mTestSystemImpl.addUser(newUser);
		mTestSystemImpl.setPackageInfoForUser(newUser,
		createPackageInfo(testPackage, true /* enabled /, true / valid */,
		false /* installed */));

		mWebViewUpdateServiceImpl.handleNewUser(newUser);

		// Check that we try to re-install the default package for all users.
		Mockito.verify(mTestSystemImpl)
		.installExistingPackageForAllUsers(
		Matchers.anyObject(), Mockito.eq(testPackage));
		}

		private void testDefaultPackageChosen(PackageInfo packageInfo) {
		WebViewProviderInfo[] packages =
		new WebViewProviderInfo[] {