Merge changes from topic 'aia_settings_overlay' into oc-dev (23691905) · Commits · e / os / android_frameworks_base

core/res/res/values/config.xml

+9 −0

Original line number	Diff line number	Diff line
		@@ -2863,4 +2863,13 @@

		<!-- The apps that need to be hidden when they are disabled -->
		<string-array name="config_hideWhenDisabled_packageNames"></string-array>

		<!-- Additional non-platform defined global settings exposed to Instant Apps -->
		<string-array name="config_allowedGlobalInstantAppSettings"></string-array>

		<!-- Additional non-platform defined system settings exposed to Instant Apps -->
		<string-array name="config_allowedSystemInstantAppSettings"></string-array>

		<!-- Additional non-platform defined secure settings exposed to Instant Apps -->
		<string-array name="config_allowedSecureInstantAppSettings"></string-array>
		</resources>

core/res/res/values/symbols.xml

+4 −0

Original line number	Diff line number	Diff line
		@@ -3003,4 +3003,8 @@
		<java-symbol type="string" name="config_feedbackIntentNameKey" />

		<java-symbol type="array" name="config_hideWhenDisabled_packageNames" />

		<java-symbol type="array" name="config_allowedGlobalInstantAppSettings" />
		<java-symbol type="array" name="config_allowedSystemInstantAppSettings" />
		<java-symbol type="array" name="config_allowedSecureInstantAppSettings" />
		</resources>

packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java

+48 −27

Original line number	Diff line number	Diff line
		@@ -35,6 +35,7 @@ import android.content.pm.PackageManager;
		import android.content.pm.ResolveInfo;
		import android.content.pm.ServiceInfo;
		import android.content.pm.UserInfo;
		import android.content.res.Resources;
		import android.database.Cursor;
		import android.database.MatrixCursor;
		import android.database.sqlite.SQLiteDatabase;
		@@ -185,6 +186,26 @@ public class SettingsProvider extends ContentProvider {
		private static final Bundle NULL_SETTING_BUNDLE = Bundle.forPair(
		Settings.NameValueTable.VALUE, null);

		// Overlay specified settings whitelisted for Instant Apps
		private static final Set<String> OVERLAY_ALLOWED_GLOBAL_INSTANT_APP_SETTINGS = new ArraySet<>();
		private static final Set<String> OVERLAY_ALLOWED_SYSTEM_INSTANT_APP_SETTINGS = new ArraySet<>();
		private static final Set<String> OVERLAY_ALLOWED_SECURE_INSTANT_APP_SETTINGS = new ArraySet<>();

		static {
		for (String name : Resources.getSystem().getStringArray(
		com.android.internal.R.array.config_allowedGlobalInstantAppSettings)) {
		OVERLAY_ALLOWED_GLOBAL_INSTANT_APP_SETTINGS.add(name);
		}
		for (String name : Resources.getSystem().getStringArray(
		com.android.internal.R.array.config_allowedSystemInstantAppSettings)) {
		OVERLAY_ALLOWED_SYSTEM_INSTANT_APP_SETTINGS.add(name);
		}
		for (String name : Resources.getSystem().getStringArray(
		com.android.internal.R.array.config_allowedSecureInstantAppSettings)) {
		OVERLAY_ALLOWED_SECURE_INSTANT_APP_SETTINGS.add(name);
		}
		}

		// Changes to these global settings are synchronously persisted
		private static final Set<String> CRITICAL_GLOBAL_SETTINGS = new ArraySet<>();
		static {
		@@ -898,14 +919,13 @@ public class SettingsProvider extends ContentProvider {
		Slog.v(LOG_TAG, "getGlobalSetting(" + name + ")");
		}

		// Ensure the caller can access the setting.
		enforceSettingReadable(name, SETTINGS_TYPE_GLOBAL, UserHandle.getCallingUserId());

		// Get the value.
		synchronized (mLock) {
		Setting setting = mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_GLOBAL,
		return mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_GLOBAL,
		UserHandle.USER_SYSTEM, name);
		// Ensure the caller can access the setting before we return it.
		enforceSettingReadable(setting, name, SETTINGS_TYPE_GLOBAL,
		UserHandle.getCallingUserId());
		return setting;
		}
		}

		@@ -1063,6 +1083,9 @@ public class SettingsProvider extends ContentProvider {
		// Resolve the userId on whose behalf the call is made.
		final int callingUserId = resolveCallingUserIdEnforcingPermissionsLocked(requestingUserId);

		// Ensure the caller can access the setting.
		enforceSettingReadable(name, SETTINGS_TYPE_SECURE, UserHandle.getCallingUserId());

		// Determine the owning user as some profile settings are cloned from the parent.
		final int owningUserId = resolveOwningUserIdForSecureSettingLocked(callingUserId, name);

		@@ -1076,7 +1099,6 @@ public class SettingsProvider extends ContentProvider {

		// As of Android O, the SSAID is read from an app-specific entry in table
		// SETTINGS_FILE_SSAID, unless accessed by a system process.
		// All apps are allowed to access their SSAID, so we skip the permission check.
		if (isNewSsaidSetting(name)) {
		PackageInfo callingPkg = getCallingPackageInfo(owningUserId);
		synchronized (mLock) {
		@@ -1086,12 +1108,8 @@ public class SettingsProvider extends ContentProvider {

		// Not the SSAID; do a straight lookup
		synchronized (mLock) {
		Setting setting = mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_SECURE,
		return mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_SECURE,
		owningUserId, name);
		// Ensure the caller can access the setting before we return it.
		enforceSettingReadable(setting, name, SETTINGS_TYPE_SECURE,
		UserHandle.getCallingUserId());
		return setting;
		}
		}

		@@ -1292,18 +1310,15 @@ public class SettingsProvider extends ContentProvider {
		// Resolve the userId on whose behalf the call is made.
		final int callingUserId = resolveCallingUserIdEnforcingPermissionsLocked(requestingUserId);

		// Ensure the caller can access the setting.
		enforceSettingReadable(name, SETTINGS_TYPE_SYSTEM, UserHandle.getCallingUserId());

		// Determine the owning user as some profile settings are cloned from the parent.
		final int owningUserId = resolveOwningUserIdForSystemSettingLocked(callingUserId, name);

		// Get the value.
		synchronized (mLock) {
		Setting setting = mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_SYSTEM,
		owningUserId, name);
		// Ensure the caller can access the setting before we return it.
		enforceSettingReadable(setting, name, SETTINGS_TYPE_SYSTEM,
		UserHandle.getCallingUserId());
		return setting;
		return mSettingsRegistry.getSettingLocked(SETTINGS_TYPE_SYSTEM, owningUserId, name);
		}
		}

		@@ -1635,6 +1650,19 @@ public class SettingsProvider extends ContentProvider {
		}
		}

		private Set<String> getOverlayInstantAppAccessibleSettings(int settingsType) {
		switch (settingsType) {
		case SETTINGS_TYPE_GLOBAL:
		return OVERLAY_ALLOWED_GLOBAL_INSTANT_APP_SETTINGS;
		case SETTINGS_TYPE_SYSTEM:
		return OVERLAY_ALLOWED_SYSTEM_INSTANT_APP_SETTINGS;
		case SETTINGS_TYPE_SECURE:
		return OVERLAY_ALLOWED_SECURE_INSTANT_APP_SETTINGS;
		default:
		throw new IllegalArgumentException("Invalid settings type: " + settingsType);
		}
		}

		private List<String> getSettingsNamesLocked(int settingsType, int userId) {
		boolean instantApp;
		if (UserHandle.getAppId(Binder.getCallingUid()) < Process.FIRST_APPLICATION_UID) {
		@@ -1650,23 +1678,16 @@ public class SettingsProvider extends ContentProvider {
		}
		}

		private void enforceSettingReadable(Setting setting, String settingName, int settingsType,
		int userId) {
		private void enforceSettingReadable(String settingName, int settingsType, int userId) {
		if (UserHandle.getAppId(Binder.getCallingUid()) < Process.FIRST_APPLICATION_UID) {
		return;
		}
		ApplicationInfo ai = getCallingApplicationInfoOrThrow();
		// Installed apps are allowed to read all settings.
		if (!ai.isInstantApp()) {
		return;
		}
		// Instant Apps are allowed to read settings defined by applications.
		// TODO: Replace this with an API that allows the setting application to say if a setting
		// shoud/shouldn't be accessible.
		if (!setting.isDefaultFromSystem()) {
		return;
		}
		if (!getInstantAppAccessibleSettings(settingsType).contains(settingName)) {
		if (!getInstantAppAccessibleSettings(settingsType).contains(settingName)
		&& !getOverlayInstantAppAccessibleSettings(settingsType).contains(settingName)) {
		throw new SecurityException("Setting " + settingName + " is not accessible from"
		+ " ephemeral package " + getCallingPackage());
		}