Enable local DeviceConfig overriding from adb. (c4fff182) · Commits · e / os / android_frameworks_base

packages/SettingsProvider/Android.bp

+17 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@ android_app {
		"unsupportedappusage",
		],
		static_libs: [
		"device_config_service_flags_java",
		"junit",
		"SettingsLibDeviceStateRotationLock",
		"SettingsLibDisplayUtils",
		@@ -56,7 +57,10 @@ android_test {
		],
		static_libs: [
		"androidx.test.rules",
		"device_config_service_flags_java",
		"flag-junit",
		"mockito-target-minus-junit4",
		"platform-test-annotations",
		"SettingsLibDeviceStateRotationLock",
		"SettingsLibDisplayUtils",
		"platform-test-annotations",
		@@ -79,3 +83,16 @@ android_test {
		manifest: "test/AndroidManifest.xml",
		test_config: "test/AndroidTest.xml",
		}

		aconfig_declarations {
		name: "device_config_service_flags",
		package: "com.android.providers.settings",
		srcs: [
		"src/com/android/providers/settings/device_config_service.aconfig",
		],
		}

		java_aconfig_library {
		name: "device_config_service_flags_java",
		aconfig_declarations: "device_config_service_flags",
		}

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

+88 −15

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.providers.settings;
		import static android.provider.Settings.Config.SYNC_DISABLED_MODE_NONE;
		import static android.provider.Settings.Config.SYNC_DISABLED_MODE_PERSISTENT;
		import static android.provider.Settings.Config.SYNC_DISABLED_MODE_UNTIL_REBOOT;
		import static com.android.providers.settings.Flags.supportOverrides;

		import android.annotation.SuppressLint;
		import android.app.ActivityManager;
		@@ -42,10 +43,8 @@ import com.android.internal.util.FastPrintWriter;

		import java.io.File;
		import java.io.FileDescriptor;
		import java.io.FileInputStream;
		import java.io.FileNotFoundException;
		import java.io.FileOutputStream;
		import java.io.InputStream;
		import java.io.IOException;
		import java.io.PrintWriter;
		import java.lang.reflect.Field;
		@@ -69,6 +68,11 @@ public final class DeviceConfigService extends Binder {
		"/system_ext/etc/aconfig_flags.textproto",
		"/vendor/etc/aconfig_flags.textproto");

		private static final List<String> PRIVATE_NAMESPACES = List.of(
		"device_config_overrides",
		"staged",
		"token_staged");

		final SettingsProvider mProvider;

		public DeviceConfigService(SettingsProvider provider) {
		@@ -171,6 +175,8 @@ public final class DeviceConfigService extends Binder {
		enum CommandVerb {
		GET,
		PUT,
		OVERRIDE,
		CLEAR_OVERRIDE,
		DELETE,
		LIST,
		LIST_NAMESPACES,
		@@ -244,6 +250,10 @@ public final class DeviceConfigService extends Binder {
		verb = CommandVerb.GET;
		} else if ("put".equalsIgnoreCase(cmd)) {
		verb = CommandVerb.PUT;
		} else if (supportOverrides() && "override".equalsIgnoreCase(cmd)) {
		verb = CommandVerb.OVERRIDE;
		} else if (supportOverrides() && "clear_override".equalsIgnoreCase(cmd)) {
		verb = CommandVerb.CLEAR_OVERRIDE;
		} else if ("delete".equalsIgnoreCase(cmd)) {
		verb = CommandVerb.DELETE;
		} else if ("list".equalsIgnoreCase(cmd)) {
		@@ -330,7 +340,7 @@ public final class DeviceConfigService extends Binder {
		publicOnly = true;
		}
		} else if (namespace == null) {
		// GET, PUT, DELETE, LIST 1st arg
		// GET, PUT, OVERRIDE, DELETE, LIST 1st arg
		namespace = arg;
		if (verb == CommandVerb.LIST) {
		if (peekNextArg() == null) {
		@@ -342,9 +352,12 @@ public final class DeviceConfigService extends Binder {
		}
		}
		} else if (key == null) {
		// GET, PUT, DELETE 2nd arg
		// GET, PUT, OVERRIDE, DELETE 2nd arg
		key = arg;
		if ((verb == CommandVerb.GET \|\| verb == CommandVerb.DELETE)) {
		boolean validVerb = verb == CommandVerb.GET
		\|\| verb == CommandVerb.DELETE
		\|\| verb == CommandVerb.CLEAR_OVERRIDE;
		if (validVerb) {
		// GET, DELETE only have 2 args
		if (peekNextArg() == null) {
		isValid = true;
		@@ -355,9 +368,11 @@ public final class DeviceConfigService extends Binder {
		}
		}
		} else if (value == null) {
		// PUT 3rd arg (required)
		// PUT, OVERRIDE 3rd arg (required)
		value = arg;
		if (verb == CommandVerb.PUT && peekNextArg() == null) {
		boolean validVerb = verb == CommandVerb.PUT
		\|\| verb == CommandVerb.OVERRIDE;
		if (validVerb && peekNextArg() == null) {
		isValid = true;
		}
		} else if ("default".equalsIgnoreCase(arg)) {
		@@ -387,14 +402,71 @@ public final class DeviceConfigService extends Binder {
		case PUT:
		DeviceConfig.setProperty(namespace, key, value, makeDefault);
		break;
		case OVERRIDE:
		if (supportOverrides()) {
		DeviceConfig.setLocalOverride(namespace, key, value);
		}
		break;
		case CLEAR_OVERRIDE:
		if (supportOverrides()) {
		DeviceConfig.clearLocalOverride(namespace, key);
		}
		break;
		case DELETE:
		pout.println(delete(iprovider, namespace, key)
		? "Successfully deleted " + key + " from " + namespace
		: "Failed to delete " + key + " from " + namespace);
		break;
		case LIST:
		if (supportOverrides()) {
		pout.println("Server overrides:");

		Map<String, Map<String, String>> underlyingValues =
		DeviceConfig.getUnderlyingValuesForOverriddenFlags();

		if (namespace != null) {
		DeviceConfig.Properties properties =
		DeviceConfig.getProperties(namespace);
		List<String> keys = new ArrayList<>(properties.getKeyset());
		Collections.sort(keys);
		for (String name : keys) {
		String valueReadFromDeviceConfig = properties.getString(name, null);
		String underlyingValue = underlyingValues.get(namespace).get(name);
		String printValue = underlyingValue != null
		? underlyingValue
		: valueReadFromDeviceConfig;
		pout.println(name + "=" + printValue);
		}
		} else {
		for (String line : listAll(iprovider)) {
		boolean isPrivateNamespace = false;
		for (String privateNamespace : PRIVATE_NAMESPACES) {
		if (line.startsWith(privateNamespace)) {
		isPrivateNamespace = true;
		}
		}
		if (!isPrivateNamespace) {
		pout.println(line);
		}
		}
		}

		pout.println("");
		pout.println("Local overrides (these take precedence):");
		for (String overrideNamespace : underlyingValues.keySet()) {
		Map<String, String> flagToValue =
		underlyingValues.get(overrideNamespace);
		for (String flag : flagToValue.keySet()) {
		String flagText = overrideNamespace + "/" + flag;
		String valueText =
		DeviceConfig.getProperty(overrideNamespace, flag);
		pout.println(flagText + "=" + valueText);
		}
		}
		} else {
		if (namespace != null) {
		DeviceConfig.Properties properties = DeviceConfig.getProperties(namespace);
		DeviceConfig.Properties properties =
		DeviceConfig.getProperties(namespace);
		List<String> keys = new ArrayList<>(properties.getKeyset());
		Collections.sort(keys);
		for (String name : keys) {
		@@ -405,6 +477,7 @@ public final class DeviceConfigService extends Binder {
		pout.println(line);
		}
		}
		}
		break;
		case LIST_NAMESPACES:
		List<String> namespaces;

packages/SettingsProvider/src/com/android/providers/settings/device_config_service.aconfig

0 → 100644

+8 −0

Original line number	Diff line number	Diff line
		package: "com.android.providers.settings"

		flag {
		name: "support_overrides"
		namespace: "core_experiments_team_internal"
		description: "When enabled, allows setting and displaying local overrides via adb."
		bug: "b/298392357"
		}

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

+52 −0

Original line number	Diff line number	Diff line
		@@ -22,21 +22,30 @@ import static junit.framework.Assert.assertNull;

		import android.content.ContentResolver;
		import android.os.Bundle;
		import android.platform.test.annotations.RequiresFlagsDisabled;
		import android.platform.test.annotations.RequiresFlagsEnabled;
		import android.platform.test.flag.junit.CheckFlagsRule;
		import android.platform.test.flag.junit.DeviceFlagsValueProvider;
		import android.provider.Settings;

		import androidx.test.InstrumentationRegistry;
		import androidx.test.runner.AndroidJUnit4;

		import com.google.common.io.CharStreams;

		import libcore.io.Streams;

		import org.junit.After;
		import org.junit.Before;
		import org.junit.Rule;
		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.io.FileInputStream;
		import java.io.IOException;
		import java.io.InputStream;
		import java.io.InputStreamReader;
		import java.nio.charset.StandardCharsets;

		/**
		* Tests for {@link DeviceConfigService}.
		@@ -49,6 +58,10 @@ public class DeviceConfigServiceTest {

		private ContentResolver mContentResolver;

		@Rule
		public final CheckFlagsRule mCheckFlagsRule =
		DeviceFlagsValueProvider.createCheckFlagsRule();

		@Before
		public void setUp() {
		mContentResolver = InstrumentationRegistry.getContext().getContentResolver();
		@@ -59,6 +72,39 @@ public class DeviceConfigServiceTest {
		deleteFromContentProvider(mContentResolver, sNamespace, sKey);
		}

		/**
		* Test that setting overrides are properly disabled when the flag is off.
		*/
		@Test
		@RequiresFlagsDisabled("com.android.providers.settings.support_overrides")
		public void testOverrideDisabled() throws IOException {
		final String newValue = "value2";

		executeShellCommand("device_config put " + sNamespace + " " + sKey + " " + sValue);
		executeShellCommand("device_config override " + sNamespace + " " + sKey + " " + newValue);
		String result = readShellCommandOutput("device_config get " + sNamespace + " " + sKey);
		assertEquals(sValue + "\n", result);
		}

		/**
		* Test that overrides are readable and can be cleared.
		*/
		@Test
		@RequiresFlagsEnabled("com.android.providers.settings.support_overrides")
		public void testOverride() throws IOException {
		final String newValue = "value2";

		executeShellCommand("device_config put " + sNamespace + " " + sKey + " " + sValue);
		executeShellCommand("device_config override " + sNamespace + " " + sKey + " " + newValue);

		String result = readShellCommandOutput("device_config get " + sNamespace + " " + sKey);
		assertEquals(newValue + "\n", result);

		executeShellCommand("device_config clear_override " + sNamespace + " " + sKey);
		result = readShellCommandOutput("device_config get " + sNamespace + " " + sKey);
		assertEquals(sValue + "\n", result);
		}

		@Test
		public void testPut() throws Exception {
		final String newNamespace = "namespace2";
		@@ -165,6 +211,12 @@ public class DeviceConfigServiceTest {
		Streams.readFully(is);
		}

		private static String readShellCommandOutput(String command) throws IOException {
		InputStream is = new FileInputStream(InstrumentationRegistry.getInstrumentation()
		.getUiAutomation().executeShellCommand(command).getFileDescriptor());
		return CharStreams.toString(new InputStreamReader(is, StandardCharsets.UTF_8));
		}

		private static void putWithContentProvider(ContentResolver resolver, String namespace,
		String key, String value) {
		putWithContentProvider(resolver, namespace, key, value, false);