Intercepting activites that could cause lock task mode violation in ActivityStartInterceptor. (3c918591) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/app/BlockedAppActivity.java

0 → 100644

+86 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2020 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.internal.app;

		import android.content.Intent;
		import android.content.pm.ApplicationInfo;
		import android.content.pm.PackageManager;
		import android.os.Bundle;
		import android.text.TextUtils;
		import android.util.Slog;

		import com.android.internal.R;

		/**
		* A dialog shown to the user when they try to launch an app that is not allowed in lock task
		* mode. The intent to start this activity must be created with the static factory method provided
		* below.
		*/
		public class BlockedAppActivity extends AlertActivity {

		private static final String TAG = "BlockedAppActivity";
		private static final String PACKAGE_NAME = "com.android.internal.app";
		private static final String EXTRA_BLOCKED_PACKAGE = PACKAGE_NAME + ".extra.BLOCKED_PACKAGE";

		@Override
		protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		Intent intent = getIntent();
		int userId = intent.getIntExtra(Intent.EXTRA_USER_ID, /* defaultValue= */ -1);
		if (userId < 0) {
		Slog.wtf(TAG, "Invalid user: " + userId);
		finish();
		return;
		}

		String packageName = intent.getStringExtra(EXTRA_BLOCKED_PACKAGE);
		if (TextUtils.isEmpty(packageName)) {
		Slog.wtf(TAG, "Invalid package: " + packageName);
		finish();
		return;
		}

		CharSequence appLabel = getAppLabel(userId, packageName);

		mAlertParams.mTitle = getString(R.string.app_blocked_title);
		mAlertParams.mMessage = getString(R.string.app_blocked_message, appLabel);
		mAlertParams.mPositiveButtonText = getString(android.R.string.ok);
		setupAlert();
		}

		private CharSequence getAppLabel(int userId, String packageName) {
		PackageManager pm = getPackageManager();
		try {
		ApplicationInfo aInfo =
		pm.getApplicationInfoAsUser(packageName, /* flags= */ 0, userId);
		return aInfo.loadLabel(pm);
		} catch (PackageManager.NameNotFoundException ne) {
		Slog.e(TAG, "Package " + packageName + " not found", ne);
		}
		return packageName;
		}


		/** Creates an intent that launches {@link BlockedAppActivity}. */
		public static Intent createIntent(int userId, String packageName) {
		return new Intent()
		.setClassName("android", BlockedAppActivity.class.getName())
		.putExtra(Intent.EXTRA_USER_ID, userId)
		.putExtra(EXTRA_BLOCKED_PACKAGE, packageName);
		}
		}

core/res/AndroidManifest.xml

+6 −0

Original line number	Diff line number	Diff line
		@@ -4976,6 +4976,12 @@
		android:process=":ui">
		</activity>

		<activity android:name="com.android.internal.app.BlockedAppActivity"
		android:theme="@style/Theme.Dialog.Confirmation"
		android:excludeFromRecents="true"
		android:process=":ui">
		</activity>

		<activity android:name="com.android.settings.notification.NotificationAccessConfirmationActivity"
		android:theme="@style/Theme.Dialog.Confirmation"
		android:excludeFromRecents="true">

core/res/res/values/strings.xml

+7 −0

Original line number	Diff line number	Diff line
		@@ -4922,6 +4922,13 @@
		<!-- Title for button to turn on work profile. [CHAR LIMIT=NONE] -->
		<string name="work_mode_turn_on">Turn on</string>

		<!-- Title of the dialog that is shown when the user tries to launch a suspended application [CHAR LIMIT=50] -->
		<string name="app_blocked_title">App is not available</string>
		<!-- Default message shown in the dialog that is shown when the user tries to launch a suspended application [CHAR LIMIT=NONE] -->
		<string name="app_blocked_message">
		<xliff:g id="app_name" example="Gmail">%1$s</xliff:g> is not available right now.
		</string>

		<!-- Message displayed in dialog when app is too old to run on this verison of android. [CHAR LIMIT=NONE] -->
		<string name="deprecated_target_sdk_message">This app was built for an older version of Android and may not work properly. Try checking for updates, or contact the developer.</string>
		<!-- Title for button to see application detail in app store which it came from - it may allow user to update to newer version. [CHAR LIMIT=50] -->

core/res/res/values/symbols.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -3036,6 +3036,9 @@
		<java-symbol type="string" name="app_suspended_more_details" />
		<java-symbol type="string" name="app_suspended_default_message" />

		<java-symbol type="string" name="app_blocked_title" />
		<java-symbol type="string" name="app_blocked_message" />

		<!-- Used internally for assistant to launch activity transitions -->
		<java-symbol type="id" name="cross_task_transition" />

services/core/java/com/android/server/wm/ActivityRecord.java

+16 −9

Original line number	Diff line number	Diff line
		@@ -1633,12 +1633,7 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
		requestedVrComponent = (aInfo.requestedVrComponent == null) ?
		null : ComponentName.unflattenFromString(aInfo.requestedVrComponent);

		lockTaskLaunchMode = aInfo.lockTaskLaunchMode;
		if (info.applicationInfo.isPrivilegedApp()
		&& (lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_ALWAYS
		\|\| lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_NEVER)) {
		lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_DEFAULT;
		}
		lockTaskLaunchMode = getLockTaskLaunchMode(aInfo, options);

		if (options != null) {
		pendingOptions = options;
		@@ -1646,13 +1641,25 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
		if (usageReport != null) {
		appTimeTracker = new AppTimeTracker(usageReport);
		}
		final boolean useLockTask = pendingOptions.getLockTaskMode();
		// Gets launch display id from options. It returns INVALID_DISPLAY if not set.
		mHandoverLaunchDisplayId = options.getLaunchDisplayId();
		}
		}

		static int getLockTaskLaunchMode(ActivityInfo aInfo, @Nullable ActivityOptions options) {
		int lockTaskLaunchMode = aInfo.lockTaskLaunchMode;
		if (aInfo.applicationInfo.isPrivilegedApp()
		&& (lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_ALWAYS
		\|\| lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_NEVER)) {
		lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_DEFAULT;
		}
		if (options != null) {
		final boolean useLockTask = options.getLockTaskMode();
		if (useLockTask && lockTaskLaunchMode == LOCK_TASK_LAUNCH_MODE_DEFAULT) {
		lockTaskLaunchMode = LOCK_TASK_LAUNCH_MODE_IF_WHITELISTED;
		}
		// Gets launch display id from options. It returns INVALID_DISPLAY if not set.
		mHandoverLaunchDisplayId = options.getLaunchDisplayId();
		}
		return lockTaskLaunchMode;
		}

		@Override