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Commit b408e8ec authored by John Spurlock's avatar John Spurlock
Browse files

Move notification listener management into helper. 

Part of a larger effort to reuse service management code.  This is
mostly algebraic, simply move code related to listener management
into a new helper, and cut the backreference to NoMan.  Put
user-profile code into reusable inner helper, and common uid-checking
code into a new static util helper.

Resist the urge to rewrite / reformat, but replace HashSet with
ArraySet.

Bug:13743109
Change-Id: I59e0131f632c3bbf555b5276dc5092422113cdc3
parent 25a13518

services/core/java/com/android/server/notification/NotificationListeners.java

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+608 −0

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services/core/java/com/android/server/notification/NotificationManagerService.java

+78 −599

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services/core/java/com/android/server/notification/NotificationUtil.java

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Original line number Original line Diff line number Diff line 
/**

 * Copyright (c) 2014, 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.server.notification;



import android.app.AppGlobals;

import android.content.pm.ApplicationInfo;

import android.os.Binder;

import android.os.Process;

import android.os.RemoteException;

import android.os.UserHandle;



public class NotificationUtil {



    // Return true if the UID is a system or phone UID and therefore should not have

    // any notifications or toasts blocked.

    public static boolean isUidSystem(int uid) {

        final int appid = UserHandle.getAppId(uid);

        return (appid == Process.SYSTEM_UID || appid == Process.PHONE_UID || uid == 0);

    }



    // same as isUidSystem(int, int) for the Binder caller's UID.

    public static boolean isCallerSystem() {

        return isUidSystem(Binder.getCallingUid());

    }



    public static void checkCallerIsSystem() {

        if (isCallerSystem()) {

            return;

        }

        throw new SecurityException("Disallowed call for uid " + Binder.getCallingUid());

    }



    public static void checkCallerIsSystemOrSameApp(String pkg) {

        if (isCallerSystem()) {

            return;

        }

        final int uid = Binder.getCallingUid();

        try {

            ApplicationInfo ai = AppGlobals.getPackageManager().getApplicationInfo(

                    pkg, 0, UserHandle.getCallingUserId());

            if (!UserHandle.isSameApp(ai.uid, uid)) {

                throw new SecurityException("Calling uid " + uid + " gave package"

                        + pkg + " which is owned by uid " + ai.uid);

            }

        } catch (RemoteException re) {

            throw new SecurityException("Unknown package " + pkg + "\n" + re);

        }

    }

}