911f7e7aa9
Android T allows apps to declare a runtime receiver as not exported by invoking registerReceiver with a new RECEIVER_NOT_EXPORTED flag; receivers registered with this flag will only receive broadcasts from the platform and the app itself. However to ensure developers can properly protect their receivers, all apps targeting T or later registering a receiver for non-system broadcasts must specify either the exported or not exported flag when invoking #registerReceiver; if one of these flags is not provided, the platform will throw a SecurityException. This commit updates all the exposed receivers with a new RECEIVER_EXPORTED_UNAUDITED flag to maintain the existing behavior of exporting the receiver while also flagging the receiver for audit before the T release. Bug: 161145287 Test: Build Change-Id: Ie97372efebd8258d9a4c503771d55109a85e6ae9
79 lines
2.5 KiB
Java
79 lines
2.5 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.nfc;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.nfc.NfcAdapter;
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/**
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* BaseNfcEnabler is a abstract helper to manage the Nfc state for Nfc and Android Beam
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* preference. It will receive intent and update state to ensure preference show correct state.
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*/
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public abstract class BaseNfcEnabler {
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protected final Context mContext;
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protected final NfcAdapter mNfcAdapter;
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private final IntentFilter mIntentFilter;
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private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if (NfcAdapter.ACTION_ADAPTER_STATE_CHANGED.equals(action)) {
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handleNfcStateChanged(intent.getIntExtra(NfcAdapter.EXTRA_ADAPTER_STATE,
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NfcAdapter.STATE_OFF));
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}
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}
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};
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public BaseNfcEnabler(Context context) {
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mContext = context;
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mNfcAdapter = NfcAdapter.getDefaultAdapter(context);
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if (!isNfcAvailable()) {
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// NFC is not supported
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mIntentFilter = null;
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return;
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}
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mIntentFilter = new IntentFilter(NfcAdapter.ACTION_ADAPTER_STATE_CHANGED);
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}
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public void resume() {
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if (!isNfcAvailable()) {
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return;
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}
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handleNfcStateChanged(mNfcAdapter.getAdapterState());
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mContext.registerReceiver(mReceiver, mIntentFilter,
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Context.RECEIVER_EXPORTED_UNAUDITED);
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}
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public void pause() {
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if (!isNfcAvailable()) {
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return;
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}
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mContext.unregisterReceiver(mReceiver);
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}
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public boolean isNfcAvailable() {
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return mNfcAdapter != null;
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}
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protected abstract void handleNfcStateChanged(int newState);
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}
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