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/*
* Copyright (C) 2017 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.wifi;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.provider.Settings;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.messages.nano.SystemMessageProto.SystemMessage;
import com.android.internal.notification.SystemNotificationChannels;
import com.android.server.wifi.util.NativeUtil;
/**
* Responsible for notifying user for wrong password errors.
*/
public class WrongPasswordNotifier {
// Number of milliseconds to wait before automatically dismiss the notification.
private static final long CANCEL_TIMEOUT_MILLISECONDS = 5 * 60 * 1000;
// Unique ID associated with the notification.
@VisibleForTesting
public static final int NOTIFICATION_ID = SystemMessage.NOTE_WIFI_WRONG_PASSWORD;
// Flag indicating if a wrong password error is detected for the current connection.
private boolean mWrongPasswordDetected;
private final Context mContext;
private final NotificationManager mNotificationManager;
private final FrameworkFacade mFrameworkFacade;
public WrongPasswordNotifier(Context context, FrameworkFacade frameworkFacade) {
mContext = context;
mFrameworkFacade = frameworkFacade;
mNotificationManager =
(NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
}
/**
* Invoked when a wrong password error for a Wi-Fi network is detected.
*
* @param ssid The SSID of the Wi-Fi network
*/
public void onWrongPasswordError(String ssid) {
showNotification(ssid);
mWrongPasswordDetected = true;
}
/**
* Invoked when attempting a new Wi-Fi network connection.
*/
public void onNewConnectionAttempt() {
if (mWrongPasswordDetected) {
dismissNotification();
mWrongPasswordDetected = false;
}
}
/**
* Display wrong password notification for a given Wi-Fi network (specified by its SSID).
*
* @param ssid SSID of the Wi-FI network
*/
private void showNotification(String ssid) {
Intent intent = new Intent(Settings.ACTION_WIFI_SETTINGS);
intent.putExtra("wifi_start_connect_ssid", NativeUtil.removeEnclosingQuotes(ssid));
Notification.Builder builder = mFrameworkFacade.makeNotificationBuilder(mContext,
SystemNotificationChannels.NETWORK_ALERTS)
.setAutoCancel(true)
.setTimeoutAfter(CANCEL_TIMEOUT_MILLISECONDS)
// TODO(zqiu): consider creating a new icon.
.setSmallIcon(com.android.internal.R.drawable.stat_notify_wifi_in_range)
.setContentTitle(mContext.getString(
com.android.internal.R.string.wifi_available_title_failed_to_connect))
.setContentText(ssid)
.setContentIntent(mFrameworkFacade.getActivity(
mContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT))
.setColor(mContext.getResources().getColor(
com.android.internal.R.color.system_notification_accent_color));
mNotificationManager.notify(NOTIFICATION_ID, builder.build());
}
/**
* Dismiss the notification that was generated by {@link #showNotification}. The notification
* might have already been dismissed, either by user or timeout. We'll attempt to dismiss it
* regardless if it is been dismissed or not, to reduce code complexity.
*/
private void dismissNotification() {
// Notification might have already been dismissed, either by user or timeout. It is
// still okay to cancel it if already dismissed.
mNotificationManager.cancel(null, NOTIFICATION_ID);
}
}
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