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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.settings.connectivity.util;
     18 
     19 import android.content.Context;
     20 import android.net.wifi.ScanResult;
     21 import android.net.wifi.WifiConfiguration;
     22 
     23 import com.android.settingslib.wifi.AccessPoint;
     24 import com.android.tv.settings.R;
     25 
     26 /**
     27  * Used to get different wifi security types.
     28  */
     29 public class WifiSecurityUtil {
     30     /**
     31      * Get security based on the {@link ScanResult}
     32      *
     33      * @param result {@link ScanResult}
     34      * @return the category of wifi security.
     35      */
     36     public static int getSecurity(ScanResult result) {
     37         if (result.capabilities.contains("WEP")) {
     38             return AccessPoint.SECURITY_WEP;
     39         } else if (result.capabilities.contains("PSK")) {
     40             return AccessPoint.SECURITY_PSK;
     41         } else if (result.capabilities.contains("EAP")) {
     42             return AccessPoint.SECURITY_EAP;
     43         }
     44         return AccessPoint.SECURITY_NONE;
     45     }
     46 
     47     /**
     48      * Get security based on {@link WifiConfiguration}
     49      *
     50      * @param config {@link WifiConfiguration}
     51      * @return the category of wifi security.
     52      */
     53     public static int getSecurity(WifiConfiguration config) {
     54         if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_PSK)) {
     55             return AccessPoint.SECURITY_PSK;
     56         }
     57         if (config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.WPA_EAP)
     58                 || config.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.IEEE8021X)) {
     59             return AccessPoint.SECURITY_EAP;
     60         }
     61         return (config.wepKeys[0] != null) ? AccessPoint.SECURITY_WEP : AccessPoint.SECURITY_NONE;
     62     }
     63 
     64     /**
     65      * Get the name of a specified wifi security.
     66      *
     67      * @param context      context of application.
     68      * @param wifiSecurity the value of wifiSecurity, defined in {@link AccessPoint}.
     69      * @return the name
     70      */
     71     public static String getName(Context context, int wifiSecurity) {
     72         switch (wifiSecurity) {
     73             case AccessPoint.SECURITY_WEP:
     74                 return context.getString(R.string.wifi_security_type_wep);
     75             case AccessPoint.SECURITY_PSK:
     76                 return context.getString(R.string.wifi_security_type_wpa);
     77             case AccessPoint.SECURITY_EAP:
     78                 return context.getString(R.string.wifi_security_type_eap);
     79             case AccessPoint.SECURITY_NONE:
     80                 return context.getString(R.string.wifi_security_type_none);
     81             default:
     82                 return null;
     83         }
     84     }
     85 
     86     /**
     87      * Return whether wifiSecurity is open.
     88      *
     89      * @param wifiSecurity the value of wifiSecurity. Defined in {@link AccessPoint}.
     90      * @return true if open.
     91      */
     92     public static boolean isOpen(int wifiSecurity) {
     93         return wifiSecurity == AccessPoint.SECURITY_NONE;
     94     }
     95 }
     96