Home | History | Annotate | Download | only in wifi 
      1 /*
      2  * Copyright (C) 2018 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.settings.wifi;
     18 
     19 import android.Manifest;
     20 import android.app.AppOpsManager;
     21 import android.content.Context;
     22 
     23 import com.android.internal.util.ArrayUtils;
     24 import com.android.settings.applications.AppStateAppOpsBridge;
     25 import com.android.settings.applications.AppStateAppOpsBridge.PermissionState;
     26 import com.android.settingslib.applications.ApplicationsState;
     27 import com.android.settingslib.applications.ApplicationsState.AppEntry;
     28 import com.android.settingslib.applications.ApplicationsState.AppFilter;
     29 
     30 import java.util.List;
     31 /*
     32  * Connects info of apps that change wifi state to the ApplicationsState. Wraps around the generic
     33  * AppStateAppOpsBridge class to tailor to the semantics of CHANGE_WIFI_STATE. Also provides app
     34  * filters that can use the info.
     35  */
     36 public class AppStateChangeWifiStateBridge extends AppStateAppOpsBridge {
     37 
     38     private static final String TAG = "AppStateChangeWifiStateBridge";
     39     private static final int APP_OPS_OP_CODE = AppOpsManager.OP_CHANGE_WIFI_STATE;
     40     private static final String PM_CHANGE_WIFI_STATE = Manifest.permission.CHANGE_WIFI_STATE;
     41     private static final String PM_NETWORK_SETTINGS = Manifest.permission.NETWORK_SETTINGS;
     42 
     43     private static final String[] PM_PERMISSIONS = {
     44             PM_CHANGE_WIFI_STATE
     45     };
     46 
     47     public AppStateChangeWifiStateBridge(Context context, ApplicationsState appState, Callback
     48             callback) {
     49         super(context, appState, callback, APP_OPS_OP_CODE, PM_PERMISSIONS);
     50     }
     51 
     52     @Override
     53     protected void updateExtraInfo(AppEntry app, String pkg, int uid) {
     54         app.extraInfo = getWifiSettingsInfo(pkg, uid);
     55     }
     56 
     57     @Override
     58     protected void loadAllExtraInfo() {
     59         final List<AppEntry> allApps = mAppSession.getAllApps();
     60         for (AppEntry entry : allApps) {
     61             updateExtraInfo(entry, entry.info.packageName, entry.info.uid);
     62         }
     63     }
     64 
     65     public WifiSettingsState getWifiSettingsInfo(String pkg, int uid) {
     66         PermissionState permissionState = super.getPermissionInfo(pkg, uid);
     67         return new WifiSettingsState(permissionState);
     68     }
     69 
     70     public static class WifiSettingsState extends AppStateAppOpsBridge.PermissionState {
     71         public WifiSettingsState(PermissionState permissionState) {
     72             super(permissionState.packageName, permissionState.userHandle);
     73             this.packageInfo = permissionState.packageInfo;
     74             this.appOpMode = permissionState.appOpMode;
     75             this.permissionDeclared = permissionState.permissionDeclared;
     76             this.staticPermissionGranted = permissionState.staticPermissionGranted;
     77         }
     78     }
     79 
     80     public static final AppFilter FILTER_CHANGE_WIFI_STATE = new AppFilter() {
     81         @Override
     82         public void init() {
     83         }
     84 
     85         @Override
     86         public boolean filterApp(AppEntry info) {
     87             if (info == null || info.extraInfo == null) {
     88                 return false;
     89             }
     90             WifiSettingsState wifiSettingsState = (WifiSettingsState) info.extraInfo;
     91             if (wifiSettingsState.packageInfo != null) {
     92                 final String[] requestedPermissions
     93                         = wifiSettingsState.packageInfo.requestedPermissions;
     94                 if (ArrayUtils.contains(requestedPermissions, PM_NETWORK_SETTINGS)) {
     95                     /*
     96                      * NETWORK_SETTINGS permission trumps CHANGE_WIFI_CONFIG, so remove this from
     97                      * the list.
     98                     */
     99                     return false;
    100                 }
    101             }
    102             return wifiSettingsState.permissionDeclared;
    103         }
    104     };
    105 }
    106