1 /* 2 * Copyright (C) 2016 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; 18 19 import android.app.Activity; 20 import android.content.Intent; 21 import android.content.pm.PackageManager; 22 import android.net.ConnectivityManager; 23 import android.os.Bundle; 24 import android.os.ResultReceiver; 25 import android.os.UserHandle; 26 import android.util.Log; 27 28 /** 29 * Activity which acts as a proxy to the tether provisioning app for sanity checks and permission 30 * restrictions. Specifically, the provisioning apps require 31 * {@link android.permission.CONNECTIVITY_INTERNAL}, while this activity can be started by a caller 32 * with {@link android.permission.TETHER_PRIVILEGED}. 33 */ 34 public class TetherProvisioningActivity extends Activity { 35 private static final int PROVISION_REQUEST = 0; 36 private static final String TAG = "TetherProvisioningAct"; 37 private static final String EXTRA_TETHER_TYPE = "TETHER_TYPE"; 38 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 39 private ResultReceiver mResultReceiver; 40 41 @Override 42 public void onCreate(Bundle savedInstanceState) { 43 super.onCreate(savedInstanceState); 44 45 mResultReceiver = (ResultReceiver)getIntent().getParcelableExtra( 46 ConnectivityManager.EXTRA_PROVISION_CALLBACK); 47 48 int tetherType = getIntent().getIntExtra(ConnectivityManager.EXTRA_ADD_TETHER_TYPE, 49 ConnectivityManager.TETHERING_INVALID); 50 String[] provisionApp = getResources().getStringArray( 51 com.android.internal.R.array.config_mobile_hotspot_provision_app); 52 53 Intent intent = new Intent(Intent.ACTION_MAIN); 54 intent.setClassName(provisionApp[0], provisionApp[1]); 55 intent.putExtra(EXTRA_TETHER_TYPE, tetherType); 56 if (DEBUG) { 57 Log.d(TAG, "Starting provisioning app: " + provisionApp[0] + "." + provisionApp[1]); 58 } 59 60 if (getPackageManager().queryIntentActivities(intent, 61 PackageManager.MATCH_DEFAULT_ONLY).isEmpty()) { 62 Log.e(TAG, "Provisioning app is configured, but not available."); 63 mResultReceiver.send(ConnectivityManager.TETHER_ERROR_PROVISION_FAILED, null); 64 finish(); 65 return; 66 } 67 68 startActivityForResultAsUser(intent, PROVISION_REQUEST, UserHandle.CURRENT); 69 } 70 71 @Override 72 public void onActivityResult(int requestCode, int resultCode, Intent intent) { 73 super.onActivityResult(requestCode, resultCode, intent); 74 if (requestCode == PROVISION_REQUEST) { 75 if (DEBUG) Log.d(TAG, "Got result from app: " + resultCode); 76 int result = resultCode == Activity.RESULT_OK ? 77 ConnectivityManager.TETHER_ERROR_NO_ERROR : 78 ConnectivityManager.TETHER_ERROR_PROVISION_FAILED; 79 mResultReceiver.send(result, null); 80 finish(); 81 } 82 } 83 } 84
