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.settings.development; 18 19 import android.content.Context; 20 import android.hardware.usb.IUsbManager; 21 import android.os.RemoteException; 22 import android.os.ServiceManager; 23 import android.os.SystemProperties; 24 import android.os.UserManager; 25 import android.support.annotation.VisibleForTesting; 26 import android.support.v7.preference.Preference; 27 import android.support.v7.preference.PreferenceScreen; 28 import android.text.TextUtils; 29 import android.util.Log; 30 31 import com.android.settings.Utils; 32 import com.android.settings.core.PreferenceControllerMixin; 33 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 34 35 public class ClearAdbKeysPreferenceController extends DeveloperOptionsPreferenceController 36 implements PreferenceControllerMixin { 37 38 private static final String TAG = "ClearAdbPrefCtrl"; 39 private static final String CLEAR_ADB_KEYS = "clear_adb_keys"; 40 41 @VisibleForTesting 42 static final String RO_ADB_SECURE_PROPERTY_KEY = "ro.adb.secure"; 43 44 private final IUsbManager mUsbManager; 45 private final DevelopmentSettingsDashboardFragment mFragment; 46 ClearAdbKeysPreferenceController(Context context, DevelopmentSettingsDashboardFragment fragment)47 public ClearAdbKeysPreferenceController(Context context, 48 DevelopmentSettingsDashboardFragment fragment) { 49 super(context); 50 51 mFragment = fragment; 52 mUsbManager = IUsbManager.Stub.asInterface(ServiceManager.getService(Context.USB_SERVICE)); 53 } 54 55 @Override isAvailable()56 public boolean isAvailable() { 57 return SystemProperties.getBoolean(RO_ADB_SECURE_PROPERTY_KEY, false /* default */); 58 } 59 60 @Override getPreferenceKey()61 public String getPreferenceKey() { 62 return CLEAR_ADB_KEYS; 63 } 64 65 @Override displayPreference(PreferenceScreen screen)66 public void displayPreference(PreferenceScreen screen) { 67 super.displayPreference(screen); 68 69 if (mPreference != null && !isAdminUser()) { 70 mPreference.setEnabled(false); 71 } 72 } 73 74 @Override handlePreferenceTreeClick(Preference preference)75 public boolean handlePreferenceTreeClick(Preference preference) { 76 if (Utils.isMonkeyRunning()) { 77 return false; 78 } 79 80 if (TextUtils.equals(preference.getKey(), getPreferenceKey())) { 81 ClearAdbKeysWarningDialog.show(mFragment); 82 return true; 83 } 84 return false; 85 } 86 87 @Override onDeveloperOptionsSwitchEnabled()88 protected void onDeveloperOptionsSwitchEnabled() { 89 if (isAdminUser()) { 90 mPreference.setEnabled(true); 91 } 92 } 93 onClearAdbKeysConfirmed()94 public void onClearAdbKeysConfirmed() { 95 try { 96 mUsbManager.clearUsbDebuggingKeys(); 97 } catch (RemoteException e) { 98 Log.e(TAG, "Unable to clear adb keys", e); 99 } 100 } 101 102 @VisibleForTesting isAdminUser()103 boolean isAdminUser() { 104 return ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).isAdminUser(); 105 } 106 } 107