1 /* 2 * Copyright (C) 2015 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 android.car.content.pm; 18 19 import android.annotation.IntDef; 20 import android.annotation.SystemApi; 21 import android.car.CarApiUtil; 22 import android.car.CarManagerBase; 23 import android.car.CarNotConnectedException; 24 import android.content.Context; 25 import android.os.IBinder; 26 import android.os.Looper; 27 import android.os.RemoteException; 28 29 import java.lang.annotation.Retention; 30 import java.lang.annotation.RetentionPolicy; 31 32 /** 33 * Provides car specific API related with package management. 34 */ 35 public class CarPackageManager implements CarManagerBase { 36 37 /** 38 * Flag for {@link #setAppBlockingPolicy(String, CarAppBlockingPolicy, int)}. When this 39 * flag is set, the call will be blocked until policy is set to system. This can take time 40 * and the flag cannot be used in main thread. 41 * @hide 42 */ 43 @SystemApi 44 public static final int FLAG_SET_POLICY_WAIT_FOR_CHANGE = 0x1; 45 /** 46 * Flag for {@link #setAppBlockingPolicy(String, CarAppBlockingPolicy, int)}. When this 47 * flag is set, passed policy is added to existing policy set from the current package. 48 * If none of {@link #FLAG_SET_POLICY_ADD} or {@link #FLAG_SET_POLICY_REMOVE} is set, existing 49 * policy is replaced. Note that policy per each package is always replaced and will not be 50 * added. 51 * @hide 52 */ 53 @SystemApi 54 public static final int FLAG_SET_POLICY_ADD = 0x2; 55 /** 56 * Flag for {@link #setAppBlockingPolicy(String, CarAppBlockingPolicy, int)}. When this 57 * flag is set, passed policy is removed from existing policy set from the current package. 58 * If none of {@link #FLAG_SET_POLICY_ADD} or {@link #FLAG_SET_POLICY_REMOVE} is set, existing 59 * policy is replaced. 60 * @hide 61 */ 62 @SystemApi 63 public static final int FLAG_SET_POLICY_REMOVE = 0x4; 64 65 /** @hide */ 66 @IntDef(flag = true, 67 value = {FLAG_SET_POLICY_WAIT_FOR_CHANGE, FLAG_SET_POLICY_ADD, FLAG_SET_POLICY_REMOVE}) 68 @Retention(RetentionPolicy.SOURCE) 69 public @interface SetPolicyFlags {} 70 71 private final ICarPackageManager mService; 72 private final Context mContext; 73 74 /** @hide */ 75 public CarPackageManager(IBinder service, Context context) { 76 mService = ICarPackageManager.Stub.asInterface(service); 77 mContext = context; 78 } 79 80 /** @hide */ 81 @Override 82 public void onCarDisconnected() { 83 // nothing to do 84 } 85 86 /** 87 * Set Application blocking policy for system app. {@link #FLAG_SET_POLICY_ADD} or 88 * {@link #FLAG_SET_POLICY_REMOVE} flag allows adding or removing from already set policy. When 89 * none of these flags are set, it will completely replace existing policy for each package 90 * specified. 91 * When {@link #FLAG_SET_POLICY_WAIT_FOR_CHANGE} flag is set, this call will be blocked 92 * until the policy is set to system and become effective. Otherwise, the call will start 93 * changing the policy but it will be completed asynchronously and the call will return 94 * without waiting for system level policy change. 95 * 96 * @param packageName Package name of the client. If wrong package name is passed, exception 97 * will be thrown. This name is used to update the policy. 98 * @param policy 99 * @param flags 100 * @throws SecurityException if caller has no permission. 101 * @throws IllegalArgumentException For wrong or invalid arguments. 102 * @throws IllegalStateException If {@link #FLAG_SET_POLICY_WAIT_FOR_CHANGE} is set while 103 * called from main thread. 104 * @hide 105 */ 106 @SystemApi 107 public void setAppBlockingPolicy(String packageName, CarAppBlockingPolicy policy, 108 @SetPolicyFlags int flags) throws CarNotConnectedException, SecurityException, 109 IllegalArgumentException { 110 if ((flags & FLAG_SET_POLICY_WAIT_FOR_CHANGE) != 0 && 111 Looper.getMainLooper().isCurrentThread()) { 112 throw new IllegalStateException( 113 "FLAG_SET_POLICY_WAIT_FOR_CHANGE cannot be used in main thread"); 114 } 115 try { 116 mService.setAppBlockingPolicy(packageName, policy, flags); 117 } catch (IllegalStateException e) { 118 CarApiUtil.checkCarNotConnectedExceptionFromCarService(e); 119 } catch (RemoteException e) { 120 //ignore as CarApi will handle disconnection anyway. 121 } 122 } 123 124 /** 125 * Check if given activity is allowed while driving. 126 * @param packageName 127 * @param className 128 * @return 129 */ 130 public boolean isActivityAllowedWhileDriving(String packageName, String className) 131 throws CarNotConnectedException{ 132 try { 133 return mService.isActivityAllowedWhileDriving(packageName, className); 134 } catch (IllegalStateException e) { 135 CarApiUtil.checkCarNotConnectedExceptionFromCarService(e); 136 } catch (RemoteException e) { 137 //ignore as CarApi will handle disconnection anyway. 138 } 139 return false; 140 } 141 142 /** 143 * Check if given service is allowed while driving. 144 * @param packageName 145 * @param className 146 * @return 147 */ 148 public boolean isServiceAllowedWhileDriving(String packageName, String className) 149 throws CarNotConnectedException { 150 try { 151 return mService.isServiceAllowedWhileDriving(packageName, className); 152 } catch (IllegalStateException e) { 153 CarApiUtil.checkCarNotConnectedExceptionFromCarService(e); 154 } catch (RemoteException e) { 155 //ignore as CarApi will handle disconnection anyway. 156 } 157 return false; 158 } 159 } 160
