| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.rolecontrollerservice; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.SystemApi; |
| import android.app.Service; |
| import android.app.role.IRoleManagerCallback; |
| import android.app.role.RoleManager; |
| import android.app.role.RoleManagerCallback; |
| import android.content.Intent; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| import com.android.internal.util.Preconditions; |
| |
| import java.util.concurrent.Executor; |
| |
| /** |
| * Abstract base class for the role controller service. |
| * <p> |
| * Subclass should implement the business logic for role management, including enforcing role |
| * requirements and granting or revoking relevant privileges of roles. This class can only be |
| * implemented by the permission controller app which is registered in {@code PackageManager}. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public abstract class RoleControllerService extends Service { |
| |
| private static final String LOG_TAG = RoleControllerService.class.getSimpleName(); |
| |
| /** |
| * The {@link Intent} that must be declared as handled by the service. The service should also |
| * require the {@link android.Manifest.permission#BIND_ROLE_CONTROLLER_SERVICE} permission so |
| * that other applications can not abuse it. |
| */ |
| public static final String SERVICE_INTERFACE = |
| "android.rolecontrollerservice.RoleControllerService"; |
| |
| @Nullable |
| @Override |
| public final IBinder onBind(@Nullable Intent intent) { |
| return new IRoleControllerService.Stub() { |
| |
| @Override |
| public void onAddRoleHolder(String roleName, String packageName, |
| IRoleManagerCallback callback) { |
| Preconditions.checkStringNotEmpty(roleName, "roleName cannot be null or empty"); |
| Preconditions.checkStringNotEmpty(packageName, |
| "packageName cannot be null or empty"); |
| Preconditions.checkNotNull(callback, "callback cannot be null"); |
| RoleControllerService.this.onAddRoleHolder(roleName, packageName, |
| new RoleManagerCallbackDelegate(callback)); |
| } |
| |
| @Override |
| public void onRemoveRoleHolder(String roleName, String packageName, |
| IRoleManagerCallback callback) { |
| Preconditions.checkStringNotEmpty(roleName, "roleName cannot be null or empty"); |
| Preconditions.checkStringNotEmpty(packageName, |
| "packageName cannot be null or empty"); |
| Preconditions.checkNotNull(callback, "callback cannot be null"); |
| RoleControllerService.this.onRemoveRoleHolder(roleName, packageName, |
| new RoleManagerCallbackDelegate(callback)); |
| } |
| |
| @Override |
| public void onClearRoleHolders(String roleName, IRoleManagerCallback callback) { |
| Preconditions.checkStringNotEmpty(roleName, "roleName cannot be null or empty"); |
| Preconditions.checkNotNull(callback, "callback cannot be null"); |
| RoleControllerService.this.onClearRoleHolders(roleName, |
| new RoleManagerCallbackDelegate(callback)); |
| } |
| }; |
| } |
| |
| /** |
| * Add a specific application to the holders of a role. If the role is exclusive, the previous |
| * holder will be replaced. |
| * <p> |
| * Implementation should enforce the role requirements and grant or revoke the relevant |
| * privileges of roles. |
| * |
| * @param roleName the name of the role to add the role holder for |
| * @param packageName the package name of the application to add to the role holders |
| * @param callback the callback for whether this call is successful |
| * |
| * @see RoleManager#addRoleHolderAsUser(String, String, UserHandle, Executor, |
| * RoleManagerCallback) |
| */ |
| public abstract void onAddRoleHolder(@NonNull String roleName, @NonNull String packageName, |
| @NonNull RoleManagerCallback callback); |
| |
| /** |
| * Remove a specific application from the holders of a role. |
| * |
| * @param roleName the name of the role to remove the role holder for |
| * @param packageName the package name of the application to remove from the role holders |
| * @param callback the callback for whether this call is successful |
| * |
| * @see RoleManager#removeRoleHolderAsUser(String, String, UserHandle, Executor, |
| * RoleManagerCallback) |
| */ |
| public abstract void onRemoveRoleHolder(@NonNull String roleName, @NonNull String packageName, |
| @NonNull RoleManagerCallback callback); |
| |
| /** |
| * Remove all holders of a role. |
| * |
| * @param roleName the name of the role to remove role holders for |
| * @param callback the callback for whether this call is successful |
| * |
| * @see RoleManager#clearRoleHoldersAsUser(String, UserHandle, Executor, RoleManagerCallback) |
| */ |
| public abstract void onClearRoleHolders(@NonNull String roleName, |
| @NonNull RoleManagerCallback callback); |
| |
| private static class RoleManagerCallbackDelegate implements RoleManagerCallback { |
| |
| private IRoleManagerCallback mCallback; |
| |
| RoleManagerCallbackDelegate(IRoleManagerCallback callback) { |
| mCallback = callback; |
| } |
| |
| @Override |
| public void onSuccess() { |
| try { |
| mCallback.onSuccess(); |
| } catch (RemoteException e) { |
| Log.e(LOG_TAG, "Error calling onSuccess() callback"); |
| } |
| } |
| |
| @Override |
| public void onFailure() { |
| try { |
| mCallback.onFailure(); |
| } catch (RemoteException e) { |
| Log.e(LOG_TAG, "Error calling onFailure() callback"); |
| } |
| } |
| } |
| } |