| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // 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. |
| |
| #endregion |
| |
| using System.Collections.Generic; |
| using System.Collections.ObjectModel; |
| |
| using Grpc.Core.Internal; |
| using Grpc.Core.Utils; |
| |
| namespace Grpc.Core |
| { |
| /// <summary> |
| /// Client-side call credentials. Provide authorization with per-call granularity. |
| /// </summary> |
| public abstract class CallCredentials |
| { |
| /// <summary> |
| /// Composes multiple multiple <c>CallCredentials</c> objects into |
| /// a single <c>CallCredentials</c> object. |
| /// </summary> |
| /// <param name="credentials">credentials to compose</param> |
| /// <returns>The new <c>CompositeCallCredentials</c></returns> |
| public static CallCredentials Compose(params CallCredentials[] credentials) |
| { |
| return new CompositeCallCredentials(credentials); |
| } |
| |
| /// <summary> |
| /// Creates a new instance of <c>CallCredentials</c> class from an |
| /// interceptor that can attach metadata to outgoing calls. |
| /// </summary> |
| /// <param name="interceptor">authentication interceptor</param> |
| public static CallCredentials FromInterceptor(AsyncAuthInterceptor interceptor) |
| { |
| return new AsyncAuthInterceptorCredentials(interceptor); |
| } |
| |
| /// <summary> |
| /// Populates this call credential instances. |
| /// You never need to invoke this, part of internal implementation. |
| /// </summary> |
| public abstract void InternalPopulateConfiguration(CallCredentialsConfiguratorBase configurator, object state); |
| |
| private class CompositeCallCredentials : CallCredentials |
| { |
| readonly IReadOnlyList<CallCredentials> credentials; |
| |
| public CompositeCallCredentials(CallCredentials[] credentials) |
| { |
| GrpcPreconditions.CheckArgument(credentials.Length >= 2, "Composite credentials object can only be created from 2 or more credentials."); |
| this.credentials = new List<CallCredentials>(credentials).AsReadOnly(); |
| } |
| |
| public override void InternalPopulateConfiguration(CallCredentialsConfiguratorBase configurator, object state) |
| { |
| configurator.SetCompositeCredentials(state, credentials); |
| } |
| } |
| |
| private class AsyncAuthInterceptorCredentials : CallCredentials |
| { |
| readonly AsyncAuthInterceptor interceptor; |
| |
| public AsyncAuthInterceptorCredentials(AsyncAuthInterceptor interceptor) |
| { |
| this.interceptor = GrpcPreconditions.CheckNotNull(interceptor); |
| } |
| |
| public override void InternalPopulateConfiguration(CallCredentialsConfiguratorBase configurator, object state) |
| { |
| configurator.SetAsyncAuthInterceptorCredentials(state, interceptor); |
| } |
| } |
| } |
| } |