The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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73 lines
2.7 KiB
73 lines
2.7 KiB
#region Copyright notice and license |
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// Copyright 2015 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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#endregion |
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using System; |
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using System.Threading; |
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using System.Threading.Tasks; |
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using Google.Apis.Auth.OAuth2; |
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using Grpc.Core; |
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using Grpc.Core.Utils; |
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namespace Grpc.Auth |
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{ |
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/// <summary> |
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/// Factory methods to create authorization interceptors for Google credentials. |
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/// <seealso cref="GoogleGrpcCredentials"/> |
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/// </summary> |
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public static class GoogleAuthInterceptors |
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{ |
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private const string AuthorizationHeader = "Authorization"; |
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private const string Schema = "Bearer"; |
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/// <summary> |
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/// Creates an <see cref="AsyncAuthInterceptor"/> that will obtain access token from any credential type that implements |
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/// <c>ITokenAccess</c>. (e.g. <c>GoogleCredential</c>). |
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/// </summary> |
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/// <param name="credential">The credential to use to obtain access tokens.</param> |
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/// <returns>The interceptor.</returns> |
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public static AsyncAuthInterceptor FromCredential(ITokenAccess credential) |
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{ |
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return new AsyncAuthInterceptor(async (context, metadata) => |
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{ |
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var accessToken = await credential.GetAccessTokenForRequestAsync(context.ServiceUrl, CancellationToken.None).ConfigureAwait(false); |
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metadata.Add(CreateBearerTokenHeader(accessToken)); |
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}); |
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} |
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/// <summary> |
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/// Creates an <see cref="AsyncAuthInterceptor"/> that will use given access token as authorization. |
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/// </summary> |
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/// <param name="accessToken">OAuth2 access token.</param> |
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/// <returns>The interceptor.</returns> |
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public static AsyncAuthInterceptor FromAccessToken(string accessToken) |
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{ |
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GrpcPreconditions.CheckNotNull(accessToken); |
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return new AsyncAuthInterceptor((context, metadata) => |
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{ |
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metadata.Add(CreateBearerTokenHeader(accessToken)); |
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return TaskUtils.CompletedTask; |
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}); |
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} |
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private static Metadata.Entry CreateBearerTokenHeader(string accessToken) |
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{ |
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return new Metadata.Entry(AuthorizationHeader, Schema + " " + accessToken); |
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} |
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} |
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}
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