#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;
using System.Threading;
using System.Threading.Tasks;
using Google.Apis.Auth.OAuth2;
using Grpc.Core;
using Grpc.Core.Utils;
namespace Grpc.Auth
{
///
/// Factory/extension methods to create instances of and classes
/// based on credential objects originating from Google auth library.
///
public static class GoogleGrpcCredentials
{
///
/// Retrieves an instance of Google's Application Default Credentials using
/// GoogleCredential.GetApplicationDefaultAsync() and converts them
/// into a gRPC that use the default SSL credentials.
///
/// The ChannelCredentials instance.
public static async Task GetApplicationDefaultAsync()
{
var googleCredential = await GoogleCredential.GetApplicationDefaultAsync().ConfigureAwait(false);
return googleCredential.ToChannelCredentials();
}
///
/// Creates an instance of that will use given access token to authenticate
/// with a gRPC service.
///
/// OAuth2 access token.
/// /// The MetadataCredentials instance.
public static CallCredentials FromAccessToken(string accessToken)
{
return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromAccessToken(accessToken));
}
///
/// Converts a ITokenAccess (e.g. GoogleCredential) object
/// into a gRPC object.
///
/// The credential to use to obtain access tokens.
/// The CallCredentials instance.
public static CallCredentials ToCallCredentials(this ITokenAccess credential)
{
return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromCredential(credential));
}
///
/// Converts a ITokenAccess (e.g. GoogleCredential) object
/// into a gRPC object.
/// Default SSL credentials are used.
///
/// The credential to use to obtain access tokens.
/// >The ChannelCredentials instance.
public static ChannelCredentials ToChannelCredentials(this ITokenAccess googleCredential)
{
return ChannelCredentials.Create(new SslCredentials(), googleCredential.ToCallCredentials());
}
}
}