Jan Tattermusch | 18729a0 | 2015-10-08 18:40:00 -0700 | [diff] [blame] | 1 | #region Copyright notice and license |
| 2 | |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 3 | // Copyright 2015 gRPC authors. |
Jan Tattermusch | 18729a0 | 2015-10-08 18:40:00 -0700 | [diff] [blame] | 4 | // |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 5 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | // you may not use this file except in compliance with the License. |
| 7 | // You may obtain a copy of the License at |
Jan Tattermusch | 18729a0 | 2015-10-08 18:40:00 -0700 | [diff] [blame] | 8 | // |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 9 | // http://www.apache.org/licenses/LICENSE-2.0 |
Jan Tattermusch | 18729a0 | 2015-10-08 18:40:00 -0700 | [diff] [blame] | 10 | // |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 11 | // Unless required by applicable law or agreed to in writing, software |
| 12 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | // See the License for the specific language governing permissions and |
| 15 | // limitations under the License. |
Jan Tattermusch | 18729a0 | 2015-10-08 18:40:00 -0700 | [diff] [blame] | 16 | |
| 17 | #endregion |
| 18 | |
| 19 | using System; |
| 20 | using System.Threading; |
| 21 | using System.Threading.Tasks; |
| 22 | |
| 23 | using Google.Apis.Auth.OAuth2; |
| 24 | using Grpc.Core; |
| 25 | using Grpc.Core.Utils; |
| 26 | |
| 27 | namespace Grpc.Auth |
| 28 | { |
| 29 | /// <summary> |
| 30 | /// Factory/extension methods to create instances of <see cref="ChannelCredentials"/> and <see cref="CallCredentials"/> classes |
| 31 | /// based on credential objects originating from Google auth library. |
| 32 | /// </summary> |
| 33 | public static class GoogleGrpcCredentials |
| 34 | { |
| 35 | /// <summary> |
| 36 | /// Retrieves an instance of Google's Application Default Credentials using |
| 37 | /// <c>GoogleCredential.GetApplicationDefaultAsync()</c> and converts them |
| 38 | /// into a gRPC <see cref="ChannelCredentials"/> that use the default SSL credentials. |
| 39 | /// </summary> |
| 40 | /// <returns>The <c>ChannelCredentials</c> instance.</returns> |
| 41 | public static async Task<ChannelCredentials> GetApplicationDefaultAsync() |
| 42 | { |
| 43 | var googleCredential = await GoogleCredential.GetApplicationDefaultAsync().ConfigureAwait(false); |
| 44 | return googleCredential.ToChannelCredentials(); |
| 45 | } |
| 46 | |
| 47 | /// <summary> |
| 48 | /// Creates an instance of <see cref="CallCredentials"/> that will use given access token to authenticate |
| 49 | /// with a gRPC service. |
| 50 | /// </summary> |
| 51 | /// <param name="accessToken">OAuth2 access token.</param> |
| 52 | /// /// <returns>The <c>MetadataCredentials</c> instance.</returns> |
| 53 | public static CallCredentials FromAccessToken(string accessToken) |
| 54 | { |
| 55 | return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromAccessToken(accessToken)); |
| 56 | } |
| 57 | |
| 58 | /// <summary> |
| 59 | /// Converts a <c>ITokenAccess</c> (e.g. <c>GoogleCredential</c>) object |
| 60 | /// into a gRPC <see cref="CallCredentials"/> object. |
| 61 | /// </summary> |
| 62 | /// <param name="credential">The credential to use to obtain access tokens.</param> |
| 63 | /// <returns>The <c>CallCredentials</c> instance.</returns> |
| 64 | public static CallCredentials ToCallCredentials(this ITokenAccess credential) |
| 65 | { |
| 66 | return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromCredential(credential)); |
| 67 | } |
| 68 | |
| 69 | /// <summary> |
| 70 | /// Converts a <c>ITokenAccess</c> (e.g. <c>GoogleCredential</c>) object |
| 71 | /// into a gRPC <see cref="ChannelCredentials"/> object. |
| 72 | /// Default SSL credentials are used. |
| 73 | /// </summary> |
| 74 | /// <param name="googleCredential">The credential to use to obtain access tokens.</param> |
| 75 | /// <returns>>The <c>ChannelCredentials</c> instance.</returns> |
| 76 | public static ChannelCredentials ToChannelCredentials(this ITokenAccess googleCredential) |
| 77 | { |
| 78 | return ChannelCredentials.Create(new SslCredentials(), googleCredential.ToCallCredentials()); |
| 79 | } |
| 80 | } |
| 81 | } |