make work with out-of-band oauth2 token more pleasant

1 files changed, 0 insertions, 104 deletions

diff --git a/src/csharp/Grpc.Auth/OAuth2InterceptorFactory.cs b/src/csharp/Grpc.Auth/OAuth2InterceptorFactory.cs
deleted file mode 100644
index 420c4cb537..0000000000
--- a/src/csharp/Grpc.Auth/OAuth2InterceptorFactory.cs
+++ /dev/null
@@ -1,104 +0,0 @@
-#region Copyright notice and license
-
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
-using System.Security.Cryptography.X509Certificates;
-using System.Text.RegularExpressions;
-using System.Threading;
-using System.Threading.Tasks;
-
-using Google.Apis.Auth.OAuth2;
-using Google.Apis.Util;
-using Grpc.Core;
-using Grpc.Core.Utils;
-
-namespace Grpc.Auth
-{
-    public static class OAuth2InterceptorFactory
-    {
-        /// <summary>
-        /// Creates OAuth2 interceptor.
-        /// </summary>
-        public static MetadataInterceptorDelegate Create(GoogleCredential googleCredential)
-        {
-            var interceptor = new OAuth2Interceptor(googleCredential.InternalCredential, SystemClock.Default);
-            return new MetadataInterceptorDelegate(interceptor.InterceptHeaders);
-        }
-
-        /// <summary>
-        /// Injects OAuth2 authorization header into initial metadata (= request headers).
-        /// </summary>
-        private class OAuth2Interceptor
-        {
-            private const string AuthorizationHeader = "Authorization";
-            private const string Schema = "Bearer";
-
-            private ServiceCredential credential;
-            private IClock clock;
-
-            public OAuth2Interceptor(ServiceCredential credential, IClock clock)
-            {
-                this.credential = credential;
-                this.clock = clock;
-            }
-
-            /// <summary>
-            /// Gets access token and requests refreshing it if is going to expire soon.
-            /// </summary>
-            /// <param name="cancellationToken"></param>
-            /// <returns></returns>
-            public string GetAccessToken(CancellationToken cancellationToken)
-            {
-                if (credential.Token == null || credential.Token.IsExpired(clock))
-                {
-                    // TODO(jtattermusch): Parallel requests will spawn multiple requests to refresh the token once the token expires.
-                    // TODO(jtattermusch): Rethink synchronous wait to obtain the result.
-                    if (!credential.RequestAccessTokenAsync(cancellationToken).Result)
-                    {
-                        throw new InvalidOperationException("The access token has expired but we can't refresh it");
-                    }
-                }
-                return credential.Token.AccessToken;
-            }
-
-            public void InterceptHeaders(Metadata metadata)
-            {
-                var accessToken = GetAccessToken(CancellationToken.None);
-                metadata.Add(new Metadata.Entry(AuthorizationHeader, Schema + " " + accessToken));
-            }
-        }
-    }
-}