| #region Copyright notice and license |
| |
| // Copyright 2017 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.Collections.Generic; |
| using System.Runtime.InteropServices; |
| using System.Text; |
| using Grpc.Core; |
| using Grpc.Core.Utils; |
| |
| namespace Grpc.Core.Internal |
| { |
| /// <summary> |
| /// grpc_auth_context |
| /// </summary> |
| internal class AuthContextSafeHandle : SafeHandleZeroIsInvalid |
| { |
| static readonly NativeMethods Native = NativeMethods.Get(); |
| |
| private AuthContextSafeHandle() |
| { |
| } |
| |
| /// <summary> |
| /// Copies contents of the native auth context into a new <c>AuthContext</c> instance. |
| /// </summary> |
| public AuthContext ToAuthContext() |
| { |
| if (IsInvalid) |
| { |
| return new AuthContext(null, new Dictionary<string, List<AuthProperty>>()); |
| } |
| |
| var peerIdentityPropertyName = Marshal.PtrToStringAnsi(Native.grpcsharp_auth_context_peer_identity_property_name(this)); |
| |
| var propertiesDict = new Dictionary<string, List<AuthProperty>>(); |
| |
| var it = Native.grpcsharp_auth_context_property_iterator(this); |
| IntPtr authPropertyPtr = IntPtr.Zero; |
| while ((authPropertyPtr = Native.grpcsharp_auth_property_iterator_next(ref it)) != IntPtr.Zero) |
| { |
| var authProperty = PtrToAuthProperty(authPropertyPtr); |
| |
| if (!propertiesDict.ContainsKey(authProperty.Name)) |
| { |
| propertiesDict[authProperty.Name] = new List<AuthProperty>(); |
| } |
| propertiesDict[authProperty.Name].Add(authProperty); |
| } |
| |
| return new AuthContext(peerIdentityPropertyName, propertiesDict); |
| } |
| |
| protected override bool ReleaseHandle() |
| { |
| Native.grpcsharp_auth_context_release(handle); |
| return true; |
| } |
| |
| private AuthProperty PtrToAuthProperty(IntPtr authPropertyPtr) |
| { |
| #pragma warning disable 0618 |
| // We need to use the obsolete non-generic version of Marshal.PtrToStructure, because the generic version is not available in net45 |
| var nativeAuthProperty = (NativeAuthProperty) Marshal.PtrToStructure(authPropertyPtr, typeof(NativeAuthProperty)); |
| #pragma warning restore 0618 |
| var name = Marshal.PtrToStringAnsi(nativeAuthProperty.Name); |
| var valueBytes = new byte[(int) nativeAuthProperty.ValueLength]; |
| Marshal.Copy(nativeAuthProperty.Value, valueBytes, 0, (int)nativeAuthProperty.ValueLength); |
| return AuthProperty.CreateUnsafe(name, valueBytes); |
| } |
| |
| /// <summary> |
| /// grpc_auth_property |
| /// </summary> |
| internal struct NativeAuthProperty |
| { |
| public IntPtr Name; |
| public IntPtr Value; |
| public UIntPtr ValueLength; |
| } |
| |
| /// <summary> |
| /// grpc_auth_property_iterator |
| /// </summary> |
| internal struct NativeAuthPropertyIterator |
| { |
| public IntPtr AuthContext; |
| public UIntPtr Index; |
| public IntPtr Name; |
| } |
| } |
| } |