C# Unity 中的 AWS Cognito 用户身份验证

Question

我一直在努力让 AWS Cognito 用户授权在 Unity 2017 中工作。

根据此请求，Unity SDK 存在限制： https://forums.aws.amazon.com/thread.jspa?threadID=248872

我尝试了几种不同的方法，最接近的是这里的代码： https://gist.github.com/dbeattie71/44ea3a13145f185d303e620c299ab1c5

然而，当我使用所有详细信息设置调用 LoginUser 时，我得到了这个堆栈：

ArgumentNullException: Value cannot be null.
Parameter name: key
System.ThrowHelper.ThrowArgumentNullException (System.ExceptionArgument argument) (at <c95265f74fdf4905bfb0d5a4b652216c>:0)
System.Collections.Generic.Dictionary`2[TKey,TValue].FindEntry (TKey key) (at <c95265f74fdf4905bfb0d5a4b652216c>:0)
System.Collections.Generic.Dictionary`2[TKey,TValue].TryGetValue (TKey key, TValue& value) (at <c95265f74fdf4905bfb0d5a4b652216c>:0)
Amazon.Runtime.Internal.ErrorHandler.ProcessException (Amazon.Runtime.IExecutionContext executionContext, System.Exception exception) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/ErrorHandler/ErrorHandler.cs:202)
Amazon.Runtime.Internal.ErrorHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/ErrorHandler/ErrorHandler.cs:78)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.CallbackHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/CallbackHandler.cs:45)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.Signer.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/Signer.cs:38)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.CredentialsRetriever.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/CredentialsRetriever.cs:72)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.RetryHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/RetryHandler/RetryHandler.cs:84)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.CallbackHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/CallbackHandler.cs:45)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.EndpointResolver.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/EndpointResolver.cs:34)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.Marshaller.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/Marshaller.cs:37)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.CallbackHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/CallbackHandler.cs:45)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.ErrorCallbackHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/ErrorCallbackHandler.cs:44)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.MetricsHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/MetricsHandler.cs:40)
Amazon.Runtime.Internal.PipelineHandler.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/PipelineHandler.cs:57)
Amazon.Runtime.Internal.RuntimePipeline.InvokeSync (Amazon.Runtime.IExecutionContext executionContext) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/Pipeline/RuntimePipeline.cs:135)
Amazon.Runtime.AmazonServiceClient.Invoke[TRequest,TResponse] (TRequest request, Amazon.Runtime.Internal.Transform.IMarshaller`2[T,R] marshaller, Amazon.Runtime.Internal.Transform.ResponseUnmarshaller unmarshaller) (at E:/JenkinsWorkspaces/v3-trebuchet-release/AWSDotNetPublic/sdk/src/Core/Amazon.Runtime/AmazonServiceClient.cs:204)
Amazon.CognitoIdentityProvider.AmazonCognitoIdentityProviderClient.InitiateAuth (Amazon.CognitoIdentityProvider.Model.InitiateAuthRequest request) (at <d5265c16c8474ca8b01b52f514c6ef90>:0)
Com.Mmlac.Authentication.LoginUser (System.String username, System.String password) (at Assets/Authentication.cs:40)
AuthenticationTest.Start () (at Assets/AuthenticationTest.cs:20)

先决条件是：

添加 Unity AWS-SDK，
重要的是，添加缺少的 CognitoIdentityProvider：
- 此处描述https://github.com/aws/aws-sdk-net/issues/534
- ..链接到一个可能的解决方案，在这里： https://github.com/SolidWhiteSven/amazon-cognito-unity

Answer 1

我认为您可能会发现 AWSSDK.Extensions.CognitoAuthentication 很有用，它增强了适用于 .NET 的 AWS SDK，后者在 AWS Cognito 和身份验证领域非常有限。具体来说，该库处理 SRP 协议，这是开发人员最终在我在 GitHub.

上看到的几个项目中自行编码的东西

Amazon 博客对此库有很好的介绍 post here

C# Unity 中的 AWS Cognito 用户身份验证

AWS Cognito User Authentication in C# Unity

c#

unity3d

amazon-cognito

aws-sdk

aws-cognito