android - AWS SDK KMS ListKeysAsync 在 Xamarin/Android 上失败

Question

我正在使用 Visual Studio 2015 在基于 Xamarin 的项目上使用 AWSSDK.KeyManagementService 和 AWSSDK.Core，并尝试在我的 Android 构建（SDK 23）上对其进行测试。我通过 NuGet 安装了 AWS 的东西，一切都很好。这是我第一次尝试使用 AWS 开发工具包。

当我尝试将 KMS 用于 ListKeysAsync() 之类的简单操作时，我得到了 Amazon.Runtime.Internal.HttpErrorResponseException 的转储。我没有使用代理。

这是顶级异常：

ERROR|An exception of type HttpErrorResponseException was handled in ErrorHandler. --> Amazon.Runtime.Internal.HttpErrorResponseException: Exception of type 'Amazon.Runtime.Internal.HttpErrorResponseException' was thrown.
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.HttpWebRequestMessage+<GetResponseAsync>d__20.MoveNext () [0x000fa] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\HttpHandler\_mobile\HttpRequestMessageFactory.cs:404

下面有一个非常大的堆栈跟踪：

12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883): --- End of stack trace from previous location where exception was thrown ---
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:535 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.HttpHandler`1+<InvokeAsync>d__9`1[TRequestContent,T].MoveNext () [0x00233] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\HttpHandler\HttpHandler.cs:175 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883): --- End of stack trace from previous location where exception was thrown ---
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:535 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Unmarshaller+<InvokeAsync>d__3`1[T].MoveNext () [0x00031] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\Handlers\Unmarshaller.cs:85 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883): --- End of stack trace from previous location where exception was thrown ---
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
12-27 15:47:20.083 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x0
12-27 15:47:20.113 D/Mono    (30883): Assembly Ref addref AWSSDK.Core[0xad97ef20] -> System.Xml[0x98fee280]: 7

然后在顶部的下面有第二个例外：

ERROR|Failed to unmarshall a service error response. --> Amazon.Runtime.AmazonUnmarshallingException: Error unmarshalling response back from AWS.  ---> ThirdParty.Json.LitJson.JsonException: Invalid character 'T' in input string

及其堆栈跟踪：

12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.Lexer.NextToken () [0x00027] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\Lexer.cs:884 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.JsonReader.ReadToken () [0x0000a] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\JsonReader.cs:251 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.JsonReader.Read () [0x0003d] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\JsonReader.cs:297 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext.Read () [0x0001e] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\JsonUnmarshallerContext.cs:182 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonErrorResponseUnmarshaller.Unmarshall (Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext context) [0x000dc] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\JsonErrorResponseUnmarshaller.cs:47 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.KeyManagementService.Model.Internal.MarshallTransformations.ListKeysResponseUnmarshaller.UnmarshallException (Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext context, System.Exception innerException, System.Net.HttpStatusCode statusCode) [0x00005] in <b3a8ad2de97f4b7db1231ba6a3cc3cf4>:0 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonResponseUnmarshaller.UnmarshallException (Amazon.Runtime.Internal.Transform.UnmarshallerContext input, System.Exception innerException, System.Net.HttpStatusCode statusCode) [0x00015] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\ResponseUnmarshallers.cs:198 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleException (Amazon.Runtime.IExecutionContext executionContext, Amazon.Runtime.Internal.HttpErrorResponseException exception) [0x00063] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\HttpErrorResponseExceptionHandler.cs:78 
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):    --- End of inner exception stack trace ---
12-27 15:47:20.163 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleException (Amazon.Runtime.IExecutionContext executionContext, Amazon.Runtime.Internal.HttpErrorResponseException exception) [0x000a0] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\HttpErrorResponseExceptionHandler.cs:93 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883): 4|2016-12-27T15:47:20.193Z|ERROR|AmazonUnmarshallingException making request ListKeysRequest to https://kms.us-east-1.amazonaws.com/. Attempt 1. --> Amazon.Runtime.AmazonUnmarshallingException: Error unmarshalling response back from AWS.  ---> ThirdParty.Json.LitJson.JsonException: Invalid character 'T' in input string
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.Lexer.NextToken () [0x00027] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\Lexer.cs:884 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.JsonReader.ReadToken () [0x0000a] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\JsonReader.cs:251 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at ThirdParty.Json.LitJson.JsonReader.Read () [0x0003d] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\ThirdParty\Json\JsonReader.cs:297 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext.Read () [0x0001e] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\JsonUnmarshallerContext.cs:182 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonErrorResponseUnmarshaller.Unmarshall (Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext context) [0x000dc] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\JsonErrorResponseUnmarshaller.cs:47 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.KeyManagementService.Model.Internal.MarshallTransformations.ListKeysResponseUnmarshaller.UnmarshallException (Amazon.Runtime.Internal.Transform.JsonUnmarshallerContext context, System.Exception innerException, System.Net.HttpStatusCode statusCode) [0x00005] in <b3a8ad2de97f4b7db1231ba6a3cc3cf4>:0 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.Transform.JsonResponseUnmarshaller.UnmarshallException (Amazon.Runtime.Internal.Transform.UnmarshallerContext input, System.Exception innerException, System.Net.HttpStatusCode statusCode) [0x00015] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Internal\Transform\ResponseUnmarshallers.cs:198 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleException (Amazon.Runtime.IExecutionContext executionContext, Amazon.Runtime.Internal.HttpErrorResponseException exception) [0x00063] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\HttpErrorResponseExceptionHandler.cs:78 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):    --- End of inner exception stack trace ---
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at Amazon.Runtime.Internal.HttpErrorResponseExceptionHandler.HandleException (Amazon.Runtime.IExecutionContext executionContext, Amazon.Runtime.Internal.HttpErrorResponseException exception) [0x000a0] in E:\JenkinsWorkspaces\v3-stage-release\AWSDotNetPublic\sdk\src\Core\Amazon.Runtime\Pipeline\ErrorHandler\HttpErrorResponseExceptionHandler.cs:93 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883): --- End of stack trace from previous location where exception was thrown ---
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00047] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x0002e] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x0000b] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 
12-27 15:47:20.183 E/AmazonKeyManagementServiceClient(30883):   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /Users/builder/data/lanes/3511/77cb8568/source/mono/mcs/class/referencesource/mscorli

第二个错误后的请求指标是：

Request metrics: {"properties":{"AsyncCall":"True","CanonicalRequest":"POST
/

content-type:application/x-amz-json-1.1
host:kms.us-east-1.amazonaws.com
user-agent:aws-sdk-dotnet-pcl/3.3.1.7 aws-sdk-dotnet-core/3.3.7.0 Mono/4.6.2(mono-4.6.0-branch:db69866) OS/ANDROID_6.0.1 PCL/Xamarin.Android ClientAsync
x-amz-content-sha256:1846efdbd7179f8a8d12f3d7c2f638c0c4d1983c994e36f14c47045f02702d36
x-amz-date:20161227T234717Z
x-amz-target:TrentService.ListKeys

content-type;host;user-agent;x-amz-content-sha256;x-amz-date;x-amz-target
1846efdbd7179f8a8d12f3d7c2f638c0c4d1983c994e36f14c47045f02702d36","StringToSign":"AWS4-HMAC-SHA256
20161227T234717Z
20161227/us-east-1/kms/aws4_request 0023aa3cf6e3e310f35016f9a186645be47313670761e59664a3743b768e68a7","ServiceName":"    Amazon.KeyManagementService","ServiceEndpoint":"https://kms.us-east-1.amazonaws.com/","MethodName":"ListKeysRequest","RequestSize":"12","Exception":"Amazon.Runtime.Internal.HttpErrorResponseException: Exception of type 'Amazon.Runtime.Internal.HttpErrorResponseException' was thrown.

我的直觉告诉我，解组错误与中的 Java 日期/时间字符串有关x-amz-date" (20161227T234717Z)，其中日期和时间部分之间夹有一个“T”。该错误表示存在无效字符“T”。

在使用 Json.Net 解组 Java 创建的 JSON 请求时，我遇到了类似的问题，并且不得不为 .Net 的 DateTime 对象使用我自己的自定义转换器。

我不确定该解组错误是否与第一个 HTTP 异常有关。

我是 AWS 开发工具包的新手，只需要为我正在进行的项目使用系统的 KMS 部分。

当我导入 AWSSDK.Core 和 AWSSDK.KeyManagementService 时，它加载了一些依赖项。这是列表：

AWSSDK.CognitoIdentity v3.3.0.0 - 运行时 v4.0.30319 [仅用于测试]
AWSSDK.Core v3.3.0.0 - 运行时 v4.0.30319
AWSSDK.KeyManagementService v3.3.0.0 - 运行时 v4.0.30319
AWSSDK.SecurityToken v3.3.0.0 - 运行时 v4.0.30319
PCLCrypto v1.0.0.0 运行时 v4.0.30319
PCLStorage v1.0.2.0 - 运行时 v4.0.30319
PCLStorage.Abstractions v1.0.2.0 v4.0.30319

我的 Android 项目是使用 Visual Studio 2015 Update 3 为 SDK 23 (Marshmallow) 构建的。

这是我遇到问题的代码：

LoggingConfig _awsLogging    = AWSConfigs.LoggingConfig;

_awsLogging.LogMetrics       = true;
_awsLogging.LogResponses     = ResponseLoggingOption.Always;
_awsLogging.LogMetricsFormat = LogMetricsFormatOption.JSON;
_awsLogging.LogTo            = LoggingOptions.SystemDiagnostics;

AWSConfigs.AWSRegion           = "us-east-1";
//AWSConfigs.CorrectForClockSkew = true;

// Used only for testing of Cognito [works]
CognitoAWSCredentials creds  =  new CognitoAWSCredentials( "<<identity pool ID>>",
                                                         RegionEndpoint.USEast1 );

// Create a new credential option using our Cognito 
// identity pool for Plexus, using N. Virginia-1 region
AmazonKeyManagementServiceClient kmsClient  =
                new AmazonKeyManagementServiceClient( "<<access key>>",
                                                        "<<secret key>>",
                                                        RegionEndpoint.USEast1 );

kmsClient.Config.Validate();        // Validate configuration

ListKeysRequest request  =  new ListKeysRequest();
request.Limit = 20;

Task.Run( () =>
{
    try
    {
        // This line returned without error
        Task<ListKeysResponse> taskResponse  =  kmsClient.ListKeysAsync(request);

        // This line of code throws an exception down in the SDK / mscorlib
        taskResponse.Wait();

        ListKeysResponse response  =  taskResponse.Result;
    }
    catch ( Exception ex )
    {
        DebugLog.Fatal(ex);
    }
} );

我只使用 Cognito 的东西进行测试。这是ListKeysAsync()我遇到问题的电话。

有人有什么想法吗？我的应用程序中的其他任何地方都没有其他 AWS 代码 - 除了“使用”语句。Application.OnStart()顺便说一句，如果这很重要，则从方法调用此代码。

先感谢您。

杰夫·里德

android - AWS SDK KMS ListKeysAsync 在 Xamarin/Android 上失败

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