C# ITfoxtec.Identity.Saml2无效URI问题

当我将

net462

用于Okta SAML实现时，当我使用

new Saml2AuthnRequest（config）时，会抛出一个无效的URL

但在我第一次尝试在netcoreapp3.1上使用此代码时，它运行得非常好。如果我错过了什么，请告诉我。谢谢

实际例外

System.UriFormatException: Invalid URI: The format of the URI could not be determined.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetAudienceRestriction(Boolean audienceRestricted, IEnumerable`1 allowedAudienceUris)
   at ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetIdentityConfiguration(Saml2Configuration config)
   at ITfoxtec.Identity.Saml2.Saml2Request..ctor(Saml2Configuration config)
   at ITfoxtec.Identity.Saml2.Saml2AuthnRequest..ctor(Saml2Configuration config)
   at SAMLNet461.Controllers.HomeController.Index(String returnUrl) in D:\REPO\PELICAN\LOCAL\SAML.RND - CompanyAcccounts adjustment\SAML.Demo\SAMLNet461\Controllers\HomeController.cs:line 69
   at lambda_method(Closure , Object , Object[] )
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextActionFilterAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextResourceFilter>d__23.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeFilterPipelineAsync>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeAsync>d__16.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.<Invoke>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()

System.UriFormatException:无效的URI:无法确定URI的格式。
在System.Uri.CreateThis（字符串Uri、布尔顿特斯卡普、UriKind）
位于ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetAudienceRestriction（布尔audienceRestricted，IEnumerable`1 allowedAudienceUris）
在ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetIdentityConfiguration（Saml2Configuration config）中
在ITfoxtec.Identity.Saml2.Saml2Request..ctor（Saml2配置配置）
在ITfoxtec.Identity.Saml2.Saml2AuthnRequest..ctor（Saml2配置配置）
在D:\REPO\PELICAN\LOCAL\SAML.RND-companyaccounts adjustment\SAML.Demo\SAMLNet461\Controllers\HomeController.cs中的SAMLNet461.Controllers.HomeController.Index（字符串返回URL）处：第69行
在lambda_方法（闭包、对象、对象[]）
位于Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute（IActionResultTypeMapper映射器、ObjectMethodExecutor执行器、对象控制器、对象[]参数）
在Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d_u12.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d_u10.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
位于Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow（ActionExecutedContext上下文）
位于Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next（状态和下一步、范围和范围、对象和状态、布尔值和isCompleted）
在Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d_u13.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d_u23.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
位于Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow（ResourceExecutedContext）
在Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next（State&Next、Scope&Scope、Object&State、Boolean&isCompleted）
在Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d_u18.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d_u16.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在Microsoft.AspNetCore.Builder.RouterMiddleware.d_u4.MoveNext（）上
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.d_u7.MoveNext（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）中
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.d__7.MoveNext（）上

代码看起来正确

可能是TLS版本问题

另一种解决方案是下载代码中的元数据，并将元数据字符串添加到库中：

更新：

与观众限制相关的错误：

config.AllowedAudienceUris.Add("Okta_SAML_Example"); 

访问群体必须是.NET Framework应用程序中的URI。纯文本字符串仅在.NET Core和.NET 5.0中受支持

---

.NET Framework示例：

谢谢您的回答。我将在明天早些时候尝试此解决方案，并将再次向您更新结果。谢谢。即使我下载了XML，我仍然会遇到相同的错误。在实例化新的Saml2AuthnRequest（config）时是否会发生错误？是否有其他解决方法，或者您是否有针对net462的演示/简单？谢谢您的更新，Anders您是正确的问题是观众限制我刚刚更新了Okta观众限制，以获得有效的URL，然后它就可以工作了。非常感谢您。

System.UriFormatException: Invalid URI: The format of the URI could not be determined.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetAudienceRestriction(Boolean audienceRestricted, IEnumerable`1 allowedAudienceUris)
   at ITfoxtec.Identity.Saml2.Configuration.Saml2IdentityConfiguration.GetIdentityConfiguration(Saml2Configuration config)
   at ITfoxtec.Identity.Saml2.Saml2Request..ctor(Saml2Configuration config)
   at ITfoxtec.Identity.Saml2.Saml2AuthnRequest..ctor(Saml2Configuration config)
   at SAMLNet461.Controllers.HomeController.Index(String returnUrl) in D:\REPO\PELICAN\LOCAL\SAML.RND - CompanyAcccounts adjustment\SAML.Demo\SAMLNet461\Controllers\HomeController.cs:line 69
   at lambda_method(Closure , Object , Object[] )
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextActionFilterAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextResourceFilter>d__23.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeFilterPipelineAsync>d__18.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeAsync>d__16.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.<Invoke>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()

var idPMetadataXml = "... downloaded metadata ...";
var entityDescriptor = new EntityDescriptor();
entityDescriptorReadIdPSsoDescriptor(idPMetadataXml);
...

config.AllowedAudienceUris.Add("Okta_SAML_Example");