安全异常 ASP.NET

Question

所以我制作了这个在我的本地电脑上运行良好的应用程序，但是当我将它上传到我的网站时出现以下错误：

描述：应用程序试图执行的操作不是 安全策略允许的。授予此申请 所需权限请联系您的系统管理员或更改 应用程序在配置文件中的信任级别。例外 详细信息：System.Security.SecurityException：请求失败。

我四处搜索以解决此问题，发现将 <trust /> 元素添加到根级 web.config 可以解决此问题。我检查了我在 ASP.NET 设置中在我的网站上配置的信任级别（在本例中它设置为高），因此我在正确的 web.config 中执行了此操作：

<system.web>
    <securityPolicy>
        <trustLevel name="High" policyFile="web_hightrust.config"/>
    </securityPolicy>
    <customErrors mode="Off"/>
    <authentication mode="None"/>
    <compilation debug="true" targetFramework="4.6.1"/>
    <httpRuntime targetFramework="4.6.1"/>
    <httpModules>
        <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web"/>
    </httpModules>
</system.web>

这并没有解决我的问题，我没有任何途径可以探索尝试解决这个问题。下面是我收到上述错误的堆栈跟踪

[SecurityException: Request failed.]
System.Security.CodeAccessSecurityEngine.ThrowSecurityException(RuntimeAssembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandleInternal rmh, SecurityAction action, Object demand, IPermission permThatFailed) +165
System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Object assemblyOrString, PermissionSet granted, PermissionSet refused, RuntimeMethodHandleInternal rmh, SecurityAction action, Object demand, IPermission permThatFailed) +100
System.Security.CodeAccessSecurityEngine.CheckSetHelper(PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandleInternal rmh, Object assemblyOrString, SecurityAction action, Boolean throwException) +284
System.Security.CodeAccessSecurityEngine.CheckSetHelper(CompressedStack cs, PermissionSet grants, PermissionSet refused, PermissionSet demands, RuntimeMethodHandleInternal rmh, RuntimeAssembly asm, SecurityAction action) +70
System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type) +0
System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName) +70
System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark) +40
System.Type.GetType(String typeName) +30
System.CodeDom.Compiler.CompilerInfo.get_IsCodeDomProviderTypeValid() +12
System.Web.Compilation.CompilationUtil.GetRecompilationHash(CompilationSection ps) +2175
System.Web.Configuration.CompilationSection.get_RecompilationHash() +96
System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDateInternal(Int64 cachedHash) +458
System.Web.Compilation.BuildManager.CheckTopLevelFilesUpToDate(Int64 cachedHash) +51
System.Web.Compilation.BuildManager.ExecutePreAppStart() +135
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +531

Answer 1

这听起来像是您的托管服务提供商在部分信任下运行的问题，即 Microsoft 的 no longer officially supported。你应该：

1. 确认您的托管服务提供商确实使用了部分信任。
2. 坚持将其删除，因为它不再受支持。
3. 如果他们不遵守，请寻找支持完全信任的新托管服务提供商。