为什么我的 .net 应用程序需要完全信任? [英] Why does my .net application require full trust?

问题描述

我开发了一个 .net 3.0 应用程序，该应用程序使用 clickonce 进行部署.

I've developed a .net 3.0 application, which is deployed using clickonce.

我想从完全信任转变为部分信任以简化部署.

I'd like to move from full trust to partial trust to ease deployment.

我已经在visual studio下我的项目的安全"选项卡中尝试了计算权限"工具，答案很清楚:

I've tried the "Calculate Permissions" tool in the "Security" tab of my project under visual studio, and the answer is quite clear :

---------------------------
Microsoft Visual Studio
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This application requires full trust to run correctly.

但是，我一直无法弄清楚为什么需要完全信任.我尝试将安全设置更改为部分信任"，但应用程序在启动时立即引发 SecurityException:

However, I've not been able to figure out why full trust is required. I've tried to change the security settings to "partial trust", but the application raises a SecurityException immediately upon launch :

System.Security.SecurityException   {"Request failed.", Action= "System.Security.Permissions.SecurityAction.LinkDemand"
   at MyNameSpace.Program.Main(String[] args)
   at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
   at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
   at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
   at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
   at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
   at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
   at System.Activator.CreateInstance(ActivationContext activationContext)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

我的软件可能不需要完全信任(我只使用 https 连接到网络服务器，并且仅根据用户请求访问文件系统，用于导入/导出目的)

My software probably doesn't need full trust (I only connect to a webserver using https, and access the filesystem only upon user request, for importation/exportation purposes)

我如何弄清楚为什么我的应用程序需要完全信任?

How can I figure out why my application requires full trust?

推荐答案

在 app.config 的配置部分中添加 requirePermission='false' 属性有很大帮助:

Adding the requirePermission='false' attribute in the app.config's configsections helps a lot :

 <sectionGroup name="system.net" type="System.Net.Configuration.NetSectionGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <section requirePermission="false" name="defaultProxy" type="System.Net.Configuration.DefaultProxySection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    </sectionGroup>

这对我来说很成功！

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