Question

当我将DotNetOpenAuth dll放入我的/ bin目录时，我的应用程序将无法使用以下堆栈跟踪运行。有没有人有这个图书馆的经验？我已经浏览了他们的文档，并怀疑我没有正确部署它。我的网络应用程序应该在我的本地计算机上完全信任地运行，因此不清楚它无法获取它所要求的权限。

谢谢！汤姆

[PolicyException: Required permissions cannot be acquired.]
   System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) +10238142
   System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) +97

[FileLoadException: Could not load file or assembly 'DotNetOpenAuth, Version=3.3.1.9337, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
   System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
   System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +416
   System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +166
   System.Reflection.Assembly.Load(String assemblyString) +35
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +190

[ConfigurationErrorsException: Could not load file or assembly 'DotNetOpenAuth, Version=3.3.1.9337, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +11207304
   System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +388
   System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +232
   System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() +48
   System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +210
   System.Web.Compilation.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +76
   System.Web.Compilation.CodeDirectoryCompiler.GetCodeDirectoryAssembly(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories, Boolean isDirectoryAllowed) +11196482
   System.Web.Compilation.BuildManager.CompileCodeDirectory(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories) +185
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +551

[HttpException (0x80004005): Could not load file or assembly 'DotNetOpenAuth, Version=3.3.1.9337, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
   System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +76
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +1012
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +1025

[HttpException (0x80004005): Could not load file or assembly 'DotNetOpenAuth, Version=3.3.1.9337, Culture=neutral, PublicKeyToken=2780ccd10d57b246' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11301302
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4338644

Answer 1

奇怪的是，我发现解决方案与this有关。

应用程序池标识有一个属性称为加载用户配置文件当此值为false时，您可以收到上面显示的错误。至解决此问题，打开IIS管理器和导航到您的应用程序池身份。你会找到的设置 “高级设置”窗口。更改它是真的。

我发现当我将其设置为true时，库再次开始工作。当我将其重新设置为false时，即使在服务重新启动和应用程序池回收后，它仍继续工作。所以，奇怪的是现在一切都好看。

Answer 2

看起来Code Access Security不会考虑以完全信任的方式加载DotNetOpenAuth。实际上，它只需要中等信任，但这里是DotNetOpenAuth请求的最小权限列表：

[assembly: SecurityPermission(SecurityAction.RequestMinimum, Execution = true)]
[assembly: WebPermission(SecurityAction.RequestMinimum, ConnectPattern = @"http://.*")]
[assembly: WebPermission(SecurityAction.RequestMinimum, ConnectPattern = @"https://.*")]

第二对夫妇可能会从某些中等信任配置中丢失，但如果您以完全信任的方式运行，那么它应该是一个非问题。

尝试将<trust level="Full"/>添加到其<system.web>部分中的web.config文件中，看看是否有帮助，或者生成错误以帮助您缩小问题范围。

使用DotNetOpenAuth库时的PolicyException

2 个答案: