我有一些代码可以动态地将Razor模板编译成我执行的程序集 一组权限(无权访问文件等)。
这适用于我们的开发计算机和测试服务器(Windows 2008 IIS7 x64 .NET 4)。但是在我们的生产服务器(相同规范)上,它给出了错误:
“加载此程序集将从其他实例生成不同的授权集。(HRESULT异常:0x80131401)”
以下是代码: -
public static SandboxContext Create(string pathToUntrusted, List<Assembly> references)
{
AppDomainSetup adSetup = new AppDomainSetup();
adSetup.ShadowCopyFiles = "true";
var dir = new DirectoryInfo(pathToUntrusted);
String tempPath = Path.Combine(Path.GetTempPath(), dir.Name + "_shadow");
adSetup.CachePath = tempPath;
// Our sandbox needs access to this assembly.
string AccessPath = Path.Combine(System.Web.Hosting.HostingEnvironment.ApplicationPhysicalPath, "bin\\CommonInterfaces.WebPages.dll");
System.IO.File.Copy(AccessPath, Path.Combine(pathToUntrusted, "CommonInterfaces.WebPages.dll"), true);
var baseDir = Path.GetFullPath(pathToUntrusted);
adSetup.ApplicationBase = baseDir;
adSetup.PrivateBinPath = baseDir;
adSetup.PartialTrustVisibleAssemblies =
new string[] {
typeof(System.Web.WebPageTraceListener).Assembly.FullName,
typeof(System.Web.Razor.RazorEngineHost).Assembly.FullName};
//Setting the permissions for the AppDomain. We give the permission to execute and to
//read/discover the location where the untrusted code is loaded.
PermissionSet permSet = new PermissionSet(PermissionState.None);
permSet.AddPermission(new SecurityPermission(SecurityPermissionFlag.Execution));
//We want the sandboxer assembly's strong name, so that we can add it to the full trust list.
StrongName fullTrustAssembly = typeof(Sandboxer).Assembly.Evidence.GetHostEvidence<StrongName>();
Evidence evidence = new Evidence();
//Now we have everything we need to create the AppDomain, so let's create it.
AppDomain newDomain = AppDomain.CreateDomain("Sandbox", evidence, adSetup, permSet, fullTrustAssembly);
ObjectHandle handle = Activator.CreateInstanceFrom(
newDomain, typeof(Sandboxer).Assembly.ManifestModule.FullyQualifiedName,
typeof(Sandboxer).FullName
);
//Unwrap the new domain instance into a reference in this domain and use it to execute the
//untrusted code.
var newDomainInstance = (Sandboxer)handle.Unwrap();
return new SandboxContext(newDomain, newDomainInstance);
}
为什么在一台服务器上会有所不同?我刚刚在破损的服务器上安装了所有未完成的Windows更新,但没有帮助。
如果我将PermissionSet更改为: -
PermissionSet permSet = new PermissionSet(PermissionState.Unrestricted);
所有代码都有效(但可能存在安全问题)
答案 0 :(得分:1)
当您尝试使用不同的权限集将程序集加载到现有AppDomain两次时,通常会发生此错误。 $ 1M的问题是它是什么装配,以及AppDomain是什么。
我没有完整的答案,但您可以查看以下内容:
您还可以尝试在服务器上安装远程调试运行时,将调试器附加到托管应用程序的进程,并直接检查在哪个域中加载的内容。您可能需要SOS调试扩展。