public string Execute(string code)
{
var task = Task<string>.Factory.StartNew(() =>
{
try
{
if (!Validate(code)) return "Not implemeted";
var e = new Evidence();
e.AddHostEvidence(new Zone(SecurityZone.Untrusted));
var ps = SecurityManager.GetStandardSandbox(e);
var security = new SecurityPermission(SecurityPermissionFlag.NoFlags);
ps.AddPermission(security);
var setup = new AppDomainSetup { ApplicationBase = Environment.CurrentDirectory };
var domain = AppDomain.CreateDomain("Sandbox", e, setup, ps);
AppDomain.CurrentDomain.AssemblyResolve += DomainAssemblyResolve;
using (var memoryStream = new MemoryStream())
{
var defaultReferences = new[] {"System"};
var defaultNamespaces = new[] { "System" };
CommonScriptEngine engine = new ScriptEngine(defaultReferences, defaultNamespaces);
var options = new ParseOptions(kind: SourceCodeKind.Script, languageVersion: LanguageVersion.CSharp6);
foreach (var ns in defaultNamespaces) engine.Execute(string.Format("using {0};", ns), Session);
byte[] assembly = null;
var resultCode = engine.CompileSubmission<object>(code, Session);
resultCode.Compilation.Emit(memoryStream);
assembly = memoryStream.ToArray();
//var compilationSubmission = Engine.CompileSubmission<dynamic>(code, Session);
//compilationSubmission.Compilation.AddReferences(new AssemblyNameReference("System.IO, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"));
//compilationSubmission.Compilation.Emit(memoryStream);
domain.Load("mscorlib");
domain.Load("System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
domain.Load("Microsoft.Csharp, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");
domain.Load("Roslyn.Compilers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35");
domain.Load("Roslyn.Compilers.Csharp, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35");
_dynamicAssembly = Assembly.Load(assembly);
var loaded = domain.Load(assembly);
var submission = loaded.GetTypes().Where(x => x.Name.Contains("Submission")).Last();
var methods = submission.GetMethods();
var result = methods.Where(x => x.Name.Contains("Factory")).First().Invoke(submission, new[] { Session });
if (result != null)
return result.ToString();
AppDomain.Unload(domain);
}
}
catch (Exception ex)
{
return ex.ToString();
}
return null;
});
var finished = task.Wait(10000);
if (finished)
return task.Result;
return "Timeout";
}
