void Client_OnQueryMessage(object sender, IrcEventArgs e)
{
using (var context = new DataContext())
{
switch (e.Data.Type)
{
case ReceiveType.Join:
Client.RfcNotice(e.Data.Nick, "Hi, I am a IRC bot written in C# that executes code with Roslyn.");
Client.RfcNotice(e.Data.Nick, "To try me out, send me a private message with the following: var hello = \"hello world\"; return hello;");
Client.RfcNotice(e.Data.Nick, "You can also execute multi-line commands by starting the line with \">>\" remember to have a return statement in your last command");
break;
case ReceiveType.ChannelMessage:
if ((e.Data.Type == ReceiveType.ChannelMessage && e.Data.Message.StartsWith(BotSettings.Default.Name) && e.Data.Message.Length > BotSettings.Default.Name.Length) || (e.Data.Message.StartsWith(">>") && e.Data.Message.Length > 4))
{
var queryCommand = e.Data.Message.Substring(string.Format(BotSettings.Default.Name).Length + 1).Trim();
ProcessCommand(e, context, queryCommand);
}
break;
case ReceiveType.QueryMessage:
var channelCommand = e.Data.Message;
ProcessCommand(e, context, channelCommand);
break;
}
}
}
public object Execute(string code)
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en");
Thread.CurrentThread.CurrentUICulture = new CultureInfo("en");
// if (!Validate(code)) return "Not implemented";
const string entryPoint = "using System; public class EntryPoint { public static object Result {get;set;} public static void Main() { try { Result = Script.Eval(); } catch(Exception ex) { Result = ex.ToString(); } } }"; // new StreamReader("EntryPoint.txt").ReadToEnd();
var script = "public static object Eval() {" + code + "}";
var core = Assembly.Load("System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
var system = Assembly.Load("System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
string[] namespaces;
using (var context = new DataContext())
{
var query = from ns in context.Namespaces
select ns.Namespace;
namespaces = query.ToArray();
}
var compilation = Compilation.Create("foo",
options: new CompilationOptions(assemblyKind: AssemblyKind.ConsoleApplication, usings: ReadOnlyArray<string>.CreateFrom(namespaces)),
syntaxTrees: new[]
{
SyntaxTree.ParseCompilationUnit(entryPoint),
SyntaxTree.ParseCompilationUnit(script, options: new ParseOptions(kind: SourceCodeKind.Interactive))
},
references: new MetadataReference[] {
new AssemblyFileReference(typeof(object).Assembly.Location),
new AssemblyFileReference(core.Location),
new AssemblyFileReference(system.Location)
});
byte[] compiledAssembly;
using (var output = new MemoryStream())
{
EmitResult emitResult = compilation.Emit(output, null, null, null, xmlNameResolver: null);
if (!emitResult.Success)
{
var errors = emitResult.Diagnostics.Select(x => x.Info.GetMessage().Replace("Eval()", "<Factory>()").ToString()).ToArray();
return String.Join(", ", errors);
}
// report errors if emitResult.Diagnostics has any
compiledAssembly = output.ToArray();
}
if (compiledAssembly.Length == 0) return "Incorrect data";
AppDomain sandbox = CreateSandbox();
var loader = (ByteCodeLoader)Activator.CreateInstance(sandbox, typeof(ByteCodeLoader).Assembly.FullName, typeof(ByteCodeLoader).FullName).Unwrap();
object result = null;
try
{
var scriptThread = new Thread(() =>
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en");
Thread.CurrentThread.CurrentUICulture = new CultureInfo("en");
try
{
result = loader.Run(compiledAssembly);
}
catch(Exception ex)
{
result = ex.Message;
}
});
scriptThread.Start();
if (!scriptThread.Join(6000))
{
scriptThread.Abort();
AppDomain.Unload(sandbox);
return "Timeout";
}
}
catch(Exception ex)
{
result = ex.InnerException != null ? ex.InnerException.ToString() : ex.ToString();
}
AppDomain.Unload(sandbox);
if (result == null || String.IsNullOrEmpty(result.ToString())) result = "null";
return FormatResult(result);
}
void Execute(IrcEventArgs e, DataContext context, string commandText)
{
if (context.Commands.Any(x => x.Username == e.Data.Nick))
{
var commands = context.Commands.Where(x => x.Username == e.Data.Nick).OrderBy(x => x.Posted).Select(x => x.Command).ToArray();
var toExecute = string.Join(Environment.NewLine, commands);
toExecute += commandText;
RunInSandbox(toExecute, e.Data);
foreach (var command in context.Commands.Where(x => x.Username == e.Data.Nick))
context.DeleteObject(command);
context.SaveChanges();
}
else
{
RunInSandbox(commandText, e.Data);
}
}
void QueueCommand(IrcEventArgs e, DataContext context, string commandText)
{
commandText = commandText.Substring(2).Trim();
var command = new Commands { Id = Guid.NewGuid(), Command = commandText.Trim(), Posted = DateTime.Now, Username = e.Data.Nick };
context.Commands.AddObject(command);
context.SaveChanges();
}
void ProcessCommand(IrcEventArgs e, DataContext context, string commandText)
{
if (context.Users.Any(x => x.Ident == e.Data.Ident && x.UserLevel == -1)) return;
if (IsPasteUrl(commandText.Split(' ')[0]))
{
HandlePastedCode(e, context, commandText);
}
else if (commandText.StartsWith(">>"))
{
QueueCommand(e, context, commandText);
}
else
{
Execute(e, context, commandText);
}
}
void HandlePastedCode(IrcEventArgs e, DataContext context, string commandText)
{
var host = commandText.Split(' ')[0];
var client = new WebClient();
string pasteId = string.Empty;
string toExecute = string.Empty;
if (host.Contains("http://pastebin.com"))
{
pasteId = commandText.Split(' ')[0].Replace("http://pastebin.com/", "");
toExecute = client.DownloadString(string.Format("http://pastebin.com/raw.php?i={0}", pasteId));
}
else if (host.Contains("http://pastie.org"))
{
pasteId = commandText.Split(' ')[0].Replace("http://pastie.org/", "");
toExecute = client.DownloadString(string.Format("http://pastie.org/pastes/{0}/text", pasteId));
}
Execute(e, context, toExecute);
}