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using System;
using System.CodeDom.Compiler;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Text;
using log4net;
using Microsoft.CSharp;
using Nini.Config;
using OpenMetaverse;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
namespace OpenSim.Region.OptionalModules.Scripting.Minimodule
{
public class MRMModule : IRegionModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private Scene m_scene;
private readonly Dictionary<UUID,MRMBase> m_scripts = new Dictionary<UUID, MRMBase>();
private static readonly CSharpCodeProvider CScodeProvider = new CSharpCodeProvider();
public void Initialise(Scene scene, IConfigSource source)
{
if (source.Configs["MRM"] != null)
{
if (source.Configs["MRM"].GetBoolean("Enabled", false))
{
m_log.Info("[MRM] Enabling MRM Module");
m_scene = scene;
scene.EventManager.OnRezScript += EventManager_OnRezScript;
}
else
{
m_log.Info("[MRM] Disabled MRM Module (Express)");
}
}
else
{
m_log.Info("[MRM] Disabled MRM Module (Omission)");
}
}
void EventManager_OnRezScript(uint localID, UUID itemID, string script, int startParam, bool postOnRez, string engine, int stateSource)
{
if (script.StartsWith("//MiniMod:C#"))
{
m_log.Info("[MRM] Found C# MRM");
IWorld m_world = new World(m_scene);
IHost m_host = new Host(new SOPObject(m_scene, localID));
MRMBase mmb = (MRMBase) AppDomain.CurrentDomain.CreateInstanceFromAndUnwrap(
CompileFromDotNetText(script, itemID.ToString()),
"OpenSim.MiniModule");
m_log.Info("[MRM] Created MRM Instance");
mmb.InitMiniModule(m_world, m_host);
m_scripts[itemID] = mmb;
m_log.Info("[MRM] Starting MRM");
mmb.Start();
}
}
public void PostInitialise()
{
}
public void Close()
{
foreach (KeyValuePair<UUID, MRMBase> pair in m_scripts)
{
pair.Value.Stop();
}
}
public string Name
{
get { return "MiniRegionModule"; }
}
public bool IsSharedModule
{
get { return false; }
}
/// <summary>
/// Stolen from ScriptEngine Common
/// </summary>
/// <param name="Script"></param>
/// <param name="uuid">Unique ID for this module</param>
/// <returns></returns>
internal string CompileFromDotNetText(string Script, string uuid)
{
const string ext = ".cs";
const string FilePrefix = "MiniModule";
// Output assembly name
string OutFile = Path.Combine("MiniModules", Path.Combine(
m_scene.RegionInfo.RegionID.ToString(),
FilePrefix + "_compiled_" + uuid + ".dll"));
// Create Directories for Assemblies
if (!Directory.Exists("MiniModules"))
Directory.CreateDirectory("MiniModules");
string tmp = Path.Combine("MiniModules", m_scene.RegionInfo.RegionID.ToString());
if (!Directory.Exists(tmp))
Directory.CreateDirectory(tmp);
try
{
File.Delete(OutFile);
}
catch (IOException e)
{
throw new Exception("Unable to delete old existing " +
"script-file before writing new. Compile aborted: " +
e);
}
// DEBUG - write source to disk
string srcFileName = FilePrefix + "_source_" +
Path.GetFileNameWithoutExtension(OutFile) + ext;
try
{
File.WriteAllText(Path.Combine(Path.Combine(
"MiniModules",
m_scene.RegionInfo.RegionID.ToString()),
srcFileName), Script);
}
catch (Exception ex) //NOTLEGIT - Should be just FileIOException
{
m_log.Error("[Compiler]: Exception while " +
"trying to write script source to file \"" +
srcFileName + "\": " + ex.ToString());
}
// Do actual compile
CompilerParameters parameters = new CompilerParameters();
parameters.IncludeDebugInformation = true;
string rootPath =
Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory);
// TODO: Add Libraries
parameters.ReferencedAssemblies.Add(Path.Combine(rootPath,
"OpenSim.Region.OptionalModules.dll"));
parameters.ReferencedAssemblies.Add(Path.Combine(rootPath,
"log4net.dll"));
parameters.GenerateExecutable = false;
parameters.OutputAssembly = OutFile;
parameters.IncludeDebugInformation = true;
parameters.TreatWarningsAsErrors = false;
CompilerResults results = CScodeProvider.CompileAssemblyFromSource(
parameters, Script);
int display = 5;
if (results.Errors.Count > 0)
{
string errtext = String.Empty;
foreach (CompilerError CompErr in results.Errors)
{
// Show 5 errors max
//
if (display <= 0)
break;
display--;
string severity = "Error";
if (CompErr.IsWarning)
{
severity = "Warning";
}
string text = CompErr.ErrorText;
// The Second Life viewer's script editor begins
// countingn lines and columns at 0, so we subtract 1.
errtext += String.Format("Line ({0},{1}): {4} {2}: {3}\n",
CompErr.Line - 1, CompErr.Column - 1,
CompErr.ErrorNumber, text, severity);
}
if (!File.Exists(OutFile))
{
throw new Exception(errtext);
}
}
if (!File.Exists(OutFile))
{
string errtext = String.Empty;
errtext += "No compile error. But not able to locate compiled file.";
throw new Exception(errtext);
}
FileInfo fi = new FileInfo(OutFile);
Byte[] data = new Byte[fi.Length];
try
{
FileStream fs = File.Open(OutFile, FileMode.Open, FileAccess.Read);
fs.Read(data, 0, data.Length);
fs.Close();
}
catch (IOException)
{
string errtext = String.Empty;
errtext += "No compile error. But not able to open file.";
throw new Exception(errtext);
}
// Convert to base64
//
string filetext = Convert.ToBase64String(data);
ASCIIEncoding enc = new ASCIIEncoding();
Byte[] buf = enc.GetBytes(filetext);
FileStream sfs = File.Create(OutFile + ".cil.b64");
sfs.Write(buf, 0, buf.Length);
sfs.Close();
return OutFile;
}
}
}
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