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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.CodeDom.Compiler;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Text.RegularExpressions;
using log4net;
using OpenSim.ScriptEngine.Shared;
using ScriptAssemblies;
namespace OpenSim.ScriptEngine.Components.DotNetEngine.Compilers
{
public abstract class CILCompiler
{
internal static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private string ScriptEnginesPath = "ScriptEngines";
private string Name { get { return "SECS.DotNetEngine.CILCompiler"; } }
private string m_scriptAssemblyName;
internal string ScriptAssemblyName { get { return m_scriptAssemblyName; } set { m_scriptAssemblyName = value; } }
// Default inherit
protected string ScriptInheritFrom = typeof(ScriptAssemblies.ScriptBase).Name;
private readonly System.Security.Cryptography.MD5CryptoServiceProvider MD5Sum = new System.Security.Cryptography.MD5CryptoServiceProvider();
protected CodeDomProvider CompileProvider;
//private string[] AppDomainAssemblies = new string[] { "OpenSim.Region.ScriptEngine.Shared.dll", "OpenSim.Region.ScriptEngine.Shared.Script.dll", "OpenSim.Region.ScriptEngine.Shared.Api.Runtime.dll" };
private readonly string[] AppDomainAssemblies = new string[] {
Assembly.GetAssembly(typeof(Int32)).Location,
"OpenSim.ScriptEngine.Shared.dll",
"OpenSim.ScriptEngine.Shared.Script.dll",
Path.Combine("ScriptEngines", "OpenSim.Region.ScriptEngine.Shared.dll")
};
public abstract string PreProcessScript(ref string script);
public CILCompiler()
{
}
private static readonly Regex FileNameFixer = new Regex(@"[^a-zA-Z0-9\.\-]", RegexOptions.Compiled | RegexOptions.Singleline);
public string Compile(ScriptMetaData data, ref string _script)
{
// Add "using", "inherit", default constructor, etc around script.
string script = PreProcessScript(ref _script);
// Get filename based on content
string md5Sum = System.Convert.ToBase64String(
MD5Sum.ComputeHash(
System.Text.Encoding.ASCII.GetBytes(script)
));
// Unique name for this assembly
ScriptAssemblyName = "SECS_Script_" + FileNameFixer.Replace(md5Sum, "_");
string OutFile = Path.Combine(ScriptEnginesPath, ScriptAssemblyName + ".dll");
// Make sure target dir exist
if (!Directory.Exists(ScriptEnginesPath))
try { Directory.CreateDirectory(ScriptEnginesPath); }
catch { }
// Already exist? No point in recompiling
if (File.Exists(OutFile))
return OutFile;
//
// Dump source code
//
string dumpFile = OutFile + ".txt";
try
{
if (File.Exists(dumpFile))
File.Delete(dumpFile);
File.WriteAllText(dumpFile, script);
}
catch (Exception e)
{
m_log.DebugFormat("[{0}] Exception trying to dump script source code to file \"{1}\": {2}", Name, dumpFile, e.ToString());
}
//
// COMPILE
//
CompilerParameters parameters = new CompilerParameters();
parameters.IncludeDebugInformation = true;
//string rootPath = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory);
foreach (string file in AppDomainAssemblies)
{
parameters.ReferencedAssemblies.Add(file);
m_log.DebugFormat("[{0}] Adding reference for compile: \"{1}\".", Name, file);
}
//lock (commandProvider)
//{
// foreach (string key in commandProvider.Keys)
// {
// IScriptCommandProvider cp = commandProvider[key];
// string
// file = cp.GetType().Assembly.Location;
// parameters.ReferencedAssemblies.Add(file);
// m_log.DebugFormat("[{0}] Loading command provider assembly \"{1}\" into AppDomain: \"{2}\".", Name,
// key, file);
// }
//}
parameters.GenerateExecutable = false;
parameters.OutputAssembly = OutFile;
parameters.IncludeDebugInformation = true;
//parameters.WarningLevel = 1; // Should be 4?
parameters.TreatWarningsAsErrors = false;
// Do compile
CompilerResults results = CompileProvider.CompileAssemblyFromSource(parameters, script);
//
// WARNINGS AND ERRORS
//
//TODO
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";
//TODO: Implement
KeyValuePair<int, int> lslPos = new KeyValuePair<int, int>();
//lslPos = "NOT IMPLEMENTED";// FindErrorPosition(CompErr.Line, CompErr.Column);
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",
lslPos.Key - 1, lslPos.Value - 1,
CompErr.ErrorNumber, text, severity);
}
if (!File.Exists(OutFile))
{
throw new Exception(errtext);
}
}
// TODO: Process errors
return OutFile;
}
}
}
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