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* Applied patch from Melanie, mantis issue #1581 - "Refactor LSL language, api and compiler out of XEngine"
"First stage in a major Script Engine refactor, that will result in the LSL implementaions ebing reconverged. Not there yet, but one major part is done." Thank you, Melanie!
This commit is contained in:
lbsa71
515
OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
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515
OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs
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@@ -0,0 +1,515 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.CodeDom.Compiler;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using Microsoft.CSharp;
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using Microsoft.JScript;
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using Microsoft.VisualBasic;
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using OpenSim.Region.Environment.Interfaces;
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using OpenSim.Region.ScriptEngine.Interfaces;
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namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
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{
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public class Compiler
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{
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private static readonly log4net.ILog m_log
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= log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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// * Uses "LSL2Converter" to convert LSL to C# if necessary.
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// * Compiles C#-code into an assembly
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// * Returns assembly name ready for AppDomain load.
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//
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// Assembly is compiled using LSL_BaseClass as base. Look at debug C# code file created when LSL script is compiled for full details.
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//
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internal enum enumCompileType
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{
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lsl = 0,
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cs = 1,
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vb = 2,
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js = 3
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}
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/// <summary>
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/// This contains number of lines WE use for header when compiling script. User will get error in line x-LinesToRemoveOnError when error occurs.
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/// </summary>
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public int LinesToRemoveOnError = 3;
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private enumCompileType DefaultCompileLanguage;
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private bool WriteScriptSourceToDebugFile;
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private bool CompileWithDebugInformation;
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private Dictionary<string, bool> AllowedCompilers = new Dictionary<string, bool>(StringComparer.CurrentCultureIgnoreCase);
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private Dictionary<string, enumCompileType> LanguageMapping = new Dictionary<string, enumCompileType>(StringComparer.CurrentCultureIgnoreCase);
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private string FilePrefix;
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private string ScriptEnginesPath = "ScriptEngines";
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private static LSL2CSConverter LSL_Converter = new LSL2CSConverter();
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private static CSharpCodeProvider CScodeProvider = new CSharpCodeProvider();
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private static VBCodeProvider VBcodeProvider = new VBCodeProvider();
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private static JScriptCodeProvider JScodeProvider = new JScriptCodeProvider();
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private static int instanceID = new Random().Next(0, int.MaxValue); // Unique number to use on our compiled files
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private static UInt64 scriptCompileCounter = 0; // And a counter
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public IScriptEngine m_scriptEngine;
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public Compiler(IScriptEngine scriptEngine)
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{
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m_scriptEngine = scriptEngine;
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ReadConfig();
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}
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public bool in_startup = true;
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public void ReadConfig()
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{
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// Get some config
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WriteScriptSourceToDebugFile = m_scriptEngine.Config.GetBoolean("WriteScriptSourceToDebugFile", true);
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CompileWithDebugInformation = m_scriptEngine.Config.GetBoolean("CompileWithDebugInformation", true);
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// Get file prefix from scriptengine name and make it file system safe:
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FilePrefix = "CommonCompiler";
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foreach (char c in Path.GetInvalidFileNameChars())
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{
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FilePrefix = FilePrefix.Replace(c, '_');
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}
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// First time we start? Delete old files
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if (in_startup)
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{
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in_startup = false;
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DeleteOldFiles();
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}
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// Map name and enum type of our supported languages
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LanguageMapping.Add(enumCompileType.cs.ToString(), enumCompileType.cs);
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LanguageMapping.Add(enumCompileType.vb.ToString(), enumCompileType.vb);
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LanguageMapping.Add(enumCompileType.lsl.ToString(), enumCompileType.lsl);
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LanguageMapping.Add(enumCompileType.js.ToString(), enumCompileType.js);
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// Allowed compilers
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string allowComp = m_scriptEngine.Config.GetString("AllowedCompilers", "lsl,cs,vb,js");
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AllowedCompilers.Clear();
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#if DEBUG
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m_scriptEngine.Log.Debug("[Compiler]: Allowed languages: " + allowComp);
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#endif
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foreach (string strl in allowComp.Split(','))
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{
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string strlan = strl.Trim(" \t".ToCharArray()).ToLower();
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if (!LanguageMapping.ContainsKey(strlan))
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{
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m_scriptEngine.Log.Error("[Compiler]: Config error. Compiler is unable to recognize language type \"" + strlan + "\" specified in \"AllowedCompilers\".");
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}
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else
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{
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#if DEBUG
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//m_scriptEngine.Log.Debug("[Compiler]: Config OK. Compiler recognized language type \"" + strlan + "\" specified in \"AllowedCompilers\".");
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#endif
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}
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AllowedCompilers.Add(strlan, true);
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}
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if (AllowedCompilers.Count == 0)
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m_scriptEngine.Log.Error("[Compiler]: Config error. Compiler could not recognize any language in \"AllowedCompilers\". Scripts will not be executed!");
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// Default language
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string defaultCompileLanguage = m_scriptEngine.Config.GetString("DefaultCompileLanguage", "lsl").ToLower();
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// Is this language recognized at all?
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if (!LanguageMapping.ContainsKey(defaultCompileLanguage))
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{
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m_scriptEngine.Log.Error("[Compiler]: " +
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"Config error. Default language \"" + defaultCompileLanguage + "\" specified in \"DefaultCompileLanguage\" is not recognized as a valid language. Changing default to: \"lsl\".");
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defaultCompileLanguage = "lsl";
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}
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// Is this language in allow-list?
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if (!AllowedCompilers.ContainsKey(defaultCompileLanguage))
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{
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m_scriptEngine.Log.Error("[Compiler]: " +
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"Config error. Default language \"" + defaultCompileLanguage + "\"specified in \"DefaultCompileLanguage\" is not in list of \"AllowedCompilers\". Scripts may not be executed!");
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}
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else
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{
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#if DEBUG
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// m_scriptEngine.Log.Debug("[Compiler]: " +
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// "Config OK. Default language \"" + defaultCompileLanguage + "\" specified in \"DefaultCompileLanguage\" is recognized as a valid language.");
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#endif
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// LANGUAGE IS IN ALLOW-LIST
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DefaultCompileLanguage = LanguageMapping[defaultCompileLanguage];
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}
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// We now have an allow-list, a mapping list, and a default language
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}
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/// <summary>
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/// Delete old script files
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/// </summary>
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private void DeleteOldFiles()
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{
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// CREATE FOLDER IF IT DOESNT EXIST
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if (!Directory.Exists(ScriptEnginesPath))
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{
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try
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{
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Directory.CreateDirectory(ScriptEnginesPath);
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}
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catch (Exception ex)
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{
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m_scriptEngine.Log.Error("[Compiler]: Exception trying to create ScriptEngine directory \"" + ScriptEnginesPath + "\": " + ex.ToString());
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}
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}
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if (!Directory.Exists(Path.Combine(ScriptEnginesPath,
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m_scriptEngine.World.RegionInfo.RegionID.ToString())))
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{
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try
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{
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Directory.CreateDirectory(Path.Combine(ScriptEnginesPath,
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m_scriptEngine.World.RegionInfo.RegionID.ToString()));
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}
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catch (Exception ex)
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{
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m_scriptEngine.Log.Error("[Compiler]: Exception trying to create ScriptEngine directory \"" + Path.Combine(ScriptEnginesPath,
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m_scriptEngine.World.RegionInfo.RegionID.ToString())+ "\": " + ex.ToString());
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}
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}
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foreach (string file in Directory.GetFiles(Path.Combine(ScriptEnginesPath,
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m_scriptEngine.World.RegionInfo.RegionID.ToString())))
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{
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//m_scriptEngine.Log.Error("[Compiler]: FILE FOUND: " + file);
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if (file.ToLower().StartsWith(FilePrefix + "_compiled_") ||
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file.ToLower().StartsWith(FilePrefix + "_source_"))
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{
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try
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{
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File.Delete(file);
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}
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catch (Exception ex)
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{
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m_scriptEngine.Log.Error("[Compiler]: Exception trying delete old script file \"" + file + "\": " + ex.ToString());
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}
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}
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}
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}
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////private ICodeCompiler icc = codeProvider.CreateCompiler();
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//public string CompileFromFile(string LSOFileName)
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//{
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// switch (Path.GetExtension(LSOFileName).ToLower())
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// {
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// case ".txt":
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// case ".lsl":
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// Common.ScriptEngineBase.Shared.SendToDebug("Source code is LSL, converting to CS");
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// return CompileFromLSLText(File.ReadAllText(LSOFileName));
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// case ".cs":
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// Common.ScriptEngineBase.Shared.SendToDebug("Source code is CS");
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// return CompileFromCSText(File.ReadAllText(LSOFileName));
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// default:
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// throw new Exception("Unknown script type.");
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// }
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//}
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/// <summary>
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/// Converts script from LSL to CS and calls CompileFromCSText
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/// </summary>
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/// <param name="Script">LSL script</param>
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/// <returns>Filename to .dll assembly</returns>
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public string PerformScriptCompile(string Script, string asset)
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{
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string OutFile = Path.Combine(ScriptEnginesPath, Path.Combine(
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m_scriptEngine.World.RegionInfo.RegionID.ToString(),
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FilePrefix + "_compiled_" + asset + ".dll"));
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// string OutFile = Path.Combine(ScriptEnginesPath,
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// FilePrefix + "_compiled_" + asset + ".dll");
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if (File.Exists(OutFile))
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{
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m_scriptEngine.Log.DebugFormat("[Compiler] Returning existing assembly for {0}", asset);
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return OutFile;
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}
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if (!Directory.Exists(ScriptEnginesPath))
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{
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try
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{
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Directory.CreateDirectory(ScriptEnginesPath);
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}
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catch (Exception ex)
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{
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}
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}
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if (!Directory.Exists(Path.Combine(ScriptEnginesPath,
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m_scriptEngine.World.RegionInfo.RegionID.ToString())))
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{
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try
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{
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Directory.CreateDirectory(ScriptEnginesPath);
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}
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catch (Exception ex)
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{
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}
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}
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enumCompileType l = DefaultCompileLanguage;
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if (Script.StartsWith("//c#", true, CultureInfo.InvariantCulture))
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l = enumCompileType.cs;
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if (Script.StartsWith("//vb", true, CultureInfo.InvariantCulture))
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{
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l = enumCompileType.vb;
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// We need to remove //vb, it won't compile with that
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Script = Script.Substring(4, Script.Length - 4);
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}
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if (Script.StartsWith("//lsl", true, CultureInfo.InvariantCulture))
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l = enumCompileType.lsl;
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if (Script.StartsWith("//js", true, CultureInfo.InvariantCulture))
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l = enumCompileType.js;
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if (!AllowedCompilers.ContainsKey(l.ToString()))
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{
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// Not allowed to compile to this language!
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string errtext = String.Empty;
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errtext += "The compiler for language \"" + l.ToString() + "\" is not in list of allowed compilers. Script will not be executed!";
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throw new Exception(errtext);
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}
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string compileScript = Script;
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if (l == enumCompileType.lsl)
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{
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// Its LSL, convert it to C#
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compileScript = LSL_Converter.Convert(Script);
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l = enumCompileType.cs;
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}
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// Insert additional assemblies here
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//ADAM: Disabled for the moment until it's working right.
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bool enableCommanderLSL = false;
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if (enableCommanderLSL == true && l == enumCompileType.cs)
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{
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foreach (KeyValuePair<string,
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ICommander> com
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in m_scriptEngine.World.GetCommanders())
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{
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compileScript = com.Value.GenerateRuntimeAPI() + compileScript;
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}
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}
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// End of insert
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switch (l)
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{
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case enumCompileType.cs:
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compileScript = CreateCSCompilerScript(compileScript);
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break;
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case enumCompileType.vb:
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compileScript = CreateVBCompilerScript(compileScript);
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break;
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case enumCompileType.js:
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compileScript = CreateJSCompilerScript(compileScript);
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break;
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}
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// m_log.Debug("[ScriptEngine.DotNetEngine]: Preparing to compile the following LSL to C# translated code");
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// m_log.Debug("");
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// m_log.Debug(compileScript);
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return CompileFromDotNetText(compileScript, l, asset);
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}
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private static string CreateJSCompilerScript(string compileScript)
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{
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compileScript = String.Empty +
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"import OpenSim.Region.ScriptEngine.Shared; import System.Collections.Generic;\r\n" +
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"package SecondLife {\r\n" +
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"class Script extends OpenSim.Region.ScriptEngine.Shared.ScriptBase.ScriptBaseClass { \r\n" +
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compileScript +
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"} }\r\n";
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return compileScript;
|
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}
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private static string CreateCSCompilerScript(string compileScript)
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{
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compileScript = String.Empty +
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"using OpenSim.Region.ScriptEngine.Shared; using System.Collections.Generic;\r\n" +
|
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String.Empty + "namespace SecondLife { " +
|
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String.Empty + "public class Script : OpenSim.Region.ScriptEngine.Shared.ScriptBase.ScriptBaseClass { \r\n" +
|
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@"public Script() { } " +
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compileScript +
|
||||
"} }\r\n";
|
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return compileScript;
|
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}
|
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|
||||
private static string CreateVBCompilerScript(string compileScript)
|
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{
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compileScript = String.Empty +
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"Imports OpenSim.Region.ScriptEngine.Shared: Imports System.Collections.Generic: " +
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String.Empty + "NameSpace SecondLife:" +
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String.Empty + "Public Class Script: Inherits OpenSim.Region.ScriptEngine.Shared.ScriptBase.ScriptBaseClass: " +
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"\r\nPublic Sub New()\r\nEnd Sub: " +
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compileScript +
|
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":End Class :End Namespace\r\n";
|
||||
return compileScript;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Compile .NET script to .Net assembly (.dll)
|
||||
/// </summary>
|
||||
/// <param name="Script">CS script</param>
|
||||
/// <returns>Filename to .dll assembly</returns>
|
||||
internal string CompileFromDotNetText(string Script, enumCompileType lang, string asset)
|
||||
{
|
||||
string ext = "." + lang.ToString();
|
||||
|
||||
// Output assembly name
|
||||
scriptCompileCounter++;
|
||||
string OutFile = Path.Combine(ScriptEnginesPath, Path.Combine(
|
||||
m_scriptEngine.World.RegionInfo.RegionID.ToString(),
|
||||
FilePrefix + "_compiled_" + asset + ".dll"));
|
||||
#if DEBUG
|
||||
// m_scriptEngine.Log.Debug("[Compiler]: Starting compile of \"" + OutFile + "\".");
|
||||
#endif
|
||||
try
|
||||
{
|
||||
File.Delete(OutFile);
|
||||
}
|
||||
catch (Exception e) // NOTLEGIT - Should be just catching FileIOException
|
||||
{
|
||||
//m_scriptEngine.Log.Error("[Compiler]: Unable to delete old existring script-file before writing new. Compile aborted: " + e.ToString());
|
||||
throw new Exception("Unable to delete old existring script-file before writing new. Compile aborted: " + e.ToString());
|
||||
}
|
||||
//string OutFile = Path.Combine("ScriptEngines", "SecondLife.Script.dll");
|
||||
|
||||
// DEBUG - write source to disk
|
||||
if (WriteScriptSourceToDebugFile)
|
||||
{
|
||||
string srcFileName = FilePrefix + "_source_" + Path.GetFileNameWithoutExtension(OutFile) + ext;
|
||||
try
|
||||
{
|
||||
File.WriteAllText(Path.Combine(Path.Combine(
|
||||
ScriptEnginesPath,
|
||||
m_scriptEngine.World.RegionInfo.RegionID.ToString()),
|
||||
srcFileName), Script);
|
||||
}
|
||||
catch (Exception ex) // NOTLEGIT - Should be just catching FileIOException
|
||||
{
|
||||
m_scriptEngine.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;
|
||||
|
||||
// Add all available assemblies
|
||||
// foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
|
||||
// {
|
||||
// Console.WriteLine("Adding assembly: " + asm.Location);
|
||||
// parameters.ReferencedAssemblies.Add(asm.Location);
|
||||
// }
|
||||
|
||||
string rootPath = Path.GetDirectoryName(AppDomain.CurrentDomain.BaseDirectory);
|
||||
string rootPathSE = Path.GetDirectoryName(GetType().Assembly.Location);
|
||||
//Console.WriteLine("Assembly location: " + rootPath);
|
||||
parameters.ReferencedAssemblies.Add(Path.Combine(rootPath, "OpenSim.Region.ScriptEngine.Shared.dll"));
|
||||
parameters.ReferencedAssemblies.Add(Path.Combine(rootPath, "OpenSim.Region.ScriptEngine.Shared.Api.Runtime.dll"));
|
||||
|
||||
parameters.GenerateExecutable = false;
|
||||
parameters.OutputAssembly = OutFile;
|
||||
parameters.IncludeDebugInformation = CompileWithDebugInformation;
|
||||
//parameters.WarningLevel = 1; // Should be 4?
|
||||
parameters.TreatWarningsAsErrors = false;
|
||||
|
||||
//Console.WriteLine(Script);
|
||||
CompilerResults results;
|
||||
switch (lang)
|
||||
{
|
||||
case enumCompileType.vb:
|
||||
results = VBcodeProvider.CompileAssemblyFromSource(parameters, Script);
|
||||
break;
|
||||
case enumCompileType.cs:
|
||||
results = CScodeProvider.CompileAssemblyFromSource(parameters, Script);
|
||||
break;
|
||||
case enumCompileType.js:
|
||||
results = JScodeProvider.CompileAssemblyFromSource(parameters, Script);
|
||||
break;
|
||||
default:
|
||||
throw new Exception("Compiler is not able to recongnize language type \"" + lang.ToString() + "\"");
|
||||
}
|
||||
|
||||
// Check result
|
||||
// Go through errors
|
||||
|
||||
//
|
||||
// WARNINGS AND ERRORS
|
||||
//
|
||||
if (results.Errors.Count > 0)
|
||||
{
|
||||
string errtext = String.Empty;
|
||||
foreach (CompilerError CompErr in results.Errors)
|
||||
{
|
||||
errtext += "Line number " + (CompErr.Line - LinesToRemoveOnError) +
|
||||
", Error Number: " + CompErr.ErrorNumber +
|
||||
", '" + CompErr.ErrorText + "'\r\n";
|
||||
}
|
||||
if (!File.Exists(OutFile))
|
||||
{
|
||||
throw new Exception(errtext);
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// NO ERRORS, BUT NO COMPILED FILE
|
||||
//
|
||||
if (!File.Exists(OutFile))
|
||||
{
|
||||
string errtext = String.Empty;
|
||||
errtext += "No compile error. But not able to locate compiled file.";
|
||||
throw new Exception(errtext);
|
||||
}
|
||||
m_scriptEngine.Log.DebugFormat("[Compiler] Compiled new assembly for {0}", asset);
|
||||
return OutFile;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user