private void LoadSharedScripts(V8ScriptEngine context, bool precompileOnly)
{
if (SharedScripts == null)
{
return;
}
foreach (var script in SharedScripts)
{
try
{
if (precompileOnly)
{
context.Compile(script.Content, V8CacheKind.Code, out byte[] cache);
script.CompiledCache = cache;
}
else
{
V8Script v8Script = context.Compile(script.Content, V8CacheKind.Code, script.CompiledCache, out bool accepted);
context.Execute(v8Script);
}
}
catch (Exception ex)
{
logger.ErrorFormat("Script: Shared script failed to run. {0}. {1}", script.Name, ex.Message);
throw;
}
}
}
static void ProcessScript(String sFunc, String sHdrFile, String sDtlFile)
{
String sFileResult = Path.GetFileNameWithoutExtension(sDtlFile) + "-result.js";
String sHdrScript = File.ReadAllText(sHdrFile);
String sRScript = File.ReadAllText(sDtlFile);
V8ScriptEngine v8 = new V8ScriptEngine();
V8Script myScript = v8.Compile(sHdrScript);
v8.Execute(myScript);
String sRegex = "(" + sFunc + @"\(\'0[xX][0-9A-Fa-f]+\'\))";
MatchCollection arMatches = Regex.Matches(sRScript, sRegex);
int nI;
String sMatchVal, sRes;
for (nI = 0; nI < arMatches.Count; nI++)
{
sMatchVal = arMatches[nI].Value;
Console.WriteLine("Processing " + sMatchVal + " ...");
sRes = v8.ExecuteCommand(sMatchVal);
sRScript = sRScript.Replace(arMatches[nI].Value, "\"" + sRes + "\"");
}
v8.Dispose();
File.WriteAllText(sFileResult, sRScript);
return;
}
/// <summary>
/// Assumes layout has been already applied
/// Note: method mutates graph and graphLayout
/// </summary>
public void ImproveAppliedLayout(SigmaGraphModel graph, GraphLayout graphLayout, LayoutSettings layoutSettings, TimeSpan duration)
{
using (var engine = new V8ScriptEngine())
{
try
{
var v8Graph = new V8GraphModel();
v8Graph.LoadSigma(graph);
engine.AddHostObject("log", _log);
engine.Execute("var graph = " + JsonConvention.SerializeObject(v8Graph) + ";");
engine.Execute("var settings = " + JsonConvention.SerializeObject(layoutSettings) + ";");
engine.Execute("var duration = " + JsonConvention.SerializeObject(duration.TotalMilliseconds) + ";");
var baseDirectory = AppDomain.CurrentDomain.BaseDirectory;
var forceAtlas2 = engine.Compile(File.ReadAllText($@"{baseDirectory}\App\Graph\Layout\ForceAtlas2.js"));
var serviceScript = engine.Compile(File.ReadAllText($@"{baseDirectory}\App\Graph\Layout\GraphLayoutService.js"));
engine.Execute(forceAtlas2);
engine.Execute(serviceScript);
var nodesJson = engine.Evaluate("JSON.stringify(nodes)").ToString();
var nodes = JsonConvention.DeserializeObject <V8NodeModel[]>(nodesJson);
for (int i = 0; i < nodes.Length; i++)
{
var node = graph.Nodes[i];
node.X = nodes[i].x;
node.Y = nodes[i].y;
var id = node.Entity;
if (id.HasValue)
{
graphLayout[id.Value] = new GraphLayout.Coords()
{
X = nodes[i].x,
Y = nodes[i].y
};
}
}
}
catch (ScriptEngineException e)
{
_log.Error("V8 exception: " + e.ErrorDetails);
throw;
}
}
}
public void BugFix_V8CompiledScriptDispose()
{
V8Script script1;
using (var tempEngine = new V8ScriptEngine(V8ScriptEngineFlags.EnableDebugging))
{
script1 = tempEngine.Compile("(function () { return 123; })()");
Assert.AreEqual(123, tempEngine.Evaluate(script1));
V8Script script2 = tempEngine.Compile("(function () { return 456; })()");
using (script2)
{
Assert.AreEqual(456, tempEngine.Evaluate(script2));
}
}
using (script1)
{
}
}
public void BugFix_Resurrection_V8Script()
{
for (var index = 0; index < 256; index++)
{
// ReSharper disable UnusedVariable
var tempEngine = new V8ScriptEngine();
var wrapper = new ResurrectionTestWrapper(tempEngine.Compile("function foo() {}"));
GC.Collect();
// ReSharper restore UnusedVariable
}
}
public void BugFix_V8CompiledScriptWeakBinding()
{
// This test verifies that V8 compiled scripts no longer prevent their isolates from
// being destroyed. Previously it exhausted address space and crashed in 32-bit mode.
for (var i = 0; i < 128; i++)
{
using (var tempEngine = new V8ScriptEngine(V8ScriptEngineFlags.EnableDebugging))
{
tempEngine.Compile("(function () {}).valueOf()");
}
}
}
public static object RunJS_V8()
{
using (var engine = new V8ScriptEngine())
{
var f = "test.js";
var code = File.ReadAllText(f);
engine.Compile(code);
engine.AddHostType("Console", typeof(Console));
engine.Execute("Console.WriteLine('{0} is an interesting number.', Math.PI)");
engine.AddHostType("Console", typeof(Console));
engine.Evaluate("Console.debug('faasfafa')");
var res = engine.Evaluate("test(fsfs)");
Console.WriteLine(res);
}
return(null);
}
internal void Init()
{
Dispose();
V8ScriptEngineFlags flags = V8ScriptEngineFlags.None;
#if DEBUG
flags |= V8ScriptEngineFlags.EnableDebugging;
flags |= V8ScriptEngineFlags.EnableRemoteDebugging;
#endif
scriptEngine = new V8ScriptEngine(flags);
loadedScripts = new HashSet <string>();
scriptEngine.AddHostObject("Engine", new GameEngineProxy(this));
LoadScript("src/Init.js");
scriptEngine.Execute("Init()");
executeScript = scriptEngine.Compile("Execute(Engine.Input);");
}
private void compileScript(string src, Dictionary <string, object> hostObjects = null)
{
Ok = false;
engine = new V8ScriptEngine();
code = engine.Compile(src);
if (hostObjects != null)
{
foreach (var kvp in hostObjects)
{
engine.AddHostObject(kvp.Key, kvp.Value);
}
}
engine.Execute(code);
Ok = true;
}
public string[] ValidateTemplate(string code)
{
using var engine = new V8ScriptEngine(V8ScriptEngineFlags.EnableDynamicModuleImports);
try
{
engine.Compile(new DocumentInfo("main")
{
Category = ModuleCategory.Standard
}, code);
return(Array.Empty <string>());
}
catch (ScriptEngineException e)
{
return(new[] { e.ErrorDetails });
}
}
static void Testing()
{
Console.WriteLine("Testing Here");
V8ScriptEngine v8 = new V8ScriptEngine();
String sScript = File.ReadAllText("header.js");
String sRScript = File.ReadAllText("detail.js");
String sFunc = "_0xfec0";
//Console.WriteLine(sScript);
V8Script myScript = v8.Compile(sScript);
v8.Execute(myScript);
//find certain pattern in the
String sTest = v8.ExecuteCommand("_0xfec0('0x0')");
Console.WriteLine("OK " + sTest);
sTest = v8.ExecuteCommand("_0xfec0('0x1')");
Console.WriteLine("OK " + sTest);
sTest = v8.ExecuteCommand("_0xfec0('0x2')");
Console.WriteLine("OK " + sTest);
v8.Dispose();
}
/// <summary>
/// Executes a script in context of a discord reply
/// </summary>
/// <param name="scriptName">The name of the action that executes this script.</param>
/// <param name="script">The script source code</param>
/// <param name="c">CommandContext of the issued discord command</param>
/// <param name="player">Player object of the user that issues the command</param>
/// <param name="m">The message that the bot sent as a reply</param>
/// <returns></returns>
public static async Task RunDiscordScriptAsync(string scriptName, string script, CommandContext c, Player player, DiscordMessage m)
{
await Task.Run(() =>
{
using (var engine = new V8ScriptEngine())
{
if (engine.Compile(script, V8CacheKind.Parser, out byte[] cacheBytes) == null)
{
c.RespondAsync($"A exception occured while compiling the {scriptName} action script.");
return;
}
using (var compiled = engine.Compile(script, V8CacheKind.Parser, cacheBytes, out bool cacheAccepted))
{
if (cacheAccepted)
{
Log.Debug("Using script cache for {scriptname}", scriptName);
}
engine.AddHostObject("Realm", new ScriptContext(player, c, m));
engine.AddHostType(typeof(DiscordMessage));
engine.AddHostType(typeof(CommandContext));
engine.AddHostType(typeof(DiscordEmoji));
engine.AddHostObject("Discord", new HostTypeCollection("DSharpPlus", "DSharpPlus.CommandsNext", "DSharpPlus.Interactivity"));
try
{
engine.Execute(compiled);
}
catch (ScriptEngineException e)
{
Log.Error(e, "Scripting Exception");
c.RespondAsync($"A exception occured while running the {scriptName} action script: {e.Message}");
}
}
}
public void BugFix_V8CompiledScriptDispose()
{
V8Script script1;
using (var tempEngine = new V8ScriptEngine(V8ScriptEngineFlags.EnableDebugging))
{
script1 = tempEngine.Compile("(function () { return 123; })()");
Assert.AreEqual(123, tempEngine.Evaluate(script1));
V8Script script2 = tempEngine.Compile("(function () { return 456; })()");
using (script2)
{
Assert.AreEqual(456, tempEngine.Evaluate(script2));
}
}
using (script1)
{
}
}
public override float[][] Do(float[][] buffer)
{
// TODO: ステレオの両方のチャンネルに対して処理する
using (var engine = new V8ScriptEngine())
{
int BLOCK_SIZE = 8192;
engine.Execute("__mapper = (" + ExpressionCode + ")");
// アルファベットにエンコードすることにより更に約4倍の高速化
var code1 = engine.Compile(
"(function(){" +
#if EXPRESSION_USE_ENCODING_IN
"var __byteArray = new Array(__inputStr.length / 2);\n" +
"for(__i = 0; __i < __inputStr.length / 8; __i++) {\n" +
" __byteArray[__i * 4 + 3] = (__inputStr.charCodeAt(__i * 8 + 0) - 65) * 16 + (__inputStr.charCodeAt(__i * 8 + 1) - 65);\n" +
" __byteArray[__i * 4 + 2] = (__inputStr.charCodeAt(__i * 8 + 2) - 65) * 16 + (__inputStr.charCodeAt(__i * 8 + 3) - 65);\n" +
" __byteArray[__i * 4 + 1] = (__inputStr.charCodeAt(__i * 8 + 4) - 65) * 16 + (__inputStr.charCodeAt(__i * 8 + 5) - 65);\n" +
" __byteArray[__i * 4 + 0] = (__inputStr.charCodeAt(__i * 8 + 6) - 65) * 16 + (__inputStr.charCodeAt(__i * 8 + 7) - 65);\n" +
"}\n" +
"var __inputArray = new Float32Array((new Uint8Array(__byteArray)).buffer);\n" +
#endif
"var __result = new Array(__inputArray.length);\n" +
"for(__j=0;__j<__inputArray.length;__j++){__result[__j]=__mapper(__inputArray[__j]);}\n" +
#if EXPRESSION_USE_ENCODING_OUT
"__byteArray = new Uint8Array((new Float32Array(__result)).buffer);\n" +
"var __outputStr = \"\";\n" +
"for(__i = 0; __i < __result.length; __i++) {\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 3] >> 4) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 3] ) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 2] >> 4) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 2] ) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 1] >> 4) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 1] ) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 0] >> 4) & 0x0F) + 65);\n" +
" __outputStr += String.fromCharCode(((__byteArray[__i * 4 + 0] ) & 0x0F) + 65);\n" +
"}\n" +
"return __outputStr;\n" +
#else
"return __result.join(',');\n" +
#endif
"})()"
);
List <float[]> ret = new List <float[]>();
foreach (var channelOfBuffer in buffer)
{
List <float> wholeResult = new List <float>();
for (int blockId = 0; blockId < (channelOfBuffer.Length - 1) / BLOCK_SIZE + 1; blockId++)
{
int fromInclusive = BLOCK_SIZE * blockId;
int toExclusive = Math.Min(BLOCK_SIZE * (blockId + 1), channelOfBuffer.Length);
var s = new StringBuilder();
#if EXPRESSION_USE_ENCODING_IN
s.Append("__inputStr = \"");
var charbuf = new byte[(toExclusive - fromInclusive) * 8];
for (int i = 0, i4 = 0, i8 = 0; i < toExclusive - fromInclusive; i++, i4 += 4, i8 += 8)
{
var x = channelOfBuffer[i + fromInclusive];
var floatbits = BitConverter.GetBytes(x);
charbuf[i8 + 0] = (byte)(((floatbits[3] >> 4) & 0x0F) + 65);
charbuf[i8 + 1] = (byte)(((floatbits[3] >> 0) & 0x0F) + 65);
charbuf[i8 + 2] = (byte)(((floatbits[2] >> 4) & 0x0F) + 65);
charbuf[i8 + 3] = (byte)(((floatbits[2] >> 0) & 0x0F) + 65);
charbuf[i8 + 4] = (byte)(((floatbits[1] >> 4) & 0x0F) + 65);
charbuf[i8 + 5] = (byte)(((floatbits[1] >> 0) & 0x0F) + 65);
charbuf[i8 + 6] = (byte)(((floatbits[0] >> 4) & 0x0F) + 65);
charbuf[i8 + 7] = (byte)(((floatbits[0] >> 0) & 0x0F) + 65);
}
s.Append(Encoding.ASCII.GetString(charbuf));
s.Append("\";");
#else
s.Append("__inputArray = [");
// 配列ではなく文字列に変換して渡すことにより大幅に高速化
s.Append(string.Join(",", Enumerable.Range(fromInclusive, toExclusive - fromInclusive).Select(i =>
{
var x = channelOfBuffer[i];
if (float.IsNaN(x))
{
return("NaN");
} // ここいる？？
else if (float.IsNegativeInfinity(x))
{
return("-Infinity");
}
else if (float.IsPositiveInfinity(x))
{
return("Infinity");
}
return(x.ToString());
})));
s.Append("];");
#endif
// コンパイルしてもコンパイルしなくてもほとんど同じ時間でした
engine.Execute(engine.Compile(s.ToString()));
dynamic result = engine.Evaluate(code1);
#if EXPRESSION_USE_ENCODING_OUT
string result_s = (string)result;
float[] result3 = new float[toExclusive - fromInclusive];
for (int i = 0; i < toExclusive - fromInclusive; i++)
{
result3[i] = BitConverter.ToSingle(new byte[] {
(byte)((result_s[i * 8 + 6] - 65) * 16 + (result_s[i * 8 + 7] - 65)),
(byte)((result_s[i * 8 + 4] - 65) * 16 + (result_s[i * 8 + 5] - 65)),
(byte)((result_s[i * 8 + 2] - 65) * 16 + (result_s[i * 8 + 3] - 65)),
(byte)((result_s[i * 8 + 0] - 65) * 16 + (result_s[i * 8 + 1] - 65)),
}, 0);
}
#else
float[] result3 = ((string)result).Split(',').Select(x =>
{
if (x == "Infinity")
{
return(float.PositiveInfinity);
}
if (x == "-Infinity")
{
return(float.NegativeInfinity);
}
if (x == "NaN")
{
return(float.NaN);
}
// NaNやInfinityは残さない方が良い気もします・・・
return(float.Parse(x));
}).ToArray();
#endif
wholeResult.AddRange(result3);
}
ret.Add(wholeResult.ToArray());
}
return(ret.ToArray());
}
}
public void Execute(Script script)
{
script.SetExecutionEnvironment(this);
_engine.AddHostObject("script", script);
_engine.AddHostObject("world", ActiveWorld.Active.World);
_engine.AddHostObject("sky", ActiveWorld.Active.Sky);
_engine.AddHostObject("camera", ActiveWorld.Active.Camera);
_engine.Script.print = new Action <Object>(print);
_engine.Script.spawn = new Action <Object>(spawn);
_engine.Script.delay = new Action <Object, double>(delay);
_engine.Script.loop = new Action <Object, double>(loop);
_engine.Script.forLoop = new Action <Object, int, double>(forLoop);
_engine.Script.onRenderStep = new Action <Object>(onRenderStep);
_engine.Script.onStep = new Action <Object>(onStep);
_engine.Script.onKeyPress = new Action <int, Object>(onKeyPress);
_engine.Script.onKeyDown = new Action <int, Object>(onKeyDown);
_engine.Script.onKeyUp = new Action <int, Object>(onKeyUp);
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Math));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Noise));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Random));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Key));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Camera));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Part));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Script));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Sky));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(World));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Vector3));
_engine.AddHostType(HostItemFlags.DirectAccess, typeof(Rotation));
//Allow for reflection on Instance types to access higher concrete implementation properties
_engine.DisableTypeRestriction = true;
_engine.AllowReflection = true;
_engine.SuppressExtensionMethodEnumeration = false;
_engine.UseReflectionBindFallback = true;
_engine.DefaultAccess = ScriptAccess.None;
try
{
V8Script v8Script = _engine.Compile((script.source != null) ? script.source : String.Empty);
_engine.Execute(v8Script);
}
catch (ScriptEngineException e)
{
String errorDetails = e.ErrorDetails;
Match errDetailsMatch = Regex.Match(errorDetails, @"'(?<type>Flex\..*)'");
if (errDetailsMatch.Success)
{
Match match = Regex.Match(errorDetails, @"'Flex\..*.\.(?<class>.+)'");
if (match.Success)
{
errorDetails = errorDetails.Replace(errDetailsMatch.Groups["type"].Value, match.Groups["class"].Value);
}
}
_output.AppendLine(errorDetails);
}
catch (Exception e)
{
_output.AppendLine("[external error] " + e.Message);
}
}
public void BugFix_V8CompiledScriptWeakBinding()
{
// This test verifies that V8 compiled scripts no longer prevent their isolates from
// being destroyed. Previously it exhausted address space and crashed in 32-bit mode.
for (var i = 0; i < 128; i++)
{
using (var tempEngine = new V8ScriptEngine(V8ScriptEngineFlags.EnableDebugging))
{
tempEngine.Compile("(function () {}).valueOf()");
}
}
}
public V8Script CompileScript(string codeScript)
{
V8Script result = m_scriptEngine.Compile(m_currentScriptName, codeScript);
return(result);
}
// Simple engine functions public V8Script Compile(string file, string code) => _engine.Compile(new DocumentInfo(new Uri(file, UriKind.RelativeOrAbsolute)), code);
public void BugFix_Resurrection_V8Script()
{
for (var index = 0; index < 256; index++)
{
// ReSharper disable UnusedVariable
var tempEngine = new V8ScriptEngine();
var wrapper = new ResurrectionTestWrapper(tempEngine.Compile("function foo() {}"));
GC.Collect();
// ReSharper restore UnusedVariable
}
}
