public override void BuildSignature()
{
if (isSignatureBuilt)
{
return;
}
Program.Log(LogLevel.NOR, "Building Signature for Packet[" + Header.PadRight(4, ' ') + "][" + Desc + "]");
bool doesSubcatePlaceholderAppeared = false;
bool packetBodySectionEnded = false;
bool isInSubcate = false;
bool isRepeatableTagEnded = true;
string tmpSignature = ""; // subcate is not replaced yet
JArray infoBeforeSubcate = new JArray();
JArray infoAfterSubcate = new JArray();
dynamic tmpObj = new JObject();
string tmpSubcateSignature = "";
JArray tmpSubcateInfo = new JArray();
foreach (var(num, code) in Lines)
{
var(sign, infos) = ParseSignatureLine(code);
Program.CurrentLine = num;
if (infos != null)
{
if (isInSubcate)
{
tmpSubcateSignature += " " + sign;
tmpSubcateInfo.Add(infos);
}
else
{
tmpSignature += " " + sign;
if (doesSubcatePlaceholderAppeared)
{
infoAfterSubcate.Add(infos);
}
else
{
infoBeforeSubcate.Add(infos);
}
}
}
else
{
if (code.StartsWith("+ Fragment"))
{
var obj = Fragment.GetFragmentByCode(code);
tmpSignature += " " + obj.Signature;
// add range
obj.Infos.ForEach(info => infoBeforeSubcate.Add(info));
}
else if (code.StartsWith("+ SubCate"))
{
// set constraint, only 1 subcate code can be used
if (doesSubcatePlaceholderAppeared)
{
Program.Log(LogLevel.ERR | LogLevel.EXIT,
"Constraint Violation - You can only use 1 \"+ SubCate\" within same packet/fragment.",
"Occurred within: Packet[" + Header.PadRight(4, ' ') + "] " + Desc
);
}
else if (packetBodySectionEnded)
{
Program.Log(LogLevel.ERR | LogLevel.EXIT,
"Constraint Violation - You cannot include another subcate within a subcate.",
"Occurred within: Packet[" + Header.PadRight(4, ' ') + "] " + Desc
);
}
tmpSignature += " {SUBCATE}";
doesSubcatePlaceholderAppeared = true;
}
else if (code.StartsWith("SubCate["))
{
// start of subcate signature
var m = regexSubcate.Match(code);
var g = m.Groups;
if (!m.Success || (g[1].Value == "" && g[2].Value == ""))
{
Program.Log(LogLevel.ERR | LogLevel.EXIT,
"Invalid SubCate declaration.",
"Occurred within: Packet[" + Header.PadRight(4, ' ') + "] " + Desc,
"Captured: [" + string.Join(", ", g.Values) + "]",
"Raw: " + code
);
}
// have subcate before this subcate (another)
// push the previous subcate to dict list
if (isInSubcate)
{
if (tmpSignature == "")
{
Program.Log(LogLevel.WARN,
"Skipped invalid SubCate declaration - No actual signature/body.",
"Occurred within: Packet[" + Header.PadRight(4, ' ') + "] " + Desc
);
}
else
{
subcate.Add(tmpSubcateSignature.TrimStart(), tmpObj);
}
}
tmpObj = new JObject(); // renew
tmpObj.desc = g[1].Value;
tmpObj["params"] = tmpSubcateInfo = new JArray();
tmpSubcateSignature = "";
if (g[2].Value != "")
{
// with hex-byte (static hex subcate signature)
tmpSubcateSignature += " " + g[2].Value[1..];
static void Main(string[] cmdArgs)
{
Version version = Assembly.GetExecutingAssembly().GetName().Version;
AssemblyDescriptionAttribute releaseDate = (AssemblyDescriptionAttribute)Attribute.GetCustomAttribute(Assembly.GetExecutingAssembly(), typeof(AssemblyDescriptionAttribute));
Console.WriteLine($"============== Signature Builder - For Parser rev5 ==============\r\n" +
$"\t+ Build: {version} [{releaseDate.Description}]\r\n\r\n");
var file = (cmdArgs.Length >= 1 ? cmdArgs[0] : ".") + "/parser.txt";
var outFile = (cmdArgs.Length >= 2 ? cmdArgs[1] : ".") + "/_pkts.v5.ignore.json";
if (!System.IO.File.Exists(file))
{
Log(LogLevel.ERR | LogLevel.EXIT, "File not found @ " + file);
}
string[] lines = System.IO.File.ReadAllLines(file);
/* Example of the built output (JSON):
* {
* // layer 1 - packet header bytes (AKA: delimiter)
* "6F": {
* // layer 2 - packet infos
* "name": "Hero Effect", // - packet main name
* "signature": {
* // layer 3 - packet signature (determines all the variants of packet body)
* "$4 [REPS] $4 $1 $1 [REPE]": {
* // layer 4 - infos of the matched packet signature
* "desc": "", - description of this packet signature
* "params": [ // - infos of each param(data) in the packet signature
* { "name": "HeroID" }, // dict<string, dynamic>
* { "name": "EffectID", "func": ["eHeroEffect", ] },
* // more data ...
* ]
* }
* }
* }
* }*/
bool parserSectionStart = false;
ParserCode obj = null;
foreach (string tmp in lines)
{
++CurrentLine;
var line = tmp.Replace("/// ", "").Trim();
if (line == "" || line.StartsWith("//"))
{
continue;
}
// split the actual code, remove comment (//) part.
if (line.Contains("//"))
{
line = line.Split("//")[0].Trim();
}
if (line == "<parser>")
{
// start of parser tag
parserSectionStart = true;
continue;
}
else if (line == "</parser>")
{
// end of parser tag
parserSectionStart = false;
obj = null;
continue;
}
if (!parserSectionStart)
{
// </parser> exists before but no start tag after that.
Log(LogLevel.ERR | LogLevel.EXIT,
"Unexpected line outside <parser> tag.",
"Raw: " + line
);
}
if (line.StartsWith("Fragment["))
{
var m = ParserCode.regexFrag.Match(line).Groups;
if (m[1].Value == "")
{
Log(LogLevel.ERR | LogLevel.EXIT,
"Malform Fragment declaration found.",
"Captured: [" + string.Join(", ", m) + "]",
"Raw: " + line
);
}
var frag = new Fragment(m[1].Value);
if (!Fragment.FragmentPool.TryAdd(frag.Name, frag))
{
Log(LogLevel.ERR | LogLevel.EXIT,
"Failed to declare Fragment.",
"Fragment Name: " + frag.Name,
"Raw: " + line
);
}
Log(LogLevel.NOR, $"New Fragment[{frag.Name}]");
obj = frag;
}
else if (line.StartsWith("Packet["))
{
// packet declaration
var m = ParserCode.regexPkt.Match(line).Groups;
if (m[1].Value == "" || m[2].Value == "")
{
Log(LogLevel.WARN,
$"Skipped mismatch Packet Declaration",
"Captured: {" + string.Join(", ", m) + "}",
"Raw: " + line
);
continue;
}
var pkt = new Packet(m[1].Value, m[2].Value.ToUpper());
if (!Packet.PacketPool.TryAdd(pkt.Header, pkt))
{
Log(LogLevel.ERR | LogLevel.EXIT, $"Duplicated Packet Header[{pkt.Header}]");
}
Log(LogLevel.NOR, $"New Packet[{pkt.Header,-4}] Desc[{pkt.Desc}]");
obj = pkt;
}
else
{
if (obj == null)
{
Log(LogLevel.ERR | LogLevel.EXIT,
"Unexpected line before Packet / Fragment declaration.",
"Raw: " + line
);
}
// push to obj's List for further parsing.
obj.AddLine(CurrentLine, line);
}
}
Console.WriteLine("");
// loop all objects to do parsing
//Fragment.FragmentPool.Values.ToArray()[1].BuildSignature();
JObject mainDict = new JObject();
Fragment.FragmentPool.Values.ToList().ForEach(frag => frag.BuildSignature());
Packet.PacketPool.Values.ToList().ForEach(pkt =>
{
pkt.BuildSignature();
mainDict.Add(pkt.Header, new JObject {
{ "desc", pkt.Desc },
{ "signature", pkt.Signatures }
});
});
// add version & timestamp
mainDict.Add("_timestamp", DateTimeOffset.UtcNow.ToUnixTimeSeconds() * 1000);
mainDict.Add("_builder", new JArray {
releaseDate.Description.Split(" ")[0], "build " + version, "5"
});
System.IO.File.WriteAllText(outFile, JsonConvert.SerializeObject(mainDict));
Console.WriteLine("");
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("[+] Build Success! Output File: " + outFile);
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("\nPress any key to exit.");
Console.ReadKey();
}