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261 lines (203 loc) · 8.14 KB
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using Celeste.Mod;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Monocle;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace Celeste.Mod.Ghost.Net {
public abstract class GhostNetCommand {
public readonly static char[] CommandNameDelimiters = {
' ', '\n'
};
public abstract string Name { get; set; }
public abstract string Args { get; set; }
public abstract string Help { get; set; }
public virtual void Parse(GhostNetCommandEnv env) {
string raw = env.Text;
int index = GhostNetModule.Settings.ServerCommandPrefix.Length + Name.Length - 1; // - 1 because next space required
List<GhostNetCommandArg> args = new List<GhostNetCommandArg>();
while (
index + 1 < raw.Length &&
(index = raw.IndexOf(' ', index + 1)) >= 0
) {
int next = index + 1 < raw.Length ? raw.IndexOf(' ', index + 1) : -2;
if (next < 0) next = raw.Length;
int argIndex = index + 1;
int argLength = next - index - 1;
string argString = raw.Substring(argIndex, argLength);
// + 1 because space
args.Add(new GhostNetCommandArg(env).Parse(raw, argIndex, argLength));
// Parse a range
if (args.Count >= 3 &&
args[args.Count - 3].Type == GhostNetCommandArg.EType.Int &&
(args[args.Count - 2].String == "-" || args[args.Count - 2].String == "+") &&
args[args.Count - 1].Type == GhostNetCommandArg.EType.Int
) {
args.Add(new GhostNetCommandArg(env).Parse(raw, args[args.Count - 3].Index, next - args[args.Count - 3].Index));
args.RemoveRange(args.Count - 4, 3);
continue;
}
}
Run(env, args.ToArray());
}
public virtual void Run(GhostNetCommandEnv env, params GhostNetCommandArg[] args) {
}
}
public class GhostNetDCommand : GhostNetCommand {
public override string Name { get; set; }
public override string Args { get; set; }
public override string Help { get; set; }
public Action<GhostNetCommand, GhostNetCommandEnv> OnParse;
public override void Parse(GhostNetCommandEnv env) {
if (OnParse != null) {
OnParse(this, env);
return;
}
base.Parse(env);
}
public Action<GhostNetCommand, GhostNetCommandEnv, GhostNetCommandArg[]> OnRun;
public override void Run(GhostNetCommandEnv env, params GhostNetCommandArg[] args)
=> OnRun(this, env, args);
public static class Parsers {
/// <summary>
/// Parse everything as one argument and run the command.
/// </summary>
public static void Everything(GhostNetCommand cmd, GhostNetCommandEnv env)
=> cmd.Run(env, new GhostNetCommandArg(env).Parse(env.Text, GhostNetModule.Settings.ServerCommandPrefix.Length + cmd.Name.Length + 1));
}
}
public class GhostNetCommandArg {
public GhostNetCommandEnv Env;
public string RawText;
public string String;
public int Index;
public EType Type;
public int Int;
public long Long;
public ulong ULong;
public float Float;
public int IntRangeFrom;
public int IntRangeTo;
public int IntRangeMin => Math.Min(IntRangeFrom, IntRangeTo);
public int IntRangeMax => Math.Max(IntRangeFrom, IntRangeTo);
public GhostNetConnection Connection {
get {
if (Type != EType.Int)
throw new Exception("Argument not an ID!");
if (Int < 0 || Env.Server.Connections.Count <= Int)
throw new Exception("ID out of range!");
GhostNetConnection con = Env.Server.Connections[Int];
if (con == null)
throw new Exception("ID already disconnected!");
return con;
}
}
public ChunkMPlayer Player {
get {
if (Type != EType.Int)
throw new Exception("Argument not an ID!");
if (Int < 0 || Env.Server.Connections.Count <= Int)
throw new Exception("ID out of range!");
ChunkMPlayer player;
if (!Env.Server.PlayerMap.TryGetValue((uint) Int, out player) || player == null)
throw new Exception("ID already disconnected!");
return player;
}
}
public GhostNetCommandArg(GhostNetCommandEnv env) {
Env = env;
}
public virtual GhostNetCommandArg Parse(string raw, int index) {
RawText = raw;
if (index < 0 || raw.Length <= index) {
String = "";
Index = 0;
return this;
}
String = raw.Substring(index);
Index = index;
return Parse();
}
public virtual GhostNetCommandArg Parse(string raw, int index, int length) {
RawText = raw;
String = raw.Substring(index, length);
Index = index;
return Parse();
}
public virtual GhostNetCommandArg Parse() {
if (int.TryParse(String, out Int)) {
Type = EType.Int;
Long = IntRangeFrom = IntRangeTo = Int;
ULong = (ulong) Int;
} else if (long.TryParse(String, out Long)) {
Type = EType.Long;
ULong = (ulong) Long;
} else if (ulong.TryParse(String, out ULong)) {
Type = EType.ULong;
} else if (float.TryParse(String, out Float)) {
Type = EType.Float;
}
if (Type == EType.String) {
string[] split;
int from, to;
if ((split = String.Split('-')).Length == 2) {
if (int.TryParse(split[0].Trim(), out from) && int.TryParse(split[1].Trim(), out to)) {
Type = EType.IntRange;
IntRangeFrom = from;
IntRangeTo = to;
}
} else if ((split = String.Split('+')).Length == 2) {
if (int.TryParse(split[0].Trim(), out from) && int.TryParse(split[1].Trim(), out to)) {
Type = EType.IntRange;
IntRangeFrom = from;
IntRangeTo = from + to;
}
}
}
return this;
}
public string Restored {
get {
return RawText.Substring(Index);
}
}
public override string ToString() {
return String;
}
public static implicit operator string(GhostNetCommandArg d) {
return d.String;
}
public enum EType {
String,
Int,
IntRange,
Long,
ULong,
Float,
}
}
public struct GhostNetCommandEnv {
public GhostNetServer Server;
public GhostNetConnection Connection;
public GhostNetFrame Frame;
public uint PlayerID => Frame.HHead.PlayerID;
public bool IsOP => Server.OPs.Contains(PlayerID);
public ChunkHHead HHead => Frame.HHead;
public ChunkMPlayer MPlayer => Frame.MPlayer;
public ChunkMChat MChat => Frame.Get<ChunkMChat>();
public string Text => MChat?.Text;
public ChunkMChat Send(string text, string tag = null, Color? color = null, bool fillVars = false)
=> Server.SendMChat(Connection, Frame, text, tag, color, fillVars);
}
public class GhostNetCommandFieldAttribute : Attribute {
}
}