Changed pretty much every context mutation into an event.

Don't run this in prod yet lol.

.editorconfig

@@ -0,0 +1,4 @@
+[*.{cs,vb}]
+
+# IDE0046: Convert to conditional expression
+dotnet_style_prefer_conditional_expression_over_return = false

.gitignore

@@ -1,6 +1,15 @@
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 
+welcome.txt
+mariadb.txt
+login_key.txt
+http-motd.txt
+_webdb.txt
+msz_url.txt
+sharpchat.cfg
+SharpChat/version.txt
+
 # User-specific files
 *.suo
 *.user

Hamakaze/Hamakaze.csproj

@@ -1,7 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
-  </PropertyGroup>
-
-</Project>

Hamakaze/Headers/HttpAcceptEncodingHeader.cs

@@ -1,26 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace Hamakaze.Headers {
-    public class HttpAcceptEncodingHeader : HttpHeader {
-        public const string NAME = @"Accept-Encoding";
-
-        public override string Name => NAME;
-        public override object Value => string.Join(@", ", Encodings);
-
-        public HttpEncoding[] Encodings { get; }
-
-        public HttpAcceptEncodingHeader(string encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-        ) { }
-
-        public HttpAcceptEncodingHeader(string[] encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Select(HttpEncoding.Parse)
-        ) {}
-
-        public HttpAcceptEncodingHeader(IEnumerable<HttpEncoding> encodings) {
-            Encodings = (encodings ?? throw new ArgumentNullException(nameof(encodings))).ToArray();
-        }
-    }
-}

Hamakaze/Headers/HttpConnectionHeader.cs

@@ -1,17 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpConnectionHeader : HttpHeader {
-        public const string NAME = @"Connection";
-
-        public override string Name => NAME;
-        public override object Value { get; }
-
-        public const string CLOSE = @"close";
-        public const string KEEP_ALIVE = @"keep-alive";
-
-        public HttpConnectionHeader(string mode) {
-            Value = mode ?? throw new ArgumentNullException(nameof(mode));
-        }
-    }
-}

Hamakaze/Headers/HttpContentEncodingHeader.cs

@@ -1,20 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpContentEncodingHeader : HttpHeader {
-        public const string NAME = @"Content-Encoding";
-
-        public override string Name => NAME;
-        public override object Value => string.Join(@", ", Encodings);
-
-        public string[] Encodings { get; }
-
-        public HttpContentEncodingHeader(string encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-        ) { }
-
-        public HttpContentEncodingHeader(string[] encodings) {
-            Encodings = encodings ?? throw new ArgumentNullException(nameof(encodings));
-        }
-    }
-}

Hamakaze/Headers/HttpContentLengthHeader.cs

@@ -1,30 +0,0 @@
-using System;
-using System.IO;
-
-namespace Hamakaze.Headers {
-    public class HttpContentLengthHeader : HttpHeader {
-        public const string NAME = @"Content-Length";
-
-        public override string Name => NAME;
-        public override object Value => Stream?.Length ?? Length;
-
-        private Stream Stream { get; }
-        private long Length { get; }
-
-        public HttpContentLengthHeader(Stream stream) {
-            Stream = stream ?? throw new ArgumentNullException(nameof(stream));
-            if(!stream.CanRead || !stream.CanSeek)
-                throw new ArgumentException(@"Body must readable and seekable.", nameof(stream));
-        }
-
-        public HttpContentLengthHeader(long length) {
-            Length = length;
-        }
-
-        public HttpContentLengthHeader(string length) {
-            if(!long.TryParse(length, out long ll))
-                throw new ArgumentException(@"Invalid length value.", nameof(length));
-            Length = ll;
-        }
-    }
-}

Hamakaze/Headers/HttpContentTypeHeader.cs

@@ -1,20 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpContentTypeHeader : HttpHeader {
-        public const string NAME = @"Content-Type";
-
-        public override string Name => NAME;
-        public override object Value => MediaType.ToString();
-
-        public HttpMediaType MediaType { get; }
-
-        public HttpContentTypeHeader(string mediaType) {
-            MediaType = HttpMediaType.Parse(mediaType ?? throw new ArgumentNullException(nameof(mediaType)));
-        }
-
-        public HttpContentTypeHeader(HttpMediaType mediaType) {
-            MediaType = mediaType;
-        }
-    }
-}

Hamakaze/Headers/HttpCustomHeader.cs

@@ -1,13 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpCustomHeader : HttpHeader {
-        public override string Name { get; }
-        public override object Value { get; }
-
-        public HttpCustomHeader(string name, object value) {
-            Name = NormaliseName(name ?? throw new ArgumentNullException(nameof(name)));
-            Value = value;
-        }
-    }
-}

Hamakaze/Headers/HttpDateHeader.cs

@@ -1,18 +0,0 @@
-using System;
-using System.Globalization;
-
-namespace Hamakaze.Headers {
-    public class HttpDateHeader : HttpHeader {
-        public const string NAME = @"Date";
-
-        public override string Name => NAME;
-        public override object Value { get; }
-
-        public DateTimeOffset DateTime { get; }
-
-        public HttpDateHeader(string dateString) {
-            Value = dateString ?? throw new ArgumentNullException(nameof(dateString));
-            DateTime = DateTimeOffset.ParseExact(dateString, @"r", CultureInfo.InvariantCulture);
-        }
-    }
-}

Hamakaze/Headers/HttpHeader.cs

@@ -1,41 +0,0 @@
-using System;
-using System.Globalization;
-
-namespace Hamakaze.Headers {
-    public abstract class HttpHeader {
-        public abstract string Name { get; }
-        public abstract object Value { get; }
-
-        public override string ToString() {
-            return string.Format(@"{0}: {1}", Name, Value);
-        }
-
-        public static string NormaliseName(string name) {
-            if(string.IsNullOrWhiteSpace(name))
-                return string.Empty;
-
-            string[] parts = name.ToLowerInvariant().Split('-', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
-            for(int i = 0; i < parts.Length; ++i)
-                parts[i] = CultureInfo.InvariantCulture.TextInfo.ToTitleCase(parts[i]);
-            return string.Join('-', parts);
-        }
-
-        public static HttpHeader Create(string name, object value) {
-            return name switch {
-                HttpTeHeader.NAME => new HttpTeHeader(value.ToString()),
-                HttpDateHeader.NAME => new HttpDateHeader(value.ToString()),
-                HttpHostHeader.NAME => new HttpHostHeader(value.ToString()),
-                HttpServerHeader.NAME => new HttpServerHeader(value.ToString()),
-                HttpUserAgentHeader.NAME => new HttpUserAgentHeader(value.ToString()),
-                HttpKeepAliveHeader.NAME => new HttpKeepAliveHeader(value.ToString()),
-                HttpConnectionHeader.NAME => new HttpConnectionHeader(value.ToString()),
-                HttpContentTypeHeader.NAME => new HttpContentTypeHeader(value.ToString()),
-                HttpContentLengthHeader.NAME => new HttpContentLengthHeader(value.ToString()),
-                HttpAcceptEncodingHeader.NAME => new HttpAcceptEncodingHeader(value.ToString()),
-                HttpContentEncodingHeader.NAME => new HttpContentEncodingHeader(value.ToString()),
-                HttpTransferEncodingHeader.NAME => new HttpTransferEncodingHeader(value.ToString()),
-                _ => new HttpCustomHeader(name, value),
-            };
-        }
-    }
-}

Hamakaze/Headers/HttpHostHeader.cs

@@ -1,37 +0,0 @@
-using System;
-using System.Linq;
-using System.Text;
-
-namespace Hamakaze.Headers {
-    public class HttpHostHeader : HttpHeader {
-        public const string NAME = @"Host";
-
-        public override string Name => NAME;
-        public override object Value {
-            get {
-                StringBuilder sb = new();
-                sb.Append(Host);
-                if(Port != -1)
-                    sb.AppendFormat(@":{0}", Port);
-                return sb.ToString();
-            }
-        }
-
-        public string Host { get; }
-        public int Port { get; }
-        public bool IsSecure { get; }
-
-        public HttpHostHeader(string host, int port) {
-            Host = host;
-            Port = port;
-        }
-
-        public HttpHostHeader(string hostAndPort) {
-            string[] parts = hostAndPort.Split(':', 2, StringSplitOptions.TrimEntries);
-            Host = parts.ElementAtOrDefault(0) ?? throw new ArgumentNullException(nameof(hostAndPort));
-            if(!ushort.TryParse(parts.ElementAtOrDefault(1), out ushort port))
-                throw new FormatException(@"Host is not in valid format.");
-            Port = port;
-        }
-    }
-}

Hamakaze/Headers/HttpKeepAliveHeader.cs

@@ -1,35 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Hamakaze.Headers {
-    public class HttpKeepAliveHeader : HttpHeader {
-        public const string NAME = @"Keep-Alive";
-
-        public override string Name => NAME;
-        public override object Value {
-            get {
-                List<string> parts = new();
-                if(MaxIdle != TimeSpan.MaxValue)
-                    parts.Add(string.Format(@"timeout={0}", MaxIdle.TotalSeconds));
-                if(MaxRequests >= 0)
-                    parts.Add(string.Format(@"max={0}", MaxRequests));
-                return string.Join(@", ", parts);
-            }
-        }
-
-        public TimeSpan MaxIdle { get; } = TimeSpan.MaxValue;
-        public int MaxRequests { get; } = -1;
-
-        public HttpKeepAliveHeader(string value) {
-            IEnumerable<string> kvps = (value ?? throw new ArgumentNullException(nameof(value))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
-
-            foreach(string kvp in kvps) {
-                string[] parts = kvp.Split('=', 2, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
-                if(parts[0] == @"timeout" && int.TryParse(parts[1], out int timeout))
-                    MaxIdle = TimeSpan.FromSeconds(timeout);
-                else if(parts[0] == @"max" && int.TryParse(parts[1], out int max))
-                    MaxRequests = max;
-            }
-        }
-    }
-}

Hamakaze/Headers/HttpServerHeader.cs

@@ -1,14 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpServerHeader : HttpHeader {
-        public const string NAME = @"Server";
-
-        public override string Name => NAME;
-        public override object Value { get; }
-
-        public HttpServerHeader(string server) {
-            Value = server ?? throw new ArgumentNullException(nameof(server));
-        }
-    }
-}

Hamakaze/Headers/HttpTeHeader.cs

@@ -1,26 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace Hamakaze.Headers {
-    public class HttpTeHeader : HttpHeader {
-        public const string NAME = @"TE";
-
-        public override string Name => NAME;
-        public override object Value => string.Join(@", ", Encodings);
-
-        public HttpEncoding[] Encodings { get; }
-
-        public HttpTeHeader(string encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-        ) { }
-
-        public HttpTeHeader(string[] encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Select(HttpEncoding.Parse)
-        ) { }
-
-        public HttpTeHeader(IEnumerable<HttpEncoding> encodings) {
-            Encodings = (encodings ?? throw new ArgumentNullException(nameof(encodings))).ToArray();
-        }
-    }
-}

Hamakaze/Headers/HttpTransferEncodingHeader.cs

@@ -1,20 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpTransferEncodingHeader : HttpHeader {
-        public const string NAME = @"Transfer-Encoding";
-
-        public override string Name => NAME;
-        public override object Value => string.Join(@", ", Encodings);
-
-        public string[] Encodings { get; }
-
-        public HttpTransferEncodingHeader(string encodings) : this(
-            (encodings ?? throw new ArgumentNullException(nameof(encodings))).Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-        ) {}
-
-        public HttpTransferEncodingHeader(string[] encodings) {
-            Encodings = encodings ?? throw new ArgumentNullException(nameof(encodings));
-        }
-    }
-}

Hamakaze/Headers/HttpUserAgentHeader.cs

@@ -1,20 +0,0 @@
-using System;
-
-namespace Hamakaze.Headers {
-    public class HttpUserAgentHeader : HttpHeader {
-        public const string NAME = @"User-Agent";
-
-        public override string Name => NAME;
-        public override object Value { get; }
-        
-        public HttpUserAgentHeader(string userAgent) {
-            if(userAgent == null)
-                throw new ArgumentNullException(nameof(userAgent));
-
-            if(string.IsNullOrWhiteSpace(userAgent) || userAgent.Equals(HttpClient.USER_AGENT))
-                Value = HttpClient.USER_AGENT;
-            else
-                Value = string.Format(@"{0} {1}", userAgent, HttpClient.USER_AGENT);
-        }
-    }
-}

Hamakaze/HttpClient.cs

@@ -1,118 +0,0 @@
-using Hamakaze.Headers;
-using System;
-using System.Collections.Generic;
-
-namespace Hamakaze {
-    public class HttpClient : IDisposable {
-        public const string PRODUCT_STRING = @"HMKZ";
-        public const string VERSION_MAJOR = @"1";
-        public const string VERSION_MINOR = @"0";
-        public const string USER_AGENT = PRODUCT_STRING + @"/" + VERSION_MAJOR + @"." + VERSION_MINOR;
-
-        private static HttpClient InstanceValue { get; set; }
-        public static HttpClient Instance {
-            get {
-                if(InstanceValue == null)
-                    InstanceValue = new HttpClient();
-                return InstanceValue;
-            }
-        }
-
-        private HttpConnectionManager Connections { get; }
-        private HttpTaskManager Tasks { get; }
-
-        public string DefaultUserAgent { get; set; } = USER_AGENT;
-        public bool ReuseConnections { get; set; } = true;
-        public IEnumerable<HttpEncoding> AcceptedEncodings { get; set; } = new[] { HttpEncoding.GZip, HttpEncoding.Deflate, HttpEncoding.Brotli };
-
-        public HttpClient() {
-            Connections = new HttpConnectionManager();
-            Tasks = new HttpTaskManager();
-        }
-
-        public HttpTask CreateTask(
-            HttpRequestMessage request,
-            Action<HttpTask, HttpResponseMessage> onComplete = null,
-            Action<HttpTask, Exception> onError = null,
-            Action<HttpTask> onCancel = null,
-            Action<HttpTask, long, long> onDownloadProgress = null,
-            Action<HttpTask, long, long> onUploadProgress = null,
-            Action<HttpTask, HttpTask.TaskState> onStateChange = null,
-            bool disposeRequest = true,
-            bool disposeResponse = true
-        ) {
-            if(request == null)
-                throw new ArgumentNullException(nameof(request));
-            if(string.IsNullOrWhiteSpace(request.UserAgent))
-                request.UserAgent = DefaultUserAgent;
-            if(!request.HasHeader(HttpAcceptEncodingHeader.NAME))
-                request.AcceptedEncodings = AcceptedEncodings;
-            request.Connection = ReuseConnections ? HttpConnectionHeader.KEEP_ALIVE : HttpConnectionHeader.CLOSE;
-
-            HttpTask task = new(Connections, request, disposeRequest, disposeResponse);
-
-            if(onComplete != null)
-                task.OnComplete += onComplete;
-            if(onError != null)
-                task.OnError += onError;
-            if(onCancel != null)
-                task.OnCancel += onCancel;
-            if(onDownloadProgress != null)
-                task.OnDownloadProgress += onDownloadProgress;
-            if(onUploadProgress != null)
-                task.OnUploadProgress += onUploadProgress;
-            if(onStateChange != null)
-                task.OnStateChange += onStateChange;
-
-            return task;
-        }
-
-        public void RunTask(HttpTask task) {
-            Tasks.RunTask(task);
-        }
-
-        public void SendRequest(
-            HttpRequestMessage request,
-            Action<HttpTask, HttpResponseMessage> onComplete = null,
-            Action<HttpTask, Exception> onError = null,
-            Action<HttpTask> onCancel = null,
-            Action<HttpTask, long, long> onDownloadProgress = null,
-            Action<HttpTask, long, long> onUploadProgress = null,
-            Action<HttpTask, HttpTask.TaskState> onStateChange = null,
-            bool disposeRequest = true,
-            bool disposeResponse = true
-        ) {
-            RunTask(CreateTask(request, onComplete, onError, onCancel, onDownloadProgress, onUploadProgress, onStateChange, disposeRequest, disposeResponse));
-        }
-
-        public static void Send(
-            HttpRequestMessage request,
-            Action<HttpTask, HttpResponseMessage> onComplete = null,
-            Action<HttpTask, Exception> onError = null,
-            Action<HttpTask> onCancel = null,
-            Action<HttpTask, long, long> onDownloadProgress = null,
-            Action<HttpTask, long, long> onUploadProgress = null,
-            Action<HttpTask, HttpTask.TaskState> onStateChange = null,
-            bool disposeRequest = true,
-            bool disposeResponse = true
-        ) {
-            Instance.SendRequest(request, onComplete, onError, onCancel, onDownloadProgress, onUploadProgress, onStateChange, disposeRequest, disposeResponse);
-        }
-
-        private bool IsDisposed;
-        ~HttpClient()
-            => DoDispose();
-        public void Dispose() {
-            DoDispose();
-            GC.SuppressFinalize(this);
-        }
-        private void DoDispose() {
-            if(IsDisposed)
-                return;
-            IsDisposed = true;
-
-            Tasks.Dispose();
-            Connections.Dispose();
-        }
-    }
-}

Hamakaze/HttpConnection.cs

@@ -1,81 +0,0 @@
-using System;
-using System.IO;
-using System.Net;
-using System.Net.Security;
-using System.Net.Sockets;
-using System.Security.Authentication;
-using System.Threading;
-
-namespace Hamakaze {
-    public class HttpConnection : IDisposable {
-        public IPEndPoint EndPoint { get; }
-        public Stream Stream { get; }
-
-        public Socket Socket { get; }
-        public NetworkStream NetworkStream { get; }
-        public SslStream SslStream { get; }
-
-        public string Host { get; }
-        public bool IsSecure { get; }
-
-        public bool HasTimedOut => MaxRequests == 0 || (DateTimeOffset.Now - LastOperation) > MaxIdle;
-
-        public int MaxRequests { get; set; } = -1;
-        public TimeSpan MaxIdle { get; set; } = TimeSpan.MaxValue;
-        public DateTimeOffset LastOperation { get; private set; } = DateTimeOffset.Now;
-
-        public bool InUse { get; private set; }
-
-        public HttpConnection(string host, IPEndPoint endPoint, bool secure) {
-            Host = host ?? throw new ArgumentNullException(nameof(host));
-            EndPoint = endPoint ?? throw new ArgumentNullException(nameof(endPoint));
-            IsSecure = secure;
-
-            if(endPoint.AddressFamily is not AddressFamily.InterNetwork and not AddressFamily.InterNetworkV6)
-                throw new ArgumentException(@"Address must be an IPv4 or IPv6 address.", nameof(endPoint));
-
-            Socket = new Socket(endPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp) {
-                NoDelay = true,
-                Blocking = true,
-            };
-            Socket.Connect(endPoint);
-
-            NetworkStream = new NetworkStream(Socket, true);
-
-            if(IsSecure) {
-                SslStream = new SslStream(NetworkStream, false, (s, ce, ch, e) => e == SslPolicyErrors.None, null);
-                Stream = SslStream;
-                SslStream.AuthenticateAsClient(Host, null, SslProtocols.Tls11 | SslProtocols.Tls12 | SslProtocols.Tls13, true);
-            } else
-                Stream = NetworkStream;
-        }
-
-        public void MarkUsed() {
-            LastOperation = DateTimeOffset.Now;
-            if(MaxRequests > 0)
-                --MaxRequests;
-        }
-
-        public bool Acquire() {
-            return !InUse && (InUse = true);
-        }
-
-        public void Release() {
-            InUse = false;
-        }
-
-        private bool IsDisposed;
-        ~HttpConnection()
-            => DoDispose();
-        public void Dispose() {
-            DoDispose();
-            GC.SuppressFinalize(this);
-        }
-        private void DoDispose() {
-            if(IsDisposed)
-                return;
-            IsDisposed = true;
-            Stream.Dispose();
-        }
-    }
-}

Hamakaze/HttpConnectionManager.cs

@@ -1,122 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Threading;
-
-namespace Hamakaze {
-    public class HttpConnectionManager : IDisposable {
-        private List<HttpConnection> Connections { get; } = new();
-        private Mutex Lock { get; } = new();
-
-        public HttpConnectionManager() {
-        }
-
-        private void AcquireLock() {
-            if(!Lock.WaitOne(10000))
-                throw new HttpConnectionManagerLockException();
-        }
-
-        private void ReleaseLock() {
-            Lock.ReleaseMutex();
-        }
-
-        public HttpConnection CreateConnection(string host, IPEndPoint endPoint, bool secure) {
-            if(host == null)
-                throw new ArgumentNullException(nameof(host));
-            if(endPoint == null)
-                throw new ArgumentNullException(nameof(endPoint));
-            HttpConnection conn = null;
-            AcquireLock();
-            try {
-                conn = CreateConnectionInternal(host, endPoint, secure);
-            } finally {
-                ReleaseLock();
-            }
-            return conn;
-        }
-
-        private HttpConnection CreateConnectionInternal(string host, IPEndPoint endPoint, bool secure) {
-            HttpConnection conn = new(host, endPoint, secure);
-            Connections.Add(conn);
-            return conn;
-        }
-
-        public HttpConnection GetConnection(string host, IPEndPoint endPoint, bool secure) {
-            if(host == null)
-                throw new ArgumentNullException(nameof(host));
-            if(endPoint == null)
-                throw new ArgumentNullException(nameof(endPoint));
-            HttpConnection conn = null;
-            AcquireLock();
-            try {
-                conn = GetConnectionInternal(host, endPoint, secure);
-            } finally {
-                ReleaseLock();
-            }
-            return conn;
-        }
-
-        private HttpConnection GetConnectionInternal(string host, IPEndPoint endPoint, bool secure) {
-            CleanConnectionsInternal();
-            HttpConnection conn = Connections.FirstOrDefault(c => host.Equals(c.Host) && endPoint.Equals(c.EndPoint) && c.IsSecure == secure && c.Acquire());
-            if(conn == null) {
-                conn = CreateConnectionInternal(host, endPoint, secure);
-                conn.Acquire();
-            }
-            return conn;
-        }
-
-        public void EndConnection(HttpConnection conn) {
-            if(conn == null)
-                throw new ArgumentNullException(nameof(conn));
-            AcquireLock();
-            try {
-                EndConnectionInternal(conn);
-            } finally {
-                ReleaseLock();
-            }
-        }
-
-        private void EndConnectionInternal(HttpConnection conn) {
-            Connections.Remove(conn);
-            conn.Dispose();
-        }
-
-        public void CleanConnection() {
-            AcquireLock();
-            try {
-                CleanConnectionsInternal();
-            } finally {
-                ReleaseLock();
-            }
-        }
-
-        private void CleanConnectionsInternal() {
-            IEnumerable<HttpConnection> conns = Connections.Where(x => x.HasTimedOut).ToArray();
-            foreach(HttpConnection conn in conns) {
-                Connections.Remove(conn);
-                conn.Dispose();
-            }
-        }
-
-        private bool IsDisposed;
-        ~HttpConnectionManager()
-            => DoDispose();
-        public void Dispose() {
-            DoDispose();
-            GC.SuppressFinalize(this);
-        }
-        private void DoDispose() {
-            if(IsDisposed)
-                return;
-            IsDisposed = true;
-
-            Lock.Dispose();
-
-            foreach(HttpConnection conn in Connections)
-                conn.Dispose();
-            Connections.Clear();
-        }
-    }
-}

Hamakaze/HttpEncoding.cs

@@ -1,69 +0,0 @@
-using System;
-using System.Globalization;
-using System.Text;
-
-namespace Hamakaze {
-    public readonly struct HttpEncoding : IComparable<HttpEncoding?>, IEquatable<HttpEncoding?> {
-        public const string DEFLATE = @"deflate";
-        public const string GZIP = @"gzip";
-        public const string XGZIP = @"x-gzip";
-        public const string BROTLI = @"br";
-        public const string IDENTITY = @"identity";
-        public const string CHUNKED = @"chunked";
-        public const string ANY = @"*";
-
-        public static readonly HttpEncoding Any = new(ANY);
-        public static readonly HttpEncoding None = new(ANY, 0f);
-        public static readonly HttpEncoding Deflate = new(DEFLATE);
-        public static readonly HttpEncoding GZip = new(GZIP);
-        public static readonly HttpEncoding Brotli = new(BROTLI);
-        public static readonly HttpEncoding Identity = new(IDENTITY);
-
-        public string Name { get; }
-        public float Quality { get; }
-
-        public HttpEncoding(string name, float quality = 1f) {
-            Name = name ?? throw new ArgumentNullException(nameof(name));
-            Quality = quality;
-        }
-
-        public HttpEncoding WithQuality(float quality) {
-            return new HttpEncoding(Name, quality);
-        }
-
-        public static HttpEncoding Parse(string encoding) {
-            string[] parts = encoding.Split(';', StringSplitOptions.TrimEntries);
-            float quality = 1f;
-            encoding = parts[0];
-
-            for(int i = 1; i < parts.Length; ++i)
-                if(parts[i].StartsWith(@"q=")) {
-                    if(!float.TryParse(parts[i], out quality))
-                        quality = 1f;
-                    break;
-                }
-
-            return new HttpEncoding(encoding, quality);
-        }
-
-        public override string ToString() {
-            StringBuilder sb = new();
-            sb.Append(Name);
-            if(Quality is >= 0f and < 1f)
-                sb.AppendFormat(CultureInfo.InvariantCulture, @";q={0:0.0}", Quality);
-            return sb.ToString();
-        }
-
-        public int CompareTo(HttpEncoding? other) {
-            if(!other.HasValue || other.Value.Quality < Quality)
-                return -1;
-            if(other.Value.Quality > Quality)
-                return 1;
-            return 0;
-        }
-
-        public bool Equals(HttpEncoding? other) {
-            return other.HasValue && Name.Equals(other.Value.Name) && Quality.Equals(other.Value.Quality);
-        }
-    }
-}

Hamakaze/HttpException.cs

@@ -1,40 +0,0 @@
-using System;
-
-namespace Hamakaze {
-    public class HttpException : Exception {
-        public HttpException(string message) : base(message) { }
-    }
-
-    public class HttpConnectionManagerException : HttpException {
-        public HttpConnectionManagerException(string message) : base(message) { }
-    }
-    public class HttpConnectionManagerLockException : HttpConnectionManagerException {
-        public HttpConnectionManagerLockException() : base(@"Failed to lock the connection manager in time.") { }
-    }
-
-    public class HttpTaskException : HttpException {
-        public HttpTaskException(string message) : base(message) { }
-    }
-    public class HttpTaskAlreadyStartedException : HttpTaskException {
-        public HttpTaskAlreadyStartedException() : base(@"Task has already started.") { }
-    }
-    public class HttpTaskInvalidStateException : HttpTaskException {
-        public HttpTaskInvalidStateException() : base(@"Task has ended up in an invalid state.") { }
-    }
-    public class HttpTaskNoAddressesException : HttpTaskException {
-        public HttpTaskNoAddressesException() : base(@"Could not find any addresses for this host.") { }
-    }
-    public class HttpTaskNoConnectionException : HttpTaskException {
-        public HttpTaskNoConnectionException() : base(@"Was unable to create a connection with this host.") { }
-    }
-    public class HttpTaskRequestFailedException : HttpTaskException {
-        public HttpTaskRequestFailedException() : base(@"Request failed for unknown reasons.") { }
-    }
-
-    public class HttpTaskManagerException : HttpException {
-        public HttpTaskManagerException(string message) : base(message) { }
-    }
-    public class HttpTaskManagerLockException : HttpTaskManagerException {
-        public HttpTaskManagerLockException() : base(@"Failed to reserve a thread.") { }
-    }
-}

Hamakaze/HttpMediaType.cs

@@ -1,159 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-namespace Hamakaze {
-    public readonly struct HttpMediaType : IComparable<HttpMediaType?>, IEquatable<HttpMediaType?> {
-        public const string TYPE_APPLICATION = @"application";
-        public const string TYPE_AUDIO = @"audio";
-        public const string TYPE_IMAGE = @"image";
-        public const string TYPE_MESSAGE = @"message";
-        public const string TYPE_MULTIPART = @"multipart";
-        public const string TYPE_TEXT = @"text";
-        public const string TYPE_VIDEO = @"video";
-
-        public static readonly HttpMediaType OctetStream = new(TYPE_APPLICATION, @"octet-stream");
-        public static readonly HttpMediaType FWIF = new(TYPE_APPLICATION, @"x.fwif");
-        public static readonly HttpMediaType JSON = new(TYPE_APPLICATION, @"json");
-        public static readonly HttpMediaType HTML = new(TYPE_TEXT, @"html", args: new[] { Param.UTF8 });
-
-        public string Type { get; }
-        public string Subtype { get; }
-        public string Suffix { get; }
-        public IEnumerable<Param> Params { get; }
-
-        public HttpMediaType(string type, string subtype, string suffix = null, IEnumerable<Param> args = null) {
-            Type = type ?? throw new ArgumentNullException(nameof(type));
-            Subtype = subtype ?? throw new ArgumentNullException(nameof(subtype));
-            Suffix = suffix ?? string.Empty;
-            Params = args ?? Enumerable.Empty<Param>();
-        }
-
-        public string GetParamValue(string name) {
-            foreach(Param param in Params)
-                if(param.Name.ToLowerInvariant() == name)
-                    return param.Value;
-            return null;
-        }
-
-        public static explicit operator HttpMediaType(string mediaTypeString) => Parse(mediaTypeString);
-
-        public static HttpMediaType Parse(string mediaTypeString) {
-            if(mediaTypeString == null)
-                throw new ArgumentNullException(nameof(mediaTypeString));
-
-            int slashIndex = mediaTypeString.IndexOf('/');
-            if(slashIndex == -1)
-                return OctetStream;
-
-            string type = mediaTypeString[..slashIndex];
-            string subtype = mediaTypeString[(slashIndex + 1)..];
-            string suffix = null;
-            IEnumerable<Param> args = null;
-
-            int paramIndex = subtype.IndexOf(';');
-            if(paramIndex != -1) {
-                args = subtype[(paramIndex + 1)..]
-                    .Split(';', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
-                    .Select(Param.Parse);
-                subtype = subtype[..paramIndex];
-            }
-
-            int suffixIndex = subtype.IndexOf('+');
-            if(suffixIndex != -1) {
-                suffix = subtype[(suffixIndex + 1)..];
-                subtype = subtype[..suffixIndex];
-            }
-
-            return new HttpMediaType(type, subtype, suffix, args);
-        }
-
-        public override string ToString() {
-            StringBuilder sb = new();
-            sb.AppendFormat(@"{0}/{1}", Type, Subtype);
-            if(!string.IsNullOrWhiteSpace(Suffix))
-                sb.AppendFormat(@"+{0}", Suffix);
-            if(Params.Any())
-                sb.AppendFormat(@";{0}", string.Join(';', Params));
-            return sb.ToString();
-        }
-
-        public int CompareTo(HttpMediaType? other) {
-            if(!other.HasValue)
-                return -1;
-            int type = Type.CompareTo(other.Value.Type);
-            if(type != 0)
-                return type;
-            int subtype = Subtype.CompareTo(other.Value.Subtype);
-            if(subtype != 0)
-                return subtype;
-            int suffix = Suffix.CompareTo(other.Value.Suffix);
-            if(suffix != 0)
-                return suffix;
-            int paramCount = Params.Count();
-            int args = paramCount - other.Value.Params.Count();
-            if(args != 0)
-                return args;
-            for(int i = 0; i < paramCount; ++i) {
-                args = Params.ElementAt(i).CompareTo(other.Value.Params.ElementAt(i));
-                if(args != 0)
-                    return args;
-            }
-            return 0;
-        }
-
-        public bool Equals(HttpMediaType? other) {
-            if(!other.HasValue)
-                return false;
-            if(!Type.Equals(other.Value.Type) || !Subtype.Equals(other.Value.Subtype) || !Suffix.Equals(other.Value.Suffix))
-                return false;
-            int paramCount = Params.Count();
-            if(paramCount != other.Value.Params.Count())
-                return false;
-            for(int i = 0; i < paramCount; ++i)
-                if(!Params.ElementAt(i).Equals(other.Value.Params.ElementAt(i)))
-                    return false;
-            return true;
-        }
-
-        public readonly struct Param : IComparable<Param?>, IEquatable<Param?> {
-            public const string CHARSET = @"charset";
-
-            public static readonly Param ASCII = new(CHARSET, @"us-ascii");
-            public static readonly Param UTF8 = new(CHARSET, @"utf-8");
-
-            public string Name { get; }
-            public string Value { get; }
-
-            public Param(string name, string value) {
-                Name = name ?? throw new ArgumentNullException(nameof(name));
-                Value = value ?? throw new ArgumentNullException(nameof(name));
-            }
-
-            public override string ToString() {
-                return string.Format(@"{0}={1}", Name, Value);
-            }
-
-            public static explicit operator Param(string paramStr) => Parse(paramStr);
-
-            public static Param Parse(string paramStr) {
-                string[] parts = (paramStr ?? throw new ArgumentNullException(nameof(paramStr))).Split('=', 2, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
-                return new Param(parts[0], parts[1]);
-            }
-
-            public int CompareTo(Param? other) {
-                if(!other.HasValue)
-                    return -1;
-                int name = Name.CompareTo(other.Value.Name);
-                return name != 0
-                    ? name
-                    : Value.CompareTo(other.Value.Value);
-            }
-
-            public bool Equals(Param? other) {
-                return other.HasValue && Name.Equals(other.Value.Name) && Value.Equals(other.Value.Value);
-            }
-        }
-    }
-}

Hamakaze/HttpMessage.cs

@@ -1,46 +0,0 @@
-using Hamakaze.Headers;
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-
-namespace Hamakaze {
-    public abstract class HttpMessage : IDisposable {
-        public abstract string ProtocolVersion { get; }
-        public abstract IEnumerable<HttpHeader> Headers { get; }
-        public abstract Stream Body { get; }
-
-        public virtual bool HasBody => Body != null;
-
-        protected bool OwnsBodyStream { get; set; }
-
-        public virtual IEnumerable<HttpHeader> GetHeader(string header) {
-            header = HttpHeader.NormaliseName(header);
-            return Headers.Where(h => h.Name == header);
-        }
-
-        public virtual bool HasHeader(string header) {
-            header = HttpHeader.NormaliseName(header);
-            return Headers.Any(h => h.Name == header);
-        }
-
-        public virtual string GetHeaderLine(string header) {
-            return string.Join(@", ", GetHeader(header).Select(h => h.Value));
-        }
-
-        private bool IsDisposed;
-        ~HttpMessage()
-            => DoDispose();
-        public void Dispose() {
-            DoDispose();
-            GC.SuppressFinalize(this);
-        }
-        protected void DoDispose() {
-            if(IsDisposed)
-                return;
-            IsDisposed = true;
-            if(OwnsBodyStream && Body != null)
-                Body.Dispose();
-        }
-    }
-}

Hamakaze/HttpRequestMessage.cs

@@ -1,190 +0,0 @@
-using Hamakaze.Headers;
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-
-namespace Hamakaze {
-    public class HttpRequestMessage : HttpMessage {
-        public const string GET = @"GET";
-        public const string PUT = @"PUT";
-        public const string HEAD = @"HEAD";
-        public const string POST = @"POST";
-        public const string DELETE = @"DELETE";
-
-        public override string ProtocolVersion => @"1.1";
-
-        public string Method { get; }
-        public string RequestTarget { get; }
-
-        public bool IsSecure { get; }
-
-        public string Host { get; }
-        public ushort Port { get; }
-        public bool IsDefaultPort { get; }
-
-        public override IEnumerable<HttpHeader> Headers => HeaderList;
-        private List<HttpHeader> HeaderList { get; } = new();
-
-        private Stream BodyStream { get; set; }
-        public override Stream Body {
-            get {
-                if(BodyStream == null) {
-                    OwnsBodyStream = true;
-                    SetBody(new MemoryStream());
-                }
-                return BodyStream;
-            }
-        }
-
-        private static readonly string[] HEADERS_READONLY = new[] {
-            HttpHostHeader.NAME, HttpContentLengthHeader.NAME,
-        };
-        private static readonly string[] HEADERS_SINGLE = new[] {
-            HttpUserAgentHeader.NAME, HttpConnectionHeader.NAME, HttpAcceptEncodingHeader.NAME,
-        };
-
-        public IEnumerable<HttpEncoding> AcceptedEncodings {
-            get => HeaderList.Where(x => x.Name == HttpAcceptEncodingHeader.NAME).Cast<HttpAcceptEncodingHeader>().FirstOrDefault()?.Encodings
-                ?? Enumerable.Empty<HttpEncoding>();
-
-            set {
-                HeaderList.RemoveAll(x => x.Name == HttpAcceptEncodingHeader.NAME);
-                HeaderList.Add(new HttpAcceptEncodingHeader(value));
-            }
-        }
-
-        public string UserAgent {
-            get => HeaderList.FirstOrDefault(x => x.Name == HttpUserAgentHeader.NAME)?.Value.ToString()
-                ?? string.Empty;
-            set {
-                HeaderList.RemoveAll(x => x.Name == HttpUserAgentHeader.NAME);
-                HeaderList.Add(new HttpUserAgentHeader(value));
-            }
-        }
-
-        public string Connection {
-            get => HeaderList.FirstOrDefault(x => x.Name == HttpConnectionHeader.NAME)?.Value.ToString()
-                ?? string.Empty;
-            set {
-                HeaderList.RemoveAll(x => x.Name == HttpConnectionHeader.NAME);
-                HeaderList.Add(new HttpConnectionHeader(value));
-            }
-        }
-
-        public HttpMediaType ContentType {
-            get => HeaderList.Where(x => x.Name == HttpContentTypeHeader.NAME).Cast<HttpContentTypeHeader>().FirstOrDefault()?.MediaType
-                ?? HttpMediaType.OctetStream;
-            set {
-                HeaderList.RemoveAll(x => x.Name == HttpContentTypeHeader.NAME);
-                HeaderList.Add(new HttpContentTypeHeader(value));
-            }
-        }
-
-        public HttpRequestMessage(string method, string uri) : this(
-            method, new Uri(uri)
-        ) {}
-
-        public const ushort HTTP = 80;
-        public const ushort HTTPS = 443;
-
-        public HttpRequestMessage(string method, Uri uri) {
-            Method = method ?? throw new ArgumentNullException(nameof(method));
-            RequestTarget = uri.PathAndQuery;
-            IsSecure = uri.Scheme.Equals(@"https", StringComparison.InvariantCultureIgnoreCase);
-            Host = uri.Host;
-            ushort defaultPort = (IsSecure ? HTTPS : HTTP);
-            Port = uri.Port == -1 ? defaultPort : (ushort)uri.Port;
-            IsDefaultPort = Port == defaultPort;
-            HeaderList.Add(new HttpHostHeader(Host, IsDefaultPort ? -1 : Port));
-        }
-
-        public static bool IsHeaderReadOnly(string name)
-            => HEADERS_READONLY.Contains(name ?? throw new ArgumentNullException(nameof(name)));
-        public static bool IsHeaderSingleInstance(string name)
-            => HEADERS_SINGLE.Contains(name ?? throw new ArgumentNullException(nameof(name)));
-
-        public void SetHeader(string name, object value) {
-            name = HttpHeader.NormaliseName(name ?? throw new ArgumentNullException(nameof(name)));
-            if(IsHeaderReadOnly(name))
-                throw new ArgumentException(@"This header is read-only.", nameof(name));
-            HeaderList.RemoveAll(x => x.Name == name);
-            HeaderList.Add(HttpHeader.Create(name, value));
-        }
-
-        public void AddHeader(string name, object value) {
-            name = HttpHeader.NormaliseName(name ?? throw new ArgumentNullException(nameof(name)));
-            if(IsHeaderReadOnly(name))
-                throw new ArgumentException(@"This header is read-only.", nameof(name));
-            if(IsHeaderSingleInstance(name))
-                HeaderList.RemoveAll(x => x.Name == name);
-            HeaderList.Add(HttpHeader.Create(name, value));
-        }
-
-        public void RemoveHeader(string name) {
-            name = HttpHeader.NormaliseName(name ?? throw new ArgumentNullException(nameof(name)));
-            if(IsHeaderReadOnly(name))
-                throw new ArgumentException(@"This header is read-only.", nameof(name));
-            HeaderList.RemoveAll(x => x.Name == name);
-        }
-
-        public void SetBody(Stream stream) {
-            if(stream == null) {
-                if(OwnsBodyStream)
-                    BodyStream?.Dispose();
-                OwnsBodyStream = false;
-                BodyStream = null;
-                HeaderList.RemoveAll(x => x.Name == HttpContentLengthHeader.NAME);
-            } else {
-                if(!stream.CanRead || !stream.CanSeek)
-                    throw new ArgumentException(@"Body must readable and seekable.", nameof(stream));
-                if(OwnsBodyStream)
-                    BodyStream?.Dispose();
-                OwnsBodyStream = false;
-                BodyStream = stream;
-                HeaderList.Add(new HttpContentLengthHeader(BodyStream));
-            }
-        }
-
-        public void SetBody(byte[] buffer) {
-            SetBody(new MemoryStream(buffer));
-            OwnsBodyStream = true;
-        }
-
-        public void SetBody(string str, Encoding encoding = null) {
-            SetBody((encoding ?? Encoding.UTF8).GetBytes(str));
-        }
-
-        public void WriteTo(Stream stream, Action<long, long> onProgress = null) {
-            using(StreamWriter sw = new(stream, new ASCIIEncoding(), leaveOpen: true)) {
-                sw.NewLine = "\r\n";
-                sw.Write(Method);
-                sw.Write(' ');
-                sw.Write(RequestTarget);
-                sw.Write(@" HTTP/");
-                sw.WriteLine(ProtocolVersion);
-                foreach(HttpHeader header in Headers)
-                    sw.WriteLine(header);
-                sw.WriteLine();
-                sw.Flush();
-            }
-
-            if(BodyStream != null) {
-                const int bufferSize = 8192;
-                byte[] buffer = new byte[bufferSize];
-                int read;
-                long totalRead = 0;
-
-                onProgress?.Invoke(totalRead, BodyStream.Length);
-
-                BodyStream.Seek(0, SeekOrigin.Begin);
-                while((read = BodyStream.Read(buffer, 0, bufferSize)) > 0) {
-                    stream.Write(buffer, 0, read);
-                    totalRead += read;
-                    onProgress?.Invoke(totalRead, BodyStream.Length);
-                }
-            }
-        }
-    }
-}

Hamakaze/HttpResponseMessage.cs

@@ -1,265 +0,0 @@
-using Hamakaze.Headers;
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.IO.Compression;
-using System.Linq;
-using System.Text;
-
-namespace Hamakaze {
-    public class HttpResponseMessage : HttpMessage {
-        public override string ProtocolVersion { get; }
-        public int StatusCode { get; }
-        public string StatusMessage { get; }
-
-        public override IEnumerable<HttpHeader> Headers { get; }
-
-        public override Stream Body { get; }
-
-        public string Connection
-            => Headers.FirstOrDefault(x => x.Name == HttpConnectionHeader.NAME)?.Value.ToString() ?? string.Empty;
-        public string Server
-            => Headers.FirstOrDefault(x => x.Name == HttpServerHeader.NAME)?.Value.ToString() ?? string.Empty;
-        public DateTimeOffset Date
-            => Headers.Where(x => x.Name == HttpDateHeader.NAME).Cast<HttpDateHeader>().FirstOrDefault()?.DateTime ?? DateTimeOffset.MinValue;
-        public HttpMediaType ContentType
-            => Headers.Where(x => x.Name == HttpContentTypeHeader.NAME).Cast<HttpContentTypeHeader>().FirstOrDefault()?.MediaType
-            ?? HttpMediaType.OctetStream;
-        public Encoding ResponseEncoding
-            => Encoding.GetEncoding(ContentType.GetParamValue(@"charset") ?? @"iso8859-1");
-        public IEnumerable<string> ContentEncodings
-            => Headers.Where(x => x.Name == HttpContentEncodingHeader.NAME).Cast<HttpContentEncodingHeader>().FirstOrDefault()?.Encodings
-            ?? Enumerable.Empty<string>();
-        public IEnumerable<string> TransferEncodings
-            => Headers.Where(x => x.Name == HttpTransferEncodingHeader.NAME).Cast<HttpTransferEncodingHeader>().FirstOrDefault()?.Encodings
-            ?? Enumerable.Empty<string>();
-
-        public HttpResponseMessage(
-            int statusCode, string statusMessage, string protocolVersion,
-            IEnumerable<HttpHeader> headers, Stream body
-        ) {
-            ProtocolVersion = protocolVersion ?? throw new ArgumentNullException(nameof(protocolVersion));
-            StatusCode = statusCode;
-            StatusMessage = statusMessage ?? string.Empty;
-            Headers = (headers ?? throw new ArgumentNullException(nameof(headers))).ToArray();
-            OwnsBodyStream = true;
-            Body = body;
-        }
-
-        public byte[] GetBodyBytes() {
-            if(Body == null)
-                return null;
-            if(Body is MemoryStream msBody)
-                return msBody.ToArray();
-            using MemoryStream ms = new();
-            if(Body.CanSeek)
-                Body.Seek(0, SeekOrigin.Begin);
-            Body.CopyTo(ms);
-            return ms.ToArray();
-        }
-
-        public string GetBodyString() {
-            byte[] bytes = GetBodyBytes();
-            return bytes == null || bytes.Length < 1
-                ? string.Empty
-                : ResponseEncoding.GetString(bytes);
-        }
-
-        // there's probably a less stupid way to do this, be my guest and call me an idiot
-        private static void ProcessEncoding(Stack<string> encodings, Stream stream, bool transfer) {
-            using MemoryStream temp = new();
-            bool inTemp = false;
-
-            while(encodings.TryPop(out string encoding)) {
-                Stream target = (inTemp = !inTemp) ? temp : stream,
-                    source = inTemp ? stream : temp;
-
-                target.SetLength(0);
-                source.Seek(0, SeekOrigin.Begin);
-
-                switch(encoding) {
-                    case HttpEncoding.GZIP:
-                    case HttpEncoding.XGZIP:
-                        using(GZipStream gzs = new(source, CompressionMode.Decompress, true))
-                            gzs.CopyTo(target);
-                        break;
-
-                    case HttpEncoding.DEFLATE:
-                        using(DeflateStream def = new(source, CompressionMode.Decompress, true))
-                            def.CopyTo(target);
-                        break;
-
-                    case HttpEncoding.BROTLI:
-                        if(transfer)
-                            goto default;
-                        using(BrotliStream br = new(source, CompressionMode.Decompress, true))
-                            br.CopyTo(target);
-                        break;
-
-                    case HttpEncoding.IDENTITY:
-                        break;
-
-                    case HttpEncoding.CHUNKED:
-                        if(!transfer)
-                            goto default;
-                        throw new IOException(@"Invalid use of chunked encoding type in Transfer-Encoding header.");
-
-                    default:
-                        throw new IOException(@"Unsupported encoding supplied.");
-                }
-            }
-
-            if(inTemp) {
-                stream.SetLength(0);
-                temp.Seek(0, SeekOrigin.Begin);
-                temp.CopyTo(stream);
-            }
-        }
-
-        public static HttpResponseMessage ReadFrom(Stream stream, Action<long, long> onProgress = null) {
-            // ignore this function, it doesn't exist
-            string readLine() {
-                const ushort crlf = 0x0D0A;
-                using MemoryStream ms = new();
-                int byt; ushort lastTwo = 0;
-
-                for(; ; ) {
-                    byt = stream.ReadByte();
-                    if(byt == -1 && ms.Length == 0)
-                        return null;
-
-                    ms.WriteByte((byte)byt);
-
-                    lastTwo <<= 8;
-                    lastTwo |= (byte)byt;
-                    if(lastTwo == crlf) {
-                        ms.SetLength(ms.Length - 2);
-                        break;
-                    }
-                }
-
-                return Encoding.ASCII.GetString(ms.ToArray());
-            }
-
-            long contentLength = -1;
-            Stack<string> transferEncodings = null;
-            Stack<string> contentEncodings = null;
-
-            // Read initial header
-            string line = readLine();
-            if(line == null)
-                throw new IOException(@"Failed to read initial HTTP header.");
-            if(!line.StartsWith(@"HTTP/"))
-                throw new IOException(@"Response is not a valid HTTP message.");
-            string[] parts = line[5..].Split(' ', 3);
-            if(!int.TryParse(parts.ElementAtOrDefault(1), out int statusCode))
-                throw new IOException(@"Invalid HTTP status code format.");
-            string protocolVersion = parts.ElementAtOrDefault(0);
-            string statusMessage = parts.ElementAtOrDefault(2);
-
-            // Read header key-value pairs
-            List<HttpHeader> headers = new();
-
-            while((line = readLine()) != null) {
-                if(string.IsNullOrWhiteSpace(line))
-                    break;
-
-                parts = line.Split(':', 2, StringSplitOptions.TrimEntries);
-                if(parts.Length < 2)
-                    throw new IOException(@"Invalid HTTP header in response.");
-
-                string hName = HttpHeader.NormaliseName(parts.ElementAtOrDefault(0) ?? string.Empty),
-                    hValue = parts.ElementAtOrDefault(1);
-                if(string.IsNullOrEmpty(hName))
-                    throw new IOException(@"Invalid HTTP header name.");
-
-                HttpHeader header = HttpHeader.Create(hName, hValue);
-
-                if(header is HttpContentLengthHeader hclh)
-                    contentLength = (long)hclh.Value;
-                else if(header is HttpTransferEncodingHeader hteh)
-                    transferEncodings = new Stack<string>(hteh.Encodings);
-                else if(header is HttpContentEncodingHeader hceh)
-                    contentEncodings = new Stack<string>(hceh.Encodings);
-
-                headers.Add(header);
-            }
-
-            if(statusCode is < 200 or 201 or 204 or 205)
-                contentLength = 0;
-
-            Stream body = null;
-            long totalRead = 0;
-            const int buffer_size = 8192;
-            byte[] buffer = new byte[buffer_size];
-            int read;
-
-            void readBuffer(long length = -1) {
-                if(length == 0)
-                    return;
-                long remaining = length;
-                int bufferRead = buffer_size;
-                if(bufferRead > length)
-                    bufferRead = (int)length;
-
-                if(totalRead < 1)
-                    onProgress?.Invoke(0, contentLength);
-
-                while((read = stream.Read(buffer, 0, bufferRead)) > 0) {
-                    body.Write(buffer, 0, read);
-
-                    totalRead += read;
-                    onProgress?.Invoke(totalRead, contentLength);
-
-                    if(length >= 0) {
-                        remaining -= read;
-                        if(remaining < 1)
-                            break;
-                        if(bufferRead > remaining)
-                            bufferRead = (int)remaining;
-                    }
-                }
-            }
-
-            // Read body
-            if(transferEncodings != null && transferEncodings.Any() && transferEncodings.Peek() == HttpEncoding.CHUNKED) {
-                // oh no the poop is chunky
-                transferEncodings.Pop();
-                body = new MemoryStream();
-
-                while((line = readLine()) != null) {
-                    if(string.IsNullOrWhiteSpace(line))
-                        break;
-                    if(!int.TryParse(line, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out int chunkLength))
-                        throw new IOException(@"Failed to decode chunk length.");
-                    if(chunkLength == 0) // final chunk
-                        break;
-                    readBuffer(chunkLength);
-                    readLine();
-                }
-                readLine();
-            } else if(contentLength != 0) {
-                body = new MemoryStream();
-                readBuffer(contentLength);
-                readLine();
-            }
-
-            if(body != null)
-                // Check if body is empty and null it again if so
-                if(body.Length == 0) {
-                    body.Dispose();
-                    body = null;
-                } else {
-                    if(transferEncodings != null)
-                        ProcessEncoding(transferEncodings, body, true);
-                    if(contentEncodings != null)
-                        ProcessEncoding(contentEncodings, body, false);
-
-                    body.Seek(0, SeekOrigin.Begin);
-                }
-
-            return new HttpResponseMessage(statusCode, statusMessage, protocolVersion, headers, body);
-        }
-    }
-}

Hamakaze/HttpTask.cs

@@ -1,189 +0,0 @@
-using Hamakaze.Headers;
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net;
-
-namespace Hamakaze {
-    public class HttpTask {
-        public TaskState State { get; private set; } = TaskState.Initial;
-
-        public bool IsStarted
-            => State != TaskState.Initial;
-        public bool IsFinished
-            => State == TaskState.Finished;
-        public bool IsCancelled
-            => State == TaskState.Cancelled;
-        public bool IsErrored
-            => Exception != null;
-
-        public Exception Exception { get; private set; }
-
-        public HttpRequestMessage Request { get; }
-        public HttpResponseMessage Response { get; private set; }
-        private HttpConnectionManager Connections { get; }
-
-        private IEnumerable<IPAddress> Addresses { get; set; }
-        private HttpConnection Connection { get; set; }
-
-        public bool DisposeRequest { get; set; }
-        public bool DisposeResponse { get; set; }
-
-        public event Action<HttpTask, HttpResponseMessage> OnComplete;
-        public event Action<HttpTask, Exception> OnError;
-        public event Action<HttpTask> OnCancel;
-        public event Action<HttpTask, long, long> OnUploadProgress;
-        public event Action<HttpTask, long, long> OnDownloadProgress;
-        public event Action<HttpTask, TaskState> OnStateChange;
-
-        public HttpTask(HttpConnectionManager conns, HttpRequestMessage request, bool disposeRequest, bool disposeResponse) {
-            Connections = conns ?? throw new ArgumentNullException(nameof(conns));
-            Request = request ?? throw new ArgumentNullException(nameof(request));
-            DisposeRequest = disposeRequest;
-            DisposeResponse = disposeResponse;
-        }
-
-        public void Run() {
-            if(IsStarted)
-                throw new HttpTaskAlreadyStartedException();
-            while(NextStep());
-        }
-
-        public void Cancel() {
-            State = TaskState.Cancelled;
-            OnStateChange?.Invoke(this, State);
-            OnCancel?.Invoke(this);
-            if(DisposeResponse)
-                Response?.Dispose();
-            if(DisposeRequest)
-                Request?.Dispose();
-        }
-
-        private void Error(Exception ex) {
-            Exception = ex;
-            OnError?.Invoke(this, ex);
-            Cancel();
-        }
-
-        public bool NextStep() {
-            if(IsCancelled)
-                return false;
-
-            switch(State) {
-                case TaskState.Initial:
-                    State = TaskState.Lookup;
-                    OnStateChange?.Invoke(this, State);
-                    DoLookup();
-                    break;
-                case TaskState.Lookup:
-                    State = TaskState.Request;
-                    OnStateChange?.Invoke(this, State);
-                    DoRequest();
-                    break;
-                case TaskState.Request:
-                    State = TaskState.Response;
-                    OnStateChange?.Invoke(this, State);
-                    DoResponse();
-                    break;
-                case TaskState.Response:
-                    State = TaskState.Finished;
-                    OnStateChange?.Invoke(this, State);
-                    OnComplete?.Invoke(this, Response);
-                    if(DisposeResponse)
-                        Response?.Dispose();
-                    if(DisposeRequest)
-                        Request?.Dispose();
-                    return false;
-                default:
-                    Error(new HttpTaskInvalidStateException());
-                    return false;
-            }
-
-            return true;
-        }
-
-        private void DoLookup() {
-            try {
-                Addresses = Dns.GetHostAddresses(Request.Host);
-            } catch(Exception ex) {
-                Error(ex);
-                return;
-            }
-
-            if(!Addresses.Any())
-                Error(new HttpTaskNoAddressesException());
-        }
-
-        private void DoRequest() {
-            Exception exception = null;
-
-            try {
-                foreach(IPAddress addr in Addresses) {
-                    int tries = 0;
-                    IPEndPoint endPoint = new(addr, Request.Port);
-
-                    exception = null;
-                    Connection = Connections.GetConnection(Request.Host, endPoint, Request.IsSecure);
-
-                retry:
-                    ++tries;
-                    try {
-                        Request.WriteTo(Connection.Stream, (p, t) => OnUploadProgress?.Invoke(this, p, t));
-                        break;
-                    } catch(IOException ex) {
-                        Connection.Dispose();
-                        Connection = Connections.GetConnection(Request.Host, endPoint, Request.IsSecure);
-
-                        if(tries < 2)
-                            goto retry;
-
-                        exception = ex;
-                        continue;
-                    } finally {
-                        Connection.MarkUsed();
-                    }
-                }
-            } catch(Exception ex) {
-                Error(ex);
-            }
-
-            if(exception != null)
-                Error(exception);
-            else if(Connection == null)
-                Error(new HttpTaskNoConnectionException());
-        }
-
-        private void DoResponse() {
-            try {
-                Response = HttpResponseMessage.ReadFrom(Connection.Stream, (p, t) => OnDownloadProgress?.Invoke(this, p, t));
-            } catch(Exception ex) {
-                Error(ex);
-                return;
-            }
-
-            if(Response.Connection == HttpConnectionHeader.CLOSE)
-                Connection.Dispose();
-            if(Response == null)
-                Error(new HttpTaskRequestFailedException());
-
-            HttpKeepAliveHeader hkah = Response.Headers.Where(x => x.Name == HttpKeepAliveHeader.NAME).Cast<HttpKeepAliveHeader>().FirstOrDefault();
-            if(hkah != null) {
-                Connection.MaxIdle = hkah.MaxIdle;
-                Connection.MaxRequests = hkah.MaxRequests;
-            }
-
-            Connection.Release();
-        }
-
-        public enum TaskState {
-            Initial = 0,
-            Lookup = 10,
-            Request = 20,
-            Response = 30,
-            Finished = 40,
-
-            Cancelled = -1,
-        }
-    }
-}

Hamakaze/HttpTaskManager.cs

@@ -1,41 +0,0 @@
-using System;
-using System.Threading;
-
-namespace Hamakaze {
-    public class HttpTaskManager : IDisposable {
-        private Semaphore Lock { get; set; }
-
-        public HttpTaskManager(int maxThreads = 5) {
-            Lock = new Semaphore(maxThreads, maxThreads);
-        }
-
-        public void RunTask(HttpTask task) {
-            if(task == null)
-                throw new ArgumentNullException(nameof(task));
-            if(!Lock.WaitOne())
-                throw new HttpTaskManagerLockException();
-            new Thread(() => {
-                try {
-                    task.Run();
-                } finally {
-                    Lock?.Release();
-                }
-            }).Start();
-        }
-
-        private bool IsDisposed;
-        ~HttpTaskManager()
-            => DoDispose();
-        public void Dispose() {
-            DoDispose();
-            GC.SuppressFinalize(this);
-        }
-        private void DoDispose() {
-            if(IsDisposed)
-                return;
-            IsDisposed = true;
-            Lock.Dispose();
-            Lock = null;
-        }
-    }
-}

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019-2022 flashwave
+Copyright (c) 2019-2024 flashwave
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -7,4 +7,7 @@
                      /_/                             
 ```
 
-Welcome to the repository of the temporary Flashii chat server. This is a reimplementation of the old [PHP based Sock Chat server](https://github.com/flashwave/mahou-chat/) in C#.
+Welcome to the repository of the Flashii Chat server!
+
+The protocol used is based on the protocol found in the original [PHP Sock Chat](https://patchii.net/sockchat/sockchat).
+A rendered version of the Protocol.md document can be found on [railgun.sh/sockchat](https://railgun.sh/sockchat).

SharpChat.Misuzu/MisuzuAuthInfo.cs

@@ -0,0 +1,31 @@
+using System.Text.Json.Serialization;
+
+namespace SharpChat.Misuzu {
+    public class MisuzuAuthInfo {
+        [JsonPropertyName("success")]
+        public bool Success { get; set; }
+
+        [JsonPropertyName("reason")]
+        public string Reason { get; set; } = "none";
+
+        [JsonPropertyName("user_id")]
+        public long UserId { get; set; }
+
+        [JsonPropertyName("username")]
+        public string? UserName { get; set; }
+
+        [JsonPropertyName("colour_raw")]
+        public int ColourRaw { get; set; }
+
+        public Colour Colour => Colour.FromMisuzu(ColourRaw);
+
+        [JsonPropertyName("hierarchy")]
+        public int Rank { get; set; }
+
+        [JsonPropertyName("perms")]
+        public UserPermissions Permissions { get; set; }
+
+        [JsonPropertyName("super")]
+        public bool IsSuper { get; set; }
+    }
+}

SharpChat.Misuzu/MisuzuBanInfo.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace SharpChat.Misuzu {
+    public class MisuzuBanInfo {
+        [JsonPropertyName("is_ban")]
+        public bool IsBanned { get; set; }
+
+        [JsonPropertyName("user_id")]
+        public string? UserId { get; set; }
+
+        [JsonPropertyName("ip_addr")]
+        public string? RemoteAddress { get; set; }
+
+        [JsonPropertyName("is_perma")]
+        public bool IsPermanent { get; set; }
+
+        [JsonPropertyName("expires")]
+        public DateTimeOffset ExpiresAt { get; set; }
+
+        // only populated in list request
+        [JsonPropertyName("user_name")]
+        public string? UserName { get; set; }
+
+        [JsonPropertyName("user_colour")]
+        public int UserColourRaw { get; set; }
+
+        public bool HasExpired => !IsPermanent && DateTimeOffset.UtcNow >= ExpiresAt;
+
+        public Colour UserColour => Colour.FromMisuzu(UserColourRaw);
+    }
+}

SharpChat.Misuzu/MisuzuClient.cs

@@ -0,0 +1,246 @@
+using SharpChat.Config;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace SharpChat.Misuzu {
+    public class MisuzuClient {
+        private const string DEFAULT_BASE_URL = "https://flashii.net/_sockchat";
+        private const string DEFAULT_SECRET_KEY = "woomy";
+
+        private const string BUMP_ONLINE_URL = "{0}/bump";
+        private const string AUTH_VERIFY_URL = "{0}/verify";
+
+        private const string BANS_CHECK_URL = "{0}/bans/check?u={1}&a={2}&x={3}&n={4}";
+        private const string BANS_CREATE_URL = "{0}/bans/create";
+        private const string BANS_REVOKE_URL = "{0}/bans/revoke?t={1}&s={2}&x={3}";
+        private const string BANS_LIST_URL = "{0}/bans/list?x={1}";
+
+        private const string VERIFY_SIG = "verify#{0}#{1}#{2}";
+        private const string BANS_CHECK_SIG = "check#{0}#{1}#{2}#{3}";
+        private const string BANS_REVOKE_SIG = "revoke#{0}#{1}#{2}";
+        private const string BANS_CREATE_SIG = "create#{0}#{1}#{2}#{3}#{4}#{5}#{6}#{7}";
+        private const string BANS_LIST_SIG = "list#{0}";
+
+        private readonly HttpClient HttpClient;
+
+        private CachedValue<string> BaseURL { get; }
+        private CachedValue<string> SecretKey { get; }
+
+        public MisuzuClient(HttpClient httpClient, IConfig config) {
+            HttpClient = httpClient;
+
+            BaseURL = config.ReadCached("url", DEFAULT_BASE_URL);
+            SecretKey = config.ReadCached("secret", DEFAULT_SECRET_KEY);
+        }
+
+        public string CreateStringSignature(string str) {
+            return CreateBufferSignature(Encoding.UTF8.GetBytes(str));
+        }
+
+        public string CreateBufferSignature(byte[] bytes) {
+            using HMACSHA256 algo = new(Encoding.UTF8.GetBytes(SecretKey.Value ?? string.Empty));
+            return string.Concat(algo.ComputeHash(bytes).Select(c => c.ToString("x2")));
+        }
+
+        public async Task<MisuzuAuthInfo?> AuthVerifyAsync(string method, string token, string ipAddr) {
+            method ??= string.Empty;
+            token ??= string.Empty;
+            ipAddr ??= string.Empty;
+
+            string sig = string.Format(VERIFY_SIG, method, token, ipAddr);
+
+            HttpRequestMessage req = new(HttpMethod.Post, string.Format(AUTH_VERIFY_URL, BaseURL)) {
+                Content = new FormUrlEncodedContent(new Dictionary<string, string> {
+                    { "method", method },
+                    { "token", token },
+                    { "ipaddr", ipAddr },
+                }),
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sig) },
+                },
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            return JsonSerializer.Deserialize<MisuzuAuthInfo>(
+                await res.Content.ReadAsByteArrayAsync()
+            );
+        }
+
+        public async Task BumpUsersOnlineAsync(IEnumerable<(string userId, string ipAddr)> list) {
+            if(!list.Any())
+                return;
+
+            string now = DateTimeOffset.UtcNow.ToUnixTimeSeconds().ToString();
+            StringBuilder sb = new();
+            sb.AppendFormat("bump#{0}", now);
+
+            Dictionary<string, string> formData = new() {
+                { "t", now }
+            };
+
+            foreach(var (userId, ipAddr) in list) {
+                sb.AppendFormat("#{0}:{1}", userId, ipAddr);
+                formData.Add(string.Format("u[{0}]", userId), ipAddr);
+            }
+
+            HttpRequestMessage req = new(HttpMethod.Post, string.Format(BUMP_ONLINE_URL, BaseURL)) {
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sb.ToString()) }
+                },
+                Content = new FormUrlEncodedContent(formData),
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            try {
+                res.EnsureSuccessStatusCode();
+            } catch(HttpRequestException) {
+                Logger.Debug(await res.Content.ReadAsStringAsync());
+#if DEBUG
+                throw;
+#endif
+            }
+        }
+
+        public async Task<MisuzuBanInfo?> CheckBanAsync(
+            string? userId = null,
+            string? ipAddr = null,
+            bool userIdIsName = false
+        ) {
+            userId ??= string.Empty;
+            ipAddr ??= string.Empty;
+
+            string userIdIsNameStr = userIdIsName ? "1" : "0";
+            string now = DateTimeOffset.Now.ToUnixTimeSeconds().ToString();
+            string url = string.Format(BANS_CHECK_URL, BaseURL, Uri.EscapeDataString(userId), Uri.EscapeDataString(ipAddr), Uri.EscapeDataString(now), Uri.EscapeDataString(userIdIsNameStr));
+            string sig = string.Format(BANS_CHECK_SIG, now, userId, ipAddr, userIdIsNameStr);
+
+            HttpRequestMessage req = new(HttpMethod.Get, url) {
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sig) },
+                },
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            return JsonSerializer.Deserialize<MisuzuBanInfo>(
+                await res.Content.ReadAsByteArrayAsync()
+            );
+        }
+
+        public async Task<MisuzuBanInfo[]?> GetBanListAsync() {
+            string now = DateTimeOffset.Now.ToUnixTimeSeconds().ToString();
+            string url = string.Format(BANS_LIST_URL, BaseURL, Uri.EscapeDataString(now));
+            string sig = string.Format(BANS_LIST_SIG, now);
+
+            HttpRequestMessage req = new(HttpMethod.Get, url) {
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sig) },
+                },
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            return JsonSerializer.Deserialize<MisuzuBanInfo[]>(
+                await res.Content.ReadAsByteArrayAsync()
+            );
+        }
+
+        public enum BanRevokeKind {
+            UserId,
+            RemoteAddress,
+        }
+
+        public async Task<bool> RevokeBanAsync(MisuzuBanInfo banInfo, BanRevokeKind kind) {
+            string type = kind switch {
+                BanRevokeKind.UserId => "user",
+                BanRevokeKind.RemoteAddress => "addr",
+                _ => throw new ArgumentException("Invalid kind specified.", nameof(kind)),
+            };
+
+            string target = kind switch {
+                BanRevokeKind.UserId => banInfo?.UserId ?? string.Empty,
+                BanRevokeKind.RemoteAddress => banInfo?.RemoteAddress ?? string.Empty,
+                _ => string.Empty,
+            };
+
+            string now = DateTimeOffset.Now.ToUnixTimeSeconds().ToString();
+            string url = string.Format(BANS_REVOKE_URL, BaseURL, Uri.EscapeDataString(type), Uri.EscapeDataString(target), Uri.EscapeDataString(now));
+            string sig = string.Format(BANS_REVOKE_SIG, now, type, target);
+
+            HttpRequestMessage req = new(HttpMethod.Delete, url) {
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sig) },
+                },
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            if(res.StatusCode == HttpStatusCode.NotFound)
+                return false;
+
+            res.EnsureSuccessStatusCode();
+
+            return res.StatusCode == HttpStatusCode.NoContent;
+        }
+
+        public async Task CreateBanAsync(
+            string targetId,
+            string targetAddr,
+            string modId,
+            string modAddr,
+            TimeSpan duration,
+            string reason
+        ) {
+            if(string.IsNullOrWhiteSpace(targetAddr))
+                throw new ArgumentException("targetAddr may not be empty", nameof(targetAddr));
+            if(string.IsNullOrWhiteSpace(modAddr))
+                throw new ArgumentException("modAddr may not be empty", nameof(modAddr));
+            if(duration <= TimeSpan.Zero)
+                return;
+
+            modId ??= string.Empty;
+            targetId ??= string.Empty;
+            reason ??= string.Empty;
+
+            string isPerma = duration == TimeSpan.MaxValue ? "1" : "0";
+            string durationStr = duration == TimeSpan.MaxValue ? "-1" : duration.TotalSeconds.ToString();
+
+            string now = DateTimeOffset.Now.ToUnixTimeSeconds().ToString();
+            string sig = string.Format(
+                BANS_CREATE_SIG,
+                now, targetId, targetAddr,
+                modId, modAddr,
+                durationStr, isPerma, reason
+            );
+
+            HttpRequestMessage req = new(HttpMethod.Post, string.Format(BANS_CREATE_URL, BaseURL)) {
+                Headers = {
+                    { "X-SharpChat-Signature", CreateStringSignature(sig) },
+                },
+                Content = new FormUrlEncodedContent(new Dictionary<string, string> {
+                    { "t", now },
+                    { "ui", targetId },
+                    { "ua", targetAddr },
+                    { "mi", modId },
+                    { "ma", modAddr },
+                    { "d", durationStr },
+                    { "p", isPerma },
+                    { "r", reason },
+                }),
+            };
+
+            using HttpResponseMessage res = await HttpClient.SendAsync(req);
+
+            res.EnsureSuccessStatusCode();
+        }
+    }
+}

SharpChat.Misuzu/SharpChat.Misuzu.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SharpChatCommon\SharpChatCommon.csproj" />
+  </ItemGroup>
+
+</Project>

SharpChat.SockChat/Commands/BanListCommand.cs

@@ -0,0 +1,36 @@
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.Commands {
+    public class BanListCommand : ISockChatClientCommand {
+        private readonly MisuzuClient Misuzu;
+
+        public BanListCommand(MisuzuClient msz) {
+            Misuzu = msz;
+        }
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("bans")
+                || ctx.NameEquals("banned");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.KickUser)
+                && !ctx.User.Permissions.HasFlag(UserPermissions.BanUser)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            Task.Run(async () => {
+                ctx.Chat.SendTo(ctx.User, new BanListResponseS2CPacket(
+                    (await Misuzu.GetBanListAsync() ?? Array.Empty<MisuzuBanInfo>()).Select(
+                        ban => string.IsNullOrEmpty(ban.UserName) ? (string.IsNullOrEmpty(ban.RemoteAddress) ? string.Empty : ban.RemoteAddress) : ban.UserName
+                    ).ToArray()
+                ));
+            }).Wait();
+        }
+    }
+}

SharpChat.SockChat/Commands/ChannelCreateCommand.cs

@@ -0,0 +1,66 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class ChannelCreateCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("create");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.CreateChannel)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string firstArg = ctx.Args.First();
+
+            bool createChanHasHierarchy;
+            if(!ctx.Args.Any() || (createChanHasHierarchy = firstArg.All(char.IsDigit) && ctx.Args.Length < 2)) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            int createChanHierarchy = 0;
+            if(createChanHasHierarchy)
+                if(!int.TryParse(firstArg, out createChanHierarchy))
+                    createChanHierarchy = 0;
+
+            if(createChanHierarchy > ctx.User.Rank) {
+                ctx.Chat.SendTo(ctx.User, new ChannelRankTooHighErrorS2CPacket());
+                return;
+            }
+
+            string channelName = string.Join('_', ctx.Args.Skip(createChanHasHierarchy ? 1 : 0));
+
+            if(!SockChatUtility.CheckChannelName(channelName)) {
+                ctx.Chat.SendTo(ctx.User, new ChannelNameFormatErrorS2CPacket());
+                return;
+            }
+
+            if(ctx.Chat.Channels.Get(channelName, SockChatUtility.SanitiseChannelName) != null) {
+                ctx.Chat.SendTo(ctx.User, new ChannelNameInUseErrorS2CPacket(channelName));
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch(
+                "chan:add",
+                channelName,
+                ctx.User,
+                new ChannelAddEventData(
+                    !ctx.User.Permissions.HasFlag(UserPermissions.SetChannelPermanent),
+                    createChanHierarchy,
+                    string.Empty
+                )
+            );
+
+            DateTimeOffset now = DateTimeOffset.UtcNow;
+            ctx.Chat.Events.Dispatch("chan:leave", now, ctx.Channel, ctx.User);
+            ctx.Chat.Events.Dispatch("chan:join", now, channelName, ctx.User);
+
+            ctx.Chat.SendTo(ctx.User, new ChannelCreateResponseS2CPacket(channelName));
+        }
+    }
+}

SharpChat.SockChat/Commands/ChannelDeleteCommand.cs

@@ -0,0 +1,36 @@
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class ChannelDeleteCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("delchan") || (
+                ctx.NameEquals("delete")
+                && ctx.Args.FirstOrDefault()?.All(char.IsDigit) == false
+            );
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.Args.Any() || string.IsNullOrWhiteSpace(ctx.Args.FirstOrDefault())) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            string delChanName = string.Join('_', ctx.Args);
+            ChannelInfo? delChan = ctx.Chat.Channels.Get(delChanName, SockChatUtility.SanitiseChannelName);
+
+            if(delChan == null) {
+                ctx.Chat.SendTo(ctx.User, new ChannelNotFoundErrorS2CPacket(delChanName));
+                return;
+            }
+
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.DeleteChannel) || delChan.OwnerId != ctx.User.UserId) {
+                ctx.Chat.SendTo(ctx.User, new ChannelDeleteNotAllowedErrorS2CPacket(delChan.Name));
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch("chan:delete", delChan, ctx.User);
+            ctx.Chat.SendTo(ctx.User, new ChannelDeleteResponseS2CPacket(delChan.Name));
+        }
+    }
+}

SharpChat.SockChat/Commands/ChannelJoinCommand.cs

@@ -0,0 +1,48 @@
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class ChannelJoinCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("join");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            string channelName = ctx.Args.FirstOrDefault() ?? string.Empty;
+            string password = string.Join(' ', ctx.Args.Skip(1));
+
+            ChannelInfo? channelInfo = ctx.Chat.Channels.Get(channelName, SockChatUtility.SanitiseChannelName);
+            if(channelInfo == null) {
+                ctx.Chat.SendTo(ctx.User, new ChannelNotFoundErrorS2CPacket(channelName));
+                ctx.Chat.SendTo(ctx.User, new UserChannelForceJoinS2CPacket(ctx.Channel.Name));
+                return;
+            }
+
+            if(channelInfo.Name.Equals(ctx.Channel.Name, StringComparison.InvariantCultureIgnoreCase)) {
+                // this is where the elusive commented out "samechan" error would go!
+                // https://patchii.net/sockchat/sockchat/src/commit/6c2111fb4b0241f9ef31060b0f86e7176664f572/server/lib/context.php#L61
+                ctx.Chat.SendTo(ctx.User, new UserChannelForceJoinS2CPacket(ctx.Channel.Name));
+                return;
+            }
+
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.JoinAnyChannel) && channelInfo.OwnerId != ctx.User.UserId) {
+                if(channelInfo.Rank > ctx.User.Rank) {
+                    ctx.Chat.SendTo(ctx.User, new ChannelRankTooLowErrorS2CPacket(channelInfo.Name));
+                    ctx.Chat.SendTo(ctx.User, new UserChannelForceJoinS2CPacket(ctx.Channel.Name));
+                    return;
+                }
+
+                if(!string.IsNullOrEmpty(channelInfo.Password) && channelInfo.Password.Equals(password)) {
+                    ctx.Chat.SendTo(ctx.User, new ChannelPasswordWrongErrorS2CPacket(channelInfo.Name));
+                    ctx.Chat.SendTo(ctx.User, new UserChannelForceJoinS2CPacket(ctx.Channel.Name));
+                    return;
+                }
+            }
+
+            DateTimeOffset now = DateTimeOffset.UtcNow;
+            ctx.Chat.Events.Dispatch("chan:leave", now, ctx.Channel, ctx.User);
+            ctx.Chat.Events.Dispatch("chan:join", now, channelInfo, ctx.User);
+        }
+    }
+}

SharpChat.SockChat/Commands/ChannelPasswordCommand.cs

@@ -0,0 +1,26 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+
+namespace SharpChat.SockChat.Commands {
+    public class ChannelPasswordCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("pwd")
+                || ctx.NameEquals("password");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.SetChannelPassword) || ctx.Channel.OwnerId != ctx.User.UserId) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string chanPass = string.Join(' ', ctx.Args).Trim();
+
+            if(string.IsNullOrWhiteSpace(chanPass))
+                chanPass = string.Empty;
+
+            ctx.Chat.Events.Dispatch("chan:update", ctx.Channel.Name, ctx.User, new ChannelUpdateEventData(password: chanPass));
+            ctx.Chat.SendTo(ctx.User, new ChannelPasswordChangedResponseS2CPacket());
+        }
+    }
+}

SharpChat.SockChat/Commands/ChannelRankCommand.cs

@@ -0,0 +1,28 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class ChannelRankCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("rank")
+                || ctx.NameEquals("privilege")
+                || ctx.NameEquals("priv");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.SetChannelHierarchy) || ctx.Channel.OwnerId != ctx.User.UserId) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            if(!ctx.Args.Any() || !int.TryParse(ctx.Args.First(), out int chanMinRank) || chanMinRank > ctx.User.Rank) {
+                ctx.Chat.SendTo(ctx.User, new ChannelRankTooHighErrorS2CPacket());
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch("chan:update", ctx.Channel.Name, ctx.User, new ChannelUpdateEventData(minRank: chanMinRank));
+            ctx.Chat.SendTo(ctx.User, new ChannelRankChangedResponseS2CPacket());
+        }
+    }
+}

SharpChat.SockChat/Commands/ISockChatClientCommand.cs

@@ -0,0 +1,6 @@
+namespace SharpChat.SockChat.Commands {
+    public interface ISockChatClientCommand {
+        bool IsMatch(SockChatClientCommandContext ctx);
+        void Dispatch(SockChatClientCommandContext ctx);
+    }
+}

SharpChat.SockChat/Commands/KickBanCommand.cs

@@ -0,0 +1,86 @@
+using SharpChat.Events;
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.Commands {
+    public class KickBanCommand : ISockChatClientCommand {
+        private readonly MisuzuClient Misuzu;
+
+        public KickBanCommand(MisuzuClient msz) {
+            Misuzu = msz;
+        }
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("kick")
+                || ctx.NameEquals("ban");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            bool isBanning = ctx.NameEquals("ban");
+
+            if(!ctx.User.Permissions.HasFlag(isBanning ? UserPermissions.BanUser : UserPermissions.KickUser)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string banUserTarget = ctx.Args.ElementAtOrDefault(0) ?? string.Empty;
+            string? banDurationStr = ctx.Args.ElementAtOrDefault(1);
+            int banReasonIndex = 1;
+            UserInfo? banUser = null;
+
+            (string name, UsersContext.NameTarget target) = SockChatUtility.ExplodeUserName(banUserTarget);
+            if(string.IsNullOrEmpty(name) || (banUser = ctx.Chat.Users.Get(name: name, nameTarget: target)) == null) {
+                ctx.Chat.SendTo(ctx.User, new UserNotFoundErrorS2CPacket(banUserTarget));
+                return;
+            }
+
+            if(!ctx.User.IsSuper && banUser.Rank >= ctx.User.Rank && banUser != ctx.User) {
+                ctx.Chat.SendTo(ctx.User, new KickBanNotAllowedErrorS2CPacket(SockChatUtility.GetUserName(banUser)));
+                return;
+            }
+
+            TimeSpan duration = isBanning ? TimeSpan.MaxValue : TimeSpan.Zero;
+            if(!string.IsNullOrWhiteSpace(banDurationStr) && double.TryParse(banDurationStr, out double durationSeconds)) {
+                if(durationSeconds < 0) {
+                    ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                    return;
+                }
+
+                duration = TimeSpan.FromSeconds(durationSeconds);
+                ++banReasonIndex;
+            }
+
+            if(duration <= TimeSpan.Zero) {
+                ctx.Chat.Events.Dispatch("user:kickban", banUser, UserKickBanEventData.OfDuration(UserDisconnectReason.Kicked, TimeSpan.Zero));
+                return;
+            }
+
+            string banReason = string.Join(' ', ctx.Args.Skip(banReasonIndex));
+
+            Task.Run(async () => {
+                string userId = banUser.UserId.ToString();
+
+                MisuzuBanInfo? fbi = await Misuzu.CheckBanAsync(userId);
+                if(fbi != null && fbi.IsBanned && !fbi.HasExpired) {
+                    ctx.Chat.SendTo(ctx.User, new KickBanNotAllowedErrorS2CPacket(SockChatUtility.GetUserName(banUser)));
+                    return;
+                }
+
+                string[] userRemoteAddrs = ctx.Chat.Connections.GetUserRemoteAddresses(banUser);
+                string userRemoteAddr = string.Format(", ", userRemoteAddrs);
+
+                // Misuzu only stores the IP address in private comment and doesn't do any checking, so this is fine.
+                await Misuzu.CreateBanAsync(
+                    userId, userRemoteAddr,
+                    ctx.User.UserId.ToString(), ctx.Connection.RemoteAddress,
+                    duration, banReason
+                );
+
+                ctx.Chat.Events.Dispatch("user:kickban", banUser, UserKickBanEventData.OfDuration(UserDisconnectReason.Kicked, duration));
+            }).Wait();
+        }
+    }
+}

SharpChat.SockChat/Commands/MessageActionCommand.cs

@@ -0,0 +1,22 @@
+using SharpChat.Events;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class MessageActionCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("action")
+                || ctx.NameEquals("me");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.Args.Any())
+                return;
+
+            string actionStr = string.Join(' ', ctx.Args);
+            if(string.IsNullOrWhiteSpace(actionStr))
+                return;
+
+            ctx.Chat.Events.Dispatch("msg:add", ctx.Channel, ctx.User, new MessageAddEventData(actionStr, true));
+        }
+    }
+}

SharpChat.SockChat/Commands/MessageBroadcastCommand.cs

@@ -0,0 +1,24 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+
+namespace SharpChat.SockChat.Commands {
+    public class MessageBroadcastCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("say")
+                || ctx.NameEquals("broadcast");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.Broadcast)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch(
+                "msg:add",
+                ctx.User,
+                new MessageAddEventData(string.Join(' ', ctx.Args))
+            );
+        }
+    }
+}

SharpChat.SockChat/Commands/MessageDeleteCommand.cs

@@ -0,0 +1,42 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class MessageDeleteCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("delmsg") || (
+                ctx.NameEquals("delete")
+                && ctx.Args.FirstOrDefault()?.All(char.IsDigit) == true
+            );
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            bool deleteAnyMessage = ctx.User.Permissions.HasFlag(UserPermissions.DeleteAnyMessage);
+
+            if(!deleteAnyMessage && !ctx.User.Permissions.HasFlag(UserPermissions.DeleteOwnMessage)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string? firstArg = ctx.Args.FirstOrDefault();
+
+            if(string.IsNullOrWhiteSpace(firstArg) || !firstArg.All(char.IsDigit) || !long.TryParse(firstArg, out long eventId)) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            ChatEventInfo? eventInfo = ctx.Chat.EventStorage.GetEvent(eventId);
+
+            if(eventInfo == null
+                || !eventInfo.Type.Equals("msg:add")
+                || eventInfo.SenderRank > ctx.User.Rank
+                || (!deleteAnyMessage && eventInfo.SenderId != ctx.User.UserId)) {
+                ctx.Chat.SendTo(ctx.User, new MessageDeleteNotAllowedErrorS2CPacket());
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch("msg:delete", eventInfo.ChannelName, ctx.User, new MessageDeleteEventData(eventInfo.Id.ToString()));
+        }
+    }
+}

SharpChat.SockChat/Commands/MessageWhisperCommand.cs

@@ -0,0 +1,38 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class MessageWhisperCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("whisper")
+                || ctx.NameEquals("msg");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(ctx.Args.Length < 2) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            string whisperUserStr = ctx.Args.FirstOrDefault() ?? string.Empty;
+            (string name, UsersContext.NameTarget target) = SockChatUtility.ExplodeUserName(whisperUserStr);
+            UserInfo? whisperUser = ctx.Chat.Users.Get(name: name, nameTarget: target);
+
+            if(whisperUser == null) {
+                ctx.Chat.SendTo(ctx.User, new UserNotFoundErrorS2CPacket(whisperUserStr));
+                return;
+            }
+
+            if(whisperUser == ctx.User)
+                return;
+
+            ctx.Chat.Events.Dispatch(
+                "msg:add",
+                UserInfo.GetDMChannelName(ctx.User, whisperUser),
+                ctx.User,
+                new MessageAddEventData(string.Join(' ', ctx.Args.Skip(1)))
+            );
+        }
+    }
+}

SharpChat.SockChat/Commands/PardonAddressCommand.cs

@@ -0,0 +1,51 @@
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+using System.Net;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.Commands {
+    public class PardonAddressCommand : ISockChatClientCommand {
+        private readonly MisuzuClient Misuzu;
+
+        public PardonAddressCommand(MisuzuClient msz) {
+            Misuzu = msz;
+        }
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("pardonip")
+                || ctx.NameEquals("unbanip");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.KickUser)
+                && !ctx.User.Permissions.HasFlag(UserPermissions.BanUser)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string? unbanAddrTarget = ctx.Args.FirstOrDefault();
+            if(string.IsNullOrWhiteSpace(unbanAddrTarget) || !IPAddress.TryParse(unbanAddrTarget, out IPAddress? unbanAddr)) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            unbanAddrTarget = unbanAddr.ToString();
+
+            Task.Run(async () => {
+                MisuzuBanInfo? banInfo = await Misuzu.CheckBanAsync(ipAddr: unbanAddrTarget);
+
+                if(banInfo?.IsBanned != true || banInfo.HasExpired) {
+                    ctx.Chat.SendTo(ctx.User, new KickBanNoRecordErrorS2CPacket(unbanAddrTarget));
+                    return;
+                }
+
+                bool wasBanned = await Misuzu.RevokeBanAsync(banInfo, MisuzuClient.BanRevokeKind.RemoteAddress);
+                if(wasBanned)
+                    ctx.Chat.SendTo(ctx.User, new PardonResponseS2CPacket(unbanAddrTarget));
+                else
+                    ctx.Chat.SendTo(ctx.User, new KickBanNoRecordErrorS2CPacket(unbanAddrTarget));
+            }).Wait();
+        }
+    }
+}

SharpChat.SockChat/Commands/PardonUserCommand.cs

@@ -0,0 +1,59 @@
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.Commands {
+    public class PardonUserCommand : ISockChatClientCommand {
+        private readonly MisuzuClient Misuzu;
+
+        public PardonUserCommand(MisuzuClient msz) {
+            Misuzu = msz;
+        }
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("pardon")
+                || ctx.NameEquals("unban");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.KickUser)
+                && !ctx.User.Permissions.HasFlag(UserPermissions.BanUser)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            bool unbanUserTargetIsName = true;
+            string? unbanUserTarget = ctx.Args.FirstOrDefault();
+            if(string.IsNullOrWhiteSpace(unbanUserTarget)) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            (string name, UsersContext.NameTarget target) = SockChatUtility.ExplodeUserName(unbanUserTarget);
+            UserInfo? unbanUser = ctx.Chat.Users.Get(name: name, nameTarget: target);
+            if(unbanUser == null && long.TryParse(unbanUserTarget, out long unbanUserId)) {
+                unbanUserTargetIsName = false;
+                unbanUser = ctx.Chat.Users.Get(unbanUserId);
+            }
+
+            if(unbanUser != null)
+                unbanUserTarget = unbanUser.UserId.ToString();
+
+            Task.Run(async () => {
+                MisuzuBanInfo? banInfo = await Misuzu.CheckBanAsync(unbanUserTarget, userIdIsName: unbanUserTargetIsName);
+
+                if(banInfo?.IsBanned != true || banInfo.HasExpired) {
+                    ctx.Chat.SendTo(ctx.User, new KickBanNoRecordErrorS2CPacket(unbanUserTarget));
+                    return;
+                }
+
+                bool wasBanned = await Misuzu.RevokeBanAsync(banInfo, MisuzuClient.BanRevokeKind.UserId);
+                if(wasBanned)
+                    ctx.Chat.SendTo(ctx.User, new PardonResponseS2CPacket(unbanUserTarget));
+                else
+                    ctx.Chat.SendTo(ctx.User, new KickBanNoRecordErrorS2CPacket(unbanUserTarget));
+            }).Wait();
+        }
+    }
+}

SharpChat.SockChat/Commands/ShutdownRestartCommand.cs

@@ -0,0 +1,40 @@
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Threading;
+
+namespace SharpChat.SockChat.Commands {
+    public class ShutdownRestartCommand : ISockChatClientCommand {
+        private readonly ManualResetEvent WaitHandle;
+        private readonly Func<bool> ShuttingDown;
+        private readonly Action<bool> SetShutdown;
+
+        public ShutdownRestartCommand(
+            ManualResetEvent waitHandle,
+            Func<bool> shuttingDown,
+            Action<bool> setShutdown
+        ) {
+            WaitHandle = waitHandle;
+            ShuttingDown = shuttingDown;
+            SetShutdown = setShutdown;
+        }
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("shutdown")
+                || ctx.NameEquals("restart");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(ctx.User.UserId != 1) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            if(ShuttingDown())
+                return;
+
+            SetShutdown(ctx.NameEquals("restart"));
+            ctx.Chat.Update();
+            WaitHandle?.Set();
+        }
+    }
+}

SharpChat.SockChat/Commands/SockChatClientCommandContext.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class SockChatClientCommandContext {
+        public string Name { get; }
+        public string[] Args { get; }
+        public SockChatContext Chat { get; }
+        public UserInfo User { get; }
+        public ConnectionInfo Connection { get; }
+        public ChannelInfo Channel { get; }
+
+        public SockChatClientCommandContext(
+            string text,
+            SockChatContext chat,
+            UserInfo user,
+            ConnectionInfo connection,
+            ChannelInfo channel
+        ) {
+            Chat = chat;
+            User = user;
+            Connection = connection;
+            Channel = channel;
+
+            string[] parts = text[1..].Split(' ');
+            Name = parts.First().Replace(".", string.Empty);
+            Args = parts.Skip(1).ToArray();
+        }
+
+        public bool NameEquals(string name) {
+            return Name.Equals(name, StringComparison.InvariantCultureIgnoreCase);
+        }
+    }
+}

SharpChat.SockChat/Commands/UserAFKCommand.cs

@@ -0,0 +1,30 @@
+using SharpChat.Events;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class UserAFKCommand : ISockChatClientCommand {
+        private const string DEFAULT = "AFK";
+        private const int MAX_LENGTH = 5;
+
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("afk");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            string? statusText = ctx.Args.FirstOrDefault();
+            if(string.IsNullOrWhiteSpace(statusText))
+                statusText = DEFAULT;
+            else {
+                statusText = statusText.Trim();
+                if(statusText.Length > MAX_LENGTH)
+                    statusText = statusText[..MAX_LENGTH].Trim();
+            }
+
+            ctx.Chat.Events.Dispatch(
+                "user:status",
+                ctx.User,
+                new UserStatusUpdateEventData(UserStatus.Away, statusText)
+            );
+        }
+    }
+}

SharpChat.SockChat/Commands/UserNickCommand.cs

@@ -0,0 +1,61 @@
+using SharpChat.Events;
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class UserNickCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("nick");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            bool setOthersNick = ctx.User.Permissions.HasFlag(UserPermissions.SetOthersNickname);
+
+            if(!setOthersNick && !ctx.User.Permissions.HasFlag(UserPermissions.SetOwnNickname)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            UserInfo? targetUser = null;
+            int offset = 0;
+
+            if(setOthersNick && long.TryParse(ctx.Args.FirstOrDefault(), out long targetUserId) && targetUserId > 0) {
+                targetUser = ctx.Chat.Users.Get(targetUserId);
+                ++offset;
+            }
+
+            targetUser ??= ctx.User;
+
+            if(ctx.Args.Length < offset) {
+                ctx.Chat.SendTo(ctx.User, new CommandFormatErrorS2CPacket());
+                return;
+            }
+
+            string nickStr = string.Join('_', ctx.Args.Skip(offset))
+                .Replace("\n", string.Empty).Replace("\r", string.Empty)
+                .Replace("\f", string.Empty).Replace("\t", string.Empty)
+                .Replace(' ', '_').Trim();
+
+            if(nickStr == targetUser.UserName)
+                nickStr = string.Empty;
+            else if(nickStr.Length > 15)
+                nickStr = nickStr[..15];
+
+            if(string.IsNullOrWhiteSpace(nickStr))
+                nickStr = string.Empty;
+            else if(ctx.Chat.Users.Get(name: nickStr, nameTarget: UsersContext.NameTarget.UserAndNickName) != null) {
+                ctx.Chat.SendTo(ctx.User, new UserNameInUseErrorS2CPacket(nickStr));
+                return;
+            }
+
+            ctx.Chat.Events.Dispatch(
+                "user:update",
+                targetUser,
+                new UserUpdateEventData(
+                    nickName: nickStr,
+                    notify: targetUser.UserId == ctx.User.UserId
+                )
+            );
+        }
+    }
+}

SharpChat.SockChat/Commands/WhoCommand.cs

@@ -0,0 +1,44 @@
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class WhoCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("who");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            string? channelName = ctx.Args.FirstOrDefault();
+
+            if(string.IsNullOrEmpty(channelName)) {
+                ctx.Chat.SendTo(ctx.User, new WhoServerResponseS2CPacket(
+                    ctx.Chat.Users.All.Select(u => SockChatUtility.GetUserName(u, ctx.Chat.UserStatuses.Get(u))).ToArray(),
+                    SockChatUtility.GetUserName(ctx.User)
+                ));
+                return;
+            }
+
+            ChannelInfo? channel = ctx.Chat.Channels.Get(channelName, SockChatUtility.SanitiseChannelName);
+
+            if(channel == null) {
+                ctx.Chat.SendTo(ctx.User, new ChannelNotFoundErrorS2CPacket(channelName));
+                return;
+            }
+
+            if(channel.Rank > ctx.User.Rank || (channel.HasPassword && !ctx.User.Permissions.HasFlag(UserPermissions.JoinAnyChannel))) {
+                ctx.Chat.SendTo(ctx.User, new WhoChannelNotFoundErrorS2CPacket(channelName));
+                return;
+            }
+
+            UserInfo[] userInfos = ctx.Chat.Users.GetMany(
+                ctx.Chat.ChannelsUsers.GetChannelUserIds(channel)
+            );
+
+            ctx.Chat.SendTo(ctx.User, new WhoChannelResponseS2CPacket(
+                channel.Name,
+                userInfos.Select(user => SockChatUtility.GetUserName(user, ctx.Chat.UserStatuses.Get(user))).ToArray(),
+                SockChatUtility.GetUserName(ctx.User, ctx.Chat.UserStatuses.Get(ctx.User))
+            ));
+        }
+    }
+}

SharpChat.SockChat/Commands/WhoisCommand.cs

@@ -0,0 +1,30 @@
+using SharpChat.SockChat.PacketsS2C;
+using System.Linq;
+
+namespace SharpChat.SockChat.Commands {
+    public class WhoisCommand : ISockChatClientCommand {
+        public bool IsMatch(SockChatClientCommandContext ctx) {
+            return ctx.NameEquals("ip")
+                || ctx.NameEquals("whois");
+        }
+
+        public void Dispatch(SockChatClientCommandContext ctx) {
+            if(!ctx.User.Permissions.HasFlag(UserPermissions.SeeIPAddress)) {
+                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
+                return;
+            }
+
+            string ipUserStr = ctx.Args.FirstOrDefault() ?? string.Empty;
+            UserInfo? ipUser;
+
+            (string name, UsersContext.NameTarget target) = SockChatUtility.ExplodeUserName(ipUserStr);
+            if(string.IsNullOrWhiteSpace(name) || (ipUser = ctx.Chat.Users.Get(name: name, nameTarget: target)) == null) {
+                ctx.Chat.SendTo(ctx.User, new UserNotFoundErrorS2CPacket(ipUserStr));
+                return;
+            }
+
+            foreach(string remoteAddr in ctx.Chat.Connections.GetUserRemoteAddresses(ipUser))
+                ctx.Chat.SendTo(ctx.User, new WhoisResponseS2CPacket(ipUser.UserName, remoteAddr));
+        }
+    }
+}

SharpChat.SockChat/PacketsC2S/AuthC2SPacketHandler.cs

@@ -0,0 +1,237 @@
+using SharpChat.Config;
+using SharpChat.Events;
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.PacketsC2S {
+    public class AuthC2SPacketHandler : IC2SPacketHandler {
+        public const string MOTD_FILE = @"welcome.txt";
+
+        private readonly DateTimeOffset Started;
+        private readonly MisuzuClient Misuzu;
+        private readonly ChannelInfo DefaultChannel;
+        private readonly CachedValue<string> MOTDHeaderFormat;
+        private readonly CachedValue<int> MaxMessageLength;
+        private readonly CachedValue<int> MaxConnections;
+
+        public AuthC2SPacketHandler(
+            DateTimeOffset started,
+            MisuzuClient msz,
+            ChannelInfo? defaultChannel,
+            CachedValue<string> motdHeaderFormat,
+            CachedValue<int> maxMsgLength,
+            CachedValue<int> maxConns
+        ) {
+            Started = started;
+            Misuzu = msz;
+            DefaultChannel = defaultChannel ?? throw new ArgumentNullException(nameof(defaultChannel));
+            MOTDHeaderFormat = motdHeaderFormat;
+            MaxMessageLength = maxMsgLength;
+            MaxConnections = maxConns;
+        }
+
+        public bool IsMatch(C2SPacketHandlerContext ctx) {
+            return ctx.CheckPacketId("1");
+        }
+
+        public void Handle(C2SPacketHandlerContext ctx) {
+            string[] args = ctx.SplitText(3);
+
+            string? authMethod = args.ElementAtOrDefault(1);
+            if(string.IsNullOrWhiteSpace(authMethod)) {
+                ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.AuthInvalid));
+                ctx.Connection.Close(1000);
+                return;
+            }
+
+            string? authToken = args.ElementAtOrDefault(2);
+            if(string.IsNullOrWhiteSpace(authToken)) {
+                ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.AuthInvalid));
+                ctx.Connection.Close(1000);
+                return;
+            }
+
+            if(authMethod.All(c => c is >= '0' and <= '9') && authToken.Contains(':')) {
+                string[] tokenParts = authToken.Split(':', 2);
+                authMethod = tokenParts[0];
+                authToken = tokenParts[1];
+            }
+
+            Task.Run(async () => {
+                MisuzuAuthInfo? fai;
+                string ipAddr = ctx.Connection.RemoteAddress;
+
+                try {
+                    fai = await Misuzu.AuthVerifyAsync(authMethod, authToken, ipAddr);
+                } catch(Exception ex) {
+                    Logger.Write($"<{ctx.Connection.RemoteEndPoint}> Failed to authenticate: {ex}");
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.AuthInvalid));
+                    ctx.Connection.Close(1000);
+#if DEBUG
+                    throw;
+#else
+                    return;
+#endif
+                }
+
+                if(fai == null) {
+                    Logger.Debug($"<{ctx.Connection.RemoteEndPoint}> Auth fail: <null>");
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.Null));
+                    ctx.Connection.Close(1000);
+                    return;
+                }
+
+                if(!fai.Success) {
+                    Logger.Debug($"<{ctx.Connection.RemoteEndPoint}> Auth fail: {fai.Reason}");
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.AuthInvalid));
+                    ctx.Connection.Close(1000);
+                    return;
+                }
+
+                MisuzuBanInfo? fbi;
+                try {
+                    fbi = await Misuzu.CheckBanAsync(fai.UserId.ToString(), ipAddr);
+                } catch(Exception ex) {
+                    Logger.Write($"<{ctx.Connection.RemoteEndPoint}> Failed auth ban check: {ex}");
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.AuthInvalid));
+                    ctx.Connection.Close(1000);
+#if DEBUG
+                    throw;
+#else
+                    return;
+#endif
+                }
+
+                if(fbi == null) {
+                    Logger.Debug($"<{ctx.Connection.RemoteEndPoint}> Ban check fail: <null>");
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.Null));
+                    ctx.Connection.Close(1000);
+                    return;
+                }
+
+                if(fbi.IsBanned && !fbi.HasExpired) {
+                    Logger.Write($"<{ctx.Connection.RemoteEndPoint}> User is banned.");
+                    ctx.Connection.Send(new AuthFailS2CPacket(fbi.ExpiresAt));
+                    ctx.Connection.Close(1000);
+                    return;
+                }
+
+                if(ctx.Chat.Connections.GetCountForUser(fai.UserId) >= MaxConnections) {
+                    ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.MaxSessions));
+                    ctx.Connection.Close(1000);
+                    return;
+                }
+
+                await ctx.Chat.ContextAccess.WaitAsync();
+                try {
+                    UserInfo? user = ctx.Chat.Users.Get(fai.UserId);
+
+                    if(user == null) {
+                        ctx.Chat.Events.Dispatch(
+                            "user:add",
+                            fai.UserId,
+                            fai.UserName ?? string.Empty,
+                            fai.Colour,
+                            fai.Rank,
+                            string.Empty,
+                            fai.Permissions,
+                            new UserAddEventData(fai.IsSuper)
+                        );
+
+                        user = ctx.Chat.Users.Get(fai.UserId);
+                        if(user == null) {
+                            Logger.Write($"<{ctx.Connection.RemoteEndPoint}> User didn't get added.");
+                            ctx.Connection.Send(new AuthFailS2CPacket(AuthFailS2CPacket.FailReason.Null));
+                            ctx.Connection.Close(1000);
+                            return;
+                        }
+                    } else {
+                        string? updName = !user.UserName.Equals(fai.UserName) ? fai.UserName : null;
+                        int? updColour = (updColour = fai.Colour.ToMisuzu()) != user.Colour.ToMisuzu() ? updColour : null;
+                        int? updRank = user.Rank != fai.Rank ? fai.Rank : null;
+                        UserPermissions? updPerms = user.Permissions != fai.Permissions ? fai.Permissions : null;
+                        bool? updSuper = user.IsSuper != fai.IsSuper ? fai.IsSuper : null;
+
+                        if(updName != null || updColour != null || updRank != null || updPerms != null || updSuper != null)
+                            ctx.Chat.Events.Dispatch(
+                                "user:update",
+                                user,
+                                new UserUpdateEventData(
+                                    name: updName,
+                                    colour: updColour,
+                                    rank: updRank,
+                                    perms: updPerms,
+                                    isSuper: updSuper
+                                )
+                            );
+                    }
+
+                    ctx.Connection.BumpPing();
+                    ctx.Chat.Connections.SetUser(ctx.Connection, user);
+
+                    if(!string.IsNullOrWhiteSpace(MOTDHeaderFormat.Value))
+                        ctx.Connection.Send(new MOTDS2CPacket(Started, string.Format(MOTDHeaderFormat.Value, user.UserName)));
+
+                    if(File.Exists(MOTD_FILE)) {
+                        IEnumerable<string> lines = File.ReadAllLines(MOTD_FILE).Where(x => !string.IsNullOrWhiteSpace(x));
+                        string? line = lines.ElementAtOrDefault(RNG.Next(lines.Count()));
+
+                        if(!string.IsNullOrWhiteSpace(line))
+                            ctx.Connection.Send(new MOTDS2CPacket(File.GetLastWriteTimeUtc(MOTD_FILE), line));
+                    }
+
+                    ctx.Connection.Send(new AuthSuccessS2CPacket(
+                        user.UserId,
+                        SockChatUtility.GetUserName(user, ctx.Chat.UserStatuses.Get(user)),
+                        user.Colour,
+                        user.Rank,
+                        user.Permissions,
+                        DefaultChannel.Name,
+                        MaxMessageLength
+                    ));
+
+                    UserInfo[] chanUsers = ctx.Chat.Users.GetMany(
+                        ctx.Chat.ChannelsUsers.GetChannelUserIds(DefaultChannel)
+                    );
+                    List<UsersPopulateS2CPacket.ListEntry> chanUserEntries = new();
+                    foreach(UserInfo chanUserInfo in chanUsers)
+                        if(chanUserInfo.UserId != user.UserId)
+                            chanUserEntries.Add(new(
+                                chanUserInfo.UserId,
+                                SockChatUtility.GetUserName(chanUserInfo, ctx.Chat.UserStatuses.Get(chanUserInfo)),
+                                chanUserInfo.Colour,
+                                chanUserInfo.Rank,
+                                chanUserInfo.Permissions,
+                                true
+                            ));
+                    ctx.Connection.Send(new UsersPopulateS2CPacket(chanUserEntries.ToArray()));
+
+                    ctx.Chat.Events.Dispatch(
+                        "user:connect",
+                        DefaultChannel,
+                        user,
+                        new UserConnectEventData(!ctx.Chat.ChannelsUsers.Has(DefaultChannel, user))
+                    );
+                    ctx.Chat.HandleChannelEventLog(DefaultChannel.Name, p => ctx.Connection.Send(p));
+
+                    ChannelInfo[] chans = ctx.Chat.Channels.GetMany(isPublic: true, minRank: user.Rank);
+                    List<ChannelsPopulateS2CPacket.ListEntry> chanEntries = new();
+                    foreach(ChannelInfo chanInfo in chans)
+                        chanEntries.Add(new(
+                            chanInfo.Name,
+                            chanInfo.HasPassword,
+                            chanInfo.IsTemporary
+                        ));
+                    ctx.Connection.Send(new ChannelsPopulateS2CPacket(chanEntries.ToArray()));
+                } finally {
+                    ctx.Chat.ContextAccess.Release();
+                }
+            }).Wait();
+        }
+    }
+}

SharpChat.SockChat/PacketsC2S/C2SPacketHandlerContext.cs

@@ -0,0 +1,21 @@
+namespace SharpChat.SockChat.PacketsC2S {
+    public class C2SPacketHandlerContext {
+        public string Text { get; }
+        public SockChatContext Chat { get; }
+        public SockChatConnectionInfo Connection { get; }
+
+        public C2SPacketHandlerContext(string text, SockChatContext chat, SockChatConnectionInfo connection) {
+            Text = text;
+            Chat = chat;
+            Connection = connection;
+        }
+
+        public bool CheckPacketId(string packetId) {
+            return Text == packetId || Text.StartsWith(packetId + '\t');
+        }
+
+        public string[] SplitText(int expect) {
+            return Text.Split('\t', expect + 1);
+        }
+    }
+}

SharpChat.SockChat/PacketsC2S/IC2SPacketHandler.cs

@@ -0,0 +1,6 @@
+namespace SharpChat.SockChat.PacketsC2S {
+    public interface IC2SPacketHandler {
+        bool IsMatch(C2SPacketHandlerContext ctx);
+        void Handle(C2SPacketHandlerContext ctx);
+    }
+}

SharpChat.SockChat/PacketsC2S/PingC2SPacketHandler.cs

@@ -0,0 +1,60 @@
+using SharpChat.Misuzu;
+using SharpChat.SockChat.PacketsS2C;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace SharpChat.SockChat.PacketsC2S {
+    public class PingC2SPacketHandler : IC2SPacketHandler {
+        private readonly MisuzuClient Misuzu;
+
+        private readonly TimeSpan BumpInterval = TimeSpan.FromMinutes(1);
+        private DateTimeOffset LastBump = DateTimeOffset.MinValue;
+
+        public PingC2SPacketHandler(MisuzuClient msz) {
+            Misuzu = msz;
+        }
+
+        public bool IsMatch(C2SPacketHandlerContext ctx) {
+            return ctx.CheckPacketId("0");
+        }
+
+        public void Handle(C2SPacketHandlerContext ctx) {
+            string[] parts = ctx.SplitText(2);
+
+            if(!int.TryParse(parts.FirstOrDefault(), out int pTime))
+                return;
+
+            ctx.Connection.BumpPing();
+            ctx.Connection.Send(new PongS2CPacket());
+
+            ctx.Chat.ContextAccess.Wait();
+            try {
+                if(LastBump < DateTimeOffset.UtcNow - BumpInterval) {
+                    List<(string, string)> bumpList = new();
+
+                    foreach(UserInfo userInfo in ctx.Chat.Users.All) {
+                        if(ctx.Chat.UserStatuses.GetStatus(userInfo) != UserStatus.Online)
+                            continue;
+
+                        string[] remoteAddrs = ctx.Chat.Connections.GetUserRemoteAddresses(userInfo);
+                        if(remoteAddrs.Length < 1)
+                            continue;
+
+                        bumpList.Add((userInfo.UserId.ToString(), remoteAddrs[0]));
+                    }
+
+                    if(bumpList.Count > 0)
+                        Task.Run(async () => {
+                            await Misuzu.BumpUsersOnlineAsync(bumpList);
+                        }).Wait();
+
+                    LastBump = DateTimeOffset.UtcNow;
+                }
+            } finally {
+                ctx.Chat.ContextAccess.Release();
+            }
+        }
+    }
+}

SharpChat.SockChat/PacketsC2S/SendMessageC2SPacketHandler.cs

@@ -0,0 +1,92 @@
+using SharpChat.Config;
+using SharpChat.Events;
+using SharpChat.SockChat.Commands;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace SharpChat.SockChat.PacketsC2S {
+    public class SendMessageC2SPacketHandler : IC2SPacketHandler {
+        private readonly CachedValue<int> MaxMessageLength;
+
+        private List<ISockChatClientCommand> Commands { get; } = new();
+
+        public SendMessageC2SPacketHandler(CachedValue<int> maxMsgLength) {
+            MaxMessageLength = maxMsgLength;
+        }
+
+        public void AddCommand(ISockChatClientCommand command) {
+            Commands.Add(command);
+        }
+
+        public void AddCommands(IEnumerable<ISockChatClientCommand> commands) {
+            Commands.AddRange(commands);
+        }
+
+        public bool IsMatch(C2SPacketHandlerContext ctx) {
+            return ctx.CheckPacketId("2");
+        }
+
+        public void Handle(C2SPacketHandlerContext ctx) {
+            string[] args = ctx.SplitText(3);
+
+            UserInfo? user = ctx.Chat.Users.Get(ctx.Connection.UserId);
+
+            // No longer concats everything after index 1 with \t, no previous implementation did that either
+            string? messageText = args.ElementAtOrDefault(2);
+
+            if(user == null || !user.Permissions.HasFlag(UserPermissions.SendMessage) || string.IsNullOrWhiteSpace(messageText))
+                return;
+
+            // Extra validation step, not necessary at all but enforces proper formatting in SCv1.
+            if(!long.TryParse(args[1], out long mUserId) || user.UserId != mUserId)
+                return;
+
+            ctx.Chat.ContextAccess.Wait();
+            try {
+                ChannelInfo? channelInfo = ctx.Chat.Channels.Get(
+                    ctx.Chat.ChannelsUsers.GetUserLastChannel(user)
+                );
+                if(channelInfo == null)
+                    return;
+
+                if(ctx.Chat.UserStatuses.GetStatus(user) != UserStatus.Online)
+                    ctx.Chat.Events.Dispatch(
+                        "user:status",
+                        user,
+                        new UserStatusUpdateEventData(UserStatus.Online)
+                    );
+
+                int maxMsgLength = MaxMessageLength;
+                if(messageText.Length > maxMsgLength)
+                    messageText = messageText[..maxMsgLength];
+
+                messageText = messageText.Trim();
+
+#if DEBUG
+                Logger.Write($"<{user.UserId} {user.UserName}> {messageText}");
+#endif
+
+                if(messageText.StartsWith("/")) {
+                    SockChatClientCommandContext context = new(messageText, ctx.Chat, user, ctx.Connection, channelInfo);
+
+                    ISockChatClientCommand? command = null;
+
+                    foreach(ISockChatClientCommand cmd in Commands)
+                        if(cmd.IsMatch(context)) {
+                            command = cmd;
+                            break;
+                        }
+
+                    if(command != null) {
+                        command.Dispatch(context);
+                        return;
+                    }
+                }
+
+                ctx.Chat.Events.Dispatch("msg:add", channelInfo, user, new MessageAddEventData(messageText));
+            } finally {
+                ctx.Chat.ContextAccess.Release();
+            }
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/AuthFailS2CPacket.cs

@@ -0,0 +1,38 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class AuthFailS2CPacket : ISockChatS2CPacket {
+        public enum FailReason {
+            AuthInvalid,
+            MaxSessions,
+            Banned,
+            Null,
+        }
+
+        private readonly FailReason Reason;
+        private readonly long Expires;
+
+        public AuthFailS2CPacket(FailReason reason) {
+            Reason = reason;
+        }
+
+        public AuthFailS2CPacket(DateTimeOffset expires) {
+            Reason = FailReason.Banned;
+            Expires = expires.Year >= 2100 ? -1 : expires.ToUnixTimeSeconds();
+        }
+
+        public string Pack() {
+            string packet = string.Format("1\tn\t{0}fail", Reason switch {
+                FailReason.AuthInvalid => "auth",
+                FailReason.MaxSessions => "sock",
+                FailReason.Banned => "join",
+                _ => "user",
+            });
+
+            if(Reason == FailReason.Banned)
+                packet += string.Format("\t{0}", Expires);
+
+            return packet;
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/AuthSuccessS2CPacket.cs

@@ -0,0 +1,47 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class AuthSuccessS2CPacket : ISockChatS2CPacket {
+        private readonly long UserId;
+        private readonly string UserName;
+        private readonly Colour UserColour;
+        private readonly int UserRank;
+        private readonly UserPermissions UserPerms;
+        private readonly string ChannelName;
+        private readonly int MaxMessageLength;
+
+        public AuthSuccessS2CPacket(
+            long userId,
+            string userName,
+            Colour userColour,
+            int userRank,
+            UserPermissions userPerms,
+            string channelName,
+            int maxMsgLength
+        ) {
+            UserId = userId;
+            UserName = userName;
+            UserColour = userColour;
+            UserRank = userRank;
+            UserPerms = userPerms;
+            ChannelName = channelName;
+            MaxMessageLength = maxMsgLength;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "1\ty\t{0}\t{1}\t{2}\t{3} {4} {5} {6} {7}\t{8}\t{9}",
+                UserId,
+                UserName,
+                UserColour,
+                UserRank,
+                UserPerms.HasFlag(UserPermissions.KickUser) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.ViewLogs) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.SetOwnNickname) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.CreateChannel) ? (
+                    UserPerms.HasFlag(UserPermissions.SetChannelPermanent) ? 2 : 1
+                ) : 0,
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MaxMessageLength
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/BanListResponseS2CPacket.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Text;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class BanListResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string[] Bans;
+
+        public BanListResponseS2CPacket(string[] bans) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            Bans = bans;
+        }
+
+        public string Pack() {
+            StringBuilder sb = new();
+
+            sb.AppendFormat("2\t{0}\t-1\t0\fbanlist\f", TimeStamp.ToUnixTimeSeconds());
+
+            foreach(string ban in Bans)
+                sb.AppendFormat(@"<a href=""javascript:void(0);"" onclick=""Chat.SendMessageWrapper('/unban '+ this.innerHTML);"">{0}</a>, ", ban);
+
+            if(Bans.Length > 0)
+                sb.Length -= 2;
+
+            sb.AppendFormat("\t{0}\t10010", MessageId);
+
+            return sb.ToString();
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelCreateResponseS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelCreateResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelCreateResponseS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fcrchan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelCreateS2CPacket.cs

@@ -0,0 +1,26 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelCreateS2CPacket : ISockChatS2CPacket {
+        private readonly string ChannelName;
+        private readonly bool ChannelHasPassword;
+        private readonly bool ChannelIsTemporary;
+
+        public ChannelCreateS2CPacket(
+            string channelName,
+            bool channelHasPassword,
+            bool channelIsTemporary
+        ) {
+            ChannelName = channelName;
+            ChannelHasPassword = channelHasPassword;
+            ChannelIsTemporary = channelIsTemporary;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "4\t0\t{0}\t{1}\t{2}",
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                ChannelHasPassword ? 1 : 0,
+                ChannelIsTemporary ? 1 : 0
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelDeleteNotAllowedErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelDeleteNotAllowedErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelDeleteNotAllowedErrorS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fndchan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelDeleteResponseS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelDeleteResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelDeleteResponseS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fdelchan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelDeleteS2CPacket.cs

@@ -0,0 +1,16 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelDeleteS2CPacket : ISockChatS2CPacket {
+        private readonly string ChannelName;
+
+        public ChannelDeleteS2CPacket(string channelName) {
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "4\t2\t{0}",
+                SockChatUtility.SanitiseChannelName(ChannelName)
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelNameFormatErrorS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelNameFormatErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public ChannelNameFormatErrorS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\finchan\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelNameInUseErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelNameInUseErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelNameInUseErrorS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fnischan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelNotFoundErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelNotFoundErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelNotFoundErrorS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fnochan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelPasswordChangedResponseS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelPasswordChangedResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public ChannelPasswordChangedResponseS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fcpwdchan\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelPasswordWrongErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelPasswordWrongErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelPasswordWrongErrorS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fipwchan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelRankChangedResponseS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelRankChangedResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public ChannelRankChangedResponseS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fcprivchan\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelRankTooHighErrorS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelRankTooHighErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public ChannelRankTooHighErrorS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\frankerr\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelRankTooLowErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelRankTooLowErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string ChannelName;
+
+        public ChannelRankTooLowErrorS2CPacket(string channelName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fipchan\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseChannelName(ChannelName),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelUpdateS2CPacket.cs

@@ -0,0 +1,30 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelUpdateS2CPacket : ISockChatS2CPacket {
+        private readonly string ChannelNamePrevious;
+        private readonly string ChannelNameNew;
+        private readonly bool ChannelHasPassword;
+        private readonly bool ChannelIsTemporary;
+
+        public ChannelUpdateS2CPacket(
+            string channelNamePrevious,
+            string channelNameNew,
+            bool channelHasPassword,
+            bool channelIsTemporary
+        ) {
+            ChannelNamePrevious = channelNamePrevious;
+            ChannelNameNew = channelNameNew;
+            ChannelHasPassword = channelHasPassword;
+            ChannelIsTemporary = channelIsTemporary;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "4\t1\t{0}\t{1}\t{2}\t{3}",
+                SockChatUtility.SanitiseChannelName(ChannelNamePrevious),
+                SockChatUtility.SanitiseChannelName(ChannelNameNew),
+                ChannelHasPassword ? 1 : 0,
+                ChannelIsTemporary ? 1 : 0
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ChannelsPopulateS2CPacket.cs

@@ -0,0 +1,29 @@
+using System.Text;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ChannelsPopulateS2CPacket : ISockChatS2CPacket {
+        public record ListEntry(string Name, bool HasPassword, bool IsTemporary);
+
+        private readonly ListEntry[] Entries;
+
+        public ChannelsPopulateS2CPacket(ListEntry[] entries) {
+            Entries = entries;
+        }
+
+        public string Pack() {
+            StringBuilder sb = new();
+
+            sb.AppendFormat("7\t2\t{0}", Entries.Length);
+
+            foreach(ListEntry entry in Entries)
+                sb.AppendFormat(
+                    "\t{0}\t{1}\t{2}",
+                    SockChatUtility.SanitiseChannelName(entry.Name),
+                    entry.HasPassword ? 1 : 0,
+                    entry.IsTemporary ? 1 : 0
+                );
+
+            return sb.ToString();
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ClearMessagesAndUsersS2CPacket.cs

@@ -0,0 +1,7 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ClearMessagesAndUsersS2CPacket : ISockChatS2CPacket {
+        public string Pack() {
+            return "8\t3";
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/CommandFormatErrorS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class CommandFormatErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public CommandFormatErrorS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fcmdna\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/CommandNotAllowedErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class CommandNotAllowedErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string CommandName;
+
+        public CommandNotAllowedErrorS2CPacket(string commandName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            CommandName = commandName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fcmdna\f/{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                CommandName,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/FloodWarningS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class FloodWarningS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public FloodWarningS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fflwarn\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ForceDisconnectS2CPacket.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class ForceDisconnectS2CPacket : ISockChatS2CPacket {
+        private readonly long Expires;
+
+        public ForceDisconnectS2CPacket(DateTimeOffset expires) {
+            Expires = expires <= DateTimeOffset.UtcNow
+                ? 0 : (expires.Year >= 2100 ? -1 : expires.ToUnixTimeSeconds());
+        }
+
+        public string Pack() {
+            if(Expires != 0)
+                return string.Format("9\t1\t{0}", Expires);
+
+            return "9\t0";
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/ISockChatS2CPacket.cs

@@ -0,0 +1,5 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public interface ISockChatS2CPacket {
+        string Pack();
+    }
+}

SharpChat.SockChat/PacketsS2C/KickBanNoRecordErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class KickBanNoRecordErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string TargetName;
+
+        public KickBanNoRecordErrorS2CPacket(string targetName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            TargetName = targetName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fnotban\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                TargetName,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/KickBanNotAllowedErrorS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class KickBanNotAllowedErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string UserName;
+
+        public KickBanNotAllowedErrorS2CPacket(string userName) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            UserName = userName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fkickna\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                UserName,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MOTDS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MOTDS2CPacket : ISockChatS2CPacket {
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string Body;
+
+        public MOTDS2CPacket(DateTimeOffset timeStamp, string body) {
+            TimeStamp = timeStamp;
+            Body = body;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "7\t1\t{0}\t-1\tChatBot\tinherit\t\t0\fsay\f{1}\twelcome\t0\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseMessageBody(Body)
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MessageAddLogS2CPacket.cs

@@ -0,0 +1,83 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MessageAddLogS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly long UserId;
+        private readonly string UserName;
+        private readonly Colour UserColour;
+        private readonly int UserRank;
+        private readonly UserPermissions UserPerms;
+        private readonly string Body;
+        private readonly bool IsAction;
+        private readonly bool IsPrivate;
+        private readonly bool IsBroadcast; // this should be MessageBroadcastLogPacket
+        private readonly bool Notify;
+
+        public MessageAddLogS2CPacket(
+            long messageId,
+            DateTimeOffset timeStamp,
+            long userId,
+            string userName,
+            Colour userColour,
+            int userRank,
+            UserPermissions userPerms,
+            string body,
+            bool isAction,
+            bool isPrivate,
+            bool isBroadcast,
+            bool notify
+        ) {
+            MessageId = messageId;
+            TimeStamp = timeStamp;
+            UserId = userId < 0 ? -1 : userId;
+            UserName = userName;
+            UserColour = userColour;
+            UserRank = userRank;
+            UserPerms = userPerms;
+            Body = body;
+            IsAction = isAction;
+            IsPrivate = isPrivate;
+            IsBroadcast = isBroadcast;
+            Notify = notify;
+        }
+
+        public string Pack() {
+            string body = SockChatUtility.SanitiseMessageBody(Body);
+            if(IsAction)
+                body = string.Format("<i>{0}</i>", body);
+
+            if(IsBroadcast)
+                body = "0\fsay\f" + body;
+
+            string userPerms = UserId < 0 ? string.Empty : string.Format(
+                "{0} {1} {2} {3} {4}",
+                UserRank,
+                UserPerms.HasFlag(UserPermissions.KickUser) == true ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.ViewLogs) == true ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.SetOwnNickname) == true ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.CreateChannel) == true ? (
+                    UserPerms.HasFlag(UserPermissions.SetChannelPermanent) == true ? 2 : 1
+                ) : 0
+            );
+
+            return string.Format(
+                "7\t1\t{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}\t{7}\t{8}{9}{10}{11}{12}",
+                TimeStamp.ToUnixTimeSeconds(),
+                UserId,
+                UserName,
+                UserColour,
+                userPerms,
+                body,
+                MessageId,
+                Notify ? 1 : 0,
+                1,
+                IsAction ? 1 : 0,
+                0,
+                IsAction ? 0 : 1,
+                IsPrivate ? 1 : 0
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MessageAddS2CPacket.cs

@@ -0,0 +1,47 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MessageAddS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly long UserId;
+        private readonly string Body;
+        private readonly bool IsAction;
+        private readonly bool IsPrivate;
+
+        public MessageAddS2CPacket(
+            long messageId,
+            DateTimeOffset timeStamp,
+            long userId,
+            string body,
+            bool isAction,
+            bool isPrivate
+        ) {
+            MessageId = messageId;
+            TimeStamp = timeStamp;
+            UserId = userId < 0 ? -1 : userId;
+            Body = body;
+            IsAction = isAction;
+            IsPrivate = isPrivate;
+        }
+
+        public string Pack() {
+            string body = SockChatUtility.SanitiseMessageBody(Body);
+            if(IsAction)
+                body = string.Format("<i>{0}</i>", body);
+
+            return string.Format(
+                "2\t{0}\t{1}\t{2}\t{3}\t{4}{5}{6}{7}{8}",
+                TimeStamp.ToUnixTimeSeconds(),
+                UserId,
+                body,
+                MessageId,
+                1,
+                IsAction ? 1 : 0,
+                0,
+                IsAction ? 0 : 1,
+                IsPrivate ? 1 : 0
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MessageBroadcastS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MessageBroadcastS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string Body;
+
+        public MessageBroadcastS2CPacket(long messageId, DateTimeOffset timeStamp, string body) {
+            MessageId = messageId;
+            TimeStamp = timeStamp;
+            Body = body;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\fsay\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                SockChatUtility.SanitiseMessageBody(Body),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MessageDeleteNotAllowedErrorS2CPacket.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MessageDeleteNotAllowedErrorS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+
+        public MessageDeleteNotAllowedErrorS2CPacket() {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t1\fdelerr\t{1}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/MessageDeleteS2CPacket.cs

@@ -0,0 +1,13 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class MessageDeleteS2CPacket : ISockChatS2CPacket {
+        private readonly string DeletedMessageId;
+
+        public MessageDeleteS2CPacket(string deletedMessageId) {
+            DeletedMessageId = deletedMessageId;
+        }
+
+        public string Pack() {
+            return string.Format("6\t{0}", DeletedMessageId);
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/PardonResponseS2CPacket.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class PardonResponseS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string Subject;
+
+        public PardonResponseS2CPacket(string subject) {
+            MessageId = SharpId.Next();
+            TimeStamp = DateTimeOffset.UtcNow;
+            Subject = subject;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "2\t{0}\t-1\t0\funban\f{1}\t{2}\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                Subject,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/PongS2CPacket.cs

@@ -0,0 +1,7 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class PongS2CPacket : ISockChatS2CPacket {
+        public string Pack() {
+            return "0\tpong";
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/UserChannelForceJoinS2CPacket.cs

@@ -0,0 +1,16 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class UserChannelForceJoinS2CPacket : ISockChatS2CPacket {
+        private readonly string ChannelName;
+
+        public UserChannelForceJoinS2CPacket(string channelName) {
+            ChannelName = channelName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "5\t2\t{0}",
+                SockChatUtility.SanitiseChannelName(ChannelName)
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/UserChannelJoinLogS2CPacket.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class UserChannelJoinLogS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string UserName;
+
+        public UserChannelJoinLogS2CPacket(
+            long messageId,
+            DateTimeOffset timeStamp,
+            string userName
+        ) {
+            MessageId = messageId;
+            TimeStamp = timeStamp;
+            UserName = userName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "7\t1\t{0}\t-1\tChatBot\tinherit\t\t0\fjchan\f{1}\t{2}\t0\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                UserName,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/UserChannelJoinS2CPacket.cs

@@ -0,0 +1,42 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class UserChannelJoinS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly long UserId;
+        private readonly string UserName;
+        private readonly Colour UserColour;
+        private readonly int UserRank;
+        private readonly UserPermissions UserPerms;
+
+        public UserChannelJoinS2CPacket(
+            long userId,
+            string userName,
+            Colour userColour,
+            int userRank,
+            UserPermissions userPerms
+        ) {
+            MessageId = SharpId.Next();
+            UserId = userId;
+            UserName = userName;
+            UserColour = userColour;
+            UserRank = userRank;
+            UserPerms = userPerms;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "5\t0\t{0}\t{1}\t{2}\t{3} {4} {5} {6} {7}\t{8}",
+                UserId,
+                UserName,
+                UserColour,
+                UserRank,
+                UserPerms.HasFlag(UserPermissions.KickUser) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.ViewLogs) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.SetOwnNickname) ? 1 : 0,
+                UserPerms.HasFlag(UserPermissions.CreateChannel) ? (
+                    UserPerms.HasFlag(UserPermissions.SetChannelPermanent) ? 2 : 1
+                ) : 0,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/UserChannelLeaveLogS2CPacket.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace SharpChat.SockChat.PacketsS2C {
+    public class UserChannelLeaveLogS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly DateTimeOffset TimeStamp;
+        private readonly string UserName;
+
+        public UserChannelLeaveLogS2CPacket(
+            long messageId,
+            DateTimeOffset timeStamp,
+            string userName
+        ) {
+            MessageId = messageId;
+            TimeStamp = timeStamp;
+            UserName = userName;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "7\t1\t{0}\t-1\tChatBot\tinherit\t\t0\flchan\f{1}\t{2}\t0\t10010",
+                TimeStamp.ToUnixTimeSeconds(),
+                UserName,
+                MessageId
+            );
+        }
+    }
+}

SharpChat.SockChat/PacketsS2C/UserChannelLeaveS2CPacket.cs

@@ -0,0 +1,19 @@
+namespace SharpChat.SockChat.PacketsS2C {
+    public class UserChannelLeaveS2CPacket : ISockChatS2CPacket {
+        private readonly long MessageId;
+        private readonly long UserId;
+
+        public UserChannelLeaveS2CPacket(long userId) {
+            MessageId = SharpId.Next();
+            UserId = userId;
+        }
+
+        public string Pack() {
+            return string.Format(
+                "5\t1\t{0}\t{1}",
+                UserId,
+                MessageId
+            );
+        }
+    }
+}