sharp-chat/SharpChat.Protocol.IRC/ClientCommands/ModeCommand.cs

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2022-08-30 15:05:29 +00:00
using SharpChat.Channels;
using SharpChat.Protocol.IRC.Channels;
using SharpChat.Protocol.IRC.Replies;
using SharpChat.Protocol.IRC.Sessions;
using SharpChat.Sessions;
using SharpChat.Users;
using System;
using System.Collections.Generic;
using System.Linq;
namespace SharpChat.Protocol.IRC.ClientCommands {
public class ModeCommand : IClientCommand {
public const string NAME = @"MODE";
public string CommandName => NAME;
public bool RequireSession => true;
private ChannelManager Channels { get; }
private UserManager Users { get; }
private SessionManager Sessions { get; }
public ModeCommand(ChannelManager channels, UserManager users, SessionManager sessions) {
Channels = channels ?? throw new ArgumentNullException(nameof(channels));
Users = users ?? throw new ArgumentNullException(nameof(users));
Sessions = sessions ?? throw new ArgumentNullException(nameof(sessions));
}
public void HandleCommand(ClientCommandContext ctx) {
string targetName = ctx.Arguments.ElementAtOrDefault(0);
if(string.IsNullOrWhiteSpace(targetName)) {
ctx.Connection.SendReply(new NeedMoreParamsReply(NAME));
return;
}
if(!ctx.Arguments.Any()) {
ctx.Connection.SendReply(new NeedMoreParamsReply(NAME));
return;
}
if(targetName.StartsWith('#'))
Channels.GetChannelByIRCName(targetName, channel => {
if(channel == null) {
ctx.Connection.SendReply(new NoSuchChannelReply(targetName));
return;
}
if(ctx.Arguments.Count() == 1) {
//ctx.Connection.SendCommand(new ServerModeCommand(channel));
return;
}
// owner check
HandleChannel(ctx, channel);
});
else
Users.GetUser(targetName, user => {
if(user == null) {
ctx.Connection.SendReply(new NoSuchNickReply(targetName));
return;
}
if(ctx.Arguments.Count() == 1) {
//Sessions.CheckIRCSecure(user, isSecure => ctx.Connection.SendCommand(new ServerModeCommand(user, isSecure)));
return;
}
if(!user.Equals(ctx.User)) {
// admin check probably
ctx.Connection.SendReply(new UsersDoNotMatchReply());
return;
}
HandleUser(ctx, user);
});
}
private void HandleChannel(ClientCommandContext ctx, IChannel channel) {
Queue<string> args = new(ctx.Arguments);
while(args.TryDequeue(out string arg)) {
//
}
}
private void HandleUser(ClientCommandContext ctx, ILocalUser user) {
HashSet<char> processed = new();
string modeSet = ctx.Arguments.FirstOrDefault();
if(modeSet.Length < 2)
return;
Queue<char> chars = new(modeSet.ToArray());
char mode = chars.Dequeue();
if(mode is not '+' and not '-')
return;
bool set = mode == '+';
while(chars.TryDequeue(out mode)) {
if(processed.Contains(mode))
continue;
processed.Add(mode);
switch(mode) {
case 'i': // Invisible (appear offline)
Users.Update(user, status: set ? UserStatus.Offline : UserStatus.Online);
break;
default:
ctx.Connection.SendReply(new UserModeUnknownFlagReply());
chars.Clear();
return;
}
}
Sessions.CheckIRCSecure(user, isSecure => ctx.Connection.SendReply(new UserModeIsReply(user, isSecure)));
}
}
}