62 lines
2.2 KiB
C#
62 lines
2.2 KiB
C#
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using SharpChat.Protocol.IRC.Replies;
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using SharpChat.Users;
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using System;
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using System.Linq;
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namespace SharpChat.Protocol.IRC.ClientCommands {
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public class NickCommand : IClientCommand {
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public const string NAME = @"NICK";
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public string CommandName => NAME;
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public bool RequireSession => false;
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private UserManager Users { get; }
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public NickCommand(UserManager users) {
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Users = users ?? throw new ArgumentNullException(nameof(users));
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}
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public void HandleCommand(ClientCommandContext ctx) {
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if(ctx.User == null) // blocking calls to this without an error
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return;
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// TODO: check if user is allowed to set a nick
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// should prefixes be a thing for IRC?
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// should the prefix be nuked in favour of a forced name change?
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string nickName = ctx.Arguments.FirstOrDefault();
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if(string.IsNullOrWhiteSpace(nickName)) {
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ctx.Connection.SendReply(new NoNickNameGivenReply());
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return;
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}
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nickName = nickName.Trim();
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if(nickName.Equals(ctx.User.UserName, StringComparison.InvariantCulture)) // allowing capitalisation changes
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nickName = null;
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else if(nickName.Length > 15) // should be configurable somewhere, also magic number in Sock Chat's impl
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nickName = nickName.Substring(0, 15); // also Flashii's max username length is 16, guessing it was 15 to account for the ~?
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else if(string.IsNullOrEmpty(nickName))
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nickName = null;
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if(nickName == null) {
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Users.Update(ctx.User, nickName: string.Empty);
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return;
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}
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// TODO: global name validation routines
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//ctx.Connection.SendReply(new ErroneousNickNameReply(nickName));
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Users.GetUser(nickName, user => {
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if(user != null) {
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ctx.Connection.SendReply(new NickNameInUseReply(nickName));
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return;
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}
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Users.Update(ctx.User, nickName: nickName);
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});
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}
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}
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}
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