54 lines
2 KiB
C#
54 lines
2 KiB
C#
using SharpChat.Packet;
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using System.Linq;
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namespace SharpChat.Commands {
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public class UserNickCommand : IChatCommand {
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public bool IsMatch(ChatCommandContext ctx) {
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return ctx.NameEquals("nick");
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}
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public void Dispatch(ChatCommandContext ctx) {
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bool setOthersNick = ctx.User.Can(ChatUserPermissions.SetOthersNickname);
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if(!setOthersNick && !ctx.User.Can(ChatUserPermissions.SetOwnNickname)) {
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ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorPacket(ctx.Name));
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return;
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}
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ChatUser? targetUser = null;
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int offset = 0;
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if(setOthersNick && long.TryParse(ctx.Args.FirstOrDefault(), out long targetUserId) && targetUserId > 0) {
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targetUser = ctx.Chat.Users.FirstOrDefault(u => u.UserId == targetUserId);
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++offset;
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}
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targetUser ??= ctx.User;
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if(ctx.Args.Length < offset) {
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ctx.Chat.SendTo(ctx.User, new CommandFormatErrorPacket());
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return;
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}
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string nickStr = string.Join('_', ctx.Args.Skip(offset))
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.Replace("\n", string.Empty).Replace("\r", string.Empty)
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.Replace("\f", string.Empty).Replace("\t", string.Empty)
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.Replace(' ', '_').Trim();
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if(nickStr == targetUser.UserName)
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nickStr = string.Empty;
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else if(nickStr.Length > 15)
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nickStr = nickStr[..15];
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else if(string.IsNullOrEmpty(nickStr))
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nickStr = string.Empty;
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if(!string.IsNullOrWhiteSpace(nickStr) && ctx.Chat.Users.Any(u => u.NameEquals(nickStr))) {
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ctx.Chat.SendTo(ctx.User, new UserNameInUseErrorPacket(nickStr));
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return;
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}
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string? previousName = targetUser == ctx.User ? (targetUser.NickName ?? targetUser.UserName) : null;
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ctx.Chat.UpdateUser(targetUser, nickName: nickStr, silent: previousName == null);
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}
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}
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}
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