93 lines
2.5 KiB
Go
93 lines
2.5 KiB
Go
// Copyright (c) 2012-2014 Jeremy Latt
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// Copyright (c) 2016- Daniel Oaks <daniel@danieloaks.net>
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// released under the MIT license
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package irc
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import (
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"strings"
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"github.com/DanielOaks/girc-go/ircmsg"
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)
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// NICK <nickname>
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func nickHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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if !client.authorized {
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client.Quit("Bad password")
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return true
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}
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nicknameRaw := strings.TrimSpace(msg.Params[0])
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nickname, err := CasefoldName(nicknameRaw)
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if len(nicknameRaw) < 1 {
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client.Send(nil, server.name, ERR_NONICKNAMEGIVEN, client.nick, "No nickname given")
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return false
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}
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if err != nil || len(nicknameRaw) > server.limits.NickLen {
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client.Send(nil, server.name, ERR_ERRONEUSNICKNAME, client.nick, nicknameRaw, "Erroneous nickname")
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return false
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}
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if client.nick == nickname {
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return false
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}
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//TODO(dan): There's probably some races here, we should be changing this in the primary server thread
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target := server.clients.Get(nickname)
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if target != nil && target != client {
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client.Send(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nicknameRaw, "Nickname is already in use")
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return false
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}
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if client.registered {
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client.ChangeNickname(nicknameRaw)
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client.alertMonitors()
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} else {
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client.SetNickname(nicknameRaw)
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}
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server.tryRegister(client)
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return false
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}
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// SANICK <oldnick> <nickname>
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func sanickHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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if !client.authorized {
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client.Quit("Bad password")
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return true
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}
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oldnick, oerr := CasefoldName(msg.Params[0])
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casefoldedNickname, err := CasefoldName(msg.Params[1])
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if len(casefoldedNickname) < 1 {
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client.Send(nil, server.name, ERR_NONICKNAMEGIVEN, client.nick, "No nickname given")
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return false
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}
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if oerr != nil || err != nil || len(strings.TrimSpace(msg.Params[1])) > server.limits.NickLen {
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client.Send(nil, server.name, ERR_ERRONEUSNICKNAME, client.nick, msg.Params[0], "Erroneous nickname")
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return false
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}
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if client.nick == msg.Params[1] {
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return false
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}
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target := server.clients.Get(oldnick)
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if target == nil {
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client.Send(nil, server.name, ERR_NOSUCHNICK, msg.Params[0], "No such nick")
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return false
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}
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//TODO(dan): There's probably some races here, we should be changing this in the primary server thread
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if server.clients.Get(casefoldedNickname) != nil || server.clients.Get(casefoldedNickname) != target {
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client.Send(nil, server.name, ERR_NICKNAMEINUSE, client.nick, msg.Params[0], "Nickname is already in use")
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return false
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}
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target.ChangeNickname(msg.Params[1])
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return false
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}
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