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