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ergo/irc/nickname.go
2016-11-16 12:02:22 +10:00

97 lines
2.6 KiB
Go

// Copyright (c) 2012-2014 Jeremy Latt
// Copyright (c) 2016- Daniel Oaks <daniel@danieloaks.net>
// released under the MIT license
package irc
import (
"fmt"
"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 || nickname == "=scene=" {
client.Send(nil, server.name, ERR_ERRONEUSNICKNAME, client.nick, nicknameRaw, "Erroneous nickname")
return false
}
if client.nick == nickname {
return false
}
// bleh, this will be replaced and done below
if client.registered {
err = client.ChangeNickname(nicknameRaw)
} else {
err = client.SetNickname(nicknameRaw)
}
if err == ErrNicknameInUse {
client.Send(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nicknameRaw, "Nickname is already in use")
return false
} else if err != nil {
client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, "NICK", fmt.Sprintf("Could not set or change nickname: %s", err.Error()))
return false
}
if client.registered {
client.alertMonitors()
}
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])
nickname, err := CasefoldName(msg.Params[1])
if len(nickname) < 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 || nickname == "=scene=" {
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(nickname) != nil || server.clients.Get(nickname) != 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
}