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91 lines
2.6 KiB
Go
91 lines
2.6 KiB
Go
// Copyright (c) 2012-2014 Jeremy Latt
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// Copyright (c) 2016-2017 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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"fmt"
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"strings"
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"github.com/goshuirc/irc-go/ircfmt"
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"github.com/goshuirc/irc-go/ircmsg"
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"github.com/oragono/oragono/irc/sno"
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)
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var (
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restrictedNicknames = map[string]bool{
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"=scene=": true, // used for rp commands
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"chanserv": true,
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"nickserv": true,
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}
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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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return performNickChange(server, client, client, msg.Params[0])
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}
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func performNickChange(server *Server, client *Client, target *Client, newnick string) bool {
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nickname := strings.TrimSpace(newnick)
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cfnick, err := CasefoldName(nickname)
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if len(nickname) < 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(nickname) > server.Limits().NickLen || restrictedNicknames[cfnick] {
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client.Send(nil, server.name, ERR_ERRONEUSNICKNAME, client.nick, nickname, "Erroneous nickname")
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return false
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}
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if target.Nick() == nickname {
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return false
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}
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hadNick := target.HasNick()
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origNick := target.Nick()
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origNickMask := target.NickMaskString()
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err = client.server.clients.SetNick(target, nickname)
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if err == ErrNicknameInUse {
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client.Send(nil, server.name, ERR_NICKNAMEINUSE, client.nick, nickname, "Nickname is already in use")
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return false
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} else if err != nil {
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client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, "NICK", fmt.Sprintf("Could not set or change nickname: %s", err.Error()))
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return false
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}
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client.server.logger.Debug("nick", fmt.Sprintf("%s changed nickname to %s [%s]", origNickMask, nickname, cfnick))
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if hadNick {
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target.server.snomasks.Send(sno.LocalNicks, fmt.Sprintf(ircfmt.Unescape("$%s$r changed nickname to %s"), origNick, nickname))
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target.server.whoWas.Append(client)
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for friend := range target.Friends() {
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friend.Send(nil, origNickMask, "NICK", nickname)
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}
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}
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if target.registered {
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client.server.monitorManager.AlertAbout(target, true)
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} else {
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server.tryRegister(target)
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}
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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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targetNick := strings.TrimSpace(msg.Params[0])
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target := server.clients.Get(targetNick)
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if target == nil {
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client.Send(nil, server.name, ERR_NOSUCHNICK, client.nick, msg.Params[0], "No such nick")
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return false
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}
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return performNickChange(server, client, target, msg.Params[1])
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}
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