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105 lines
2.8 KiB
Go
105 lines
2.8 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/ircmsg"
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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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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.getLimits().NickLen || restrictedNicknames[nickname] {
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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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// bleh, this will be replaced and done below
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if client.registered {
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err = client.ChangeNickname(nicknameRaw)
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} else {
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err = client.SetNickname(nicknameRaw)
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}
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if err == ErrNicknameInUse {
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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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} 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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if client.registered {
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client.server.monitorManager.AlertAbout(client, true)
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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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nickname, err := CasefoldName(msg.Params[1])
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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 oerr != nil || err != nil || len(strings.TrimSpace(msg.Params[1])) > server.limits.NickLen || restrictedNicknames[nickname] {
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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, client.nick, 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(nickname) != nil && server.clients.Get(nickname) != 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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