2 goircd -- minimalistic simple Internet Relay Chat (IRC) server
3 Copyright (C) 2014 Sergey Matveev <stargrave@stargrave.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
29 RE_ROOM = regexp.MustCompile("^#[^\x00\x07\x0a\x0d ,:/]{1,200}$")
32 // Sanitize room's name. It can consist of 1 to 50 ASCII symbols
33 // with some exclusions. All room names will have "#" prefix.
34 func RoomNameValid(name string) bool {
35 return RE_ROOM.MatchString(name)
43 members map[*Client]bool
45 log_sink chan<- LogEvent
46 state_sink chan<- StateEvent
49 func NewRoom(hostname, name string, log_sink chan<- LogEvent, state_sink chan<- StateEvent) *Room {
50 room := Room{name: name}
51 room.members = make(map[*Client]bool)
54 room.hostname = hostname
55 room.log_sink = log_sink
56 room.state_sink = state_sink
60 func (room *Room) SendTopic(client *Client) {
62 client.ReplyNicknamed("331", room.name, "No topic is set")
64 client.ReplyNicknamed("332", room.name, room.topic)
68 // Send message to all room's subscribers, possibly excluding someone
69 func (room *Room) Broadcast(msg string, client_to_ignore ...*Client) {
70 for member := range room.members {
71 if (len(client_to_ignore) > 0) && member == client_to_ignore[0] {
78 func (room *Room) StateSave() {
79 room.state_sink <- StateEvent{room.name, room.topic, room.key}
82 func (room *Room) Processor(events <-chan ClientEvent) {
84 for event := range events {
86 switch event.event_type {
88 room.members[client] = true
90 log.Println(client, "joined", room.name)
92 room.SendTopic(client)
93 room.Broadcast(fmt.Sprintf(":%s JOIN %s", client, room.name))
94 room.log_sink <- LogEvent{room.name, client.nickname, "joined", true}
95 nicknames := []string{}
96 for member := range room.members {
97 nicknames = append(nicknames, member.nickname)
99 sort.Strings(nicknames)
100 client.ReplyNicknamed("353", "=", room.name, strings.Join(nicknames, " "))
101 client.ReplyNicknamed("366", room.name, "End of NAMES list")
103 if _, subscribed := room.members[client]; !subscribed {
104 client.ReplyNicknamed("442", room.name, "You are not on that channel")
107 delete(room.members, client)
108 msg := fmt.Sprintf(":%s PART %s :%s", client, room.name, client.nickname)
110 room.log_sink <- LogEvent{room.name, client.nickname, "left", true}
112 if _, subscribed := room.members[client]; !subscribed {
113 client.ReplyParts("442", room.name, "You are not on that channel")
116 if event.text == "" {
117 go room.SendTopic(client)
120 room.topic = strings.TrimLeft(event.text, ":")
121 msg := fmt.Sprintf(":%s TOPIC %s :%s", client, room.name, room.topic)
122 go room.Broadcast(msg)
123 room.log_sink <- LogEvent{room.name, client.nickname, "set topic to " + room.topic, true}
126 for m := range room.members {
127 client.ReplyNicknamed("352", room.name, m.username, m.conn.RemoteAddr().String(), room.hostname, m.nickname, "H", "0 "+m.realname)
129 client.ReplyNicknamed("315", room.name, "End of /WHO list")
131 if event.text == "" {
136 client.Msg(fmt.Sprintf("324 %s %s %s", client.nickname, room.name, mode))
139 if strings.HasPrefix(event.text, "-k") || strings.HasPrefix(event.text, "+k") {
140 if _, subscribed := room.members[client]; !subscribed {
141 client.ReplyParts("442", room.name, "You are not on that channel")
145 client.ReplyNicknamed("472", event.text, "Unknown MODE flag")
150 if strings.HasPrefix(event.text, "+k") {
151 cols := strings.Split(event.text, " ")
153 client.ReplyNotEnoughParameters("MODE")
157 msg = fmt.Sprintf(":%s MODE %s +k %s", client, room.name, room.key)
158 msg_log = "set channel key to " + room.key
159 } else if strings.HasPrefix(event.text, "-k") {
161 msg = fmt.Sprintf(":%s MODE %s -k", client, room.name)
162 msg_log = "removed channel key"
164 go room.Broadcast(msg)
165 room.log_sink <- LogEvent{room.name, client.nickname, msg_log, true}
168 sep := strings.Index(event.text, " ")
169 room.Broadcast(fmt.Sprintf(":%s %s %s :%s", client, event.text[:sep], room.name, event.text[sep+1:]), client)
170 room.log_sink <- LogEvent{room.name, client.nickname, event.text[sep+1:], false}