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)
42 members map[*Client]bool
44 log_sink chan<- LogEvent
45 state_sink chan<- StateEvent
48 func NewRoom(hostname, name string, log_sink chan<- LogEvent, state_sink chan<- StateEvent) *Room {
49 room := Room{name: name}
50 room.members = make(map[*Client]bool)
53 room.hostname = hostname
54 room.log_sink = log_sink
55 room.state_sink = state_sink
59 func (room *Room) SendTopic(client *Client) {
61 client.ReplyNicknamed("331", room.name, "No topic is set")
63 client.ReplyNicknamed("332", room.name, room.topic)
67 // Send message to all room's subscribers, possibly excluding someone
68 func (room *Room) Broadcast(msg string, client_to_ignore ...*Client) {
69 for member := range room.members {
70 if (len(client_to_ignore) > 0) && member == client_to_ignore[0] {
77 func (room *Room) StateSave() {
78 room.state_sink <- StateEvent{room.name, room.topic, room.key}
81 func (room *Room) Processor(events <-chan ClientEvent) {
83 for event := range events {
85 switch event.event_type {
87 room.members[client] = true
88 log.Println(client, "joined", room.name)
89 room.SendTopic(client)
90 room.Broadcast(fmt.Sprintf(":%s JOIN %s", client, room.name))
91 room.log_sink <- LogEvent{room.name, client.nickname, "joined", true}
92 nicknames := []string{}
93 for member := range room.members {
94 nicknames = append(nicknames, member.nickname)
96 sort.Strings(nicknames)
97 client.ReplyNicknamed("353", "=", room.name, strings.Join(nicknames, " "))
98 client.ReplyNicknamed("366", room.name, "End of NAMES list")
100 if _, subscribed := room.members[client]; !subscribed {
101 client.ReplyNicknamed("442", room.name, "You are not on that channel")
104 delete(room.members, client)
105 msg := fmt.Sprintf(":%s PART %s :%s", client, room.name, client.nickname)
106 go room.Broadcast(msg)
107 room.log_sink <- LogEvent{room.name, client.nickname, "left", true}
109 if _, subscribed := room.members[client]; !subscribed {
110 client.ReplyParts("442", room.name, "You are not on that channel")
113 if event.text == "" {
114 go room.SendTopic(client)
117 room.topic = strings.TrimLeft(event.text, ":")
118 msg := fmt.Sprintf(":%s TOPIC %s :%s", client, room.name, room.topic)
119 go room.Broadcast(msg)
120 room.log_sink <- LogEvent{room.name, client.nickname, "set topic to " + room.topic, true}
123 for m := range room.members {
124 client.ReplyNicknamed("352", room.name, m.username, m.conn.RemoteAddr().String(), room.hostname, m.nickname, "H", "0 "+m.realname)
126 client.ReplyNicknamed("315", room.name, "End of /WHO list")
128 if event.text == "" {
133 client.Msg(fmt.Sprintf("324 %s %s %s", client.nickname, room.name, mode))
136 if strings.HasPrefix(event.text, "-k") || strings.HasPrefix(event.text, "+k") {
137 if _, subscribed := room.members[client]; !subscribed {
138 client.ReplyParts("442", room.name, "You are not on that channel")
142 client.ReplyNicknamed("472", event.text, "Unknown MODE flag")
147 if strings.HasPrefix(event.text, "+k") {
148 cols := strings.Split(event.text, " ")
150 client.ReplyNotEnoughParameters("MODE")
154 msg = fmt.Sprintf(":%s MODE %s +k %s", client, room.name, room.key)
155 msg_log = "set channel key to " + room.key
156 } else if strings.HasPrefix(event.text, "-k") {
158 msg = fmt.Sprintf(":%s MODE %s -k", client, room.name)
159 msg_log = "removed channel key"
161 go room.Broadcast(msg)
162 room.log_sink <- LogEvent{room.name, client.nickname, msg_log, true}
165 sep := strings.Index(event.text, " ")
166 room.Broadcast(fmt.Sprintf(":%s %s %s :%s", client, event.text[:sep], room.name, event.text[sep+1:]), client)
167 room.log_sink <- LogEvent{room.name, client.nickname, event.text[sep+1:], false}