/*
goircd -- minimalistic simple Internet Relay Chat (IRC) server
-Copyright (C) 2014 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2014-2015 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+
package main
import (
)
const (
- PingTimeout = time.Second * 180 // Max time deadline for client's unresponsiveness
- PingThreshold = time.Second * 90 // Max idle client's time before PING are sent
- AlivenessCheck = time.Second * 10 // Client's aliveness check period
+ // Max time deadline for client's unresponsiveness
+ PingTimeout = time.Second * 180
+ // Max idle client's time before PING are sent
+ PingThreshold = time.Second * 90
+ // Client's aliveness check period
+ AlivenessCheck = time.Second * 10
)
var (
- RENickname = regexp.MustCompile("^[a-zA-Z0-9-]{1,9}$")
+ RENickname = regexp.MustCompile("^[a-zA-Z0-9-]{1,24}$")
)
type Daemon struct {
Verbose bool
- hostname string
- motd string
- clients map[*Client]bool
+ version string
+ hostname *string
+ motd *string
+ passwords *string
+ clients map[*Client]struct{}
clientAliveness map[*Client]*ClientAlivenessState
rooms map[string]*Room
roomSinks map[*Room]chan ClientEvent
stateSink chan<- StateEvent
}
-func NewDaemon(hostname, motd string, logSink chan<- LogEvent, stateSink chan<- StateEvent) *Daemon {
- daemon := Daemon{hostname: hostname, motd: motd}
- daemon.clients = make(map[*Client]bool)
+func NewDaemon(version string, hostname, motd, passwords *string, logSink chan<- LogEvent, stateSink chan<- StateEvent) *Daemon {
+ daemon := Daemon{
+ version: version,
+ hostname: hostname,
+ motd: motd,
+ passwords: passwords,
+ }
+ daemon.clients = make(map[*Client]struct{})
daemon.clientAliveness = make(map[*Client]*ClientAlivenessState)
daemon.rooms = make(map[string]*Room)
daemon.roomSinks = make(map[*Room]chan ClientEvent)
}
func (daemon *Daemon) SendMotd(client *Client) {
- if len(daemon.motd) == 0 {
+ if daemon.motd == nil || *daemon.motd == "" {
client.ReplyNicknamed("422", "MOTD File is missing")
return
}
- motd, err := ioutil.ReadFile(daemon.motd)
+ motd, err := ioutil.ReadFile(*daemon.motd)
if err != nil {
- log.Printf("Can not read motd file %s: %v", daemon.motd, err)
+ log.Printf("Can not read motd file %s: %v", *daemon.motd, err)
client.ReplyNicknamed("422", "Error reading MOTD File")
return
}
- client.ReplyNicknamed("375", "- "+daemon.hostname+" Message of the day -")
+ client.ReplyNicknamed("375", "- "+*daemon.hostname+" Message of the day -")
for _, s := range strings.Split(strings.Trim(string(motd), "\n"), "\n") {
client.ReplyNicknamed("372", "- "+string(s))
}
h = "Unknown"
}
client.ReplyNicknamed("311", c.nickname, c.username, h, "*", c.realname)
- client.ReplyNicknamed("312", c.nickname, daemon.hostname, daemon.hostname)
+ client.ReplyNicknamed("312", c.nickname, *daemon.hostname, *daemon.hostname)
+ if c.away != nil {
+ client.ReplyNicknamed("301", c.nickname, *c.away)
+ }
subscriptions := []string{}
for _, room := range daemon.rooms {
for subscriber := range room.members {
// When client finishes NICK/USER workflow, then MOTD and LUSERS are send to him.
func (daemon *Daemon) ClientRegister(client *Client, command string, cols []string) {
switch command {
+ case "PASS":
+ if len(cols) == 1 || len(cols[1]) < 1 {
+ client.ReplyNotEnoughParameters("PASS")
+ return
+ }
+ client.password = cols[1]
case "NICK":
if len(cols) == 1 || len(cols[1]) < 1 {
client.ReplyParts("431", "No nickname given")
return
}
nickname := cols[1]
+ // Compatibility with some clients prepending colons to nickname
+ nickname = strings.TrimPrefix(nickname, ":")
for existingClient := range daemon.clients {
if existingClient.nickname == nickname {
client.ReplyParts("433", "*", nickname, "Nickname is already in use")
client.realname = strings.TrimLeft(args[3], ":")
}
if client.nickname != "*" && client.username != "" {
+ if daemon.passwords != nil && *daemon.passwords != "" {
+ if client.password == "" {
+ client.ReplyParts("462", "You may not register")
+ client.conn.Close()
+ return
+ }
+ contents, err := ioutil.ReadFile(*daemon.passwords)
+ if err != nil {
+ log.Fatalf("Can no read passwords file %s: %s", *daemon.passwords, err)
+ return
+ }
+ for _, entry := range strings.Split(string(contents), "\n") {
+ if entry == "" {
+ continue
+ }
+ if lp := strings.Split(entry, ":"); lp[0] == client.nickname && lp[1] != client.password {
+ client.ReplyParts("462", "You may not register")
+ client.conn.Close()
+ return
+ }
+ }
+ }
+
client.registered = true
client.ReplyNicknamed("001", "Hi, welcome to IRC")
- client.ReplyNicknamed("002", "Your host is "+daemon.hostname+", running goircd")
+ client.ReplyNicknamed("002", "Your host is "+*daemon.hostname+", running goircd "+daemon.version)
client.ReplyNicknamed("003", "This server was created sometime")
- client.ReplyNicknamed("004", daemon.hostname+" goircd o o")
+ client.ReplyNicknamed("004", *daemon.hostname+" goircd o o")
daemon.SendLusers(client)
daemon.SendMotd(client)
+ log.Println(client, "logged in")
}
}
continue
}
roomNew, roomSink := daemon.RoomRegister(room)
+ log.Println("Room", roomNew, "created")
if key != "" {
roomNew.key = key
roomNew.StateSave()
}
func (daemon *Daemon) Processor(events <-chan ClientEvent) {
+ var now time.Time
for event := range events {
- now := time.Now()
+ now = time.Now()
client := event.client
// Check for clients aliveness
}
if !aliveness.pingSent && aliveness.timestamp.Add(PingThreshold).Before(now) {
if c.registered {
- c.Msg("PING :" + daemon.hostname)
+ c.Msg("PING :" + *daemon.hostname)
aliveness.pingSent = true
} else {
log.Println(c, "ping timeout")
switch event.eventType {
case EventNew:
- daemon.clients[client] = true
- daemon.clientAliveness[client] = &ClientAlivenessState{pingSent: false, timestamp: now}
+ daemon.clients[client] = struct{}{}
+ daemon.clientAliveness[client] = &ClientAlivenessState{
+ pingSent: false,
+ timestamp: now,
+ }
case EventDel:
delete(daemon.clients, client)
delete(daemon.clientAliveness, client)
log.Println(client, "command", command)
}
if command == "QUIT" {
+ log.Println(client, "quit")
delete(daemon.clients, client)
delete(daemon.clientAliveness, client)
client.conn.Close()
}
switch command {
case "AWAY":
- continue
+ if len(cols) == 1 {
+ client.away = nil
+ client.ReplyNicknamed("305", "You are no longer marked as being away")
+ continue
+ }
+ msg := strings.TrimLeft(cols[1], ":")
+ client.away = &msg
+ client.ReplyNicknamed("306", "You have been marked as being away")
case "JOIN":
if len(cols) == 1 || len(cols[1]) < 1 {
client.ReplyNotEnoughParameters("JOIN")
case "LIST":
daemon.SendList(client, cols)
case "LUSERS":
- go daemon.SendLusers(client)
+ daemon.SendLusers(client)
case "MODE":
if len(cols) == 1 || len(cols[1]) < 1 {
client.ReplyNotEnoughParameters("MODE")
client.ReplyNotEnoughParameters("PART")
continue
}
- for _, room := range strings.Split(cols[1], ",") {
+ rooms := strings.Split(cols[1], " ")[0]
+ for _, room := range strings.Split(rooms, ",") {
r, found := daemon.rooms[room]
if !found {
client.ReplyNoChannel(room)
client.ReplyNicknamed("409", "No origin specified")
continue
}
- client.Reply(fmt.Sprintf("PONG %s :%s", daemon.hostname, cols[1]))
+ client.Reply(fmt.Sprintf("PONG %s :%s", *daemon.hostname, cols[1]))
case "PONG":
continue
case "NOTICE", "PRIVMSG":
if c.nickname == target {
msg = fmt.Sprintf(":%s %s %s %s", client, command, c.nickname, cols[1])
c.Msg(msg)
+ if c.away != nil {
+ client.ReplyNicknamed("301", c.nickname, *c.away)
+ }
break
}
}
r, found := daemon.rooms[target]
if !found {
client.ReplyNoNickChan(target)
+ continue
+ }
+ daemon.roomSinks[r] <- ClientEvent{
+ client,
+ EventMsg,
+ command + " " + strings.TrimLeft(cols[1], ":"),
}
- daemon.roomSinks[r] <- ClientEvent{client, EventMsg, command + " " + strings.TrimLeft(cols[1], ":")}
case "TOPIC":
if len(cols) == 1 {
client.ReplyNotEnoughParameters("TOPIC")
}
cols := strings.Split(cols[1], " ")
nicknames := strings.Split(cols[len(cols)-1], ",")
- go daemon.SendWhois(client, nicknames)
+ daemon.SendWhois(client, nicknames)
+ case "VERSION":
+ var debug string
+ if daemon.Verbose {
+ debug = "debug"
+ } else {
+ debug = ""
+ }
+ client.ReplyNicknamed("351", fmt.Sprintf("%s.%s %s :", daemon.version, debug, *daemon.hostname))
default:
client.ReplyNicknamed("421", command, "Unknown command")
}