-var (
- RENickname = regexp.MustCompile("^[a-zA-Z0-9-]{1,9}$")
-)
-
-type Daemon struct {
- Verbose 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
- lastAlivenessCheck time.Time
- logSink chan<- LogEvent
- stateSink chan<- StateEvent
-}
-
-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)
- daemon.logSink = logSink
- daemon.stateSink = stateSink
- return &daemon
-}
-
-func (daemon *Daemon) SendLusers(client *Client) {
- lusers := 0
- for client := range daemon.clients {
- if client.registered {
- lusers++
- }
- }
- client.ReplyNicknamed("251", fmt.Sprintf("There are %d users and 0 invisible on 1 servers", lusers))
-}
-
-func (daemon *Daemon) SendMotd(client *Client) {
- if daemon.motd == nil || *daemon.motd == "" {
- client.ReplyNicknamed("422", "MOTD File is missing")
- return
- }
-
- motd, err := ioutil.ReadFile(*daemon.motd)
- if err != nil {
- 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 -")
- for _, s := range strings.Split(strings.Trim(string(motd), "\n"), "\n") {
- client.ReplyNicknamed("372", "- "+string(s))
- }
- client.ReplyNicknamed("376", "End of /MOTD command")
-}
-
-func (daemon *Daemon) SendWhois(client *Client, nicknames []string) {
- for _, nickname := range nicknames {
- nickname = strings.ToLower(nickname)
- found := false
- for c := range daemon.clients {
- if strings.ToLower(c.nickname) != nickname {
- continue
- }
- found = true
- h := c.conn.RemoteAddr().String()
- h, _, err := net.SplitHostPort(h)
- if err != nil {
- log.Printf("Can't parse RemoteAddr %q: %v", h, err)
- h = "Unknown"
- }
- client.ReplyNicknamed("311", c.nickname, c.username, h, "*", c.realname)
- 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 {
- if subscriber.nickname == nickname {
- subscriptions = append(subscriptions, room.name)
- }
- }
- }
- sort.Strings(subscriptions)
- client.ReplyNicknamed("319", c.nickname, strings.Join(subscriptions, " "))
- client.ReplyNicknamed("318", c.nickname, "End of /WHOIS list")
- }
- if !found {
- client.ReplyNoNickChan(nickname)
- }
- }
-}
-
-func (daemon *Daemon) SendList(client *Client, cols []string) {
- var rooms []string
- if (len(cols) > 1) && (cols[1] != "") {
- rooms = strings.Split(strings.Split(cols[1], " ")[0], ",")
- } else {
- rooms = []string{}
- for room := range daemon.rooms {
- rooms = append(rooms, room)
- }
- }
- sort.Strings(rooms)
- for _, room := range rooms {
- r, found := daemon.rooms[room]
- if found {
- client.ReplyNicknamed("322", room, fmt.Sprintf("%d", len(r.members)), r.topic)
- }
- }
- client.ReplyNicknamed("323", "End of /LIST")
-}
-
-// Unregistered client workflow processor. Unregistered client:
-// * is not PINGed
-// * only QUIT, NICK and USER commands are processed
-// * other commands are quietly ignored
-// 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")
- return
- }
- }
- if !RENickname.MatchString(nickname) {
- client.ReplyParts("432", "*", cols[1], "Erroneous nickname")
- return
- }
- client.nickname = nickname
- case "USER":
- if len(cols) == 1 {
- client.ReplyNotEnoughParameters("USER")
- return
- }
- args := strings.SplitN(cols[1], " ", 4)
- if len(args) < 4 {
- client.ReplyNotEnoughParameters("USER")
- return
- }
- client.username = args[0]
- 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 "+daemon.version)
- client.ReplyNicknamed("003", "This server was created sometime")
- client.ReplyNicknamed("004", *daemon.hostname+" goircd o o")
- daemon.SendLusers(client)
- daemon.SendMotd(client)
- log.Println(client, "logged in")
- }
-}
-
-// Register new room in Daemon. Create an object, events sink, save pointers
-// to corresponding daemon's places and start room's processor goroutine.
-func (daemon *Daemon) RoomRegister(name string) (*Room, chan<- ClientEvent) {
- roomNew := NewRoom(daemon.hostname, name, daemon.logSink, daemon.stateSink)
- roomNew.Verbose = daemon.Verbose
- roomSink := make(chan ClientEvent)
- daemon.rooms[name] = roomNew
- daemon.roomSinks[roomNew] = roomSink
- go roomNew.Processor(roomSink)
- return roomNew, roomSink
-}
-
-func (daemon *Daemon) HandlerJoin(client *Client, cmd string) {
- args := strings.Split(cmd, " ")
- rooms := strings.Split(args[0], ",")
- var keys []string
- if len(args) > 1 {
- keys = strings.Split(args[1], ",")
- } else {
- keys = []string{}
- }
- for n, room := range rooms {
- if !RoomNameValid(room) {
- client.ReplyNoChannel(room)
- continue
- }
- var key string
- if (n < len(keys)) && (keys[n] != "") {
- key = keys[n]
- } else {
- key = ""
- }
- denied := false
- joined := false
- for roomExisting, roomSink := range daemon.roomSinks {
- if room == roomExisting.name {
- if (roomExisting.key != "") && (roomExisting.key != key) {
- denied = true
- } else {
- roomSink <- ClientEvent{client, EventNew, ""}
- joined = true
- }
- break
- }
- }
- if denied {
- client.ReplyNicknamed("475", room, "Cannot join channel (+k) - bad key")
- }
- if denied || joined {
- continue
- }
- roomNew, roomSink := daemon.RoomRegister(room)
- log.Println("Room", roomNew, "created")
- if key != "" {
- roomNew.key = key
- roomNew.StateSave()
- }
- roomSink <- ClientEvent{client, EventNew, ""}
- }
-}
-
-func (daemon *Daemon) Processor(events <-chan ClientEvent) {