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Add channel modes +k and +l

main
Trevor Slocum 2017-12-20 01:06:42 -08:00
parent e91d8a4dae
commit dc0cb8b3c8
3 changed files with 76 additions and 29 deletions
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10
channel.go
View File

@ -149,3 +149,13 @@ func (c *Channel) HasClient(client string) bool {
_, ok := c.clients.Load(client)
return ok
}
func (c *Channel) clientCount() int {
ccount := 0
c.clients.Range(func(k, v interface{}) bool {
ccount++
return true
})
return ccount
}

28
entity.go
View File

@ -13,7 +13,7 @@ const ENTITY_STATE_TERMINATING = 0
const ENTITY_STATE_NORMAL = 1
const CLIENT_MODES = "cD"
const CHANNEL_MODES = "cDimprstz"
const CHANNEL_MODES = "cDiklmprstz"
const CHANNEL_MODES_ARG = "kl"
type Entity struct {
@ -32,6 +32,14 @@ func (e *Entity) Initialize(etype int, identifier string) {
e.modes = new(sync.Map)
}
func (e *Entity) getMode(mode string) string {
if v, ok := e.modes.Load(mode); ok {
return v.(string)
}
return ""
}
func (e *Entity) getModes() map[string]string {
modes := make(map[string]string)
e.modes.Range(func(k, v interface{}) bool {
@ -62,9 +70,21 @@ func (e *Entity) addMode(mode string, value string) {
}
}
func (e *Entity) addModes(modes string) {
for _, mode := range strings.Split(modes, "") {
e.addMode(mode, "")
func (e *Entity) addModes(newmodes []string) {
if len(newmodes) == 0 {
return
}
p := 1
for _, mode := range strings.Split(newmodes[0], "") {
if strings.ContainsAny(mode, CHANNEL_MODES_ARG) {
if len(newmodes) > p {
e.addMode(mode, newmodes[p])
p++
}
} else {
e.addMode(mode, "")
}
}
}

67
server.go
View File

@ -320,7 +320,7 @@ func (s *Server) inChannel(channel string, client string) bool {
return false
}
func (s *Server) canAccessChannel(c *Client, channel string) (bool, string) {
func (s *Server) canJoin(c *Client, channel string, key string) (bool, string) {
dbch, err := db.Channel(channel)
if err != nil || dbch.Channel == "" {
return false, "invalid channel"
@ -356,6 +356,23 @@ func (s *Server) canAccessChannel(c *Client, channel string) (bool, string) {
}
}
if permission < PERMISSION_VIP {
if ch.hasMode("k") && ch.getMode("k") != key {
return false, "invalid channel key specified"
} else if ch.hasMode("l") {
var l int
var err error
l, err = strconv.Atoi(ch.getMode("l"))
if err != nil {
l = 0
}
if l > 0 && ch.clientCount() >= l {
return false, "limited channel, join again in a few moments"
}
}
}
if ch.hasMode("r") {
requiredPermission = PERMISSION_REGISTERED
reason = "only registered clients are allowed"
@ -368,7 +385,7 @@ func (s *Server) canAccessChannel(c *Client, channel string) (bool, string) {
return permission >= requiredPermission, reason
}
func (s *Server) joinChannel(channel string, client string) {
func (s *Server) joinChannel(client string, channel string, key string) {
if s.inChannel(channel, client) {
return // Already in channel
}
@ -382,14 +399,14 @@ func (s *Server) joinChannel(channel string, client string) {
if ch == nil {
ch = NewChannel(channel)
s.channels.Store(channel, ch)
} else if canaccess, reason := s.canAccessChannel(cl, channel); !canaccess {
} else if canaccess, reason := s.canJoin(cl, channel, key); !canaccess {
errmsg := fmt.Sprintf("Cannot join %s: %s", channel, reason)
cl.writeMessage(irc.ERR_INVITEONLYCHAN, []string{channel, errmsg})
cl.sendNotice(errmsg)
return
}
ch.clients.Store(client, s.clientsInChannel(channel, client)+1)
ch.clients.Store(client, s.anonCount(channel, client)+1)
cl.write(cl.getPrefix(), irc.JOIN, []string{channel})
ch.Log(cl, irc.JOIN, "")
@ -453,7 +470,7 @@ func (s *Server) enforceModes(channel string) {
}
}
func (s *Server) clientsInChannel(channel string, client string) int {
func (s *Server) anonCount(channel string, client string) int {
ch := s.getChannel(channel)
cl := s.getClient(client)
@ -461,12 +478,7 @@ func (s *Server) clientsInChannel(channel string, client string) int {
return 0
}
ccount := 0
ch.clients.Range(func(k, v interface{}) bool {
ccount++
return true
})
ccount := ch.clientCount()
if (ch.hasMode("c") || cl.hasMode("c")) && ccount >= 2 {
return 2
}
@ -493,7 +505,7 @@ func (s *Server) updateClientCount(channel string, client string, reason string)
}
reasonShown = false
chancount := s.clientsInChannel(channel, cl.identifier)
chancount := s.anonCount(channel, cl.identifier)
if ccount < chancount {
for i := ccount; i < chancount; i++ {
@ -539,7 +551,7 @@ func (s *Server) sendNames(channel string, clientname string) {
names = append(names, cl.nick)
}
ccount := s.clientsInChannel(channel, clientname)
ccount := s.anonCount(channel, clientname)
for i := 1; i < ccount; i++ {
if cl.capHostInNames {
names = append(names, s.getAnonymousPrefix(i).String())
@ -631,7 +643,7 @@ func (s *Server) handleChannelMode(c *Client, params []string) {
}
if params[1][0] == '+' {
ch.addModes(params[1][1:])
ch.addModes(params[1:])
} else {
ch.removeModes(params[1][1:])
}
@ -684,7 +696,7 @@ func (s *Server) handleUserMode(c *Client, params []string) {
if len(params) > 1 && len(params[1]) > 0 && (params[1][0] == '+' || params[1][0] == '-') {
if params[1][0] == '+' {
c.addModes(params[1][1:])
c.addModes(params[1:])
} else {
c.removeModes(params[1][1:])
}
@ -890,9 +902,11 @@ func (s *Server) handleUserCommand(client string, command string, params []strin
return
case COMMAND_INFO:
if len(params) > 0 && len(params[0]) > 0 {
if canaccess, reason := s.canAccessChannel(cl, params[0]); !canaccess {
cl.sendError("Failed to fetch channel INFO, " + reason)
return
if !s.inChannel(params[0], client) {
if canaccess, reason := s.canJoin(cl, params[0], ""); !canaccess {
cl.sendError("Failed to fetch channel INFO, " + reason)
return
}
}
dbch, err := db.Channel(params[0])
@ -935,9 +949,8 @@ func (s *Server) handleUserCommand(client string, command string, params []strin
authSuccess := cl.identify(username, password)
if authSuccess {
cl.sendNotice("Identified successfully")
if cl.globalPermission() >= PERMISSION_VIP {
s.joinChannel(CHANNEL_SERVER, cl.identifier)
s.joinChannel(cl.identifier, CHANNEL_SERVER, "")
}
for clch := range s.getChannels(cl.identifier) {
@ -1225,9 +1238,9 @@ func (s *Server) handleRead(c *Client) {
c.writeMessage(motdcode, []string{" " + motdmsg})
}
s.joinChannel(CHANNEL_LOBBY, c.identifier)
s.joinChannel(c.identifier, CHANNEL_LOBBY, "")
if c.globalPermission() >= PERMISSION_VIP {
s.joinChannel(CHANNEL_SERVER, c.identifier)
s.joinChannel(c.identifier, CHANNEL_SERVER, "")
}
} else if msg.Command == irc.PASS && c.user == "" && len(msg.Params) > 0 && len(msg.Params[0]) > 0 {
// TODO: Add auth and multiple failed attempts ban
@ -1303,7 +1316,7 @@ func (s *Server) handleRead(c *Client) {
return true
}
chans[key] = s.clientsInChannel(key, c.identifier)
chans[key] = s.anonCount(key, c.identifier)
return true
})
@ -1315,8 +1328,12 @@ func (s *Server) handleRead(c *Client) {
}
c.writeMessage(irc.RPL_LISTEND, []string{"End of /LIST"})
} else if msg.Command == irc.JOIN && len(msg.Params) > 0 && len(msg.Params[0]) > 0 {
key := ""
if len(msg.Params) > 1 {
key = msg.Params[1]
}
for _, channel := range strings.Split(msg.Params[0], ",") {
s.joinChannel(channel, c.identifier)
s.joinChannel(c.identifier, channel, key)
}
} else if msg.Command == irc.NAMES && len(msg.Params) > 0 && len(msg.Params[0]) > 0 {
for _, channel := range strings.Split(msg.Params[0], ",") {
@ -1326,7 +1343,7 @@ func (s *Server) handleRead(c *Client) {
var ccount int
for _, channel := range strings.Split(msg.Params[0], ",") {
if s.inChannel(channel, c.identifier) {
ccount = s.clientsInChannel(channel, c.identifier)
ccount = s.anonCount(channel, c.identifier)
for i := 0; i < ccount; i++ {
var prfx *irc.Prefix
if i == 0 {