Merge pull request #25 from edmund-huber/theater_mode

WIP: adding theater-mode, fixes #15

ergonomadic.conf

@@ -9,3 +9,6 @@ password = "JDJhJDA0JHJzVFFlNXdOUXNhLmtkSGRUQVVEVHVYWXRKUmdNQ3FKVTRrczRSMTlSWGRP
 
 [operator "root"]
 password = "JDJhJDA0JEhkcm10UlNFRkRXb25iOHZuSDVLZXVBWlpyY0xyNkQ4dlBVc1VMWVk1LlFjWFpQbGxZNUtl" ; 'toor'
+
+[theater "#ghostbusters"]
+password = "JDJhJDA0JG0yY1h4cTRFUHhkcjIzN2p1M2Nvb2VEYjAzSHh4eTB3YkZ0VFRLV1ZPVXdqeFBSRUtmRlBT" ; 'venkman'

irc/channel.go

@@ -14,6 +14,7 @@ type Channel struct {
 	server      *Server
 	topic       Text
 	userLimit   uint64
+	theaterUser *Client
 }
 
 // NewChannel creates a new channel from a `Server` and a `name`
@@ -405,9 +406,11 @@ func (channel *Channel) applyMode(client *Client, change *ChannelModeChange) boo
 		return channel.applyModeMember(client, change.mode, change.op,
 			NewName(change.arg))
 
+	case Theater:
+		client.ErrConfiguredMode(change.mode)
+
 	default:
 		client.ErrUnknownMode(change.mode, channel)
-		return false
 	}
 	return false
 }

irc/client.go

@@ -34,6 +34,7 @@ type Client struct {
 	server          *Server
 	socket          *Socket
 	username        Name
+	theaterChannels []*Channel
 }
 
 func NewClient(server *Server, conn net.Conn) *Client {
@@ -259,6 +260,10 @@ func (client *Client) Quit(message Text) {
 		return
 	}
 
+	for _, channel := range client.theaterChannels {
+		delete(channel.flags, Theater)
+	}
+
 	client.Reply(RplError("connection closed"))
 	client.hasQuit = true
 	client.server.whoWas.Append(client)

irc/commands.go

@@ -49,6 +49,7 @@ var (
 		PRIVMSG: NewPrivMsgCommand,
 		PROXY:   NewProxyCommand,
 		QUIT:    NewQuitCommand,
+		THEATER: NewTheaterCommand, // nonstandard
 		TIME:    NewTimeCommand,
 		TOPIC:   NewTopicCommand,
 		USER:    NewUserCommand,
@@ -947,6 +948,31 @@ func NewInviteCommand(args []string) (Command, error) {
 	}, nil
 }
 
+func NewTheaterCommand(args []string) (Command, error) {
+	if len(args) < 1 {
+		return nil, NotEnoughArgsError
+	} else if upperSubCmd := strings.ToUpper(args[0]); upperSubCmd == "IDENTIFY" && len(args) == 3 {
+		return &TheaterIdentifyCommand{
+			channel:     NewName(args[1]),
+			PassCommand: PassCommand{password: []byte(args[2])},
+		}, nil
+	} else if upperSubCmd == "PRIVMSG" && len(args) == 4 {
+		return &TheaterPrivMsgCommand{
+			channel: NewName(args[1]),
+			asNick:  NewName(args[2]),
+			message: NewText(args[3]),
+		}, nil
+	} else if upperSubCmd == "ACTION" && len(args) == 4 {
+		return &TheaterActionCommand{
+			channel: NewName(args[1]),
+			asNick:  NewName(args[2]),
+			action:  NewText(args[3]),
+		}, nil
+	} else {
+		return nil, ErrParseCommand
+	}
+}
+
 type TimeCommand struct {
 	BaseCommand
 	target Name

irc/config.go

@@ -29,6 +29,8 @@ type Config struct {
 	}
 
 	Operator map[string]*PassConfig
+
+	Theater map[string]*PassConfig
 }
 
 func (conf *Config) Operators() map[Name][]byte {
@@ -39,6 +41,18 @@ func (conf *Config) Operators() map[Name][]byte {
 	return operators
 }
 
+func (conf *Config) Theaters() map[Name][]byte {
+	theaters := make(map[Name][]byte)
+	for s, theaterConf := range conf.Theater {
+		name := NewName(s)
+		if !name.IsChannel() {
+			log.Fatal("config uses a non-channel for a theater!")
+		}
+		theaters[name] = theaterConf.PasswordBytes()
+	}
+	return theaters
+}
+
 func LoadConfig(filename string) (config *Config, err error) {
 	config = &Config{}
 	err = gcfg.ReadFileInto(config, filename)

irc/constants.go

@@ -30,6 +30,7 @@ const (
 	PRIVMSG StringCode = "PRIVMSG"
 	PROXY   StringCode = "PROXY"
 	QUIT    StringCode = "QUIT"
+	THEATER StringCode = "THEATER" // nonstandard
 	TIME    StringCode = "TIME"
 	TOPIC   StringCode = "TOPIC"
 	USER    StringCode = "USER"

irc/modes.go

@@ -83,6 +83,7 @@ const (
 	Quiet           ChannelMode = 'q' // flag
 	ReOp            ChannelMode = 'r' // flag
 	Secret          ChannelMode = 's' // flag, deprecated
+	Theater         ChannelMode = 'T' // flag arg, nonstandard
 	UserLimit       ChannelMode = 'l' // flag arg
 	Voice           ChannelMode = 'v' // arg
 )
@@ -90,7 +91,7 @@ const (
 var (
 	SupportedChannelModes = ChannelModes{
 		BanMask, ExceptMask, InviteMask, InviteOnly, Key, NoOutside,
-		OpOnlyTopic, Persistent, Private, UserLimit,
+		OpOnlyTopic, Persistent, Private, Theater, UserLimit,
 	}
 )
 

irc/reply.go

@@ -548,6 +548,11 @@ func (target *Client) ErrUnknownMode(mode ChannelMode, channel *Channel) {
 		"%s :is unknown mode char to me for %s", mode, channel)
 }
 
+func (target *Client) ErrConfiguredMode(mode ChannelMode) {
+	target.NumericReply(ERR_UNKNOWNMODE,
+		"%s :can only change this mode in daemon configuration", mode)
+}
+
 func (target *Client) ErrChannelIsFull(channel *Channel) {
 	target.NumericReply(ERR_CHANNELISFULL,
 		"%s :Cannot join channel (+l)", channel)

irc/server.go

@@ -40,6 +40,7 @@ type Server struct {
 	password  []byte
 	signals   chan os.Signal
 	whoWas    *WhoWasList
+	theaters  map[Name][]byte
 }
 
 var (
@@ -61,6 +62,7 @@ func NewServer(config *Config) *Server {
 		operators: config.Operators(),
 		signals:   make(chan os.Signal, len(SERVER_SIGNALS)),
 		whoWas:    NewWhoWasList(100),
+		theaters:  config.Theaters(),
 	}
 
 	if config.Server.Password != "" {

irc/theater.go

@@ -0,0 +1,121 @@
+package irc
+
+import (
+	"fmt"
+)
+
+type TheaterClient Name
+
+func (c TheaterClient) Id() Name {
+	return Name(c)
+}
+
+func (c TheaterClient) Nick() Name {
+	return Name(c)
+}
+
+type TheaterSubCommand string
+
+type theaterSubCommand interface {
+	String() string
+}
+
+type TheaterIdentifyCommand struct {
+	PassCommand
+	channel Name
+}
+
+func (m *TheaterIdentifyCommand) LoadPassword(s *Server) {
+	m.hash = s.theaters[m.channel]
+}
+
+func (cmd *TheaterIdentifyCommand) String() string {
+	return fmt.Sprintf("THEATER_IDENTIFY(channel=%s)", cmd.channel)
+}
+
+func (m *TheaterIdentifyCommand) HandleServer(s *Server) {
+	client := m.Client()
+	if !m.channel.IsChannel() {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	channel := s.channels.Get(m.channel)
+	if channel == nil {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	if (m.hash == nil) || (m.err != nil) {
+		client.ErrPasswdMismatch()
+		return
+	}
+
+	if channel.theaterUser == nil {
+		client.theaterChannels = append(client.theaterChannels, channel)
+		channel.flags[Theater] = true
+		channel.theaterUser = client
+	}
+}
+
+type TheaterPrivMsgCommand struct {
+	BaseCommand
+	channel Name
+	asNick  Name
+	message Text
+}
+
+func (cmd *TheaterPrivMsgCommand) String() string {
+	return fmt.Sprintf("THEATER_PRIVMSG(channel=%s, asNick=%s, message=%s)", cmd.channel, cmd.asNick, cmd.message)
+
+}
+func (m *TheaterPrivMsgCommand) HandleServer(s *Server) {
+	client := m.Client()
+	if !m.channel.IsChannel() {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	channel := s.channels.Get(m.channel)
+	if channel == nil {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	if channel.theaterUser == client {
+		for member := range channel.members {
+			member.Reply(RplPrivMsg(TheaterClient(m.asNick), channel, m.message))
+		}
+	}
+}
+
+type TheaterActionCommand struct {
+	BaseCommand
+	channel Name
+	asNick  Name
+	action  Text
+}
+
+func (cmd *TheaterActionCommand) String() string {
+	return fmt.Sprintf("THEATER_ACTION(channel=%s, asNick=%s, action=%s)", cmd.channel, cmd.asNick, cmd.action)
+}
+
+func (m *TheaterActionCommand) HandleServer(s *Server) {
+	client := m.Client()
+	if m.channel.IsChannel() {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	channel := s.channels.Get(m.channel)
+	if channel == nil {
+		client.ErrNoSuchChannel(m.channel)
+		return
+	}
+
+	if channel.theaterUser == client {
+		for member := range channel.members {
+			member.Reply(RplPrivMsg(TheaterClient(m.asNick), channel, NewText(fmt.Sprintf("\001ACTION %s\001", m.action))))
+		}
+	}
+}