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Code Issues Projects Releases Wiki Activity

Massive refactor to support multiple connections and NickServ.

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This commit is contained in:
Jeremy Latt 2012-12-16 19:13:53 -08:00
parent f2aedbaffd
commit 4b0cfa816c
10 changed files with 487 additions and 258 deletions
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2
build.sh
View File

@ -1,4 +1,4 @@
#!/bin/bash
export GOPATH="$PWD"
go get "code.google.com/p/go.crypto/bcrypt"
go install -v ergonomadic genpasswd
go install ergonomadic genpasswd

93
src/irc/channel.go
View File

@ -1,9 +1,13 @@
package irc
import (
"log"
)
type Channel struct {
server *Server
replies chan<- Reply
commands chan<- ChannelCommand
replies chan<- Reply
name string
key string
topic string
@ -27,28 +31,6 @@ type ChannelCommand interface {
HandleChannel(channel *Channel)
}
type JoinChannelCommand struct {
*JoinCommand
key string
}
type PartChannelCommand struct {
Command
message string
}
type GetTopicChannelCommand struct {
*TopicCommand
}
type SetTopicChannelCommand struct {
*TopicCommand
}
type PrivMsgChannelCommand struct {
*PrivMsgCommand
}
// NewChannel creates a new channel from a `Server` and a `name` string, which
// must be unique on the server.
func NewChannel(s *Server, name string) *Channel {
@ -69,14 +51,17 @@ func NewChannel(s *Server, name string) *Channel {
// Forward `Reply`s to all `User`s of the `Channel`.
func (ch *Channel) receiveReplies(replies <-chan Reply) {
for reply := range replies {
for client := range ch.members {
client.replies <- reply
for user := range ch.members {
if user != reply.Source() {
user.replies <- reply
}
}
}
}
func (ch *Channel) receiveCommands(commands <-chan ChannelCommand) {
for command := range commands {
log.Printf("%s %T %+v", ch.Id(), command, command)
command.HandleChannel(ch)
}
}
@ -95,29 +80,46 @@ func (ch *Channel) IsEmpty() bool {
return len(ch.members) == 0
}
func (channel *Channel) GetTopic(replier Replier) {
if channel.topic == "" {
replier.Replies() <- RplNoTopic(channel)
return
}
replier.Replies() <- RplTopic(channel)
}
func (channel *Channel) Id() string {
return channel.name
}
func (channel *Channel) PublicId() string {
return channel.name
}
//
// commands
//
func (m *JoinChannelCommand) HandleChannel(channel *Channel) {
func (m *JoinCommand) HandleChannel(channel *Channel) {
client := m.Client()
user := client.user
if channel.key != m.key {
if channel.key != m.channels[channel.name] {
client.user.replies <- ErrBadChannelKey(channel)
return
}
channel.members.Add(client.user)
client.user.channels.Add(channel)
channel.members.Add(user)
user.channels.Add(channel)
channel.replies <- RplJoin(channel, user)
channel.GetTopic(user)
client.user.replies <- RplNamReply(channel)
client.user.replies <- RplEndOfNames(channel.server)
user.replies <- RplNamReply(channel)
user.replies <- RplEndOfNames(channel.server)
}
func (m *PartChannelCommand) HandleChannel(channel *Channel) {
func (m *PartCommand) HandleChannel(channel *Channel) {
user := m.Client().user
if !channel.members[user] {
@ -140,25 +142,7 @@ func (m *PartChannelCommand) HandleChannel(channel *Channel) {
}
}
func (channel *Channel) GetTopic(user *User) {
if !channel.members[user] {
user.replies <- ErrNotOnChannel(channel)
return
}
if channel.topic == "" {
user.replies <- RplNoTopic(channel)
return
}
user.replies <- RplTopic(channel)
}
func (m *GetTopicChannelCommand) HandleChannel(channel *Channel) {
channel.GetTopic(m.Client().user)
}
func (m *SetTopicChannelCommand) HandleChannel(channel *Channel) {
func (m *TopicCommand) HandleChannel(channel *Channel) {
user := m.Client().user
if !channel.members[user] {
@ -166,6 +150,11 @@ func (m *SetTopicChannelCommand) HandleChannel(channel *Channel) {
return
}
if m.topic == "" {
channel.GetTopic(user)
return
}
channel.topic = m.topic
if channel.topic == "" {
@ -176,6 +165,6 @@ func (m *SetTopicChannelCommand) HandleChannel(channel *Channel) {
channel.replies <- RplTopic(channel)
}
func (m *PrivMsgChannelCommand) HandleChannel(channel *Channel) {
func (m *PrivMsgCommand) HandleChannel(channel *Channel) {
channel.replies <- RplPrivMsgChannel(channel, m.Client().user, m.message)
}

25
src/irc/client.go
View File

@ -7,9 +7,13 @@ import (
"time"
)
type Replier interface {
Identifier
Replies() chan<- Reply
}
type Client struct {
conn net.Conn
replies chan<- Reply
username string
realname string
hostname string
@ -20,6 +24,12 @@ type Client struct {
server *Server
atime time.Time
user *User
replies chan<- Reply
}
type ClientMessage interface {
Client() *Client
SetClient(*Client)
}
type ClientSet map[*Client]bool
@ -36,10 +46,7 @@ func NewClient(server *Server, conn net.Conn) *Client {
replies: replies,
}
// Connect the conn to the server.
go client.readConn(read)
// Connect the reply channel to the conn.
go client.writeConn(write, replies)
return client
@ -51,7 +58,7 @@ func (c *Client) readConn(recv <-chan string) {
m, err := ParseCommand(str)
if err != nil {
// TODO handle error
c.replies <- ErrNeedMoreParams(c.server, str)
continue
}
@ -68,6 +75,14 @@ func (c *Client) writeConn(write chan<- string, replies <-chan Reply) {
}
}
func (c *Client) Replies() chan<- Reply {
return c.replies
}
func (c *Client) Server() *Server {
return c.server
}
func (c *Client) Nick() string {
if c.user != nil {
return c.user.nick

137
src/irc/commands.go
View File

@ -6,12 +6,6 @@ import (
"strings"
)
type Command interface {
Client() *Client
SetClient(*Client)
Handle(*Server)
}
var (
NotEnoughArgsError = errors.New("not enough arguments")
)
@ -28,7 +22,59 @@ func (base *BaseCommand) SetClient(c *Client) {
base.client = c
}
// unknown <command> [args...]
var (
ErrParseCommand = errors.New("failed to parse message")
parseCommandFuncs = map[string]func([]string) (Command, error){
"JOIN": NewJoinCommand,
"MODE": NewModeCommand,
"NICK": NewNickCommand,
"PART": NewPartCommand,
"PASS": NewPassCommand,
"PING": NewPingCommand,
"PONG": NewPongCommand,
"PRIVMSG": NewPrivMsgCommand,
"QUIT": NewQuitCommand,
"TOPIC": NewTopicCommand,
"USER": NewUserMsgCommand,
}
)
func ParseCommand(line string) (Command, error) {
command, args := parseLine(line)
constructor := parseCommandFuncs[command]
if constructor == nil {
return NewUnknownCommand(command, args), nil
}
return constructor(args)
}
func parseArg(line string) (arg string, rest string) {
if line == "" {
return
}
if strings.HasPrefix(line, ":") {
arg = line[1:]
} else {
parts := strings.SplitN(line, " ", 2)
arg = parts[0]
if len(parts) > 1 {
rest = parts[1]
}
}
return
}
func parseLine(line string) (command string, args []string) {
args = make([]string, 0)
for arg, rest := parseArg(line); arg != ""; arg, rest = parseArg(rest) {
args = append(args, arg)
}
command, args = strings.ToUpper(args[0]), args[1:]
return
}
// <command> [args...]
type UnknownCommand struct {
*BaseCommand
@ -36,7 +82,7 @@ type UnknownCommand struct {
args []string
}
func NewUnknownCommand(command string, args []string) Command {
func NewUnknownCommand(command string, args []string) *UnknownCommand {
return &UnknownCommand{
BaseCommand: &BaseCommand{},
command: command,
@ -44,10 +90,6 @@ func NewUnknownCommand(command string, args []string) Command {
}
}
func (m *UnknownCommand) Handle(s *Server) {
m.Client().replies <- ErrUnknownCommand(s, m.command)
}
// PING <server1> [ <server2> ]
type PingCommand struct {
@ -128,7 +170,7 @@ func NewNickCommand(args []string) (Command, error) {
// USER <user> <mode> <unused> <realname>
type UserCommand struct {
type UserMsgCommand struct {
*BaseCommand
user string
mode uint8
@ -136,11 +178,11 @@ type UserCommand struct {
realname string
}
func NewUserCommand(args []string) (Command, error) {
func NewUserMsgCommand(args []string) (Command, error) {
if len(args) != 4 {
return nil, NotEnoughArgsError
}
msg := &UserCommand{
msg := &UserMsgCommand{
BaseCommand: &BaseCommand{},
user: args[0],
unused: args[2],
@ -174,26 +216,36 @@ func NewQuitCommand(args []string) (Command, error) {
type JoinCommand struct {
*BaseCommand
channels []string
keys []string
channels map[string]string
zero bool
}
func NewJoinCommand(args []string) (Command, error) {
msg := &JoinCommand{
BaseCommand: &BaseCommand{},
}
if len(args) > 0 {
if args[0] == "0" {
msg.zero = true
} else {
msg.channels = strings.Split(args[0], ",")
channels: make(map[string]string),
}
if len(args) == 0 {
return nil, NotEnoughArgsError
}
if args[0] == "0" {
msg.zero = true
return msg, nil
}
channels := strings.Split(args[0], ",")
keys := make([]string, len(channels))
if len(args) > 1 {
msg.keys = strings.Split(args[1], ",")
for i, key := range strings.Split(args[1], ",") {
keys[i] = key
}
}
for i, channel := range channels {
msg.channels[channel] = keys[i]
}
return msg, nil
}
@ -268,40 +320,25 @@ func NewTopicCommand(args []string) (Command, error) {
return msg, nil
}
// LOGIN <nick> <password>
type LoginCommand struct {
type ModeCommand struct {
*BaseCommand
nick string
password string
nickname string
modes string
}
func NewLoginCommand(args []string) (Command, error) {
if len(args) < 2 {
func NewModeCommand(args []string) (Command, error) {
if len(args) == 0 {
return nil, NotEnoughArgsError
}
return &LoginCommand{
cmd := &ModeCommand{
BaseCommand: &BaseCommand{},
nick: args[0],
password: args[1],
}, nil
nickname: args[0],
}
// RESERVE <nick> <password>
type ReserveCommand struct {
*BaseCommand
nick string
password string
if len(args) > 1 {
cmd.modes = args[1]
}
func NewReserveCommand(args []string) (Command, error) {
if len(args) < 2 {
return nil, NotEnoughArgsError
}
return &ReserveCommand{
BaseCommand: &BaseCommand{},
nick: args[0],
password: args[1],
}, nil
return cmd, nil
}

135
src/irc/nickserv.go Normal file
View File

@ -0,0 +1,135 @@
package irc
import (
"log"
)
type NickServCommand interface {
ClientMessage
HandleNickServ(*NickServ)
}
type NickServ struct {
*Service
}
func NewNickServ(s *Server) *NickServ {
ns := &NickServ{}
ns.Service = NewService(s, "NickServ", func(m *PrivMsgCommand) {
m.HandleNickServ(ns)
})
return ns
}
var (
parseNickServCommandFuncs = map[string]func([]string) (NickServCommand, error){
"REGISTER": NewRegisterCommand,
"IDENTIFY": NewIdentifyCommand,
}
)
//
// commands
//
func (m *PrivMsgCommand) HandleNickServ(ns *NickServ) {
command, args := parseLine(m.message)
constructor := parseNickServCommandFuncs[command]
if constructor == nil {
ns.Reply(m.Client(), "Unknown command.")
return
}
cmd, err := constructor(args)
if err != nil {
ns.Reply(m.Client(), "Not enough parameters.")
return
}
cmd.SetClient(m.Client())
log.Printf("%s %T %+v", ns.Id(), cmd, cmd)
cmd.HandleNickServ(ns)
}
//
// sub-commands
//
type RegisterCommand struct {
*BaseCommand
password string
email string
}
func NewRegisterCommand(args []string) (NickServCommand, error) {
if len(args) == 0 {
return nil, NotEnoughArgsError
}
cmd := &RegisterCommand{
BaseCommand: &BaseCommand{},
password: args[0],
}
if len(args) > 1 {
cmd.email = args[1]
}
return cmd, nil
}
func (m *RegisterCommand) HandleNickServ(ns *NickServ) {
client := m.Client()
if client.user != nil {
ns.Reply(client, "You are already registered.")
return
}
if ns.server.users[client.nick] != nil {
ns.Reply(client, "That nick is already registered.")
return
}
user := NewUser(client.nick, m.password, ns.server)
ns.server.users[client.nick] = user
ns.Reply(client, "You have registered.")
if !user.Login(client, client.nick, m.password) {
ns.Reply(client, "Login failed.")
}
ns.Reply(client, "Logged in.")
}
type IdentifyCommand struct {
*BaseCommand
password string
}
func NewIdentifyCommand(args []string) (NickServCommand, error) {
if len(args) == 0 {
return nil, NotEnoughArgsError
}
return &IdentifyCommand{
BaseCommand: &BaseCommand{},
password: args[0],
}, nil
}
func (m *IdentifyCommand) HandleNickServ(ns *NickServ) {
client := m.Client()
if client.user != nil {
ns.Reply(client, "That nick is already registered.")
return
}
user := ns.server.users[client.nick]
if user == nil {
ns.Reply(client, "No such nick.")
return
}
if !user.Login(client, client.nick, m.password) {
ns.Reply(client, "Login failed.")
}
ns.Reply(client, "Logged in.")
}

60
src/irc/parse.go
View File

@ -1,60 +0,0 @@
package irc
import (
"errors"
"strings"
)
type ParseFunc func([]string) (Command, error)
var (
ErrParseCommand = errors.New("failed to parse message")
parseCommandFuncs = map[string]ParseFunc{
"JOIN": NewJoinCommand,
"LOGIN": NewLoginCommand,
"NICK": NewNickCommand,
"PART": NewPartCommand,
"PASS": NewPassCommand,
"PING": NewPingCommand,
"PONG": NewPongCommand,
"PRIVMSG": NewPrivMsgCommand,
"QUIT": NewQuitCommand,
"TOPIC": NewTopicCommand,
"USER": NewUserCommand,
}
)
func ParseCommand(line string) (Command, error) {
command, args := parseLine(line)
constructor := parseCommandFuncs[command]
if constructor == nil {
return NewUnknownCommand(command, args), nil
}
return constructor(args)
}
func parseArg(line string) (arg string, rest string) {
if line == "" {
return
}
if strings.HasPrefix(line, ":") {
arg = line[1:]
} else {
parts := strings.SplitN(line, " ", 2)
arg = parts[0]
if len(parts) > 1 {
rest = parts[1]
}
}
return
}
func parseLine(line string) (command string, args []string) {
args = make([]string, 0)
for arg, rest := parseArg(line); arg != ""; arg, rest = parseArg(rest) {
args = append(args, arg)
}
command, args = args[0], args[1:]
return
}

14
src/irc/reply.go
View File

@ -9,10 +9,12 @@ import (
type Identifier interface {
Id() string
PublicId() string
Nick() string
}
type Reply interface {
String(client *Client) string
Source() Identifier
}
type BasicReply struct {
@ -21,7 +23,8 @@ type BasicReply struct {
message string
}
func NewBasicReply(source Identifier, code string, format string, args ...interface{}) *BasicReply {
func NewBasicReply(source Identifier, code string,
format string, args ...interface{}) *BasicReply {
message := fmt.Sprintf(format, args...)
fullMessage := fmt.Sprintf(":%s %s %s\r\n", source.Id(), code, message)
return &BasicReply{source, code, fullMessage}
@ -31,11 +34,16 @@ func (reply *BasicReply) String(client *Client) string {
return reply.message
}
func (reply *BasicReply) Source() Identifier {
return reply.source
}
type NumericReply struct {
*BasicReply
}
func NewNumericReply(source Identifier, code string, format string, args ...interface{}) *NumericReply {
func NewNumericReply(source Identifier, code string,
format string, args ...interface{}) *NumericReply {
return &NumericReply{&BasicReply{source, code, fmt.Sprintf(format, args...)}}
}
@ -47,7 +55,7 @@ func (reply *NumericReply) String(client *Client) string {
// messaging replies
func RplPrivMsg(source Identifier, target Identifier, message string) Reply {
return NewBasicReply(source, RPL_PRIVMSG, "%s :%s", target, message)
return NewBasicReply(source, RPL_PRIVMSG, "%s :%s", target.Nick(), message)
}
func RplNick(client *Client, newNick string) Reply {

155
src/irc/server.go
View File

@ -10,15 +10,22 @@ import (
type ClientNameMap map[string]*Client
type ChannelNameMap map[string]*Channel
type UserNameMap map[string]*User
type ServiceNameMap map[string]*Service
type Command interface {
ClientMessage
Handle(*Server)
}
type Server struct {
hostname string
ctime time.Time
name string
commands chan<- Command
password []byte
users UserNameMap
channels ChannelNameMap
services ServiceNameMap
commands chan<- Command
}
func NewServer(name string) *Server {
@ -29,13 +36,16 @@ func NewServer(name string) *Server {
commands: commands,
users: make(UserNameMap),
channels: make(ChannelNameMap),
services: make(ServiceNameMap),
}
go server.receiveCommands(commands)
NewNickServ(server)
return server
}
func (server *Server) receiveCommands(commands <-chan Command) {
for command := range commands {
log.Printf("%s %T %+v", server.Id(), command, command)
command.Client().atime = time.Now()
command.Handle(server)
}
@ -75,10 +85,10 @@ func (s *Server) GetOrMakeChannel(name string) *Channel {
// Send a message to clients of channels fromClient is a member.
func (s *Server) InterestedUsers(fromUser *User) UserSet {
users := make(UserSet)
users[fromUser] = true
users.Add(fromUser)
for channel := range fromUser.channels {
for user := range channel.members {
users[user] = true
users.Add(user)
}
}
@ -97,11 +107,6 @@ func (s *Server) tryRegister(c *Client) {
}
}
func (s *Server) ChangeUserMode(c *Client, modes []string) {
// Don't allow any mode changes.
c.replies <- RplUModeIs(s, c)
}
func (s *Server) Id() string {
return s.hostname
}
@ -110,6 +115,10 @@ func (s *Server) PublicId() string {
return s.Id()
}
func (s *Server) Nick() string {
return s.name
}
func (s *Server) DeleteChannel(channel *Channel) {
delete(s.channels, channel.name)
}
@ -118,6 +127,10 @@ func (s *Server) DeleteChannel(channel *Channel) {
// commands
//
func (m *UnknownCommand) Handle(s *Server) {
m.Client().replies <- ErrUnknownCommand(s, m.command)
}
func (m *PingCommand) Handle(s *Server) {
m.Client().replies <- RplPong(s)
}
@ -149,7 +162,7 @@ func (m *NickCommand) Handle(s *Server) {
c.user.replies <- ErrNoPrivileges(s)
}
func (m *UserCommand) Handle(s *Server) {
func (m *UserMsgCommand) Handle(s *Server) {
c := m.Client()
if c.username != "" {
c.replies <- ErrAlreadyRegistered(s)
@ -162,19 +175,25 @@ func (m *UserCommand) Handle(s *Server) {
func (m *QuitCommand) Handle(s *Server) {
c := m.Client()
user := c.user
if user != nil {
reply := RplQuit(c, m.message)
for user := range s.InterestedUsers(c.user) {
user.replies <- reply
}
c.conn.Close()
user := c.user
user.LogoutClient(c)
if !user.HasClients() {
cmd := &PartChannelCommand{
Command: m,
}
for channel := range c.user.channels {
c.conn.Close()
if user == nil {
return
}
user.LogoutClient(c)
if !user.HasClients() {
cmd := &PartCommand{
BaseCommand: &BaseCommand{c},
}
for channel := range user.channels {
channel.commands <- cmd
}
}
@ -182,27 +201,39 @@ func (m *QuitCommand) Handle(s *Server) {
func (m *JoinCommand) Handle(s *Server) {
c := m.Client()
if c.user == nil {
for name := range m.channels {
c.replies <- ErrNoSuchChannel(s, name)
}
return
}
if m.zero {
cmd := &PartChannelCommand{
Command: m,
cmd := &PartCommand{
BaseCommand: &BaseCommand{c},
}
for channel := range c.user.channels {
channel.commands <- cmd
}
} else {
for i, name := range m.channels {
key := ""
if len(m.keys) > i {
key = m.keys[i]
return
}
s.GetOrMakeChannel(name).commands <- &JoinChannelCommand{m, key}
}
for name := range m.channels {
s.GetOrMakeChannel(name).commands <- m
}
}
func (m *PartCommand) Handle(s *Server) {
user := m.Client().user
if user == nil {
for _, chname := range m.channels {
m.Client().replies <- ErrNoSuchChannel(s, chname)
}
return
}
for _, chname := range m.channels {
channel := s.channels[chname]
@ -211,82 +242,60 @@ func (m *PartCommand) Handle(s *Server) {
continue
}
channel.commands <- &PartChannelCommand{m, m.message}
channel.commands <- m
}
}
func (m *TopicCommand) Handle(s *Server) {
user := m.Client().user
if user == nil {
m.Client().replies <- ErrNoSuchChannel(s, m.channel)
return
}
channel := s.channels[m.channel]
if channel == nil {
user.replies <- ErrNoSuchChannel(s, m.channel)
return
}
if m.topic == "" {
channel.commands <- &GetTopicChannelCommand{m}
return
}
channel.commands <- &SetTopicChannelCommand{m}
channel.commands <- m
}
func (m *PrivMsgCommand) Handle(s *Server) {
service := s.services[m.target]
if service != nil {
service.commands <- m
return
}
user := m.Client().user
if user == nil {
m.Client().replies <- ErrNoSuchNick(s, m.target)
return
}
if m.TargetIsChannel() {
channel := s.channels[m.target]
if channel == nil {
user.replies <- ErrNoSuchNick(s, m.target)
user.replies <- ErrNoSuchChannel(s, m.target)
return
}
channel.commands <- &PrivMsgChannelCommand{m}
channel.commands <- m
return
}
target := s.users[m.target]
if target != nil {
target.replies <- ErrNoSuchNick(s, m.target)
if target == nil {
user.replies <- ErrNoSuchNick(s, m.target)
return
}
target.replies <- RplPrivMsg(user, target, m.message)
target.commands <- m
}
func (m *LoginCommand) Handle(s *Server) {
client := m.Client()
if client.user != nil {
client.replies <- ErrAlreadyRegistered(s)
return
}
user := s.users[m.nick]
if user == nil {
client.replies <- ErrNoSuchNick(s, m.nick)
return
}
if !user.Login(client, m.nick, m.password) {
client.replies <- ErrRestricted(s)
return
}
client.replies <- RplNick(client, m.nick)
// TODO join channels
}
func (m *ReserveCommand) Handle(s *Server) {
client := m.Client()
if client.user != nil {
client.replies <- ErrAlreadyRegistered(s)
return
}
if s.users[m.nick] != nil {
client.replies <- ErrNickNameInUse(s, m.nick)
return
}
s.users[m.nick] = NewUser(m.nick, m.password, s)
func (m *ModeCommand) Handle(s *Server) {
m.Client().replies <- RplUModeIs(s, m.Client())
}

64
src/irc/service.go Normal file
View File

@ -0,0 +1,64 @@
package irc
import (
"fmt"
"log"
)
type ServiceCommand interface {
Command
HandleService(*Service)
}
type PrivMsgCommandFunc func(*PrivMsgCommand)
type Service struct {
server *Server
name string
commands chan<- ServiceCommand
Handle PrivMsgCommandFunc
}
func NewService(s *Server, name string, Handle PrivMsgCommandFunc) *Service {
commands := make(chan ServiceCommand)
service := &Service{
server: s,
name: name,
commands: commands,
Handle: Handle,
}
go service.receiveCommands(commands)
s.services[name] = service
return service
}
func (service *Service) receiveCommands(commands <-chan ServiceCommand) {
for command := range commands {
log.Printf("%s %T %+V", service.Id(), command, command)
command.HandleService(service)
}
}
func (service *Service) Id() string {
return fmt.Sprintf("%s!%s@%s", service.name, service.name, service.server.name)
}
func (service *Service) PublicId() string {
return service.Id()
}
func (service *Service) Nick() string {
return service.name
}
func (service *Service) Reply(client *Client, message string) {
client.replies <- RplPrivMsg(service, client, message)
}
//
// commands
//
func (m *PrivMsgCommand) HandleService(s *Service) {
s.Handle(m)
}

40
src/irc/user.go
View File

@ -3,16 +3,22 @@ package irc
import (
"code.google.com/p/go.crypto/bcrypt"
"fmt"
"log"
)
type UserCommand interface {
Command
HandleUser(*User)
}
type User struct {
nick string
hash []byte
server *Server
replies chan<- Reply
commands <-chan Command
clients ClientSet
channels ChannelSet
commands chan<- UserCommand
replies chan<- Reply
}
type UserSet map[*User]bool
@ -30,21 +36,32 @@ func NewUser(nick string, password string, server *Server) *User {
if err != nil {
panic("bcrypt failed; cannot generate password hash")
}
commands := make(chan UserCommand)
replies := make(chan Reply)
user := &User{
nick: nick,
hash: hash,
server: server,
clients: make(ClientSet),
channels: make(ChannelSet),
replies: replies,
}
go user.receiveCommands(commands)
go user.receiveReplies(replies)
return user
}
func (user *User) receiveCommands(commands <-chan UserCommand) {
for command := range commands {
log.Printf("%s %T %+v", user.Id(), command, command)
command.HandleUser(user)
}
}
// Distribute replies to clients.
func (user *User) receiveReplies(replies <-chan Reply) {
for reply := range replies {
log.Printf("%s %T %+v", user.Id(), reply, reply)
for client := range user.clients {
client.replies <- reply
}
@ -82,8 +99,11 @@ func (user *User) Login(c *Client, nick string, password string) bool {
user.clients[c] = true
c.user = user
c.replies <- RplNick(c, user.nick)
// TODO join channels
for channel := range user.channels {
channel.GetTopic(c)
c.replies <- RplNamReply(channel)
c.replies <- RplEndOfNames(channel.server)
}
return true
}
@ -98,3 +118,15 @@ func (user *User) LogoutClient(c *Client) bool {
func (user *User) HasClients() bool {
return len(user.clients) > 0
}
func (user *User) Replies() chan<- Reply {
return user.replies
}
//
// commands
//
func (m *PrivMsgCommand) HandleUser(user *User) {
user.replies <- RplPrivMsg(m.Client(), user, m.message)
}