do bcrypt in the client main routine

config.json

@@ -0,0 +1,13 @@
+{ "name": "irc.example.com",
+  "motd": "motd.txt",
+  "listeners": [
+      { "address": "localhost:7777" },
+      { "address": "[::1]:7777" } ],
+  "operators": [
+      { "name": "root",
+        "password": "JDJhJDEwJFRWWGUya2E3Unk5bnZlb2o3alJ0ZnVQQm9ZVW1HOE53L29nVHg5QWh5TnpaMmtOaEwya1Vl" } ],
+  "debug": {
+      "net": true,
+      "client": false,
+      "channel": false,
+      "server": false } }

ergonomadic.go

@@ -1,12 +1,35 @@
 package main
 
 import (
+	"code.google.com/p/go.crypto/bcrypt"
+	"encoding/base64"
+	"flag"
+	"fmt"
 	"github.com/jlatt/ergonomadic/irc"
 	"log"
 )
 
+func genPasswd(passwd string) {
+	log.Printf("encoding password \"%s\"\n", passwd)
+	crypted, err := bcrypt.GenerateFromPassword([]byte(passwd), bcrypt.DefaultCost)
+	if err != nil {
+		log.Fatal(err)
+	}
+	encoded := base64.StdEncoding.EncodeToString(crypted)
+	fmt.Println(encoded)
+}
+
 func main() {
-	config, err := irc.LoadConfig()
+	conf := flag.String("conf", "ergonomadic.json", "ergonomadic config file")
+	passwd := flag.String("genpasswd", "", "bcrypt a password")
+	flag.Parse()
+
+	if *passwd != "" {
+		genPasswd(*passwd)
+		return
+	}
+
+	config, err := irc.LoadConfig(*conf)
 	if err != nil {
 		log.Fatal(err)
 		return

irc/client.go

@@ -1,6 +1,7 @@
 package irc
 
 import (
+	"code.google.com/p/go.crypto/bcrypt"
 	"fmt"
 	"log"
 	"net"
@@ -15,6 +16,8 @@ type Client struct {
 	atime       time.Time
 	awayMessage string
 	channels    ChannelSet
+	checkPass   chan CheckCommand
+	commands    chan editableCommand
 	ctime       time.Time
 	flags       map[UserMode]bool
 	hasQuit     bool
@@ -34,19 +37,79 @@ type Client struct {
 func NewClient(server *Server, conn net.Conn) *Client {
 	now := time.Now()
 	client := &Client{
-		atime:    now,
-		channels: make(ChannelSet),
-		ctime:    now,
-		flags:    make(map[UserMode]bool),
-		phase:    server.InitPhase(),
-		server:   server,
+		atime:     now,
+		channels:  make(ChannelSet),
+		checkPass: make(chan CheckCommand),
+		commands:  make(chan editableCommand),
+		ctime:     now,
+		flags:     make(map[UserMode]bool),
+		phase:     server.InitPhase(),
+		server:    server,
 	}
-	client.socket = NewSocket(conn, client, server.commands)
+	client.socket = NewSocket(conn, client.commands)
 	client.loginTimer = time.AfterFunc(LOGIN_TIMEOUT, client.connectionTimeout)
+	go client.run()
 
 	return client
 }
 
+//
+// command goroutine
+//
+
+type CheckCommand interface {
+	Response() editableCommand
+}
+
+type CheckedPassCommand struct {
+	BaseCommand
+	isRight bool
+}
+
+type CheckPassCommand struct {
+	hash     []byte
+	password []byte
+}
+
+func (cmd *CheckPassCommand) CheckPassword() bool {
+	return bcrypt.CompareHashAndPassword(cmd.hash, cmd.password) == nil
+}
+
+func (cmd *CheckPassCommand) Response() editableCommand {
+	return &CheckedPassCommand{
+		isRight: cmd.CheckPassword(),
+	}
+}
+
+type CheckOperCommand struct {
+	CheckPassCommand
+}
+
+type CheckedOperCommand struct {
+	CheckedPassCommand
+}
+
+func (cmd *CheckOperCommand) Response() editableCommand {
+	response := &CheckedOperCommand{}
+	response.isRight = cmd.CheckPassword()
+	return response
+}
+
+func (client *Client) run() {
+	for command := range client.commands {
+		command.SetClient(client)
+		client.server.commands <- command
+
+		switch command.(type) {
+		case *PassCommand, *OperCommand:
+			cmd := <-client.checkPass
+			response := cmd.Response()
+			response.SetClient(client)
+			client.server.commands <- response
+		}
+	}
+}
+
 //
 // idle timer goroutine
 //
@@ -106,7 +169,6 @@ func (client *Client) destroy() {
 	for channel := range client.channels {
 		channel.Quit(client)
 	}
-	client.channels = nil
 
 	// clean up server
 
@@ -116,22 +178,16 @@ func (client *Client) destroy() {
 
 	if client.loginTimer != nil {
 		client.loginTimer.Stop()
-		client.loginTimer = nil
 	}
 	if client.idleTimer != nil {
 		client.idleTimer.Stop()
-		client.idleTimer = nil
 	}
 	if client.quitTimer != nil {
 		client.quitTimer.Stop()
-		client.quitTimer = nil
 	}
 
 	client.socket.Close()
 
-	client.socket = nil
-	client.server = nil
-
 	if DEBUG_CLIENT {
 		log.Printf("%s: destroyed", client)
 	}

irc/config.go

@@ -1,10 +1,24 @@
 package irc
 
 import (
+	"encoding/base64"
 	"encoding/json"
+	"log"
 	"os"
+	"path/filepath"
 )
 
+func decodePassword(password string) []byte {
+	if password == "" {
+		return nil
+	}
+	bytes, err := base64.StdEncoding.DecodeString(password)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return bytes
+}
+
 type Config struct {
 	Debug     map[string]bool
 	Listeners []ListenerConfig
@@ -14,11 +28,19 @@ type Config struct {
 	Password  string
 }
 
+func (conf *Config) PasswordBytes() []byte {
+	return decodePassword(conf.Password)
+}
+
 type OperatorConfig struct {
 	Name     string
 	Password string
 }
 
+func (conf *OperatorConfig) PasswordBytes() []byte {
+	return decodePassword(conf.Password)
+}
+
 type ListenerConfig struct {
 	Net         string
 	Address     string
@@ -30,10 +52,10 @@ func (config *ListenerConfig) IsTLS() bool {
 	return (config.Key != "") && (config.Certificate != "")
 }
 
-func LoadConfig() (config *Config, err error) {
+func LoadConfig(filename string) (config *Config, err error) {
 	config = &Config{}
 
-	file, err := os.Open("ergonomadic.json")
+	file, err := os.Open(filename)
 	if err != nil {
 		return
 	}
@@ -44,6 +66,10 @@ func LoadConfig() (config *Config, err error) {
 	if err != nil {
 		return
 	}
+
+	dir := filepath.Dir(filename)
+	config.MOTD = filepath.Join(dir, config.MOTD)
+
 	for _, lconf := range config.Listeners {
 		if lconf.Net == "" {
 			lconf.Net = "tcp"

irc/server.go

@@ -25,8 +25,8 @@ type Server struct {
 	motdFile  string
 	name      string
 	newConns  chan net.Conn
-	operators map[string]string
-	password  string
+	operators map[string][]byte
+	password  []byte
 	timeout   chan *Client
 }
 
@@ -34,19 +34,19 @@ func NewServer(config *Config) *Server {
 	server := &Server{
 		channels:  make(ChannelNameMap),
 		clients:   make(ClientNameMap),
-		commands:  make(chan Command, 16),
+		commands:  make(chan Command),
 		ctime:     time.Now(),
-		idle:      make(chan *Client, 16),
+		idle:      make(chan *Client),
 		motdFile:  config.MOTD,
 		name:      config.Name,
-		newConns:  make(chan net.Conn, 16),
-		operators: make(map[string]string),
-		password:  config.Password,
+		newConns:  make(chan net.Conn),
+		operators: make(map[string][]byte),
+		password:  config.PasswordBytes(),
 		timeout:   make(chan *Client),
 	}
 
 	for _, opConf := range config.Operators {
-		server.operators[opConf.Name] = opConf.Password
+		server.operators[opConf.Name] = opConf.PasswordBytes()
 	}
 
 	for _, listenerConf := range config.Listeners {
@@ -106,20 +106,20 @@ func (server *Server) Run() {
 		case conn := <-server.newConns:
 			NewClient(server, conn)
 
+		case cmd := <-server.commands:
+			server.ProcessCommand(cmd)
+
 		case client := <-server.idle:
 			client.Idle()
 
 		case client := <-server.timeout:
 			client.Quit("connection timeout")
-
-		case cmd := <-server.commands:
-			server.ProcessCommand(cmd)
 		}
 	}
 }
 
 func (server *Server) InitPhase() Phase {
-	if server.password == "" {
+	if server.password == nil {
 		return Registration
 	}
 	return Authorization
@@ -264,10 +264,20 @@ func (msg *CapCommand) HandleAuthServer(server *Server) {
 	// TODO
 }
 
-func (m *PassCommand) HandleAuthServer(s *Server) {
-	client := m.Client()
+func (msg *PassCommand) HandleAuthServer(server *Server) {
+	client := msg.Client()
+	cmd := &CheckPassCommand{
+		hash:     server.password,
+		password: []byte(msg.password),
+	}
+	go func() {
+		client.checkPass <- cmd
+	}()
+}
 
-	if s.password != m.password {
+func (msg *CheckedPassCommand) HandleAuthServer(server *Server) {
+	client := msg.Client()
+	if !msg.isRight {
 		client.ErrPasswdMismatch()
 		client.Quit("bad password")
 		return
@@ -593,13 +603,26 @@ func (msg *WhoCommand) HandleServer(server *Server) {
 func (msg *OperCommand) HandleServer(server *Server) {
 	client := msg.Client()
 
-	if server.operators[msg.name] != msg.password {
+	cmd := &CheckOperCommand{}
+	cmd.hash = server.operators[msg.name]
+	if cmd.hash == nil {
+		client.ErrPasswdMismatch()
+		return
+	}
+	cmd.password = []byte(msg.password)
+	go func() {
+		client.checkPass <- cmd
+	}()
+}
+
+func (msg *CheckedOperCommand) HandleServer(server *Server) {
+	client := msg.Client()
+	if !msg.isRight {
 		client.ErrPasswdMismatch()
 		return
 	}
 
 	client.flags[Operator] = true
-
 	client.RplYoureOper()
 	client.RplUModeIs(client)
 }

irc/socket.go

@@ -15,17 +15,15 @@ const (
 )
 
 type Socket struct {
-	client *Client
 	conn   net.Conn
 	reader *bufio.Reader
 	writer *bufio.Writer
 }
 
-func NewSocket(conn net.Conn, client *Client, commands chan<- Command) *Socket {
+func NewSocket(conn net.Conn, commands chan<- editableCommand) *Socket {
 	socket := &Socket{
 		conn:   conn,
 		reader: bufio.NewReader(conn),
-		client: client,
 		writer: bufio.NewWriter(conn),
 	}
 
@@ -45,12 +43,10 @@ func (socket *Socket) Close() {
 	}
 }
 
-func (socket *Socket) readLines(commands chan<- Command) {
-	hostnameLookup := &ProxyCommand{
+func (socket *Socket) readLines(commands chan<- editableCommand) {
+	commands <- &ProxyCommand{
 		hostname: AddrLookupHostname(socket.conn.RemoteAddr()),
 	}
-	hostnameLookup.SetClient(socket.client)
-	commands <- hostnameLookup
 
 	for {
 		line, err := socket.reader.ReadString('\n')
@@ -70,15 +66,12 @@ func (socket *Socket) readLines(commands chan<- Command) {
 			// TODO error messaging to client
 			continue
 		}
-		msg.SetClient(socket.client)
 		commands <- msg
 	}
 
-	msg := &QuitCommand{
+	commands <- &QuitCommand{
 		message: "connection closed",
 	}
-	msg.SetClient(socket.client)
-	commands <- msg
 }
 
 func (socket *Socket) Write(line string) (err error) {