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Use the internal event handling for initial pass/user/nick messages. 

Added constants for internal and named events.
gofmt'ed all files and updated client.go/documentation.
This commit is contained in:
Chris Rhodes 2013-02-15 19:24:10 -08:00
parent a674267128
commit 8e16f59b5f
13 changed files with 154 additions and 98 deletions
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4
README.md
View File

@ -24,11 +24,11 @@ Synopsis:
// Add handlers to do things here!
// e.g. join a channel on connect.
c.AddHandler("connected",
c.HandleFunc(irc.CONNECTED,
func(conn *irc.Conn, line *irc.Line) { conn.Join("#channel") })
// And a signal on disconnect
quit := make(chan bool)
c.AddHandler("disconnected",
c.HandleFunc(irc.DISCONNECTED,
func(conn *irc.Conn, line *irc.Line) { quit <- true })
// Tell client to connect

12
client.go
View File

@ -1,11 +1,11 @@
package main
import (
irc "github.com/fluffle/goirc/client"
"bufio"
"flag"
"fmt"
irc "github.com/fluffle/goirc/client"
"os"
"bufio"
"strings"
)
@ -16,14 +16,14 @@ func main() {
flag.Parse()
// create new IRC connection
c := irc.SimpleClient("GoTest", "gotest")
c := irc.Client("GoTest", "gotest")
c.EnableStateTracking()
c.AddHandler("connected",
c.HandleFunc(irc.CONNECTED,
func(conn *irc.Conn, line *irc.Line) { conn.Join(*channel) })
// Set up a handler to notify of disconnect events.
quit := make(chan bool)
c.AddHandler("disconnected",
c.HandleFunc(irc.DISCONNECTED,
func(conn *irc.Conn, line *irc.Line) { quit <- true })
// set up a goroutine to read commands from stdin
@ -36,6 +36,8 @@ func main() {
if err != nil {
// wha?, maybe ctrl-D...
close(in)
reallyquit = true
c.Quit("")
break
}
// no point in sending empty lines down the channel

75
client/commands.go
View File

@ -2,6 +2,34 @@ package client
import "strings"
const (
INIT = "init"
CONNECTED = "connected"
DISCONNECTED = "disconnected"
ACTION = "ACTION"
AWAY = "AWAY"
CTCP = "CTCP"
CTCPREPLY = "CTCPREPLY"
INVITE = "INVITE"
JOIN = "JOIN"
KICK = "KICK"
MODE = "MODE"
NICK = "NICK"
NOTICE = "NOTICE"
OPER = "OPER"
PART = "PART"
PASS = "PASS"
PING = "PING"
PONG = "PONG"
PRIVMSG = "PRIVMSG"
QUIT = "QUIT"
TOPIC = "TOPIC"
USER = "USER"
VERSION = "VERSION"
WHO = "WHO"
WHOIS = "WHOIS"
)
// this file contains the various commands you can
// send to the server using an Conn connection
@ -14,18 +42,18 @@ import "strings"
func (conn *Conn) Raw(rawline string) { conn.out <- rawline }
// Pass() sends a PASS command to the server
func (conn *Conn) Pass(password string) { conn.out <- "PASS " + password }
func (conn *Conn) Pass(password string) { conn.out <- PASS + " " + password }
// Nick() sends a NICK command to the server
func (conn *Conn) Nick(nick string) { conn.out <- "NICK " + nick }
func (conn *Conn) Nick(nick string) { conn.out <- NICK + " " + nick }
// User() sends a USER command to the server
func (conn *Conn) User(ident, name string) {
conn.out <- "USER " + ident + " 12 * :" + name
conn.out <- USER + " " + ident + " 12 * :" + name
}
// Join() sends a JOIN command to the server
func (conn *Conn) Join(channel string) { conn.out <- "JOIN " + channel }
func (conn *Conn) Join(channel string) { conn.out <- JOIN + " " + channel }
// Part() sends a PART command to the server with an optional part message
func (conn *Conn) Part(channel string, message ...string) {
@ -33,7 +61,7 @@ func (conn *Conn) Part(channel string, message ...string) {
if msg != "" {
msg = " :" + msg
}
conn.out <- "PART " + channel + msg
conn.out <- PART + " " + channel + msg
}
// Kick() sends a KICK command to remove a nick from a channel
@ -42,7 +70,7 @@ func (conn *Conn) Kick(channel, nick string, message ...string) {
if msg != "" {
msg = " :" + msg
}
conn.out <- "KICK " + channel + " " + nick + msg
conn.out <- KICK + " " + channel + " " + nick + msg
}
// Quit() sends a QUIT command to the server with an optional quit message
@ -51,20 +79,20 @@ func (conn *Conn) Quit(message ...string) {
if msg == "" {
msg = "GoBye!"
}
conn.out <- "QUIT :" + msg
conn.out <- QUIT + " :" + msg
}
// Whois() sends a WHOIS command to the server
func (conn *Conn) Whois(nick string) { conn.out <- "WHOIS " + nick }
func (conn *Conn) Whois(nick string) { conn.out <- WHOIS + " " + nick }
//Who() sends a WHO command to the server
func (conn *Conn) Who(nick string) { conn.out <- "WHO " + nick }
func (conn *Conn) Who(nick string) { conn.out <- WHO + " " + nick }
// Privmsg() sends a PRIVMSG to the target t
func (conn *Conn) Privmsg(t, msg string) { conn.out <- "PRIVMSG " + t + " :" + msg }
func (conn *Conn) Privmsg(t, msg string) { conn.out <- PRIVMSG + " " + t + " :" + msg }
// Notice() sends a NOTICE to the target t
func (conn *Conn) Notice(t, msg string) { conn.out <- "NOTICE " + t + " :" + msg }
func (conn *Conn) Notice(t, msg string) { conn.out <- NOTICE + " " + t + " :" + msg }
// Ctcp() sends a (generic) CTCP message to the target t
// with an optional argument
@ -87,10 +115,10 @@ func (conn *Conn) CtcpReply(t, ctcp string, arg ...string) {
}
// Version() sends a CTCP "VERSION" to the target t
func (conn *Conn) Version(t string) { conn.Ctcp(t, "VERSION") }
func (conn *Conn) Version(t string) { conn.Ctcp(t, VERSION) }
// Action() sends a CTCP "ACTION" to the target t
func (conn *Conn) Action(t, msg string) { conn.Ctcp(t, "ACTION", msg) }
func (conn *Conn) Action(t, msg string) { conn.Ctcp(t, ACTION, msg) }
// Topic() sends a TOPIC command to the channel
// Topic(channel) retrieves the current channel topic (see "332" handler)
@ -100,7 +128,7 @@ func (conn *Conn) Topic(channel string, topic ...string) {
if t != "" {
t = " :" + t
}
conn.out <- "TOPIC " + channel + t
conn.out <- TOPIC + " " + channel + t
}
// Mode() sends a MODE command to the server. This one can get complicated if
@ -115,7 +143,7 @@ func (conn *Conn) Mode(t string, modestring ...string) {
if mode != "" {
mode = " " + mode
}
conn.out <- "MODE " + t + mode
conn.out <- MODE + " " + t + mode
}
// Away() sends an AWAY command to the server
@ -126,15 +154,18 @@ func (conn *Conn) Away(message ...string) {
if msg != "" {
msg = " :" + msg
}
conn.out <- "AWAY" + msg
conn.out <- AWAY + msg
}
// Invite() sends an INVITE command to the server
func (conn *Conn) Invite(nick, channel string) {
conn.out <- "INVITE " + nick + " " + channel
}
func (conn *Conn) Invite(nick, channel string) { conn.out <- INVITE + " " + nick + " " + channel }
// Oper() sends an OPER command to the server
func (conn *Conn) Oper(user, pass string) {
conn.out <- "OPER " + user + " " + pass
}
func (conn *Conn) Oper(user, pass string) { conn.out <- OPER + " " + user + " " + pass }
// Ping() sends a PING command to the server
// A PONG response is to be expected afterwards
func (conn *Conn) Ping(message string) { conn.out <- PING + " :" + message }
// Pong() sends a PONG command to the server
func (conn *Conn) Pong(message string) { conn.out <- PONG + " :" + message }

6
client/commands_test.go
View File

@ -75,4 +75,10 @@ func TestClientCommands(t *testing.T) {
c.Oper("user", "pass")
s.nc.Expect("OPER user pass")
c.Ping("woot")
s.nc.Expect("PING :woot")
c.Pong("pwoot")
s.nc.Expect("PONG :pwoot")
}

15
client/connection.go
View File

@ -18,6 +18,7 @@ type Conn struct {
Host string
Me *state.Nick
Network string
password string
// Handlers and Commands
handlers *hSet
@ -164,13 +165,12 @@ func (conn *Conn) Connect(host string, pass ...string) error {
}
conn.Host = host
conn.Connected = true
conn.postConnect()
if len(pass) > 0 {
conn.Pass(pass[0])
conn.password = pass[0]
} else {
conn.password = ""
}
conn.Nick(conn.Me.Nick)
conn.User(conn.Me.Ident, conn.Me.Name)
conn.postConnect()
return nil
}
@ -188,6 +188,7 @@ func (conn *Conn) postConnect() {
go func() { <-conn.cPing }()
}
go conn.runLoop()
conn.dispatch(&Line{Cmd: INIT})
}
// copied from http.client for great justice
@ -235,7 +236,7 @@ func (conn *Conn) ping() {
for {
select {
case <-tick.C:
conn.Raw(fmt.Sprintf("PING :%d", time.Now().UnixNano()))
conn.Ping(fmt.Sprintf("%d", time.Now().UnixNano()))
case <-conn.cPing:
tick.Stop()
return
@ -305,7 +306,7 @@ func (conn *Conn) shutdown() {
// as calling sock.Close() will cause recv() to recieve EOF in readstring()
if conn.Connected {
logging.Info("irc.shutdown(): Disconnected from server.")
conn.dispatch(&Line{Cmd: "disconnected"})
conn.dispatch(&Line{Cmd: DISCONNECTED})
conn.Connected = false
conn.sock.Close()
conn.cSend <- true

20
client/connection_test.go
View File

@ -3,8 +3,8 @@ package client
import (
"bufio"
"code.google.com/p/gomock/gomock"
"github.com/fluffle/golog/logging"
"github.com/fluffle/goirc/state"
"github.com/fluffle/golog/logging"
"strings"
"testing"
"time"
@ -33,6 +33,10 @@ func setUp(t *testing.T, start ...bool) (*Conn, *testState) {
// Hack to allow tests of send, recv, write etc.
// NOTE: the value of the boolean doesn't matter.
c.postConnect()
// All connections start with NICK/USER expect these.
nc.Expect("NICK test")
nc.Expect("USER test 12 * :Testing IRC")
// Sleep 1ms to allow background routines to start.
<-time.After(1e6)
}
@ -57,7 +61,7 @@ func TestEOF(t *testing.T) {
// Set up a handler to detect whether disconnected handlers are called
dcon := false
c.HandleFunc("disconnected", func (conn *Conn, line *Line) {
c.HandleFunc(DISCONNECTED, func(conn *Conn, line *Line) {
dcon = true
})
@ -356,12 +360,12 @@ func TestRunLoop(t *testing.T) {
// Set up a handler to detect whether 001 handler is called
h001 := false
c.HandleFunc("001", func (conn *Conn, line *Line) {
c.HandleFunc("001", func(conn *Conn, line *Line) {
h001 = true
})
// Set up a handler to detect whether 002 handler is called
h002 := false
c.HandleFunc("002", func (conn *Conn, line *Line) {
c.HandleFunc("002", func(conn *Conn, line *Line) {
h002 = true
})
@ -470,7 +474,7 @@ func TestRateLimit(t *testing.T) {
// We'll be needing this later...
abs := func(i time.Duration) time.Duration {
if (i < 0) {
if i < 0 {
return -i
}
return i
@ -491,13 +495,13 @@ func TestRateLimit(t *testing.T) {
// 2.5 seconds minus the delta between the two ratelimit calls. This should
// be minimal but it's guaranteed that it won't be zero. Use 10us as a fuzz.
if l := c.rateLimit(60); l != 0 ||
abs(c.badness - 2500*time.Millisecond) > 10 * time.Microsecond {
abs(c.badness-2500*time.Millisecond) > 10*time.Microsecond {
t.Errorf("Rate limit calculating badness incorrectly.")
}
// At this point, we can tip over the badness scale, with a bit of help.
// 720 chars => +8 seconds of badness => 10.5 seconds => ratelimit
if l := c.rateLimit(720); l != 8 * time.Second ||
abs(c.badness - 10500*time.Millisecond) > 10 * time.Microsecond {
if l := c.rateLimit(720); l != 8*time.Second ||
abs(c.badness-10500*time.Millisecond) > 10*time.Microsecond {
t.Errorf("Rate limit failed to return correct limiting values.")
t.Errorf("l=%d, badness=%d", l, c.badness)
}

4
client/dispatch.go
View File

@ -105,7 +105,9 @@ func (hs *hSet) dispatch(conn *Conn, line *Line) {
defer hs.RUnlock()
ev := strings.ToLower(line.Cmd)
list, ok := hs.set[ev]
if !ok { return }
if !ok {
return
}
for hn := list.start; hn != nil; hn = hn.next {
go hn.Handle(conn, line)
}

16
client/dispatch_test.go
View File

@ -83,7 +83,7 @@ func TestHandlerSet(t *testing.T) {
if callcount != 0 {
t.Errorf("Something incremented call count before we were expecting it.")
}
hs.dispatch(nil, &Line{Cmd:"One"})
hs.dispatch(nil, &Line{Cmd: "One"})
<-time.After(time.Millisecond)
if callcount != 4 {
t.Errorf("Our handler wasn't called four times :-(")
@ -107,7 +107,7 @@ func TestHandlerSet(t *testing.T) {
}
// Dispatch should result in 3 additions.
hs.dispatch(nil, &Line{Cmd:"One"})
hs.dispatch(nil, &Line{Cmd: "One"})
<-time.After(time.Millisecond)
if callcount != 7 {
t.Errorf("Our handler wasn't called three times :-(")
@ -129,7 +129,7 @@ func TestHandlerSet(t *testing.T) {
}
// Dispatch should result in 2 additions.
hs.dispatch(nil, &Line{Cmd:"One"})
hs.dispatch(nil, &Line{Cmd: "One"})
<-time.After(time.Millisecond)
if callcount != 9 {
t.Errorf("Our handler wasn't called two times :-(")
@ -151,7 +151,7 @@ func TestHandlerSet(t *testing.T) {
}
// Dispatch should result in 1 addition.
hs.dispatch(nil, &Line{Cmd:"One"})
hs.dispatch(nil, &Line{Cmd: "One"})
<-time.After(time.Millisecond)
if callcount != 10 {
t.Errorf("Our handler wasn't called once :-(")
@ -170,7 +170,7 @@ func TestHandlerSet(t *testing.T) {
}
// Dispatch should result in NO additions.
hs.dispatch(nil, &Line{Cmd:"One"})
hs.dispatch(nil, &Line{Cmd: "One"})
<-time.After(time.Millisecond)
if callcount != 10 {
t.Errorf("Our handler was called?")
@ -208,7 +208,7 @@ func TestCommandSet(t *testing.T) {
if c, l := cs.match("one"); c.(*cNode) != cn1 || l != 3 {
t.Errorf("Didn't match 'one' when we should have.")
}
if c, l := cs.match ("one two three"); c.(*cNode) != cn2 || l != 7 {
if c, l := cs.match("one two three"); c.(*cNode) != cn2 || l != 7 {
t.Errorf("Didn't match 'one two' when we should have.")
}
@ -216,14 +216,14 @@ func TestCommandSet(t *testing.T) {
if _, ok := cs.set["one two"]; ok || cn2.set != nil {
t.Errorf("Command 'one two' not removed correctly.")
}
if c, l := cs.match ("one two three"); c.(*cNode) != cn1 || l != 3 {
if c, l := cs.match("one two three"); c.(*cNode) != cn1 || l != 3 {
t.Errorf("Didn't match 'one' when we should have.")
}
cn1.Remove()
if _, ok := cs.set["one"]; ok || cn1.set != nil {
t.Errorf("Command 'one' not removed correctly.")
}
if c, l := cs.match ("one two three"); c != nil || l != 0 {
if c, l := cs.match("one two three"); c != nil || l != 0 {
t.Errorf("Matched 'one' when we shouldn't have.")
}
}

32
client/handlers.go
View File

@ -9,11 +9,12 @@ import (
// sets up the internal event handlers to do essential IRC protocol things
var intHandlers = map[string]HandlerFunc{
INIT: (*Conn).h_init,
"001": (*Conn).h_001,
"433": (*Conn).h_433,
"CTCP": (*Conn).h_CTCP,
"NICK": (*Conn).h_NICK,
"PING": (*Conn).h_PING,
CTCP: (*Conn).h_CTCP,
NICK: (*Conn).h_NICK,
PING: (*Conn).h_PING,
}
func (conn *Conn) addIntHandlers() {
@ -24,15 +25,24 @@ func (conn *Conn) addIntHandlers() {
}
}
// Password/User/Nick broadcast on connection.
func (conn *Conn) h_init(line *Line) {
if conn.password != "" {
conn.Pass(conn.password)
}
conn.Nick(conn.Me.Nick)
conn.User(conn.Me.Ident, conn.Me.Name)
}
// Basic ping/pong handler
func (conn *Conn) h_PING(line *Line) {
conn.Raw("PONG :" + line.Args[0])
conn.Pong(line.Args[0])
}
// Handler to trigger a "CONNECTED" event on receipt of numeric 001
func (conn *Conn) h_001(line *Line) {
// we're connected!
conn.dispatch(&Line{Cmd: "connected"})
conn.dispatch(&Line{Cmd: CONNECTED})
// and we're being given our hostname (from the server's perspective)
t := line.Args[len(line.Args)-1]
if idx := strings.LastIndex(t, " "); idx != -1 {
@ -70,10 +80,10 @@ func (conn *Conn) h_433(line *Line) {
// Handle VERSION requests and CTCP PING
func (conn *Conn) h_CTCP(line *Line) {
if line.Args[0] == "VERSION" {
conn.CtcpReply(line.Nick, "VERSION", "powered by goirc...")
} else if line.Args[0] == "PING" {
conn.CtcpReply(line.Nick, "PING", line.Args[2])
if line.Args[0] == VERSION {
conn.CtcpReply(line.Nick, VERSION, "powered by goirc...")
} else if line.Args[0] == PING {
conn.CtcpReply(line.Nick, PING, line.Args[2])
}
}
@ -99,7 +109,9 @@ func (conn *Conn) h_PRIVMSG(line *Line) {
}
}
cmd, l := conn.cmdMatch(txt)
if cmd == nil { return }
if cmd == nil {
return
}
if conn.CommandStripPrefix {
txt = strings.TrimSpace(txt[l:])
}

8
client/handlers_test.go
View File

@ -27,7 +27,7 @@ func Test001(t *testing.T) {
l := parseLine(":irc.server.org 001 test :Welcome to IRC test!ident@somehost.com")
// Set up a handler to detect whether connected handler is called from 001
hcon := false
c.HandleFunc("connected", func (conn *Conn, line *Line) {
c.HandleFunc(CONNECTED, func(conn *Conn, line *Line) {
hcon = true
})
@ -139,11 +139,11 @@ func TestCTCP(t *testing.T) {
c.h_CTCP(parseLine(":blah!moo@cows.com PRIVMSG test :\001UNKNOWN ctcp\001"))
}
func TestPRIVMSG(t *testing.T){
func TestPRIVMSG(t *testing.T) {
c, s := setUp(t)
defer s.tearDown()
f := func (conn *Conn, line *Line) {
f := func(conn *Conn, line *Line) {
conn.Privmsg(line.Args[0], line.Args[1])
}
c.CommandFunc("prefix", f, "")
@ -188,7 +188,6 @@ func TestPRIVMSG(t *testing.T){
c.h_PRIVMSG(parseLine(":blah!moo@cows.com PRIVMSG #foo :test! prefix bar"))
s.nc.ExpectNothing()
}
// Test the handler for JOIN messages
@ -317,7 +316,6 @@ func TestMODE(t *testing.T) {
t.Errorf("Channel.ParseModes() not called correctly.")
}
// Send a nick mode line, returning Me
gomock.InOrder(
s.st.EXPECT().GetChannel("test").Return(nil),

10
client/line.go
View File

@ -62,7 +62,7 @@ func parseLine(s string) *Line {
// So, I think CTCP and (in particular) CTCP ACTION are better handled as
// separate events as opposed to forcing people to have gargantuan
// handlers to cope with the possibilities.
if (line.Cmd == "PRIVMSG" || line.Cmd == "NOTICE") &&
if (line.Cmd == PRIVMSG || line.Cmd == NOTICE) &&
len(line.Args[1]) > 2 &&
strings.HasPrefix(line.Args[1], "\001") &&
strings.HasSuffix(line.Args[1], "\001") {
@ -72,16 +72,16 @@ func parseLine(s string) *Line {
// Replace the line with the unwrapped CTCP
line.Args[1] = t[1]
}
if c := strings.ToUpper(t[0]); c == "ACTION" && line.Cmd == "PRIVMSG" {
if c := strings.ToUpper(t[0]); c == ACTION && line.Cmd == PRIVMSG {
// make a CTCP ACTION it's own event a-la PRIVMSG
line.Cmd = c
} else {
// otherwise, dispatch a generic CTCP/CTCPREPLY event that
// contains the type of CTCP in line.Args[0]
if line.Cmd == "PRIVMSG" {
line.Cmd = "CTCP"
if line.Cmd == PRIVMSG {
line.Cmd = CTCP
} else {
line.Cmd = "CTCPREPLY"
line.Cmd = CTCPREPLY
}
line.Args = append([]string{c}, line.Args...)
}