/
irc.go
157 lines (134 loc) · 3.47 KB
/
irc.go
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package main
import (
"fmt"
"github.com/Sirupsen/logrus"
irc "github.com/fluffle/goirc/client"
"regexp"
"strings"
)
const (
NickRegexp = `(?i)[a-z;\[\]\\` + "`" + `_^{}|][a-z0-9;\[\]\\` + "`" + `_^{}|-]*`
)
type CommandHandlerFunc func(*irc.Conn, *Cmd)
type Cmd struct {
Command string
Args []string
*Privmsg
}
type CommandHandler struct {
command string
handlerFunc CommandHandlerFunc
}
func NewCommandHandler(command string, handler CommandHandlerFunc) *CommandHandler {
log.WithFields(logrus.Fields{
"command": command,
}).Debug("Registering new irc command")
return &CommandHandler{
command: command,
handlerFunc: handler,
}
}
func (h CommandHandler) Handle(c *irc.Conn, line *irc.Line) {
msg := parsePrivmsg(line)
if msg.Public() {
h.command = fmt.Sprintf("!%s", h.command)
}
if strings.HasPrefix(msg.Text, h.command) {
log.WithFields(logrus.Fields{
"nick": msg.Nick,
"channel": msg.Channel,
"text": msg.Text,
"command": h.command,
}).Debug("Executing irc command")
h.handlerFunc(c, &Cmd{
Command: h.command,
Args: strings.Split(msg.Text, " ")[1:],
Privmsg: msg})
}
}
type MatchHandlerFunc func(*irc.Conn, *Privmsg, []string)
type MatchHandler struct {
matcher *regexp.Regexp
handlerFunc MatchHandlerFunc
}
func NewMatchHandler(matcher *regexp.Regexp, handler MatchHandlerFunc) *MatchHandler {
log.WithFields(logrus.Fields{
"matcher": matcher,
}).Debug("Registering new irc regex matcher")
return &MatchHandler{
matcher: matcher,
handlerFunc: handler,
}
}
func (h *MatchHandler) Handle(c *irc.Conn, line *irc.Line) {
msg := parsePrivmsg(line)
matches := h.matcher.FindStringSubmatch(msg.Text)
if matches == nil {
return
}
log.WithFields(logrus.Fields{
"nick": msg.Nick,
"channel": msg.Channel,
"text": msg.Text,
"matcher": h.matcher,
"matches": matches,
}).Debug("Executing irc regex matcher")
h.handlerFunc(c, msg, matches)
}
type MatchAllHandlerFunc func(*irc.Conn, *Privmsg, [][]string)
type MatchAllHandler struct {
matcher *regexp.Regexp
handlerFunc MatchAllHandlerFunc
}
func NewMatchAllHandler(matcher *regexp.Regexp, handler MatchAllHandlerFunc) *MatchAllHandler {
log.WithFields(logrus.Fields{
"matcher": matcher,
}).Debug("Registering new irc regex all matcher")
return &MatchAllHandler{
matcher: matcher,
handlerFunc: handler,
}
}
func (h *MatchAllHandler) Handle(c *irc.Conn, line *irc.Line) {
msg := parsePrivmsg(line)
matches := h.matcher.FindAllStringSubmatch(msg.Text, -1)
if matches == nil {
return
}
log.WithFields(logrus.Fields{
"nick": msg.Nick,
"channel": msg.Channel,
"text": msg.Text,
"matcher": h.matcher,
"matches": matches,
}).Debug("Executing irc regex all matcher")
h.handlerFunc(c, msg, matches)
}
type Privmsg struct {
Channel, Text string
*irc.Line
}
func parsePrivmsg(line *irc.Line) *Privmsg {
return &Privmsg{
line.Args[0], // Channel
line.Args[1], // Text
line,
}
}
func (m *Privmsg) respond(includeToNick bool, conn *irc.Conn, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if m.Public() {
if includeToNick {
msg = fmt.Sprintf("%s: %s", m.Nick, msg)
}
conn.Privmsg(m.Channel, msg)
} else {
conn.Privmsg(m.Nick, msg)
}
}
func (m *Privmsg) Respond(conn *irc.Conn, format string, args ...interface{}) {
m.respond(false, conn, format, args...)
}
func (m *Privmsg) RespondToNick(conn *irc.Conn, format string, args ...interface{}) {
m.respond(true, conn, format, args...)
}