func (ei *EndpointIRC) message(c *irc.Conn, l *irc.Line) {
var messageTarget MessageTarget
if l.Public() {
messageTarget = ei.GetChannel(l.Target())
} else {
messageTarget = ei.GetUser(l.Target())
}
ei.handler(l.Text(), ei.GetUser(l.Nick), l.Target(), messageTarget)
}
func (self *ModManager) run(event string, line *irc.Line) {
self.mut.RLock()
defer self.mut.RUnlock()
for _, mod := range self.modules {
// Module should check if enabled, not handlers
go mod.Handle(module.Event(event), line.Text(), line)
}
}
func (self *Module) handleRegexp(eventMode Event, trigger string, line *irc.Line) {
self.reMut.RLock()
defer self.reMut.RUnlock()
for _, reM := range self.reTriggers[eventMode] {
if reM.trigger.MatchString(trigger) {
go reM.fn(line.Copy())
}
}
}
func (self *Module) handleString(eventMode Event, trigger string, line *irc.Line) {
trigger = strings.ToLower(trigger)
evT := eventTrigger{eventMode, trigger}
self.stMut.RLock()
defer self.stMut.RUnlock()
for _, fn := range self.stTriggers[evT] {
go fn(line.Copy())
}
}
// Implement client.Handler so commandSet can Handle things directly.
func (cs *commandSet) Handle(conn *client.Conn, line *client.Line) {
// This is a dirty hack to treat factoid additions as a special
// case, since they may begin with command string prefixes.
ctx := context(conn, line)
if ctx == nil || util.IsFactoidAddition(line.Text()) {
return
}
if r, ln := cs.match(ctx.Text()); ctx.Addressed && r != nil {
// Cut command off, trim and compress spaces.
ctx.Args[1] = strings.Join(strings.Fields(ctx.Args[1][ln:]), " ")
r.Run(ctx)
}
}
func handle_command(conn *irc.Conn, line *irc.Line, args []string) {
command := args[0][len(RC.CmdPrefix):]
args = args[1:]
st := conn.StateTracker()
authed := RC.Authed[line.Nick]
if line.Nick == RC.Owner && authed {
// Owner-only commands
if command == "mock" {
for _, n := range args {
_, is_on := st.IsOn(RC.Channel, n)
if is_on {
RC.Mocking[n] = true
conn.Privmsg(RC.Channel, "Now mocking "+n)
}
}
} else if command == "unmock" {
for _, n := range args {
if RC.Mocking[n] {
RC.Mocking[n] = false
conn.Privmsg(RC.Channel, "No longer mocking "+n)
}
}
} else if command == "shorten" {
fmt.Println("unimplemented")
} else if command == "snoop" {
fmt.Println("unimplemented")
}
} else if (RC.Ops[line.Nick] || line.Nick == RC.Owner) && authed {
// Ops-level commands
if command == "poop" {
conn.Privmsg(RC.Channel, "poop")
}
} else if command == "identify" && !line.Public() {
fmt.Println("User " + line.Nick + " attempting to auth...")
h := sha256.New()
h.Write([]byte(args[0]))
pwd_hash := hex.EncodeToString(h.Sum(nil))
if (line.Nick == RC.Owner || RC.Ops[line.Nick]) && RC.Password == pwd_hash {
fmt.Println("Auth succeeded for " + line.Nick)
RC.Authed[line.Nick] = true
conn.Privmsg(line.Nick, "You're authenticated now.")
} else {
fmt.Println("WARNING: Auth failed for " + line.Nick + "!")
conn.Privmsg(line.Nick, "You f****d up.")
}
}
}
func (ib *IrcBot) parsePacket(conn *irc.Conn, line *irc.Line) *models.Packet {
result := ib.regex.FindStringSubmatch(line.Text())
if result == nil {
return nil
}
fileName := cleanFileName(result[3])
packet := models.NewPacket(result[1], result[2], fileName, line.Nick, line.Target(), ib.server.Name, line.Time)
//save packet
if packet != nil {
ib.dataService.SavePacket(packet)
}
return packet
}
// Handles triggers if module is enabled and user/chan is allowed. This is mainly
// exported for use by library and should not have to be called by the user
func (self *Module) Handle(eventMode Event, trigger string, line *irc.Line) {
// Filtered by: denyUser, allowUser, denyChan, allowChan
if !self.Enabled() ||
self.InDenyed(line.Nick) ||
// Empty allowUser list => allow all
(self.LenAllowed(UC_User) != 0 && !self.InAllowed(line.Nick)) ||
self.InDenyed(line.Target()) ||
// Empty denyChan list => allow all
(self.LenAllowed(UC_Chan) != 0 && !self.InAllowed(line.Target())) {
return
}
eventMode = Event(strings.ToUpper(string(eventMode)))
go self.handleString(eventMode, trigger, line)
go self.handleRegexp(eventMode, trigger, line)
}
func context(conn *client.Conn, line *client.Line) *Context {
ctx := &Context{conn: conn, Line: line.Copy(), rws: bot.rewriters}
// This is a bit of a dirty hack; context() returns nil to ignore a line.
// TODO(fluffle): Ignores based on masks (or more likely regex).
if ctx.Nick != "" && conf.Ns(ignoreNs).String(strings.ToLower(ctx.Nick)) != "" {
return nil
}
if ctx.Cmd != client.PRIVMSG {
return ctx
}
ctx.Args[1], ctx.Addressed = util.RemovePrefixedNick(
strings.TrimSpace(ctx.Args[1]), ctx.Me())
// If we're being talked to in private, line.Args[0] will contain our Nick.
// We should consider this as "addressing" us, and set Addressed = true
if ctx.Args[0] == ctx.Me() {
ctx.Addressed = true
}
return ctx
}
func transformLine(line *client.Line) *base.Line {
// We want line.Args[1] to contain the (possibly) stripped version of itself
// but modifying the pointer will result in other goroutines seeing the
// change, so we need to copy line for our own edification.
nl := &base.Line{Line: line.Copy()}
if nl.Cmd != "PRIVMSG" {
return nl
}
nl.Args[1], nl.Addressed = util.RemovePrefixedNick(
strings.TrimSpace(line.Args[1]), irc.Me.Nick)
// If we're being talked to in private, line.Args[0] will contain our Nick.
// To ensure the replies go to the right place (without performing this
// check everywhere) test for this and set line.Args[0] == line.Nick.
// We should consider this as "addressing" us too, and set Addressed = true
if nl.Args[0] == irc.Me.Nick {
nl.Args[0] = nl.Nick
nl.Addressed = true
}
return nl
}
// Handle privmsgs
func handle_privmsg(conn *irc.Conn, line *irc.Line) {
text := line.Text()
args := strings.Split(text, " ")
//var url_regex = regexp.MustCompile(`\Ahttps?://([[:alnum:]][a-zA-Z0-9-]{1,61}[[:alnum:]]\.?){2,3}((%[0-9A-Fa-f]{2}|[-_.!~*';/?#:@&=+$,A-Za-z0-9])+)?\z`)
var url_regex = regexp.MustCompile(`\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))`)
// handle a prefixed command
if strings.Index(text, RC.CmdPrefix) == 0 {
handle_command(conn, line, args)
} else if len(url_regex.FindString(text)) > 0 {
s := GetScanner()
s.Handle(conn, line, text)
}
// Handle mocking
if RC.Mocking[line.Nick] {
SendMessage(conn, "Hey, everybody! "+line.Nick+" said something!", nil)
SendMessage(conn, line.Nick+": "+line.Text(), nil)
SendMessage(conn, "Great job, "+line.Nick+"! ╭(ᐛ)و", nil)
}
}
// Do some standard processing on incoming lines and dispatch a bot_privmsg
func bot_privmsg(irc *client.Conn, line *client.Line) {
bot := getState(irc)
l, p := util.RemovePrefixedNick(strings.TrimSpace(line.Args[1]), irc.Me.Nick)
// We want line.Args[1] to contain the (possibly) stripped version of itself
// but modifying the pointer will result in other goroutines seeing the
// change, so we need to copy line for our own edification.
nl := &base.Line{Line: *line.Copy()}
nl.Args[1] = l
nl.Addressed = p
// If we're being talked to in private, line.Args[0] will contain our Nick.
// To ensure the replies go to the right place (without performing this
// check everywhere) test for this and set line.Args[0] == line.Nick.
// We should consider this as "addressing" us too, and set Addressed = true
if nl.Args[0] == irc.Me.Nick {
nl.Args[0] = nl.Nick
nl.Addressed = true
}
bot.Dispatch("bot_privmsg", nl)
}
func (ib *IrcBot) handleNotice(conn *irc.Conn, line *irc.Line) {
log.Printf("[NOTICE] %v", line.Text())
ib.logToConsole("[NOTICE] " + line.Text())
}
func (ib *IrcBot) log372(conn *irc.Conn, line *irc.Line) {
ib.logToConsole(line.Text())
}
func (plugin *Plugin) OnJoin(conn *client.Conn, line *client.Line) {
logging.Info("vpnbot.Plugin: %v joined %v", line.Src, line.Target())
if lastCheck, ok := plugin.lastCheckNicks[line.Nick]; ok && time.Now().Sub(lastCheck) < 15*time.Minute {
// There is a check in progress or another one has been done earlier
logging.Debug("vpnbot.Plugin: Not checking %v, last check was %v",
line.Nick, humanize.Time(plugin.lastCheckNicks[line.Nick]))
return
}
logging.Debug("vpnbot.Plugin: Checking %v...", line.Nick)
plugin.lastCheckNicks[line.Nick] = time.Now()
// Is this me?
if line.Nick == conn.Me().Nick {
logging.Debug("vpnbot.Plugin: %v is actually me, skipping.", line.Nick)
return
}
// Nickname == Ident? (9 chars cut)
if !strings.HasPrefix(nonWordCharsRegex.ReplaceAllString(line.Nick, ""),
strings.TrimLeft(line.Ident, "~")) {
logging.Debug("vpnbot.Plugin: %v's nick doesn't match the ident, skipping.", line.Nick)
return
}
// Hostname is masked RDNS vhost/IP?
// TODO - Use regex to avoid banning due to similar vhosts
if !maskedAddrRegex.MatchString(line.Host) {
// Detected custom vHost
logging.Debug("vpnbot.Plugin: %v has a custom vhost, skipping.", line.Nick)
return
}
go func() {
botNick := line.Nick
nobotActivityChan := make(chan string)
defer plugin.bot.HandleFunc("privmsg",
func(conn *client.Conn, line *client.Line) {
if line.Nick == botNick {
nobotActivityChan <- "User sent a message"
}
}).Remove()
defer plugin.bot.HandleFunc("noticed",
func(conn *client.Conn, line *client.Line) {
if line.Nick == botNick {
nobotActivityChan <- "User sent a notice"
}
}).Remove()
defer plugin.bot.HandleFunc("part",
func(conn *client.Conn, line *client.Line) {
if line.Nick == botNick {
nobotActivityChan <- "User left"
}
}).Remove()
defer plugin.bot.HandleFunc("part",
func(conn *client.Conn, line *client.Line) {
if line.Nick == botNick {
}
if len(line.Args) > 0 {
switch line.Args[0] {
case "Excess flood":
// If this was an excess flood, consider it spam that should
// be good to ban anyways
nobotActivityChan <- "Excess flood, banning early"
banmask := fmt.Sprintf("%v!%v@%v", "*", "*", line.Host)
// TODO - Ramp up/down the duration with increasing/decreasing activity of the bots
plugin.banGlobal(plugin.generateBan(line.Nick, banmask,
"Instant excess flood", 2*24*time.Hour))
default:
nobotActivityChan <- "User quit normally"
}
}
}).Remove()
// Give nobotActivityChan some time to prove this is not a bot
select {
case reason := <-nobotActivityChan:
logging.Info("vpnbot.Plugin: %v, skipping.", reason)
return
case <-time.After(1 * time.Second):
}
// Get WHOIS info
info, err := plugin.whois.WhoIs(line.Nick)
if err != nil && err != whois.ErrNoSuchNick {
logging.Warn("vpnbot.Plugin: Can't get WHOIS info for %v, skipping: %v",
line.Nick, err.Error())
return
}
// Not an oper?
if info.IsOperator {
logging.Debug("vpnbot.Plugin: %v is operator, skipping.",
line.Nick)
return
}
// Not away
if info.IsAway {
logging.Debug("vpnbot.Plugin: %v is away, skipping.", line.Nick)
return
}
// Realname == Nickname?
if info.Realname != line.Nick {
logging.Debug(
"vpnbot.Plugin: %v's nick doesn't match the realname, skipping.",
line.Nick)
return
}
// Count of channels at least 48
if len(info.Channels) < 48 {
logging.Debug(
"vpnbot.Plugin: %v is not in a high amount of channels, skipping.",
line.Nick)
return
}
// Not halfop, op, aop or owner in any channel
for _, prefix := range info.Channels {
if prefix == '%' || prefix == '@' ||
prefix == '&' || prefix == '~' {
logging.Debug(
"vpnbot.Plugin: %v is opped in a channel, skipping.",
line.Nick)
return
}
}
// Give nobotActivityChan some time to prove this is not a bot
select {
case reason := <-nobotActivityChan:
logging.Info("vpnbot.Plugin: %v, skipping.", reason)
return
case <-time.After(250 * time.Millisecond):
}
// More expensive tests below...
// Make sure we deal with an unregistered client
status := plugin.nickserv.Status(line.Nick)[line.Nick]
if status.Error != nil {
logging.Warn("vpnbot.Plugin: Can't get auth status for %v, skipping: %v",
line.Nick, status.Error)
return
}
if status.Level >= nickserv.Status_IdentifiedViaPassword {
logging.Debug("vpnbot.Plugin: %v is identified, skipping.",
line.Nick)
return
}
// Give nobotActivityChan some time to prove this is not a bot
select {
case reason := <-nobotActivityChan:
logging.Info("vpnbot.Plugin: %v, skipping.", reason)
return
case <-time.After(250 * time.Millisecond):
}
// This is a bot we need to ban!
banmask := fmt.Sprintf("%v!%v@%v", "*", "*", line.Host)
// TODO - Ramp up/down the duration with increasing/decreasing activity of the bots
plugin.banGlobal(plugin.generateBan(line.Nick, banmask,
"Known pattern of ban-evading/logging bot", 2*24*time.Hour))
}()
}