5 if {![info exists nick]} { set nick Blight }
6 if {![info exists ownfullname]} { set ownfullname "here to Help" }
7 set ownmailaddr blight@chiark.greenend.org.uk
9 if {![info exists globalsecret]} {
10 set gsfile [open /dev/urandom r]
11 fconfigure $gsfile -translation binary
12 set globalsecret [read $gsfile 32]
13 binary scan $globalsecret H* globalsecret
18 proc try_except_finally {try except finally} {
19 global errorInfo errorCode
20 set er [catch { uplevel 1 $try } emsg]
24 if {[catch { uplevel 1 $except } emsg3]} {
25 append ei "\nALSO ERROR HANDLING ERROR:\n$emsg3"
28 set er2 [catch { uplevel 1 $finally } emsg2]
31 append ei "\nALSO ERROR CLEANING UP:\n$emsg2"
33 return -code $er -errorinfo $ei -errorcode $ec $emsg
35 return -code $er2 -errorinfo $errorInfo -errorcode $errorCode $emsg2
41 proc sendout {command args} {
43 if {[llength $args]} {
44 set la [lindex $args end]
45 set args [lreplace $args end end]
47 if {[regexp {[: ]} $i]} {
48 error "bad argument in output $i ($command $args)"
53 set args [lreplace $args 0 -1 $command]
54 set string [join $args { }]
55 puts "[clock seconds] -> $string"
63 proc logerror {data} {
68 global saveei saveec errorInfo errorCode
73 puts ">$saveec|$saveei<"
83 global sock nick calling_nick
85 if {[gets $sock line] == -1} { set terminate 1; return }
86 regsub -all "\[^ -\176\240-\376\]" $line ? line
88 if {[regexp -nocase {^:([^ ]+) (.*)} $line dummy prefix remain]} {
90 if {[regexp {^([^!]+)!} $prefix dummy maybenick] &&
91 "[irctolower $maybenick]" == "[irctolower $nick]"} return
92 set calling_nick $maybenick
95 catch { unset calling_nick }
97 if {![string length $line]} { return }
98 if {![regexp -nocase {^([0-9a-z]+) *(.*)} $line dummy command line]} {
99 log "bad command: $org"
102 set command [string toupper $command]
104 while {[regexp {^([^ :]+) *(.*)} $line dummy thisword line]} {
105 lappend params $thisword
107 if {[regexp {^:(.*)} $line dummy thisword]} {
108 lappend params $thisword
109 } elseif {[string length $line]} {
110 log "junk at end: $org"
113 if {"$command" == "PRIVMSG" &&
114 [regexp {^[&#+!]} [lindex $params 0]] &&
115 ![regexp {^!} [lindex $params 1]]} {
116 # on-channel message, ignore
118 recordlastseen_p $prefix "talking on [lindex $params 0]" 1
122 log "[clock seconds] <- $org"
123 set procname msg_$command
124 if {[catch { info body $procname }]} { return }
126 eval [list $procname $prefix $command] $params
128 logerror "error: $emsg ($prefix $command $params)"
133 proc sendprivmsg {dest l} {
134 sendout [expr {[ischan $dest] ? "PRIVMSG" : "NOTICE"}] $dest $l
136 proc sendaction {dest what} { sendout PRIVMSG $dest "\001ACTION $what\001" }
137 proc msendprivmsg {dest ll} { foreach l $ll { sendprivmsg $dest $l } }
138 proc msendprivmsg_delayed {delay dest ll} { after $delay [list msendprivmsg $dest $ll] }
140 proc prefix_none {} {
142 if {[string length $p]} { error "prefix specified" }
145 proc msg_PING {p c s1} {
150 proc check_nick {n} {
151 if {[regexp -nocase {[^][\\`_^{|}a-z0-9-]} $n]} { error "bad char in nick" }
152 if {[regexp {^[-0-9]} $n]} { error "bad nick start" }
156 return [regexp {^[&#+!]} $dest]
159 proc irctolower {v} {
160 foreach {from to} [list "\\\[" "{" \
164 regsub -all $from $v $to v
166 return [string tolower $v]
169 proc prefix_nick {} {
173 if {![regexp {^([^!]+)!} $p dummy n]} { error "not from nick" }
175 if {"[irctolower $n]" == "[irctolower $nick]"} {
176 error "from myself" {} {}
180 proc showintervalsecs {howlong} {
181 return [showintervalsecs/[opt timeformat] $howlong]
184 proc showintervalsecs/ks {howlong} {
185 if {$howlong < 1000} {
188 if {$howlong < 1000000} {
195 set value [expr "$howlong.0 / $scale"]
196 foreach {min format} {100 %.0f 10 %.1f 1 %.2f} {
197 if {$value < $min} continue
198 return [format "$format${pfx}s" $value]
203 proc format_qty {qty unit} {
207 if {$qty != 1} { append o s }
211 proc showintervalsecs/hms {qty} {
212 set ul {second 60 minute 60 hour 24 day 7 week}
214 while {[llength $ul] > 1 && $qty >= [set uv [lindex $ul 1]]} {
215 set remainu [lindex $ul 0]
216 set remainv [expr {$qty % $uv}]
217 set qty [expr {($qty-$remainv)/$uv}]
218 set ul [lreplace $ul 0 1]
220 set o [format_qty $qty [lindex $ul 0]]
223 append o [format_qty $remainv $remainu]
228 proc showinterval {howlong} {
232 return "[showintervalsecs $howlong] ago"
236 proc showtime {when} {
237 return [showinterval [expr {[clock seconds] - $when}]]
240 proc def_msgproc {name argl body} {
241 proc msg_$name "varbase $argl" "\
242 upvar #0 msg/\$varbase/dest d\n\
243 upvar #0 msg/\$varbase/str s\n\
244 upvar #0 msg/\$varbase/accum a\n\
248 def_msgproc begin {dest str} {
254 def_msgproc append {str} {
256 if {[string length $s] && [string length $ns] > 65} {
257 msg__sendout $varbase
258 set s " [string trimleft $str]"
264 def_msgproc finish {} {
265 msg__sendout $varbase
271 def_msgproc _sendout {} {
272 lappend a [string trimright $s]
276 proc looking_whenwhere {when where} {
277 set str [showtime [expr {$when-1}]]
278 if {[string length $where]} { append str " on $where" }
282 proc recordlastseen_n {n how here} {
283 global lastseen lookedfor
284 set lastseen([irctolower $n]) [list $n [clock seconds] $how]
286 upvar #0 lookedfor([irctolower $n]) lf
287 if {[info exists lf]} {
288 switch -exact [llength $lf] {
293 manyset [lindex $lf 0] when who where
295 "FYI, $who was looking for you [looking_whenwhere $when $where]."]
298 msg_begin tosend $n "FYI, people have been looking for you:"
304 msg_append tosend " "
305 } elseif {$i == [llength $lf]} {
306 msg_append tosend " and "
309 msg_append tosend ", "
311 manyset $e when who where
313 "$who ([looking_whenwhere $when $where])$fin"
315 set ml [msg_finish tosend]
319 msendprivmsg_delayed 1000 $n $ml
323 proc recordlastseen_p {p how here} {
325 recordlastseen_n $n $how $here
328 proc chanmode_arg {} {
330 set rv [lindex $cm_args 0]
331 set cm_args [lreplace cm_args 0 0]
335 proc chanmode_o1 {m g p chan} {
338 set who [chanmode_arg]
339 recordlastseen_n $n "being nice to $who" 1
340 if {"[irctolower $who]" == "[irctolower $nick]"} {
341 sendprivmsg $n Thanks.
345 proc chanmode_o0 {m g p chan} {
348 set who [chanmode_arg]
349 recordlastseen_p $p "being mean to $who" 1
350 if {"[irctolower $who]" == "[irctolower $nick]"} {
351 set chandeop($chan) [list [clock seconds] $p]
355 proc msg_MODE {p c dest modelist args} {
356 if {![ischan $dest]} return
357 if {[regexp {^\-(.+)$} $modelist dummy modelist]} {
359 } elseif {[regexp {^\+(.+)$} $modelist dummy modelist]} {
362 error "invalid modelist"
364 foreach m [split $modelist] {
365 set procname chanmode_$m$give
366 if {[catch { info body $procname }]} {
367 recordlastseen_p $p "fiddling with $dest" 1
369 $procname $m $give $p $dest
374 proc process_kickpart {chan user} {
376 if {![ischan $chan]} { error "not a channel" }
378 upvar #0 nick_onchans($user) oc
379 set lc [irctolower $chan]
380 set oc [grep tc {"$tc" != "$lc"} $oc]
381 if {![llength $oc]} { nick_forget $user }
384 proc msg_KICK {p c chans users comment} {
385 set chans [split $chans ,]
386 set users [split $users ,]
387 if {[llength $chans] > 1} {
388 foreach chan $chans user $users { process_kickpart $chan $user }
390 foreach user $users { process_kickpart [lindex $chans 0] $user }
394 proc msg_KILL {p c user why} {
398 set nick_arys {onchans username}
400 proc nick_forget {n} {
402 foreach ary $nick_arys {
403 upvar #0 nick_${ary}($n) av
408 proc msg_NICK {p c newnick} {
411 recordlastseen_n $n "changing nicks to $newnick" 0
412 recordlastseen_n $newnick "changing nicks from $n" 1
413 foreach ary $nick_arys {
414 upvar #0 nick_${ary}($n) old
415 upvar #0 nick_${ary}($newnick) new
416 if {[info exists new]} { error "nick collision ?! $ary $n $newnick" }
417 if {[info exists old]} { set new $old; unset old }
421 proc msg_JOIN {p c chan} {
423 recordlastseen_n $n "joining $chan" 1
424 upvar #0 nick_onchans($n) oc
425 lappend oc [irctolower $chan]
427 proc msg_PART {p c chan} {
429 recordlastseen_n $n "leaving $chan" 1
430 process_kickpart $chan $n
432 proc msg_QUIT {p c why} {
434 recordlastseen_n $n "leaving ($why)" 0
438 proc msg_PRIVMSG {p c dest text} {
440 if {[ischan $dest]} {
441 recordlastseen_n $n "invoking me in $dest" 1
444 recordlastseen_n $n "talking to me" 1
449 regsub {^! *} $text {} text
451 set procname ucmd/[string tolower $ucmd]
452 if {[catch { info body $procname }]} {
453 error "unknown command; try help for help"
457 sendprivmsg $n "error: $rv"
459 manyset $rv priv_msgs pub_msgs priv_acts pub_acts
460 foreach {td val} [list $n $priv_acts $output $pub_acts] {
461 foreach l [split $val "\n"] {
465 foreach {td val} [list $n $priv_msgs $output $pub_msgs] {
466 foreach l [split $val "\n"] {
473 proc msg_INVITE {p c n chan} {
474 after 1000 [list sendout JOIN $chan]
477 proc grep {var predicate list} {
481 if {[uplevel 1 [list expr $predicate]]} { lappend o $v }
486 proc msg_353 {p c dest type chan nicklist} {
487 global names_chans nick_onchans
488 if {![info exists names_chans]} { set names_chans {} }
489 set chan [irctolower $chan]
490 lappend names_chans $chan
491 foreach n [array names nick_onchans] {
492 upvar #0 nick_onchans($n) oc
493 set oc [grep tc {"$tc" != "$chan"} $oc]
495 foreach n [split $nicklist { }] {
496 regsub {^[@+]} $n {} n
498 if {![string length $n]} continue
499 upvar #0 nick_onchans($n) oc
504 proc msg_366 {p c args} {
505 global names_chans nick_onchans
506 if {[llength names_chans] > 1} {
507 foreach n [array names nick_onchans] {
508 upvar #0 nick_onchans($n) oc
509 set oc [grep tc {[lsearch -exact $tc $names_chans] >= 0} $oc]
510 if {![llength $oc]} { nick_forget $n }
518 return [expr {!![string length $text]}]
523 if {[string length $text]} { error "too many parameters" }
528 if {![regexp {^([^ ]+) *(.*)} $text dummy firstword text]} {
529 error "too few parameters"
541 proc def_ucmd {cmdname body} {
542 proc ucmd/$cmdname {p dest} " upvar 1 text text\n$body"
545 proc ucmdr {priv pub args} {
546 return -code return [concat [list $priv $pub] $args]
552 catch { unset help_topics }
553 set f [open helpinfos r]
556 while {[gets $f l] >= 0} {
558 if {[regexp {^#.*} $l]} {
559 } elseif {[regexp {^ *$} $l]} {
560 if {[info exists topic]} {
561 set help_topics($topic) [join $lines "\n"]
565 } elseif {[regexp {^!([-+._0-9a-z]*)$} $l dummy newtopic]} {
566 if {[info exists topic]} {
567 error "help $newtopic while in $topic"
571 } elseif {[regexp {^[^!#]} $l]} {
573 lappend lines [string trimright $l]
575 error "eh ? $lno: $l"
578 if {[info exists topic]} { error "unfinished topic $topic" }
585 upvar #0 help_topics([irctolower [string trim $text]]) info
586 if {![info exists info]} { ucmdr "No help on $text, sorry." {} }
592 ucmdr $help_topics() {}
595 proc manyset {list args} {
596 foreach val $list var $args {
602 proc check_username {target} {
604 [string length $target] > 8 ||
605 [regexp {[^-0-9a-z]} $target] ||
606 ![regexp {^[a-z]} $target]
607 } { error "invalid username" }
610 proc nickdb__head {} {
612 set nl [irctolower $n]
613 upvar #0 nickdb($nl) ndbe
614 binary scan $nl H* nh
616 if {![info exists ndbe] && [file exists $nfn]} {
618 try_except_finally { set newval [read $f] } {} { close $f }
619 if {[llength $newval] % 2} { error "invalid length" }
625 proc def_nickdb {name arglist body} {
626 proc nickdb_$name $arglist "nickdb__head; $body"
629 def_nickdb exists {n} {
630 return [info exists ndbe]
633 def_nickdb delete {n} {
638 set default_settings {timeformat ks}
640 def_nickdb set {n args} {
641 global default_settings
642 if {![info exists ndbe]} { set ndbe $default_settings }
643 foreach {key value} [concat $ndbe $args] { set a($key) $value }
645 foreach {key value} [array get a] { lappend newval $key $value }
646 set f [open $nfn.new w]
650 file rename -force $nfn.new $nfn
660 if {[info exists calling_nick]} { set n $calling_nick } { set n {} }
661 return [nickdb_opt $n $key]
664 def_nickdb opt {n key} {
665 global default_settings
666 if {[info exists ndbe]} {
669 set l $default_settings
671 foreach {tkey value} $l {
672 if {"$tkey" == "$key"} { return $value }
674 error "unset setting $key"
677 proc check_notonchan {} {
679 if {[ischan $dest]} { error "that command must be sent privately" }
682 proc nick_securitycheck {strict} {
684 if {![nickdb_exists $n]} { error "you are unknown to me, use `register'." }
685 set wantu [nickdb_opt $n username]
686 if {![string length $wantu]} {
688 error "that feature is only available to secure users, sorry."
693 upvar #0 nick_username($n) nu
694 if {![info exists nu]} {
695 error "nick $n is secure, you must identify yourself first."
697 if {"$wantu" != "$nu"} {
698 error "you are the wrong user - the nick $n belongs to $wantu, not $nu"
705 set old [nickdb_exists $n]
706 if {$old} { nick_securitycheck 0 }
707 switch -exact [string tolower [string trim $text]] {
709 upvar #0 nick_username($n) nu
710 if {![info exists nu]} {
712 "You must identify yourself before using `register'. See `help identify'."
714 nickdb_set $n username $nu
715 ucmdr {} {} "makes a note of your username." {}
719 ucmdr {} {} "forgets your nickname." {}
722 nickdb_set $n username {}
724 ucmdr {} "Security is now disabled for your nickname !"
726 ucmdr {} "This is fine, but bear in mind that people will be able to mess with your settings. Channel management features need a secure registration." "makes an insecure registration for your nick."
732 proc timeformat_desc {tf} {
734 ks { return "Times will be displayed in kiloseconds or seconds." }
735 hms { return "Times will be displayed in hours, minutes, etc." }
736 default { error "invalid timeformat: $v" }
740 proc def_setting {opt show_body set_body} {
741 proc set_show/$opt {} "
745 if {![string length $set_body]} return
746 proc set_set/$opt {} "
753 def_setting timeformat {
754 set tf [nickdb_opt $n timeformat]
755 return "$tf: [timeformat_desc $tf]"
757 set tf [string tolower [ta_word]]
759 set desc [timeformat_desc $tf]
760 nickdb_set $n timeformat $tf
764 def_setting security {
765 set s [nickdb_opt $n username]
766 if {[string length $s]} {
767 return "Your nick, $n, is controlled by the user $s."
769 return "Your nick, $n, is not secure."
776 if {![nickdb_exists $n]} {
777 ucmdr {} "You are unknown to me and so have no settings. (Use `register'.)"
781 foreach proc [lsort [info procs]] {
782 if {![regexp {^set_show/(.*)$} $proc dummy opt]} continue
783 lappend ol [format "%-10s %s" $opt [set_show/$opt]]
785 ucmdr {} [join $ol "\n"]
788 if {[catch { info body set_show/$opt }]} {
789 error "no setting $opt"
792 ucmdr {} "$opt [set_show/$opt]"
794 if {[catch { info body set_set/$opt }]} {
795 error "setting $opt cannot be set with `set'"
803 set username [ta_word]
804 set passmd5 [md5sum "[ta_word]\n"]
808 upvar #0 nick_onchans($n) onchans
809 if {![info exists onchans] || ![llength $onchans]} {
810 ucmdr "You must be on a channel with me to identify yourself." {}
812 check_username $username
813 exec userv --timeout 3 $username << "$passmd5\n" > /dev/null \
815 upvar #0 nick_username($n) rec_username
816 set rec_username $username
817 ucmdr "Pleased to see you, $username." {}
823 check_username $target
826 upvar #0 lastsummon($target) ls
827 set now [clock seconds]
828 if {[info exists ls]} {
829 set interval [expr {$now - $ls}]
830 if {$interval < 30} {
832 "Please be patient; $target was summoned only [showinterval $interval]."
835 regsub {^[^!]*!} $p {} path
837 exec userv --timeout 3 $target irc-summon $n $path \
838 [expr {[ischan $dest] ? "$dest" : ""}] \
841 regsub -all "\n" $rv { / } rv
844 if {[regexp {^problem (.*)} $rv dummy problem]} {
845 ucmdr {} "The user `$target' $problem."
846 } elseif {[regexp {^ok ([^ ]+) ([0-9]+)$} $rv dummy tty idlesince]} {
847 set idletime [expr {$now - $idlesince}]
849 ucmdr {} {} {} "invites $target ($tty[expr {
850 $idletime > 10 ? ", idle for [showintervalsecs $idletime]" : ""
852 [ischan $dest] ? "join us here" : "talk to you"
855 error "unexpected response from userv service: $rv"
859 proc md5sum {value} { exec md5sum << $value }
865 set nlower [irctolower $ncase]
867 set now [clock seconds]
868 if {"$nlower" == "[irctolower $nick]"} {
869 error "I am not self-aware."
870 } elseif {![info exists lastseen($nlower)]} {
871 set rstr "I've never seen $ncase."
873 manyset $lastseen($nlower) realnick time what
874 set howlong [expr {$now - $time}]
875 set string [showinterval $howlong]
876 set rstr "I last saw $realnick $string, $what."
878 if {[ischan $dest]} {
883 upvar #0 lookedfor($nlower) lf
884 if {[info exists lf]} { set oldvalue $lf } else { set oldvalue {} }
885 set lf [list [list $now $n $where]]
886 foreach v $oldvalue {
887 if {"[irctolower [lindex $v 1]]" == "[irctolower $n]"} continue
893 if {![info exists sock]} {
894 set sock [socket $host $port]
895 fconfigure $sock -buffering line
896 #fconfigure $sock -translation binary
897 fconfigure $sock -translation crlf
899 sendout USER blight 0 * $ownfullname
901 fileevent $sock readable onread
906 #if {![regexp {tclsh} $argv0]} {