mdw@git.distorted.org.uk Git - ircbot/blob - ledmodule.tcl

   1 # maintains local list of users to userv-slurp config from
   2 # each user provides list of
   3 #    monitors
   4 #    devicesets
   5 #
   6 # a monitor specifies
   7 #    name
   8 #    IRC channel(s)
   9 #    nicks ignore totally
  10 #    nicks ignore presence
  11 #    nicks prefer speech
  12 #    time for `a while ago'
  13 #    time for `very-recently'
  14 # syntax
  15 #    nick ignore|nopresence|prefer <glob-pattern> [...]
  16 #    times <very-recently> <a-while-ago>                  (default 120 450)
  17 #      (affect subsequent `monitor' directives)
  18 #    monitor <monname> <#chan>[,<#chan>...]
  19 #      <monname> must start with <username>:
  20 #
  21 # a deviceset specifies
  22 #    monitor
  23 #    led-group
  24 #    led states
  25 # syntax
  26 #    leds <led-group> <monname> <state>=<value>
  27 # where state is one of
  28 #    [pref]talk[now]  any non-ignored (with `pref', only any preferred)
  29 #                     nick(s) spoke at least somewhat recently
  30 #                     (with `now', only if they spoke very recently)
  31 #    present          at least some non-nopresence nicks present
  32 #    default          always matches
  33 # where the first matching state wins; if none, no LEDs are set
  34
  35 set helpfile ledhelp
  36
  37 source irccore.tcl
  38 source parsecmd.tcl
  39 source stdhelp.tcl
  40 source userv.tcl
  41
  42 defset errchan #$nick
  43 defset retry_after 900000
  44 defset chan_after 1500
  45 defset chans_retry 3600000
  46 defset debug_reset_after 86400000
  47
  48 defset debugusers {}
  49
  50 # variables
  51 #
  52 #   monitor/$monname(chans)           -> [list $chan1 $chan2 ...]
  53 #   monitor/$monname(ignore)          -> [list $regexp ...]
  54 #   monitor/$monname(prefer)          -> [list $regexp ...]
  55 #   monitor/$monname(present-$chan)   -> [list $lnick ...]
  56 #   monitor/$monname(last-talk)       -> $time_t
  57 #   monitor/$monname(last-talkpref)   -> $time_t
  58 #   monitor/$monname(time-recent)     -> $seconds
  59 #   monitor/$monname(time-recentnow)  -> $seconds
  60 #   monitor/$monname(talkchange)      -> [after ...]    or unset
  61 #
  62 #   deviceset/$username:$lno(monname)  -> $monname
  63 #   deviceset/$username:$lno(group)    -> $led_group
  64 #   deviceset/$username:$lno(username) -> $username
  65 #   deviceset/$username:$lno(values)   -> $valuestring
  66 #   deviceset/$username:$lno(states)   -> [list $state1 $value1 $state2 ...]
  67 #   deviceset/$username:$lno(ochan)    -> [open remoteleds ... | r]  or unset
  68 #   deviceset/$username:$lno(ichan)    -> fifo for remoteleds input  or unset
  69 #   deviceset/$username:$lno(retry)    -> [after ... ]             or unset
  70 #
  71 #   onchans($chan)        [list mustleave]                 # in config_chane
  72 #   onchans($chan)        [list idle]
  73 #   onchans($chan)        [list forced]                    # for errchan
  74 #   onchans($chan)        [list shortly [after ...]]       # do a NAMES
  75
  76 proc ldebug {facil m} {
  77     global debugusers
  78     # facil is
  79     #    m$monname
  80     #    d$deviceset
  81     #    c$lchan
  82     #    {}             for system stuff
  83     if {![llength $debugusers]} return
  84     if {[regexp {[md]([^:]+)\:} $facil dummy username] &&
  85         [lsearch -exact $debugusers $username]==-1} return
  86
  87     regsub {^(.)} $facil {\1 } cc
  88     reporterr "DEBUG $cc $m"
  89 }
  90
  91 proc list_objs {vp} {
  92     set l {}
  93     foreach v [info globals] {
  94         if {![regsub ^$vp/ $v {} v]} continue
  95         lappend l $v
  96     }
  97     return $l
  98 }
  99
 100 proc privmsg_unlogged {p ischan params} {
 101     global errorInfo
 102     if {!$ischan} { return 0 }
 103
 104     # on-channel message
 105     if {[catch {
 106         prefix_nick
 107         foreach m [list_objs monitor] {
 108             mon_speech $m [irctolower [lindex $params 0]] [irctolower $n]
 109         }
 110     } emsg]} {
 111         log "processing error: $emsg\n$errorInfo"
 112     }
 113     return 1;
 114 }
 115
 116 proc reporterr {m} {
 117     global errchan
 118     sendprivmsg $errchan $m
 119 }
 120
 121 proc msg_PRIVMSG {p c dest text} {
 122     global errchan
 123     prefix_nick
 124     execute_usercommand $p $c $n $errchan $dest $text
 125 }
 126
 127 proc proc_mon {name argl body} {
 128     proc mon_$name [concat m $argl] "
 129     upvar #0 monitor/\$m mm
 130     $body"
 131 }
 132
 133 proc mon_nick_is {globlist ln} {
 134     foreach gl $globlist {
 135         if {[string match $gl $ln]} { return 1 }
 136     }
 137     return 0
 138 }
 139
 140 proc_mon gotchanlist {ch nll} {
 141     global nick
 142     if {[lsearch -exact $mm(chans) $ch] == -1} return
 143     set l {}
 144     foreach nl $nll {
 145         if {![string compare $nl [irctolower $nick]]} continue
 146         if {[mon_nick_is $mm(nopresence) $nl]} continue
 147         lappend $l $nl
 148     }
 149     set mm(present-$ch) $l
 150     mon_updateall $m
 151 }
 152
 153 proc_mon speech {chan ln} {
 154     if {[lsearch -exact $mm(chans) $chan] == -1} return
 155     if {[mon_nick_is $mm(ignore) $ln]} return
 156     set now [clock seconds]
 157     set mm(last-talk) $now
 158     if {[mon_nick_is $mm(prefer) $ln]} { set mm(last-talkpref) $now }
 159     mon_updateall $m
 160 }
 161
 162 proc_mon calcstate {} {
 163     set s " default "
 164     foreach ch $mm(chans) {
 165         if {[llength $mm(present-$ch)]} { append s "present "; break }
 166     }
 167     set now [clock seconds]
 168     set valid_until [expr {$now + 86400}]
 169     set refresh_later 0
 170     catch { after cancel $mm(talkchange) }
 171     foreach p {{} pref} {
 172         foreach t {{} now} {
 173             set vu [expr {$mm(last-talk$p) + $mm(time-recent$t)}]
 174             if {$vu < $now} continue
 175             append s "${p}talk${t} "
 176             set refresh_later 1
 177             if {$vu < $valid_until} { set valid_until $vu }
 178         }
 179     }
 180     regsub {^ default } $s { } ss
 181     set ds [string trim $ss]
 182     if {$refresh_later} {
 183         set interval [expr {$valid_until - $now + 2}]
 184         set ivms [expr {$interval*1000}]
 185         set mm(talkchange) [after $ivms [list mon_updateall $m]]
 186         ldebug m$m "until now+${interval}: $ds"
 187     } else {
 188         ldebug m$m "indefinitely: $ds"
 189     }
 190     return $s
 191 }
 192
 193 proc_mon updateall {} {
 194     set s [mon_calcstate $m]
 195     foreach d [list_objs deviceset] {
 196         upvar #0 deviceset/$d dd
 197         if {[string compare $m $dd(monname)]} continue
 198         dset_setbystate $d $s
 199     }
 200 }
 201
 202 proc_mon destroy {} {
 203     ldebug m$m "destroying"
 204     catch { after cancel $mm(talkchange) }
 205     catch { unset mm }
 206 }
 207
 208 proc proc_dset {name argl body} {
 209     proc dset_$name [concat d $argl] "
 210     upvar #0 deviceset/\$d dd
 211     if {\[catch {
 212         $body
 213     } emsg\]==1} {
 214         reporterr \"error on \$d: \$emsg\"
 215     }"
 216 }
 217
 218 proc timed_log {m} {
 219     log "[clock seconds] $m"
 220 }
 221
 222 proc_dset setbystate {s} {
 223     foreach {sq v} $dd(states) {
 224         if {![string match *$sq* $s]} continue
 225         set lv $v; break
 226     }
 227     if {![info exists lv]} {
 228         reporterr "no state for $d matching$s"
 229         return
 230     }
 231     ldebug d$d "matches $sq: $v"
 232     timed_log "->$d $lv"
 233     set dd(values) "$sq=$lv"
 234     puts $dd(ichan) $lv
 235 }
 236
 237 proc_dset destroy {} {
 238     ldebug d$d "destroying"
 239     catch { after cancel $dd(retry) }
 240     catch {
 241         if {[info exists dd(ochan)]} { timed_log ">\$$d destroy" }
 242         close $dd(ochan)
 243         close $dd(ichan)
 244     }
 245     catch { unset dd }
 246 }
 247
 248 proc modvar_save_copy {cv defv} {
 249     upvar 1 m m
 250     upvar 1 mm mm
 251     upvar 1 save/$m save
 252     if {[info exists save($cv)]} {
 253         set mm($cv) $save($cv)
 254     } else {
 255         set mm($cv) $defv
 256     }
 257 }
 258
 259 proc reloaduser {username} {
 260     check_username $username
 261     ldebug u$username "reloading"
 262     if {[catch {
 263         set cfg [exec userv --timeout 3 $username irc-ledcontrol-config \
 264                 < /dev/null]
 265     } emsg]} {
 266         regsub "\n" $emsg " // " emsg
 267         reporterr "error reloading $username: $emsg"
 268         return ""
 269     }
 270     foreach d [list_objs deviceset] {
 271         if {![string match $username:* $d]} continue
 272         dset_destroy $d
 273     }
 274     foreach m [list_objs monitor] {
 275         if {![string match $username* $m]} continue
 276         upvar #0 monitor/$m mm
 277         foreach cv [array names mm] { set save/${m}($cv) $mm($cv) }
 278     }
 279     if {![string length $cfg]} {
 280         file delete pwdb/$username
 281         return "no config from $username"
 282     } elseif {[catch {
 283         exec userv --timeout 3 $username irc-ledcontrol-passwords \
 284                 < /dev/null > pwdb/p$username
 285     } emsg]} {
 286         reporterr "error reading passwords for $username: $emsg"
 287         return ""
 288     } elseif {[catch {
 289         ldebug u$username "parsing"
 290         foreach cv {ignore nopresence prefer} { set cc($cv) {} }
 291         set cc(time-recentnow) 120
 292         set cc(time-recent) 450
 293         set lno 0
 294         foreach l [split $cfg "\n"] {
 295             incr lno
 296             set l [string trim $l]
 297             if {[regexp {^\#} $l]} {
 298             } elseif {[regexp {^nick\s+(ignore|nopresence|prefer)\s+(\S.*)$} \
 299                     $l dummy kind globs]} {
 300                 set cc($kind) {}
 301                 foreach gl [split $globs " "] {
 302                     if {![string length $gl]} continue
 303                     string match $gl {}
 304                     lappend cc($kind) $gl
 305                 }
 306             } elseif {[regexp {^times\s+(\d+)\s+(\d+)$} $l dummy r rnow]} {
 307                 foreach cv {{} now} { set cc(time-recent$cv) [set r$cv] }
 308             } elseif {[regexp {^monitor\s+(\S+)\s+(\S.*)$} $l dummy m cl]} {
 309                 set cc(chans) {}
 310                 if {![string match $username:* $m]} {
 311                     error "monname must start with $username:"
 312                 }
 313                 check_monname $m
 314                 foreach ch [split $cl " "] {
 315                     if {![string length $ch]} continue
 316                     check_chan $ch
 317                     if {![ischan $ch]} { error "invalid channel $ch" }
 318                     lappend cc(chans) [irctolower $ch]
 319                     chan_shortly $ch
 320                 }
 321                 upvar #0 monitor/$m mm
 322                 foreach cv [array names cc] { set mm($cv) $cc($cv) }
 323                 foreach cv {{} pref} {
 324                     modvar_save_copy last-talk$cv 0
 325                 }
 326                 foreach cv [array names mm(chans)] {
 327                     modvar_save_copy present-$cv {}
 328                 }
 329                 ldebug m$m "created"
 330             } elseif {[regexp \
 331  {^leds\s+([0-9A-Za-z][-:/0-9A-Za-z]+)\s+(\S+)\s+(\S+.*)$} \
 332                     $l dummy g m states]} {
 333                 set d $username:$lno:$g
 334                 set sl {}
 335                 check_monname $m
 336                 foreach sv [split $states " "] {
 337                     if {![string length $sv]} continue
 338                     if {![regexp \
 339  {^((?:pref)?talk(?:now)?|present|default)\=([0-9a-z][,/+0-9A-Za-z]*)$} \
 340                           $sv dummy lhs rhs]} {
 341                         error "invalid state spec"
 342                     }
 343                     lappend sl $lhs $rhs
 344                 }
 345                 upvar #0 deviceset/$d dd
 346                 set dd(monname) $m
 347                 set dd(states) $sl
 348                 set dd(group) $g
 349                 set dd(values) startup
 350                 set dd(username) $username
 351                 dset_start $d
 352                 ldebug d$d "created"
 353             }
 354         }
 355     } emsg]} {
 356         reporterr "setup error $username:$lno:$emsg"
 357         return ""
 358     } else {
 359         return "reloaded $username"
 360     }
 361 }
 362
 363 proc check_monname {m} {
 364     if {[regexp {[^-_+:.#0-9a-zA-Z]} $m badchar]} {
 365         error "char $badchar not allowed in monnames"
 366     }
 367     if {![regexp {^[0-9a-zA-Z]} $m]} {
 368         error "monname must start with alphanum"
 369     }
 370 }
 371
 372 proc_dset start {} {
 373     catch { unset dd(retry) }
 374     set username $dd(username)
 375     ldebug d$d "starting"
 376     if {[catch {
 377         set cmdl [list remoteleds --pipe $dd(group) \
 378                        --human --passfile-only pwdb/p$username]
 379         timed_log "!-$d [join $cmdl " "]"
 380         lappend cmdl < pwdb/fifo |& cat
 381         catch { file delete pwdb/fifo }
 382         exec mkfifo -m 0600 pwdb/fifo
 383         set ichan [open pwdb/fifo r+]
 384         set ochan [open |$cmdl r]
 385         fconfigure $ichan -blocking 0 -buffering line
 386         fconfigure $ochan -blocking 0 -buffering line
 387         fileevent $ochan readable [list dset_rledout $d]
 388         set dd(ichan) $ichan
 389         set dd(ochan) $ochan
 390     } emsg]} {
 391         reporterr "remoteleds startup $d: $emsg"
 392         catch { close $ichan }
 393         catch { close $ochan }
 394         dset_trylater $d
 395     }
 396 }
 397
 398 proc_dset rledout {} {
 399     global errchan
 400     while {[gets $dd(ochan) l] != -1} {
 401         reporterr "remoteleds on $d: $dd(values): $l"
 402     }
 403     if {[fblocked $dd(ochan)]} return
 404     timed_log ">\$$d failure";
 405     catch { close $dd(ichan) }
 406     catch { close $dd(ochan) }
 407     unset dd(ichan)
 408     unset dd(ochan)
 409     reporterr "remoteleds on $d died"
 410     dset_trylater $d
 411 }
 412
 413 proc_dset trylater {} {
 414     global retry_after
 415     ldebug d$d "will try again later"
 416     set dd(retry) [after $retry_after [list dset_start $d]]
 417 }
 418
 419 proc config_change {} {
 420     global onchans chans_retry errchan config_retry_after
 421     ldebug {} "rechecking configuration etc"
 422     foreach ch [array names onchans] {
 423         manyset $onchans($ch) status after
 424         if {"$status" == "shortly"} {
 425             catch { after cancel $after }
 426         }
 427         set onchans($ch) mustleave
 428     }
 429     sendout JOIN $errchan
 430     chan_shortly $errchan
 431     foreach m [list_objs monitor] {
 432         upvar #0 monitor/$m mm
 433         foreach ch $mm(chans) {
 434             sendout JOIN $ch
 435             chan_shortly $ch
 436         }
 437     }
 438     foreach ch [array names onchans] {
 439         if {"[lindex $onchans($ch) 0]" != "mustleave"} continue
 440         sendout PART $ch
 441         unset onchans($ch)
 442     }
 443     catch { after cancel $config_retry_after }
 444     set config_retry_after [after $chans_retry config_change]
 445 }
 446
 447 proc allchans_shortly {} {
 448     global chan_after onchans shortly_alling
 449     if {[info exists shortly_alling]} {
 450         ldebug {} "global check already pending"
 451         return
 452     }
 453     foreach ch [array names onchans] {
 454         manyset $onchans($ch) status after
 455         if {"$status" != "shortly"} continue
 456         set idle
 457     }
 458     set shortly_alling [after $chan_after allchans_sendnames]
 459 }
 460
 461 proc allchans_sendnames {} {
 462     global shortly_alling
 463     unset shortly_alling
 464     ldebug {} "asking for global namelist"
 465     sendout NAMES
 466 }
 467
 468 proc chan_shortly {ch} {
 469     global chan_after shortly_alling
 470     set ch [irctolower $ch]
 471     if {[info exists shortly_alling]} {
 472         ldebug c$ch "global check already pending"
 473         return
 474     }
 475     upvar #0 onchans($ch) oc
 476     if {[info exists oc]} {
 477         manyset $oc status after
 478         if {"$status" == "shortly"} {
 479             ldebug c$ch "queued check already pending"
 480             return
 481         }
 482     }
 483     ldebug c$ch "queueing check"
 484     set oc [list shortly [after $chan_after chan_sendnames $ch]]
 485 }
 486
 487 proc msg_353 {p c dest type chan nicklist} {
 488     set lchan [irctolower $chan]
 489     set nll [irctolower $nicklist]
 490     regsub -all {[=@*]} $nll {} nll
 491     ldebug c$lchan "got names $nll"
 492     foreach m [list_objs monitor] {
 493         mon_gotchanlist $m $lchan $nll
 494     }
 495 }
 496
 497 proc chan_sendnames {ch} {
 498     upvar #0 onchans($ch) oc
 499     ldebug c$ch "asking for namelist"
 500     sendout NAMES $ch
 501     set oc idle
 502 }
 503
 504 def_ucmd reload {
 505     set username [ta_word]
 506     ta_nomore
 507     set m [reloaduser $username]
 508     config_change
 509     ucmdr {} $m
 510 }
 511
 512 proc debug_reset {} {
 513     global debugusers debug_cancelling
 514     unset debug_cancelling
 515     set debugusers {}
 516     reporterr "debug mode timed out"
 517 }
 518
 519 def_ucmd debug {
 520     prefix_nick
 521     global debugusers debug_cancelling debug_reset_after
 522     if {![string length $text]} { error "must give list of usernames" }
 523     llength $text
 524     set debugusers $text
 525     catch { after cancel $debug_cancelling }
 526     set debug_cancelling [after $debug_reset_after debug_reset]
 527     reporterr "debug enabled by $n: $debugusers"
 528 }
 529
 530 def_ucmd nodebug {
 531     prefix_nick
 532     global debugusers debug_cancelling
 533     set debugusers {}
 534     catch { after cancel $debug_cancelling }
 535     catch { unset debug_cancelling }
 536     reporterr "debug disabled by $n"
 537 }
 538
 539 def_ucmd who {
 540     set r {}
 541     foreach m [list_objs monitor] {
 542         upvar #0 monitor/$m mm
 543         lappend r "monitoring $mm(chans) for $m"
 544     }
 545     foreach d [list_objs deviceset] {
 546         upvar #0 deviceset/$d dd
 547         regexp {^[^:]*\:[^:]*} $dd(group) dest
 548         lappend r "sending $dd(monname) to $dest"
 549     }
 550     ucmdr [join $r "\n"] {}
 551 }
 552
 553 proc connected {} {
 554     ldebug {} "connected"
 555     foreach f [glob -nocomplain pwdb/p*] {
 556         regexp {^pwdb/p(.*)$} $f dummy username
 557         set m [reloaduser $username]
 558     }
 559     config_change
 560 }
 561
 562 proc msg_JOIN {p c chan} { chan_shortly $chan }
 563 proc msg_PART {p c chan} { chan_shortly $chan }
 564 proc msg_KILL {p c user why} { allchans_shortly }
 565 proc msg_QUIT {p c why} { allchans_shortly }
 566 proc msg_KICK {p c chans users comment} {
 567     if {[llength $chans] > 1} {
 568         allchans_shortly
 569     } else {
 570         chan_shortly [lindex $chans 0]
 571     }
 572 }
 573
 574 if {[catch {
 575     loadhelp
 576     ensure_connecting
 577 } emsg]} {
 578     fail "startup: $emsg"
 579 }