perl/DXCommandmode.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the user facing command mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 #
   8 #
   9
  10 package DXCommandmode;
  11
  12 #use POSIX;
  13
  14 @ISA = qw(DXChannel);
  15
  16 use 5.10.1;
  17
  18 use POSIX qw(:math_h);
  19 use DXUtil;
  20 use DXChannel;
  21 use DXUser;
  22 use DXVars;
  23 use DXDebug;
  24 use DXM;
  25 use DXLog;
  26 use DXLogPrint;
  27 use DXBearing;
  28 use CmdAlias;
  29 use Filter;
  30 use Minimuf;
  31 use DXDb;
  32 use AnnTalk;
  33 use WCY;
  34 use Sun;
  35 use Internet;
  36 use Script;
  37 use QSL;
  38 use DB_File;
  39 use VE7CC;
  40 use DXXml;
  41 use AsyncMsg;
  42 use JSON;
  43 use Time::HiRes qw(gettimeofday tv_interval);
  44
  45 use Mojo::IOLoop;
  46 use DXSubprocess;
  47 use Mojo::UserAgent;
  48
  49 use strict;
  50 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
  51         $maxbadcount $msgpolltime $default_pagelth $cmdimportdir $users $maxusers);
  52
  53 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  54 %cmd_cache = ();                                # cache of short names
  55 $errstr = ();                                   # error string from eval
  56 %aliases = ();                                  # aliases for (parts of) commands
  57 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  58 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  59 $msgpolltime = 3600;                    # the time between polls for new messages
  60 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  61                                           # this does not exist as default, you need to create it manually
  62 $users = 0;                                       # no of users on this node currently
  63 $maxusers = 0;                            # max no users on this node for this run
  64
  65 #
  66 # obtain a new connection this is derived from dxchannel
  67 #
  68
  69 sub new
  70 {
  71         my $self = DXChannel::alloc(@_);
  72
  73         # routing, this must go out here to prevent race condx
  74         my $pkg = shift;
  75         my $call = shift;
  76 #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  77         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $self->hostname], );
  78
  79         # ALWAYS output the user
  80         my $ref = Route::User::get($call);
  81         if ($ref) {
  82                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  83                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
  84         }
  85
  86         return $self;
  87 }
  88
  89 # this is how a a connection starts, you get a hello message and the motd with
  90 # possibly some other messages asking you to set various things up if you are
  91 # new (or nearly new and slacking) user.
  92
  93 sub start
  94 {
  95         my ($self, $line, $sort) = @_;
  96         my $user = $self->{user};
  97         my $call = $self->{call};
  98         my $name = $user->{name};
  99
 100         # log it
 101         my $host = $self->{conn}->peerhost;
 102         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
 103         $host ||= "unknown";
 104         $self->{hostname} = $host;
 105
 106         $self->{name} = $name ? $name : $call;
 107         $self->send($self->msg('l2',$self->{name}));
 108         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 109         $self->{priv} = $user->priv || 0;
 110         $self->{lang} = $user->lang || $main::lang || 'en';
 111         my $pagelth = $user->pagelth;
 112         $pagelth = $default_pagelth unless defined $pagelth;
 113         $self->{pagelth} = $pagelth;
 114         ($self->{width}) = $line =~ /width=(\d+)/; $line =~ s/\s*width=\d+\s*//;
 115         if ($line =~ /host=/) {
 116                 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
 117                 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
 118                 unless ($h) {
 119                         ($h) = $line =~ /host=([\da..fA..F:]+)/;
 120                         $line =~ s/\s*host=[\da..fA..F:]+// if $h;
 121                 }
 122                 $self->{hostname} = $h if $h;
 123         }
 124         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 125         $self->{consort} = $line;       # save the connection type
 126
 127         LogDbg('DXCommand', "$call connected from $self->{hostname}");
 128
 129         # set some necessary flags on the user if they are connecting
 130         $self->{beep} = $user->wantbeep;
 131         $self->{ann} = $user->wantann;
 132         $self->{wwv} = $user->wantwwv;
 133         $self->{wcy} = $user->wantwcy;
 134         $self->{talk} = $user->wanttalk;
 135         $self->{wx} = $user->wantwx;
 136         $self->{dx} = $user->wantdx;
 137         $self->{logininfo} = $user->wantlogininfo;
 138         $self->{ann_talk} = $user->wantann_talk;
 139         $self->{here} = 1;
 140         $self->{prompt} = $user->prompt if $user->prompt;
 141         $self->{lastmsgpoll} = 0;
 142
 143         # sort out new dx spot stuff
 144         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 145         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 146         $user->wantusstate(0) unless defined $user->{wantusstate};
 147
 148         # sort out registration
 149         if ($main::reqreg == 1) {
 150                 $self->{registered} = $user->registered;
 151         } elsif ($main::reqreg == 2) {
 152                 $self->{registered} = !$user->registered;
 153         } else {
 154                 $self->{registered} = 1;
 155         }
 156
 157         # send the relevant MOTD
 158         $self->send_motd;
 159
 160         # sort out privilege reduction
 161         $self->{priv} = 0 unless $self->{hostname} eq '127.0.0.1' || $self->{hostname} eq '::1' || $self->conn->{usedpasswd};
 162
 163         # get the filters
 164         my $nossid = $call;
 165         $nossid =~ s/-\d+$//;
 166
 167         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 168                 || Filter::read_in('spots', $nossid, 0)
 169                         || Filter::read_in('spots', 'user_default', 0);
 170         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 171                 || Filter::read_in('wwv', $nossid, 0)
 172                         || Filter::read_in('wwv', 'user_default', 0);
 173         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 174                 || Filter::read_in('wcy', $nossid, 0)
 175                         || Filter::read_in('wcy', 'user_default', 0);
 176         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 177                 || Filter::read_in('ann', $nossid, 0)
 178                         || Filter::read_in('ann', 'user_default', 0) ;
 179         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 180                 || Filter::read_in('rbn', $nossid, 0)
 181                         || Filter::read_in('rbn', 'user_default', 0);
 182
 183         # clean up qra locators
 184         my $qra = $user->qra;
 185         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 186         unless ($qra) {
 187                 my $lat = $user->lat;
 188                 my $long = $user->long;
 189                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 190         }
 191
 192         # decide on echo
 193         my $echo = $user->wantecho;
 194         unless ($echo) {
 195                 $self->send_now('E', "0");
 196                 $self->send($self->msg('echow'));
 197                 $self->conn->echo($echo) if $self->conn->can('echo');
 198         }
 199
 200         $self->tell_login('loginu');
 201         $self->tell_buddies('loginb');
 202
 203         # do we need to send a forward/opernam?
 204         my $lastoper = $user->lastoper || 0;
 205         my $homenode = $user->homenode || "";
 206         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 207                 run_cmd($main::me, "forward/opernam $call");
 208                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 209         }
 210
 211         # run a script send the output to the punter
 212         my $script = new Script(lc $call) || new Script('user_default');
 213         $script->run($self) if $script;
 214
 215         # send cluster info
 216         $self->send($self->run_cmd("show/cluster"));
 217
 218         # send prompts for qth, name and things
 219         $self->send($self->msg('namee1')) if !$user->name;
 220         $self->send($self->msg('qthe1')) if !$user->qth;
 221         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 222         $self->send($self->msg('hnodee1')) if !$user->qth;
 223         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 224
 225         # send out any buddy messages for other people that are online
 226         foreach my $call (@{$user->buddies}) {
 227                 my $ref = Route::User::get($call);
 228                 if ($ref) {
 229                         foreach my $node ($ref->parents) {
 230                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 231                         }
 232                 }
 233         }
 234
 235         $self->lastmsgpoll($main::systime);
 236         $self->prompt;
 237 }
 238
 239 #
 240 # This is the normal command prompt driver
 241 #
 242
 243 sub normal
 244 {
 245         my $self = shift;
 246         my $cmdline = shift;
 247         my @ans;
 248
 249         # save this for them's that need it
 250         my $rawline = $cmdline;
 251
 252         # remove leading and trailing spaces
 253         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 254
 255         if ($self->{state} eq 'page') {
 256                 my $i = $self->{pagelth};
 257                 my $ref = $self->{pagedata};
 258                 my $tot = @$ref;
 259
 260                 # abort if we get a line starting in with a
 261                 if ($cmdline =~ /^a/io) {
 262                         undef $ref;
 263                         $i = 0;
 264                 }
 265
 266                 # send a tranche of data
 267                 while ($i-- > 0 && @$ref) {
 268                         my $line = shift @$ref;
 269                         $line =~ s/\s+$//o;     # why am having to do this?
 270                         $self->send($line);
 271                 }
 272
 273                 # reset state if none or else chuck out an intermediate prompt
 274                 if ($ref && @$ref) {
 275                         $tot -= $self->{pagelth};
 276                         $self->send($self->msg('page', $tot));
 277                 } else {
 278                         $self->state('prompt');
 279                 }
 280         } elsif ($self->{state} eq 'sysop') {
 281                 my $passwd = $self->{user}->passwd;
 282                 if ($passwd) {
 283                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 284                         my @l = @{$self->{passwd}};
 285                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 286                         if ($cmdline =~ /$str/) {
 287                                 $self->{priv} = $self->{user}->priv;
 288                         } else {
 289                                 $self->send($self->msg('sorry'));
 290                         }
 291                 } else {
 292                         $self->send($self->msg('sorry'));
 293                 }
 294                 $self->state('prompt');
 295         } elsif ($self->{state} eq 'passwd') {
 296                 my $passwd = $self->{user}->passwd;
 297                 if ($passwd && $cmdline eq $passwd) {
 298                         $self->send($self->msg('pw1'));
 299                         $self->state('passwd1');
 300                 } else {
 301                         $self->conn->{echo} = $self->conn->{decho};
 302                         delete $self->conn->{decho};
 303                         $self->send($self->msg('sorry'));
 304                         $self->state('prompt');
 305                 }
 306         } elsif ($self->{state} eq 'passwd1') {
 307                 $self->{passwd} = $cmdline;
 308                 $self->send($self->msg('pw2'));
 309                 $self->state('passwd2');
 310         } elsif ($self->{state} eq 'passwd2') {
 311                 if ($cmdline eq $self->{passwd}) {
 312                         $self->{user}->passwd($cmdline);
 313                         $self->send($self->msg('pw3'));
 314                 } else {
 315                         $self->send($self->msg('pw4'));
 316                 }
 317                 $self->conn->{echo} = $self->conn->{decho};
 318                 delete $self->conn->{decho};
 319                 $self->state('prompt');
 320         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 321                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 322                         for (@{$self->{talklist}}) {
 323                                 if ($self->{state} eq 'talk') {
 324                                         $self->send_talks($_,  $self->msg('talkend'));
 325                                 } else {
 326                                         $self->local_send('C', $self->msg('chatend', $_));
 327                                 }
 328                         }
 329                         $self->state('prompt');
 330                         delete $self->{talklist};
 331                 } elsif ($cmdline =~ m|^/+\w+|) {
 332                         $cmdline =~ s|^/||;
 333                         my $sendit = $cmdline =~ s|^/+||;
 334                         my @in = $self->run_cmd($cmdline);
 335                         $self->send_ans(@in);
 336                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 337                                 foreach my $l (@in) {
 338                                         my @bad;
 339                                         if (@bad = BadWords::check($l)) {
 340                                                 $self->badcount(($self->badcount||0) + @bad);
 341                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 342                                         } else {
 343                                                 for (@{$self->{talklist}}) {
 344                                                         if ($self->{state} eq 'talk') {
 345                                                                 $self->send_talks($_, $l);
 346                                                         } else {
 347                                                                 send_chats($self, $_, $l)
 348                                                         }
 349                                                 }
 350                                         }
 351                                 }
 352                         }
 353                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 354                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 355                         # send what has been said to whoever is in this person's talk list
 356                         my @bad;
 357                         if (@bad = BadWords::check($cmdline)) {
 358                                 $self->badcount(($self->badcount||0) + @bad);
 359                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 360                         } else {
 361                                 for (@{$self->{talklist}}) {
 362                                         if ($self->{state} eq 'talk') {
 363                                                 $self->send_talks($_, $rawline);
 364                                         } else {
 365                                                 send_chats($self, $_, $rawline);
 366                                         }
 367                                 }
 368                         }
 369                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 370                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 371                 } else {
 372                         # for safety
 373                         $self->state('prompt');
 374                 }
 375         } elsif (my $func = $self->{func}) {
 376                 no strict 'refs';
 377                 my @ans;
 378                 if (ref $self->{edit}) {
 379                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 380                 } else {
 381                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 382                 }
 383                 if ($@) {
 384                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 385                         delete $self->{func};
 386                         $self->state('prompt');
 387                         undef $@;
 388                 }
 389                 $self->send_ans(@ans);
 390         } else {
 391                 $self->send_ans(run_cmd($self, $cmdline));
 392         }
 393
 394         # check for excessive swearing
 395         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 396                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 397                 $self->disconnect;
 398                 return;
 399         }
 400
 401         # send a prompt only if we are in a prompt state
 402         $self->prompt() if $self->{state} =~ /^prompt/o;
 403 }
 404
 405 # send out the talk messages taking into account vias and connectivity
 406 sub send_talks
 407 {
 408         my ($self, $ent, $line) = @_;
 409
 410         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 411         $to = $ent unless $to;
 412         my $call = $via && $via ne '*' ? $via : $to;
 413         my $clref = Route::get($call);
 414         my $dxchan = $clref->dxchan if $clref;
 415         if ($dxchan) {
 416                 $dxchan->talk($self->{call}, $to, undef, $line);
 417         } else {
 418                 $self->send($self->msg('disc2', $via ? $via : $to));
 419                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 420                 if (@l) {
 421                         $self->{talklist} = \@l;
 422                 } else {
 423                         delete $self->{talklist};
 424                         $self->state('prompt');
 425                 }
 426         }
 427 }
 428
 429 sub send_chats
 430 {
 431         my $self = shift;
 432         my $target = shift;
 433         my $text = shift;
 434
 435         my $msgid = DXProt::nextchatmsgid();
 436         $text = "#$msgid $text";
 437         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 438 }
 439
 440 sub special_prompt
 441 {
 442         my $self = shift;
 443         my $prompt = shift;
 444         my @call;
 445         for (@{$self->{talklist}}) {
 446                 my ($to, $via) = /(\S+)>(\S+)/;
 447                 $to = $_ unless $to;
 448                 push @call, $to;
 449         }
 450         return $self->msg($prompt, join(',', @call));
 451 }
 452
 453 sub talk_prompt
 454 {
 455         my $self = shift;
 456         return $self->special_prompt('talkprompt');
 457 }
 458
 459 sub chat_prompt
 460 {
 461         my $self = shift;
 462         return $self->special_prompt('chatprompt');
 463 }
 464
 465 #
 466 # send a load of stuff to a command user with page prompting
 467 # and stuff
 468 #
 469
 470 sub send_ans
 471 {
 472         my $self = shift;
 473
 474         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 475                 my $i;
 476                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 477                         my $line = shift @_;
 478                         $line =~ s/\s+$//o;     # why am having to do this?
 479                         $self->send($line);
 480                 }
 481                 $self->{pagedata} =  [ @_ ];
 482                 $self->state('page');
 483                 $self->send($self->msg('page', scalar @_));
 484         } else {
 485                 for (@_) {
 486                         if (defined $_) {
 487                                 $self->send($_);
 488                         } else {
 489                                 $self->send('');
 490                         }
 491                 }
 492         }
 493 }
 494
 495 #
 496 # this is the thing that preps for running the command, it is done like this for the
 497 # benefit of remote command execution
 498 #
 499
 500 sub run_cmd
 501 {
 502         my $self = shift;
 503         my $user = $self->{user};
 504         my $call = $self->{call};
 505         my $cmdline = shift;
 506         my @ans;
 507
 508         return () if length $cmdline == 0;
 509
 510         # split the command line up into parts, the first part is the command
 511         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 512         $args = "" unless defined $args;
 513
 514         if ($cmd) {
 515
 516                 # check cmd
 517                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 518                         LogDbg('DXCommand', "cmd: invalid characters in '$cmd'");
 519                         return $self->_error_out('e1');
 520                 }
 521
 522                 # strip out // on command only
 523                 $cmd =~ s|//|/|g;
 524
 525                 my ($path, $fcmd);
 526
 527                 dbg("cmd: $cmd") if isdbg('command');
 528
 529                 # alias it if possible
 530                 my $acmd = CmdAlias::get_cmd($cmd);
 531                 if ($acmd) {
 532                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 533                         $args = "" unless defined $args;
 534                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 535                 }
 536
 537                 # first expand out the entry to a command
 538                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 539                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 540
 541                 if ($path && $cmd) {
 542                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 543
 544                         my $package = find_cmd_name($path, $fcmd);
 545                         return ($@) if $@;
 546
 547                         if ($package && $self->can("${package}::handle")) {
 548                                 no strict 'refs';
 549                                 dbg("cmd: package $package") if isdbg('command');
 550                                 my $t0 = [gettimeofday];
 551                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 552                                 if ($@) {
 553                                         DXDebug::dbgprintring(25);
 554                                         return (DXDebug::shortmess($@));
 555                                 }
 556                                 if (isdbg('progress')) {
 557                                         my $msecs = _diffms($t0);
 558                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 559                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 560                                 }
 561                         } else {
 562                                 dbg("cmd: $package not present") if isdbg('command');
 563                                 return $self->_error_out('e1');
 564                         }
 565                 } else {
 566                         dbg("cmd: $cmd not found") if isdbg('command');
 567                         return $self->_error_out('e1');
 568                 }
 569         }
 570
 571         my $ok = shift @ans;
 572         if ($ok) {
 573                 delete $self->{errors};
 574         } else {
 575                 if (++$self->{errors} > $DXChannel::maxerrors) {
 576                         $self->send($self->msg('e26'));
 577                         $self->disconnect;
 578                         return ();
 579                 }
 580         }
 581         return map {s/([^\s])\s+$/$1/; $_} @ans;
 582 }
 583
 584 #
 585 # This is called from inside the main cluster processing loop and is used
 586 # for despatching commands that are doing some long processing job
 587 #
 588 sub process
 589 {
 590         my $t = time;
 591         my @dxchan = DXChannel::get_all();
 592         my $dxchan;
 593
 594         $users = 0;
 595         foreach $dxchan (@dxchan) {
 596                 next unless $dxchan->is_user;
 597
 598                 # send a outstanding message prompt if required
 599                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 600                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 601                         $dxchan->lastmsgpoll($t);
 602                 }
 603
 604                 # send a prompt if no activity out on this channel
 605                 if ($t >= $dxchan->t + $main::user_interval) {
 606                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 607                         $dxchan->t($t);
 608                 }
 609                 ++$users;
 610                 $maxusers = $users if $users > $maxusers;
 611         }
 612
 613         while (my ($k, $v) = each %nothereslug) {
 614                 if ($main::systime >= $v + 300) {
 615                         delete $nothereslug{$k};
 616                 }
 617         }
 618
 619         import_cmd();
 620 }
 621
 622 #
 623 # finish up a user context
 624 #
 625 sub disconnect
 626 {
 627         my $self = shift;
 628         my $call = $self->call;
 629
 630         return if $self->{disconnecting}++;
 631
 632         delete $self->{senddbg};
 633
 634         my $uref = Route::User::get($call);
 635         my @rout;
 636         if ($uref) {
 637 #               @rout = $main::routeroot->del_user($uref);
 638                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 639
 640                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 641
 642                 # issue a pc17 to everybody interested
 643                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 644                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 645         } else {
 646                 confess "trying to disconnect a non existant user $call";
 647         }
 648
 649         # I was the last node visited
 650     $self->user->node($main::mycall);
 651
 652         # send info to all logged in thingies
 653         $self->tell_login('logoutu');
 654         $self->tell_buddies('logoutb');
 655
 656         LogDbg('DXCommand', "$call disconnected");
 657
 658         $self->SUPER::disconnect;
 659 }
 660
 661 #
 662 # short cut to output a prompt
 663 #
 664
 665 sub prompt
 666 {
 667         my $self = shift;
 668
 669         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 670
 671         my $call = $self->call;
 672         my $date = cldate($main::systime);
 673         my $time = ztime($main::systime);
 674         my $prompt = $self->{prompt} || $self->msg('pr');
 675
 676         $call = "($call)" unless $self->here;
 677         $prompt =~ s/\%C/$call/g;
 678         $prompt =~ s/\%D/$date/g;
 679         $prompt =~ s/\%T/$time/g;
 680         $prompt =~ s/\%M/$main::mycall/g;
 681
 682         $self->send($prompt);
 683 }
 684
 685 # broadcast a message to all users [except those mentioned after buffer]
 686 sub broadcast
 687 {
 688         my $pkg = shift;                        # ignored
 689         my $s = shift;                          # the line to be rebroadcast
 690
 691     foreach my $dxchan (DXChannel::get_all()) {
 692                 next unless $dxchan->is_user; # only interested in user channels
 693                 next if grep $dxchan == $_, @_;
 694                 $dxchan->send($s);                      # send it
 695         }
 696 }
 697
 698 # gimme all the users
 699 sub get_all
 700 {
 701         goto &DXChannel::get_all_users;
 702 }
 703
 704 # run a script for this user
 705 sub run_script
 706 {
 707         my $self = shift;
 708         my $silent = shift || 0;
 709
 710 }
 711
 712 #
 713 # search for the command in the cache of short->long form commands
 714 #
 715
 716 sub search
 717 {
 718         my ($path, $short_cmd, $suffix) = @_;
 719         my ($apath, $acmd);
 720
 721         # commands are lower case
 722         $short_cmd = lc $short_cmd;
 723         dbg("command: $path $short_cmd\n") if isdbg('command');
 724
 725         # do some checking for funny characters
 726         return () if $short_cmd =~ /\/$/;
 727
 728         # return immediately if we have it
 729         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 730         if ($apath && $acmd) {
 731                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 732                 return ($apath, $acmd);
 733         }
 734
 735         # if not guess
 736         my @parts = split '/', $short_cmd;
 737         my $dirfn;
 738         my $curdir = $path;
 739
 740         while (my $p = shift @parts) {
 741                 opendir(D, $curdir) or confess "can't open $curdir $!";
 742                 my @ls = readdir D;
 743                 closedir D;
 744
 745                 # if this isn't the last part
 746                 if (@parts) {
 747                         my $found;
 748                         foreach my $l (sort @ls) {
 749                                 next if $l =~ /^\./;
 750                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 751                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 752                                         $dirfn .= "$l/";
 753                                         $curdir .= "/$l";
 754                                         $found++;
 755                                         last;
 756                                 }
 757                         }
 758                         # only proceed if we find the directory asked for
 759                         return () unless $found;
 760                 } else {
 761                         foreach my $l (sort @ls) {
 762                                 next if $l =~ /^\./;
 763                                 next unless $l =~ /\.$suffix$/;
 764                                 if ($p eq substr($l, 0, length $p)) {
 765                                         $l =~ s/\.$suffix$//;
 766                                         $dirfn = "" unless $dirfn;
 767                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 768                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 769                                         return ($path, "$dirfn$l");
 770                                 }
 771                         }
 772                 }
 773         }
 774
 775         return ();
 776 }
 777
 778 # clear the command name cache
 779 sub clear_cmd_cache
 780 {
 781         no strict 'refs';
 782
 783         for my $k (keys %Cache) {
 784                 unless ($k =~ /cmd_cache/) {
 785                         dbg("Undefining cmd $k") if isdbg('command');
 786                         undef $DXCommandmode::{"${k}::"};
 787                 }
 788         }
 789         %cmd_cache = ();
 790         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 791 }
 792
 793 #
 794 # the persistant execution of things from the command directories
 795 #
 796 #
 797 # This allows perl programs to call functions dynamically
 798 #
 799 # This has been nicked directly from the perlembed pages
 800 #
 801 #require Devel::Symdump;
 802
 803 sub valid_package_name {
 804         my $string = shift;
 805         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 806
 807         $string =~ s|/|_|g;
 808         return "cmd_$string";
 809 }
 810
 811 #
 812 # this bit of magic finds a command in the offered directory
 813 sub find_cmd_name {
 814         my $path = shift;
 815         my $cmdname = shift;
 816         my $package = valid_package_name($cmdname);
 817         my $filename = "$path/$cmdname.pl";
 818         my $mtime = -M $filename;
 819
 820         # return if we can't find it
 821         $errstr = undef;
 822         unless (defined $mtime) {
 823                 $errstr = DXM::msg('e1');
 824                 return undef;
 825         }
 826
 827         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 828                 #we have compiled this subroutine already,
 829                 #it has not been updated on disk, nothing left to do
 830                 #print STDERR "already compiled $package->handler\n";
 831                 dbg("find_cmd_name: $package cached") if isdbg('command');
 832         } else {
 833
 834                 my $sub = readfilestr($filename);
 835                 unless ($sub) {
 836                         $errstr = "Syserr: can't open '$filename' $!";
 837                         return undef;
 838                 };
 839
 840                 #wrap the code into a subroutine inside our unique package
 841                 my $eval = qq(package DXCommandmode::$package; use 5.10.1; use POSIX qw{:math_h}; use DXLog; use DXDebug; use DXUser; use DXUtil; our \@ISA = qw{DXCommandmode}; );
 842
 843
 844                 if ($sub =~ m|\s*sub\s+handle\n|) {
 845                         $eval .= $sub;
 846                 } else {
 847                         $eval .= qq(sub handle { $sub });
 848                 }
 849
 850                 if (isdbg('eval')) {
 851                         my @list = split /\n/, $eval;
 852                         my $line;
 853                         for (@list) {
 854                                 dbg($_ . "\n") if isdbg('eval');
 855                         }
 856                 }
 857
 858                 # get rid of any existing sub and try to compile the new one
 859                 no strict 'refs';
 860
 861                 if (exists $Cache{$package}) {
 862                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 863                         undef $DXCommandmode::{"${package}::"};
 864                         delete $Cache{$package};
 865                 } else {
 866                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 867                 }
 868
 869                 eval $eval;
 870
 871                 $Cache{$package} = {mtime => $mtime } unless $@;
 872         }
 873
 874         return "DXCommandmode::$package";
 875 }
 876
 877 sub send
 878 {
 879         my $self = shift;
 880         if ($self->{gtk}) {
 881                 for (@_) {
 882                         $self->SUPER::send(dd(['cmd',$_]));
 883                 }
 884         } else {
 885                 $self->SUPER::send(@_);
 886         }
 887 }
 888
 889 sub local_send
 890 {
 891         my ($self, $let, $buf) = @_;
 892         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 893                 if ($self->{enhanced}) {
 894                         $self->send_later($let, $buf);
 895                 } else {
 896                         $self->send($buf);
 897                 }
 898         } else {
 899                 $self->delay($buf);
 900         }
 901 }
 902
 903 # send a talk message here
 904 sub talk
 905 {
 906         my ($self, $from, $to, $via, $line, $onode) = @_;
 907         $line =~ s/\\5E/\^/g;
 908         if ($self->{talk}) {
 909                 if ($self->{gtk}) {
 910                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 911                 } else {
 912                         $self->local_send('T', "$to de $from: $line");
 913                 }
 914         }
 915         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 916         # send a 'not here' message if required
 917         unless ($self->{here} && $from ne $to) {
 918                 my $key = "$to$from";
 919                 unless (exists $nothereslug{$key}) {
 920                         my ($ref, $dxchan);
 921                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 922                                 my $name = $self->user->name || $to;
 923                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 924                                 $nothereslug{$key} = $main::systime;
 925                                 $dxchan->talk($to, $from, undef, $s);
 926                         }
 927                 }
 928         }
 929 }
 930
 931 # send an announce
 932 sub announce
 933 {
 934         my $self = shift;
 935         my $line = shift;
 936         my $isolate = shift;
 937         my $to = shift;
 938         my $target = shift;
 939         my $text = shift;
 940         my ($filter, $hops);
 941
 942         if (!$self->{ann_talk} && $to ne $self->{call}) {
 943                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 944                 return if $call;
 945         }
 946
 947         if ($self->{annfilter}) {
 948                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 949                 return unless $filter;
 950         }
 951
 952         unless ($self->{ann}) {
 953                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 954         }
 955         return if $target eq 'SYSOP' && $self->{priv} < 5;
 956         my $buf;
 957         if ($self->{gtk}) {
 958                 $buf = dd(['ann', $to, $target, $text, @_])
 959         } else {
 960                 $buf = "$to$target de $_[0]: $text";
 961                 $buf =~ s/\%5E/^/g;
 962                 $buf .= "\a\a" if $self->{beep};
 963         }
 964         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 965 }
 966
 967 # send a chat
 968 sub chat
 969 {
 970         my $self = shift;
 971         my $line = shift;
 972         my $isolate = shift;
 973         my $target = shift;
 974         my $to = shift;
 975         my $text = shift;
 976         my ($filter, $hops);
 977
 978         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
 979
 980         $text =~ s/^\#\d+ //;
 981         my $buf;
 982         if ($self->{gtk}) {
 983                 $buf = dd(['chat', $to, $target, $text, @_])
 984         } else {
 985                 $buf = "$target de $_[0]: $text";
 986                 $buf =~ s/\%5E/^/g;
 987                 $buf .= "\a\a" if $self->{beep};
 988         }
 989         $self->local_send('C', $buf);
 990 }
 991
 992 sub format_dx_spot
 993 {
 994         my $self = shift;
 995
 996         my $t = ztime($_[2]);
 997         my $loc = '';
 998         my $clth = $self->{consort} eq 'local' ? 29 : 30;
 999         my $comment = substr (($_[3] || ''), 0, $clth);
1000         $comment .= ' ' x ($clth - (length($comment)));
1001         if ($self->{user}->wantgrid) {
1002                 my $ref = DXUser::get_current($_[1]);
1003                 if ($ref && $ref->qra) {
1004                         $loc = ' ' . substr($ref->qra, 0, 4);
1005                         $comment = substr $comment, 0,  ($clth - (length($comment)+length($loc)));
1006                         $comment .= $loc;
1007                         $loc = '';
1008                 }
1009         }
1010
1011         if ($self->{user}->wantgrid) {
1012                 my $ref = DXUser::get_current($_[4]);
1013                 if ($ref && $ref->qra) {
1014                         $loc = ' ' . substr($ref->qra, 0, 4);
1015                 }
1016         }
1017
1018         if ($self->{user}->wantdxitu) {
1019                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
1020                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
1021         } elsif ($self->{user}->wantdxcq) {
1022                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
1023                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
1024         } elsif ($self->{user}->wantusstate) {
1025                 $loc = ' ' . $_[13] if $_[13];
1026                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . $_[12] if $_[12];
1027         }
1028
1029         return sprintf "DX de %-7.7s%11.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
1030 }
1031
1032 # send a dx spot
1033 sub dx_spot
1034 {
1035         my $self = shift;
1036         my $line = shift;
1037         my $isolate = shift;
1038         return unless $self->{dx};
1039
1040         my ($filter, $hops);
1041
1042         if ($self->{spotsfilter}) {
1043                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1044                 return unless $filter;
1045         }
1046
1047         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1048
1049         my $buf;
1050         if ($self->{ve7cc}) {
1051                 $buf = VE7CC::dx_spot($self, @_);
1052         } elsif ($self->{gtk}) {
1053                 my ($dxloc, $byloc);
1054
1055                 my $ref = DXUser::get_current($_[4]);
1056                 if ($ref) {
1057                         $byloc = $ref->qra;
1058                         $byloc = substr($byloc, 0, 4) if $byloc;
1059                 }
1060
1061                 my $spot = $_[1];
1062                 $spot =~ s|/\w{1,4}$||;
1063                 $ref = DXUser::get_current($spot);
1064                 if ($ref) {
1065                         $dxloc = $ref->qra;
1066                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1067                 }
1068                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1069
1070         } else {
1071                 $buf = $self->format_dx_spot(@_);
1072                 $buf .= "\a\a" if $self->{beep};
1073                 $buf =~ s/\%5E/^/g;
1074         }
1075
1076         $self->local_send('X', $buf);
1077 }
1078
1079 sub wwv
1080 {
1081         my $self = shift;
1082         my $line = shift;
1083         my $isolate = shift;
1084         my ($filter, $hops);
1085
1086         return unless $self->{wwv};
1087
1088         if ($self->{wwvfilter}) {
1089                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1090                 return unless $filter;
1091         }
1092
1093         my $buf;
1094         if ($self->{gtk}) {
1095                 $buf = dd(['wwv', @_])
1096         } else {
1097                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1098                 $buf .= "\a\a" if $self->{beep};
1099         }
1100
1101         $self->local_send('V', $buf);
1102 }
1103
1104 sub wcy
1105 {
1106         my $self = shift;
1107         my $line = shift;
1108         my $isolate = shift;
1109         my ($filter, $hops);
1110
1111         return unless $self->{wcy};
1112
1113         if ($self->{wcyfilter}) {
1114                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1115                 return unless $filter;
1116         }
1117
1118         my $buf;
1119         if ($self->{gtk}) {
1120                 $buf = dd(['wcy', @_])
1121         } else {
1122                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1123                 $buf .= "\a\a" if $self->{beep};
1124         }
1125         $self->local_send('Y', $buf);
1126 }
1127
1128 # broadcast debug stuff to all interested parties
1129 sub broadcast_debug
1130 {
1131         my $s = shift;                          # the line to be rebroadcast
1132
1133         foreach my $dxchan (DXChannel::get_all_users) {
1134                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1135                 if ($dxchan->{gtk}) {
1136                         $dxchan->send_later('L', dd(['db', $s]));
1137                 } else {
1138                         $dxchan->send_later('L', $s);
1139                 }
1140         }
1141 }
1142
1143 sub do_entry_stuff
1144 {
1145         my $self = shift;
1146         my $line = shift;
1147         my @out;
1148
1149         if ($self->state eq 'enterbody') {
1150                 my $loc = $self->{loc} || confess "local var gone missing" ;
1151                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1152                         no strict 'refs';
1153                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1154                         $self->func(undef);
1155                         $self->state('prompt');
1156                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1157                         push @out, $self->msg('m10');
1158                         delete $loc->{lines};
1159                         delete $self->{loc};
1160                         $self->func(undef);
1161                         $self->state('prompt');
1162                 } else {
1163                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1164                         # i.e. it ain't and end or abort, therefore store the line
1165                 }
1166         } else {
1167                 confess "Invalid state $self->{state}";
1168         }
1169         return @out;
1170 }
1171
1172 sub store_startup_script
1173 {
1174         my $self = shift;
1175         my $loc = $self->{loc} || confess "local var gone missing" ;
1176         my @out;
1177         my $call = $loc->{call} || confess "callsign gone missing";
1178         confess "lines array gone missing" unless ref $loc->{lines};
1179         my $r = Script::store($call, $loc->{lines});
1180         if (defined $r) {
1181                 if ($r) {
1182                         push @out, $self->msg('m19', $call, $r);
1183                 } else {
1184                         push @out, $self->msg('m20', $call);
1185                 }
1186         } else {
1187                 push @out, "error opening startup script $call $!";
1188         }
1189         return @out;
1190 }
1191
1192 # Import any commands contained in any files in import_cmd directory
1193 #
1194 # If the filename has a recogisable callsign as some delimited part
1195 # of it, then this is the user the command will be run as.
1196 #
1197 sub import_cmd
1198 {
1199         # are there any to do in this directory?
1200         return unless -d $cmdimportdir;
1201         unless (opendir(DIR, $cmdimportdir)) {
1202                 LogDbg('err', "can\'t open $cmdimportdir $!");
1203                 return;
1204         }
1205
1206         my @names = readdir(DIR);
1207         closedir(DIR);
1208         my $name;
1209
1210         return unless @names;
1211
1212         foreach $name (@names) {
1213                 next if $name =~ /^\./;
1214
1215                 my $s = Script->new($name, $cmdimportdir);
1216                 if ($s) {
1217                         LogDbg('DXCommand', "Run import cmd file $name");
1218                         my @cat = split /[^A-Za-z0-9]+/, $name;
1219                         my ($call) = grep {is_callsign(uc $_)} @cat;
1220                         $call ||= $main::mycall;
1221                         $call = uc $call;
1222                         my @out;
1223
1224
1225                         $s->inscript(0);        # switch off script checks
1226
1227                         if ($call eq $main::mycall) {
1228                                 @out = $s->run($main::me, 1);
1229                         } else {
1230                                 my $dxchan = DXChannel::get($call);
1231                             if ($dxchan) {
1232                                         @out = $s->run($dxchan, 1);
1233                                 } else {
1234                                         my $u = DXUser::get($call);
1235                                         if ($u) {
1236                                                 $dxchan = $main::me;
1237                                                 my $old = $dxchan->{call};
1238                                                 my $priv = $dxchan->{priv};
1239                                                 my $user = $dxchan->{user};
1240                                                 $dxchan->{call} = $call;
1241                                                 $dxchan->{priv} = $u->priv;
1242                                                 $dxchan->{user} = $u;
1243                                                 @out = $s->run($dxchan, 1);
1244                                                 $dxchan->{call} = $old;
1245                                                 $dxchan->{priv} = $priv;
1246                                                 $dxchan->{user} = $user;
1247                                         } else {
1248                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1249                                         }
1250                                 }
1251                         }
1252                         $s->erase;
1253                         for (@out) {
1254                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1255                         }
1256                 } else {
1257                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1258                         unlink "$cmdimportdir/$name";
1259                 }
1260         }
1261 }
1262
1263 sub print_find_reply
1264 {
1265         my ($self, $node, $target, $flag, $ms) = @_;
1266         my $sort = $flag == 2 ? "External" : "Local";
1267         $self->send("$sort $target found at $node in $ms ms" );
1268 }
1269
1270 # send the most relevant motd
1271 sub send_motd
1272 {
1273         my $self = shift;
1274         my $motd;
1275
1276         unless ($self->{registered}) {
1277                 $motd = "${main::motd}_nor_$self->{lang}";
1278                 $motd = "${main::motd}_nor" unless -e $motd;
1279         }
1280         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1281         $motd = $main::motd unless $motd && -e $motd;
1282         if ($self->conn->ax25) {
1283                 if ($motd) {
1284                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1285                 } else {
1286                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1287                 }
1288         }
1289         $self->send_file($motd) if -e $motd;
1290 }
1291
1292
1293 # Punt off a long running command into a separate process
1294 #
1295 # This is called from commands to run some potentially long running
1296 # function. The process forks and then runs the function and returns
1297 # the result back to the cmd.
1298 #
1299 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1300 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1301 #       THE CURRENT CONTEXT!!
1302 #
1303 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1304 sub spawn_cmd
1305 {
1306         my $self = shift;
1307         my $line = shift;
1308         my $cmdref = shift;
1309         my $call = $self->{call};
1310         my %args = @_;
1311         my @out;
1312
1313         my $cb = delete $args{cb};
1314         my $prefix = delete $args{prefix};
1315         my $progress = delete $args{progress};
1316         my $args = delete $args{args} || [];
1317         my $t0 = [gettimeofday];
1318
1319         no strict 'refs';
1320
1321         # just behave normally if something has set the "one-shot" _nospawn in the channel
1322         if ($self->{_nospawn}) {
1323                 eval { @out = $cmdref->(@$args); };
1324                 if ($@) {
1325                         DXDebug::dbgprintring(25);
1326                         push @out, DXDebug::shortmess($@);
1327                 }
1328                 return @out;
1329         }
1330
1331         my $fc = DXSubprocess->new;
1332 #       $fc->serializer(\&encode_json);
1333 #       $fc->deserializer(\&decode_json);
1334         $fc->run(
1335                          sub {
1336                                  my $subpro = shift;
1337                                  if (isdbg('progress')) {
1338                                          my $s = qq{line: "$line"};
1339                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1340                                          dbg($s);
1341                                  }
1342                                  eval { @out = $cmdref->(@$args); };
1343                                  if ($@) {
1344                                          DXDebug::dbgprintring(25);
1345                                          push @out, DXDebug::shortmess($@);
1346                                  }
1347                                  return @out;
1348                          },
1349 #                        $args,
1350                          sub {
1351                                  my ($fc, $err, @res) = @_;
1352                                  my $dxchan = DXChannel::get($call);
1353                                  return unless $dxchan;
1354
1355                                  if ($err) {
1356                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1357                                          dbg($s) if isdbg('chan');
1358                                          $dxchan->send($s);
1359                                          return;
1360                                  }
1361                                  if ($cb) {
1362                                          # transform output if required
1363                                          @res = $cb->($dxchan, @res);
1364                                  }
1365                                  if (@res) {
1366                                          if (defined $prefix) {
1367                                                  $dxchan->send(map {"$prefix$_"} @res);
1368                                          } else {
1369                                                  $dxchan->send(@res);
1370                                          }
1371                                  }
1372                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1373                          });
1374
1375         return @out;
1376 }
1377
1378 sub user_count
1379 {
1380         return ($users, $maxusers);
1381 }
1382 1;
1383 __END__