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->{wantrbn} = $user->wantrbn;
 140         $self->{here} = 1;
 141         $self->{prompt} = $user->prompt if $user->prompt;
 142         $self->{lastmsgpoll} = 0;
 143
 144         # sort out new dx spot stuff
 145         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 146         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 147         $user->wantusstate(0) unless defined $user->{wantusstate};
 148
 149         # sort out registration
 150         if ($main::reqreg == 1) {
 151                 $self->{registered} = $user->registered;
 152         } elsif ($main::reqreg == 2) {
 153                 $self->{registered} = !$user->registered;
 154         } else {
 155                 $self->{registered} = 1;
 156         }
 157
 158         # send the relevant MOTD
 159         $self->send_motd;
 160
 161         # sort out privilege reduction
 162         $self->{priv} = 0 unless $self->{hostname} eq '127.0.0.1' || $self->{hostname} eq '::1' || $self->conn->{usedpasswd};
 163
 164         # get the filters
 165         my $nossid = $call;
 166         $nossid =~ s/-\d+$//;
 167
 168         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 169                 || Filter::read_in('spots', $nossid, 0)
 170                         || Filter::read_in('spots', 'user_default', 0);
 171         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 172                 || Filter::read_in('wwv', $nossid, 0)
 173                         || Filter::read_in('wwv', 'user_default', 0);
 174         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 175                 || Filter::read_in('wcy', $nossid, 0)
 176                         || Filter::read_in('wcy', 'user_default', 0);
 177         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 178                 || Filter::read_in('ann', $nossid, 0)
 179                         || Filter::read_in('ann', 'user_default', 0) ;
 180         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 181                 || Filter::read_in('rbn', $nossid, 0)
 182                 || Filter::read_in('spots', $call, 0)
 183                 || Filter::read_in('spots', $nossid, 0)
 184                 || Filter::read_in('rbn', 'user_default', 0)
 185                 || Filter::read_in('spots', 'user_default', 0);
 186
 187         # clean up qra locators
 188         my $qra = $user->qra;
 189         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 190         unless ($qra) {
 191                 my $lat = $user->lat;
 192                 my $long = $user->long;
 193                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 194         }
 195
 196         # decide on echo
 197         my $echo = $user->wantecho;
 198         unless ($echo) {
 199                 $self->send_now('E', "0");
 200                 $self->send($self->msg('echow'));
 201                 $self->conn->echo($echo) if $self->conn->can('echo');
 202         }
 203
 204         $self->tell_login('loginu');
 205         $self->tell_buddies('loginb');
 206
 207         # do we need to send a forward/opernam?
 208         my $lastoper = $user->lastoper || 0;
 209         my $homenode = $user->homenode || "";
 210         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 211                 run_cmd($main::me, "forward/opernam $call");
 212                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 213         }
 214
 215         # run a script send the output to the punter
 216         my $script = new Script(lc $call) || new Script('user_default');
 217         $script->run($self) if $script;
 218
 219         # send cluster info
 220         $self->send($self->run_cmd("show/cluster"));
 221
 222         # send prompts for qth, name and things
 223         $self->send($self->msg('namee1')) if !$user->name;
 224         $self->send($self->msg('qthe1')) if !$user->qth;
 225         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 226         $self->send($self->msg('hnodee1')) if !$user->qth;
 227         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 228
 229         # send out any buddy messages for other people that are online
 230         foreach my $call (@{$user->buddies}) {
 231                 my $ref = Route::User::get($call);
 232                 if ($ref) {
 233                         foreach my $node ($ref->parents) {
 234                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 235                         }
 236                 }
 237         }
 238
 239         $self->lastmsgpoll($main::systime);
 240         $self->prompt;
 241 }
 242
 243 #
 244 # This is the normal command prompt driver
 245 #
 246
 247 sub normal
 248 {
 249         my $self = shift;
 250         my $cmdline = shift;
 251         my @ans;
 252
 253         # save this for them's that need it
 254         my $rawline = $cmdline;
 255
 256         # remove leading and trailing spaces
 257         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 258
 259         if ($self->{state} eq 'page') {
 260                 my $i = $self->{pagelth};
 261                 my $ref = $self->{pagedata};
 262                 my $tot = @$ref;
 263
 264                 # abort if we get a line starting in with a
 265                 if ($cmdline =~ /^a/io) {
 266                         undef $ref;
 267                         $i = 0;
 268                 }
 269
 270                 # send a tranche of data
 271                 while ($i-- > 0 && @$ref) {
 272                         my $line = shift @$ref;
 273                         $line =~ s/\s+$//o;     # why am having to do this?
 274                         $self->send($line);
 275                 }
 276
 277                 # reset state if none or else chuck out an intermediate prompt
 278                 if ($ref && @$ref) {
 279                         $tot -= $self->{pagelth};
 280                         $self->send($self->msg('page', $tot));
 281                 } else {
 282                         $self->state('prompt');
 283                 }
 284         } elsif ($self->{state} eq 'sysop') {
 285                 my $passwd = $self->{user}->passwd;
 286                 if ($passwd) {
 287                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 288                         my @l = @{$self->{passwd}};
 289                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 290                         if ($cmdline =~ /$str/) {
 291                                 $self->{priv} = $self->{user}->priv;
 292                         } else {
 293                                 $self->send($self->msg('sorry'));
 294                         }
 295                 } else {
 296                         $self->send($self->msg('sorry'));
 297                 }
 298                 $self->state('prompt');
 299         } elsif ($self->{state} eq 'passwd') {
 300                 my $passwd = $self->{user}->passwd;
 301                 if ($passwd && $cmdline eq $passwd) {
 302                         $self->send($self->msg('pw1'));
 303                         $self->state('passwd1');
 304                 } else {
 305                         $self->conn->{echo} = $self->conn->{decho};
 306                         delete $self->conn->{decho};
 307                         $self->send($self->msg('sorry'));
 308                         $self->state('prompt');
 309                 }
 310         } elsif ($self->{state} eq 'passwd1') {
 311                 $self->{passwd} = $cmdline;
 312                 $self->send($self->msg('pw2'));
 313                 $self->state('passwd2');
 314         } elsif ($self->{state} eq 'passwd2') {
 315                 if ($cmdline eq $self->{passwd}) {
 316                         $self->{user}->passwd($cmdline);
 317                         $self->send($self->msg('pw3'));
 318                 } else {
 319                         $self->send($self->msg('pw4'));
 320                 }
 321                 $self->conn->{echo} = $self->conn->{decho};
 322                 delete $self->conn->{decho};
 323                 $self->state('prompt');
 324         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 325                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 326                         for (@{$self->{talklist}}) {
 327                                 if ($self->{state} eq 'talk') {
 328                                         $self->send_talks($_,  $self->msg('talkend'));
 329                                 } else {
 330                                         $self->local_send('C', $self->msg('chatend', $_));
 331                                 }
 332                         }
 333                         $self->state('prompt');
 334                         delete $self->{talklist};
 335                 } elsif ($cmdline =~ m|^/+\w+|) {
 336                         $cmdline =~ s|^/||;
 337                         my $sendit = $cmdline =~ s|^/+||;
 338                         my @in = $self->run_cmd($cmdline);
 339                         $self->send_ans(@in);
 340                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 341                                 foreach my $l (@in) {
 342                                         my @bad;
 343                                         if (@bad = BadWords::check($l)) {
 344                                                 $self->badcount(($self->badcount||0) + @bad);
 345                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 346                                         } else {
 347                                                 for (@{$self->{talklist}}) {
 348                                                         if ($self->{state} eq 'talk') {
 349                                                                 $self->send_talks($_, $l);
 350                                                         } else {
 351                                                                 send_chats($self, $_, $l)
 352                                                         }
 353                                                 }
 354                                         }
 355                                 }
 356                         }
 357                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 358                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 359                         # send what has been said to whoever is in this person's talk list
 360                         my @bad;
 361                         if (@bad = BadWords::check($cmdline)) {
 362                                 $self->badcount(($self->badcount||0) + @bad);
 363                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 364                         } else {
 365                                 for (@{$self->{talklist}}) {
 366                                         if ($self->{state} eq 'talk') {
 367                                                 $self->send_talks($_, $rawline);
 368                                         } else {
 369                                                 send_chats($self, $_, $rawline);
 370                                         }
 371                                 }
 372                         }
 373                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 374                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 375                 } else {
 376                         # for safety
 377                         $self->state('prompt');
 378                 }
 379         } elsif (my $func = $self->{func}) {
 380                 no strict 'refs';
 381                 my @ans;
 382                 if (ref $self->{edit}) {
 383                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 384                 } else {
 385                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 386                 }
 387                 if ($@) {
 388                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 389                         delete $self->{func};
 390                         $self->state('prompt');
 391                         undef $@;
 392                 }
 393                 $self->send_ans(@ans);
 394         } else {
 395                 $self->send_ans(run_cmd($self, $cmdline));
 396         }
 397
 398         # check for excessive swearing
 399         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 400                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 401                 $self->disconnect;
 402                 return;
 403         }
 404
 405         # send a prompt only if we are in a prompt state
 406         $self->prompt() if $self->{state} =~ /^prompt/o;
 407 }
 408
 409 # send out the talk messages taking into account vias and connectivity
 410 sub send_talks
 411 {
 412         my ($self, $ent, $line) = @_;
 413
 414         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 415         $to = $ent unless $to;
 416         my $call = $via && $via ne '*' ? $via : $to;
 417         my $clref = Route::get($call);
 418         my $dxchan = $clref->dxchan if $clref;
 419         if ($dxchan) {
 420                 $dxchan->talk($self->{call}, $to, undef, $line);
 421         } else {
 422                 $self->send($self->msg('disc2', $via ? $via : $to));
 423                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 424                 if (@l) {
 425                         $self->{talklist} = \@l;
 426                 } else {
 427                         delete $self->{talklist};
 428                         $self->state('prompt');
 429                 }
 430         }
 431 }
 432
 433 sub send_chats
 434 {
 435         my $self = shift;
 436         my $target = shift;
 437         my $text = shift;
 438
 439         my $msgid = DXProt::nextchatmsgid();
 440         $text = "#$msgid $text";
 441         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 442 }
 443
 444 sub special_prompt
 445 {
 446         my $self = shift;
 447         my $prompt = shift;
 448         my @call;
 449         for (@{$self->{talklist}}) {
 450                 my ($to, $via) = /(\S+)>(\S+)/;
 451                 $to = $_ unless $to;
 452                 push @call, $to;
 453         }
 454         return $self->msg($prompt, join(',', @call));
 455 }
 456
 457 sub talk_prompt
 458 {
 459         my $self = shift;
 460         return $self->special_prompt('talkprompt');
 461 }
 462
 463 sub chat_prompt
 464 {
 465         my $self = shift;
 466         return $self->special_prompt('chatprompt');
 467 }
 468
 469 #
 470 # send a load of stuff to a command user with page prompting
 471 # and stuff
 472 #
 473
 474 sub send_ans
 475 {
 476         my $self = shift;
 477
 478         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 479                 my $i;
 480                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 481                         my $line = shift @_;
 482                         $line =~ s/\s+$//o;     # why am having to do this?
 483                         $self->send($line);
 484                 }
 485                 $self->{pagedata} =  [ @_ ];
 486                 $self->state('page');
 487                 $self->send($self->msg('page', scalar @_));
 488         } else {
 489                 for (@_) {
 490                         if (defined $_) {
 491                                 $self->send($_);
 492                         } else {
 493                                 $self->send('');
 494                         }
 495                 }
 496         }
 497 }
 498
 499 #
 500 # this is the thing that preps for running the command, it is done like this for the
 501 # benefit of remote command execution
 502 #
 503
 504 sub run_cmd
 505 {
 506         my $self = shift;
 507         my $user = $self->{user};
 508         my $call = $self->{call};
 509         my $cmdline = shift;
 510         my @ans;
 511
 512         return () if length $cmdline == 0;
 513
 514         # split the command line up into parts, the first part is the command
 515         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 516         $args = "" unless defined $args;
 517
 518         if ($cmd) {
 519
 520                 # check cmd
 521                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 522                         LogDbg('DXCommand', "cmd: invalid characters in '$cmd'");
 523                         return $self->_error_out('e1');
 524                 }
 525
 526                 # strip out // on command only
 527                 $cmd =~ s|//|/|g;
 528
 529                 my ($path, $fcmd);
 530
 531                 dbg("cmd: $cmd") if isdbg('command');
 532
 533                 # alias it if possible
 534                 my $acmd = CmdAlias::get_cmd($cmd);
 535                 if ($acmd) {
 536                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 537                         $args = "" unless defined $args;
 538                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 539                 }
 540
 541                 # first expand out the entry to a command
 542                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 543                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 544
 545                 if ($path && $cmd) {
 546                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 547
 548                         my $package = find_cmd_name($path, $fcmd);
 549                         return ($@) if $@;
 550
 551                         if ($package && $self->can("${package}::handle")) {
 552                                 no strict 'refs';
 553                                 dbg("cmd: package $package") if isdbg('command');
 554                                 my $t0 = [gettimeofday];
 555                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 556                                 if ($@) {
 557                                         DXDebug::dbgprintring(25);
 558                                         return (DXDebug::shortmess($@));
 559                                 }
 560                                 if (isdbg('progress')) {
 561                                         my $msecs = _diffms($t0);
 562                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 563                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 564                                 }
 565                         } else {
 566                                 dbg("cmd: $package not present") if isdbg('command');
 567                                 return $self->_error_out('e1');
 568                         }
 569                 } else {
 570                         dbg("cmd: $cmd not found") if isdbg('command');
 571                         return $self->_error_out('e1');
 572                 }
 573         }
 574
 575         my $ok = shift @ans;
 576         if ($ok) {
 577                 delete $self->{errors};
 578         } else {
 579                 if (++$self->{errors} > $DXChannel::maxerrors) {
 580                         $self->send($self->msg('e26'));
 581                         $self->disconnect;
 582                         return ();
 583                 }
 584         }
 585         return map {s/([^\s])\s+$/$1/; $_} @ans;
 586 }
 587
 588 #
 589 # This is called from inside the main cluster processing loop and is used
 590 # for despatching commands that are doing some long processing job
 591 #
 592 sub process
 593 {
 594         my $t = time;
 595         my @dxchan = DXChannel::get_all();
 596         my $dxchan;
 597
 598         $users = 0;
 599         foreach $dxchan (@dxchan) {
 600                 next unless $dxchan->is_user;
 601
 602                 # send a outstanding message prompt if required
 603                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 604                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 605                         $dxchan->lastmsgpoll($t);
 606                 }
 607
 608                 # send a prompt if no activity out on this channel
 609                 if ($t >= $dxchan->t + $main::user_interval) {
 610                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 611                         $dxchan->t($t);
 612                 }
 613                 ++$users;
 614                 $maxusers = $users if $users > $maxusers;
 615         }
 616
 617         while (my ($k, $v) = each %nothereslug) {
 618                 if ($main::systime >= $v + 300) {
 619                         delete $nothereslug{$k};
 620                 }
 621         }
 622
 623         import_cmd();
 624 }
 625
 626 #
 627 # finish up a user context
 628 #
 629 sub disconnect
 630 {
 631         my $self = shift;
 632         my $call = $self->call;
 633
 634         return if $self->{disconnecting}++;
 635
 636         delete $self->{senddbg};
 637
 638         my $uref = Route::User::get($call);
 639         my @rout;
 640         if ($uref) {
 641 #               @rout = $main::routeroot->del_user($uref);
 642                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 643
 644                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 645
 646                 # issue a pc17 to everybody interested
 647                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 648                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 649         } else {
 650                 confess "trying to disconnect a non existant user $call";
 651         }
 652
 653         # I was the last node visited
 654     $self->user->node($main::mycall);
 655
 656         # send info to all logged in thingies
 657         $self->tell_login('logoutu');
 658         $self->tell_buddies('logoutb');
 659
 660         LogDbg('DXCommand', "$call disconnected");
 661
 662         $self->SUPER::disconnect;
 663 }
 664
 665 #
 666 # short cut to output a prompt
 667 #
 668
 669 sub prompt
 670 {
 671         my $self = shift;
 672
 673         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 674
 675         my $call = $self->call;
 676         my $date = cldate($main::systime);
 677         my $time = ztime($main::systime);
 678         my $prompt = $self->{prompt} || $self->msg('pr');
 679
 680         $call = "($call)" unless $self->here;
 681         $prompt =~ s/\%C/$call/g;
 682         $prompt =~ s/\%D/$date/g;
 683         $prompt =~ s/\%T/$time/g;
 684         $prompt =~ s/\%M/$main::mycall/g;
 685
 686         $self->send($prompt);
 687 }
 688
 689 # broadcast a message to all users [except those mentioned after buffer]
 690 sub broadcast
 691 {
 692         my $pkg = shift;                        # ignored
 693         my $s = shift;                          # the line to be rebroadcast
 694
 695     foreach my $dxchan (DXChannel::get_all()) {
 696                 next unless $dxchan->is_user; # only interested in user channels
 697                 next if grep $dxchan == $_, @_;
 698                 $dxchan->send($s);                      # send it
 699         }
 700 }
 701
 702 # gimme all the users
 703 sub get_all
 704 {
 705         goto &DXChannel::get_all_users;
 706 }
 707
 708 # run a script for this user
 709 sub run_script
 710 {
 711         my $self = shift;
 712         my $silent = shift || 0;
 713
 714 }
 715
 716 #
 717 # search for the command in the cache of short->long form commands
 718 #
 719
 720 sub search
 721 {
 722         my ($path, $short_cmd, $suffix) = @_;
 723         my ($apath, $acmd);
 724
 725         # commands are lower case
 726         $short_cmd = lc $short_cmd;
 727         dbg("command: $path $short_cmd\n") if isdbg('command');
 728
 729         # do some checking for funny characters
 730         return () if $short_cmd =~ /\/$/;
 731
 732         # return immediately if we have it
 733         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 734         if ($apath && $acmd) {
 735                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 736                 return ($apath, $acmd);
 737         }
 738
 739         # if not guess
 740         my @parts = split '/', $short_cmd;
 741         my $dirfn;
 742         my $curdir = $path;
 743
 744         while (my $p = shift @parts) {
 745                 opendir(D, $curdir) or confess "can't open $curdir $!";
 746                 my @ls = readdir D;
 747                 closedir D;
 748
 749                 # if this isn't the last part
 750                 if (@parts) {
 751                         my $found;
 752                         foreach my $l (sort @ls) {
 753                                 next if $l =~ /^\./;
 754                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 755                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 756                                         $dirfn .= "$l/";
 757                                         $curdir .= "/$l";
 758                                         $found++;
 759                                         last;
 760                                 }
 761                         }
 762                         # only proceed if we find the directory asked for
 763                         return () unless $found;
 764                 } else {
 765                         foreach my $l (sort @ls) {
 766                                 next if $l =~ /^\./;
 767                                 next unless $l =~ /\.$suffix$/;
 768                                 if ($p eq substr($l, 0, length $p)) {
 769                                         $l =~ s/\.$suffix$//;
 770                                         $dirfn = "" unless $dirfn;
 771                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 772                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 773                                         return ($path, "$dirfn$l");
 774                                 }
 775                         }
 776                 }
 777         }
 778
 779         return ();
 780 }
 781
 782 # clear the command name cache
 783 sub clear_cmd_cache
 784 {
 785         no strict 'refs';
 786
 787         for my $k (keys %Cache) {
 788                 unless ($k =~ /cmd_cache/) {
 789                         dbg("Undefining cmd $k") if isdbg('command');
 790                         undef $DXCommandmode::{"${k}::"};
 791                 }
 792         }
 793         %cmd_cache = ();
 794         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 795 }
 796
 797 #
 798 # the persistant execution of things from the command directories
 799 #
 800 #
 801 # This allows perl programs to call functions dynamically
 802 #
 803 # This has been nicked directly from the perlembed pages
 804 #
 805 #require Devel::Symdump;
 806
 807 sub valid_package_name {
 808         my $string = shift;
 809         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 810
 811         $string =~ s|/|_|g;
 812         return "cmd_$string";
 813 }
 814
 815 #
 816 # this bit of magic finds a command in the offered directory
 817 sub find_cmd_name {
 818         my $path = shift;
 819         my $cmdname = shift;
 820         my $package = valid_package_name($cmdname);
 821         my $filename = "$path/$cmdname.pl";
 822         my $mtime = -M $filename;
 823
 824         # return if we can't find it
 825         $errstr = undef;
 826         unless (defined $mtime) {
 827                 $errstr = DXM::msg('e1');
 828                 return undef;
 829         }
 830
 831         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 832                 #we have compiled this subroutine already,
 833                 #it has not been updated on disk, nothing left to do
 834                 #print STDERR "already compiled $package->handler\n";
 835                 dbg("find_cmd_name: $package cached") if isdbg('command');
 836         } else {
 837
 838                 my $sub = readfilestr($filename);
 839                 unless ($sub) {
 840                         $errstr = "Syserr: can't open '$filename' $!";
 841                         return undef;
 842                 };
 843
 844                 #wrap the code into a subroutine inside our unique package
 845                 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}; );
 846
 847
 848                 if ($sub =~ m|\s*sub\s+handle\n|) {
 849                         $eval .= $sub;
 850                 } else {
 851                         $eval .= qq(sub handle { $sub });
 852                 }
 853
 854                 if (isdbg('eval')) {
 855                         my @list = split /\n/, $eval;
 856                         my $line;
 857                         for (@list) {
 858                                 dbg($_ . "\n") if isdbg('eval');
 859                         }
 860                 }
 861
 862                 # get rid of any existing sub and try to compile the new one
 863                 no strict 'refs';
 864
 865                 if (exists $Cache{$package}) {
 866                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 867                         undef $DXCommandmode::{"${package}::"};
 868                         delete $Cache{$package};
 869                 } else {
 870                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 871                 }
 872
 873                 eval $eval;
 874
 875                 $Cache{$package} = {mtime => $mtime } unless $@;
 876         }
 877
 878         return "DXCommandmode::$package";
 879 }
 880
 881 sub send
 882 {
 883         my $self = shift;
 884         if ($self->{gtk}) {
 885                 for (@_) {
 886                         $self->SUPER::send(dd(['cmd',$_]));
 887                 }
 888         } else {
 889                 $self->SUPER::send(@_);
 890         }
 891 }
 892
 893 sub local_send
 894 {
 895         my ($self, $let, $buf) = @_;
 896         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 897                 if ($self->{enhanced}) {
 898                         $self->send_later($let, $buf);
 899                 } else {
 900                         $self->send($buf);
 901                 }
 902         } else {
 903                 $self->delay($buf);
 904         }
 905 }
 906
 907 # send a talk message here
 908 sub talk
 909 {
 910         my ($self, $from, $to, $via, $line, $onode) = @_;
 911         $line =~ s/\\5E/\^/g;
 912         if ($self->{talk}) {
 913                 if ($self->{gtk}) {
 914                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 915                 } else {
 916                         $self->local_send('T', "$to de $from: $line");
 917                 }
 918         }
 919         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 920         # send a 'not here' message if required
 921         unless ($self->{here} && $from ne $to) {
 922                 my $key = "$to$from";
 923                 unless (exists $nothereslug{$key}) {
 924                         my ($ref, $dxchan);
 925                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 926                                 my $name = $self->user->name || $to;
 927                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 928                                 $nothereslug{$key} = $main::systime;
 929                                 $dxchan->talk($to, $from, undef, $s);
 930                         }
 931                 }
 932         }
 933 }
 934
 935 # send an announce
 936 sub announce
 937 {
 938         my $self = shift;
 939         my $line = shift;
 940         my $isolate = shift;
 941         my $to = shift;
 942         my $target = shift;
 943         my $text = shift;
 944         my ($filter, $hops);
 945
 946         if (!$self->{ann_talk} && $to ne $self->{call}) {
 947                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 948                 return if $call;
 949         }
 950
 951         if ($self->{annfilter}) {
 952                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 953                 return unless $filter;
 954         }
 955
 956         unless ($self->{ann}) {
 957                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 958         }
 959         return if $target eq 'SYSOP' && $self->{priv} < 5;
 960         my $buf;
 961         if ($self->{gtk}) {
 962                 $buf = dd(['ann', $to, $target, $text, @_])
 963         } else {
 964                 $buf = "$to$target de $_[0]: $text";
 965                 $buf =~ s/\%5E/^/g;
 966                 $buf .= "\a\a" if $self->{beep};
 967         }
 968         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 969 }
 970
 971 # send a chat
 972 sub chat
 973 {
 974         my $self = shift;
 975         my $line = shift;
 976         my $isolate = shift;
 977         my $target = shift;
 978         my $to = shift;
 979         my $text = shift;
 980         my ($filter, $hops);
 981
 982         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
 983
 984         $text =~ s/^\#\d+ //;
 985         my $buf;
 986         if ($self->{gtk}) {
 987                 $buf = dd(['chat', $to, $target, $text, @_])
 988         } else {
 989                 $buf = "$target de $_[0]: $text";
 990                 $buf =~ s/\%5E/^/g;
 991                 $buf .= "\a\a" if $self->{beep};
 992         }
 993         $self->local_send('C', $buf);
 994 }
 995
 996 sub format_dx_spot
 997 {
 998         my $self = shift;
 999
1000         my $t = ztime($_[2]);
1001         my $loc = '';
1002         my $clth = $self->{consort} eq 'local' ? 29 : 30;
1003         my $comment = substr (($_[3] || ''), 0, $clth);
1004         $comment .= ' ' x ($clth - (length($comment)));
1005         if ($self->{user}->wantgrid) {
1006                 my $ref = DXUser::get_current($_[1]);
1007                 if ($ref && $ref->qra) {
1008                         $loc = ' ' . substr($ref->qra, 0, 4);
1009                         $comment = substr $comment, 0,  ($clth - (length($comment)+length($loc)));
1010                         $comment .= $loc;
1011                         $loc = '';
1012                 }
1013         }
1014
1015         if ($self->{user}->wantgrid) {
1016                 my $ref = DXUser::get_current($_[4]);
1017                 if ($ref && $ref->qra) {
1018                         $loc = ' ' . substr($ref->qra, 0, 4);
1019                 }
1020         }
1021
1022         if ($self->{user}->wantdxitu) {
1023                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
1024                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
1025         } elsif ($self->{user}->wantdxcq) {
1026                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
1027                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
1028         } elsif ($self->{user}->wantusstate) {
1029                 $loc = ' ' . $_[13] if $_[13];
1030                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . $_[12] if $_[12];
1031         }
1032
1033         return sprintf "DX de %-7.7s%11.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
1034 }
1035
1036 # send a dx spot
1037 sub dx_spot
1038 {
1039         my $self = shift;
1040         my $line = shift;
1041         my $isolate = shift;
1042         return unless $self->{dx};
1043
1044         my ($filter, $hops);
1045
1046         if ($self->{spotsfilter}) {
1047                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1048                 return unless $filter;
1049         }
1050
1051         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1052
1053         my $buf;
1054         if ($self->{ve7cc}) {
1055                 $buf = VE7CC::dx_spot($self, @_);
1056         } elsif ($self->{gtk}) {
1057                 my ($dxloc, $byloc);
1058
1059                 my $ref = DXUser::get_current($_[4]);
1060                 if ($ref) {
1061                         $byloc = $ref->qra;
1062                         $byloc = substr($byloc, 0, 4) if $byloc;
1063                 }
1064
1065                 my $spot = $_[1];
1066                 $spot =~ s|/\w{1,4}$||;
1067                 $ref = DXUser::get_current($spot);
1068                 if ($ref) {
1069                         $dxloc = $ref->qra;
1070                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1071                 }
1072                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1073
1074         } else {
1075                 $buf = $self->format_dx_spot(@_);
1076                 $buf .= "\a\a" if $self->{beep};
1077                 $buf =~ s/\%5E/^/g;
1078         }
1079
1080         $self->local_send('X', $buf);
1081 }
1082
1083 sub wwv
1084 {
1085         my $self = shift;
1086         my $line = shift;
1087         my $isolate = shift;
1088         my ($filter, $hops);
1089
1090         return unless $self->{wwv};
1091
1092         if ($self->{wwvfilter}) {
1093                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1094                 return unless $filter;
1095         }
1096
1097         my $buf;
1098         if ($self->{gtk}) {
1099                 $buf = dd(['wwv', @_])
1100         } else {
1101                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1102                 $buf .= "\a\a" if $self->{beep};
1103         }
1104
1105         $self->local_send('V', $buf);
1106 }
1107
1108 sub wcy
1109 {
1110         my $self = shift;
1111         my $line = shift;
1112         my $isolate = shift;
1113         my ($filter, $hops);
1114
1115         return unless $self->{wcy};
1116
1117         if ($self->{wcyfilter}) {
1118                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1119                 return unless $filter;
1120         }
1121
1122         my $buf;
1123         if ($self->{gtk}) {
1124                 $buf = dd(['wcy', @_])
1125         } else {
1126                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1127                 $buf .= "\a\a" if $self->{beep};
1128         }
1129         $self->local_send('Y', $buf);
1130 }
1131
1132 # broadcast debug stuff to all interested parties
1133 sub broadcast_debug
1134 {
1135         my $s = shift;                          # the line to be rebroadcast
1136
1137         foreach my $dxchan (DXChannel::get_all_users) {
1138                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1139                 if ($dxchan->{gtk}) {
1140                         $dxchan->send_later('L', dd(['db', $s]));
1141                 } else {
1142                         $dxchan->send_later('L', $s);
1143                 }
1144         }
1145 }
1146
1147 sub do_entry_stuff
1148 {
1149         my $self = shift;
1150         my $line = shift;
1151         my @out;
1152
1153         if ($self->state eq 'enterbody') {
1154                 my $loc = $self->{loc} || confess "local var gone missing" ;
1155                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1156                         no strict 'refs';
1157                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1158                         $self->func(undef);
1159                         $self->state('prompt');
1160                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1161                         push @out, $self->msg('m10');
1162                         delete $loc->{lines};
1163                         delete $self->{loc};
1164                         $self->func(undef);
1165                         $self->state('prompt');
1166                 } else {
1167                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1168                         # i.e. it ain't and end or abort, therefore store the line
1169                 }
1170         } else {
1171                 confess "Invalid state $self->{state}";
1172         }
1173         return @out;
1174 }
1175
1176 sub store_startup_script
1177 {
1178         my $self = shift;
1179         my $loc = $self->{loc} || confess "local var gone missing" ;
1180         my @out;
1181         my $call = $loc->{call} || confess "callsign gone missing";
1182         confess "lines array gone missing" unless ref $loc->{lines};
1183         my $r = Script::store($call, $loc->{lines});
1184         if (defined $r) {
1185                 if ($r) {
1186                         push @out, $self->msg('m19', $call, $r);
1187                 } else {
1188                         push @out, $self->msg('m20', $call);
1189                 }
1190         } else {
1191                 push @out, "error opening startup script $call $!";
1192         }
1193         return @out;
1194 }
1195
1196 # Import any commands contained in any files in import_cmd directory
1197 #
1198 # If the filename has a recogisable callsign as some delimited part
1199 # of it, then this is the user the command will be run as.
1200 #
1201 sub import_cmd
1202 {
1203         # are there any to do in this directory?
1204         return unless -d $cmdimportdir;
1205         unless (opendir(DIR, $cmdimportdir)) {
1206                 LogDbg('err', "can\'t open $cmdimportdir $!");
1207                 return;
1208         }
1209
1210         my @names = readdir(DIR);
1211         closedir(DIR);
1212         my $name;
1213
1214         return unless @names;
1215
1216         foreach $name (@names) {
1217                 next if $name =~ /^\./;
1218
1219                 my $s = Script->new($name, $cmdimportdir);
1220                 if ($s) {
1221                         LogDbg('DXCommand', "Run import cmd file $name");
1222                         my @cat = split /[^A-Za-z0-9]+/, $name;
1223                         my ($call) = grep {is_callsign(uc $_)} @cat;
1224                         $call ||= $main::mycall;
1225                         $call = uc $call;
1226                         my @out;
1227
1228
1229                         $s->inscript(0);        # switch off script checks
1230
1231                         if ($call eq $main::mycall) {
1232                                 @out = $s->run($main::me, 1);
1233                         } else {
1234                                 my $dxchan = DXChannel::get($call);
1235                             if ($dxchan) {
1236                                         @out = $s->run($dxchan, 1);
1237                                 } else {
1238                                         my $u = DXUser::get($call);
1239                                         if ($u) {
1240                                                 $dxchan = $main::me;
1241                                                 my $old = $dxchan->{call};
1242                                                 my $priv = $dxchan->{priv};
1243                                                 my $user = $dxchan->{user};
1244                                                 $dxchan->{call} = $call;
1245                                                 $dxchan->{priv} = $u->priv;
1246                                                 $dxchan->{user} = $u;
1247                                                 @out = $s->run($dxchan, 1);
1248                                                 $dxchan->{call} = $old;
1249                                                 $dxchan->{priv} = $priv;
1250                                                 $dxchan->{user} = $user;
1251                                         } else {
1252                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1253                                         }
1254                                 }
1255                         }
1256                         $s->erase;
1257                         for (@out) {
1258                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1259                         }
1260                 } else {
1261                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1262                         unlink "$cmdimportdir/$name";
1263                 }
1264         }
1265 }
1266
1267 sub print_find_reply
1268 {
1269         my ($self, $node, $target, $flag, $ms) = @_;
1270         my $sort = $flag == 2 ? "External" : "Local";
1271         $self->send("$sort $target found at $node in $ms ms" );
1272 }
1273
1274 # send the most relevant motd
1275 sub send_motd
1276 {
1277         my $self = shift;
1278         my $motd;
1279
1280         unless ($self->{registered}) {
1281                 $motd = "${main::motd}_nor_$self->{lang}";
1282                 $motd = "${main::motd}_nor" unless -e $motd;
1283         }
1284         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1285         $motd = $main::motd unless $motd && -e $motd;
1286         if ($self->conn->ax25) {
1287                 if ($motd) {
1288                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1289                 } else {
1290                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1291                 }
1292         }
1293         $self->send_file($motd) if -e $motd;
1294 }
1295
1296
1297 # Punt off a long running command into a separate process
1298 #
1299 # This is called from commands to run some potentially long running
1300 # function. The process forks and then runs the function and returns
1301 # the result back to the cmd.
1302 #
1303 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1304 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1305 #       THE CURRENT CONTEXT!!
1306 #
1307 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1308 sub spawn_cmd
1309 {
1310         my $self = shift;
1311         my $line = shift;
1312         my $cmdref = shift;
1313         my $call = $self->{call};
1314         my %args = @_;
1315         my @out;
1316
1317         my $cb = delete $args{cb};
1318         my $prefix = delete $args{prefix};
1319         my $progress = delete $args{progress};
1320         my $args = delete $args{args} || [];
1321         my $t0 = [gettimeofday];
1322
1323         no strict 'refs';
1324
1325         # just behave normally if something has set the "one-shot" _nospawn in the channel
1326         if ($self->{_nospawn}) {
1327                 eval { @out = $cmdref->(@$args); };
1328                 if ($@) {
1329                         DXDebug::dbgprintring(25);
1330                         push @out, DXDebug::shortmess($@);
1331                 }
1332                 return @out;
1333         }
1334
1335         my $fc = DXSubprocess->new;
1336 #       $fc->serializer(\&encode_json);
1337 #       $fc->deserializer(\&decode_json);
1338         $fc->run(
1339                          sub {
1340                                  my $subpro = shift;
1341                                  if (isdbg('progress')) {
1342                                          my $s = qq{line: "$line"};
1343                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1344                                          dbg($s);
1345                                  }
1346                                  eval { @out = $cmdref->(@$args); };
1347                                  if ($@) {
1348                                          DXDebug::dbgprintring(25);
1349                                          push @out, DXDebug::shortmess($@);
1350                                  }
1351                                  return @out;
1352                          },
1353 #                        $args,
1354                          sub {
1355                                  my ($fc, $err, @res) = @_;
1356                                  my $dxchan = DXChannel::get($call);
1357                                  return unless $dxchan;
1358
1359                                  if ($err) {
1360                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1361                                          dbg($s) if isdbg('chan');
1362                                          $dxchan->send($s);
1363                                          return;
1364                                  }
1365                                  if ($cb) {
1366                                          # transform output if required
1367                                          @res = $cb->($dxchan, @res);
1368                                  }
1369                                  if (@res) {
1370                                          if (defined $prefix) {
1371                                                  $dxchan->send(map {"$prefix$_"} @res);
1372                                          } else {
1373                                                  $dxchan->send(@res);
1374                                          }
1375                                  }
1376                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1377                          });
1378
1379         return @out;
1380 }
1381
1382 sub user_count
1383 {
1384         return ($users, $maxusers);
1385 }
1386 1;
1387 __END__