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         # establish slug queue, if required
 159         $self->{sluggedpcs} = [];
 160         $self->{isslugged} = $DXProt::pc92_slug_changes + $DXProt::last_pc92_slug + 5 if $DXProt::pc92_slug_changes;
 161         $self->{isslugged} = 0 if $self->{priv} > 0 || $user->registered || $user->homenode eq $main::mycall;
 162
 163         # send the relevant MOTD
 164         $self->send_motd;
 165
 166         # sort out privilege reduction
 167         $self->{priv} = 0 unless $self->{hostname} eq '127.0.0.1' || $self->{hostname} eq '::1' || $self->conn->{usedpasswd};
 168
 169         # get the filters
 170         my $nossid = $call;
 171         $nossid =~ s/-\d+$//;
 172
 173         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 174                 || Filter::read_in('spots', $nossid, 0)
 175                         || Filter::read_in('spots', 'user_default', 0);
 176         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 177                 || Filter::read_in('wwv', $nossid, 0)
 178                         || Filter::read_in('wwv', 'user_default', 0);
 179         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 180                 || Filter::read_in('wcy', $nossid, 0)
 181                         || Filter::read_in('wcy', 'user_default', 0);
 182         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 183                 || Filter::read_in('ann', $nossid, 0)
 184                         || Filter::read_in('ann', 'user_default', 0) ;
 185         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 186                 || Filter::read_in('rbn', $nossid, 0)
 187                 || Filter::read_in('rbn', 'user_default', 0);
 188
 189         # clean up qra locators
 190         my $qra = $user->qra;
 191         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 192         unless ($qra) {
 193                 my $lat = $user->lat;
 194                 my $long = $user->long;
 195                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 196         }
 197
 198         # decide on echo
 199         my $echo = $user->wantecho;
 200         unless ($echo) {
 201                 $self->send_now('E', "0");
 202                 $self->send($self->msg('echow'));
 203                 $self->conn->echo($echo) if $self->conn->can('echo');
 204         }
 205
 206         $self->tell_login('loginu');
 207         $self->tell_buddies('loginb');
 208
 209         # do we need to send a forward/opernam?
 210         my $lastoper = $user->lastoper || 0;
 211         my $homenode = $user->homenode || "";
 212         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 213                 run_cmd($main::me, "forward/opernam $call");
 214                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 215         }
 216
 217         # run a script send the output to the punter
 218         my $script = new Script(lc $call) || new Script('user_default');
 219         $script->run($self) if $script;
 220
 221         # send cluster info
 222         $self->send($self->run_cmd("show/cluster"));
 223
 224         # send prompts for qth, name and things
 225         $self->send($self->msg('namee1')) if !$user->name;
 226         $self->send($self->msg('qthe1')) if !$user->qth;
 227         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 228         $self->send($self->msg('hnodee1')) if !$user->qth;
 229         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 230
 231         # send out any buddy messages for other people that are online
 232         foreach my $call (@{$user->buddies}) {
 233                 my $ref = Route::User::get($call);
 234                 if ($ref) {
 235                         foreach my $node ($ref->parents) {
 236                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 237                         }
 238                 }
 239         }
 240
 241         $self->lastmsgpoll($main::systime);
 242         $self->prompt;
 243 }
 244
 245 #
 246 # This is the normal command prompt driver
 247 #
 248
 249 sub normal
 250 {
 251         my $self = shift;
 252         my $cmdline = shift;
 253         my @ans;
 254
 255         # save this for them's that need it
 256         my $rawline = $cmdline;
 257
 258         # remove leading and trailing spaces
 259         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 260
 261         if ($self->{state} eq 'page') {
 262                 my $i = $self->{pagelth};
 263                 my $ref = $self->{pagedata};
 264                 my $tot = @$ref;
 265
 266                 # abort if we get a line starting in with a
 267                 if ($cmdline =~ /^a/io) {
 268                         undef $ref;
 269                         $i = 0;
 270                 }
 271
 272                 # send a tranche of data
 273                 while ($i-- > 0 && @$ref) {
 274                         my $line = shift @$ref;
 275                         $line =~ s/\s+$//o;     # why am having to do this?
 276                         $self->send($line);
 277                 }
 278
 279                 # reset state if none or else chuck out an intermediate prompt
 280                 if ($ref && @$ref) {
 281                         $tot -= $self->{pagelth};
 282                         $self->send($self->msg('page', $tot));
 283                 } else {
 284                         $self->state('prompt');
 285                 }
 286         } elsif ($self->{state} eq 'sysop') {
 287                 my $passwd = $self->{user}->passwd;
 288                 if ($passwd) {
 289                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 290                         my @l = @{$self->{passwd}};
 291                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 292                         if ($cmdline =~ /$str/) {
 293                                 $self->{priv} = $self->{user}->priv;
 294                         } else {
 295                                 $self->send($self->msg('sorry'));
 296                         }
 297                 } else {
 298                         $self->send($self->msg('sorry'));
 299                 }
 300                 $self->state('prompt');
 301         } elsif ($self->{state} eq 'passwd') {
 302                 my $passwd = $self->{user}->passwd;
 303                 if ($passwd && $cmdline eq $passwd) {
 304                         $self->send($self->msg('pw1'));
 305                         $self->state('passwd1');
 306                 } else {
 307                         $self->conn->{echo} = $self->conn->{decho};
 308                         delete $self->conn->{decho};
 309                         $self->send($self->msg('sorry'));
 310                         $self->state('prompt');
 311                 }
 312         } elsif ($self->{state} eq 'passwd1') {
 313                 $self->{passwd} = $cmdline;
 314                 $self->send($self->msg('pw2'));
 315                 $self->state('passwd2');
 316         } elsif ($self->{state} eq 'passwd2') {
 317                 if ($cmdline eq $self->{passwd}) {
 318                         $self->{user}->passwd($cmdline);
 319                         $self->send($self->msg('pw3'));
 320                 } else {
 321                         $self->send($self->msg('pw4'));
 322                 }
 323                 $self->conn->{echo} = $self->conn->{decho};
 324                 delete $self->conn->{decho};
 325                 $self->state('prompt');
 326         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 327                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 328                         for (@{$self->{talklist}}) {
 329                                 if ($self->{state} eq 'talk') {
 330                                         $self->send_talks($_,  $self->msg('talkend'));
 331                                 } else {
 332                                         $self->local_send('C', $self->msg('chatend', $_));
 333                                 }
 334                         }
 335                         $self->state('prompt');
 336                         delete $self->{talklist};
 337                 } elsif ($cmdline =~ m|^/+\w+|) {
 338                         $cmdline =~ s|^/||;
 339                         my $sendit = $cmdline =~ s|^/+||;
 340                         my @in = $self->run_cmd($cmdline);
 341                         $self->send_ans(@in);
 342                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 343                                 foreach my $l (@in) {
 344                                         my @bad;
 345                                         if (@bad = BadWords::check($l)) {
 346                                                 $self->badcount(($self->badcount||0) + @bad);
 347                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 348                                         } else {
 349                                                 for (@{$self->{talklist}}) {
 350                                                         if ($self->{state} eq 'talk') {
 351                                                                 $self->send_talks($_, $l);
 352                                                         } else {
 353                                                                 send_chats($self, $_, $l)
 354                                                         }
 355                                                 }
 356                                         }
 357                                 }
 358                         }
 359                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 360                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 361                         # send what has been said to whoever is in this person's talk list
 362                         my @bad;
 363                         if (@bad = BadWords::check($cmdline)) {
 364                                 $self->badcount(($self->badcount||0) + @bad);
 365                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 366                         } else {
 367                                 for (@{$self->{talklist}}) {
 368                                         if ($self->{state} eq 'talk') {
 369                                                 $self->send_talks($_, $rawline);
 370                                         } else {
 371                                                 send_chats($self, $_, $rawline);
 372                                         }
 373                                 }
 374                         }
 375                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 376                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 377                 } else {
 378                         # for safety
 379                         $self->state('prompt');
 380                 }
 381         } elsif (my $func = $self->{func}) {
 382                 no strict 'refs';
 383                 my @ans;
 384                 if (ref $self->{edit}) {
 385                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 386                 } else {
 387                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 388                 }
 389                 if ($@) {
 390                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 391                         delete $self->{func};
 392                         $self->state('prompt');
 393                         undef $@;
 394                 }
 395                 $self->send_ans(@ans);
 396         } else {
 397                 $self->send_ans(run_cmd($self, $cmdline));
 398         }
 399
 400         # check for excessive swearing
 401         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 402                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 403                 $self->disconnect;
 404                 return;
 405         }
 406
 407         # send a prompt only if we are in a prompt state
 408         $self->prompt() if $self->{state} =~ /^prompt/o;
 409 }
 410
 411 # send out the talk messages taking into account vias and connectivity
 412 sub send_talks
 413 {
 414         my ($self, $ent, $line) = @_;
 415
 416         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 417         $to = $ent unless $to;
 418         my $call = $via && $via ne '*' ? $via : $to;
 419         my $clref = Route::get($call);
 420         my $dxchan = $clref->dxchan if $clref;
 421         if ($dxchan) {
 422                 $dxchan->talk($self->{call}, $to, undef, $line);
 423         } else {
 424                 $self->send($self->msg('disc2', $via ? $via : $to));
 425                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 426                 if (@l) {
 427                         $self->{talklist} = \@l;
 428                 } else {
 429                         delete $self->{talklist};
 430                         $self->state('prompt');
 431                 }
 432         }
 433 }
 434
 435 sub send_chats
 436 {
 437         my $self = shift;
 438         my $target = shift;
 439         my $text = shift;
 440
 441         my $msgid = DXProt::nextchatmsgid();
 442         $text = "#$msgid $text";
 443         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 444 }
 445
 446 sub special_prompt
 447 {
 448         my $self = shift;
 449         my $prompt = shift;
 450         my @call;
 451         for (@{$self->{talklist}}) {
 452                 my ($to, $via) = /(\S+)>(\S+)/;
 453                 $to = $_ unless $to;
 454                 push @call, $to;
 455         }
 456         return $self->msg($prompt, join(',', @call));
 457 }
 458
 459 sub talk_prompt
 460 {
 461         my $self = shift;
 462         return $self->special_prompt('talkprompt');
 463 }
 464
 465 sub chat_prompt
 466 {
 467         my $self = shift;
 468         return $self->special_prompt('chatprompt');
 469 }
 470
 471 #
 472 # send a load of stuff to a command user with page prompting
 473 # and stuff
 474 #
 475
 476 sub send_ans
 477 {
 478         my $self = shift;
 479
 480         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 481                 my $i;
 482                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 483                         my $line = shift @_;
 484                         $line =~ s/\s+$//o;     # why am having to do this?
 485                         $self->send($line);
 486                 }
 487                 $self->{pagedata} =  [ @_ ];
 488                 $self->state('page');
 489                 $self->send($self->msg('page', scalar @_));
 490         } else {
 491                 for (@_) {
 492                         if (defined $_) {
 493                                 $self->send($_);
 494                         } else {
 495                                 $self->send('');
 496                         }
 497                 }
 498         }
 499 }
 500
 501 #
 502 # this is the thing that preps for running the command, it is done like this for the
 503 # benefit of remote command execution
 504 #
 505
 506 sub run_cmd
 507 {
 508         my $self = shift;
 509         my $user = $self->{user};
 510         my $call = $self->{call};
 511         my $cmdline = shift;
 512         my @ans;
 513
 514         return () if length $cmdline == 0;
 515
 516         # split the command line up into parts, the first part is the command
 517         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 518         $args = "" unless defined $args;
 519
 520         if ($cmd) {
 521
 522                 # check cmd
 523                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 524                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 525                         return $self->_error_out('e1');
 526                 }
 527
 528                 # strip out // on command only
 529                 $cmd =~ s|//|/|g;
 530
 531                 my ($path, $fcmd);
 532
 533                 dbg("cmd: $cmd") if isdbg('command');
 534
 535                 # alias it if possible
 536                 my $acmd = CmdAlias::get_cmd($cmd);
 537                 if ($acmd) {
 538                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 539                         $args = "" unless defined $args;
 540                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 541                 }
 542
 543                 # first expand out the entry to a command
 544                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 545                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 546
 547                 if ($path && $cmd) {
 548                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 549
 550                         my $package = find_cmd_name($path, $fcmd);
 551                         return ($@) if $@;
 552
 553                         if ($package && $self->can("${package}::handle")) {
 554                                 no strict 'refs';
 555                                 dbg("cmd: package $package") if isdbg('command');
 556                                 my $t0 = [gettimeofday];
 557                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 558                                 if ($@) {
 559                                         DXDebug::dbgprintring(25);
 560                                         return (DXDebug::shortmess($@));
 561                                 }
 562                                 if (isdbg('progress')) {
 563                                         my $msecs = _diffms($t0);
 564                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 565                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 566                                 }
 567                         } else {
 568                                 dbg("cmd: $package not present") if isdbg('command');
 569                                 return $self->_error_out('e1');
 570                         }
 571                 } else {
 572                         dbg("cmd: $cmd not found") if isdbg('command');
 573                         return $self->_error_out('e1');
 574                 }
 575         }
 576
 577         my $ok = shift @ans;
 578         if ($ok) {
 579                 delete $self->{errors};
 580         } else {
 581                 if (++$self->{errors} > $DXChannel::maxerrors) {
 582                         $self->send($self->msg('e26'));
 583                         $self->disconnect;
 584                         return ();
 585                 }
 586         }
 587         return map {s/([^\s])\s+$/$1/; $_} @ans;
 588 }
 589
 590 #
 591 # This is called from inside the main cluster processing loop and is used
 592 # for despatching commands that are doing some long processing job
 593 #
 594 sub process
 595 {
 596         my $t = time;
 597         my @dxchan = DXChannel::get_all();
 598         my $dxchan;
 599
 600         $users = 0;
 601         foreach $dxchan (@dxchan) {
 602                 next unless $dxchan->is_user;
 603
 604                 # send a outstanding message prompt if required
 605                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 606                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 607                         $dxchan->lastmsgpoll($t);
 608                 }
 609
 610                 # send a prompt if no activity out on this channel
 611                 if ($t >= $dxchan->t + $main::user_interval) {
 612                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 613                         $dxchan->t($t);
 614                 }
 615                 ++$users;
 616                 $maxusers = $users if $users > $maxusers;
 617
 618                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 619                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 620                                 if ($ref->[0] == 61) {
 621                                         Spot::add(@{$ref->[2]});
 622                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 623                                 }
 624                         }
 625
 626                         $dxchan->{isslugged} = 0;
 627                         $dxchan->{sluggedpcs} = [];
 628                 }
 629         }
 630
 631         import_cmd();
 632 }
 633
 634 #
 635 # finish up a user context
 636 #
 637 sub disconnect
 638 {
 639         my $self = shift;
 640         my $call = $self->call;
 641
 642         return if $self->{disconnecting}++;
 643
 644         delete $self->{senddbg};
 645
 646         my $uref = Route::User::get($call);
 647         my @rout;
 648         if ($uref) {
 649 #               @rout = $main::routeroot->del_user($uref);
 650                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 651
 652                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 653
 654                 # issue a pc17 to everybody interested
 655                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 656                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 657         } else {
 658                 confess "trying to disconnect a non existant user $call";
 659         }
 660
 661         # I was the last node visited
 662     $self->user->node($main::mycall);
 663
 664         # send info to all logged in thingies
 665         $self->tell_login('logoutu');
 666         $self->tell_buddies('logoutb');
 667
 668         LogDbg('DXCommand', "$call disconnected");
 669
 670         $self->SUPER::disconnect;
 671 }
 672
 673 #
 674 # short cut to output a prompt
 675 #
 676
 677 sub prompt
 678 {
 679         my $self = shift;
 680
 681         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 682
 683         my $call = $self->call;
 684         my $date = cldate($main::systime);
 685         my $time = ztime($main::systime);
 686         my $prompt = $self->{prompt} || $self->msg('pr');
 687
 688         $call = "($call)" unless $self->here;
 689         $prompt =~ s/\%C/$call/g;
 690         $prompt =~ s/\%D/$date/g;
 691         $prompt =~ s/\%T/$time/g;
 692         $prompt =~ s/\%M/$main::mycall/g;
 693
 694         $self->send($prompt);
 695 }
 696
 697 # broadcast a message to all users [except those mentioned after buffer]
 698 sub broadcast
 699 {
 700         my $pkg = shift;                        # ignored
 701         my $s = shift;                          # the line to be rebroadcast
 702
 703     foreach my $dxchan (DXChannel::get_all()) {
 704                 next unless $dxchan->is_user; # only interested in user channels
 705                 next if grep $dxchan == $_, @_;
 706                 $dxchan->send($s);                      # send it
 707         }
 708 }
 709
 710 # gimme all the users
 711 sub get_all
 712 {
 713         goto &DXChannel::get_all_users;
 714 }
 715
 716 # run a script for this user
 717 sub run_script
 718 {
 719         my $self = shift;
 720         my $silent = shift || 0;
 721
 722 }
 723
 724 #
 725 # search for the command in the cache of short->long form commands
 726 #
 727
 728 sub search
 729 {
 730         my ($path, $short_cmd, $suffix) = @_;
 731         my ($apath, $acmd);
 732
 733         # commands are lower case
 734         $short_cmd = lc $short_cmd;
 735         dbg("command: $path $short_cmd\n") if isdbg('command');
 736
 737         # do some checking for funny characters
 738         return () if $short_cmd =~ /\/$/;
 739
 740         # return immediately if we have it
 741         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 742         if ($apath && $acmd) {
 743                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 744                 return ($apath, $acmd);
 745         }
 746
 747         # if not guess
 748         my @parts = split '/', $short_cmd;
 749         my $dirfn;
 750         my $curdir = $path;
 751
 752         while (my $p = shift @parts) {
 753                 opendir(D, $curdir) or confess "can't open $curdir $!";
 754                 my @ls = readdir D;
 755                 closedir D;
 756
 757                 # if this isn't the last part
 758                 if (@parts) {
 759                         my $found;
 760                         foreach my $l (sort @ls) {
 761                                 next if $l =~ /^\./;
 762                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 763                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 764                                         $dirfn .= "$l/";
 765                                         $curdir .= "/$l";
 766                                         $found++;
 767                                         last;
 768                                 }
 769                         }
 770                         # only proceed if we find the directory asked for
 771                         return () unless $found;
 772                 } else {
 773                         foreach my $l (sort @ls) {
 774                                 next if $l =~ /^\./;
 775                                 next unless $l =~ /\.$suffix$/;
 776                                 if ($p eq substr($l, 0, length $p)) {
 777                                         $l =~ s/\.$suffix$//;
 778                                         $dirfn = "" unless $dirfn;
 779                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 780                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 781                                         return ($path, "$dirfn$l");
 782                                 }
 783                         }
 784                 }
 785         }
 786
 787         return ();
 788 }
 789
 790 # clear the command name cache
 791 sub clear_cmd_cache
 792 {
 793         no strict 'refs';
 794
 795         for my $k (keys %Cache) {
 796                 unless ($k =~ /cmd_cache/) {
 797                         dbg("Undefining cmd $k") if isdbg('command');
 798                         undef $DXCommandmode::{"${k}::"};
 799                 }
 800         }
 801         %cmd_cache = ();
 802         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 803 }
 804
 805 #
 806 # the persistant execution of things from the command directories
 807 #
 808 #
 809 # This allows perl programs to call functions dynamically
 810 #
 811 # This has been nicked directly from the perlembed pages
 812 #
 813 #require Devel::Symdump;
 814
 815 sub valid_package_name {
 816         my $string = shift;
 817         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 818
 819         $string =~ s|/|_|g;
 820         return "cmd_$string";
 821 }
 822
 823 #
 824 # this bit of magic finds a command in the offered directory
 825 sub find_cmd_name {
 826         my $path = shift;
 827         my $cmdname = shift;
 828         my $package = valid_package_name($cmdname);
 829         my $filename = "$path/$cmdname.pl";
 830         my $mtime = -M $filename;
 831
 832         # return if we can't find it
 833         $errstr = undef;
 834         unless (defined $mtime) {
 835                 $errstr = DXM::msg('e1');
 836                 return undef;
 837         }
 838
 839         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 840                 #we have compiled this subroutine already,
 841                 #it has not been updated on disk, nothing left to do
 842                 #print STDERR "already compiled $package->handler\n";
 843                 dbg("find_cmd_name: $package cached") if isdbg('command');
 844         } else {
 845
 846                 my $sub = readfilestr($filename);
 847                 unless ($sub) {
 848                         $errstr = "Syserr: can't open '$filename' $!";
 849                         return undef;
 850                 };
 851
 852                 #wrap the code into a subroutine inside our unique package
 853                 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}; );
 854
 855
 856                 if ($sub =~ m|\s*sub\s+handle\n|) {
 857                         $eval .= $sub;
 858                 } else {
 859                         $eval .= qq(sub handle { $sub });
 860                 }
 861
 862                 if (isdbg('eval')) {
 863                         my @list = split /\n/, $eval;
 864                         my $line;
 865                         for (@list) {
 866                                 dbg($_ . "\n") if isdbg('eval');
 867                         }
 868                 }
 869
 870                 # get rid of any existing sub and try to compile the new one
 871                 no strict 'refs';
 872
 873                 if (exists $Cache{$package}) {
 874                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 875                         undef $DXCommandmode::{"${package}::"};
 876                         delete $Cache{$package};
 877                 } else {
 878                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 879                 }
 880
 881                 eval $eval;
 882
 883                 $Cache{$package} = {mtime => $mtime } unless $@;
 884         }
 885
 886         return "DXCommandmode::$package";
 887 }
 888
 889 sub send
 890 {
 891         my $self = shift;
 892         if ($self->{gtk}) {
 893                 for (@_) {
 894                         $self->SUPER::send(dd(['cmd',$_]));
 895                 }
 896         } else {
 897                 $self->SUPER::send(@_);
 898         }
 899 }
 900
 901 sub local_send
 902 {
 903         my ($self, $let, $buf) = @_;
 904         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 905                 if ($self->{enhanced}) {
 906                         $self->send_later($let, $buf);
 907                 } else {
 908                         $self->send($buf);
 909                 }
 910         } else {
 911                 $self->delay($buf);
 912         }
 913 }
 914
 915 # send a talk message here
 916 sub talk
 917 {
 918         my ($self, $from, $to, $via, $line, $onode) = @_;
 919         $line =~ s/\\5E/\^/g;
 920         if ($self->{talk}) {
 921                 if ($self->{gtk}) {
 922                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 923                 } else {
 924                         $self->local_send('T', "$to de $from: $line");
 925                 }
 926         }
 927         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 928         # send a 'not here' message if required
 929         unless ($self->{here} && $from ne $to) {
 930                 my $key = "$to$from";
 931                 unless (exists $nothereslug{$key}) {
 932                         my ($ref, $dxchan);
 933                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 934                                 my $name = $self->user->name || $to;
 935                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 936                                 $nothereslug{$key} = $main::systime;
 937                                 $dxchan->talk($to, $from, undef, $s);
 938                         }
 939                 }
 940         }
 941 }
 942
 943 # send an announce
 944 sub announce
 945 {
 946         my $self = shift;
 947         my $line = shift;
 948         my $isolate = shift;
 949         my $to = shift;
 950         my $target = shift;
 951         my $text = shift;
 952         my ($filter, $hops);
 953
 954         if (!$self->{ann_talk} && $to ne $self->{call}) {
 955                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 956                 return if $call;
 957         }
 958
 959         if ($self->{annfilter}) {
 960                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 961                 return unless $filter;
 962         }
 963
 964         unless ($self->{ann}) {
 965                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 966         }
 967         return if $target eq 'SYSOP' && $self->{priv} < 5;
 968         my $buf;
 969         if ($self->{gtk}) {
 970                 $buf = dd(['ann', $to, $target, $text, @_])
 971         } else {
 972                 $buf = "$to$target de $_[0]: $text";
 973                 #$buf =~ s/\%5E/^/g;
 974                 $buf .= "\a\a" if $self->{beep};
 975         }
 976         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 977 }
 978
 979 # send a chat
 980 sub chat
 981 {
 982         my $self = shift;
 983         my $line = shift;
 984         my $isolate = shift;
 985         my $target = shift;
 986         my $to = shift;
 987         my $text = shift;
 988         my ($filter, $hops);
 989
 990         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
 991
 992         $text =~ s/^\#\d+ //;
 993         my $buf;
 994         if ($self->{gtk}) {
 995                 $buf = dd(['chat', $to, $target, $text, @_])
 996         } else {
 997                 $buf = "$target de $_[0]: $text";
 998                 #$buf =~ s/\%5E/^/g;
 999                 $buf .= "\a\a" if $self->{beep};
1000         }
1001         $self->local_send('C', $buf);
1002 }
1003
1004 sub format_dx_spot
1005 {
1006         my $self = shift;
1007
1008         my $t = ztime($_[2]);
1009         my $loc = '';
1010         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1011         #       --$clth if $self->{consort} eq 'local';
1012
1013         my $comment = substr (($_[3] || ''), 0, $clth);
1014         $comment =~ s/\t/ /g;
1015
1016         $comment .= ' ' x ($clth - (length($comment)));
1017
1018     if ($self->{user}->wantgrid) {
1019                 my $ref = DXUser::get_current($_[1]);
1020                 if ($ref && $ref->qra) {
1021                         my $cloc = ' ' . substr($ref->qra, 0, 4);
1022                         $comment = substr $comment, 0,  ($clth - (length($comment)+length($cloc)));
1023                         $comment .= $cloc;
1024                 }
1025                 my $origin = $_[4];
1026                 $origin =~ s/-#$//;                     # sigh......
1027                 $ref = DXUser::get_current($origin);
1028                 if ($ref && $ref->qra) {
1029                         $loc = ' ' . substr($ref->qra, 0, 4);
1030                 }
1031         } elsif ($self->{user}->wantdxitu) {
1032                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
1033                 $comment = substr($comment, 0,  $clth-3) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
1034         } elsif ($self->{user}->wantdxcq) {
1035                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
1036                 $comment = substr($comment, 0, $clth-3) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
1037         } elsif ($self->{user}->wantusstate) {
1038                 $loc = ' ' . $_[13] if $_[13];
1039                 $comment = substr($comment, 0,  $clth-3) . ' ' . $_[12] if $_[12];
1040         }
1041
1042         return sprintf "DX de %-9.9s%9.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
1043 }
1044
1045
1046 # send a dx spot
1047 sub dx_spot
1048 {
1049         my $self = shift;
1050         my $line = shift;
1051         my $isolate = shift;
1052         return unless $self->{dx};
1053
1054         my ($filter, $hops);
1055
1056         if ($self->{spotsfilter}) {
1057                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1058                 return unless $filter;
1059         }
1060
1061         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1062
1063         my $buf;
1064         if ($self->{ve7cc}) {
1065                 $buf = VE7CC::dx_spot($self, @_);
1066         } elsif ($self->{gtk}) {
1067                 my ($dxloc, $byloc);
1068
1069                 my $ref = DXUser::get_current($_[4]);
1070                 if ($ref) {
1071                         $byloc = $ref->qra;
1072                         $byloc = substr($byloc, 0, 4) if $byloc;
1073                 }
1074
1075                 my $spot = $_[1];
1076                 $spot =~ s|/\w{1,4}$||;
1077                 $ref = DXUser::get_current($spot);
1078                 if ($ref) {
1079                         $dxloc = $ref->qra;
1080                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1081                 }
1082                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1083
1084         } else {
1085                 $buf = $self->format_dx_spot(@_);
1086                 $buf .= "\a\a" if $self->{beep};
1087                 #$buf =~ s/\%5E/^/g;
1088         }
1089
1090         $self->local_send('X', $buf);
1091 }
1092
1093 sub wwv
1094 {
1095         my $self = shift;
1096         my $line = shift;
1097         my $isolate = shift;
1098         my ($filter, $hops);
1099
1100         return unless $self->{wwv};
1101
1102         if ($self->{wwvfilter}) {
1103                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1104                 return unless $filter;
1105         }
1106
1107         my $buf;
1108         if ($self->{gtk}) {
1109                 $buf = dd(['wwv', @_])
1110         } else {
1111                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1112                 $buf .= "\a\a" if $self->{beep};
1113         }
1114
1115         $self->local_send('V', $buf);
1116 }
1117
1118 sub wcy
1119 {
1120         my $self = shift;
1121         my $line = shift;
1122         my $isolate = shift;
1123         my ($filter, $hops);
1124
1125         return unless $self->{wcy};
1126
1127         if ($self->{wcyfilter}) {
1128                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1129                 return unless $filter;
1130         }
1131
1132         my $buf;
1133         if ($self->{gtk}) {
1134                 $buf = dd(['wcy', @_])
1135         } else {
1136                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1137                 $buf .= "\a\a" if $self->{beep};
1138         }
1139         $self->local_send('Y', $buf);
1140 }
1141
1142 # broadcast debug stuff to all interested parties
1143 sub broadcast_debug
1144 {
1145         my $s = shift;                          # the line to be rebroadcast
1146
1147         foreach my $dxchan (DXChannel::get_all_users) {
1148                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1149                 if ($dxchan->{gtk}) {
1150                         $dxchan->send_later('L', dd(['db', $s]));
1151                 } else {
1152                         $dxchan->send_later('L', $s);
1153                 }
1154         }
1155 }
1156
1157 sub do_entry_stuff
1158 {
1159         my $self = shift;
1160         my $line = shift;
1161         my @out;
1162
1163         if ($self->state eq 'enterbody') {
1164                 my $loc = $self->{loc} || confess "local var gone missing" ;
1165                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1166                         no strict 'refs';
1167                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1168                         $self->func(undef);
1169                         $self->state('prompt');
1170                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1171                         push @out, $self->msg('m10');
1172                         delete $loc->{lines};
1173                         delete $self->{loc};
1174                         $self->func(undef);
1175                         $self->state('prompt');
1176                 } else {
1177                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1178                         # i.e. it ain't and end or abort, therefore store the line
1179                 }
1180         } else {
1181                 confess "Invalid state $self->{state}";
1182         }
1183         return @out;
1184 }
1185
1186 sub store_startup_script
1187 {
1188         my $self = shift;
1189         my $loc = $self->{loc} || confess "local var gone missing" ;
1190         my @out;
1191         my $call = $loc->{call} || confess "callsign gone missing";
1192         confess "lines array gone missing" unless ref $loc->{lines};
1193         my $r = Script::store($call, $loc->{lines});
1194         if (defined $r) {
1195                 if ($r) {
1196                         push @out, $self->msg('m19', $call, $r);
1197                 } else {
1198                         push @out, $self->msg('m20', $call);
1199                 }
1200         } else {
1201                 push @out, "error opening startup script $call $!";
1202         }
1203         return @out;
1204 }
1205
1206 # Import any commands contained in any files in import_cmd directory
1207 #
1208 # If the filename has a recogisable callsign as some delimited part
1209 # of it, then this is the user the command will be run as.
1210 #
1211 sub import_cmd
1212 {
1213         # are there any to do in this directory?
1214         return unless -d $cmdimportdir;
1215         unless (opendir(DIR, $cmdimportdir)) {
1216                 LogDbg('err', "can\'t open $cmdimportdir $!");
1217                 return;
1218         }
1219
1220         my @names = readdir(DIR);
1221         closedir(DIR);
1222         my $name;
1223
1224         return unless @names;
1225
1226         foreach $name (@names) {
1227                 next if $name =~ /^\./;
1228
1229                 my $s = Script->new($name, $cmdimportdir);
1230                 if ($s) {
1231                         LogDbg('DXCommand', "Run import cmd file $name");
1232                         my @cat = split /[^A-Za-z0-9]+/, $name;
1233                         my ($call) = grep {is_callsign(uc $_)} @cat;
1234                         $call ||= $main::mycall;
1235                         $call = uc $call;
1236                         my @out;
1237
1238
1239                         $s->inscript(0);        # switch off script checks
1240
1241                         if ($call eq $main::mycall) {
1242                                 @out = $s->run($main::me, 1);
1243                         } else {
1244                                 my $dxchan = DXChannel::get($call);
1245                             if ($dxchan) {
1246                                         @out = $s->run($dxchan, 1);
1247                                 } else {
1248                                         my $u = DXUser::get($call);
1249                                         if ($u) {
1250                                                 $dxchan = $main::me;
1251                                                 my $old = $dxchan->{call};
1252                                                 my $priv = $dxchan->{priv};
1253                                                 my $user = $dxchan->{user};
1254                                                 $dxchan->{call} = $call;
1255                                                 $dxchan->{priv} = $u->priv;
1256                                                 $dxchan->{user} = $u;
1257                                                 @out = $s->run($dxchan, 1);
1258                                                 $dxchan->{call} = $old;
1259                                                 $dxchan->{priv} = $priv;
1260                                                 $dxchan->{user} = $user;
1261                                         } else {
1262                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1263                                         }
1264                                 }
1265                         }
1266                         $s->erase;
1267                         for (@out) {
1268                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1269                         }
1270                 } else {
1271                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1272                         unlink "$cmdimportdir/$name";
1273                 }
1274         }
1275 }
1276
1277 sub print_find_reply
1278 {
1279         my ($self, $node, $target, $flag, $ms) = @_;
1280         my $sort = $flag == 2 ? "External" : "Local";
1281         $self->send("$sort $target found at $node in $ms ms" );
1282 }
1283
1284 # send the most relevant motd
1285 sub send_motd
1286 {
1287         my $self = shift;
1288         my $motd;
1289
1290         unless ($self->{registered}) {
1291                 $motd = "${main::motd}_nor_$self->{lang}";
1292                 $motd = "${main::motd}_nor" unless -e $motd;
1293         }
1294         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1295         $motd = $main::motd unless $motd && -e $motd;
1296         if ($self->conn->ax25) {
1297                 if ($motd) {
1298                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1299                 } else {
1300                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1301                 }
1302         }
1303         $self->send_file($motd) if -e $motd;
1304 }
1305
1306
1307 # Punt off a long running command into a separate process
1308 #
1309 # This is called from commands to run some potentially long running
1310 # function. The process forks and then runs the function and returns
1311 # the result back to the cmd.
1312 #
1313 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1314 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1315 #       THE CURRENT CONTEXT!!
1316 #
1317 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1318 sub spawn_cmd
1319 {
1320         my $self = shift;
1321         my $line = shift;
1322         my $cmdref = shift;
1323         my $call = $self->{call};
1324         my %args = @_;
1325         my @out;
1326
1327         my $cb = delete $args{cb};
1328         my $prefix = delete $args{prefix};
1329         my $progress = delete $args{progress};
1330         my $args = delete $args{args} || [];
1331         my $t0 = [gettimeofday];
1332
1333         no strict 'refs';
1334
1335         # just behave normally if something has set the "one-shot" _nospawn in the channel
1336         if ($self->{_nospawn}) {
1337                 eval { @out = $cmdref->(@$args); };
1338                 if ($@) {
1339                         DXDebug::dbgprintring(25);
1340                         push @out, DXDebug::shortmess($@);
1341                 }
1342                 return @out;
1343         }
1344
1345         my $fc = DXSubprocess->new;
1346 #       $fc->serializer(\&encode_json);
1347 #       $fc->deserializer(\&decode_json);
1348         $fc->run(
1349                          sub {
1350                                  my $subpro = shift;
1351                                  if (isdbg('progress')) {
1352                                          my $s = qq{$call line: "$line"};
1353                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1354                                          dbg($s);
1355                                  }
1356                                  eval {
1357                                          ++$self->{_in_sub_process};
1358                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1359                                          @out = $cmdref->(@$args);
1360                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1361                                  };
1362                                  if ($@) {
1363                                          DXDebug::dbgprintring(25);
1364                                          push @out, DXDebug::shortmess($@);
1365                                  }
1366                                  return @out;
1367                          },
1368 #                        $args,
1369                          sub {
1370                                  my ($fc, $err, @res) = @_;
1371                                  my $dxchan = DXChannel::get($call);
1372                                  return unless $dxchan;
1373
1374                                  if ($err) {
1375                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1376                                          dbg($s) if isdbg('chan');
1377                                          $dxchan->send($s);
1378                                          return;
1379                                  }
1380                                  if ($cb) {
1381                                          # transform output if required
1382                                          @res = $cb->($dxchan, @res);
1383                                  }
1384                                  if (@res) {
1385                                          if (defined $prefix) {
1386                                                  $dxchan->send(map {"$prefix$_"} @res);
1387                                          } else {
1388                                                  $dxchan->send(@res);
1389                                          }
1390                                  }
1391                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1392                          });
1393
1394         return @out;
1395 }
1396
1397 sub user_count
1398 {
1399         return ($users, $maxusers);
1400 }
1401 1;
1402 __END__