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 use DXCIDR;
  49
  50 use strict;
  51 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
  52         $maxbadcount $msgpolltime $default_pagelth $cmdimportdir $users $maxusers);
  53
  54 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  55 %cmd_cache = ();                                # cache of short names
  56 $errstr = ();                                   # error string from eval
  57 %aliases = ();                                  # aliases for (parts of) commands
  58 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  59 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  60 $msgpolltime = 3600;                    # the time between polls for new messages
  61 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  62                                           # this does not exist as default, you need to create it manually
  63 $users = 0;                                       # no of users on this node currently
  64 $maxusers = 0;                            # max no users on this node for this run
  65
  66 #
  67 # obtain a new connection this is derived from dxchannel
  68 #
  69
  70 sub new
  71 {
  72         my $self = DXChannel::alloc(@_);
  73
  74         # routing, this must go out here to prevent race condx
  75         my $pkg = shift;
  76         my $call = shift;
  77 #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  78         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $self->hostname], );
  79
  80         # ALWAYS output the user
  81         my $ref = Route::User::get($call);
  82         if ($ref) {
  83                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  84                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
  85         }
  86
  87         return $self;
  88 }
  89
  90 # this is how a a connection starts, you get a hello message and the motd with
  91 # possibly some other messages asking you to set various things up if you are
  92 # new (or nearly new and slacking) user.
  93
  94 sub start
  95 {
  96         my ($self, $line, $sort) = @_;
  97         my $user = $self->{user};
  98         my $call = $self->{call};
  99         my $name = $user->{name};
 100
 101         # log it
 102         my $host = $self->{conn}->peerhost;
 103         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
 104         $host ||= "unknown";
 105         $self->{hostname} = $host;
 106
 107         $self->{name} = $name ? $name : $call;
 108         $self->send($self->msg('l2',$self->{name}));
 109         $self->send("Capabilities: ve7cc rbn");
 110         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 111         $self->{priv} = $user->priv || 0;
 112         $self->{lang} = $user->lang || $main::lang || 'en';
 113         my $pagelth = $user->pagelth;
 114         $pagelth = $default_pagelth unless defined $pagelth;
 115         $self->{pagelth} = $pagelth;
 116         ($self->{width}) = $line =~ /\s*width=(\d+)/; $line =~ s/\s*width=\d+//;
 117         $self->{enhanced} = $line =~ /\s+enhanced/; $line =~ s/\s*enhanced//;
 118         if ($line =~ /host=/) {
 119                 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
 120                 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
 121                 unless ($h) {
 122                         ($h) = $line =~ /host=([\da..fA..F:]+)/;
 123                         $line =~ s/\s*host=[\da..fA..F:]+// if $h;
 124                 }
 125                 $self->{hostname} = $h if $h;
 126         }
 127         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 128         $self->{consort} = $line;       # save the connection type
 129
 130         LogDbg('DXCommand', "$call connected from $self->{hostname} cols $self->{width}" . ($self->{enhanced}?" enhanced":''));
 131
 132         # set some necessary flags on the user if they are connecting
 133         $self->{beep} = $user->wantbeep;
 134         $self->{ann} = $user->wantann;
 135         $self->{wwv} = $user->wantwwv;
 136         $self->{wcy} = $user->wantwcy;
 137         $self->{talk} = $user->wanttalk;
 138         $self->{wx} = $user->wantwx;
 139         $self->{dx} = $user->wantdx;
 140         $self->{logininfo} = $user->wantlogininfo;
 141         $self->{ann_talk} = $user->wantann_talk;
 142         $self->{wantrbn} = $user->wantrbn;
 143         $self->{here} = 1;
 144         $self->{prompt} = $user->prompt if $user->prompt;
 145         $self->{lastmsgpoll} = 0;
 146         $self->{rbnseeme} = $user->rbnseeme;
 147         RBN::add_seeme($call) if $self->{rbnseeme};
 148
 149         # sort out new dx spot stuff
 150         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 151         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 152         $user->wantusstate(0) unless defined $user->{wantusstate};
 153
 154         # sort out registration
 155         if ($main::reqreg == 2) {
 156                 $self->{registered} = !$user->registered;
 157         } else {
 158                 $self->{registered} = $user->registered;
 159         }
 160
 161         # establish slug queue, if required
 162         $self->{sluggedpcs} = [];
 163         $self->{isslugged} = $DXProt::pc92_slug_changes + $DXProt::last_pc92_slug + 5 if $DXProt::pc92_slug_changes;
 164         $self->{isslugged} = 0 if $self->{priv} || $user->registered || ($user->homenode && $user->homenode eq $main::mycall);
 165
 166         # send the relevant MOTD
 167         $self->send_motd;
 168
 169         # sort out privilege reduction
 170         $self->{priv} = 0 unless $self->{hostname} eq '127.0.0.1' || $self->conn->peerhost eq '127.0.0.1' || $self->{hostname} eq '::1' || $self->conn->{usedpasswd};
 171
 172         # get the filters
 173         my $nossid = $call;
 174         $nossid =~ s/-\d+$//;
 175
 176         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 177                 || Filter::read_in('spots', $nossid, 0)
 178                         || Filter::read_in('spots', 'user_default', 0);
 179         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 180                 || Filter::read_in('wwv', $nossid, 0)
 181                         || Filter::read_in('wwv', 'user_default', 0);
 182         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 183                 || Filter::read_in('wcy', $nossid, 0)
 184                         || Filter::read_in('wcy', 'user_default', 0);
 185         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 186                 || Filter::read_in('ann', $nossid, 0)
 187                         || Filter::read_in('ann', 'user_default', 0) ;
 188         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 189                 || Filter::read_in('rbn', $nossid, 0)
 190                 || Filter::read_in('rbn', 'user_default', 0);
 191
 192         # clean up qra locators
 193         my $qra = $user->qra;
 194         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 195         unless ($qra) {
 196                 my $lat = $user->lat;
 197                 my $long = $user->long;
 198                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 199         }
 200
 201         # decide on echo
 202         my $echo = $user->wantecho;
 203         unless ($echo) {
 204                 $self->send_now('E', "0");
 205                 $self->send($self->msg('echow'));
 206                 $self->conn->echo($echo) if $self->conn->can('echo');
 207         }
 208
 209         $self->tell_login('loginu');
 210         $self->tell_buddies('loginb');
 211
 212         # is this a bad ip address?
 213         if (is_ipaddr($self->{hostname})) {
 214                 $self->{badip} = DXCIDR::find($self->{hostname});
 215         }
 216
 217         # do we need to send a forward/opernam?
 218         my $lastoper = $user->lastoper || 0;
 219         my $homenode = $user->homenode || "";
 220         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 221                 run_cmd($main::me, "forward/opernam $call");
 222                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 223         }
 224
 225         # run a script send the output to the punter
 226         my $script = new Script(lc $call) || new Script('user_default');
 227         $script->run($self) if $script;
 228
 229         # send cluster info
 230         $self->send($self->run_cmd("show/cluster"));
 231
 232         # send prompts for qth, name and things
 233         $self->send($self->msg('namee1')) if !$user->name;
 234         $self->send($self->msg('qthe1')) if !$user->qth;
 235         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 236         $self->send($self->msg('hnodee1')) if !$user->qth;
 237         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 238
 239         # send out any buddy messages for other people that are online
 240         foreach my $call (@{$user->buddies}) {
 241                 my $ref = Route::User::get($call);
 242                 if ($ref) {
 243                         foreach my $node ($ref->parents) {
 244                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 245                         }
 246                 }
 247         }
 248
 249         $self->lastmsgpoll($main::systime);
 250         $self->prompt;
 251 }
 252
 253 #
 254 # This is the normal command prompt driver
 255 #
 256
 257 sub normal
 258 {
 259         my $self = shift;
 260         my $cmdline = shift;
 261         my @ans;
 262
 263         # save this for them's that need it
 264         my $rawline = $cmdline;
 265
 266         # remove leading and trailing spaces
 267         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 268
 269         if ($self->{state} eq 'page') {
 270                 my $i = $self->{pagelth}-5;
 271                 my $ref = $self->{pagedata};
 272                 my $tot = @$ref;
 273
 274                 # abort if we get a line starting in with a
 275                 if ($cmdline =~ /^a/io) {
 276                         undef $ref;
 277                         $i = 0;
 278                 }
 279
 280                 # send a tranche of data
 281                 for (; $i > 0 && @$ref; --$i) {
 282                         my $line = shift @$ref;
 283                         $line =~ s/\s+$//o;     # why am having to do this?
 284                         $self->send($line);
 285                 }
 286
 287                 # reset state if none or else chuck out an intermediate prompt
 288                 if ($ref && @$ref) {
 289                         $tot -= $self->{pagelth};
 290                         $self->send($self->msg('page', $tot));
 291                 } else {
 292                         $self->state('prompt');
 293                 }
 294         } elsif ($self->{state} eq 'sysop') {
 295                 my $passwd = $self->{user}->passwd;
 296                 if ($passwd) {
 297                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 298                         my @l = @{$self->{passwd}};
 299                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 300                         if ($cmdline =~ /$str/) {
 301                                 $self->{priv} = $self->{user}->priv;
 302                         } else {
 303                                 $self->send($self->msg('sorry'));
 304                         }
 305                 } else {
 306                         $self->send($self->msg('sorry'));
 307                 }
 308                 $self->state('prompt');
 309         } elsif ($self->{state} eq 'passwd') {
 310                 my $passwd = $self->{user}->passwd;
 311                 if ($passwd && $cmdline eq $passwd) {
 312                         $self->send($self->msg('pw1'));
 313                         $self->state('passwd1');
 314                 } else {
 315                         $self->conn->{echo} = $self->conn->{decho};
 316                         delete $self->conn->{decho};
 317                         $self->send($self->msg('sorry'));
 318                         $self->state('prompt');
 319                 }
 320         } elsif ($self->{state} eq 'passwd1') {
 321                 $self->{passwd} = $cmdline;
 322                 $self->send($self->msg('pw2'));
 323                 $self->state('passwd2');
 324         } elsif ($self->{state} eq 'passwd2') {
 325                 if ($cmdline eq $self->{passwd}) {
 326                         $self->{user}->passwd($cmdline);
 327                         $self->send($self->msg('pw3'));
 328                 } else {
 329                         $self->send($self->msg('pw4'));
 330                 }
 331                 $self->conn->{echo} = $self->conn->{decho};
 332                 delete $self->conn->{decho};
 333                 $self->state('prompt');
 334         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 335                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 336                         for (@{$self->{talklist}}) {
 337                                 if ($self->{state} eq 'talk') {
 338                                         $self->send_talks($_,  $self->msg('talkend'));
 339                                 } else {
 340                                         $self->local_send('C', $self->msg('chatend', $_));
 341                                 }
 342                         }
 343                         $self->state('prompt');
 344                         delete $self->{talklist};
 345                 } elsif ($cmdline =~ m|^/+\w+|) {
 346                         $cmdline =~ s|^/||;
 347                         my $sendit = $cmdline =~ s|^/+||;
 348                         my @in = $self->run_cmd($cmdline);
 349                         $self->send_ans(@in);
 350                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 351                                 foreach my $l (@in) {
 352                                         my @bad;
 353                                         if (@bad = BadWords::check($l)) {
 354                                                 $self->badcount(($self->badcount||0) + @bad);
 355                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 356                                         } else {
 357                                                 for (@{$self->{talklist}}) {
 358                                                         if ($self->{state} eq 'talk') {
 359                                                                 $self->send_talks($_, $l);
 360                                                         } else {
 361                                                                 send_chats($self, $_, $l)
 362                                                         }
 363                                                 }
 364                                         }
 365                                 }
 366                         }
 367                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 368                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 369                         # send what has been said to whoever is in this person's talk list
 370                         my @bad;
 371                         if (@bad = BadWords::check($cmdline)) {
 372                                 $self->badcount(($self->badcount||0) + @bad);
 373                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 374                         } else {
 375                                 for (@{$self->{talklist}}) {
 376                                         if ($self->{state} eq 'talk') {
 377                                                 $self->send_talks($_, $rawline);
 378                                         } else {
 379                                                 send_chats($self, $_, $rawline);
 380                                         }
 381                                 }
 382                         }
 383                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 384                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 385                 } else {
 386                         # for safety
 387                         $self->state('prompt');
 388                 }
 389         } elsif (my $func = $self->{func}) {
 390                 no strict 'refs';
 391                 my @ans;
 392                 if (ref $self->{edit}) {
 393                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 394                 } else {
 395                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 396                 }
 397                 if ($@) {
 398                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 399                         delete $self->{func};
 400                         $self->state('prompt');
 401                         undef $@;
 402                 }
 403                 $self->send_ans(@ans);
 404         } else {
 405                 $self->send_ans(run_cmd($self, $cmdline));
 406         }
 407
 408         # check for excessive swearing
 409         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 410                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 411                 $self->disconnect;
 412                 return;
 413         }
 414
 415         # send a prompt only if we are in a prompt state
 416         $self->prompt() if $self->{state} =~ /^prompt/o;
 417 }
 418
 419 # send out the talk messages taking into account vias and connectivity
 420 sub send_talks
 421 {
 422         my ($self, $ent, $line) = @_;
 423
 424         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 425         $to = $ent unless $to;
 426         my $call = $via && $via ne '*' ? $via : $to;
 427         my $clref = Route::get($call);
 428         my $dxchan = $clref->dxchan if $clref;
 429         if ($dxchan) {
 430                 $dxchan->talk($self->{call}, $to, undef, $line);
 431         } else {
 432                 $self->send($self->msg('disc2', $via ? $via : $to));
 433                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 434                 if (@l) {
 435                         $self->{talklist} = \@l;
 436                 } else {
 437                         delete $self->{talklist};
 438                         $self->state('prompt');
 439                 }
 440         }
 441 }
 442
 443 sub send_chats
 444 {
 445         my $self = shift;
 446         my $target = shift;
 447         my $text = shift;
 448
 449         my $msgid = DXProt::nextchatmsgid();
 450         $text = "#$msgid $text";
 451         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 452 }
 453
 454 sub special_prompt
 455 {
 456         my $self = shift;
 457         my $prompt = shift;
 458         my @call;
 459         for (@{$self->{talklist}}) {
 460                 my ($to, $via) = /(\S+)>(\S+)/;
 461                 $to = $_ unless $to;
 462                 push @call, $to;
 463         }
 464         return $self->msg($prompt, join(',', @call));
 465 }
 466
 467 sub talk_prompt
 468 {
 469         my $self = shift;
 470         return $self->special_prompt('talkprompt');
 471 }
 472
 473 sub chat_prompt
 474 {
 475         my $self = shift;
 476         return $self->special_prompt('chatprompt');
 477 }
 478
 479 #
 480 # send a load of stuff to a command user with page prompting
 481 # and stuff
 482 #
 483
 484 sub send_ans
 485 {
 486         my $self = shift;
 487
 488         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 489                 my $i;
 490                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 491                         my $line = shift @_;
 492                         $line =~ s/\s+$//o;     # why am having to do this?
 493                         $self->send($line);
 494                 }
 495                 $self->{pagedata} =  [ @_ ];
 496                 $self->state('page');
 497                 $self->send($self->msg('page', scalar @_));
 498         } else {
 499                 for (@_) {
 500                         if (defined $_) {
 501                                 $self->send($_);
 502                         } else {
 503                                 $self->send('');
 504                         }
 505                 }
 506         }
 507 }
 508
 509 #
 510 # this is the thing that preps for running the command, it is done like this for the
 511 # benefit of remote command execution
 512 #
 513
 514 sub run_cmd
 515 {
 516         my $self = shift;
 517         my $user = $self->{user};
 518         my $call = $self->{call};
 519         my $cmdline = shift;
 520         my @ans;
 521
 522         return () if length $cmdline == 0;
 523
 524         # split the command line up into parts, the first part is the command
 525         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 526         $args = "" unless defined $args;
 527
 528         if ($cmd) {
 529
 530                 # check cmd
 531                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 532                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 533                         return $self->_error_out('e1');
 534                 }
 535
 536                 # strip out // on command only
 537                 $cmd =~ s|//|/|g;
 538
 539                 my ($path, $fcmd);
 540
 541                 dbg("cmd: $cmd") if isdbg('command');
 542
 543                 # alias it if possible
 544                 my $acmd = CmdAlias::get_cmd($cmd);
 545                 if ($acmd) {
 546                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 547                         $args = "" unless defined $args;
 548                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 549                 }
 550
 551                 # first expand out the entry to a command
 552                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 553                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 554
 555                 if ($path && $cmd) {
 556                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 557
 558                         my $package = find_cmd_name($path, $fcmd);
 559                         return ($@) if $@;
 560
 561                         if ($package && $self->can("${package}::handle")) {
 562                                 no strict 'refs';
 563                                 dbg("cmd: package $package") if isdbg('command');
 564 #                               Log('cmd', "$self->{call} on $self->{hostname} : '$cmd $args'");
 565                                 my $t0 = [gettimeofday];
 566                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 567                                 if ($@) {
 568                                         DXDebug::dbgprintring(25);
 569                                         return (DXDebug::shortmess($@));
 570                                 }
 571                                 if (isdbg('progress')) {
 572                                         my $msecs = _diffms($t0);
 573                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 574                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 575                                 }
 576                         } else {
 577                                 dbg("cmd: $package not present") if isdbg('command');
 578                                 return $self->_error_out('e1');
 579                         }
 580                 } else {
 581                         dbg("cmd: $cmd not found") if isdbg('command');
 582                         return $self->_error_out('e1');
 583                 }
 584         }
 585
 586         my $ok = shift @ans;
 587         if ($ok) {
 588                 delete $self->{errors};
 589         } else {
 590                 if (++$self->{errors} > $DXChannel::maxerrors) {
 591                         $self->send($self->msg('e26'));
 592                         $self->disconnect;
 593                         return ();
 594                 }
 595         }
 596         return map {s/([^\s])\s+$/$1/; $_} @ans;
 597 }
 598
 599 #
 600 # This is called from inside the main cluster processing loop and is used
 601 # for despatching commands that are doing some long processing job
 602 #
 603 sub process
 604 {
 605         my $t = time;
 606         my @dxchan = DXChannel::get_all();
 607         my $dxchan;
 608
 609         $users = 0;
 610         foreach $dxchan (@dxchan) {
 611                 next unless $dxchan->is_user;
 612
 613                 # send a outstanding message prompt if required
 614                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 615                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 616                         $dxchan->lastmsgpoll($t);
 617                 }
 618
 619                 # send a prompt if no activity out on this channel
 620                 if ($t >= $dxchan->t + $main::user_interval) {
 621                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 622                         $dxchan->t($t);
 623                 }
 624                 ++$users;
 625                 $maxusers = $users if $users > $maxusers;
 626
 627                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 628                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 629                                 if ($ref->[0] == 61) {
 630                                         Spot::add(@{$ref->[2]});
 631                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 632                                 }
 633                         }
 634
 635                         $dxchan->{isslugged} = 0;
 636                         $dxchan->{sluggedpcs} = [];
 637                 }
 638         }
 639
 640         import_cmd();
 641 }
 642
 643 #
 644 # finish up a user context
 645 #
 646 sub disconnect
 647 {
 648         my $self = shift;
 649         my $call = $self->call;
 650
 651         return if $self->{disconnecting}++;
 652
 653         delete $self->{senddbg};
 654         RBN::del_seeme($call);
 655
 656         my $uref = Route::User::get($call);
 657         my @rout;
 658         if ($uref) {
 659 #               @rout = $main::routeroot->del_user($uref);
 660                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 661
 662                 # dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 663
 664                 # issue a pc17 to everybody interested
 665                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 666                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 667         } else {
 668                 confess "trying to disconnect a non existant user $call";
 669         }
 670
 671         # I was the last node visited
 672     $self->user->node($main::mycall);
 673
 674         # send info to all logged in thingies
 675         $self->tell_login('logoutu');
 676         $self->tell_buddies('logoutb');
 677
 678         LogDbg('DXCommand', "$call disconnected");
 679
 680         $self->SUPER::disconnect;
 681 }
 682
 683 #
 684 # short cut to output a prompt
 685 #
 686
 687 sub prompt
 688 {
 689         my $self = shift;
 690
 691         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 692
 693         my $call = $self->call;
 694         my $date = cldate($main::systime);
 695         my $time = ztime($main::systime);
 696         my $prompt = $self->{prompt} || $self->msg('pr');
 697
 698         $call = "($call)" unless $self->here;
 699         $prompt =~ s/\%C/$call/g;
 700         $prompt =~ s/\%D/$date/g;
 701         $prompt =~ s/\%T/$time/g;
 702         $prompt =~ s/\%M/$main::mycall/g;
 703
 704         $self->send($prompt);
 705 }
 706
 707 # broadcast a message to all users [except those mentioned after buffer]
 708 sub broadcast
 709 {
 710         my $pkg = shift;                        # ignored
 711         my $s = shift;                          # the line to be rebroadcast
 712
 713     foreach my $dxchan (DXChannel::get_all()) {
 714                 next unless $dxchan->is_user; # only interested in user channels
 715                 next if grep $dxchan == $_, @_;
 716                 $dxchan->send($s);                      # send it
 717         }
 718 }
 719
 720 # gimme all the users
 721 sub get_all
 722 {
 723         goto &DXChannel::get_all_users;
 724 }
 725
 726 # run a script for this user
 727 sub run_script
 728 {
 729         my $self = shift;
 730         my $silent = shift || 0;
 731
 732 }
 733
 734 #
 735 # search for the command in the cache of short->long form commands
 736 #
 737
 738 sub search
 739 {
 740         my ($path, $short_cmd, $suffix) = @_;
 741         my ($apath, $acmd);
 742
 743         # commands are lower case
 744         $short_cmd = lc $short_cmd;
 745         dbg("command: $path $short_cmd\n") if isdbg('command');
 746
 747         # do some checking for funny characters
 748         return () if $short_cmd =~ /\/$/;
 749
 750         # return immediately if we have it
 751         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 752         if ($apath && $acmd) {
 753                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 754                 return ($apath, $acmd);
 755         }
 756
 757         # if not guess
 758         my @parts = split '/', $short_cmd;
 759         my $dirfn;
 760         my $curdir = $path;
 761
 762         while (my $p = shift @parts) {
 763                 opendir(D, $curdir) or confess "can't open $curdir $!";
 764                 my @ls = readdir D;
 765                 closedir D;
 766
 767                 # if this isn't the last part
 768                 if (@parts) {
 769                         my $found;
 770                         foreach my $l (sort @ls) {
 771                                 next if $l =~ /^\./;
 772                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 773                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 774                                         $dirfn .= "$l/";
 775                                         $curdir .= "/$l";
 776                                         $found++;
 777                                         last;
 778                                 }
 779                         }
 780                         # only proceed if we find the directory asked for
 781                         return () unless $found;
 782                 } else {
 783                         foreach my $l (sort @ls) {
 784                                 next if $l =~ /^\./;
 785                                 next unless $l =~ /\.$suffix$/;
 786                                 if ($p eq substr($l, 0, length $p)) {
 787                                         $l =~ s/\.$suffix$//;
 788                                         $dirfn = "" unless $dirfn;
 789                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 790                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 791                                         return ($path, "$dirfn$l");
 792                                 }
 793                         }
 794                 }
 795         }
 796
 797         return ();
 798 }
 799
 800 # clear the command name cache
 801 sub clear_cmd_cache
 802 {
 803         no strict 'refs';
 804
 805         for my $k (keys %Cache) {
 806                 unless ($k =~ /cmd_cache/) {
 807                         dbg("Undefining cmd $k") if isdbg('command');
 808                         undef $DXCommandmode::{"${k}::"};
 809                 }
 810         }
 811         %cmd_cache = ();
 812         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 813 }
 814
 815 #
 816 # the persistant execution of things from the command directories
 817 #
 818 #
 819 # This allows perl programs to call functions dynamically
 820 #
 821 # This has been nicked directly from the perlembed pages
 822 #
 823 #require Devel::Symdump;
 824
 825 sub valid_package_name {
 826         my $string = shift;
 827         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 828
 829         $string =~ s|/|_|g;
 830         return "cmd_$string";
 831 }
 832
 833 #
 834 # this bit of magic finds a command in the offered directory
 835 sub find_cmd_name {
 836         my $path = shift;
 837         my $cmdname = shift;
 838         my $package = valid_package_name($cmdname);
 839         my $filename = "$path/$cmdname.pl";
 840         my $mtime = -M $filename;
 841
 842         # return if we can't find it
 843         $errstr = undef;
 844         unless (defined $mtime) {
 845                 $errstr = DXM::msg('e1');
 846                 return undef;
 847         }
 848
 849         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 850                 #we have compiled this subroutine already,
 851                 #it has not been updated on disk, nothing left to do
 852                 #print STDERR "already compiled $package->handler\n";
 853                 dbg("find_cmd_name: $package cached") if isdbg('command');
 854         } else {
 855
 856                 my $sub = readfilestr($filename);
 857                 unless ($sub) {
 858                         $errstr = "Syserr: can't open '$filename' $!";
 859                         return undef;
 860                 };
 861
 862                 #wrap the code into a subroutine inside our unique package
 863                 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}; );
 864
 865
 866                 if ($sub =~ m|\s*sub\s+handle\n|) {
 867                         $eval .= $sub;
 868                 } else {
 869                         $eval .= qq(sub handle { $sub });
 870                 }
 871
 872                 if (isdbg('eval')) {
 873                         my @list = split /\n/, $eval;
 874                         my $line;
 875                         for (@list) {
 876                                 dbg($_ . "\n") if isdbg('eval');
 877                         }
 878                 }
 879
 880                 # get rid of any existing sub and try to compile the new one
 881                 no strict 'refs';
 882
 883                 if (exists $Cache{$package}) {
 884                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 885                         undef $DXCommandmode::{"${package}::"};
 886                         delete $Cache{$package};
 887                 } else {
 888                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 889                 }
 890
 891                 eval $eval;
 892
 893                 $Cache{$package} = {mtime => $mtime } unless $@;
 894         }
 895
 896         return "DXCommandmode::$package";
 897 }
 898
 899 sub send
 900 {
 901         my $self = shift;
 902         if ($self->{gtk}) {
 903                 for (@_) {
 904                         $self->SUPER::send(dd(['cmd',$_]));
 905                 }
 906         } else {
 907                 $self->SUPER::send(@_);
 908         }
 909 }
 910
 911 sub local_send
 912 {
 913         my ($self, $let, $buf) = @_;
 914         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 915                 if ($self->{enhanced}) {
 916                         $self->send_later($let, $buf);
 917                 } else {
 918                         $self->send($buf);
 919                 }
 920         } else {
 921                 $self->delay($buf);
 922         }
 923 }
 924
 925 # send a talk message here
 926 sub talk
 927 {
 928         my ($self, $from, $to, $via, $line, $onode) = @_;
 929         $line =~ s/\\5E/\^/g;
 930         if ($self->{talk}) {
 931                 if ($self->{gtk}) {
 932                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 933                 } else {
 934                         $self->local_send('T', "$to de $from: $line");
 935                 }
 936         }
 937         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 938         # send a 'not here' message if required
 939         unless ($self->{here} && $from ne $to) {
 940                 my $key = "$to$from";
 941                 unless (exists $nothereslug{$key}) {
 942                         my ($ref, $dxchan);
 943                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 944                                 my $name = $self->user->name || $to;
 945                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 946                                 $nothereslug{$key} = $main::systime;
 947                                 $dxchan->talk($to, $from, undef, $s);
 948                         }
 949                 }
 950         }
 951 }
 952
 953 # send an announce
 954 sub announce
 955 {
 956         my $self = shift;
 957         my $line = shift;
 958         my $isolate = shift;
 959         my $to = shift;
 960         my $target = shift;
 961         my $text = shift;
 962         my ($filter, $hops);
 963
 964         if (!$self->{ann_talk} && $to ne $self->{call}) {
 965                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 966                 return if $call;
 967         }
 968
 969         if ($self->{annfilter}) {
 970                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 971                 return unless $filter;
 972         }
 973
 974         unless ($self->{ann}) {
 975                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 976         }
 977         return if $target eq 'SYSOP' && $self->{priv} < 5;
 978         my $buf;
 979         if ($self->{gtk}) {
 980                 $buf = dd(['ann', $to, $target, $text, @_])
 981         } else {
 982                 $buf = "$to$target de $_[0]: $text";
 983                 #$buf =~ s/\%5E/^/g;
 984                 $buf .= "\a\a" if $self->{beep};
 985         }
 986         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 987 }
 988
 989 # send a chat
 990 sub chat
 991 {
 992         my $self = shift;
 993         my $line = shift;
 994         my $isolate = shift;
 995         my $target = shift;
 996         my $to = shift;
 997         my $text = shift;
 998         my ($filter, $hops);
 999
1000         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
1001
1002         $text =~ s/^\#\d+ //;
1003         my $buf;
1004         if ($self->{gtk}) {
1005                 $buf = dd(['chat', $to, $target, $text, @_])
1006         } else {
1007                 $buf = "$target de $_[0]: $text";
1008                 #$buf =~ s/\%5E/^/g;
1009                 $buf .= "\a\a" if $self->{beep};
1010         }
1011         $self->local_send('C', $buf);
1012 }
1013
1014 sub format_dx_spot
1015 {
1016         my $self = shift;
1017
1018         my $t = ztime($_[2]);
1019         my ($slot1, $slot2) = ('', '');
1020
1021         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1022         my $c = $_[3];
1023         $c =~ s/\t/ /g;
1024         my $comment = substr (($c || ''), 0, $clth);
1025         $comment .= ' ' x ($clth - (length($comment)));
1026
1027     if (!$slot1 && $self->{user}->wantgrid) {
1028                 my $ref = DXUser::get_current($_[1]);
1029                 if ($ref && $ref->qra) {
1030                         $slot1 = ' ' . substr($ref->qra, 0, 4);
1031                 }
1032         }
1033         if (!$slot1 && $self->{user}->wantusstate) {
1034                 $slot1 = " $_[12]" if $_[12];
1035         }
1036         unless ($slot1) {
1037                 if ($self->{user}->wantdxitu) {
1038                         $slot1 = sprintf(" %2d", $_[8]) if defined $_[8];
1039                 } elsif ($self->{user}->wantdxcq) {
1040                         $slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
1041                 }
1042         }
1043         $comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
1044
1045     if (!$slot2 && $self->{user}->wantgrid) {
1046                 my $origin = $_[4];
1047                 $origin =~ s/-#$//;                     # sigh......
1048                 my $ref = DXUser::get_current($origin);
1049                 if ($ref && $ref->qra) {
1050                         $slot2 = ' ' . substr($ref->qra, 0, 4);
1051                 }
1052         }
1053         if (!$slot2 && $self->{user}->wantusstate) {
1054                 $slot2 = " $_[13]" if $_[13];
1055         }
1056         unless ($slot2) {
1057                 if ($self->{user}->wantdxitu) {
1058                         $slot2 = sprintf(" %2d", $_[10]) if defined $_[10];
1059                 } elsif ($self->{user}->wantdxcq) {
1060                         $slot2 = sprintf(" %2d", $_[11]) if defined $_[11];
1061                 }
1062         }
1063
1064         my $o = sprintf("%-9s", $_[4] . ':');
1065         my $qrg = sprintf "%8.1f", $_[0];
1066         if (length $qrg >= 9) {
1067                 while (length($o)+length($qrg) > 17 && $o =~ / $/) {
1068                         chop $o;
1069                 }
1070         }
1071         my $spot = sprintf "%-12s", $_[1];
1072         my $front = "DX de $o $qrg  $spot";
1073         while (length($front) > 38 && $front =~ /  $/) {
1074                 chop $front;
1075         }
1076
1077
1078         return sprintf "$front %-s $t$slot2", $comment;
1079 }
1080
1081
1082 # send a dx spot
1083 sub dx_spot
1084 {
1085         my $self = shift;
1086         my $line = shift;
1087         my $isolate = shift;
1088         return unless $self->{dx};
1089
1090         my ($filter, $hops);
1091
1092         if ($self->{spotsfilter}) {
1093                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1094                 return unless $filter;
1095         }
1096
1097         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1098
1099         my $buf;
1100         if ($self->{ve7cc}) {
1101                 $buf = VE7CC::dx_spot($self, @_);
1102         } elsif ($self->{gtk}) {
1103                 my ($dxloc, $byloc);
1104
1105                 my $ref = DXUser::get_current($_[4]);
1106                 if ($ref) {
1107                         $byloc = $ref->qra;
1108                         $byloc = substr($byloc, 0, 4) if $byloc;
1109                 }
1110
1111                 my $spot = $_[1];
1112                 $spot =~ s|/\w{1,4}$||;
1113                 $ref = DXUser::get_current($spot);
1114                 if ($ref) {
1115                         $dxloc = $ref->qra;
1116                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1117                 }
1118                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1119
1120         } else {
1121                 $buf = $self->format_dx_spot(@_);
1122                 $buf .= "\a\a" if $self->{beep};
1123                 #$buf =~ s/\%5E/^/g;
1124         }
1125
1126         $self->local_send('X', $buf);
1127 }
1128
1129 sub wwv
1130 {
1131         my $self = shift;
1132         my $line = shift;
1133         my $isolate = shift;
1134         my ($filter, $hops);
1135
1136         return unless $self->{wwv};
1137
1138         if ($self->{wwvfilter}) {
1139                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1140                 return unless $filter;
1141         }
1142
1143         my $buf;
1144         if ($self->{gtk}) {
1145                 $buf = dd(['wwv', @_])
1146         } else {
1147                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1148                 $buf .= "\a\a" if $self->{beep};
1149         }
1150
1151         $self->local_send('V', $buf);
1152 }
1153
1154 sub wcy
1155 {
1156         my $self = shift;
1157         my $line = shift;
1158         my $isolate = shift;
1159         my ($filter, $hops);
1160
1161         return unless $self->{wcy};
1162
1163         if ($self->{wcyfilter}) {
1164                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1165                 return unless $filter;
1166         }
1167
1168         my $buf;
1169         if ($self->{gtk}) {
1170                 $buf = dd(['wcy', @_])
1171         } else {
1172                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1173                 $buf .= "\a\a" if $self->{beep};
1174         }
1175         $self->local_send('Y', $buf);
1176 }
1177
1178 # broadcast debug stuff to all interested parties
1179 sub broadcast_debug
1180 {
1181         my $s = shift;                          # the line to be rebroadcast
1182
1183         foreach my $dxchan (DXChannel::get_all_users) {
1184                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1185                 if ($dxchan->{gtk}) {
1186                         $dxchan->send_later('L', dd(['db', $s]));
1187                 } else {
1188                         $dxchan->send_later('L', $s);
1189                 }
1190         }
1191 }
1192
1193 sub do_entry_stuff
1194 {
1195         my $self = shift;
1196         my $line = shift;
1197         my @out;
1198
1199         if ($self->state eq 'enterbody') {
1200                 my $loc = $self->{loc} || confess "local var gone missing" ;
1201                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1202                         no strict 'refs';
1203                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1204                         $self->func(undef);
1205                         $self->state('prompt');
1206                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1207                         push @out, $self->msg('m10');
1208                         delete $loc->{lines};
1209                         delete $self->{loc};
1210                         $self->func(undef);
1211                         $self->state('prompt');
1212                 } else {
1213                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1214                         # i.e. it ain't and end or abort, therefore store the line
1215                 }
1216         } else {
1217                 confess "Invalid state $self->{state}";
1218         }
1219         return @out;
1220 }
1221
1222 sub store_startup_script
1223 {
1224         my $self = shift;
1225         my $loc = $self->{loc} || confess "local var gone missing" ;
1226         my @out;
1227         my $call = $loc->{call} || confess "callsign gone missing";
1228         confess "lines array gone missing" unless ref $loc->{lines};
1229         my $r = Script::store($call, $loc->{lines});
1230         if (defined $r) {
1231                 if ($r) {
1232                         push @out, $self->msg('m19', $call, $r);
1233                 } else {
1234                         push @out, $self->msg('m20', $call);
1235                 }
1236         } else {
1237                 push @out, "error opening startup script $call $!";
1238         }
1239         return @out;
1240 }
1241
1242 # Import any commands contained in any files in import_cmd directory
1243 #
1244 # If the filename has a recogisable callsign as some delimited part
1245 # of it, then this is the user the command will be run as.
1246 #
1247 sub import_cmd
1248 {
1249         # are there any to do in this directory?
1250         return unless -d $cmdimportdir;
1251         unless (opendir(DIR, $cmdimportdir)) {
1252                 LogDbg('err', "can\'t open $cmdimportdir $!");
1253                 return;
1254         }
1255
1256         my @names = readdir(DIR);
1257         closedir(DIR);
1258         my $name;
1259
1260         return unless @names;
1261
1262         foreach $name (@names) {
1263                 next if $name =~ /^\./;
1264
1265                 my $s = Script->new($name, $cmdimportdir);
1266                 if ($s) {
1267                         LogDbg('DXCommand', "Run import cmd file $name");
1268                         my @cat = split /[^A-Za-z0-9]+/, $name;
1269                         my ($call) = grep {is_callsign(uc $_)} @cat;
1270                         $call ||= $main::mycall;
1271                         $call = uc $call;
1272                         my @out;
1273
1274
1275                         $s->inscript(0);        # switch off script checks
1276
1277                         if ($call eq $main::mycall) {
1278                                 @out = $s->run($main::me, 1);
1279                         } else {
1280                                 my $dxchan = DXChannel::get($call);
1281                             if ($dxchan) {
1282                                         @out = $s->run($dxchan, 1);
1283                                 } else {
1284                                         my $u = DXUser::get($call);
1285                                         if ($u) {
1286                                                 $dxchan = $main::me;
1287                                                 my $old = $dxchan->{call};
1288                                                 my $priv = $dxchan->{priv};
1289                                                 my $user = $dxchan->{user};
1290                                                 $dxchan->{call} = $call;
1291                                                 $dxchan->{priv} = $u->priv;
1292                                                 $dxchan->{user} = $u;
1293                                                 @out = $s->run($dxchan, 1);
1294                                                 $dxchan->{call} = $old;
1295                                                 $dxchan->{priv} = $priv;
1296                                                 $dxchan->{user} = $user;
1297                                         } else {
1298                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1299                                         }
1300                                 }
1301                         }
1302                         $s->erase;
1303                         for (@out) {
1304                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1305                         }
1306                 } else {
1307                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1308                         unlink "$cmdimportdir/$name";
1309                 }
1310         }
1311 }
1312
1313 sub print_find_reply
1314 {
1315         my ($self, $node, $target, $flag, $ms) = @_;
1316         my $sort = $flag == 2 ? "External" : "Local";
1317         $self->send("$sort $target found at $node in $ms ms" );
1318 }
1319
1320 # send the most relevant motd
1321 sub send_motd
1322 {
1323         my $self = shift;
1324         my $motd;
1325
1326         unless ($self->isregistered) {
1327                 $motd = "${main::motd}_nor_$self->{lang}";
1328                 $motd = "${main::motd}_nor" unless -e $motd;
1329         }
1330         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1331         $motd = $main::motd unless $motd && -e $motd;
1332         if ($self->conn->ax25) {
1333                 if ($motd) {
1334                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1335                 } else {
1336                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1337                 }
1338         }
1339         $self->send_file($motd) if -e $motd;
1340 }
1341
1342 # Punt off a long running command into a separate process
1343 #
1344 # This is called from commands to run some potentially long running
1345 # function. The process forks and then runs the function and returns
1346 # the result back to the cmd.
1347 #
1348 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1349 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1350 #       THE CURRENT CONTEXT!!
1351 #
1352 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1353 sub spawn_cmd
1354 {
1355         my $self = shift;
1356         my $line = shift;
1357         my $cmdref = shift;
1358         my $call = $self->{call};
1359         my %args = @_;
1360         my @out;
1361
1362         my $cb = delete $args{cb};
1363         my $prefix = delete $args{prefix};
1364         my $progress = delete $args{progress};
1365         my $args = delete $args{args} || [];
1366         my $t0 = [gettimeofday];
1367
1368         no strict 'refs';
1369
1370         # just behave normally if something has set the "one-shot" _nospawn in the channel
1371         if ($self->{_nospawn}) {
1372                 eval { @out = $cmdref->(@$args); };
1373                 if ($@) {
1374                         DXDebug::dbgprintring(25);
1375                         push @out, DXDebug::shortmess($@);
1376                 }
1377                 return @out;
1378         }
1379
1380         my $fc = DXSubprocess->new;
1381 #       $fc->serializer(\&encode_json);
1382 #       $fc->deserializer(\&decode_json);
1383         $fc->run(
1384                          sub {
1385                                  my $subpro = shift;
1386                                  if (isdbg('progress')) {
1387                                          my $s = qq{$call line: "$line"};
1388                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1389                                          dbg($s);
1390                                  }
1391                                  eval {
1392                                          ++$self->{_in_sub_process};
1393                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1394                                          @out = $cmdref->(@$args);
1395                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1396                                  };
1397                                  if ($@) {
1398                                          DXDebug::dbgprintring(25);
1399                                          push @out, DXDebug::shortmess($@);
1400                                  }
1401                                  return @out;
1402                          },
1403 #                        $args,
1404                          sub {
1405                                  my ($fc, $err, @res) = @_;
1406                                  my $dxchan = DXChannel::get($call);
1407                                  return unless $dxchan;
1408
1409                                  if ($err) {
1410                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1411                                          dbg($s) if isdbg('chan');
1412                                          $dxchan->send($s);
1413                                          return;
1414                                  }
1415                                  if ($cb) {
1416                                          # transform output if required
1417                                          @res = $cb->($dxchan, @res);
1418                                  }
1419                                  if (@res) {
1420                                          if (defined $prefix) {
1421                                                  $dxchan->send(map {"$prefix$_"} @res);
1422                                          } else {
1423                                                  $dxchan->send(@res);
1424                                          }
1425                                  }
1426                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1427                          });
1428
1429         return @out;
1430 }
1431
1432 sub user_count
1433 {
1434     return ($users, $maxusers);
1435 }
1436
1437 1;
1438 __END__