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
  55 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  56 %cmd_cache = ();                                # cache of short names
  57 $errstr = ();                                   # error string from eval
  58 %aliases = ();                                  # aliases for (parts of) commands
  59 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  60 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  61 $msgpolltime = 3600;                    # the time between polls for new messages
  62 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  63                                           # this does not exist as default, you need to create it manually
  64 $users = 0;                                       # no of users on this node currently
  65 $maxusers = 0;                            # max no users on this node for this run
  66
  67 #
  68 # obtain a new connection this is derived from dxchannel
  69 #
  70
  71 sub new
  72 {
  73         my $self = DXChannel::alloc(@_);
  74
  75         # routing, this must go out here to prevent race condx
  76         my $pkg = shift;
  77         my $call = shift;
  78         #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  79         my $ipaddr = alias_localhost($self->hostname);
  80         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $ipaddr], );
  81
  82         # ALWAYS output the user
  83         my $ref = Route::User::get($call);
  84         if ($ref) {
  85                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  86                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
  87         }
  88
  89         return $self;
  90 }
  91
  92 # this is how a a connection starts, you get a hello message and the motd with
  93 # possibly some other messages asking you to set various things up if you are
  94 # new (or nearly new and slacking) user.
  95
  96 sub start
  97 {
  98         my ($self, $line, $sort) = @_;
  99         my $user = $self->{user};
 100         my $call = $self->{call};
 101         my $name = $user->{name};
 102
 103         # log it
 104         my $host = $self->{conn}->peerhost;
 105         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
 106         $host ||= "unknown";
 107         $self->{hostname} = $host;
 108
 109         $self->{name} = $name ? $name : $call;
 110         $self->send($self->msg('l2',$self->{name}));
 111         $self->send("Capabilities: ve7cc rbn");
 112         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 113         $self->{priv} = $user->priv || 0;
 114         $self->{lang} = $user->lang || $main::lang || 'en';
 115         my $pagelth = $user->pagelth;
 116         $pagelth = $default_pagelth unless defined $pagelth;
 117         $self->{pagelth} = $pagelth;
 118         ($self->{width}) = $line =~ /\s*width=(\d+)/; $line =~ s/\s*width=\d+//;
 119         $self->{enhanced} = $line =~ /\s+enhanced/; $line =~ s/\s*enhanced//;
 120         if ($line =~ /host=/) {
 121                 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
 122                 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
 123                 unless ($h) {
 124                         ($h) = $line =~ /host=([\da..fA..F:]+)/;
 125                         $line =~ s/\s*host=[\da..fA..F:]+// if $h;
 126                 }
 127                 $self->{hostname} = $h if $h;
 128         }
 129         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 130         $self->{consort} = $line;       # save the connection type
 131
 132         LogDbg('DXCommand', "$call connected from $self->{hostname} cols $self->{width}" . ($self->{enhanced}?" enhanced":''));
 133
 134         # set some necessary flags on the user if they are connecting
 135         $self->{beep} = $user->wantbeep;
 136         $self->{ann} = $user->wantann;
 137         $self->{wwv} = $user->wantwwv;
 138         $self->{wcy} = $user->wantwcy;
 139         $self->{talk} = $user->wanttalk;
 140         $self->{wx} = $user->wantwx;
 141         $self->{dx} = $user->wantdx;
 142         $self->{logininfo} = $user->wantlogininfo;
 143         $self->{ann_talk} = $user->wantann_talk;
 144         $self->{wantrbn} = $user->wantrbn;
 145         $self->{here} = 1;
 146         $self->{prompt} = $user->prompt if $user->prompt;
 147         $self->{lastmsgpoll} = 0;
 148         $self->{rbnseeme} = $user->rbnseeme;
 149         RBN::add_seeme($call) if $self->{rbnseeme};
 150
 151         # sort out new dx spot stuff
 152         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 153         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 154         $user->wantusstate(0) unless defined $user->{wantusstate};
 155
 156         # sort out registration
 157         if ($main::reqreg == 2) {
 158                 $self->{registered} = !$user->registered;
 159         } else {
 160                 $self->{registered} = $user->registered;
 161         }
 162
 163         # establish slug queue, if required
 164         $self->{sluggedpcs} = [];
 165         $self->{isslugged} = $DXProt::pc92_slug_changes + $DXProt::last_pc92_slug + 5 if $DXProt::pc92_slug_changes;
 166         $self->{isslugged} = 0 if $self->{priv} || $user->registered || ($user->homenode && $user->homenode eq $main::mycall);
 167
 168         # send the relevant MOTD
 169         $self->send_motd;
 170
 171         # sort out privilege reduction
 172         $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};
 173
 174         # get the filters
 175         my $nossid = $call;
 176         $nossid =~ s/-\d+$//;
 177
 178         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 179                 || Filter::read_in('spots', $nossid, 0)
 180                         || Filter::read_in('spots', 'user_default', 0);
 181         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 182                 || Filter::read_in('wwv', $nossid, 0)
 183                         || Filter::read_in('wwv', 'user_default', 0);
 184         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 185                 || Filter::read_in('wcy', $nossid, 0)
 186                         || Filter::read_in('wcy', 'user_default', 0);
 187         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 188                 || Filter::read_in('ann', $nossid, 0)
 189                         || Filter::read_in('ann', 'user_default', 0) ;
 190         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 191                 || Filter::read_in('rbn', $nossid, 0)
 192                 || Filter::read_in('rbn', 'user_default', 0);
 193
 194         # clean up qra locators
 195         my $qra = $user->qra;
 196         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 197         unless ($qra) {
 198                 my $lat = $user->lat;
 199                 my $long = $user->long;
 200                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 201         }
 202
 203         # decide on echo
 204         my $echo = $user->wantecho;
 205         unless ($echo) {
 206                 $self->send_now('E', "0");
 207                 $self->send($self->msg('echow'));
 208                 $self->conn->echo($echo) if $self->conn->can('echo');
 209         }
 210
 211         $self->tell_login('loginu');
 212         $self->tell_buddies('loginb');
 213
 214         # is this a bad ip address?
 215         if (is_ipaddr($self->{hostname})) {
 216                 $self->{badip} = DXCIDR::find($self->{hostname});
 217         }
 218
 219         # do we need to send a forward/opernam?
 220         my $lastoper = $user->lastoper || 0;
 221         my $homenode = $user->homenode || "";
 222         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 223                 run_cmd($main::me, "forward/opernam $call");
 224                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 225         }
 226
 227         # run a script send the output to the punter
 228         my $script = new Script(lc $call) || new Script('user_default');
 229         $script->run($self) if $script;
 230
 231         # send cluster info
 232         $self->send($self->run_cmd("show/cluster"));
 233
 234         # send prompts for qth, name and things
 235         $self->send($self->msg('namee1')) if !$user->name;
 236         $self->send($self->msg('qthe1')) if !$user->qth;
 237         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 238         $self->send($self->msg('hnodee1')) if !$user->qth;
 239         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 240
 241         # send out any buddy messages for other people that are online
 242         foreach my $call (@{$user->buddies}) {
 243                 my $ref = Route::User::get($call);
 244                 if ($ref) {
 245                         foreach my $node ($ref->parents) {
 246                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 247                         }
 248                 }
 249         }
 250
 251         $self->lastmsgpoll($main::systime);
 252         $self->prompt;
 253 }
 254
 255 #
 256 # This is the normal command prompt driver
 257 #
 258
 259 sub normal
 260 {
 261         my $self = shift;
 262         my $cmdline = shift;
 263         my @ans;
 264         my @bad;
 265
 266         # save this for them's that need it
 267         my $rawline = $cmdline;
 268
 269         # remove leading and trailing spaces
 270         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 271
 272         if ($self->{state} eq 'page') {
 273                 my $i = $self->{pagelth}-5;
 274                 my $ref = $self->{pagedata};
 275                 my $tot = @$ref;
 276
 277                 # abort if we get a line starting in with a
 278                 if ($cmdline =~ /^a/io) {
 279                         undef $ref;
 280                         $i = 0;
 281                 }
 282
 283                 # send a tranche of data
 284                 for (; $i > 0 && @$ref; --$i) {
 285                         my $line = shift @$ref;
 286                         $line =~ s/\s+$//o;     # why am having to do this?
 287                         $self->send($line);
 288                 }
 289
 290                 # reset state if none or else chuck out an intermediate prompt
 291                 if ($ref && @$ref) {
 292                         $tot -= $self->{pagelth};
 293                         $self->send($self->msg('page', $tot));
 294                 } else {
 295                         $self->state('prompt');
 296                 }
 297         } elsif ($self->{state} eq 'sysop') {
 298                 my $passwd = $self->{user}->passwd;
 299                 if ($passwd) {
 300                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 301                         my @l = @{$self->{passwd}};
 302                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 303                         if ($cmdline =~ /$str/) {
 304                                 $self->{priv} = $self->{user}->priv;
 305                         } else {
 306                                 $self->send($self->msg('sorry'));
 307                         }
 308                 } else {
 309                         $self->send($self->msg('sorry'));
 310                 }
 311                 $self->state('prompt');
 312         } elsif ($self->{state} eq 'passwd') {
 313                 my $passwd = $self->{user}->passwd;
 314                 if ($passwd && $cmdline eq $passwd) {
 315                         $self->send($self->msg('pw1'));
 316                         $self->state('passwd1');
 317                 } else {
 318                         $self->conn->{echo} = $self->conn->{decho};
 319                         delete $self->conn->{decho};
 320                         $self->send($self->msg('sorry'));
 321                         $self->state('prompt');
 322                 }
 323         } elsif ($self->{state} eq 'passwd1') {
 324                 $self->{passwd} = $cmdline;
 325                 $self->send($self->msg('pw2'));
 326                 $self->state('passwd2');
 327         } elsif ($self->{state} eq 'passwd2') {
 328                 if ($cmdline eq $self->{passwd}) {
 329                         $self->{user}->passwd($cmdline);
 330                         $self->send($self->msg('pw3'));
 331                 } else {
 332                         $self->send($self->msg('pw4'));
 333                 }
 334                 $self->conn->{echo} = $self->conn->{decho};
 335                 delete $self->conn->{decho};
 336                 $self->state('prompt');
 337         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 338                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 339                         for (@{$self->{talklist}}) {
 340                                 if ($self->{state} eq 'talk') {
 341                                         $self->send_talks($_,  $self->msg('talkend'));
 342                                 } else {
 343                                         $self->local_send('C', $self->msg('chatend', $_));
 344                                 }
 345                         }
 346                         $self->state('prompt');
 347                         delete $self->{talklist};
 348                 } elsif ($cmdline =~ m|^/+\w+|) {
 349                         $cmdline =~ s|^/||;
 350                         my $sendit = $cmdline =~ s|^/+||;
 351                         if (@bad = BadWords::check($cmdline)) {
 352                                 $self->badcount(($self->badcount||0) + @bad);
 353                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 354                         } else {
 355                                 my @in = $self->run_cmd($cmdline);
 356                                 $self->send_ans(@in);
 357                                 if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 358                                         foreach my $l (@in) {
 359                                                 for (@{$self->{talklist}}) {
 360                                                         if ($self->{state} eq 'talk') {
 361                                                                 $self->send_talks($_, $l);
 362                                                         } else {
 363                                                                 send_chats($self, $_, $l)
 364                                                         }
 365                                                 }
 366                                         }
 367                                 }
 368                         }
 369                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 370                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 371                         # send what has been said to whoever is in this person's talk list
 372                         if (@bad = BadWords::check($cmdline)) {
 373                                 $self->badcount(($self->badcount||0) + @bad);
 374                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 375                         } else {
 376                                 for (@{$self->{talklist}}) {
 377                                         if ($self->{state} eq 'talk') {
 378                                                 $self->send_talks($_, $rawline);
 379                                         } else {
 380                                                 send_chats($self, $_, $rawline);
 381                                         }
 382                                 }
 383                         }
 384                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 385                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 386                 } else {
 387                         # for safety
 388                         $self->state('prompt');
 389                 }
 390         } elsif (my $func = $self->{func}) {
 391                 no strict 'refs';
 392                 my @ans;
 393                 if (ref $self->{edit}) {
 394                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 395                 } else {
 396                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 397                 }
 398                 if ($@) {
 399                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 400                         delete $self->{func};
 401                         $self->state('prompt');
 402                         undef $@;
 403                 }
 404                 $self->send_ans(@ans);
 405         } else {
 406 #               if (@bad = BadWords::check($cmdline)) {
 407 #                       $self->badcount(($self->badcount||0) + @bad);
 408 #                       LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 409 #               } else {
 410                         $self->send_ans(run_cmd($self, $cmdline));
 411 #               }
 412         }
 413
 414         # check for excessive swearing
 415         if ($maxbadcount && $self->{badcount} && $self->{badcount} >= $maxbadcount) {
 416                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 417                 $self->disconnect;
 418                 return;
 419         }
 420
 421         # send a prompt only if we are in a prompt state
 422         $self->prompt() if $self->{state} =~ /^prompt/o;
 423 }
 424
 425 # send out the talk messages taking into account vias and connectivity
 426 sub send_talks
 427 {
 428         my ($self, $ent, $line) = @_;
 429
 430         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 431         $to = $ent unless $to;
 432         my $call = $via && $via ne '*' ? $via : $to;
 433         my $clref = Route::get($call);
 434         my $dxchan = $clref->dxchan if $clref;
 435         if ($dxchan) {
 436                 $dxchan->talk($self->{call}, $to, undef, $line);
 437         } else {
 438                 $self->send($self->msg('disc2', $via ? $via : $to));
 439                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 440                 if (@l) {
 441                         $self->{talklist} = \@l;
 442                 } else {
 443                         delete $self->{talklist};
 444                         $self->state('prompt');
 445                 }
 446         }
 447 }
 448
 449 sub send_chats
 450 {
 451         my $self = shift;
 452         my $target = shift;
 453         my $text = shift;
 454
 455         my $msgid = DXProt::nextchatmsgid();
 456         $text = "#$msgid $text";
 457         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 458 }
 459
 460 sub special_prompt
 461 {
 462         my $self = shift;
 463         my $prompt = shift;
 464         my @call;
 465         for (@{$self->{talklist}}) {
 466                 my ($to, $via) = /(\S+)>(\S+)/;
 467                 $to = $_ unless $to;
 468                 push @call, $to;
 469         }
 470         return $self->msg($prompt, join(',', @call));
 471 }
 472
 473 sub talk_prompt
 474 {
 475         my $self = shift;
 476         return $self->special_prompt('talkprompt');
 477 }
 478
 479 sub chat_prompt
 480 {
 481         my $self = shift;
 482         return $self->special_prompt('chatprompt');
 483 }
 484
 485 #
 486 # send a load of stuff to a command user with page prompting
 487 # and stuff
 488 #
 489
 490 sub send_ans
 491 {
 492         my $self = shift;
 493
 494         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 495                 my $i;
 496                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 497                         my $line = shift @_;
 498                         $line =~ s/\s+$//o;     # why am having to do this?
 499                         $self->send($line);
 500                 }
 501                 $self->{pagedata} =  [ @_ ];
 502                 $self->state('page');
 503                 $self->send($self->msg('page', scalar @_));
 504         } else {
 505                 for (@_) {
 506                         if (defined $_) {
 507                                 $self->send($_);
 508                         } else {
 509                                 $self->send('');
 510                         }
 511                 }
 512         }
 513 }
 514
 515 #
 516 # this is the thing that preps for running the command, it is done like this for the
 517 # benefit of remote command execution
 518 #
 519
 520 sub run_cmd
 521 {
 522         my $self = shift;
 523         my $user = $self->{user};
 524         my $call = $self->{call};
 525         my $cmdline = shift;
 526         my @ans;
 527
 528         return () if length $cmdline == 0;
 529
 530         # split the command line up into parts, the first part is the command
 531         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 532         $args = "" unless defined $args;
 533
 534         if ($cmd) {
 535
 536                 # check cmd
 537                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 538                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 539                         return $self->_error_out('e1');
 540                 }
 541
 542                 # strip out // on command only
 543                 $cmd =~ s|//|/|g;
 544
 545                 my ($path, $fcmd);
 546
 547                 dbg("cmd: $cmd") if isdbg('command');
 548
 549                 # alias it if possible
 550                 my $acmd = CmdAlias::get_cmd($cmd);
 551                 if ($acmd) {
 552                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 553                         $args = "" unless defined $args;
 554                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 555                 }
 556
 557                 # first expand out the entry to a command
 558                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 559                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 560
 561                 if ($path && $cmd) {
 562                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 563
 564                         my $package = find_cmd_name($path, $fcmd);
 565                         return ($@) if $@;
 566
 567                         if ($package && $self->can("${package}::handle")) {
 568                                 no strict 'refs';
 569                                 dbg("cmd: package $package") if isdbg('command');
 570 #                               Log('cmd', "$self->{call} on $self->{hostname} : '$cmd $args'");
 571                                 my $t0 = [gettimeofday];
 572                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 573                                 if ($@) {
 574                                         DXDebug::dbgprintring(25);
 575                                         return (DXDebug::shortmess($@));
 576                                 }
 577                                 if (isdbg('progress')) {
 578                                         my $msecs = _diffms($t0);
 579                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 580                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 581                                 }
 582                         } else {
 583                                 dbg("cmd: $package not present") if isdbg('command');
 584                                 return $self->_error_out('e1');
 585                         }
 586                 } else {
 587                         dbg("cmd: $cmd not found") if isdbg('command');
 588                         return $self->_error_out('e1');
 589                 }
 590         }
 591
 592         my $ok = shift @ans;
 593         if ($ok) {
 594                 delete $self->{errors};
 595         } else {
 596                 if (++$self->{errors} > $DXChannel::maxerrors) {
 597                         $self->send($self->msg('e26'));
 598                         $self->disconnect;
 599                         return ();
 600                 }
 601         }
 602         return map {s/([^\s])\s+$/$1/; $_} @ans;
 603 }
 604
 605 #
 606 # This is called from inside the main cluster processing loop and is used
 607 # for despatching commands that are doing some long processing job
 608 #
 609 sub process
 610 {
 611         my $t = time;
 612         my @dxchan = DXChannel::get_all();
 613         my $dxchan;
 614
 615         $users = 0;
 616         foreach $dxchan (@dxchan) {
 617                 next unless $dxchan->is_user;
 618
 619                 # send a outstanding message prompt if required
 620                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 621                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 622                         $dxchan->lastmsgpoll($t);
 623                 }
 624
 625                 # send a prompt if no activity out on this channel
 626                 if ($t >= $dxchan->t + $main::user_interval) {
 627                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 628                         $dxchan->t($t);
 629                 }
 630                 ++$users;
 631                 $maxusers = $users if $users > $maxusers;
 632
 633                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 634                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 635                                 if ($ref->[0] == 61) {
 636                                         Spot::add(@{$ref->[2]});
 637                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 638                                 }
 639                         }
 640
 641                         $dxchan->{isslugged} = 0;
 642                         $dxchan->{sluggedpcs} = [];
 643                 }
 644         }
 645
 646         import_cmd();
 647 }
 648
 649 #
 650 # finish up a user context
 651 #
 652 sub disconnect
 653 {
 654         my $self = shift;
 655         my $call = $self->call;
 656
 657         return if $self->{disconnecting}++;
 658
 659         delete $self->{senddbg};
 660         RBN::del_seeme($call);
 661
 662         my $uref = Route::User::get($call);
 663         my @rout;
 664         if ($uref) {
 665 #               @rout = $main::routeroot->del_user($uref);
 666                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 667
 668                 # dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 669
 670                 # issue a pc17 to everybody interested
 671                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 672                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 673         } else {
 674                 confess "trying to disconnect a non existant user $call";
 675         }
 676
 677         # I was the last node visited
 678     $self->user->node($main::mycall);
 679
 680         # send info to all logged in thingies
 681         $self->tell_login('logoutu');
 682         $self->tell_buddies('logoutb');
 683
 684         LogDbg('DXCommand', "$call disconnected");
 685
 686         $self->SUPER::disconnect;
 687 }
 688
 689 #
 690 # short cut to output a prompt
 691 #
 692
 693 sub prompt
 694 {
 695         my $self = shift;
 696
 697         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 698
 699         my $call = $self->call;
 700         my $date = cldate($main::systime);
 701         my $time = ztime($main::systime);
 702         my $prompt = $self->{prompt} || $self->msg('pr');
 703
 704         $call = "($call)" unless $self->here;
 705         $prompt =~ s/\%C/$call/g;
 706         $prompt =~ s/\%D/$date/g;
 707         $prompt =~ s/\%T/$time/g;
 708         $prompt =~ s/\%M/$main::mycall/g;
 709
 710         $self->send($prompt);
 711 }
 712
 713 # broadcast a message to all users [except those mentioned after buffer]
 714 sub broadcast
 715 {
 716         my $pkg = shift;                        # ignored
 717         my $s = shift;                          # the line to be rebroadcast
 718
 719     foreach my $dxchan (DXChannel::get_all()) {
 720                 next unless $dxchan->is_user; # only interested in user channels
 721                 next if grep $dxchan == $_, @_;
 722                 $dxchan->send($s);                      # send it
 723         }
 724 }
 725
 726 # gimme all the users
 727 sub get_all
 728 {
 729         goto &DXChannel::get_all_users;
 730 }
 731
 732 # run a script for this user
 733 sub run_script
 734 {
 735         my $self = shift;
 736         my $silent = shift || 0;
 737
 738 }
 739
 740 #
 741 # search for the command in the cache of short->long form commands
 742 #
 743
 744 sub search
 745 {
 746         my ($path, $short_cmd, $suffix) = @_;
 747         my ($apath, $acmd);
 748
 749         # commands are lower case
 750         $short_cmd = lc $short_cmd;
 751         dbg("command: $path $short_cmd\n") if isdbg('command');
 752
 753         # do some checking for funny characters
 754         return () if $short_cmd =~ /\/$/;
 755
 756         # return immediately if we have it
 757         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 758         if ($apath && $acmd) {
 759                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 760                 return ($apath, $acmd);
 761         }
 762
 763         # if not guess
 764         my @parts = split '/', $short_cmd;
 765         my $dirfn;
 766         my $curdir = $path;
 767
 768         while (my $p = shift @parts) {
 769                 opendir(D, $curdir) or confess "can't open $curdir $!";
 770                 my @ls = readdir D;
 771                 closedir D;
 772
 773                 # if this isn't the last part
 774                 if (@parts) {
 775                         my $found;
 776                         foreach my $l (sort @ls) {
 777                                 next if $l =~ /^\./;
 778                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 779                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 780                                         $dirfn .= "$l/";
 781                                         $curdir .= "/$l";
 782                                         $found++;
 783                                         last;
 784                                 }
 785                         }
 786                         # only proceed if we find the directory asked for
 787                         return () unless $found;
 788                 } else {
 789                         foreach my $l (sort @ls) {
 790                                 next if $l =~ /^\./;
 791                                 next unless $l =~ /\.$suffix$/;
 792                                 if ($p eq substr($l, 0, length $p)) {
 793                                         $l =~ s/\.$suffix$//;
 794                                         $dirfn = "" unless $dirfn;
 795                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 796                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 797                                         return ($path, "$dirfn$l");
 798                                 }
 799                         }
 800                 }
 801         }
 802
 803         return ();
 804 }
 805
 806 # clear the command name cache
 807 sub clear_cmd_cache
 808 {
 809         no strict 'refs';
 810
 811         for my $k (keys %Cache) {
 812                 unless ($k =~ /cmd_cache/) {
 813                         dbg("Undefining cmd $k") if isdbg('command');
 814                         undef $DXCommandmode::{"${k}::"};
 815                 }
 816         }
 817         %cmd_cache = ();
 818         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 819 }
 820
 821 #
 822 # the persistant execution of things from the command directories
 823 #
 824 #
 825 # This allows perl programs to call functions dynamically
 826 #
 827 # This has been nicked directly from the perlembed pages
 828 #
 829 #require Devel::Symdump;
 830
 831 sub valid_package_name {
 832         my $string = shift;
 833         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 834
 835         $string =~ s|/|_|g;
 836         return "cmd_$string";
 837 }
 838
 839 #
 840 # this bit of magic finds a command in the offered directory
 841 sub find_cmd_name {
 842         my $path = shift;
 843         my $cmdname = shift;
 844         my $package = valid_package_name($cmdname);
 845         my $filename = "$path/$cmdname.pl";
 846         my $mtime = -M $filename;
 847
 848         # return if we can't find it
 849         $errstr = undef;
 850         unless (defined $mtime) {
 851                 $errstr = DXM::msg('e1');
 852                 return undef;
 853         }
 854
 855         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 856                 #we have compiled this subroutine already,
 857                 #it has not been updated on disk, nothing left to do
 858                 #print STDERR "already compiled $package->handler\n";
 859                 dbg("find_cmd_name: $package cached") if isdbg('command');
 860         } else {
 861
 862                 my $sub = readfilestr($filename);
 863                 unless ($sub) {
 864                         $errstr = "Syserr: can't open '$filename' $!";
 865                         return undef;
 866                 };
 867
 868                 #wrap the code into a subroutine inside our unique package
 869                 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}; );
 870
 871
 872                 if ($sub =~ m|\s*sub\s+handle\n|) {
 873                         $eval .= $sub;
 874                 } else {
 875                         $eval .= qq(sub handle { $sub });
 876                 }
 877
 878                 if (isdbg('eval')) {
 879                         my @list = split /\n/, $eval;
 880                         my $line;
 881                         for (@list) {
 882                                 dbg($_ . "\n") if isdbg('eval');
 883                         }
 884                 }
 885
 886                 # get rid of any existing sub and try to compile the new one
 887                 no strict 'refs';
 888
 889                 if (exists $Cache{$package}) {
 890                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 891                         undef $DXCommandmode::{"${package}::"};
 892                         delete $Cache{$package};
 893                 } else {
 894                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 895                 }
 896
 897                 eval $eval;
 898
 899                 $Cache{$package} = {mtime => $mtime } unless $@;
 900         }
 901
 902         return "DXCommandmode::$package";
 903 }
 904
 905 sub send
 906 {
 907         my $self = shift;
 908         if ($self->{gtk}) {
 909                 for (@_) {
 910                         $self->SUPER::send(dd(['cmd',$_]));
 911                 }
 912         } else {
 913                 $self->SUPER::send(@_);
 914         }
 915 }
 916
 917 sub local_send
 918 {
 919         my ($self, $let, $buf) = @_;
 920         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 921                 if ($self->{enhanced}) {
 922                         $self->send_later($let, $buf);
 923                 } else {
 924                         $self->send($buf);
 925                 }
 926         } else {
 927                 $self->delay($buf);
 928         }
 929 }
 930
 931 # send a talk message here
 932 sub talk
 933 {
 934         my ($self, $from, $to, $via, $line, $onode) = @_;
 935         $line =~ s/\\5E/\^/g;
 936         if ($self->{talk}) {
 937                 if ($self->{gtk}) {
 938                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 939                 } else {
 940                         $self->local_send('T', "$to de $from: $line");
 941                 }
 942         }
 943         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 944         # send a 'not here' message if required
 945         unless ($self->{here} && $from ne $to) {
 946                 my $key = "$to$from";
 947                 unless (exists $nothereslug{$key}) {
 948                         my ($ref, $dxchan);
 949                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 950                                 my $name = $self->user->name || $to;
 951                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 952                                 $nothereslug{$key} = $main::systime;
 953                                 $dxchan->talk($to, $from, undef, $s);
 954                         }
 955                 }
 956         }
 957 }
 958
 959 # send an announce
 960 sub announce
 961 {
 962         my $self = shift;
 963         my $line = shift;
 964         my $isolate = shift;
 965         my $to = shift;
 966         my $target = shift;
 967         my $text = shift;
 968         my ($filter, $hops);
 969
 970         if (!$self->{ann_talk} && $to ne $self->{call}) {
 971                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 972                 return if $call;
 973         }
 974
 975         if ($self->{annfilter}) {
 976                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 977                 return unless $filter;
 978         }
 979
 980         unless ($self->{ann}) {
 981                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 982         }
 983         return if $target eq 'SYSOP' && $self->{priv} < 5;
 984         my $buf;
 985         if ($self->{gtk}) {
 986                 $buf = dd(['ann', $to, $target, $text, @_])
 987         } else {
 988                 $buf = "$to$target de $_[0]: $text";
 989                 #$buf =~ s/\%5E/^/g;
 990                 $buf .= "\a\a" if $self->{beep};
 991         }
 992         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 993 }
 994
 995 # send a chat
 996 sub chat
 997 {
 998         my $self = shift;
 999         my $line = shift;
1000         my $isolate = shift;
1001         my $target = shift;
1002         my $to = shift;
1003         my $text = shift;
1004         my ($filter, $hops);
1005
1006         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
1007
1008         $text =~ s/^\#\d+ //;
1009         my $buf;
1010         if ($self->{gtk}) {
1011                 $buf = dd(['chat', $to, $target, $text, @_])
1012         } else {
1013                 $buf = "$target de $_[0]: $text";
1014                 #$buf =~ s/\%5E/^/g;
1015                 $buf .= "\a\a" if $self->{beep};
1016         }
1017         $self->local_send('C', $buf);
1018 }
1019
1020 sub format_dx_spot
1021 {
1022         my $self = shift;
1023
1024         my $t = ztime($_[2]);
1025         my ($slot1, $slot2) = ('', '');
1026
1027         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1028         my $c = $_[3];
1029         $c =~ s/\t/ /g;
1030         my $comment = substr (($c || ''), 0, $clth);
1031         $comment .= ' ' x ($clth - (length($comment)));
1032
1033     if (!$slot1 && $self->{user}->wantgrid) {
1034                 my $ref = DXUser::get_current($_[1]);
1035                 if ($ref && $ref->qra) {
1036                         $slot1 = ' ' . substr($ref->qra, 0, 4);
1037                 }
1038         }
1039         if (!$slot1 && $self->{user}->wantusstate) {
1040                 $slot1 = " $_[12]" if $_[12];
1041         }
1042         unless ($slot1) {
1043                 if ($self->{user}->wantdxitu) {
1044                         $slot1 = sprintf(" %2d", $_[8]) if defined $_[8];
1045                 } elsif ($self->{user}->wantdxcq) {
1046                         $slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
1047                 }
1048         }
1049         $comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
1050
1051     if (!$slot2 && $self->{user}->wantgrid) {
1052                 my $origin = $_[4];
1053                 $origin =~ s/-#$//;                     # sigh......
1054                 my $ref = DXUser::get_current($origin);
1055                 if ($ref && $ref->qra) {
1056                         $slot2 = ' ' . substr($ref->qra, 0, 4);
1057                 }
1058         }
1059         if (!$slot2 && $self->{user}->wantusstate) {
1060                 $slot2 = " $_[13]" if $_[13];
1061         }
1062         unless ($slot2) {
1063                 if ($self->{user}->wantdxitu) {
1064                         $slot2 = sprintf(" %2d", $_[10]) if defined $_[10];
1065                 } elsif ($self->{user}->wantdxcq) {
1066                         $slot2 = sprintf(" %2d", $_[11]) if defined $_[11];
1067                 }
1068         }
1069
1070         my $o = sprintf("%-9s", $_[4] . ':');
1071         my $qrg = sprintf "%8.1f", $_[0];
1072         if (length $qrg >= 9) {
1073                 while (length($o)+length($qrg) > 17 && $o =~ / $/) {
1074                         chop $o;
1075                 }
1076         }
1077         my $spot = sprintf "%-12s", $_[1];
1078         my $front = "DX de $o $qrg  $spot";
1079         while (length($front) > 38 && $front =~ /  $/) {
1080                 chop $front;
1081         }
1082
1083
1084         return sprintf "$front %-s $t$slot2", $comment;
1085 }
1086
1087
1088 # send a dx spot
1089 sub dx_spot
1090 {
1091         my $self = shift;
1092         my $line = shift;
1093         my $isolate = shift;
1094         return unless $self->{dx};
1095
1096         my ($filter, $hops);
1097
1098         if ($self->{spotsfilter}) {
1099                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1100                 return unless $filter;
1101         }
1102
1103         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1104
1105         my $buf;
1106         if ($self->{ve7cc}) {
1107                 $buf = VE7CC::dx_spot($self, @_);
1108         } elsif ($self->{gtk}) {
1109                 my ($dxloc, $byloc);
1110
1111                 my $ref = DXUser::get_current($_[4]);
1112                 if ($ref) {
1113                         $byloc = $ref->qra;
1114                         $byloc = substr($byloc, 0, 4) if $byloc;
1115                 }
1116
1117                 my $spot = $_[1];
1118                 $spot =~ s|/\w{1,4}$||;
1119                 $ref = DXUser::get_current($spot);
1120                 if ($ref) {
1121                         $dxloc = $ref->qra;
1122                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1123                 }
1124                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1125
1126         } else {
1127                 $buf = $self->format_dx_spot(@_);
1128                 $buf .= "\a\a" if $self->{beep};
1129                 #$buf =~ s/\%5E/^/g;
1130         }
1131
1132         $self->local_send('X', $buf);
1133 }
1134
1135 sub wwv
1136 {
1137         my $self = shift;
1138         my $line = shift;
1139         my $isolate = shift;
1140         my ($filter, $hops);
1141
1142         return unless $self->{wwv};
1143
1144         if ($self->{wwvfilter}) {
1145                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1146                 return unless $filter;
1147         }
1148
1149         my $buf;
1150         if ($self->{gtk}) {
1151                 $buf = dd(['wwv', @_])
1152         } else {
1153                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1154                 $buf .= "\a\a" if $self->{beep};
1155         }
1156
1157         $self->local_send('V', $buf);
1158 }
1159
1160 sub wcy
1161 {
1162         my $self = shift;
1163         my $line = shift;
1164         my $isolate = shift;
1165         my ($filter, $hops);
1166
1167         return unless $self->{wcy};
1168
1169         if ($self->{wcyfilter}) {
1170                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1171                 return unless $filter;
1172         }
1173
1174         my $buf;
1175         if ($self->{gtk}) {
1176                 $buf = dd(['wcy', @_])
1177         } else {
1178                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1179                 $buf .= "\a\a" if $self->{beep};
1180         }
1181         $self->local_send('Y', $buf);
1182 }
1183
1184 # broadcast debug stuff to all interested parties
1185 sub broadcast_debug
1186 {
1187         my $s = shift;                          # the line to be rebroadcast
1188
1189         foreach my $dxchan (DXChannel::get_all_users) {
1190                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1191                 if ($dxchan->{gtk}) {
1192                         $dxchan->send_later('L', dd(['db', $s]));
1193                 } else {
1194                         $dxchan->send_later('L', $s);
1195                 }
1196         }
1197 }
1198
1199 sub do_entry_stuff
1200 {
1201         my $self = shift;
1202         my $line = shift;
1203         my @out;
1204
1205         if ($self->state eq 'enterbody') {
1206                 my $loc = $self->{loc} || confess "local var gone missing" ;
1207                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1208                         no strict 'refs';
1209                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1210                         $self->func(undef);
1211                         $self->state('prompt');
1212                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1213                         push @out, $self->msg('m10');
1214                         delete $loc->{lines};
1215                         delete $self->{loc};
1216                         $self->func(undef);
1217                         $self->state('prompt');
1218                 } else {
1219                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1220                         # i.e. it ain't and end or abort, therefore store the line
1221                 }
1222         } else {
1223                 confess "Invalid state $self->{state}";
1224         }
1225         return @out;
1226 }
1227
1228 sub store_startup_script
1229 {
1230         my $self = shift;
1231         my $loc = $self->{loc} || confess "local var gone missing" ;
1232         my @out;
1233         my $call = $loc->{call} || confess "callsign gone missing";
1234         confess "lines array gone missing" unless ref $loc->{lines};
1235         my $r = Script::store($call, $loc->{lines});
1236         if (defined $r) {
1237                 if ($r) {
1238                         push @out, $self->msg('m19', $call, $r);
1239                 } else {
1240                         push @out, $self->msg('m20', $call);
1241                 }
1242         } else {
1243                 push @out, "error opening startup script $call $!";
1244         }
1245         return @out;
1246 }
1247
1248 # Import any commands contained in any files in import_cmd directory
1249 #
1250 # If the filename has a recogisable callsign as some delimited part
1251 # of it, then this is the user the command will be run as.
1252 #
1253 sub import_cmd
1254 {
1255         # are there any to do in this directory?
1256         return unless -d $cmdimportdir;
1257         unless (opendir(DIR, $cmdimportdir)) {
1258                 LogDbg('err', "can\'t open $cmdimportdir $!");
1259                 return;
1260         }
1261
1262         my @names = readdir(DIR);
1263         closedir(DIR);
1264         my $name;
1265
1266         return unless @names;
1267
1268         foreach $name (@names) {
1269                 next if $name =~ /^\./;
1270
1271                 my $s = Script->new($name, $cmdimportdir);
1272                 if ($s) {
1273                         LogDbg('DXCommand', "Run import cmd file $name");
1274                         my @cat = split /[^A-Za-z0-9]+/, $name;
1275                         my ($call) = grep {is_callsign(uc $_)} @cat;
1276                         $call ||= $main::mycall;
1277                         $call = uc $call;
1278                         my @out;
1279
1280
1281                         $s->inscript(0);        # switch off script checks
1282
1283                         if ($call eq $main::mycall) {
1284                                 @out = $s->run($main::me, 1);
1285                         } else {
1286                                 my $dxchan = DXChannel::get($call);
1287                             if ($dxchan) {
1288                                         @out = $s->run($dxchan, 1);
1289                                 } else {
1290                                         my $u = DXUser::get($call);
1291                                         if ($u) {
1292                                                 $dxchan = $main::me;
1293                                                 my $old = $dxchan->{call};
1294                                                 my $priv = $dxchan->{priv};
1295                                                 my $user = $dxchan->{user};
1296                                                 $dxchan->{call} = $call;
1297                                                 $dxchan->{priv} = $u->priv;
1298                                                 $dxchan->{user} = $u;
1299                                                 @out = $s->run($dxchan, 1);
1300                                                 $dxchan->{call} = $old;
1301                                                 $dxchan->{priv} = $priv;
1302                                                 $dxchan->{user} = $user;
1303                                         } else {
1304                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1305                                         }
1306                                 }
1307                         }
1308                         $s->erase;
1309                         for (@out) {
1310                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1311                         }
1312                 } else {
1313                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1314                         unlink "$cmdimportdir/$name";
1315                 }
1316         }
1317 }
1318
1319 sub print_find_reply
1320 {
1321         my ($self, $node, $target, $flag, $ms) = @_;
1322         my $sort = $flag == 2 ? "External" : "Local";
1323         $self->send("$sort $target found at $node in $ms ms" );
1324 }
1325
1326 # send the most relevant motd
1327 sub send_motd
1328 {
1329         my $self = shift;
1330         my $motd;
1331
1332         unless ($self->isregistered) {
1333                 $motd = "${main::motd}_nor_$self->{lang}";
1334                 $motd = "${main::motd}_nor" unless -e $motd;
1335         }
1336         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1337         $motd = $main::motd unless $motd && -e $motd;
1338         if ($self->conn->ax25) {
1339                 if ($motd) {
1340                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1341                 } else {
1342                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1343                 }
1344         }
1345         $self->send_file($motd) if -e $motd;
1346 }
1347
1348 # Punt off a long running command into a separate process
1349 #
1350 # This is called from commands to run some potentially long running
1351 # function. The process forks and then runs the function and returns
1352 # the result back to the cmd.
1353 #
1354 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1355 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1356 #       THE CURRENT CONTEXT!!
1357 #
1358 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1359 sub spawn_cmd
1360 {
1361         my $self = shift;
1362         my $line = shift;
1363         my $cmdref = shift;
1364         my $call = $self->{call};
1365         my %args = @_;
1366         my @out;
1367
1368         my $cb = delete $args{cb};
1369         my $prefix = delete $args{prefix};
1370         my $progress = delete $args{progress};
1371         my $args = delete $args{args} || [];
1372         my $t0 = [gettimeofday];
1373
1374         no strict 'refs';
1375
1376         # just behave normally if something has set the "one-shot" _nospawn in the channel
1377         if ($self->{_nospawn}) {
1378                 eval { @out = $cmdref->(@$args); };
1379                 if ($@) {
1380                         DXDebug::dbgprintring(25);
1381                         push @out, DXDebug::shortmess($@);
1382                 }
1383                 return @out;
1384         }
1385
1386         my $fc = DXSubprocess->new;
1387 #       $fc->serializer(\&encode_json);
1388 #       $fc->deserializer(\&decode_json);
1389         $fc->run(
1390                          sub {
1391                                  my $subpro = shift;
1392                                  if (isdbg('progress')) {
1393                                          my $s = qq{$call line: "$line"};
1394                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1395                                          dbg($s);
1396                                  }
1397                                  eval {
1398                                          ++$self->{_in_sub_process};
1399                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1400                                          @out = $cmdref->(@$args);
1401                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1402                                  };
1403                                  if ($@) {
1404                                          DXDebug::dbgprintring(25);
1405                                          push @out, DXDebug::shortmess($@);
1406                                  }
1407                                  return @out;
1408                          },
1409 #                        $args,
1410                          sub {
1411                                  my ($fc, $err, @res) = @_;
1412                                  my $dxchan = DXChannel::get($call);
1413                                  return unless $dxchan;
1414
1415                                  if ($err) {
1416                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1417                                          dbg($s) if isdbg('chan');
1418                                          $dxchan->send($s);
1419                                          return;
1420                                  }
1421                                  if ($cb) {
1422                                          # transform output if required
1423                                          @res = $cb->($dxchan, @res);
1424                                  }
1425                                  if (@res) {
1426                                          if (defined $prefix) {
1427                                                  $dxchan->send(map {"$prefix$_"} @res);
1428                                          } else {
1429                                                  $dxchan->send(@res);
1430                                          }
1431                                  }
1432                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1433                          });
1434
1435         return @out;
1436 }
1437
1438 sub user_count
1439 {
1440     return ($users, $maxusers);
1441 }
1442
1443 # alias localhost if required. This is designed to repress all localhost and other
1444 # internal interfaces to a fixed (outside) IPv4 or IPV6 address
1445 sub alias_localhost
1446 {
1447         my $hostname = shift;
1448         if ($hostname =~ /./) {
1449                 return $hostname unless $main::localhost_alias_ipv4;
1450                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv4 : $hostname;
1451         } elsif ($hostname =~ /:/) {
1452                 return $hostname unless $main::localhost_alias_ipv6;
1453                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv6 : $hostname;
1454         }
1455         return $hostname;
1456 }
1457
1458 1;
1459 __END__