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