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     $maxcmdlth
  54 );
  55
  56 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  57 %cmd_cache = ();                                # cache of short names
  58 $errstr = ();                                   # error string from eval
  59 %aliases = ();                                  # aliases for (parts of) commands
  60 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  61 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  62 $msgpolltime = 3600;                    # the time between polls for new messages
  63 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  64                                           # this does not exist as default, you need to create it manually
  65 $users = 0;                                       # no of users on this node currently
  66 $maxusers = 0;                            # max no users on this node for this run
  67
  68 $maxcmdlth = 512;                               # max length of incoming cmd line (including the command and any arguments
  69
  70 #
  71 # obtain a new connection this is derived from dxchannel
  72 #
  73
  74 sub new
  75 {
  76         my $self = DXChannel::alloc(@_);
  77
  78         # routing, this must go out here to prevent race condx
  79         my $pkg = shift;
  80         my $call = shift;
  81         #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  82         my $ipaddr = alias_localhost($self->hostname);
  83         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $ipaddr], );
  84
  85         # ALWAYS output the user (except if the updates not enabled)
  86         my $ref = Route::User::get($call);
  87         if ($ref) {
  88                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  89                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
  90         }
  91
  92         return $self;
  93 }
  94
  95 # this is how a a connection starts, you get a hello message and the motd with
  96 # possibly some other messages asking you to set various things up if you are
  97 # new (or nearly new and slacking) user.
  98
  99 sub start
 100 {
 101         my ($self, $line, $sort) = @_;
 102         my $user = $self->{user};
 103         my $call = $self->{call};
 104         my $name = $user->{name};
 105
 106         # log it
 107         my $host = $self->{conn}->peerhost;
 108         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
 109         $host ||= "unknown";
 110         $self->{hostname} = $host;
 111
 112         $self->{name} = $name ? $name : $call;
 113         $self->send($self->msg('l2',$self->{name}));
 114         $self->send("Capabilities: ve7cc rbn");
 115         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 116         $self->{priv} = $user->priv || 0;
 117         $self->{lang} = $user->lang || $main::lang || 'en';
 118         my $pagelth = $user->pagelth;
 119         $pagelth = $default_pagelth unless defined $pagelth;
 120         $self->{pagelth} = $pagelth;
 121         ($self->{width}) = $line =~ /\s*width=(\d+)/; $line =~ s/\s*width=\d+//;
 122         $self->{enhanced} = $line =~ /\s+enhanced/; $line =~ s/\s*enhanced//;
 123         if ($line =~ /host=/) {
 124                 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
 125                 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
 126                 unless ($h) {
 127                         ($h) = $line =~ /host=([\da..fA..F:]+)/;
 128                         $line =~ s/\s*host=[\da..fA..F:]+// if $h;
 129                 }
 130                 $self->{hostname} = $h if $h;
 131         }
 132         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 133         $self->{consort} = $line;       # save the connection type
 134
 135         LogDbg('DXCommand', "$call connected from $self->{hostname} cols $self->{width}" . ($self->{enhanced}?" enhanced":''));
 136
 137         # set some necessary flags on the user if they are connecting
 138         $self->{beep} = $user->wantbeep;
 139         $self->{ann} = $user->wantann;
 140         $self->{wwv} = $user->wantwwv;
 141         $self->{wcy} = $user->wantwcy;
 142         $self->{talk} = $user->wanttalk;
 143         $self->{wx} = $user->wantwx;
 144         $self->{dx} = $user->wantdx;
 145         $self->{logininfo} = $user->wantlogininfo;
 146         $self->{ann_talk} = $user->wantann_talk;
 147         $self->{wantrbn} = $user->wantrbn;
 148         $self->{here} = 1;
 149         $self->{prompt} = $user->prompt if $user->prompt;
 150         $self->{lastmsgpoll} = 0;
 151         $self->{rbnseeme} = $user->rbnseeme;
 152         RBN::add_seeme($call) if $self->{rbnseeme};
 153
 154         # sort out new dx spot stuff
 155         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 156         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 157         $user->wantusstate(0) unless defined $user->{wantusstate};
 158
 159         # sort out registration
 160         if ($main::reqreg == 2) {
 161                 $self->{registered} = !$user->registered;
 162         } else {
 163                 $self->{registered} = $user->registered;
 164         }
 165
 166         # establish slug queue, if required
 167         $self->{sluggedpcs} = [];
 168         $self->{isslugged} = $DXProt::pc92_slug_changes + $DXProt::last_pc92_slug + 5 if $DXProt::pc92_slug_changes;
 169         $self->{isslugged} = 0 if $self->{priv} || $user->registered || ($user->homenode && $user->homenode eq $main::mycall);
 170
 171         # send the relevant MOTD
 172         $self->send_motd;
 173
 174         # sort out privilege reduction
 175         $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};
 176
 177         # get the filters
 178         my $nossid = $call;
 179         $nossid =~ s/-\d+$//;
 180
 181         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 182                 || Filter::read_in('spots', $nossid, 0)
 183                         || Filter::read_in('spots', 'user_default', 0);
 184         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 185                 || Filter::read_in('wwv', $nossid, 0)
 186                         || Filter::read_in('wwv', 'user_default', 0);
 187         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 188                 || Filter::read_in('wcy', $nossid, 0)
 189                         || Filter::read_in('wcy', 'user_default', 0);
 190         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 191                 || Filter::read_in('ann', $nossid, 0)
 192                         || Filter::read_in('ann', 'user_default', 0) ;
 193         $self->{rbnfilter} = Filter::read_in('rbn', $call, 0)
 194                 || Filter::read_in('rbn', $nossid, 0)
 195                 || Filter::read_in('rbn', 'user_default', 0);
 196
 197         # clean up qra locators
 198         my $qra = $user->qra;
 199         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 200         unless ($qra) {
 201                 my $lat = $user->lat;
 202                 my $long = $user->long;
 203                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 204         }
 205
 206         # decide on echo
 207         my $echo = $user->wantecho;
 208         unless ($echo) {
 209                 $self->send_now('E', "0");
 210                 $self->send($self->msg('echow'));
 211                 $self->conn->echo($echo) if $self->conn->can('echo');
 212         }
 213
 214         $self->tell_login('loginu');
 215         $self->tell_buddies('loginb');
 216
 217         # is this a bad ip address?
 218         if (is_ipaddr($self->{hostname})) {
 219                 $self->{badip} = DXCIDR::find($self->{hostname});
 220         }
 221
 222         # do we need to send a forward/opernam?
 223         my $lastoper = $user->lastoper || 0;
 224         my $homenode = $user->homenode || "";
 225         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 226                 run_cmd($main::me, "forward/opernam $call");
 227                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 228         }
 229
 230         # run a script send the output to the punter
 231         my $script = new Script(lc $call) || new Script('user_default');
 232         $script->run($self) if $script;
 233
 234         # send cluster info
 235         $self->send($self->run_cmd("show/cluster"));
 236
 237         # send prompts for qth, name and things
 238         $self->send($self->msg('namee1')) if !$user->name;
 239         $self->send($self->msg('qthe1')) if !$user->qth;
 240         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 241         $self->send($self->msg('hnodee1')) if !$user->qth;
 242         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 243
 244         # send out any buddy messages for other people that are online
 245         foreach my $call (@{$user->buddies}) {
 246                 my $ref = Route::User::get($call);
 247                 if ($ref) {
 248                         foreach my $node ($ref->parents) {
 249                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 250                         }
 251                 }
 252         }
 253
 254         $self->lastmsgpoll($main::systime);
 255         $self->{user_interval} = $self->user->user_interval || $main::user_interval; # allow user to change idle time between prompts
 256         $self->prompt;
 257 }
 258
 259 #
 260 # This is the normal command prompt driver
 261 #
 262
 263 sub normal
 264 {
 265         my $self = shift;
 266         my $cmdline = shift;
 267         my @ans;
 268         my @bad;
 269
 270         # save this for them's that need it
 271         my $rawline = $cmdline;
 272
 273         # remove leading and trailing spaces
 274         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 275
 276         if ($self->{state} eq 'page') {
 277                 my $i = $self->{pagelth}-5;
 278                 my $ref = $self->{pagedata};
 279                 my $tot = @$ref;
 280
 281                 # abort if we get a line starting in with a
 282                 if ($cmdline =~ /^a/io) {
 283                         undef $ref;
 284                         $i = 0;
 285                 }
 286
 287                 # send a tranche of data
 288                 for (; $i > 0 && @$ref; --$i) {
 289                         my $line = shift @$ref;
 290                         $line =~ s/\s+$//o;     # why am having to do this?
 291                         $self->send($line);
 292                 }
 293
 294                 # reset state if none or else chuck out an intermediate prompt
 295                 if ($ref && @$ref) {
 296                         $tot -= $self->{pagelth};
 297                         $self->send($self->msg('page', $tot));
 298                 } else {
 299                         $self->state('prompt');
 300                 }
 301         } elsif ($self->{state} eq 'sysop') {
 302                 my $passwd = $self->{user}->passwd;
 303                 if ($passwd) {
 304                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 305                         my @l = @{$self->{passwd}};
 306                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 307                         if ($cmdline =~ /$str/) {
 308                                 $self->{priv} = $self->{user}->priv;
 309                         } else {
 310                                 $self->send($self->msg('sorry'));
 311                         }
 312                 } else {
 313                         $self->send($self->msg('sorry'));
 314                 }
 315                 $self->state('prompt');
 316         } elsif ($self->{state} eq 'passwd') {
 317                 my $passwd = $self->{user}->passwd;
 318                 if ($passwd && $cmdline eq $passwd) {
 319                         $self->send($self->msg('pw1'));
 320                         $self->state('passwd1');
 321                 } else {
 322                         $self->conn->{echo} = $self->conn->{decho};
 323                         delete $self->conn->{decho};
 324                         $self->send($self->msg('sorry'));
 325                         $self->state('prompt');
 326                 }
 327         } elsif ($self->{state} eq 'passwd1') {
 328                 $self->{passwd} = $cmdline;
 329                 $self->send($self->msg('pw2'));
 330                 $self->state('passwd2');
 331         } elsif ($self->{state} eq 'passwd2') {
 332                 if ($cmdline eq $self->{passwd}) {
 333                         $self->{user}->passwd($cmdline);
 334                         $self->send($self->msg('pw3'));
 335                 } else {
 336                         $self->send($self->msg('pw4'));
 337                 }
 338                 $self->conn->{echo} = $self->conn->{decho};
 339                 delete $self->conn->{decho};
 340                 $self->state('prompt');
 341         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 342                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 343                         for (@{$self->{talklist}}) {
 344                                 if ($self->{state} eq 'talk') {
 345                                         $self->send_talks($_,  $self->msg('talkend'));
 346                                 } else {
 347                                         $self->local_send('C', $self->msg('chatend', $_));
 348                                 }
 349                         }
 350                         $self->state('prompt');
 351                         delete $self->{talklist};
 352                 } elsif ($cmdline =~ m|^/+\w+|) {
 353                         $cmdline =~ s|^/||;
 354                         my $sendit = $cmdline =~ s|^/+||;
 355                         if (@bad = BadWords::check($cmdline)) {
 356                                 $self->badcount(($self->badcount||0) + @bad);
 357                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 358                         } else {
 359                                 my @in = $self->run_cmd($cmdline);
 360                                 $self->send_ans(@in);
 361                                 if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 362                                         foreach my $l (@in) {
 363                                                 for (@{$self->{talklist}}) {
 364                                                         if ($self->{state} eq 'talk') {
 365                                                                 $self->send_talks($_, $l);
 366                                                         } else {
 367                                                                 send_chats($self, $_, $l)
 368                                                         }
 369                                                 }
 370                                         }
 371                                 }
 372                         }
 373                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 374                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 375                         # send what has been said to whoever is in this person's talk list
 376                         if (@bad = BadWords::check($cmdline)) {
 377                                 $self->badcount(($self->badcount||0) + @bad);
 378                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 379                         } else {
 380                                 for (@{$self->{talklist}}) {
 381                                         if ($self->{state} eq 'talk') {
 382                                                 $self->send_talks($_, $rawline);
 383                                         } else {
 384                                                 send_chats($self, $_, $rawline);
 385                                         }
 386                                 }
 387                         }
 388                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 389                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 390                 } else {
 391                         # for safety
 392                         $self->state('prompt');
 393                 }
 394         } elsif (my $func = $self->{func}) {
 395                 no strict 'refs';
 396                 my @ans;
 397                 if (ref $self->{edit}) {
 398                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 399                 } else {
 400                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 401                 }
 402                 if ($@) {
 403                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 404                         delete $self->{func};
 405                         $self->state('prompt');
 406                         undef $@;
 407                 }
 408                 $self->send_ans(@ans);
 409         } else {
 410 #               if (@bad = BadWords::check($cmdline)) {
 411 #                       $self->badcount(($self->badcount||0) + @bad);
 412 #                       LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 413 #               } else {
 414                         $self->send_ans(run_cmd($self, $cmdline));
 415 #               }
 416         }
 417
 418         # check for excessive swearing
 419         if ($maxbadcount && $self->{badcount} && $self->{badcount} >= $maxbadcount) {
 420                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 421                 $self->disconnect;
 422                 return;
 423         }
 424
 425         # send a prompt only if we are in a prompt state
 426         $self->prompt() if $self->{state} =~ /^prompt/o;
 427 }
 428
 429 # send out the talk messages taking into account vias and connectivity
 430 sub send_talks
 431 {
 432         my ($self, $ent, $line) = @_;
 433
 434         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 435         $to = $ent unless $to;
 436         my $call = $via && $via ne '*' ? $via : $to;
 437         my $clref = Route::get($call);
 438         my $dxchan = $clref->dxchan if $clref;
 439         if ($dxchan) {
 440                 $dxchan->talk($self->{call}, $to, undef, $line);
 441         } else {
 442                 $self->send($self->msg('disc2', $via ? $via : $to));
 443                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 444                 if (@l) {
 445                         $self->{talklist} = \@l;
 446                 } else {
 447                         delete $self->{talklist};
 448                         $self->state('prompt');
 449                 }
 450         }
 451 }
 452
 453 sub send_chats
 454 {
 455         my $self = shift;
 456         my $target = shift;
 457         my $text = shift;
 458
 459         my $msgid = DXProt::nextchatmsgid();
 460         $text = "#$msgid $text";
 461         my $ipaddr = alias_localhost($self->hostname || '127.0.0.1');
 462         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text, undef, $ipaddr));
 463 }
 464
 465 sub special_prompt
 466 {
 467         my $self = shift;
 468         my $prompt = shift;
 469         my @call;
 470         for (@{$self->{talklist}}) {
 471                 my ($to, $via) = /(\S+)>(\S+)/;
 472                 $to = $_ unless $to;
 473                 push @call, $to;
 474         }
 475         return $self->msg($prompt, join(',', @call));
 476 }
 477
 478 sub talk_prompt
 479 {
 480         my $self = shift;
 481         return $self->special_prompt('talkprompt');
 482 }
 483
 484 sub chat_prompt
 485 {
 486         my $self = shift;
 487         return $self->special_prompt('chatprompt');
 488 }
 489
 490 #
 491 # send a load of stuff to a command user with page prompting
 492 # and stuff
 493 #
 494
 495 sub send_ans
 496 {
 497         my $self = shift;
 498
 499         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 500                 my $i;
 501                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 502                         my $line = shift @_;
 503                         $line =~ s/\s+$//o;     # why am having to do this?
 504                         $self->send($line);
 505                 }
 506                 $self->{pagedata} =  [ @_ ];
 507                 $self->state('page');
 508                 $self->send($self->msg('page', scalar @_));
 509         } else {
 510                 for (@_) {
 511                         if (defined $_) {
 512                                 $self->send($_);
 513                         } else {
 514                                 $self->send('');
 515                         }
 516                 }
 517         }
 518 }
 519
 520 #
 521 # this is the thing that preps for running the command, it is done like this for the
 522 # benefit of remote command execution
 523 #
 524
 525 sub run_cmd
 526 {
 527         my $self = shift;
 528         my $user = $self->{user};
 529         my $call = $self->{call};
 530         my $cmdline = shift;
 531         my @ans;
 532
 533         return () if length $cmdline == 0;
 534
 535         # split the command line up into parts, the first part is the command
 536         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 537         $args = "" unless defined $args;
 538
 539         if ($cmd) {
 540
 541                 # strip out // on command only
 542                 $cmd =~ s|//+|/|g;
 543
 544                 # check for length of whole command line and any invalid characters
 545                 if (length $cmdline > $maxcmdlth || $cmd =~ m|\.| || $cmd !~ m|^\w+(?:/\w+){0,1}(?:/\d+)?$|) {
 546                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 547                         return $self->_error_out('e40');
 548                 }
 549
 550                 my ($path, $fcmd);
 551
 552                 dbg("cmd: $cmd") if isdbg('command');
 553
 554                 # alias it if possible
 555                 my $acmd = CmdAlias::get_cmd($cmd);
 556                 if ($acmd) {
 557                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 558                         $args = "" unless defined $args;
 559                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 560                 }
 561
 562                 # first expand out the entry to a command
 563                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 564                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 565
 566                 if ($path && $cmd) {
 567                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 568
 569                         my $package = find_cmd_name($path, $fcmd);
 570                         return ($@) if $@;
 571
 572                         if ($package && $self->can("${package}::handle")) {
 573                                 no strict 'refs';
 574                                 dbg("cmd: package $package") if isdbg('command');
 575 #                               Log('cmd', "$self->{call} on $self->{hostname} : '$cmd $args'");
 576                                 my $t0 = [gettimeofday];
 577                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 578                                 if ($@) {
 579                                         DXDebug::dbgprintring(25);
 580                                         return (DXDebug::shortmess($@));
 581                                 }
 582                                 if (isdbg('progress')) {
 583                                         my $msecs = _diffms($t0);
 584                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 585                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 586                                 }
 587                         } else {
 588                                 dbg("cmd: $package not present") if isdbg('command');
 589                                 return $self->_error_out('e1');
 590                         }
 591                 } else {
 592                         LogDbg('DXCommand', "$self->{call} cmd: '$cmd' not found");
 593                         return $self->_error_out('e1');
 594                 }
 595         }
 596
 597         my $ok = shift @ans;
 598         if ($ok) {
 599                 delete $self->{errors};
 600         } else {
 601                 if ($self != $main::me && ++$self->{errors} > $DXChannel::maxerrors) {
 602                         $self->send($self->msg('e26'));
 603                         $self->disconnect;
 604                         return ();
 605                 }
 606         }
 607         return map {s/([^\s])\s+$/$1/; $_} @ans;
 608 }
 609
 610 #
 611 # This is called from inside the main cluster processing loop and is used
 612 # for despatching commands that are doing some long processing job
 613 #
 614 sub process
 615 {
 616         my $t = time;
 617         my @dxchan = DXChannel::get_all();
 618         my $dxchan;
 619
 620         $users = 0;
 621         foreach $dxchan (@dxchan) {
 622                 next unless $dxchan->is_user;
 623
 624                 # send a outstanding message prompt if required
 625                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 626                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 627                         $dxchan->lastmsgpoll($t);
 628                 }
 629
 630                 # send a prompt if no activity out on this channel
 631                 if ($t >= $dxchan->t + $dxchan->{user_interval}) {
 632                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 633                         $dxchan->t($t);
 634                 }
 635                 ++$users;
 636                 $maxusers = $users if $users > $maxusers;
 637
 638                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 639                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 640                                 if ($ref->[0] == 61) {
 641                                         Spot::add(@{$ref->[2]});
 642                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 643                                 }
 644                         }
 645
 646                         $dxchan->{isslugged} = 0;
 647                         $dxchan->{sluggedpcs} = [];
 648                 }
 649         }
 650
 651         import_cmd();
 652 }
 653
 654 #
 655 # finish up a user context
 656 #
 657 sub disconnect
 658 {
 659         my $self = shift;
 660         my $call = $self->call;
 661
 662         return if $self->{disconnecting}++;
 663
 664         delete $self->{senddbg};
 665         RBN::del_seeme($call);
 666
 667         my $uref = Route::User::get($call);
 668         my @rout;
 669         if ($uref) {
 670 #               @rout = $main::routeroot->del_user($uref);
 671                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 672
 673                 # dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 674
 675                 # issue a pc17 to everybody interested
 676                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 677                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
 678         } else {
 679                 confess "trying to disconnect a non existant user $call";
 680         }
 681
 682         # I was the last node visited
 683     $self->user->node($main::mycall);
 684
 685         # send info to all logged in thingies
 686         $self->tell_login('logoutu');
 687         $self->tell_buddies('logoutb');
 688
 689         LogDbg('DXCommand', "$call disconnected");
 690
 691         $self->SUPER::disconnect;
 692 }
 693
 694 #
 695 # short cut to output a prompt
 696 #
 697
 698 sub prompt
 699 {
 700         my $self = shift;
 701
 702         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 703
 704         my $call = $self->call;
 705         my $date = cldate($main::systime);
 706         my $time = ztime($main::systime);
 707         my $prompt = $self->{prompt} || $self->msg('pr');
 708
 709         $call = "($call)" unless $self->here;
 710         $prompt =~ s/\%C/$call/g;
 711         $prompt =~ s/\%D/$date/g;
 712         $prompt =~ s/\%T/$time/g;
 713         $prompt =~ s/\%M/$main::mycall/g;
 714
 715         $self->send($prompt);
 716 }
 717
 718 # broadcast a message to all users [except those mentioned after buffer]
 719 sub broadcast
 720 {
 721         my $pkg = shift;                        # ignored
 722         my $s = shift;                          # the line to be rebroadcast
 723
 724     foreach my $dxchan (DXChannel::get_all()) {
 725                 next unless $dxchan->is_user; # only interested in user channels
 726                 next if grep $dxchan == $_, @_;
 727                 $dxchan->send($s);                      # send it
 728         }
 729 }
 730
 731 # gimme all the users
 732 sub get_all
 733 {
 734         goto &DXChannel::get_all_users;
 735 }
 736
 737 # run a script for this user
 738 sub run_script
 739 {
 740         my $self = shift;
 741         my $silent = shift || 0;
 742
 743 }
 744
 745 #
 746 # search for the command in the cache of short->long form commands
 747 #
 748
 749 sub search
 750 {
 751         my ($path, $short_cmd, $suffix) = @_;
 752         my ($apath, $acmd);
 753
 754         # commands are lower case
 755         $short_cmd = lc $short_cmd;
 756         dbg("command: $path $short_cmd\n") if isdbg('command');
 757
 758         # do some checking for funny characters
 759         return () if $short_cmd =~ /\/$/;
 760
 761         # return immediately if we have it
 762         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 763         if ($apath && $acmd) {
 764                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 765                 return ($apath, $acmd);
 766         }
 767
 768         # if not guess
 769         my @parts = split '/', $short_cmd;
 770         my $dirfn;
 771         my $curdir = $path;
 772
 773         while (my $p = shift @parts) {
 774                 opendir(D, $curdir) or confess "can't open $curdir $!";
 775                 my @ls = readdir D;
 776                 closedir D;
 777
 778                 # if this isn't the last part
 779                 if (@parts) {
 780                         my $found;
 781                         foreach my $l (sort @ls) {
 782                                 next if $l =~ /^\./;
 783                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 784                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 785                                         $dirfn .= "$l/";
 786                                         $curdir .= "/$l";
 787                                         $found++;
 788                                         last;
 789                                 }
 790                         }
 791                         # only proceed if we find the directory asked for
 792                         return () unless $found;
 793                 } else {
 794                         foreach my $l (sort @ls) {
 795                                 next if $l =~ /^\./;
 796                                 next unless $l =~ /\.$suffix$/;
 797                                 if ($p eq substr($l, 0, length $p)) {
 798                                         $l =~ s/\.$suffix$//;
 799                                         $dirfn = "" unless $dirfn;
 800                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 801                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 802                                         return ($path, "$dirfn$l");
 803                                 }
 804                         }
 805                 }
 806         }
 807
 808         return ();
 809 }
 810
 811 # clear the command name cache
 812 sub clear_cmd_cache
 813 {
 814         no strict 'refs';
 815
 816         for my $k (keys %Cache) {
 817                 unless ($k =~ /cmd_cache/) {
 818                         dbg("Undefining cmd $k") if isdbg('command');
 819                         undef $DXCommandmode::{"${k}::"};
 820                 }
 821         }
 822         %cmd_cache = ();
 823         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 824 }
 825
 826 #
 827 # the persistant execution of things from the command directories
 828 #
 829 #
 830 # This allows perl programs to call functions dynamically
 831 #
 832 # This has been nicked directly from the perlembed pages
 833 #
 834 #require Devel::Symdump;
 835
 836 sub valid_package_name {
 837         my $string = shift;
 838         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 839
 840         $string =~ s|/|_|g;
 841         return "cmd_$string";
 842 }
 843
 844 #
 845 # this bit of magic finds a command in the offered directory
 846 sub find_cmd_name {
 847         my $path = shift;
 848         my $cmdname = shift;
 849         my $package = valid_package_name($cmdname);
 850         my $filename = "$path/$cmdname.pl";
 851         my $mtime = -M $filename;
 852
 853         # return if we can't find it
 854         $errstr = undef;
 855         unless (defined $mtime) {
 856                 $errstr = DXM::msg('e1');
 857                 return undef;
 858         }
 859
 860         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 861                 #we have compiled this subroutine already,
 862                 #it has not been updated on disk, nothing left to do
 863                 #print STDERR "already compiled $package->handler\n";
 864                 dbg("find_cmd_name: $package cached") if isdbg('command');
 865         } else {
 866
 867                 my $sub = readfilestr($filename);
 868                 unless ($sub) {
 869                         $errstr = "Syserr: can't open '$filename' $!";
 870                         return undef;
 871                 };
 872
 873                 #wrap the code into a subroutine inside our unique package
 874                 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}; );
 875
 876
 877                 if ($sub =~ m|\s*sub\s+handle\n|) {
 878                         $eval .= $sub;
 879                 } else {
 880                         $eval .= qq(sub handle { $sub });
 881                 }
 882
 883                 if (isdbg('eval')) {
 884                         my @list = split /\n/, $eval;
 885                         my $line;
 886                         for (@list) {
 887                                 dbg($_ . "\n") if isdbg('eval');
 888                         }
 889                 }
 890
 891                 # get rid of any existing sub and try to compile the new one
 892                 no strict 'refs';
 893
 894                 if (exists $Cache{$package}) {
 895                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 896                         undef $DXCommandmode::{"${package}::"};
 897                         delete $Cache{$package};
 898                 } else {
 899                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 900                 }
 901
 902                 eval $eval;
 903
 904                 $Cache{$package} = {mtime => $mtime } unless $@;
 905         }
 906
 907         return "DXCommandmode::$package";
 908 }
 909
 910 sub send
 911 {
 912         my $self = shift;
 913         if ($self->{gtk}) {
 914                 for (@_) {
 915                         $self->SUPER::send(dd(['cmd',$_]));
 916                 }
 917         } else {
 918                 $self->SUPER::send(@_);
 919         }
 920 }
 921
 922 sub local_send
 923 {
 924         my ($self, $let, $buf) = @_;
 925         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 926                 if ($self->{enhanced}) {
 927                         $self->send_later($let, $buf);
 928                 } else {
 929                         $self->send($buf);
 930                 }
 931         } else {
 932                 $self->delay($buf);
 933         }
 934 }
 935
 936 # send a talk message here
 937 sub talk
 938 {
 939         my ($self, $from, $to, $via, $line, $onode) = @_;
 940         $line =~ s/\\5E/\^/g;
 941         if ($self->{talk}) {
 942                 if ($self->{gtk}) {
 943                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 944                 } else {
 945                         $self->local_send('T', "$to de $from: $line");
 946                 }
 947         }
 948         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 949         # send a 'not here' message if required
 950         unless ($self->{here} && $from ne $to) {
 951                 my $key = "$to$from";
 952                 unless (exists $nothereslug{$key}) {
 953                         my ($ref, $dxchan);
 954                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 955                                 my $name = $self->user->name || $to;
 956                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 957                                 $nothereslug{$key} = $main::systime;
 958                                 $dxchan->talk($to, $from, undef, $s);
 959                         }
 960                 }
 961         }
 962 }
 963
 964 # send an announce
 965 sub announce
 966 {
 967         my $self = shift;
 968         my $line = shift;
 969         my $isolate = shift;
 970         my $to = shift;
 971         my $target = shift;
 972         my $text = shift;
 973         my ($filter, $hops);
 974
 975         if (!$self->{ann_talk} && $to ne $self->{call}) {
 976                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 977                 return if $call;
 978         }
 979
 980         if ($self->{annfilter}) {
 981                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 982                 return unless $filter;
 983         }
 984
 985         unless ($self->{ann}) {
 986                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 987         }
 988         return if $target eq 'SYSOP' && $self->{priv} < 5;
 989         my $buf;
 990         if ($self->{gtk}) {
 991                 $buf = dd(['ann', $to, $target, $text, @_])
 992         } else {
 993                 $buf = "$to$target de $_[0]: $text";
 994                 #$buf =~ s/\%5E/^/g;
 995                 $buf .= "\a\a" if $self->{beep};
 996         }
 997         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 998 }
 999
1000 # send a chat
1001 sub chat
1002 {
1003         my $self = shift;
1004         my $line = shift;
1005         my $isolate = shift;
1006         my $target = shift;
1007         my $to = shift;
1008         my $text = shift;
1009         my ($filter, $hops);
1010
1011         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
1012
1013         $text =~ s/^\#\d+ //;
1014         my $buf;
1015         if ($self->{gtk}) {
1016                 $buf = dd(['chat', $to, $target, $text, @_])
1017         } else {
1018                 $buf = "$target de $_[0]: $text";
1019                 #$buf =~ s/\%5E/^/g;
1020                 $buf .= "\a\a" if $self->{beep};
1021         }
1022         $self->local_send('C', $buf);
1023 }
1024
1025 sub format_dx_spot
1026 {
1027         my $self = shift;
1028
1029         my $t = ztime($_[2]);
1030         my ($slot1, $slot2) = ('', '');
1031
1032         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1033         my $c = $_[3];
1034         $c =~ s/\t/ /g;
1035         my $comment = substr (($c || ''), 0, $clth);
1036         $comment .= ' ' x ($clth - (length($comment)));
1037
1038         if ($self->{user}) {            # to allow the standalone program 'showdx' to work
1039                 if (!$slot1 && $self->{user}->wantgrid) {
1040                         my $ref = DXUser::get_current($_[1]);
1041                         if ($ref && $ref->qra) {
1042                                 $slot1 = ' ' . substr($ref->qra, 0, 4);
1043                         }
1044                 }
1045                 if (!$slot1 && $self->{user}->wantusstate) {
1046                         $slot1 = " $_[12]" if $_[12];
1047                 }
1048                 unless ($slot1) {
1049                         if ($self->{user}->wantdxitu) {
1050                                 $slot1 = sprintf(" %2d", $_[8]) if defined $_[8];
1051                         }
1052                         elsif ($self->{user}->wantdxcq) {
1053                                 $slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
1054                         }
1055                 }
1056                 $comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
1057
1058                 if (!$slot2 && $self->{user}->wantgrid) {
1059                         my $origin = $_[4];
1060                         $origin =~ s/-#$//;     # sigh......
1061                         my $ref = DXUser::get_current($origin);
1062                         if ($ref && $ref->qra) {
1063                                 $slot2 = ' ' . substr($ref->qra, 0, 4);
1064                         }
1065                 }
1066                 if (!$slot2 && $self->{user}->wantusstate) {
1067                         $slot2 = " $_[13]" if $_[13];
1068                 }
1069                 unless ($slot2) {
1070                         if ($self->{user}->wantdxitu) {
1071                                 $slot2 = sprintf(" %2d", $_[10]) if defined $_[10];
1072                         }
1073                         elsif ($self->{user}->wantdxcq) {
1074                                 $slot2 = sprintf(" %2d", $_[11]) if defined $_[11];
1075                         }
1076                 }
1077         }
1078
1079         my $o = sprintf("%-9s", $_[4] . ':');
1080         my $qrg = sprintf "%8.1f", $_[0];
1081         if (length $qrg >= 9) {
1082                 while (length($o)+length($qrg) > 17 && $o =~ / $/) {
1083                         chop $o;
1084                 }
1085         }
1086         my $spot = sprintf "%-12s", $_[1];
1087         my $front = "DX de $o $qrg  $spot";
1088         while (length($front) > 38 && $front =~ /  $/) {
1089                 chop $front;
1090         }
1091
1092
1093         return sprintf "$front %-s $t$slot2", $comment;
1094 }
1095
1096
1097 # send a dx spot
1098 sub dx_spot
1099 {
1100         my $self = shift;
1101         my $line = shift;
1102         my $isolate = shift;
1103         return unless $self->{dx};
1104
1105         my ($filter, $hops);
1106
1107         if ($self->{spotsfilter}) {
1108                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1109                 return unless $filter;
1110         }
1111
1112         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1113
1114         my $buf;
1115         if ($self->{ve7cc}) {
1116                 $buf = VE7CC::dx_spot($self, @_);
1117         } elsif ($self->{gtk}) {
1118                 my ($dxloc, $byloc);
1119
1120                 my $ref = DXUser::get_current($_[4]);
1121                 if ($ref) {
1122                         $byloc = $ref->qra;
1123                         $byloc = substr($byloc, 0, 4) if $byloc;
1124                 }
1125
1126                 my $spot = $_[1];
1127                 $spot =~ s|/\w{1,4}$||;
1128                 $ref = DXUser::get_current($spot);
1129                 if ($ref) {
1130                         $dxloc = $ref->qra;
1131                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1132                 }
1133                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1134
1135         } else {
1136                 $buf = $self->format_dx_spot(@_);
1137                 $buf .= "\a\a" if $self->{beep};
1138                 #$buf =~ s/\%5E/^/g;
1139         }
1140
1141         $self->local_send('X', $buf);
1142 }
1143
1144 sub wwv
1145 {
1146         my $self = shift;
1147         my $line = shift;
1148         my $isolate = shift;
1149         my ($filter, $hops);
1150
1151         return unless $self->{wwv};
1152
1153         if ($self->{wwvfilter}) {
1154                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1155                 return unless $filter;
1156         }
1157
1158         my $buf;
1159         if ($self->{gtk}) {
1160                 $buf = dd(['wwv', @_])
1161         } else {
1162                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1163                 $buf .= "\a\a" if $self->{beep};
1164         }
1165
1166         $self->local_send('V', $buf);
1167 }
1168
1169 sub wcy
1170 {
1171         my $self = shift;
1172         my $line = shift;
1173         my $isolate = shift;
1174         my ($filter, $hops);
1175
1176         return unless $self->{wcy};
1177
1178         if ($self->{wcyfilter}) {
1179                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1180                 return unless $filter;
1181         }
1182
1183         my $buf;
1184         if ($self->{gtk}) {
1185                 $buf = dd(['wcy', @_])
1186         } else {
1187                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1188                 $buf .= "\a\a" if $self->{beep};
1189         }
1190         $self->local_send('Y', $buf);
1191 }
1192
1193 # broadcast debug stuff to all interested parties
1194 sub broadcast_debug
1195 {
1196         my $s = shift;                          # the line to be rebroadcast
1197
1198         foreach my $dxchan (DXChannel::get_all_users) {
1199                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1200                 if ($dxchan->{gtk}) {
1201                         $dxchan->send_later('L', dd(['db', $s]));
1202                 } else {
1203                         $dxchan->send_later('L', $s);
1204                 }
1205         }
1206 }
1207
1208 sub do_entry_stuff
1209 {
1210         my $self = shift;
1211         my $line = shift;
1212         my @out;
1213
1214         if ($self->state eq 'enterbody') {
1215                 my $loc = $self->{loc} || confess "local var gone missing" ;
1216                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1217                         no strict 'refs';
1218                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1219                         $self->func(undef);
1220                         $self->state('prompt');
1221                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1222                         push @out, $self->msg('m10');
1223                         delete $loc->{lines};
1224                         delete $self->{loc};
1225                         $self->func(undef);
1226                         $self->state('prompt');
1227                 } else {
1228                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1229                         # i.e. it ain't and end or abort, therefore store the line
1230                 }
1231         } else {
1232                 confess "Invalid state $self->{state}";
1233         }
1234         return @out;
1235 }
1236
1237 sub store_startup_script
1238 {
1239         my $self = shift;
1240         my $loc = $self->{loc} || confess "local var gone missing" ;
1241         my @out;
1242         my $call = $loc->{call} || confess "callsign gone missing";
1243         confess "lines array gone missing" unless ref $loc->{lines};
1244         my $r = Script::store($call, $loc->{lines});
1245         if (defined $r) {
1246                 if ($r) {
1247                         push @out, $self->msg('m19', $call, $r);
1248                 } else {
1249                         push @out, $self->msg('m20', $call);
1250                 }
1251         } else {
1252                 push @out, "error opening startup script $call $!";
1253         }
1254         return @out;
1255 }
1256
1257 # Import any commands contained in any files in import_cmd directory
1258 #
1259 # If the filename has a recogisable callsign as some delimited part
1260 # of it, then this is the user the command will be run as.
1261 #
1262 sub import_cmd
1263 {
1264         # are there any to do in this directory?
1265         return unless -d $cmdimportdir;
1266         unless (opendir(DIR, $cmdimportdir)) {
1267                 LogDbg('err', "can\'t open $cmdimportdir $!");
1268                 return;
1269         }
1270
1271         my @names = readdir(DIR);
1272         closedir(DIR);
1273         my $name;
1274
1275         return unless @names;
1276
1277         foreach $name (@names) {
1278                 next if $name =~ /^\./;
1279
1280                 my $s = Script->new($name, $cmdimportdir);
1281                 if ($s) {
1282                         LogDbg('DXCommand', "Run import cmd file $name");
1283                         my @cat = split /[^A-Za-z0-9]+/, $name;
1284                         my ($call) = grep {is_callsign(uc $_)} @cat;
1285                         $call ||= $main::mycall;
1286                         $call = uc $call;
1287                         my @out;
1288
1289
1290                         $s->inscript(0);        # switch off script checks
1291
1292                         if ($call eq $main::mycall) {
1293                                 @out = $s->run($main::me, 1);
1294                         } else {
1295                                 my $dxchan = DXChannel::get($call);
1296                             if ($dxchan) {
1297                                         @out = $s->run($dxchan, 1);
1298                                 } else {
1299                                         my $u = DXUser::get($call);
1300                                         if ($u) {
1301                                                 $dxchan = $main::me;
1302                                                 my $old = $dxchan->{call};
1303                                                 my $priv = $dxchan->{priv};
1304                                                 my $user = $dxchan->{user};
1305                                                 $dxchan->{call} = $call;
1306                                                 $dxchan->{priv} = $u->priv;
1307                                                 $dxchan->{user} = $u;
1308                                                 @out = $s->run($dxchan, 1);
1309                                                 $dxchan->{call} = $old;
1310                                                 $dxchan->{priv} = $priv;
1311                                                 $dxchan->{user} = $user;
1312                                         } else {
1313                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1314                                         }
1315                                 }
1316                         }
1317                         $s->erase;
1318                         for (@out) {
1319                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1320                         }
1321                 } else {
1322                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1323                         unlink "$cmdimportdir/$name";
1324                 }
1325         }
1326 }
1327
1328 sub print_find_reply
1329 {
1330         my ($self, $node, $target, $flag, $ms) = @_;
1331         my $sort = $flag == 2 ? "External" : "Local";
1332         $self->send("$sort $target found at $node in $ms ms" );
1333 }
1334
1335 # send the most relevant motd
1336 sub send_motd
1337 {
1338         my $self = shift;
1339         my $motd;
1340
1341         unless ($self->isregistered) {
1342                 $motd = "${main::motd}_nor_$self->{lang}";
1343                 $motd = "${main::motd}_nor" unless -e $motd;
1344         }
1345         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1346         $motd = $main::motd unless $motd && -e $motd;
1347         if ($self->conn->ax25) {
1348                 if ($motd) {
1349                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1350                 } else {
1351                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1352                 }
1353         }
1354         $self->send_file($motd) if -e $motd;
1355 }
1356
1357 # Punt off a long running command into a separate process
1358 #
1359 # This is called from commands to run some potentially long running
1360 # function. The process forks and then runs the function and returns
1361 # the result back to the cmd.
1362 #
1363 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1364 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1365 #       THE CURRENT CONTEXT!!
1366 #
1367 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1368 sub spawn_cmd
1369 {
1370         my $self = shift;
1371         my $line = shift;
1372         my $cmdref = shift;
1373         my $call = $self->{call};
1374         my %args = @_;
1375         my @out;
1376
1377         my $cb = delete $args{cb};
1378         my $prefix = delete $args{prefix};
1379         my $progress = delete $args{progress};
1380         my $args = delete $args{args} || [];
1381         my $t0 = [gettimeofday];
1382
1383         no strict 'refs';
1384
1385         # just behave normally if something has set the "one-shot" _nospawn in the channel
1386         if ($self->{_nospawn} || $main::is_win == 1) {
1387                 eval { @out = $cmdref->(@$args); };
1388                 if ($@) {
1389                         DXDebug::dbgprintring(25);
1390                         push @out, DXDebug::shortmess($@);
1391                 }
1392                 return @out;
1393         }
1394
1395         my $fc = DXSubprocess->new;
1396 #       $fc->serializer(\&encode_json);
1397 #       $fc->deserializer(\&decode_json);
1398         $fc->run(
1399                          sub {
1400                                  my $subpro = shift;
1401                                  if (isdbg('progress')) {
1402                                          my $s = qq{$call line: "$line"};
1403                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1404                                          dbg($s);
1405                                  }
1406                                  eval {
1407                                          ++$self->{_in_sub_process};
1408                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1409                                          @out = $cmdref->(@$args);
1410                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1411                                  };
1412                                  if ($@) {
1413                                          DXDebug::dbgprintring(25);
1414                                          push @out, DXDebug::shortmess($@);
1415                                  }
1416                                  return @out;
1417                          },
1418 #                        $args,
1419                          sub {
1420                                  my ($fc, $err, @res) = @_;
1421                                  my $dxchan = DXChannel::get($call);
1422                                  return unless $dxchan;
1423
1424                                  if ($err) {
1425                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1426                                          dbg($s) if isdbg('chan');
1427                                          $dxchan->send($s);
1428                                          return;
1429                                  }
1430                                  if ($cb) {
1431                                          # transform output if required
1432                                          @res = $cb->($dxchan, @res);
1433                                  }
1434                                  if (@res) {
1435                                          if (defined $prefix) {
1436                                                  $dxchan->send(map {"$prefix$_"} @res);
1437                                          } else {
1438                                                  $dxchan->send(@res);
1439                                          }
1440                                  }
1441                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1442                          });
1443
1444         return @out;
1445 }
1446
1447 sub user_count
1448 {
1449     return ($users, $maxusers);
1450 }
1451
1452 # alias localhost if required. This is designed to repress all localhost and other
1453 # internal interfaces to a fixed (outside) IPv4 or IPV6 address
1454 sub alias_localhost
1455 {
1456         my $hostname = shift;
1457         if ($hostname =~ /./) {
1458                 return $hostname unless $main::localhost_alias_ipv4;
1459                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv4 : $hostname;
1460         } elsif ($hostname =~ /:/) {
1461                 return $hostname unless $main::localhost_alias_ipv6;
1462                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv6 : $hostname;
1463         }
1464         return $hostname;
1465 }
1466
1467 1;
1468 __END__