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 @cmd = split /\s*\\n\s*/, $cmdline;
 360                                 foreach my $l (@cmd) {
 361                                         my @in = $self->run_cmd($l);
 362                                         $self->send_ans(@in);
 363                                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 364                                                 foreach my $l (@in) {
 365                                                         for (@{$self->{talklist}}) {
 366                                                                 if ($self->{state} eq 'talk') {
 367                                                                         $self->send_talks($_, $l);
 368                                                                 }
 369                                                                 else {
 370                                                                         send_chats($self, $_, $l)
 371                                                                 }
 372                                                         }
 373                                                 }
 374                                         }
 375                                 }
 376                         }
 377                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 378                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 379                         # send what has been said to whoever is in this person's talk list
 380                         if (@bad = BadWords::check($cmdline)) {
 381                                 $self->badcount(($self->badcount||0) + @bad);
 382                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 383                         } else {
 384                                 for (@{$self->{talklist}}) {
 385                                         if ($self->{state} eq 'talk') {
 386                                                 $self->send_talks($_, $rawline);
 387                                         } else {
 388                                                 send_chats($self, $_, $rawline);
 389                                         }
 390                                 }
 391                         }
 392                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 393                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 394                 } else {
 395                         # for safety
 396                         $self->state('prompt');
 397                 }
 398         } elsif (my $func = $self->{func}) {
 399                 no strict 'refs';
 400                 my @ans;
 401                 if (ref $self->{edit}) {
 402                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 403                 } else {
 404                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 405                 }
 406                 if ($@) {
 407                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 408                         delete $self->{func};
 409                         $self->state('prompt');
 410                         undef $@;
 411                 }
 412                 $self->send_ans(@ans);
 413         } else {
 414 #               if (@bad = BadWords::check($cmdline)) {
 415 #                       $self->badcount(($self->badcount||0) + @bad);
 416 #                       LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 417                 #               } else {
 418                 my @cmd = split /\s*\\n\s*/, $cmdline;
 419                 foreach my $l (@cmd) {
 420                         $self->send_ans(run_cmd($self, $l));
 421                 }
 422 #               }
 423         }
 424
 425         # check for excessive swearing
 426         if ($maxbadcount && $self->{badcount} && $self->{badcount} >= $maxbadcount) {
 427                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 428                 $self->disconnect;
 429                 return;
 430         }
 431
 432         # send a prompt only if we are in a prompt state
 433         $self->prompt() if $self->{state} =~ /^prompt/o;
 434 }
 435
 436 # send out the talk messages taking into account vias and connectivity
 437 sub send_talks
 438 {
 439         my ($self, $ent, $line) = @_;
 440
 441         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 442         $to = $ent unless $to;
 443         my $call = $via && $via ne '*' ? $via : $to;
 444         my $clref = Route::get($call);
 445         my $dxchan = $clref->dxchan if $clref;
 446         if ($dxchan) {
 447                 $dxchan->talk($self->{call}, $to, undef, $line);
 448         } else {
 449                 $self->send($self->msg('disc2', $via ? $via : $to));
 450                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 451                 if (@l) {
 452                         $self->{talklist} = \@l;
 453                 } else {
 454                         delete $self->{talklist};
 455                         $self->state('prompt');
 456                 }
 457         }
 458 }
 459
 460 sub send_chats
 461 {
 462         my $self = shift;
 463         my $target = shift;
 464         my $text = shift;
 465
 466         my $msgid = DXProt::nextchatmsgid();
 467         $text = "#$msgid $text";
 468         my $ipaddr = alias_localhost($self->hostname || '127.0.0.1');
 469         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text, undef, $ipaddr));
 470 }
 471
 472 sub special_prompt
 473 {
 474         my $self = shift;
 475         my $prompt = shift;
 476         my @call;
 477         for (@{$self->{talklist}}) {
 478                 my ($to, $via) = /(\S+)>(\S+)/;
 479                 $to = $_ unless $to;
 480                 push @call, $to;
 481         }
 482         return $self->msg($prompt, join(',', @call));
 483 }
 484
 485 sub talk_prompt
 486 {
 487         my $self = shift;
 488         return $self->special_prompt('talkprompt');
 489 }
 490
 491 sub chat_prompt
 492 {
 493         my $self = shift;
 494         return $self->special_prompt('chatprompt');
 495 }
 496
 497 #
 498 # send a load of stuff to a command user with page prompting
 499 # and stuff
 500 #
 501
 502 sub send_ans
 503 {
 504         my $self = shift;
 505
 506         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 507                 my $i;
 508                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 509                         my $line = shift @_;
 510                         $line =~ s/\s+$//o;     # why am having to do this?
 511                         $self->send($line);
 512                 }
 513                 $self->{pagedata} =  [ @_ ];
 514                 $self->state('page');
 515                 $self->send($self->msg('page', scalar @_));
 516         } else {
 517                 for (@_) {
 518                         if (defined $_) {
 519                                 $self->send($_);
 520                         } else {
 521                                 $self->send('');
 522                         }
 523                 }
 524         }
 525 }
 526
 527 #
 528 # this is the thing that preps for running the command, it is done like this for the
 529 # benefit of remote command execution
 530 #
 531
 532 sub run_cmd
 533 {
 534         my $self = shift;
 535         my $user = $self->{user};
 536         my $call = $self->{call};
 537         my $cmdline = shift;
 538         my @ans;
 539
 540         return () if length $cmdline == 0;
 541
 542         # split the command line up into parts, the first part is the command
 543         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 544         $args = "" unless defined $args;
 545
 546         if ($cmd) {
 547
 548                 # strip out // on command only
 549                 $cmd =~ s|//+|/|g;
 550
 551                 # check for length of whole command line and any invalid characters
 552                 if (length $cmdline > $maxcmdlth || $cmd =~ m|\.| || $cmd !~ m|^\w+(?:/\w+){0,1}(?:/\d+)?$|) {
 553                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 554                         return $self->_error_out('e40');
 555                 }
 556
 557                 my ($path, $fcmd);
 558
 559                 dbg("cmd: $cmd") if isdbg('command');
 560
 561                 # alias it if possible
 562                 my $acmd = CmdAlias::get_cmd($cmd);
 563                 if ($acmd) {
 564                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 565                         $args = "" unless defined $args;
 566                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 567                 }
 568
 569                 # first expand out the entry to a command
 570                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 571                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 572
 573                 if ($path && $cmd) {
 574                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 575
 576                         my $package = find_cmd_name($path, $fcmd);
 577                         return ($@) if $@;
 578
 579                         if ($package && $self->can("${package}::handle")) {
 580                                 no strict 'refs';
 581                                 dbg("cmd: package $package") if isdbg('command');
 582 #                               Log('cmd', "$self->{call} on $self->{hostname} : '$cmd $args'");
 583                                 my $t0 = [gettimeofday];
 584                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 585                                 if ($@) {
 586                                         DXDebug::dbgprintring(25);
 587                                         return (DXDebug::shortmess($@));
 588                                 }
 589                                 if (isdbg('progress')) {
 590                                         my $msecs = _diffms($t0);
 591                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 592                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 593                                 }
 594                         } else {
 595                                 dbg("cmd: $package not present") if isdbg('command');
 596                                 return $self->_error_out('e1');
 597                         }
 598                 } else {
 599                         LogDbg('DXCommand', "$self->{call} cmd: '$cmd' not found");
 600                         return $self->_error_out('e1');
 601                 }
 602         }
 603
 604         my $ok = shift @ans;
 605         if ($ok) {
 606                 delete $self->{errors};
 607         } else {
 608                 if ($self != $main::me && ++$self->{errors} > $DXChannel::maxerrors) {
 609                         $self->send($self->msg('e26'));
 610                         $self->disconnect;
 611                         return ();
 612                 }
 613         }
 614         return map {s/([^\s])\s+$/$1/; $_} @ans;
 615 }
 616
 617 #
 618 # This is called from inside the main cluster processing loop and is used
 619 # for despatching commands that are doing some long processing job
 620 #
 621 sub process
 622 {
 623         my $t = time;
 624         my @dxchan = DXChannel::get_all();
 625         my $dxchan;
 626
 627         $users = 0;
 628         foreach $dxchan (@dxchan) {
 629                 next unless $dxchan->is_user;
 630
 631                 # send a outstanding message prompt if required
 632                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 633                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 634                         $dxchan->lastmsgpoll($t);
 635                 }
 636
 637                 # send a prompt if no activity out on this channel
 638                 if ($t >= $dxchan->t + $dxchan->{user_interval}) {
 639                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 640                         $dxchan->t($t);
 641                 }
 642                 ++$users;
 643                 $maxusers = $users if $users > $maxusers;
 644
 645                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 646                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 647                                 if ($ref->[0] == 61) {
 648                                         Spot::add(@{$ref->[2]});
 649                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 650                                 }
 651                         }
 652
 653                         $dxchan->{isslugged} = 0;
 654                         $dxchan->{sluggedpcs} = [];
 655                 }
 656         }
 657
 658         import_cmd();
 659 }
 660
 661 #
 662 # finish up a user context
 663 #
 664 sub disconnect
 665 {
 666         my $self = shift;
 667         my $call = $self->call;
 668
 669         return if $self->{disconnecting}++;
 670
 671         delete $self->{senddbg};
 672         RBN::del_seeme($call);
 673
 674         my $uref = Route::User::get($call);
 675         my @rout;
 676         if ($uref) {
 677 #               @rout = $main::routeroot->del_user($uref);
 678                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 679
 680                 # dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 681
 682                 # issue a pc17 to everybody interested
 683                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 684                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
 685         } else {
 686                 confess "trying to disconnect a non existant user $call";
 687         }
 688
 689         # I was the last node visited
 690     $self->user->node($main::mycall);
 691
 692         # send info to all logged in thingies
 693         $self->tell_login('logoutu');
 694         $self->tell_buddies('logoutb');
 695
 696         LogDbg('DXCommand', "$call disconnected");
 697
 698         $self->SUPER::disconnect;
 699 }
 700
 701 #
 702 # short cut to output a prompt
 703 #
 704
 705 sub prompt
 706 {
 707         my $self = shift;
 708
 709         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 710
 711         my $call = $self->call;
 712         my $date = cldate($main::systime);
 713         my $time = ztime($main::systime);
 714         my $prompt = $self->{prompt} || $self->msg('pr');
 715
 716         $call = "($call)" unless $self->here;
 717         $prompt =~ s/\%C/$call/g;
 718         $prompt =~ s/\%D/$date/g;
 719         $prompt =~ s/\%T/$time/g;
 720         $prompt =~ s/\%M/$main::mycall/g;
 721
 722         $self->send($prompt);
 723 }
 724
 725 # broadcast a message to all users [except those mentioned after buffer]
 726 sub broadcast
 727 {
 728         my $pkg = shift;                        # ignored
 729         my $s = shift;                          # the line to be rebroadcast
 730
 731     foreach my $dxchan (DXChannel::get_all()) {
 732                 next unless $dxchan->is_user; # only interested in user channels
 733                 next if grep $dxchan == $_, @_;
 734                 $dxchan->send($s);                      # send it
 735         }
 736 }
 737
 738 # gimme all the users
 739 sub get_all
 740 {
 741         goto &DXChannel::get_all_users;
 742 }
 743
 744 # run a script for this user
 745 sub run_script
 746 {
 747         my $self = shift;
 748         my $silent = shift || 0;
 749
 750 }
 751
 752 #
 753 # search for the command in the cache of short->long form commands
 754 #
 755
 756 sub search
 757 {
 758         my ($path, $short_cmd, $suffix) = @_;
 759         my ($apath, $acmd);
 760
 761         # commands are lower case
 762         $short_cmd = lc $short_cmd;
 763         dbg("command: $path $short_cmd\n") if isdbg('command');
 764
 765         # do some checking for funny characters
 766         return () if $short_cmd =~ /\/$/;
 767
 768         # return immediately if we have it
 769         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 770         if ($apath && $acmd) {
 771                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 772                 return ($apath, $acmd);
 773         }
 774
 775         # if not guess
 776         my @parts = split '/', $short_cmd;
 777         my $dirfn;
 778         my $curdir = $path;
 779
 780         while (my $p = shift @parts) {
 781                 opendir(D, $curdir) or confess "can't open $curdir $!";
 782                 my @ls = readdir D;
 783                 closedir D;
 784
 785                 # if this isn't the last part
 786                 if (@parts) {
 787                         my $found;
 788                         foreach my $l (sort @ls) {
 789                                 next if $l =~ /^\./;
 790                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 791                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 792                                         $dirfn .= "$l/";
 793                                         $curdir .= "/$l";
 794                                         $found++;
 795                                         last;
 796                                 }
 797                         }
 798                         # only proceed if we find the directory asked for
 799                         return () unless $found;
 800                 } else {
 801                         foreach my $l (sort @ls) {
 802                                 next if $l =~ /^\./;
 803                                 next unless $l =~ /\.$suffix$/;
 804                                 if ($p eq substr($l, 0, length $p)) {
 805                                         $l =~ s/\.$suffix$//;
 806                                         $dirfn = "" unless $dirfn;
 807                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 808                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 809                                         return ($path, "$dirfn$l");
 810                                 }
 811                         }
 812                 }
 813         }
 814
 815         return ();
 816 }
 817
 818 # clear the command name cache
 819 sub clear_cmd_cache
 820 {
 821         no strict 'refs';
 822
 823         for my $k (keys %Cache) {
 824                 unless ($k =~ /cmd_cache/) {
 825                         dbg("Undefining cmd $k") if isdbg('command');
 826                         undef $DXCommandmode::{"${k}::"};
 827                 }
 828         }
 829         %cmd_cache = ();
 830         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 831 }
 832
 833 #
 834 # the persistant execution of things from the command directories
 835 #
 836 #
 837 # This allows perl programs to call functions dynamically
 838 #
 839 # This has been nicked directly from the perlembed pages
 840 #
 841 #require Devel::Symdump;
 842
 843 sub valid_package_name {
 844         my $string = shift;
 845         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 846
 847         $string =~ s|/|_|g;
 848         return "cmd_$string";
 849 }
 850
 851 #
 852 # this bit of magic finds a command in the offered directory
 853 sub find_cmd_name {
 854         my $path = shift;
 855         my $cmdname = shift;
 856         my $package = valid_package_name($cmdname);
 857         my $filename = "$path/$cmdname.pl";
 858         my $mtime = -M $filename;
 859
 860         # return if we can't find it
 861         $errstr = undef;
 862         unless (defined $mtime) {
 863                 $errstr = DXM::msg('e1');
 864                 return undef;
 865         }
 866
 867         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 868                 #we have compiled this subroutine already,
 869                 #it has not been updated on disk, nothing left to do
 870                 #print STDERR "already compiled $package->handler\n";
 871                 dbg("find_cmd_name: $package cached") if isdbg('command');
 872         } else {
 873
 874                 my $sub = readfilestr($filename);
 875                 unless ($sub) {
 876                         $errstr = "Syserr: can't open '$filename' $!";
 877                         return undef;
 878                 };
 879
 880                 #wrap the code into a subroutine inside our unique package
 881                 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}; );
 882
 883
 884                 if ($sub =~ m|\s*sub\s+handle\n|) {
 885                         $eval .= $sub;
 886                 } else {
 887                         $eval .= qq(sub handle { $sub });
 888                 }
 889
 890                 if (isdbg('eval')) {
 891                         my @list = split /\n/, $eval;
 892                         for (@list) {
 893                                 dbg($_ . "\n") if isdbg('eval');
 894                         }
 895                 }
 896
 897                 # get rid of any existing sub and try to compile the new one
 898                 no strict 'refs';
 899
 900                 if (exists $Cache{$package}) {
 901                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 902                         undef $DXCommandmode::{"${package}::"};
 903                         delete $Cache{$package};
 904                 } else {
 905                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 906                 }
 907
 908                 eval $eval;
 909
 910                 $Cache{$package} = {mtime => $mtime } unless $@;
 911         }
 912
 913         return "DXCommandmode::$package";
 914 }
 915
 916 sub send
 917 {
 918         my $self = shift;
 919         if ($self->{gtk}) {
 920                 for (@_) {
 921                         $self->SUPER::send(dd(['cmd',$_]));
 922                 }
 923         } else {
 924                 $self->SUPER::send(@_);
 925         }
 926 }
 927
 928 sub local_send
 929 {
 930         my ($self, $let, $buf) = @_;
 931         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 932                 if ($self->{enhanced}) {
 933                         $self->send_later($let, $buf);
 934                 } else {
 935                         $self->send($buf);
 936                 }
 937         } else {
 938                 $self->delay($buf);
 939         }
 940 }
 941
 942 # send a talk message here
 943 sub talk
 944 {
 945         my ($self, $from, $to, $via, $line, $onode) = @_;
 946         $line =~ s/\\5E/\^/g;
 947         if ($self->{talk}) {
 948                 if ($self->{gtk}) {
 949                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 950                 } else {
 951                         $self->local_send('T', "$to de $from: $line");
 952                 }
 953         }
 954         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 955         # send a 'not here' message if required
 956         unless ($self->{here} && $from ne $to) {
 957                 my $key = "$to$from";
 958                 unless (exists $nothereslug{$key}) {
 959                         my ($ref, $dxchan);
 960                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 961                                 my $name = $self->user->name || $to;
 962                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 963                                 $nothereslug{$key} = $main::systime;
 964                                 $dxchan->talk($to, $from, undef, $s);
 965                         }
 966                 }
 967         }
 968 }
 969
 970 # send an announce
 971 sub announce
 972 {
 973         my $self = shift;
 974         my $line = shift;
 975         my $isolate = shift;
 976         my $to = shift;
 977         my $target = shift;
 978         my $text = shift;
 979         my ($filter, $hops);
 980
 981         if (!$self->{ann_talk} && $to ne $self->{call}) {
 982                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 983                 return if $call;
 984         }
 985
 986         if ($self->{annfilter}) {
 987                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 988                 return unless $filter;
 989         }
 990
 991         unless ($self->{ann}) {
 992                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 993         }
 994         return if $target eq 'SYSOP' && $self->{priv} < 5;
 995         my $buf;
 996         if ($self->{gtk}) {
 997                 $buf = dd(['ann', $to, $target, $text, @_])
 998         } else {
 999                 $buf = "$to$target de $_[0]: $text";
1000                 #$buf =~ s/\%5E/^/g;
1001                 $buf .= "\a\a" if $self->{beep};
1002         }
1003         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
1004 }
1005
1006 # send a chat
1007 sub chat
1008 {
1009         my $self = shift;
1010         my $line = shift;
1011         my $isolate = shift;
1012         my $target = shift;
1013         my $to = shift;
1014         my $text = shift;
1015         my ($filter, $hops);
1016
1017         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
1018
1019         $text =~ s/^\#\d+ //;
1020         my $buf;
1021         if ($self->{gtk}) {
1022                 $buf = dd(['chat', $to, $target, $text, @_])
1023         } else {
1024                 $buf = "$target de $_[0]: $text";
1025                 #$buf =~ s/\%5E/^/g;
1026                 $buf .= "\a\a" if $self->{beep};
1027         }
1028         $self->local_send('C', $buf);
1029 }
1030
1031 sub format_dx_spot
1032 {
1033         my $self = shift;
1034
1035         my $t = ztime($_[2]);
1036         my ($slot1, $slot2) = ('', '');
1037
1038         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1039         my $c = $_[3];
1040         $c =~ s/\t/ /g;
1041         my $comment = substr (($c || ''), 0, $clth);
1042         $comment .= ' ' x ($clth - (length($comment)));
1043
1044         if ($self->{user}) {            # to allow the standalone program 'showdx' to work
1045                 if (!$slot1 && $self->{user}->wantgrid) {
1046                         my $ref = DXUser::get_current($_[1]);
1047                         if ($ref && $ref->qra) {
1048                                 $slot1 = ' ' . substr($ref->qra, 0, 4);
1049                         }
1050                 }
1051                 if (!$slot1 && $self->{user}->wantusstate) {
1052                         $slot1 = " $_[12]" if $_[12];
1053                 }
1054                 unless ($slot1) {
1055                         if ($self->{user}->wantdxitu) {
1056                                 $slot1 = sprintf(" %2d", $_[8]) if defined $_[8];
1057                         }
1058                         elsif ($self->{user}->wantdxcq) {
1059                                 $slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
1060                         }
1061                 }
1062                 $comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
1063
1064                 if (!$slot2 && $self->{user}->wantgrid) {
1065                         my $origin = $_[4];
1066                         $origin =~ s/-#$//;     # sigh......
1067                         my $ref = DXUser::get_current($origin);
1068                         if ($ref && $ref->qra) {
1069                                 $slot2 = ' ' . substr($ref->qra, 0, 4);
1070                         }
1071                 }
1072                 if (!$slot2 && $self->{user}->wantusstate) {
1073                         $slot2 = " $_[13]" if $_[13];
1074                 }
1075                 unless ($slot2) {
1076                         if ($self->{user}->wantdxitu) {
1077                                 $slot2 = sprintf(" %2d", $_[10]) if defined $_[10];
1078                         }
1079                         elsif ($self->{user}->wantdxcq) {
1080                                 $slot2 = sprintf(" %2d", $_[11]) if defined $_[11];
1081                         }
1082                 }
1083         }
1084
1085         my $o = sprintf("%-9s", $_[4] . ':');
1086         my $qrg = sprintf "%8.1f", $_[0];
1087         if (length $qrg >= 9) {
1088                 while (length($o)+length($qrg) > 17 && $o =~ / $/) {
1089                         chop $o;
1090                 }
1091         }
1092         my $spot = sprintf "%-12s", $_[1];
1093         my $front = "DX de $o $qrg  $spot";
1094         while (length($front) > 38 && $front =~ /  $/) {
1095                 chop $front;
1096         }
1097
1098
1099         return sprintf "$front %-s $t$slot2", $comment;
1100 }
1101
1102
1103 # send a dx spot
1104 sub dx_spot
1105 {
1106         my $self = shift;
1107         my $line = shift;
1108         my $isolate = shift;
1109         return unless $self->{dx};
1110
1111         my ($filter, $hops);
1112
1113         if ($self->{spotsfilter}) {
1114                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1115                 return unless $filter;
1116         }
1117
1118         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1119
1120         my $buf;
1121         if ($self->{ve7cc}) {
1122                 $buf = VE7CC::dx_spot($self, @_);
1123         } elsif ($self->{gtk}) {
1124                 my ($dxloc, $byloc);
1125
1126                 my $ref = DXUser::get_current($_[4]);
1127                 if ($ref) {
1128                         $byloc = $ref->qra;
1129                         $byloc = substr($byloc, 0, 4) if $byloc;
1130                 }
1131
1132                 my $spot = $_[1];
1133                 $spot =~ s|/\w{1,4}$||;
1134                 $ref = DXUser::get_current($spot);
1135                 if ($ref) {
1136                         $dxloc = $ref->qra;
1137                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1138                 }
1139                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1140
1141         } else {
1142                 $buf = $self->format_dx_spot(@_);
1143                 $buf .= "\a\a" if $self->{beep};
1144                 #$buf =~ s/\%5E/^/g;
1145         }
1146
1147         $self->local_send('X', $buf);
1148 }
1149
1150 sub wwv
1151 {
1152         my $self = shift;
1153         my $line = shift;
1154         my $isolate = shift;
1155         my ($filter, $hops);
1156
1157         return unless $self->{wwv};
1158
1159         if ($self->{wwvfilter}) {
1160                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1161                 return unless $filter;
1162         }
1163
1164         my $buf;
1165         if ($self->{gtk}) {
1166                 $buf = dd(['wwv', @_])
1167         } else {
1168                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1169                 $buf .= "\a\a" if $self->{beep};
1170         }
1171
1172         $self->local_send('V', $buf);
1173 }
1174
1175 sub wcy
1176 {
1177         my $self = shift;
1178         my $line = shift;
1179         my $isolate = shift;
1180         my ($filter, $hops);
1181
1182         return unless $self->{wcy};
1183
1184         if ($self->{wcyfilter}) {
1185                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1186                 return unless $filter;
1187         }
1188
1189         my $buf;
1190         if ($self->{gtk}) {
1191                 $buf = dd(['wcy', @_])
1192         } else {
1193                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1194                 $buf .= "\a\a" if $self->{beep};
1195         }
1196         $self->local_send('Y', $buf);
1197 }
1198
1199 # broadcast debug stuff to all interested parties
1200 sub broadcast_debug
1201 {
1202         my $s = shift;                          # the line to be rebroadcast
1203
1204         foreach my $dxchan (DXChannel::get_all_users) {
1205                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1206                 if ($dxchan->{gtk}) {
1207                         $dxchan->send_later('L', dd(['db', $s]));
1208                 } else {
1209                         $dxchan->send_later('L', $s);
1210                 }
1211         }
1212 }
1213
1214 sub do_entry_stuff
1215 {
1216         my $self = shift;
1217         my $line = shift;
1218         my @out;
1219
1220         if ($self->state eq 'enterbody') {
1221                 my $loc = $self->{loc} || confess "local var gone missing" ;
1222                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1223                         no strict 'refs';
1224                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1225                         $self->func(undef);
1226                         $self->state('prompt');
1227                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1228                         push @out, $self->msg('m10');
1229                         delete $loc->{lines};
1230                         delete $self->{loc};
1231                         $self->func(undef);
1232                         $self->state('prompt');
1233                 } else {
1234                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1235                         # i.e. it ain't and end or abort, therefore store the line
1236                 }
1237         } else {
1238                 confess "Invalid state $self->{state}";
1239         }
1240         return @out;
1241 }
1242
1243 sub store_startup_script
1244 {
1245         my $self = shift;
1246         my $loc = $self->{loc} || confess "local var gone missing" ;
1247         my @out;
1248         my $call = $loc->{call} || confess "callsign gone missing";
1249         confess "lines array gone missing" unless ref $loc->{lines};
1250         my $r = Script::store($call, $loc->{lines});
1251         if (defined $r) {
1252                 if ($r) {
1253                         push @out, $self->msg('m19', $call, $r);
1254                 } else {
1255                         push @out, $self->msg('m20', $call);
1256                 }
1257         } else {
1258                 push @out, "error opening startup script $call $!";
1259         }
1260         return @out;
1261 }
1262
1263 # Import any commands contained in any files in import_cmd directory
1264 #
1265 # If the filename has a recogisable callsign as some delimited part
1266 # of it, then this is the user the command will be run as.
1267 #
1268 sub import_cmd
1269 {
1270         # are there any to do in this directory?
1271         return unless -d $cmdimportdir;
1272         unless (opendir(DIR, $cmdimportdir)) {
1273                 LogDbg('err', "can\'t open $cmdimportdir $!");
1274                 return;
1275         }
1276
1277         my @names = readdir(DIR);
1278         closedir(DIR);
1279         my $name;
1280
1281         return unless @names;
1282
1283         foreach $name (@names) {
1284                 next if $name =~ /^\./;
1285
1286                 my $s = Script->new($name, $cmdimportdir);
1287                 if ($s) {
1288                         LogDbg('DXCommand', "Run import cmd file $name");
1289                         my @cat = split /[^A-Za-z0-9]+/, $name;
1290                         my ($call) = grep {is_callsign(uc $_)} @cat;
1291                         $call ||= $main::mycall;
1292                         $call = uc $call;
1293                         my @out;
1294
1295
1296                         $s->inscript(0);        # switch off script checks
1297
1298                         if ($call eq $main::mycall) {
1299                                 @out = $s->run($main::me, 1);
1300                         } else {
1301                                 my $dxchan = DXChannel::get($call);
1302                             if ($dxchan) {
1303                                         @out = $s->run($dxchan, 1);
1304                                 } else {
1305                                         my $u = DXUser::get($call);
1306                                         if ($u) {
1307                                                 $dxchan = $main::me;
1308                                                 my $old = $dxchan->{call};
1309                                                 my $priv = $dxchan->{priv};
1310                                                 my $user = $dxchan->{user};
1311                                                 $dxchan->{call} = $call;
1312                                                 $dxchan->{priv} = $u->priv;
1313                                                 $dxchan->{user} = $u;
1314                                                 @out = $s->run($dxchan, 1);
1315                                                 $dxchan->{call} = $old;
1316                                                 $dxchan->{priv} = $priv;
1317                                                 $dxchan->{user} = $user;
1318                                         } else {
1319                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1320                                         }
1321                                 }
1322                         }
1323                         $s->erase;
1324                         for (@out) {
1325                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1326                         }
1327                 } else {
1328                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1329                         unlink "$cmdimportdir/$name";
1330                 }
1331         }
1332 }
1333
1334 sub print_find_reply
1335 {
1336         my ($self, $node, $target, $flag, $ms) = @_;
1337         my $sort = $flag == 2 ? "External" : "Local";
1338         $self->send("$sort $target found at $node in $ms ms" );
1339 }
1340
1341 # send the most relevant motd
1342 sub send_motd
1343 {
1344         my $self = shift;
1345         my $motd;
1346
1347         unless ($self->isregistered) {
1348                 $motd = "${main::motd}_nor_$self->{lang}";
1349                 $motd = "${main::motd}_nor" unless -e $motd;
1350         }
1351         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1352         $motd = $main::motd unless $motd && -e $motd;
1353         if ($self->conn->ax25) {
1354                 if ($motd) {
1355                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1356                 } else {
1357                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1358                 }
1359         }
1360         $self->send_file($motd) if -e $motd;
1361 }
1362
1363 # Punt off a long running command into a separate process
1364 #
1365 # This is called from commands to run some potentially long running
1366 # function. The process forks and then runs the function and returns
1367 # the result back to the cmd.
1368 #
1369 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1370 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1371 #       THE CURRENT CONTEXT!!
1372 #
1373 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1374 sub spawn_cmd
1375 {
1376         my $self = shift;
1377         my $line = shift;
1378         my $cmdref = shift;
1379         my $call = $self->{call};
1380         my %args = @_;
1381         my @out;
1382
1383         my $cb = delete $args{cb};
1384         my $prefix = delete $args{prefix};
1385         my $progress = delete $args{progress};
1386         my $args = delete $args{args} || [];
1387         my $t0 = [gettimeofday];
1388
1389         no strict 'refs';
1390
1391         # just behave normally if something has set the "one-shot" _nospawn in the channel
1392         if ($self->{_nospawn} || $main::is_win == 1) {
1393                 eval { @out = $cmdref->(@$args); };
1394                 if ($@) {
1395                         DXDebug::dbgprintring(25);
1396                         push @out, DXDebug::shortmess($@);
1397                 }
1398                 return @out;
1399         }
1400
1401         my $fc = DXSubprocess->new;
1402 #       $fc->serializer(\&encode_json);
1403 #       $fc->deserializer(\&decode_json);
1404         $fc->run(
1405                          sub {
1406                                  my $subpro = shift;
1407                                  if (isdbg('progress')) {
1408                                          my $s = qq{$call line: "$line"};
1409                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1410                                          dbg($s);
1411                                  }
1412                                  eval {
1413                                          ++$self->{_in_sub_process};
1414                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1415                                          @out = $cmdref->(@$args);
1416                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1417                                  };
1418                                  if ($@) {
1419                                          DXDebug::dbgprintring(25);
1420                                          push @out, DXDebug::shortmess($@);
1421                                  }
1422                                  return @out;
1423                          },
1424 #                        $args,
1425                          sub {
1426                                  my ($fc, $err, @res) = @_;
1427                                  my $dxchan = DXChannel::get($call);
1428                                  return unless $dxchan;
1429
1430                                  if ($err) {
1431                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1432                                          dbg($s) if isdbg('chan');
1433                                          $dxchan->send($s);
1434                                          return;
1435                                  }
1436                                  if ($cb) {
1437                                          # transform output if required
1438                                          @res = $cb->($dxchan, @res);
1439                                  }
1440                                  if (@res) {
1441                                          if (defined $prefix) {
1442                                                  $dxchan->send(map {"$prefix$_"} @res);
1443                                          } else {
1444                                                  $dxchan->send(@res);
1445                                          }
1446                                  }
1447                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1448                          });
1449
1450         return @out;
1451 }
1452
1453 sub user_count
1454 {
1455     return ($users, $maxusers);
1456 }
1457
1458 # alias localhost if required. This is designed to repress all localhost and other
1459 # internal interfaces to a fixed (outside) IPv4 or IPV6 address
1460 sub alias_localhost
1461 {
1462         my $hostname = shift;
1463         if ($hostname =~ /./) {
1464                 return $hostname unless $main::localhost_alias_ipv4;
1465                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv4 : $hostname;
1466         } elsif ($hostname =~ /:/) {
1467                 return $hostname unless $main::localhost_alias_ipv6;
1468                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv6 : $hostname;
1469         }
1470         return $hostname;
1471 }
1472
1473 1;
1474 __END__