perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32
  33 use strict;
  34 use vars qw($me $pc11_max_age $pc23_max_age
  35                         $last_hour %pings %rcmds
  36                         %nodehops @baddx $baddxfn
  37                         $allowzero $decode_dk0wcy);
  38
  39 $me = undef;                                    # the channel id for this cluster
  40 $decode_dk0wcy = undef;                 # if set use this callsign to decode announces from the EU WWV data beacon
  41 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  42 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  43
  44 $last_hour = time;                              # last time I did an hourly periodic update
  45 %pings = ();                    # outstanding ping requests outbound
  46 %rcmds = ();                    # outstanding rcmd requests outbound
  47 %nodehops = ();                 # node specific hop control
  48 @baddx = ();                    # list of illegal spotted callsigns
  49
  50
  51 $baddxfn = "$main::data/baddx.pl";
  52
  53 sub init
  54 {
  55         my $user = DXUser->get($main::mycall);
  56         $DXProt::myprot_version += $main::version*100;
  57         $me = DXProt->new($main::mycall, 0, $user);
  58         $me->{here} = 1;
  59         $me->{state} = "indifferent";
  60         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
  61         confess $@ if $@;
  62         #  $me->{sort} = 'M';    # M for me
  63
  64         # now prime the spot and wwv  duplicates file with data
  65     my @today = Julian::unixtoj(time);
  66         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
  67                 Spot::dup(@{$_}[0..3]);
  68         }
  69         for (Geomag::readfile(time)) {
  70                 Geomag::dup(@{$_}[1..5]);
  71         }
  72
  73         # load the baddx file
  74         do "$baddxfn" if -e "$baddxfn";
  75         print "$@\n" if $@;
  76 }
  77
  78 #
  79 # obtain a new connection this is derived from dxchannel
  80 #
  81
  82 sub new
  83 {
  84         my $self = DXChannel::alloc(@_);
  85         return $self;
  86 }
  87
  88 # this is how a pc connection starts (for an incoming connection)
  89 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
  90 # all the crap that comes between).
  91 sub start
  92 {
  93         my ($self, $line, $sort) = @_;
  94         my $call = $self->{call};
  95         my $user = $self->{user};
  96
  97         # remember type of connection
  98         $self->{consort} = $line;
  99         $self->{outbound} = $sort eq 'O';
 100         $self->{priv} = $user->priv;
 101         $self->{lang} = $user->lang;
 102         $self->{isolate} = $user->{isolate};
 103         $self->{consort} = $line;       # save the connection type
 104         $self->{here} = 1;
 105
 106         # get the INPUT filters (these only pertain to Clusters)
 107         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 108         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 109         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 110         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 111
 112         # set unbuffered and no echo
 113         $self->send_now('B',"0");
 114         $self->send_now('E',"0");
 115
 116         # ping neighbour node stuff
 117         my $ping = $user->pingint;
 118         $ping = 5*60 unless defined $ping;
 119         $self->{pingint} = $ping;
 120         $self->{nopings} = $user->nopings || 2;
 121         $self->{pingtime} = [ ];
 122         $self->{pingave} = 0;
 123
 124         # send initialisation string
 125         unless ($self->{outbound}) {
 126                 $self->send(pc38()) if DXNode->get_all();
 127                 $self->send(pc18());
 128                 $self->{lastping} = $main::systime;
 129         } else {
 130                 # remove from outstanding connects queue
 131                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 132                 $self->{lastping} = $main::systime + $self->pingint / 2;
 133         }
 134         $self->state('init');
 135         $self->pc50_t(time);
 136
 137         # send info to all logged in thingies
 138         $self->tell_login('loginn');
 139
 140         Log('DXProt', "$call connected");
 141 }
 142
 143 #
 144 # This is the normal pcxx despatcher
 145 #
 146 sub normal
 147 {
 148         my ($self, $line) = @_;
 149         my @field = split /\^/, $line;
 150         pop @field if $field[-1] eq '~';
 151
 152 #       print join(',', @field), "\n";
 153
 154         # ignore any lines that don't start with PC
 155         return if !$field[0] =~ /^PC/;
 156
 157         # process PC frames
 158         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 159         return unless $pcno;
 160         return if $pcno < 10 || $pcno > 99;
 161
 162         # dump bad protocol messages unless it is a PC29
 163         if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
 164                 dbg('chan', "CORRUPT protocol message - dumped");
 165                 return;
 166         }
 167
 168         # local processing 1
 169         my $pcr;
 170         eval {
 171                 $pcr = Local::pcprot($self, $pcno, @field);
 172         };
 173 #       dbg('local', "Local::pcprot error $@") if $@;
 174         return if $pcr;
 175
 176  SWITCH: {
 177                 if ($pcno == 10) {              # incoming talk
 178
 179                         # is it for me or one of mine?
 180                         my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
 181                         if ($call eq $main::mycall || grep $_ eq $call, DXChannel::get_all_user_calls()) {
 182
 183                                 # yes, it is
 184                                 my $text = unpad($field[3]);
 185                                 Log('talk', $call, $field[1], $field[6], $text);
 186                                 $call = $main::myalias if $call eq $main::mycall;
 187                                 my $ref = DXChannel->get($call);
 188                                 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
 189                         } else {
 190                                 $self->route($field[2], $line); # relay it on its way
 191                         }
 192                         return;
 193                 }
 194
 195                 if ($pcno == 11 || $pcno == 26) { # dx spot
 196
 197                         # route 'foreign' pc26s
 198                         if ($pcno == 26) {
 199                                 if ($field[7] ne $main::mycall) {
 200                                         $self->route($field[7], $line);
 201                                         return;
 202                                 }
 203                         }
 204
 205                         # if this is a 'nodx' node then ignore it
 206                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 207                                 dbg('chan', "Bad DXNode, dropped");
 208                                 return;
 209                         }
 210
 211                         # convert the date to a unix date
 212                         my $d = cltounix($field[3], $field[4]);
 213                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 214                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 215                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 216                                 return;
 217                         }
 218
 219                         # is it 'baddx'
 220                         if (grep $field[2] eq $_, @baddx) {
 221                                 dbg('chan', "Bad DX spot, ignored");
 222                                 return;
 223                         }
 224
 225                         # are any of the crucial fields invalid?
 226             if ($field[2] =~ /[a-z]/ || $field[6] =~ /[a-z]/ || $field[7] =~ /[a-z]/) {
 227                                 dbg('chan', "Spot contains lower case callsigns, rejected");
 228                                 return;
 229                         }
 230
 231                         # do some de-duping
 232                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 233                                 dbg('chan', "Duplicate Spot ignored\n");
 234                                 return;
 235                         }
 236
 237                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 238
 239             #
 240                         # @spot at this point contains:-
 241             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 242                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 243                         # you should be able to route on any of these
 244             #
 245
 246                         # local processing
 247                         my $r;
 248                         eval {
 249                                 $r = Local::spot($self, @spot);
 250                         };
 251 #                       dbg('local', "Local::spot1 error $@") if $@;
 252                         return if $r;
 253
 254                         # DON'T be silly and send on PC26s!
 255                         return if $pcno == 26;
 256
 257                         # send out the filtered spots
 258                         send_dx_spot($self, $line, @spot) if @spot;
 259                         return;
 260                 }
 261
 262                 if ($pcno == 12) {              # announces
 263                         # announce duplicate checking
 264                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 265                                 dbg('chan', "Duplicate Announce ignored\n");
 266                                 return;
 267                         }
 268
 269                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 270
 271                                 # global ann filtering on INPUT
 272                                 if ($self->{inannfilter}) {
 273                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 274                                         unless ($filter) {
 275                                                 dbg('chan', "Rejected by filter");
 276                                                 return;
 277                                         }
 278                                 }
 279
 280                                 # send it
 281                                 $self->send_announce($line, @field[1..6]);
 282
 283                                 if ($decode_dk0wcy && $field[1] eq $decode_dk0wcy) {
 284                                         my ($hour, $k, $next, $a, $r, $sfi, $alarm) = $field[3] =~ /^Aurora Beacon\s+(\d+)UTC,\s+Kiel\s+K=(\d+),.*ed\s+K=(\d+),\s+A=(\d+),\s+R=(\d+),\s+SFI=(\d+),.*larm:\s+(\w+)/;
 285                                         $alarm = ($alarm =~ /^Y/i) ? ', Aurora in DE' : '';
 286                                         my $wwv = Geomag::update($main::systime, $hour, $sfi, $a, $k, "R=$r, Next K=$next$alarm", $decode_dk0wcy, $field[5], $r) if $sfi && $r;
 287                                 }
 288
 289                         } else {
 290                                 $self->route($field[2], $line);
 291                         }
 292
 293                         return;
 294                 }
 295
 296                 if ($pcno == 13) {
 297                         last SWITCH;
 298                 }
 299                 if ($pcno == 14) {
 300                         last SWITCH;
 301                 }
 302                 if ($pcno == 15) {
 303                         last SWITCH;
 304                 }
 305
 306                 if ($pcno == 16) {              # add a user
 307                         my $node = DXCluster->get_exact($field[1]);
 308                         my $dxchan;
 309                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 310                                 # add it to the node table if it isn't present and it's
 311                                 # connected locally
 312                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 313                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 314
 315                         }
 316                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 317                         return unless $node->isa('DXNode');
 318                         if ($node->dxchan != $self) {
 319                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 320                                 return;
 321                         }
 322                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 323                                 dbg('chan', "LOOP: $field[1] connected locally");
 324                                 return;
 325                         }
 326                         my $i;
 327
 328                         for ($i = 2; $i < $#field; $i++) {
 329                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 330                                 next if !$call || length $call < 3 || length $call > 8;
 331                                 next if !$confmode;
 332                                 $call = uc $call;
 333                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 334
 335                                 $confmode = $confmode eq '*';
 336                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 337
 338                                 # add this station to the user database, if required
 339                                 $call =~ s/-\d+$//o;        # remove ssid for users
 340                                 my $user = DXUser->get_current($call);
 341                                 $user = DXUser->new($call) if !$user;
 342                                 $user->homenode($node->call) if !$user->homenode;
 343                                 $user->node($node->call);
 344                                 $user->lastin($main::systime) unless DXChannel->get($call);
 345                                 $user->put;
 346                         }
 347
 348                         # queue up any messages (look for privates only)
 349                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 350                         last SWITCH;
 351                 }
 352
 353                 if ($pcno == 17) {              # remove a user
 354                         my $node = DXCluster->get_exact($field[2]);
 355                         my $dxchan;
 356                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 357                                 # add it to the node table if it isn't present and it's
 358                                 # connected locally
 359                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 360                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 361                                 return;
 362                         }
 363                         return unless $node;
 364                         return unless $node->isa('DXNode');
 365                         if ($node->dxchan != $self) {
 366                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 367                                 return;
 368                         }
 369                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 370                                 dbg('chan', "LOOP: $field[2] connected locally");
 371                                 return;
 372                         }
 373                         my $ref = DXCluster->get_exact($field[1]);
 374                         $ref->del() if $ref;
 375                         last SWITCH;
 376                 }
 377
 378                 if ($pcno == 18) {              # link request
 379                         $self->state('init');
 380
 381                         # first clear out any nodes on this dxchannel
 382                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 383                         foreach my $node (@gonenodes) {
 384                                 next if $node->dxchan == $DXProt::me;
 385                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 386                                 $node->del();
 387                         }
 388                         $self->send_local_config();
 389                         $self->send(pc20());
 390                         return;             # we don't pass these on
 391                 }
 392
 393                 if ($pcno == 19) {              # incoming cluster list
 394                         my $i;
 395                         my $newline = "PC19^";
 396                         for ($i = 1; $i < $#field-1; $i += 4) {
 397                                 my $here = $field[$i];
 398                                 my $call = uc $field[$i+1];
 399                                 my $confmode = $field[$i+2];
 400                                 my $ver = $field[$i+3];
 401
 402                                 $ver = 5400 if !$ver && $allowzero;
 403
 404                                 # now check the call over
 405                                 my $node = DXCluster->get_exact($call);
 406                                 if ($node) {
 407                                         my $dxchan;
 408                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 409                                                 dbg('chan', "LOOP: $call connected locally");
 410                                         }
 411                                     if ($node->dxchan != $self) {
 412                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 413                                                 next;
 414                                         }
 415                                         dbg('chan', "already have $call");
 416                                         next;
 417                                 }
 418
 419                                 # check for sane parameters
 420                                 next if $ver < 5000; # only works with version 5 software
 421                                 next if length $call < 3; # min 3 letter callsigns
 422
 423                                 # add it to the nodes table and outgoing line
 424                                 $newline .= "$here^$call^$confmode^$ver^";
 425                                 DXNode->new($self, $call, $confmode, $here, $ver);
 426
 427                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 428                                 my $mref = DXMsg::get_busy($call);
 429                                 $mref->stop_msg($call) if $mref;
 430
 431                                 # add this station to the user database, if required (don't remove SSID from nodes)
 432                                 my $user = DXUser->get_current($call);
 433                                 if (!$user) {
 434                                         $user = DXUser->new($call);
 435                                         $user->sort('A');
 436                                         $user->priv(1);                   # I have relented and defaulted nodes
 437                                         $self->{priv} = 1;                # to user RCMDs allowed
 438                                         $user->homenode($call);
 439                                         $user->node($call);
 440                                 }
 441                                 $user->lastin($main::systime) unless DXChannel->get($call);
 442                                 $user->put;
 443                         }
 444
 445                         return if $newline eq "PC19^";
 446
 447                         # add hop count
 448                         $newline .=  get_hops(19) . "^";
 449                         $line = $newline;
 450                         last SWITCH;
 451                 }
 452
 453                 if ($pcno == 20) {              # send local configuration
 454                         $self->send_local_config();
 455                         $self->send(pc22());
 456                         $self->state('normal');
 457                         return;
 458                 }
 459
 460                 if ($pcno == 21) {              # delete a cluster from the list
 461                         my $call = uc $field[1];
 462                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 463                                 my $node = DXCluster->get_exact($call);
 464                                 if ($node) {
 465                                         if ($node->dxchan != $self) {
 466                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 467                                                 return;
 468                                         }
 469                                         my $dxchan;
 470                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 471                                                 dbg('chan', "LOOP: $call connected locally");
 472                                                 return;
 473                                         }
 474                                         $node->del();
 475                                 } else {
 476                                         dbg('chan', "$call not in table, dropped");
 477                                         return;
 478                                 }
 479                         }
 480                         last SWITCH;
 481                 }
 482
 483                 if ($pcno == 22) {
 484                         $self->state('normal');
 485                         return;
 486                 }
 487
 488                 if ($pcno == 23 || $pcno == 27) { # WWV info
 489
 490                         # route 'foreign' pc27s
 491                         if ($pcno == 27) {
 492                                 if ($field[8] ne $main::mycall) {
 493                                         $self->route($field[8], $line);
 494                                         return;
 495                                 }
 496                         }
 497
 498                         # do some de-duping
 499                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 500                         my $sfi = unpad($field[3]);
 501                         my $k = unpad($field[4]);
 502                         my $i = unpad($field[5]);
 503                         my ($r) = $field[6] =~ /R=(\d+)/;
 504                         $r = 0 unless $r;
 505                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 506                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 507                                 return;
 508                         }
 509                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 510                                 dbg('chan', "Dup WWV Spot ignored\n");
 511                                 return;
 512                         }
 513                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 514
 515                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 516
 517                         my $rep;
 518                         eval {
 519                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 520                         };
 521 #                       dbg('local', "Local::wwv2 error $@") if $@;
 522                         return if $rep;
 523
 524                         # DON'T be silly and send on PC27s!
 525                         return if $pcno == 27;
 526
 527                         # broadcast to the eager world
 528                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 529                         return;
 530                 }
 531
 532                 if ($pcno == 24) {              # set here status
 533                         my $call = uc $field[1];
 534                         my $ref = DXCluster->get_exact($call);
 535                         $ref->here($field[2]) if $ref;
 536                         last SWITCH;
 537                 }
 538
 539                 if ($pcno == 25) {      # merge request
 540                         if ($field[1] ne $main::mycall) {
 541                                 $self->route($field[1], $line);
 542                                 return;
 543                         }
 544                         if ($field[2] eq $main::mycall) {
 545                                 dbg('chan', "Trying to merge to myself, ignored");
 546                                 return;
 547                         }
 548
 549                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 550
 551                         # spots
 552                         if ($field[3] > 0) {
 553                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 554                                 my $in;
 555                                 foreach $in (@in) {
 556                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 557                                 }
 558                         }
 559
 560                         # wwv
 561                         if ($field[4] > 0) {
 562                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 563                                 my $in;
 564                                 foreach $in (@in) {
 565                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 566                                 }
 567                         }
 568                         return;
 569                 }
 570
 571                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 572                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 573                                 DXMsg::process($self, $line);
 574                         } else {
 575                                 $self->route($field[1], $line);
 576                         }
 577                         return;
 578                 }
 579
 580                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 581                         if ($field[1] eq $main::mycall) {
 582                                 my $ref = DXUser->get_current($field[2]);
 583                                 my $cref = DXCluster->get($field[2]);
 584                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 585                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 586                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 587                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 588                                                 my $oldpriv = $self->{priv};
 589                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 590                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 591                                                 $self->{priv} = $oldpriv;
 592                                                 for (@in) {
 593                                                         s/\s*$//og;
 594                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 595                                                         Log('rcmd', 'out', $field[2], $_);
 596                                                 }
 597                                                 delete $self->{remotecmd};
 598                                         } else {
 599                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 600                                         }
 601                                 } else {
 602                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 603                                 }
 604                         } else {
 605                                 my $ref = DXUser->get_current($field[1]);
 606                                 if ($ref && $ref->is_clx) {
 607                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 608                                 } else {
 609                                         $self->route($field[1], $line);
 610                                 }
 611                         }
 612                         return;
 613                 }
 614
 615                 if ($pcno == 35) {              # remote command replies
 616                         if ($field[1] eq $main::mycall) {
 617                                 my $s = $rcmds{$field[2]};
 618                                 if ($s) {
 619                                         my $dxchan = DXChannel->get($s->{call});
 620                                         $dxchan->send($field[3]) if $dxchan;
 621                                         delete $rcmds{$field[2]} if !$dxchan;
 622                                 }
 623                         } else {
 624                                 my $ref = DXUser->get_current($field[1]);
 625                                 if ($ref && $ref->is_clx) {
 626                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 627                                 } else {
 628                                         $self->route($field[1], $line);
 629                                 }
 630                         }
 631                         return;
 632                 }
 633
 634                 # for pc 37 see 44 onwards
 635
 636                 if ($pcno == 38) {              # node connected list from neighbour
 637                         return;
 638                 }
 639
 640                 if ($pcno == 39) {              # incoming disconnect
 641                         $self->disconnect(1);
 642                         return;
 643                 }
 644
 645                 if ($pcno == 41) {              # user info
 646                         # add this station to the user database, if required
 647                         my $user = DXUser->get_current($field[1]);
 648                         if (!$user) {
 649                                 # then try without an SSID
 650                                 $field[1] =~ s/-\d+$//o;
 651                                 $user = DXUser->get_current($field[1]);
 652                         }
 653                         $user = DXUser->new($field[1]) if !$user;
 654
 655                         if ($field[2] == 1) {
 656                                 $user->name($field[3]);
 657                         } elsif ($field[2] == 2) {
 658                                 $user->qth($field[3]);
 659                         } elsif ($field[2] == 3) {
 660                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 661                                 $user->lat($lat);
 662                                 $user->long($long);
 663                         } elsif ($field[2] == 4) {
 664                                 $user->homenode($field[3]);
 665                         }
 666                         $user->put;
 667                         last SWITCH;
 668                 }
 669                 if ($pcno == 43) {
 670                         last SWITCH;
 671                 }
 672                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 673                         DXDb::process($self, $line);
 674                         return;
 675                 }
 676
 677                 if ($pcno == 50) {              # keep alive/user list
 678                         my $node = DXCluster->get_exact($field[1]);
 679                         if ($node) {
 680                                 return unless $node->isa('DXNode');
 681                                 return unless $node->dxchan == $self;
 682                                 $node->update_users($field[2]);
 683                         }
 684                         last SWITCH;
 685                 }
 686
 687                 if ($pcno == 51) {              # incoming ping requests/answers
 688
 689                         # is it for us?
 690                         if ($field[1] eq $main::mycall) {
 691                                 my $flag = $field[3];
 692                                 if ($flag == 1) {
 693                                         $self->send(pc51($field[2], $field[1], '0'));
 694                                 } else {
 695                                         # it's a reply, look in the ping list for this one
 696                                         my $ref = $pings{$field[2]};
 697                                         if ($ref) {
 698                                                 my $tochan =  DXChannel->get($field[2]);
 699                                                 while (@$ref) {
 700                                                         my $r = shift @$ref;
 701                                                         my $dxchan = DXChannel->get($r->{call});
 702                                                         next unless $dxchan;
 703                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 704                                                         if ($dxchan->is_user) {
 705                                                                 my $s = sprintf "%.2f", $t;
 706                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 707                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 708                                                         } elsif ($dxchan->is_node) {
 709                                                                 if ($tochan) {
 710                                                                         $tochan->{nopings} = 2; # pump up the timer
 711                                                                         push @{$tochan->{pingtime}}, $t;
 712                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 713                                                                         my $st;
 714                                                                         for (@{$tochan->{pingtime}}) {
 715                                                                                 $st += $_;
 716                                                                         }
 717                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 718                                                                 }
 719                                                         }
 720                                                 }
 721                                         }
 722                                 }
 723                         } else {
 724                                 # route down an appropriate thingy
 725                                 $self->route($field[1], $line);
 726                         }
 727                         return;
 728                 }
 729
 730                 if ($pcno == 73) {  # WCY broadcasts
 731
 732                         # do some de-duping
 733                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 734                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 735                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 736                                 return;
 737                         }
 738                         @field = map { unpad($_) } @field;
 739                         if (WCY::dup($d,@field[3..7])) {
 740                                 dbg('chan', "Dup WCY Spot ignored\n");
 741                                 return;
 742                         }
 743
 744                         my $wcy = WCY::update($d, @field[2..12]);
 745
 746                         my $rep;
 747                         eval {
 748                                 $rep = Local::wwv($self, @field[1..12]);
 749                         };
 750                         # dbg('local', "Local::wcy error $@") if $@;
 751                         return if $rep;
 752
 753                         # broadcast to the eager world
 754                         send_wcy_spot($self, $line, $d, @field[2..12]);
 755                         return;
 756                 }
 757
 758                 if ($pcno == 84) { # remote commands (incoming)
 759                         if ($field[1] eq $main::mycall) {
 760                                 my $ref = DXUser->get_current($field[2]);
 761                                 my $cref = DXCluster->get($field[2]);
 762                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 763                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 764                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 765                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 766                                                 my $oldpriv = $self->{priv};
 767                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 768                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 769                                                 $self->{priv} = $oldpriv;
 770                                                 for (@in) {
 771                                                         s/\s*$//og;
 772                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 773                                                         Log('rcmd', 'out', $field[2], $_);
 774                                                 }
 775                                                 delete $self->{remotecmd};
 776                                         } else {
 777                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 778                                         }
 779                                 } else {
 780                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 781                                 }
 782                         } else {
 783                                 my $ref = DXUser->get_current($field[1]);
 784                                 if ($ref && $ref->is_clx) {
 785                                         $self->route($field[1], $line);
 786                                 } else {
 787                                         route($field[1], pc34($field[2], $field[1], $field[3]));
 788                                 }
 789                         }
 790                         return;
 791                 }
 792
 793                 if ($pcno == 85) {              # remote command replies
 794                         if ($field[1] eq $main::mycall) {
 795                                 my $dxchan = DXChannel->get($field[3]);
 796                                 if ($dxchan) {
 797                                         $dxchan->send($field[4]);
 798                                 } else {
 799                                         my $s = $rcmds{$field[2]};
 800                                         if ($s) {
 801                                                 $dxchan = DXChannel->get($s->{call});
 802                                                 $dxchan->send($field[4]) if $dxchan;
 803                                                 delete $rcmds{$field[2]} if !$dxchan;
 804                                         }
 805                                 }
 806                         } else {
 807                                 my $ref = DXUser->get_current($field[1]);
 808                                 if ($ref && $ref->is_clx) {
 809                                         $self->route($field[1], $line);
 810                                 } else {
 811                                         route($field[1], pc35($field[2], $field[1], $field[3]));
 812                                 }
 813                         }
 814                         return;
 815                 }
 816         }
 817
 818         # if get here then rebroadcast the thing with its Hop count decremented (if
 819         # there is one). If it has a hop count and it decrements to zero then don't
 820         # rebroadcast it.
 821         #
 822         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 823         #        REBROADCAST!!!!
 824         #
 825
 826         unless ($self->{isolate}) {
 827                 broadcast_ak1a($line, $self); # send it to everyone but me
 828         }
 829 }
 830
 831 #
 832 # This is called from inside the main cluster processing loop and is used
 833 # for despatching commands that are doing some long processing job
 834 #
 835 sub process
 836 {
 837         my $t = time;
 838         my @dxchan = DXChannel->get_all();
 839         my $dxchan;
 840
 841         foreach $dxchan (@dxchan) {
 842                 next unless $dxchan->is_node();
 843                 next if $dxchan == $me;
 844
 845                 # send a pc50 out on this channel
 846                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 847                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 848                         $dxchan->pc50_t($t);
 849                 }
 850
 851                 # send a ping out on this channel
 852                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 853                         if ($dxchan->{nopings} <= 0) {
 854                                 $dxchan->disconnect;
 855                         } else {
 856                                 addping($main::mycall, $dxchan->call);
 857                                 $dxchan->{nopings} -= 1;
 858                                 $dxchan->{lastping} = $t;
 859                         }
 860                 }
 861         }
 862
 863         my $key;
 864         my $val;
 865         my $cutoff;
 866         if ($main::systime - 3600 > $last_hour) {
 867                 Spot::process;
 868                 Geomag::process;
 869                 AnnTalk::process;
 870                 $last_hour = $main::systime;
 871         }
 872 }
 873
 874 #
 875 # finish up a pc context
 876 #
 877 sub finish
 878 {
 879         my $self = shift;
 880         my $call = $self->call;
 881         my $conn = shift;
 882         my $ref = DXCluster->get_exact($call);
 883
 884         # unbusy and stop and outgoing mail
 885         my $mref = DXMsg::get_busy($call);
 886         $mref->stop_msg($call) if $mref;
 887
 888         # broadcast to all other nodes that all the nodes connected to via me are gone
 889         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 890         my $node;
 891
 892         foreach $node (@gonenodes) {
 893                 next if $node->call eq $call;
 894                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 895                 $node->del();
 896         }
 897
 898         # remove outstanding pings
 899         delete $pings{$call};
 900
 901         # now broadcast to all other ak1a nodes that I have gone
 902         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 903
 904         # I was the last node visited
 905     $self->user->node($main::mycall);
 906
 907         # send info to all logged in thingies
 908         $self->tell_login('logoutn');
 909
 910         Log('DXProt', $call . " Disconnected");
 911         $ref->del() if $ref;
 912 }
 913
 914 #
 915 # some active measures
 916 #
 917 sub send_dx_spot
 918 {
 919         my $self = shift;
 920         my $line = shift;
 921         my @dxchan = DXChannel->get_all();
 922         my $dxchan;
 923
 924         # send it if it isn't the except list and isn't isolated and still has a hop count
 925         # taking into account filtering and so on
 926         foreach $dxchan (@dxchan) {
 927                 my $routeit;
 928                 my ($filter, $hops);
 929
 930                 if ($dxchan->{spotfilter}) {
 931                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 932                         next unless $filter;
 933                 }
 934
 935                 if ($dxchan->is_node) {
 936                         next if $dxchan == $self;
 937                         if ($hops) {
 938                                 $routeit = $line;
 939                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 940                         } else {
 941                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 942                                 next unless $routeit;
 943                         }
 944                         if ($filter) {
 945                                 $dxchan->send($routeit) if $routeit;
 946                         } else {
 947                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 948                         }
 949                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 950                         my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
 951                         $buf .= "\a\a" if $dxchan->{beep};
 952                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 953                                 $dxchan->send($buf);
 954                         } else {
 955                                 $dxchan->delay($buf);
 956                         }
 957                 }
 958         }
 959 }
 960
 961 sub send_wwv_spot
 962 {
 963         my $self = shift;
 964         my $line = shift;
 965         my @dxchan = DXChannel->get_all();
 966         my $dxchan;
 967
 968         # send it if it isn't the except list and isn't isolated and still has a hop count
 969         # taking into account filtering and so on
 970         foreach $dxchan (@dxchan) {
 971                 my $routeit;
 972                 my ($filter, $hops);
 973
 974                 if ($dxchan->{wwvfilter}) {
 975                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
 976                          next unless $filter;
 977                 }
 978                 if ($dxchan->is_node) {
 979                         next if $dxchan == $self;
 980                         if ($hops) {
 981                                 $routeit = $line;
 982                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 983                         } else {
 984                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 985                                 next unless $routeit;
 986                         }
 987                         if ($filter) {
 988                                 $dxchan->send($routeit) if $routeit;
 989                         } else {
 990                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 991
 992                         }
 993                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
 994                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
 995                         $buf .= "\a\a" if $dxchan->{beep};
 996                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 997                                 $dxchan->send($buf);
 998                         } else {
 999                                 $dxchan->delay($buf);
1000                         }
1001                 }
1002         }
1003 }
1004
1005 sub send_wcy_spot
1006 {
1007         my $self = shift;
1008         my $line = shift;
1009         my @dxchan = DXChannel->get_all();
1010         my $dxchan;
1011
1012         # send it if it isn't the except list and isn't isolated and still has a hop count
1013         # taking into account filtering and so on
1014         foreach $dxchan (@dxchan) {
1015                 my $routeit;
1016                 my ($filter, $hops);
1017
1018                 if ($dxchan->{wcyfilter}) {
1019                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1020                          next unless $filter;
1021                 }
1022                 if ($dxchan->is_clx || $dxchan->is_spider) {
1023                         next if $dxchan == $self;
1024                         if ($hops) {
1025                                 $routeit = $line;
1026                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1027                         } else {
1028                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1029                                 next unless $routeit;
1030                         }
1031                         if ($filter) {
1032                                 $dxchan->send($routeit) if $routeit;
1033                         } else {
1034                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1035                         }
1036                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1037                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1038                         $buf .= "\a\a" if $dxchan->{beep};
1039                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1040                                 $dxchan->send($buf);
1041                         } else {
1042                                 $dxchan->delay($buf);
1043                         }
1044                 }
1045         }
1046 }
1047
1048 # send an announce
1049 sub send_announce
1050 {
1051         my $self = shift;
1052         my $line = shift;
1053         my @dxchan = DXChannel->get_all();
1054         my $dxchan;
1055         my $text = unpad($_[2]);
1056         my $target;
1057         my $to = 'To ';
1058
1059         if ($_[3] eq '*') {     # sysops
1060                 $target = "SYSOP";
1061         } elsif ($_[3] gt ' ') { # speciality list handling
1062                 my ($name) = split /\./, $_[3];
1063                 $target = "$name"; # put the rest in later (if bothered)
1064         }
1065
1066         if ($_[5] eq '1') {
1067                 $target = "WX";
1068                 $to = '';
1069         }
1070         $target = "All" if !$target;
1071
1072         Log('ann', $target, $_[0], $text);
1073
1074         # send it if it isn't the except list and isn't isolated and still has a hop count
1075         # taking into account filtering and so on
1076         foreach $dxchan (@dxchan) {
1077                 my $routeit;
1078                 my ($filter, $hops);
1079
1080                 if ($dxchan->{annfilter}) {
1081                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1082                         next unless $filter;
1083                 }
1084                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1085                         next if $dxchan == $self;
1086                         if ($hops) {
1087                                 $routeit = $line;
1088                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1089                         } else {
1090                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1091                                 next unless $routeit;
1092                         }
1093                         if ($filter) {
1094                                 $dxchan->send($routeit) if $routeit;
1095                         } else {
1096                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1097
1098                         }
1099                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1100                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1101                         my $buf = "$to$target de $_[0]: $text";
1102                         $buf .= "\a\a" if $dxchan->{beep};
1103                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1104                                 $dxchan->send($buf);
1105                         } else {
1106                                 $dxchan->delay($buf);
1107                         }
1108                 }
1109         }
1110 }
1111
1112 sub send_local_config
1113 {
1114         my $self = shift;
1115         my $n;
1116         my @nodes;
1117         my @localnodes;
1118         my @remotenodes;
1119
1120         # send our nodes
1121         if ($self->{isolate}) {
1122                 @localnodes = (DXCluster->get_exact($main::mycall));
1123         } else {
1124                 # create a list of all the nodes that are not connected to this connection
1125                 # and are not themselves isolated, this to make sure that isolated nodes
1126         # don't appear outside of this node
1127                 @nodes = DXNode::get_all();
1128                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1129                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1130                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1131                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1132                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1133                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1134         }
1135
1136         my @s = $me->pc19(@localnodes, @remotenodes);
1137         for (@s) {
1138                 my $routeit = adjust_hops($self, $_);
1139                 $self->send($routeit) if $routeit;
1140         }
1141
1142         # get all the users connected on the above nodes and send them out
1143         foreach $n (@localnodes, @remotenodes) {
1144                 my @users = values %{$n->list};
1145                 my @s = pc16($n, @users);
1146                 for (@s) {
1147                         my $routeit = adjust_hops($self, $_);
1148                         $self->send($routeit) if $routeit;
1149                 }
1150         }
1151 }
1152
1153 #
1154 # route a message down an appropriate interface for a callsign
1155 #
1156 # is called route(to, pcline);
1157 #
1158 sub route
1159 {
1160         my ($self, $call, $line) = @_;
1161         my $cl = DXCluster->get_exact($call);
1162         if ($cl) {       # don't route it back down itself
1163                 if (ref $self && $call eq $self->{call}) {
1164                         dbg('chan', "Trying to route back to source, dropped");
1165                         return;
1166                 }
1167                 my $hops;
1168                 my $dxchan = $cl->{dxchan};
1169                 if ($dxchan) {
1170                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1171                         if ($routeit) {
1172                                 $dxchan->send($routeit) if $dxchan;
1173                         }
1174                 }
1175         }
1176 }
1177
1178 # broadcast a message to all clusters taking into account isolation
1179 # [except those mentioned after buffer]
1180 sub broadcast_ak1a
1181 {
1182         my $s = shift;                          # the line to be rebroadcast
1183         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1184         my @dxchan = DXChannel::get_all_ak1a();
1185         my $dxchan;
1186
1187         # send it if it isn't the except list and isn't isolated and still has a hop count
1188         foreach $dxchan (@dxchan) {
1189                 next if grep $dxchan == $_, @except;
1190                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1191                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1192         }
1193 }
1194
1195 # broadcast a message to all clusters ignoring isolation
1196 # [except those mentioned after buffer]
1197 sub broadcast_all_ak1a
1198 {
1199         my $s = shift;                          # the line to be rebroadcast
1200         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1201         my @dxchan = DXChannel::get_all_ak1a();
1202         my $dxchan;
1203
1204         # send it if it isn't the except list and isn't isolated and still has a hop count
1205         foreach $dxchan (@dxchan) {
1206                 next if grep $dxchan == $_, @except;
1207                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1208                 $dxchan->send($routeit);
1209         }
1210 }
1211
1212 # broadcast to all users
1213 # storing the spot or whatever until it is in a state to receive it
1214 sub broadcast_users
1215 {
1216         my $s = shift;                          # the line to be rebroadcast
1217         my $sort = shift;           # the type of transmission
1218         my $fref = shift;           # a reference to an object to filter on
1219         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1220         my @dxchan = DXChannel::get_all_users();
1221         my $dxchan;
1222         my @out;
1223
1224         foreach $dxchan (@dxchan) {
1225                 next if grep $dxchan == $_, @except;
1226                 push @out, $dxchan;
1227         }
1228         broadcast_list($s, $sort, $fref, @out);
1229 }
1230
1231 # broadcast to a list of users
1232 sub broadcast_list
1233 {
1234         my $s = shift;
1235         my $sort = shift;
1236         my $fref = shift;
1237         my $dxchan;
1238
1239         foreach $dxchan (@_) {
1240                 my $filter = 1;
1241
1242                 if ($sort eq 'dx') {
1243                     next unless $dxchan->{dx};
1244                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1245                         next unless $filter;
1246                 }
1247                 next if $sort eq 'ann' && !$dxchan->{ann};
1248                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1249                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1250                 next if $sort eq 'wx' && !$dxchan->{wx};
1251
1252                 $s =~ s/\a//og unless $dxchan->{beep};
1253
1254                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1255                         $dxchan->send($s);
1256                 } else {
1257                         $dxchan->delay($s);
1258                 }
1259         }
1260 }
1261
1262
1263 #
1264 # obtain the hops from the list for this callsign and pc no
1265 #
1266
1267 sub get_hops
1268 {
1269         my $pcno = shift;
1270         my $hops = $DXProt::hopcount{$pcno};
1271         $hops = $DXProt::def_hopcount if !$hops;
1272         return "H$hops";
1273 }
1274
1275 #
1276 # adjust the hop count on a per node basis using the user loadable
1277 # hop table if available or else decrement an existing one
1278 #
1279
1280 sub adjust_hops
1281 {
1282         my $self = shift;
1283         my $s = shift;
1284         my $call = $self->{call};
1285         my $hops;
1286
1287         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1288                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1289                 confess "$call called adjust_hops with '$s'" unless $pcno;
1290                 my $ref = $nodehops{$call} if %nodehops;
1291                 if ($ref) {
1292                         my $newhops = $ref->{$pcno};
1293                         return "" if defined $newhops && $newhops == 0;
1294                         $newhops = $ref->{default} unless $newhops;
1295                         return "" if defined $newhops && $newhops == 0;
1296                         $newhops = $hops if !$newhops;
1297                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1298                 } else {
1299                         # simply decrement it
1300                         $hops--;
1301                         return "" if !$hops;
1302                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1303                 }
1304         }
1305         return $s;
1306 }
1307
1308 #
1309 # load hop tables
1310 #
1311 sub load_hops
1312 {
1313         my $self = shift;
1314         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1315         do "$main::data/hop_table.pl";
1316         return $@ if $@;
1317         return 0;
1318 }
1319
1320
1321 # add a ping request to the ping queues
1322 sub addping
1323 {
1324         my ($from, $to) = @_;
1325         my $ref = $pings{$to} || [];
1326         my $r = {};
1327         $r->{call} = $from;
1328         $r->{t} = [ gettimeofday ];
1329         route(undef, $to, pc51($to, $main::mycall, 1));
1330         push @$ref, $r;
1331         $pings{$to} = $ref;
1332 }
1333
1334 # add a rcmd request to the rcmd queues
1335 sub addrcmd
1336 {
1337         my ($self, $to, $cmd) = @_;
1338
1339         my $r = {};
1340         $r->{call} = $self->{call};
1341         $r->{t} = $main::systime;
1342         $r->{cmd} = $cmd;
1343         $rcmds{$to} = $r;
1344
1345         my $ref = DXCluster->get_exact($to);
1346     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1347                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1348         } else {
1349                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1350         }
1351 }
1352
1353 sub disconnect
1354 {
1355         my $self = shift;
1356         my $nopc39 = shift;
1357
1358         if ($self->{conn} && !$nopc39) {
1359                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1360         }
1361
1362         $self->SUPER::disconnect;
1363 }
1364 1;
1365 __END__