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 $nopc39 = shift;
 882         my $ref = DXCluster->get_exact($call);
 883
 884         $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op"))) unless $nopc39;
 885
 886         # unbusy and stop and outgoing mail
 887         my $mref = DXMsg::get_busy($call);
 888         $mref->stop_msg($call) if $mref;
 889
 890         # broadcast to all other nodes that all the nodes connected to via me are gone
 891         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 892         my $node;
 893
 894         foreach $node (@gonenodes) {
 895                 next if $node->call eq $call;
 896                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 897                 $node->del();
 898         }
 899
 900         # remove outstanding pings
 901         delete $pings{$call};
 902
 903         # now broadcast to all other ak1a nodes that I have gone
 904         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 905
 906         # I was the last node visited
 907     $self->user->node($main::mycall);
 908
 909         # send info to all logged in thingies
 910         $self->tell_login('logoutn');
 911
 912         Log('DXProt', $call . " Disconnected");
 913         $ref->del() if $ref;
 914 }
 915
 916 #
 917 # some active measures
 918 #
 919 sub send_dx_spot
 920 {
 921         my $self = shift;
 922         my $line = shift;
 923         my @dxchan = DXChannel->get_all();
 924         my $dxchan;
 925
 926         # send it if it isn't the except list and isn't isolated and still has a hop count
 927         # taking into account filtering and so on
 928         foreach $dxchan (@dxchan) {
 929                 my $routeit;
 930                 my ($filter, $hops);
 931
 932                 if ($dxchan->{spotfilter}) {
 933                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 934                         next unless $filter;
 935                 }
 936
 937                 if ($dxchan->is_node) {
 938                         next if $dxchan == $self;
 939                         if ($hops) {
 940                                 $routeit = $line;
 941                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 942                         } else {
 943                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 944                                 next unless $routeit;
 945                         }
 946                         if ($filter) {
 947                                 $dxchan->send($routeit) if $routeit;
 948                         } else {
 949                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 950                         }
 951                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 952                         my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
 953                         $buf .= "\a\a" if $dxchan->{beep};
 954                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 955                                 $dxchan->send($buf);
 956                         } else {
 957                                 $dxchan->delay($buf);
 958                         }
 959                 }
 960         }
 961 }
 962
 963 sub send_wwv_spot
 964 {
 965         my $self = shift;
 966         my $line = shift;
 967         my @dxchan = DXChannel->get_all();
 968         my $dxchan;
 969
 970         # send it if it isn't the except list and isn't isolated and still has a hop count
 971         # taking into account filtering and so on
 972         foreach $dxchan (@dxchan) {
 973                 my $routeit;
 974                 my ($filter, $hops);
 975
 976                 if ($dxchan->{wwvfilter}) {
 977                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
 978                          next unless $filter;
 979                 }
 980                 if ($dxchan->is_node) {
 981                         next if $dxchan == $self;
 982                         if ($hops) {
 983                                 $routeit = $line;
 984                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 985                         } else {
 986                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 987                                 next unless $routeit;
 988                         }
 989                         if ($filter) {
 990                                 $dxchan->send($routeit) if $routeit;
 991                         } else {
 992                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 993
 994                         }
 995                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
 996                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
 997                         $buf .= "\a\a" if $dxchan->{beep};
 998                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 999                                 $dxchan->send($buf);
1000                         } else {
1001                                 $dxchan->delay($buf);
1002                         }
1003                 }
1004         }
1005 }
1006
1007 sub send_wcy_spot
1008 {
1009         my $self = shift;
1010         my $line = shift;
1011         my @dxchan = DXChannel->get_all();
1012         my $dxchan;
1013
1014         # send it if it isn't the except list and isn't isolated and still has a hop count
1015         # taking into account filtering and so on
1016         foreach $dxchan (@dxchan) {
1017                 my $routeit;
1018                 my ($filter, $hops);
1019
1020                 if ($dxchan->{wcyfilter}) {
1021                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1022                          next unless $filter;
1023                 }
1024                 if ($dxchan->is_clx || $dxchan->is_spider) {
1025                         next if $dxchan == $self;
1026                         if ($hops) {
1027                                 $routeit = $line;
1028                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1029                         } else {
1030                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1031                                 next unless $routeit;
1032                         }
1033                         if ($filter) {
1034                                 $dxchan->send($routeit) if $routeit;
1035                         } else {
1036                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1037                         }
1038                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1039                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1040                         $buf .= "\a\a" if $dxchan->{beep};
1041                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1042                                 $dxchan->send($buf);
1043                         } else {
1044                                 $dxchan->delay($buf);
1045                         }
1046                 }
1047         }
1048 }
1049
1050 # send an announce
1051 sub send_announce
1052 {
1053         my $self = shift;
1054         my $line = shift;
1055         my @dxchan = DXChannel->get_all();
1056         my $dxchan;
1057         my $text = unpad($_[2]);
1058         my $target;
1059         my $to = 'To ';
1060
1061         if ($_[3] eq '*') {     # sysops
1062                 $target = "SYSOP";
1063         } elsif ($_[3] gt ' ') { # speciality list handling
1064                 my ($name) = split /\./, $_[3];
1065                 $target = "$name"; # put the rest in later (if bothered)
1066         }
1067
1068         if ($_[5] eq '1') {
1069                 $target = "WX";
1070                 $to = '';
1071         }
1072         $target = "All" if !$target;
1073
1074         Log('ann', $target, $_[0], $text);
1075
1076         # send it if it isn't the except list and isn't isolated and still has a hop count
1077         # taking into account filtering and so on
1078         foreach $dxchan (@dxchan) {
1079                 my $routeit;
1080                 my ($filter, $hops);
1081
1082                 if ($dxchan->{annfilter}) {
1083                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1084                         next unless $filter;
1085                 }
1086                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1087                         next if $dxchan == $self;
1088                         if ($hops) {
1089                                 $routeit = $line;
1090                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1091                         } else {
1092                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1093                                 next unless $routeit;
1094                         }
1095                         if ($filter) {
1096                                 $dxchan->send($routeit) if $routeit;
1097                         } else {
1098                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1099
1100                         }
1101                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1102                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1103                         my $buf = "$to$target de $_[0]: $text";
1104                         $buf .= "\a\a" if $dxchan->{beep};
1105                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1106                                 $dxchan->send($buf);
1107                         } else {
1108                                 $dxchan->delay($buf);
1109                         }
1110                 }
1111         }
1112 }
1113
1114 sub send_local_config
1115 {
1116         my $self = shift;
1117         my $n;
1118         my @nodes;
1119         my @localnodes;
1120         my @remotenodes;
1121
1122         # send our nodes
1123         if ($self->{isolate}) {
1124                 @localnodes = (DXCluster->get_exact($main::mycall));
1125         } else {
1126                 # create a list of all the nodes that are not connected to this connection
1127                 # and are not themselves isolated, this to make sure that isolated nodes
1128         # don't appear outside of this node
1129                 @nodes = DXNode::get_all();
1130                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1131                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1132                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1133                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1134                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1135                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1136         }
1137
1138         my @s = $me->pc19(@localnodes, @remotenodes);
1139         for (@s) {
1140                 my $routeit = adjust_hops($self, $_);
1141                 $self->send($routeit) if $routeit;
1142         }
1143
1144         # get all the users connected on the above nodes and send them out
1145         foreach $n (@localnodes, @remotenodes) {
1146                 my @users = values %{$n->list};
1147                 my @s = pc16($n, @users);
1148                 for (@s) {
1149                         my $routeit = adjust_hops($self, $_);
1150                         $self->send($routeit) if $routeit;
1151                 }
1152         }
1153 }
1154
1155 #
1156 # route a message down an appropriate interface for a callsign
1157 #
1158 # is called route(to, pcline);
1159 #
1160 sub route
1161 {
1162         my ($self, $call, $line) = @_;
1163         my $cl = DXCluster->get_exact($call);
1164         if ($cl) {       # don't route it back down itself
1165                 if (ref $self && $call eq $self->{call}) {
1166                         dbg('chan', "Trying to route back to source, dropped");
1167                         return;
1168                 }
1169                 my $hops;
1170                 my $dxchan = $cl->{dxchan};
1171                 if ($dxchan) {
1172                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1173                         if ($routeit) {
1174                                 $dxchan->send($routeit) if $dxchan;
1175                         }
1176                 }
1177         }
1178 }
1179
1180 # broadcast a message to all clusters taking into account isolation
1181 # [except those mentioned after buffer]
1182 sub broadcast_ak1a
1183 {
1184         my $s = shift;                          # the line to be rebroadcast
1185         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1186         my @dxchan = DXChannel::get_all_ak1a();
1187         my $dxchan;
1188
1189         # send it if it isn't the except list and isn't isolated and still has a hop count
1190         foreach $dxchan (@dxchan) {
1191                 next if grep $dxchan == $_, @except;
1192                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1193                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1194         }
1195 }
1196
1197 # broadcast a message to all clusters ignoring isolation
1198 # [except those mentioned after buffer]
1199 sub broadcast_all_ak1a
1200 {
1201         my $s = shift;                          # the line to be rebroadcast
1202         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1203         my @dxchan = DXChannel::get_all_ak1a();
1204         my $dxchan;
1205
1206         # send it if it isn't the except list and isn't isolated and still has a hop count
1207         foreach $dxchan (@dxchan) {
1208                 next if grep $dxchan == $_, @except;
1209                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1210                 $dxchan->send($routeit);
1211         }
1212 }
1213
1214 # broadcast to all users
1215 # storing the spot or whatever until it is in a state to receive it
1216 sub broadcast_users
1217 {
1218         my $s = shift;                          # the line to be rebroadcast
1219         my $sort = shift;           # the type of transmission
1220         my $fref = shift;           # a reference to an object to filter on
1221         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1222         my @dxchan = DXChannel::get_all_users();
1223         my $dxchan;
1224         my @out;
1225
1226         foreach $dxchan (@dxchan) {
1227                 next if grep $dxchan == $_, @except;
1228                 push @out, $dxchan;
1229         }
1230         broadcast_list($s, $sort, $fref, @out);
1231 }
1232
1233 # broadcast to a list of users
1234 sub broadcast_list
1235 {
1236         my $s = shift;
1237         my $sort = shift;
1238         my $fref = shift;
1239         my $dxchan;
1240
1241         foreach $dxchan (@_) {
1242                 my $filter = 1;
1243
1244                 if ($sort eq 'dx') {
1245                     next unless $dxchan->{dx};
1246                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1247                         next unless $filter;
1248                 }
1249                 next if $sort eq 'ann' && !$dxchan->{ann};
1250                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1251                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1252                 next if $sort eq 'wx' && !$dxchan->{wx};
1253
1254                 $s =~ s/\a//og unless $dxchan->{beep};
1255
1256                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1257                         $dxchan->send($s);
1258                 } else {
1259                         $dxchan->delay($s);
1260                 }
1261         }
1262 }
1263
1264
1265 #
1266 # obtain the hops from the list for this callsign and pc no
1267 #
1268
1269 sub get_hops
1270 {
1271         my $pcno = shift;
1272         my $hops = $DXProt::hopcount{$pcno};
1273         $hops = $DXProt::def_hopcount if !$hops;
1274         return "H$hops";
1275 }
1276
1277 #
1278 # adjust the hop count on a per node basis using the user loadable
1279 # hop table if available or else decrement an existing one
1280 #
1281
1282 sub adjust_hops
1283 {
1284         my $self = shift;
1285         my $s = shift;
1286         my $call = $self->{call};
1287         my $hops;
1288
1289         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1290                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1291                 confess "$call called adjust_hops with '$s'" unless $pcno;
1292                 my $ref = $nodehops{$call} if %nodehops;
1293                 if ($ref) {
1294                         my $newhops = $ref->{$pcno};
1295                         return "" if defined $newhops && $newhops == 0;
1296                         $newhops = $ref->{default} unless $newhops;
1297                         return "" if defined $newhops && $newhops == 0;
1298                         $newhops = $hops if !$newhops;
1299                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1300                 } else {
1301                         # simply decrement it
1302                         $hops--;
1303                         return "" if !$hops;
1304                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1305                 }
1306         }
1307         return $s;
1308 }
1309
1310 #
1311 # load hop tables
1312 #
1313 sub load_hops
1314 {
1315         my $self = shift;
1316         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1317         do "$main::data/hop_table.pl";
1318         return $@ if $@;
1319         return 0;
1320 }
1321
1322
1323 # add a ping request to the ping queues
1324 sub addping
1325 {
1326         my ($from, $to) = @_;
1327         my $ref = $pings{$to} || [];
1328         my $r = {};
1329         $r->{call} = $from;
1330         $r->{t} = [ gettimeofday ];
1331         route(undef, $to, pc51($to, $main::mycall, 1));
1332         push @$ref, $r;
1333         $pings{$to} = $ref;
1334 }
1335
1336 # add a rcmd request to the rcmd queues
1337 sub addrcmd
1338 {
1339         my ($self, $to, $cmd) = @_;
1340
1341         my $r = {};
1342         $r->{call} = $self->{call};
1343         $r->{t} = $main::systime;
1344         $r->{cmd} = $cmd;
1345         $rcmds{$to} = $r;
1346
1347         my $ref = DXCluster->get_exact($to);
1348     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1349                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1350         } else {
1351                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1352         }
1353 }
1354 1;
1355 __END__