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 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  41 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  42
  43 $last_hour = time;                              # last time I did an hourly periodic update
  44 %pings = ();                    # outstanding ping requests outbound
  45 %rcmds = ();                    # outstanding rcmd requests outbound
  46 %nodehops = ();                 # node specific hop control
  47 @baddx = ();                    # list of illegal spotted callsigns
  48
  49
  50 $baddxfn = "$main::data/baddx.pl";
  51
  52 sub init
  53 {
  54         my $user = DXUser->get($main::mycall);
  55         $DXProt::myprot_version += $main::version*100;
  56         $me = DXProt->new($main::mycall, 0, $user);
  57         $me->{here} = 1;
  58         $me->{state} = "indifferent";
  59         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
  60         confess $@ if $@;
  61         #  $me->{sort} = 'M';    # M for me
  62
  63         # now prime the spot and wwv  duplicates file with data
  64     my @today = Julian::unixtoj(time);
  65         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
  66                 Spot::dup(@{$_}[0..3]);
  67         }
  68         for (Geomag::readfile(time)) {
  69                 Geomag::dup(@{$_}[1..5]);
  70         }
  71
  72         # load the baddx file
  73         do "$baddxfn" if -e "$baddxfn";
  74         print "$@\n" if $@;
  75 }
  76
  77 #
  78 # obtain a new connection this is derived from dxchannel
  79 #
  80
  81 sub new
  82 {
  83         my $self = DXChannel::alloc(@_);
  84         return $self;
  85 }
  86
  87 # this is how a pc connection starts (for an incoming connection)
  88 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
  89 # all the crap that comes between).
  90 sub start
  91 {
  92         my ($self, $line, $sort) = @_;
  93         my $call = $self->{call};
  94         my $user = $self->{user};
  95
  96         # remember type of connection
  97         $self->{consort} = $line;
  98         $self->{outbound} = $sort eq 'O';
  99         $self->{priv} = $user->priv;
 100         $self->{lang} = $user->lang;
 101         $self->{isolate} = $user->{isolate};
 102         $self->{consort} = $line;       # save the connection type
 103         $self->{here} = 1;
 104
 105         # get the INPUT filters (these only pertain to Clusters)
 106         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 107         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 108         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 109         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 110
 111         # set unbuffered and no echo
 112         $self->send_now('B',"0");
 113         $self->send_now('E',"0");
 114
 115         # ping neighbour node stuff
 116         my $ping = $user->pingint;
 117         $ping = 5*60 unless defined $ping;
 118         $self->{pingint} = $ping;
 119         $self->{nopings} = $user->nopings || 2;
 120         $self->{pingtime} = [ ];
 121         $self->{pingave} = 0;
 122
 123         # send initialisation string
 124         unless ($self->{outbound}) {
 125                 $self->send(pc38()) if DXNode->get_all();
 126                 $self->send(pc18());
 127                 $self->{lastping} = $main::systime;
 128         } else {
 129                 # remove from outstanding connects queue
 130                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 131                 $self->{lastping} = $main::systime + $self->pingint / 2;
 132         }
 133         $self->state('init');
 134         $self->pc50_t(time);
 135
 136         # send info to all logged in thingies
 137         $self->tell_login('loginn');
 138
 139         Log('DXProt', "$call connected");
 140 }
 141
 142 #
 143 # This is the normal pcxx despatcher
 144 #
 145 sub normal
 146 {
 147         my ($self, $line) = @_;
 148         my @field = split /\^/, $line;
 149         pop @field if $field[-1] eq '~';
 150
 151 #       print join(',', @field), "\n";
 152
 153         # ignore any lines that don't start with PC
 154         return if !$field[0] =~ /^PC/;
 155
 156         # process PC frames
 157         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 158         return unless $pcno;
 159         return if $pcno < 10 || $pcno > 99;
 160
 161         # dump bad protocol messages unless it is a PC29
 162         if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
 163                 dbg('chan', "CORRUPT protocol message - dumped");
 164                 return;
 165         }
 166
 167         # local processing 1
 168         my $pcr;
 169         eval {
 170                 $pcr = Local::pcprot($self, $pcno, @field);
 171         };
 172 #       dbg('local', "Local::pcprot error $@") if $@;
 173         return if $pcr;
 174
 175  SWITCH: {
 176                 if ($pcno == 10) {              # incoming talk
 177
 178                         # is it for me or one of mine?
 179                         my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
 180                         if ($call eq $main::mycall || grep $_ eq $call, DXChannel::get_all_user_calls()) {
 181
 182                                 # yes, it is
 183                                 my $text = unpad($field[3]);
 184                                 Log('talk', $call, $field[1], $field[6], $text);
 185                                 $call = $main::myalias if $call eq $main::mycall;
 186                                 my $ref = DXChannel->get($call);
 187                                 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
 188                         } else {
 189                                 $self->route($field[2], $line); # relay it on its way
 190                         }
 191                         return;
 192                 }
 193
 194                 if ($pcno == 11 || $pcno == 26) { # dx spot
 195
 196                         # route 'foreign' pc26s
 197                         if ($pcno == 26) {
 198                                 if ($field[7] ne $main::mycall) {
 199                                         $self->route($field[7], $line);
 200                                         return;
 201                                 }
 202                         }
 203
 204                         # if this is a 'nodx' node then ignore it
 205                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 206                                 dbg('chan', "Bad DXNode, dropped");
 207                                 return;
 208                         }
 209
 210                         # convert the date to a unix date
 211                         my $d = cltounix($field[3], $field[4]);
 212                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 213                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 214                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 215                                 return;
 216                         }
 217
 218                         # is it 'baddx'
 219                         if (grep $field[2] eq $_, @baddx) {
 220                                 dbg('chan', "Bad DX spot, ignored");
 221                                 return;
 222                         }
 223
 224                         # are any of the crucial fields invalid?
 225             if ($field[2] =~ /(?:^\s*$|[a-z])/ || $field[6] =~ /(?:^\s*$|[a-z])/ || $field[7] =~ /(?:^\s*$|[a-z])/) {
 226                                 dbg('chan', "Spot contains lower case callsigns or blanks, rejected");
 227                                 return;
 228                         }
 229
 230                         # do some de-duping
 231                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 232                         if (Spot::dup($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                         # fix up qra locators of known users
 247                         my $user = DXUser->get_current($spot[4]);
 248                         if ($user) {
 249                                 my $qra = $user->qra;
 250                                 if (!DXBearing::is_qra) {
 251                                         my $lat = $user->lat;
 252                                         my $long = $user->long;
 253                                         if (defined $lat && defined $long) {
 254                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 255                                                 $user->put;
 256                                         }
 257                                 }
 258                         }
 259
 260                         # local processing
 261                         my $r;
 262                         eval {
 263                                 $r = Local::spot($self, @spot);
 264                         };
 265 #                       dbg('local', "Local::spot1 error $@") if $@;
 266                         return if $r;
 267
 268                         # DON'T be silly and send on PC26s!
 269                         return if $pcno == 26;
 270
 271                         # send out the filtered spots
 272                         send_dx_spot($self, $line, @spot) if @spot;
 273                         return;
 274                 }
 275
 276                 if ($pcno == 12) {              # announces
 277                         # announce duplicate checking
 278                         $field[3] =~ s/^\s+//;  # remove leading blanks
 279                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 280                                 dbg('chan', "Duplicate Announce ignored\n");
 281                                 return;
 282                         }
 283
 284                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 285
 286                                 # global ann filtering on INPUT
 287                                 if ($self->{inannfilter}) {
 288                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 289                                         unless ($filter) {
 290                                                 dbg('chan', "Rejected by filter");
 291                                                 return;
 292                                         }
 293                                 }
 294
 295                                 # send it
 296                                 $self->send_announce($line, @field[1..6]);
 297                         } else {
 298                                 $self->route($field[2], $line);
 299                         }
 300
 301                         return;
 302                 }
 303
 304                 if ($pcno == 13) {
 305                         last SWITCH;
 306                 }
 307                 if ($pcno == 14) {
 308                         last SWITCH;
 309                 }
 310                 if ($pcno == 15) {
 311                         last SWITCH;
 312                 }
 313
 314                 if ($pcno == 16) {              # add a user
 315                         my $node = DXCluster->get_exact($field[1]);
 316                         my $dxchan;
 317                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 318                                 # add it to the node table if it isn't present and it's
 319                                 # connected locally
 320                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 321                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 322
 323                         }
 324                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 325                         return unless $node->isa('DXNode');
 326                         if ($node->dxchan != $self) {
 327                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 328                                 return;
 329                         }
 330                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 331                                 dbg('chan', "LOOP: $field[1] connected locally");
 332                                 return;
 333                         }
 334                         my $i;
 335
 336                         for ($i = 2; $i < $#field; $i++) {
 337                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 338                                 next if !$call || length $call < 3 || length $call > 8;
 339                                 next if !$confmode;
 340                                 $call = uc $call;
 341                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 342
 343                                 $confmode = $confmode eq '*';
 344                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 345
 346                                 # add this station to the user database, if required
 347                                 $call =~ s/-\d+$//o;        # remove ssid for users
 348                                 my $user = DXUser->get_current($call);
 349                                 $user = DXUser->new($call) if !$user;
 350                                 $user->homenode($node->call) if !$user->homenode;
 351                                 $user->node($node->call);
 352                                 $user->lastin($main::systime) unless DXChannel->get($call);
 353                                 $user->put;
 354                         }
 355
 356                         # queue up any messages (look for privates only)
 357                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 358                         last SWITCH;
 359                 }
 360
 361                 if ($pcno == 17) {              # remove a user
 362                         my $node = DXCluster->get_exact($field[2]);
 363                         my $dxchan;
 364                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 365                                 # add it to the node table if it isn't present and it's
 366                                 # connected locally
 367                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 368                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 369                                 return;
 370                         }
 371                         return unless $node;
 372                         return unless $node->isa('DXNode');
 373                         if ($node->dxchan != $self) {
 374                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 375                                 return;
 376                         }
 377                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 378                                 dbg('chan', "LOOP: $field[2] connected locally");
 379                                 return;
 380                         }
 381                         my $ref = DXCluster->get_exact($field[1]);
 382                         $ref->del() if $ref;
 383                         last SWITCH;
 384                 }
 385
 386                 if ($pcno == 18) {              # link request
 387                         $self->state('init');
 388
 389                         # first clear out any nodes on this dxchannel
 390                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 391                         foreach my $node (@gonenodes) {
 392                                 next if $node->dxchan == $DXProt::me;
 393                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 394                                 $node->del();
 395                         }
 396                         $self->send_local_config();
 397                         $self->send(pc20());
 398                         return;             # we don't pass these on
 399                 }
 400
 401                 if ($pcno == 19) {              # incoming cluster list
 402                         my $i;
 403                         my $newline = "PC19^";
 404                         for ($i = 1; $i < $#field-1; $i += 4) {
 405                                 my $here = $field[$i];
 406                                 my $call = uc $field[$i+1];
 407                                 my $confmode = $field[$i+2];
 408                                 my $ver = $field[$i+3];
 409
 410                                 $ver = 5400 if !$ver && $allowzero;
 411
 412                                 # now check the call over
 413                                 my $node = DXCluster->get_exact($call);
 414                                 if ($node) {
 415                                         my $dxchan;
 416                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 417                                                 dbg('chan', "LOOP: $call connected locally");
 418                                         }
 419                                     if ($node->dxchan != $self) {
 420                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 421                                                 next;
 422                                         }
 423                                         dbg('chan', "already have $call");
 424                                         next;
 425                                 }
 426
 427                                 # check for sane parameters
 428                                 next if $ver < 5000; # only works with version 5 software
 429                                 next if length $call < 3; # min 3 letter callsigns
 430
 431                                 # add it to the nodes table and outgoing line
 432                                 $newline .= "$here^$call^$confmode^$ver^";
 433                                 DXNode->new($self, $call, $confmode, $here, $ver);
 434
 435                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 436                                 my $mref = DXMsg::get_busy($call);
 437                                 $mref->stop_msg($call) if $mref;
 438
 439                                 # add this station to the user database, if required (don't remove SSID from nodes)
 440                                 my $user = DXUser->get_current($call);
 441                                 if (!$user) {
 442                                         $user = DXUser->new($call);
 443                                         $user->sort('A');
 444                                         $user->priv(1);                   # I have relented and defaulted nodes
 445                                         $self->{priv} = 1;                # to user RCMDs allowed
 446                                         $user->homenode($call);
 447                                         $user->node($call);
 448                                 }
 449                                 $user->lastin($main::systime) unless DXChannel->get($call);
 450                                 $user->put;
 451                         }
 452
 453                         return if $newline eq "PC19^";
 454
 455                         # add hop count
 456                         $newline .=  get_hops(19) . "^";
 457                         $line = $newline;
 458                         last SWITCH;
 459                 }
 460
 461                 if ($pcno == 20) {              # send local configuration
 462                         $self->send_local_config();
 463                         $self->send(pc22());
 464                         $self->state('normal');
 465                         return;
 466                 }
 467
 468                 if ($pcno == 21) {              # delete a cluster from the list
 469                         my $call = uc $field[1];
 470                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 471                                 my $node = DXCluster->get_exact($call);
 472                                 if ($node) {
 473                                         if ($node->dxchan != $self) {
 474                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 475                                                 return;
 476                                         }
 477                                         my $dxchan;
 478                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 479                                                 dbg('chan', "LOOP: $call connected locally");
 480                                                 return;
 481                                         }
 482                                         $node->del();
 483                                 } else {
 484                                         dbg('chan', "$call not in table, dropped");
 485                                         return;
 486                                 }
 487                         }
 488                         last SWITCH;
 489                 }
 490
 491                 if ($pcno == 22) {
 492                         $self->state('normal');
 493                         return;
 494                 }
 495
 496                 if ($pcno == 23 || $pcno == 27) { # WWV info
 497
 498                         # route 'foreign' pc27s
 499                         if ($pcno == 27) {
 500                                 if ($field[8] ne $main::mycall) {
 501                                         $self->route($field[8], $line);
 502                                         return;
 503                                 }
 504                         }
 505
 506                         # do some de-duping
 507                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 508                         my $sfi = unpad($field[3]);
 509                         my $k = unpad($field[4]);
 510                         my $i = unpad($field[5]);
 511                         my ($r) = $field[6] =~ /R=(\d+)/;
 512                         $r = 0 unless $r;
 513                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 514                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 515                                 return;
 516                         }
 517                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 518                                 dbg('chan', "Dup WWV Spot ignored\n");
 519                                 return;
 520                         }
 521                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 522
 523                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 524
 525                         my $rep;
 526                         eval {
 527                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 528                         };
 529 #                       dbg('local', "Local::wwv2 error $@") if $@;
 530                         return if $rep;
 531
 532                         # DON'T be silly and send on PC27s!
 533                         return if $pcno == 27;
 534
 535                         # broadcast to the eager world
 536                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 537                         return;
 538                 }
 539
 540                 if ($pcno == 24) {              # set here status
 541                         my $call = uc $field[1];
 542                         my $ref = DXCluster->get_exact($call);
 543                         $ref->here($field[2]) if $ref;
 544                         last SWITCH;
 545                 }
 546
 547                 if ($pcno == 25) {      # merge request
 548                         if ($field[1] ne $main::mycall) {
 549                                 $self->route($field[1], $line);
 550                                 return;
 551                         }
 552                         if ($field[2] eq $main::mycall) {
 553                                 dbg('chan', "Trying to merge to myself, ignored");
 554                                 return;
 555                         }
 556
 557                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 558
 559                         # spots
 560                         if ($field[3] > 0) {
 561                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 562                                 my $in;
 563                                 foreach $in (@in) {
 564                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 565                                 }
 566                         }
 567
 568                         # wwv
 569                         if ($field[4] > 0) {
 570                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 571                                 my $in;
 572                                 foreach $in (@in) {
 573                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 574                                 }
 575                         }
 576                         return;
 577                 }
 578
 579                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 580                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 581                                 DXMsg::process($self, $line);
 582                         } else {
 583                                 $self->route($field[1], $line);
 584                         }
 585                         return;
 586                 }
 587
 588                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 589                         if ($field[1] eq $main::mycall) {
 590                                 my $ref = DXUser->get_current($field[2]);
 591                                 my $cref = DXCluster->get($field[2]);
 592                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 593                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 594                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 595                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 596                                                 my $oldpriv = $self->{priv};
 597                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 598                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 599                                                 $self->{priv} = $oldpriv;
 600                                                 for (@in) {
 601                                                         s/\s*$//og;
 602                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 603                                                         Log('rcmd', 'out', $field[2], $_);
 604                                                 }
 605                                                 delete $self->{remotecmd};
 606                                         } else {
 607                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 608                                         }
 609                                 } else {
 610                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 611                                 }
 612                         } else {
 613                                 my $ref = DXUser->get_current($field[1]);
 614                                 if ($ref && $ref->is_clx) {
 615                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 616                                 } else {
 617                                         $self->route($field[1], $line);
 618                                 }
 619                         }
 620                         return;
 621                 }
 622
 623                 if ($pcno == 35) {              # remote command replies
 624                         if ($field[1] eq $main::mycall) {
 625                                 my $s = $rcmds{$field[2]};
 626                                 if ($s) {
 627                                         my $dxchan = DXChannel->get($s->{call});
 628                                         $dxchan->send($field[3]) if $dxchan;
 629                                         delete $rcmds{$field[2]} if !$dxchan;
 630                                 }
 631                         } else {
 632                                 my $ref = DXUser->get_current($field[1]);
 633                                 if ($ref && $ref->is_clx) {
 634                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 635                                 } else {
 636                                         $self->route($field[1], $line);
 637                                 }
 638                         }
 639                         return;
 640                 }
 641
 642                 # for pc 37 see 44 onwards
 643
 644                 if ($pcno == 38) {              # node connected list from neighbour
 645                         return;
 646                 }
 647
 648                 if ($pcno == 39) {              # incoming disconnect
 649                         $self->disconnect(1);
 650                         return;
 651                 }
 652
 653                 if ($pcno == 41) {              # user info
 654                         # add this station to the user database, if required
 655                         my $user = DXUser->get_current($field[1]);
 656                         if (!$user) {
 657                                 # then try without an SSID
 658                                 $field[1] =~ s/-\d+$//o;
 659                                 $user = DXUser->get_current($field[1]);
 660                         }
 661                         $user = DXUser->new($field[1]) if !$user;
 662
 663                         if ($field[2] == 1) {
 664                                 $user->name($field[3]);
 665                         } elsif ($field[2] == 2) {
 666                                 $user->qth($field[3]);
 667                         } elsif ($field[2] == 3) {
 668                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 669                                 $user->lat($lat);
 670                                 $user->long($long);
 671                                 my $qra = $user->qra || DXBearing::lltoqra($lat, $long);
 672                                 $qra = DXBearing::lltoqra($lat, $long) unless DXBearing::is_qra($qra);
 673                         } elsif ($field[2] == 4) {
 674                                 $user->homenode($field[3]);
 675                         }
 676                         $user->put;
 677                         last SWITCH;
 678                 }
 679                 if ($pcno == 43) {
 680                         last SWITCH;
 681                 }
 682                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 683                         DXDb::process($self, $line);
 684                         return;
 685                 }
 686
 687                 if ($pcno == 50) {              # keep alive/user list
 688                         my $node = DXCluster->get_exact($field[1]);
 689                         if ($node) {
 690                                 return unless $node->isa('DXNode');
 691                                 return unless $node->dxchan == $self;
 692                                 $node->update_users($field[2]);
 693                         }
 694                         last SWITCH;
 695                 }
 696
 697                 if ($pcno == 51) {              # incoming ping requests/answers
 698
 699                         # is it for us?
 700                         if ($field[1] eq $main::mycall) {
 701                                 my $flag = $field[3];
 702                                 if ($flag == 1) {
 703                                         $self->send(pc51($field[2], $field[1], '0'));
 704                                 } else {
 705                                         # it's a reply, look in the ping list for this one
 706                                         my $ref = $pings{$field[2]};
 707                                         if ($ref) {
 708                                                 my $tochan =  DXChannel->get($field[2]);
 709                                                 while (@$ref) {
 710                                                         my $r = shift @$ref;
 711                                                         my $dxchan = DXChannel->get($r->{call});
 712                                                         next unless $dxchan;
 713                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 714                                                         if ($dxchan->is_user) {
 715                                                                 my $s = sprintf "%.2f", $t;
 716                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 717                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 718                                                         } elsif ($dxchan->is_node) {
 719                                                                 if ($tochan) {
 720                                                                         $tochan->{nopings} = 2; # pump up the timer
 721                                                                         push @{$tochan->{pingtime}}, $t;
 722                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 723                                                                         my $st;
 724                                                                         for (@{$tochan->{pingtime}}) {
 725                                                                                 $st += $_;
 726                                                                         }
 727                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 728                                                                 }
 729                                                         }
 730                                                 }
 731                                         }
 732                                 }
 733                         } else {
 734                                 # route down an appropriate thingy
 735                                 $self->route($field[1], $line);
 736                         }
 737                         return;
 738                 }
 739
 740                 if ($pcno == 73) {  # WCY broadcasts
 741
 742                         # do some de-duping
 743                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 744                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 745                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 746                                 return;
 747                         }
 748                         @field = map { unpad($_) } @field;
 749                         if (WCY::dup($d,@field[3..7])) {
 750                                 dbg('chan', "Dup WCY Spot ignored\n");
 751                                 return;
 752                         }
 753
 754                         my $wcy = WCY::update($d, @field[2..12]);
 755
 756                         my $rep;
 757                         eval {
 758                                 $rep = Local::wwv($self, @field[1..12]);
 759                         };
 760                         # dbg('local', "Local::wcy error $@") if $@;
 761                         return if $rep;
 762
 763                         # broadcast to the eager world
 764                         send_wcy_spot($self, $line, $d, @field[2..12]);
 765                         return;
 766                 }
 767
 768                 if ($pcno == 84) { # remote commands (incoming)
 769                         if ($field[1] eq $main::mycall) {
 770                                 my $ref = DXUser->get_current($field[2]);
 771                                 my $cref = DXCluster->get($field[2]);
 772                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 773                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 774                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 775                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 776                                                 my $oldpriv = $self->{priv};
 777                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 778                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 779                                                 $self->{priv} = $oldpriv;
 780                                                 for (@in) {
 781                                                         s/\s*$//og;
 782                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 783                                                         Log('rcmd', 'out', $field[2], $_);
 784                                                 }
 785                                                 delete $self->{remotecmd};
 786                                         } else {
 787                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 788                                         }
 789                                 } else {
 790                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 791                                 }
 792                         } else {
 793                                 my $ref = DXUser->get_current($field[1]);
 794                                 if ($ref && $ref->is_clx) {
 795                                         $self->route($field[1], $line);
 796                                 } else {
 797                                         route($field[1], pc34($field[2], $field[1], $field[3]));
 798                                 }
 799                         }
 800                         return;
 801                 }
 802
 803                 if ($pcno == 85) {              # remote command replies
 804                         if ($field[1] eq $main::mycall) {
 805                                 my $dxchan = DXChannel->get($field[3]);
 806                                 if ($dxchan) {
 807                                         $dxchan->send($field[4]);
 808                                 } else {
 809                                         my $s = $rcmds{$field[2]};
 810                                         if ($s) {
 811                                                 $dxchan = DXChannel->get($s->{call});
 812                                                 $dxchan->send($field[4]) if $dxchan;
 813                                                 delete $rcmds{$field[2]} if !$dxchan;
 814                                         }
 815                                 }
 816                         } else {
 817                                 my $ref = DXUser->get_current($field[1]);
 818                                 if ($ref && $ref->is_clx) {
 819                                         $self->route($field[1], $line);
 820                                 } else {
 821                                         route($field[1], pc35($field[2], $field[1], $field[3]));
 822                                 }
 823                         }
 824                         return;
 825                 }
 826         }
 827
 828         # if get here then rebroadcast the thing with its Hop count decremented (if
 829         # there is one). If it has a hop count and it decrements to zero then don't
 830         # rebroadcast it.
 831         #
 832         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 833         #        REBROADCAST!!!!
 834         #
 835
 836         unless ($self->{isolate}) {
 837                 broadcast_ak1a($line, $self); # send it to everyone but me
 838         }
 839 }
 840
 841 #
 842 # This is called from inside the main cluster processing loop and is used
 843 # for despatching commands that are doing some long processing job
 844 #
 845 sub process
 846 {
 847         my $t = time;
 848         my @dxchan = DXChannel->get_all();
 849         my $dxchan;
 850
 851         foreach $dxchan (@dxchan) {
 852                 next unless $dxchan->is_node();
 853                 next if $dxchan == $me;
 854
 855                 # send a pc50 out on this channel
 856                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 857                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 858                         $dxchan->pc50_t($t);
 859                 }
 860
 861                 # send a ping out on this channel
 862                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 863                         if ($dxchan->{nopings} <= 0) {
 864                                 $dxchan->disconnect;
 865                         } else {
 866                                 addping($main::mycall, $dxchan->call);
 867                                 $dxchan->{nopings} -= 1;
 868                                 $dxchan->{lastping} = $t;
 869                         }
 870                 }
 871         }
 872
 873         my $key;
 874         my $val;
 875         my $cutoff;
 876         if ($main::systime - 3600 > $last_hour) {
 877                 Spot::process;
 878                 Geomag::process;
 879                 AnnTalk::process;
 880                 $last_hour = $main::systime;
 881         }
 882 }
 883
 884 #
 885 # finish up a pc context
 886 #
 887 sub finish
 888 {
 889         my $self = shift;
 890         my $call = $self->call;
 891         my $conn = shift;
 892         my $ref = DXCluster->get_exact($call);
 893
 894         # unbusy and stop and outgoing mail
 895         my $mref = DXMsg::get_busy($call);
 896         $mref->stop_msg($call) if $mref;
 897
 898         # broadcast to all other nodes that all the nodes connected to via me are gone
 899         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 900         my $node;
 901
 902         foreach $node (@gonenodes) {
 903                 next if $node->call eq $call;
 904                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 905                 $node->del();
 906         }
 907
 908         # remove outstanding pings
 909         delete $pings{$call};
 910
 911         # now broadcast to all other ak1a nodes that I have gone
 912         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 913
 914         # I was the last node visited
 915     $self->user->node($main::mycall);
 916
 917         # send info to all logged in thingies
 918         $self->tell_login('logoutn');
 919
 920         Log('DXProt', $call . " Disconnected");
 921         $ref->del() if $ref;
 922 }
 923
 924 #
 925 # some active measures
 926 #
 927 sub send_dx_spot
 928 {
 929         my $self = shift;
 930         my $line = shift;
 931         my @dxchan = DXChannel->get_all();
 932         my $dxchan;
 933
 934         # send it if it isn't the except list and isn't isolated and still has a hop count
 935         # taking into account filtering and so on
 936         foreach $dxchan (@dxchan) {
 937                 my $routeit;
 938                 my ($filter, $hops);
 939
 940                 if ($dxchan->{spotfilter}) {
 941                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 942                         next unless $filter;
 943                 }
 944
 945                 if ($dxchan->is_node) {
 946                         next if $dxchan == $self;
 947                         if ($hops) {
 948                                 $routeit = $line;
 949                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 950                         } else {
 951                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 952                                 next unless $routeit;
 953                         }
 954                         if ($filter) {
 955                                 $dxchan->send($routeit) if $routeit;
 956                         } else {
 957                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 958                         }
 959                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 960                         my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
 961                         $buf .= "\a\a" if $dxchan->{beep};
 962                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 963                                 $dxchan->send($buf);
 964                         } else {
 965                                 $dxchan->delay($buf);
 966                         }
 967                 }
 968         }
 969 }
 970
 971 sub send_wwv_spot
 972 {
 973         my $self = shift;
 974         my $line = shift;
 975         my @dxchan = DXChannel->get_all();
 976         my $dxchan;
 977
 978         # send it if it isn't the except list and isn't isolated and still has a hop count
 979         # taking into account filtering and so on
 980         foreach $dxchan (@dxchan) {
 981                 my $routeit;
 982                 my ($filter, $hops);
 983
 984                 if ($dxchan->{wwvfilter}) {
 985                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
 986                          next unless $filter;
 987                 }
 988                 if ($dxchan->is_node) {
 989                         next if $dxchan == $self;
 990                         if ($hops) {
 991                                 $routeit = $line;
 992                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 993                         } else {
 994                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 995                                 next unless $routeit;
 996                         }
 997                         if ($filter) {
 998                                 $dxchan->send($routeit) if $routeit;
 999                         } else {
1000                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1001
1002                         }
1003                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1004                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1005                         $buf .= "\a\a" if $dxchan->{beep};
1006                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1007                                 $dxchan->send($buf);
1008                         } else {
1009                                 $dxchan->delay($buf);
1010                         }
1011                 }
1012         }
1013 }
1014
1015 sub send_wcy_spot
1016 {
1017         my $self = shift;
1018         my $line = shift;
1019         my @dxchan = DXChannel->get_all();
1020         my $dxchan;
1021
1022         # send it if it isn't the except list and isn't isolated and still has a hop count
1023         # taking into account filtering and so on
1024         foreach $dxchan (@dxchan) {
1025                 my $routeit;
1026                 my ($filter, $hops);
1027
1028                 if ($dxchan->{wcyfilter}) {
1029                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1030                          next unless $filter;
1031                 }
1032                 if ($dxchan->is_clx || $dxchan->is_spider) {
1033                         next if $dxchan == $self;
1034                         if ($hops) {
1035                                 $routeit = $line;
1036                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1037                         } else {
1038                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1039                                 next unless $routeit;
1040                         }
1041                         if ($filter) {
1042                                 $dxchan->send($routeit) if $routeit;
1043                         } else {
1044                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1045                         }
1046                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1047                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1048                         $buf .= "\a\a" if $dxchan->{beep};
1049                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1050                                 $dxchan->send($buf);
1051                         } else {
1052                                 $dxchan->delay($buf);
1053                         }
1054                 }
1055         }
1056 }
1057
1058 # send an announce
1059 sub send_announce
1060 {
1061         my $self = shift;
1062         my $line = shift;
1063         my @dxchan = DXChannel->get_all();
1064         my $dxchan;
1065         my $text = unpad($_[2]);
1066         my $target;
1067         my $to = 'To ';
1068
1069         if ($_[3] eq '*') {     # sysops
1070                 $target = "SYSOP";
1071         } elsif ($_[3] gt ' ') { # speciality list handling
1072                 my ($name) = split /\./, $_[3];
1073                 $target = "$name"; # put the rest in later (if bothered)
1074         }
1075
1076         if ($_[5] eq '1') {
1077                 $target = "WX";
1078                 $to = '';
1079         }
1080         $target = "All" if !$target;
1081
1082         Log('ann', $target, $_[0], $text);
1083
1084         # send it if it isn't the except list and isn't isolated and still has a hop count
1085         # taking into account filtering and so on
1086         foreach $dxchan (@dxchan) {
1087                 my $routeit;
1088                 my ($filter, $hops);
1089
1090                 if ($dxchan->{annfilter}) {
1091                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1092                         next unless $filter;
1093                 }
1094                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1095                         next if $dxchan == $self;
1096                         if ($hops) {
1097                                 $routeit = $line;
1098                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1099                         } else {
1100                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1101                                 next unless $routeit;
1102                         }
1103                         if ($filter) {
1104                                 $dxchan->send($routeit) if $routeit;
1105                         } else {
1106                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1107
1108                         }
1109                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1110                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1111                         my $buf = "$to$target de $_[0]: $text";
1112                         $buf .= "\a\a" if $dxchan->{beep};
1113                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1114                                 $dxchan->send($buf);
1115                         } else {
1116                                 $dxchan->delay($buf);
1117                         }
1118                 }
1119         }
1120 }
1121
1122 sub send_local_config
1123 {
1124         my $self = shift;
1125         my $n;
1126         my @nodes;
1127         my @localnodes;
1128         my @remotenodes;
1129
1130         # send our nodes
1131         if ($self->{isolate}) {
1132                 @localnodes = (DXCluster->get_exact($main::mycall));
1133         } else {
1134                 # create a list of all the nodes that are not connected to this connection
1135                 # and are not themselves isolated, this to make sure that isolated nodes
1136         # don't appear outside of this node
1137                 @nodes = DXNode::get_all();
1138                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1139                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1140                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1141                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1142                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1143                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1144         }
1145
1146         my @s = $me->pc19(@localnodes, @remotenodes);
1147         for (@s) {
1148                 my $routeit = adjust_hops($self, $_);
1149                 $self->send($routeit) if $routeit;
1150         }
1151
1152         # get all the users connected on the above nodes and send them out
1153         foreach $n (@localnodes, @remotenodes) {
1154                 my @users = values %{$n->list};
1155                 my @s = pc16($n, @users);
1156                 for (@s) {
1157                         my $routeit = adjust_hops($self, $_);
1158                         $self->send($routeit) if $routeit;
1159                 }
1160         }
1161 }
1162
1163 #
1164 # route a message down an appropriate interface for a callsign
1165 #
1166 # is called route(to, pcline);
1167 #
1168 sub route
1169 {
1170         my ($self, $call, $line) = @_;
1171         my $cl = DXCluster->get_exact($call);
1172         if ($cl) {       # don't route it back down itself
1173                 if (ref $self && $call eq $self->{call}) {
1174                         dbg('chan', "Trying to route back to source, dropped");
1175                         return;
1176                 }
1177                 my $hops;
1178                 my $dxchan = $cl->{dxchan};
1179                 if ($dxchan) {
1180                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1181                         if ($routeit) {
1182                                 $dxchan->send($routeit) if $dxchan;
1183                         }
1184                 }
1185         }
1186 }
1187
1188 # broadcast a message to all clusters taking into account isolation
1189 # [except those mentioned after buffer]
1190 sub broadcast_ak1a
1191 {
1192         my $s = shift;                          # the line to be rebroadcast
1193         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1194         my @dxchan = DXChannel::get_all_ak1a();
1195         my $dxchan;
1196
1197         # send it if it isn't the except list and isn't isolated and still has a hop count
1198         foreach $dxchan (@dxchan) {
1199                 next if grep $dxchan == $_, @except;
1200                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1201                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1202         }
1203 }
1204
1205 # broadcast a message to all clusters ignoring isolation
1206 # [except those mentioned after buffer]
1207 sub broadcast_all_ak1a
1208 {
1209         my $s = shift;                          # the line to be rebroadcast
1210         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1211         my @dxchan = DXChannel::get_all_ak1a();
1212         my $dxchan;
1213
1214         # send it if it isn't the except list and isn't isolated and still has a hop count
1215         foreach $dxchan (@dxchan) {
1216                 next if grep $dxchan == $_, @except;
1217                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1218                 $dxchan->send($routeit);
1219         }
1220 }
1221
1222 # broadcast to all users
1223 # storing the spot or whatever until it is in a state to receive it
1224 sub broadcast_users
1225 {
1226         my $s = shift;                          # the line to be rebroadcast
1227         my $sort = shift;           # the type of transmission
1228         my $fref = shift;           # a reference to an object to filter on
1229         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1230         my @dxchan = DXChannel::get_all_users();
1231         my $dxchan;
1232         my @out;
1233
1234         foreach $dxchan (@dxchan) {
1235                 next if grep $dxchan == $_, @except;
1236                 push @out, $dxchan;
1237         }
1238         broadcast_list($s, $sort, $fref, @out);
1239 }
1240
1241 # broadcast to a list of users
1242 sub broadcast_list
1243 {
1244         my $s = shift;
1245         my $sort = shift;
1246         my $fref = shift;
1247         my $dxchan;
1248
1249         foreach $dxchan (@_) {
1250                 my $filter = 1;
1251
1252                 if ($sort eq 'dx') {
1253                     next unless $dxchan->{dx};
1254                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1255                         next unless $filter;
1256                 }
1257                 next if $sort eq 'ann' && !$dxchan->{ann};
1258                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1259                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1260                 next if $sort eq 'wx' && !$dxchan->{wx};
1261
1262                 $s =~ s/\a//og unless $dxchan->{beep};
1263
1264                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1265                         $dxchan->send($s);
1266                 } else {
1267                         $dxchan->delay($s);
1268                 }
1269         }
1270 }
1271
1272
1273 #
1274 # obtain the hops from the list for this callsign and pc no
1275 #
1276
1277 sub get_hops
1278 {
1279         my $pcno = shift;
1280         my $hops = $DXProt::hopcount{$pcno};
1281         $hops = $DXProt::def_hopcount if !$hops;
1282         return "H$hops";
1283 }
1284
1285 #
1286 # adjust the hop count on a per node basis using the user loadable
1287 # hop table if available or else decrement an existing one
1288 #
1289
1290 sub adjust_hops
1291 {
1292         my $self = shift;
1293         my $s = shift;
1294         my $call = $self->{call};
1295         my $hops;
1296
1297         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1298                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1299                 confess "$call called adjust_hops with '$s'" unless $pcno;
1300                 my $ref = $nodehops{$call} if %nodehops;
1301                 if ($ref) {
1302                         my $newhops = $ref->{$pcno};
1303                         return "" if defined $newhops && $newhops == 0;
1304                         $newhops = $ref->{default} unless $newhops;
1305                         return "" if defined $newhops && $newhops == 0;
1306                         $newhops = $hops if !$newhops;
1307                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1308                 } else {
1309                         # simply decrement it
1310                         $hops--;
1311                         return "" if !$hops;
1312                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1313                 }
1314         }
1315         return $s;
1316 }
1317
1318 #
1319 # load hop tables
1320 #
1321 sub load_hops
1322 {
1323         my $self = shift;
1324         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1325         do "$main::data/hop_table.pl";
1326         return $@ if $@;
1327         return 0;
1328 }
1329
1330
1331 # add a ping request to the ping queues
1332 sub addping
1333 {
1334         my ($from, $to) = @_;
1335         my $ref = $pings{$to} || [];
1336         my $r = {};
1337         $r->{call} = $from;
1338         $r->{t} = [ gettimeofday ];
1339         route(undef, $to, pc51($to, $main::mycall, 1));
1340         push @$ref, $r;
1341         $pings{$to} = $ref;
1342 }
1343
1344 # add a rcmd request to the rcmd queues
1345 sub addrcmd
1346 {
1347         my ($self, $to, $cmd) = @_;
1348
1349         my $r = {};
1350         $r->{call} = $self->{call};
1351         $r->{t} = $main::systime;
1352         $r->{cmd} = $cmd;
1353         $rcmds{$to} = $r;
1354
1355         my $ref = DXCluster->get_exact($to);
1356     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1357                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1358         } else {
1359                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1360         }
1361 }
1362
1363 sub disconnect
1364 {
1365         my $self = shift;
1366         my $nopc39 = shift;
1367
1368         if ($self->{conn} && !$nopc39) {
1369                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1370         }
1371
1372         $self->SUPER::disconnect;
1373 }
1374 1;
1375 __END__