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 = $user->qra;
 250                                 unless ($qra && DXBearing::is_qra($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                                                 $user->put;
 256                                         }
 257                                 }
 258
 259                                 # send a remote command to a distant cluster if it is visible and there is no
 260                                 # qra locator and we havn't done it for a month.
 261
 262                                 unless ($user->qra) {
 263                                         my $node;
 264                                         my $to = $user->homenode;
 265                                         my $last = $user->lastoper || 0;
 266                                         if ($main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 267                                                 my $cmd = "forward/opernam $spot[4]";
 268                                                 # send the rcmd but we aren't interested in the replies...
 269                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 270                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 271                                                 } else {
 272                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 273                                                 }
 274                                                 $user->lastoper($main::systime);
 275                                                 $user->put;
 276                                         }
 277                                 }
 278                         }
 279
 280                         # local processing
 281                         my $r;
 282                         eval {
 283                                 $r = Local::spot($self, @spot);
 284                         };
 285 #                       dbg('local', "Local::spot1 error $@") if $@;
 286                         return if $r;
 287
 288                         # DON'T be silly and send on PC26s!
 289                         return if $pcno == 26;
 290
 291                         # send out the filtered spots
 292                         send_dx_spot($self, $line, @spot) if @spot;
 293                         return;
 294                 }
 295
 296                 if ($pcno == 12) {              # announces
 297                         # announce duplicate checking
 298                         $field[3] =~ s/^\s+//;  # remove leading blanks
 299                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 300                                 dbg('chan', "Duplicate Announce ignored\n");
 301                                 return;
 302                         }
 303
 304                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 305
 306                                 # global ann filtering on INPUT
 307                                 if ($self->{inannfilter}) {
 308                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 309                                         unless ($filter) {
 310                                                 dbg('chan', "Rejected by filter");
 311                                                 return;
 312                                         }
 313                                 }
 314
 315                                 # send it
 316                                 $self->send_announce($line, @field[1..6]);
 317                         } else {
 318                                 $self->route($field[2], $line);
 319                         }
 320
 321                         return;
 322                 }
 323
 324                 if ($pcno == 13) {
 325                         last SWITCH;
 326                 }
 327                 if ($pcno == 14) {
 328                         last SWITCH;
 329                 }
 330                 if ($pcno == 15) {
 331                         last SWITCH;
 332                 }
 333
 334                 if ($pcno == 16) {              # add a user
 335                         my $node = DXCluster->get_exact($field[1]);
 336                         my $dxchan;
 337                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 338                                 # add it to the node table if it isn't present and it's
 339                                 # connected locally
 340                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 341                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 342
 343                         }
 344                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 345                         return unless $node->isa('DXNode');
 346                         if ($node->dxchan != $self) {
 347                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 348                                 return;
 349                         }
 350                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 351                                 dbg('chan', "LOOP: $field[1] connected locally");
 352                                 return;
 353                         }
 354                         my $i;
 355
 356                         for ($i = 2; $i < $#field; $i++) {
 357                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 358                                 next if !$call || length $call < 3 || length $call > 8;
 359                                 next if !$confmode;
 360                                 $call = uc $call;
 361                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 362
 363                                 $confmode = $confmode eq '*';
 364                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 365
 366                                 # add this station to the user database, if required
 367                                 $call =~ s/-\d+$//o;        # remove ssid for users
 368                                 my $user = DXUser->get_current($call);
 369                                 $user = DXUser->new($call) if !$user;
 370                                 $user->homenode($node->call) if !$user->homenode;
 371                                 $user->node($node->call);
 372                                 $user->lastin($main::systime) unless DXChannel->get($call);
 373                                 $user->put;
 374                         }
 375
 376                         # queue up any messages (look for privates only)
 377                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 378                         last SWITCH;
 379                 }
 380
 381                 if ($pcno == 17) {              # remove a user
 382                         my $node = DXCluster->get_exact($field[2]);
 383                         my $dxchan;
 384                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 385                                 # add it to the node table if it isn't present and it's
 386                                 # connected locally
 387                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 388                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 389                                 return;
 390                         }
 391                         return unless $node;
 392                         return unless $node->isa('DXNode');
 393                         if ($node->dxchan != $self) {
 394                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 395                                 return;
 396                         }
 397                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 398                                 dbg('chan', "LOOP: $field[2] connected locally");
 399                                 return;
 400                         }
 401                         my $ref = DXCluster->get_exact($field[1]);
 402                         $ref->del() if $ref;
 403                         last SWITCH;
 404                 }
 405
 406                 if ($pcno == 18) {              # link request
 407                         $self->state('init');
 408
 409                         # first clear out any nodes on this dxchannel
 410                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 411                         foreach my $node (@gonenodes) {
 412                                 next if $node->dxchan == $DXProt::me;
 413                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 414                                 $node->del();
 415                         }
 416                         $self->send_local_config();
 417                         $self->send(pc20());
 418                         return;             # we don't pass these on
 419                 }
 420
 421                 if ($pcno == 19) {              # incoming cluster list
 422                         my $i;
 423                         my $newline = "PC19^";
 424                         for ($i = 1; $i < $#field-1; $i += 4) {
 425                                 my $here = $field[$i];
 426                                 my $call = uc $field[$i+1];
 427                                 my $confmode = $field[$i+2];
 428                                 my $ver = $field[$i+3];
 429
 430                                 $ver = 5400 if !$ver && $allowzero;
 431
 432                                 # now check the call over
 433                                 my $node = DXCluster->get_exact($call);
 434                                 if ($node) {
 435                                         my $dxchan;
 436                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 437                                                 dbg('chan', "LOOP: $call connected locally");
 438                                         }
 439                                     if ($node->dxchan != $self) {
 440                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 441                                                 next;
 442                                         }
 443                                         dbg('chan', "already have $call");
 444                                         next;
 445                                 }
 446
 447                                 # check for sane parameters
 448                                 next if $ver < 5000; # only works with version 5 software
 449                                 next if length $call < 3; # min 3 letter callsigns
 450
 451                                 # add it to the nodes table and outgoing line
 452                                 $newline .= "$here^$call^$confmode^$ver^";
 453                                 DXNode->new($self, $call, $confmode, $here, $ver);
 454
 455                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 456                                 my $mref = DXMsg::get_busy($call);
 457                                 $mref->stop_msg($call) if $mref;
 458
 459                                 # add this station to the user database, if required (don't remove SSID from nodes)
 460                                 my $user = DXUser->get_current($call);
 461                                 if (!$user) {
 462                                         $user = DXUser->new($call);
 463                                         $user->sort('A');
 464                                         $user->priv(1);                   # I have relented and defaulted nodes
 465                                         $self->{priv} = 1;                # to user RCMDs allowed
 466                                         $user->homenode($call);
 467                                         $user->node($call);
 468                                 }
 469                                 $user->lastin($main::systime) unless DXChannel->get($call);
 470                                 $user->put;
 471                         }
 472
 473                         return if $newline eq "PC19^";
 474
 475                         # add hop count
 476                         $newline .=  get_hops(19) . "^";
 477                         $line = $newline;
 478                         last SWITCH;
 479                 }
 480
 481                 if ($pcno == 20) {              # send local configuration
 482                         $self->send_local_config();
 483                         $self->send(pc22());
 484                         $self->state('normal');
 485                         return;
 486                 }
 487
 488                 if ($pcno == 21) {              # delete a cluster from the list
 489                         my $call = uc $field[1];
 490                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 491                                 my $node = DXCluster->get_exact($call);
 492                                 if ($node) {
 493                                         if ($node->dxchan != $self) {
 494                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 495                                                 return;
 496                                         }
 497                                         my $dxchan;
 498                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 499                                                 dbg('chan', "LOOP: $call connected locally");
 500                                                 return;
 501                                         }
 502                                         $node->del();
 503                                 } else {
 504                                         dbg('chan', "$call not in table, dropped");
 505                                         return;
 506                                 }
 507                         }
 508                         last SWITCH;
 509                 }
 510
 511                 if ($pcno == 22) {
 512                         $self->state('normal');
 513                         return;
 514                 }
 515
 516                 if ($pcno == 23 || $pcno == 27) { # WWV info
 517
 518                         # route 'foreign' pc27s
 519                         if ($pcno == 27) {
 520                                 if ($field[8] ne $main::mycall) {
 521                                         $self->route($field[8], $line);
 522                                         return;
 523                                 }
 524                         }
 525
 526                         # do some de-duping
 527                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 528                         my $sfi = unpad($field[3]);
 529                         my $k = unpad($field[4]);
 530                         my $i = unpad($field[5]);
 531                         my ($r) = $field[6] =~ /R=(\d+)/;
 532                         $r = 0 unless $r;
 533                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 534                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 535                                 return;
 536                         }
 537                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 538                                 dbg('chan', "Dup WWV Spot ignored\n");
 539                                 return;
 540                         }
 541                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 542
 543                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 544
 545                         my $rep;
 546                         eval {
 547                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 548                         };
 549 #                       dbg('local', "Local::wwv2 error $@") if $@;
 550                         return if $rep;
 551
 552                         # DON'T be silly and send on PC27s!
 553                         return if $pcno == 27;
 554
 555                         # broadcast to the eager world
 556                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 557                         return;
 558                 }
 559
 560                 if ($pcno == 24) {              # set here status
 561                         my $call = uc $field[1];
 562                         my $ref = DXCluster->get_exact($call);
 563                         $ref->here($field[2]) if $ref;
 564                         last SWITCH;
 565                 }
 566
 567                 if ($pcno == 25) {      # merge request
 568                         if ($field[1] ne $main::mycall) {
 569                                 $self->route($field[1], $line);
 570                                 return;
 571                         }
 572                         if ($field[2] eq $main::mycall) {
 573                                 dbg('chan', "Trying to merge to myself, ignored");
 574                                 return;
 575                         }
 576
 577                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 578
 579                         # spots
 580                         if ($field[3] > 0) {
 581                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 582                                 my $in;
 583                                 foreach $in (@in) {
 584                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 585                                 }
 586                         }
 587
 588                         # wwv
 589                         if ($field[4] > 0) {
 590                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 591                                 my $in;
 592                                 foreach $in (@in) {
 593                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 594                                 }
 595                         }
 596                         return;
 597                 }
 598
 599                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 600                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 601                                 DXMsg::process($self, $line);
 602                         } else {
 603                                 $self->route($field[1], $line);
 604                         }
 605                         return;
 606                 }
 607
 608                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 609                         if ($field[1] eq $main::mycall) {
 610                                 my $ref = DXUser->get_current($field[2]);
 611                                 my $cref = DXCluster->get($field[2]);
 612                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 613                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 614                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 615                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 616                                                 my $oldpriv = $self->{priv};
 617                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 618                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 619                                                 $self->{priv} = $oldpriv;
 620                                                 for (@in) {
 621                                                         s/\s*$//og;
 622                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 623                                                         Log('rcmd', 'out', $field[2], $_);
 624                                                 }
 625                                                 delete $self->{remotecmd};
 626                                         } else {
 627                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 628                                         }
 629                                 } else {
 630                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 631                                 }
 632                         } else {
 633                                 my $ref = DXUser->get_current($field[1]);
 634                                 if ($ref && $ref->is_clx) {
 635                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 636                                 } else {
 637                                         $self->route($field[1], $line);
 638                                 }
 639                         }
 640                         return;
 641                 }
 642
 643                 if ($pcno == 35) {              # remote command replies
 644                         if ($field[1] eq $main::mycall) {
 645                                 my $s = $rcmds{$field[2]};
 646                                 if ($s) {
 647                                         my $dxchan = DXChannel->get($s->{call});
 648                                         $dxchan->send($field[3]) if $dxchan;
 649                                         delete $rcmds{$field[2]} if !$dxchan;
 650                                 }
 651                         } else {
 652                                 my $ref = DXUser->get_current($field[1]);
 653                                 if ($ref && $ref->is_clx) {
 654                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 655                                 } else {
 656                                         $self->route($field[1], $line);
 657                                 }
 658                         }
 659                         return;
 660                 }
 661
 662                 # for pc 37 see 44 onwards
 663
 664                 if ($pcno == 38) {              # node connected list from neighbour
 665                         return;
 666                 }
 667
 668                 if ($pcno == 39) {              # incoming disconnect
 669                         $self->disconnect(1);
 670                         return;
 671                 }
 672
 673                 if ($pcno == 41) {              # user info
 674                         # add this station to the user database, if required
 675                         my $user = DXUser->get_current($field[1]);
 676                         if (!$user) {
 677                                 # then try without an SSID
 678                                 $field[1] =~ s/-\d+$//o;
 679                                 $user = DXUser->get_current($field[1]);
 680                         }
 681                         $user = DXUser->new($field[1]) if !$user;
 682
 683                         if ($field[2] == 1) {
 684                                 $user->name($field[3]);
 685                         } elsif ($field[2] == 2) {
 686                                 $user->qth($field[3]);
 687                         } elsif ($field[2] == 3) {
 688                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 689                                 $user->lat($lat);
 690                                 $user->long($long);
 691                                 my $qra = $user->qra || DXBearing::lltoqra($lat, $long);
 692                                 $qra = DXBearing::lltoqra($lat, $long) unless $qra && DXBearing::is_qra($qra);
 693                                 $user->qra($qra) if $qra ne $user->qra;
 694                         } elsif ($field[2] == 4) {
 695                                 $user->homenode($field[3]);
 696                         }
 697                         $user->put;
 698                         last SWITCH;
 699                 }
 700                 if ($pcno == 43) {
 701                         last SWITCH;
 702                 }
 703                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 704                         DXDb::process($self, $line);
 705                         return;
 706                 }
 707
 708                 if ($pcno == 50) {              # keep alive/user list
 709                         my $node = DXCluster->get_exact($field[1]);
 710                         if ($node) {
 711                                 return unless $node->isa('DXNode');
 712                                 return unless $node->dxchan == $self;
 713                                 $node->update_users($field[2]);
 714                         }
 715                         last SWITCH;
 716                 }
 717
 718                 if ($pcno == 51) {              # incoming ping requests/answers
 719
 720                         # is it for us?
 721                         if ($field[1] eq $main::mycall) {
 722                                 my $flag = $field[3];
 723                                 if ($flag == 1) {
 724                                         $self->send(pc51($field[2], $field[1], '0'));
 725                                 } else {
 726                                         # it's a reply, look in the ping list for this one
 727                                         my $ref = $pings{$field[2]};
 728                                         if ($ref) {
 729                                                 my $tochan =  DXChannel->get($field[2]);
 730                                                 while (@$ref) {
 731                                                         my $r = shift @$ref;
 732                                                         my $dxchan = DXChannel->get($r->{call});
 733                                                         next unless $dxchan;
 734                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 735                                                         if ($dxchan->is_user) {
 736                                                                 my $s = sprintf "%.2f", $t;
 737                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 738                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 739                                                         } elsif ($dxchan->is_node) {
 740                                                                 if ($tochan) {
 741                                                                         $tochan->{nopings} = 2; # pump up the timer
 742                                                                         push @{$tochan->{pingtime}}, $t;
 743                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 744                                                                         my $st;
 745                                                                         for (@{$tochan->{pingtime}}) {
 746                                                                                 $st += $_;
 747                                                                         }
 748                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 749                                                                 }
 750                                                         }
 751                                                 }
 752                                         }
 753                                 }
 754                         } else {
 755                                 # route down an appropriate thingy
 756                                 $self->route($field[1], $line);
 757                         }
 758                         return;
 759                 }
 760
 761                 if ($pcno == 73) {  # WCY broadcasts
 762
 763                         # do some de-duping
 764                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 765                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 766                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 767                                 return;
 768                         }
 769                         @field = map { unpad($_) } @field;
 770                         if (WCY::dup($d,@field[3..7])) {
 771                                 dbg('chan', "Dup WCY Spot ignored\n");
 772                                 return;
 773                         }
 774
 775                         my $wcy = WCY::update($d, @field[2..12]);
 776
 777                         my $rep;
 778                         eval {
 779                                 $rep = Local::wwv($self, @field[1..12]);
 780                         };
 781                         # dbg('local', "Local::wcy error $@") if $@;
 782                         return if $rep;
 783
 784                         # broadcast to the eager world
 785                         send_wcy_spot($self, $line, $d, @field[2..12]);
 786                         return;
 787                 }
 788
 789                 if ($pcno == 84) { # remote commands (incoming)
 790                         if ($field[1] eq $main::mycall) {
 791                                 my $ref = DXUser->get_current($field[2]);
 792                                 my $cref = DXCluster->get($field[2]);
 793                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 794                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 795                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 796                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 797                                                 my $oldpriv = $self->{priv};
 798                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 799                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 800                                                 $self->{priv} = $oldpriv;
 801                                                 for (@in) {
 802                                                         s/\s*$//og;
 803                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 804                                                         Log('rcmd', 'out', $field[2], $_);
 805                                                 }
 806                                                 delete $self->{remotecmd};
 807                                         } else {
 808                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 809                                         }
 810                                 } else {
 811                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 812                                 }
 813                         } else {
 814                                 my $ref = DXUser->get_current($field[1]);
 815                                 if ($ref && $ref->is_clx) {
 816                                         $self->route($field[1], $line);
 817                                 } else {
 818                                         route($field[1], pc34($field[2], $field[1], $field[3]));
 819                                 }
 820                         }
 821                         return;
 822                 }
 823
 824                 if ($pcno == 85) {              # remote command replies
 825                         if ($field[1] eq $main::mycall) {
 826                                 my $dxchan = DXChannel->get($field[3]);
 827                                 if ($dxchan) {
 828                                         $dxchan->send($field[4]);
 829                                 } else {
 830                                         my $s = $rcmds{$field[2]};
 831                                         if ($s) {
 832                                                 $dxchan = DXChannel->get($s->{call});
 833                                                 $dxchan->send($field[4]) if $dxchan;
 834                                                 delete $rcmds{$field[2]} if !$dxchan;
 835                                         }
 836                                 }
 837                         } else {
 838                                 my $ref = DXUser->get_current($field[1]);
 839                                 if ($ref && $ref->is_clx) {
 840                                         $self->route($field[1], $line);
 841                                 } else {
 842                                         route($field[1], pc35($field[2], $field[1], $field[3]));
 843                                 }
 844                         }
 845                         return;
 846                 }
 847         }
 848
 849         # if get here then rebroadcast the thing with its Hop count decremented (if
 850         # there is one). If it has a hop count and it decrements to zero then don't
 851         # rebroadcast it.
 852         #
 853         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 854         #        REBROADCAST!!!!
 855         #
 856
 857         unless ($self->{isolate}) {
 858                 broadcast_ak1a($line, $self); # send it to everyone but me
 859         }
 860 }
 861
 862 #
 863 # This is called from inside the main cluster processing loop and is used
 864 # for despatching commands that are doing some long processing job
 865 #
 866 sub process
 867 {
 868         my $t = time;
 869         my @dxchan = DXChannel->get_all();
 870         my $dxchan;
 871
 872         foreach $dxchan (@dxchan) {
 873                 next unless $dxchan->is_node();
 874                 next if $dxchan == $me;
 875
 876                 # send a pc50 out on this channel
 877                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 878                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 879                         $dxchan->pc50_t($t);
 880                 }
 881
 882                 # send a ping out on this channel
 883                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 884                         if ($dxchan->{nopings} <= 0) {
 885                                 $dxchan->disconnect;
 886                         } else {
 887                                 addping($main::mycall, $dxchan->call);
 888                                 $dxchan->{nopings} -= 1;
 889                                 $dxchan->{lastping} = $t;
 890                         }
 891                 }
 892         }
 893
 894         my $key;
 895         my $val;
 896         my $cutoff;
 897         if ($main::systime - 3600 > $last_hour) {
 898                 Spot::process;
 899                 Geomag::process;
 900                 AnnTalk::process;
 901                 $last_hour = $main::systime;
 902         }
 903 }
 904
 905 #
 906 # finish up a pc context
 907 #
 908 sub finish
 909 {
 910         my $self = shift;
 911         my $call = $self->call;
 912         my $conn = shift;
 913         my $ref = DXCluster->get_exact($call);
 914
 915         # unbusy and stop and outgoing mail
 916         my $mref = DXMsg::get_busy($call);
 917         $mref->stop_msg($call) if $mref;
 918
 919         # broadcast to all other nodes that all the nodes connected to via me are gone
 920         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 921         my $node;
 922
 923         foreach $node (@gonenodes) {
 924                 next if $node->call eq $call;
 925                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 926                 $node->del();
 927         }
 928
 929         # remove outstanding pings
 930         delete $pings{$call};
 931
 932         # now broadcast to all other ak1a nodes that I have gone
 933         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 934
 935         # I was the last node visited
 936     $self->user->node($main::mycall);
 937
 938         # send info to all logged in thingies
 939         $self->tell_login('logoutn');
 940
 941         Log('DXProt', $call . " Disconnected");
 942         $ref->del() if $ref;
 943 }
 944
 945 #
 946 # some active measures
 947 #
 948 sub send_dx_spot
 949 {
 950         my $self = shift;
 951         my $line = shift;
 952         my @dxchan = DXChannel->get_all();
 953         my $dxchan;
 954
 955         # send it if it isn't the except list and isn't isolated and still has a hop count
 956         # taking into account filtering and so on
 957         foreach $dxchan (@dxchan) {
 958                 my $routeit;
 959                 my ($filter, $hops);
 960
 961                 if ($dxchan->{spotfilter}) {
 962                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 963                         next unless $filter;
 964                 }
 965
 966                 if ($dxchan->is_node) {
 967                         next if $dxchan == $self;
 968                         if ($hops) {
 969                                 $routeit = $line;
 970                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 971                         } else {
 972                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 973                                 next unless $routeit;
 974                         }
 975                         if ($filter) {
 976                                 $dxchan->send($routeit) if $routeit;
 977                         } else {
 978                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 979                         }
 980                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 981                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
 982                         $buf .= "\a\a" if $dxchan->{beep};
 983                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 984                                 $dxchan->send($buf);
 985                         } else {
 986                                 $dxchan->delay($buf);
 987                         }
 988                 }
 989         }
 990 }
 991
 992 sub send_wwv_spot
 993 {
 994         my $self = shift;
 995         my $line = shift;
 996         my @dxchan = DXChannel->get_all();
 997         my $dxchan;
 998
 999         # send it if it isn't the except list and isn't isolated and still has a hop count
1000         # taking into account filtering and so on
1001         foreach $dxchan (@dxchan) {
1002                 my $routeit;
1003                 my ($filter, $hops);
1004
1005                 if ($dxchan->{wwvfilter}) {
1006                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1007                          next unless $filter;
1008                 }
1009                 if ($dxchan->is_node) {
1010                         next if $dxchan == $self;
1011                         if ($hops) {
1012                                 $routeit = $line;
1013                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1014                         } else {
1015                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1016                                 next unless $routeit;
1017                         }
1018                         if ($filter) {
1019                                 $dxchan->send($routeit) if $routeit;
1020                         } else {
1021                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1022
1023                         }
1024                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1025                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1026                         $buf .= "\a\a" if $dxchan->{beep};
1027                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1028                                 $dxchan->send($buf);
1029                         } else {
1030                                 $dxchan->delay($buf);
1031                         }
1032                 }
1033         }
1034 }
1035
1036 sub send_wcy_spot
1037 {
1038         my $self = shift;
1039         my $line = shift;
1040         my @dxchan = DXChannel->get_all();
1041         my $dxchan;
1042
1043         # send it if it isn't the except list and isn't isolated and still has a hop count
1044         # taking into account filtering and so on
1045         foreach $dxchan (@dxchan) {
1046                 my $routeit;
1047                 my ($filter, $hops);
1048
1049                 if ($dxchan->{wcyfilter}) {
1050                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1051                          next unless $filter;
1052                 }
1053                 if ($dxchan->is_clx || $dxchan->is_spider) {
1054                         next if $dxchan == $self;
1055                         if ($hops) {
1056                                 $routeit = $line;
1057                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1058                         } else {
1059                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1060                                 next unless $routeit;
1061                         }
1062                         if ($filter) {
1063                                 $dxchan->send($routeit) if $routeit;
1064                         } else {
1065                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1066                         }
1067                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1068                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1069                         $buf .= "\a\a" if $dxchan->{beep};
1070                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1071                                 $dxchan->send($buf);
1072                         } else {
1073                                 $dxchan->delay($buf);
1074                         }
1075                 }
1076         }
1077 }
1078
1079 # send an announce
1080 sub send_announce
1081 {
1082         my $self = shift;
1083         my $line = shift;
1084         my @dxchan = DXChannel->get_all();
1085         my $dxchan;
1086         my $text = unpad($_[2]);
1087         my $target;
1088         my $to = 'To ';
1089
1090         if ($_[3] eq '*') {     # sysops
1091                 $target = "SYSOP";
1092         } elsif ($_[3] gt ' ') { # speciality list handling
1093                 my ($name) = split /\./, $_[3];
1094                 $target = "$name"; # put the rest in later (if bothered)
1095         }
1096
1097         if ($_[5] eq '1') {
1098                 $target = "WX";
1099                 $to = '';
1100         }
1101         $target = "All" if !$target;
1102
1103         Log('ann', $target, $_[0], $text);
1104
1105         # send it if it isn't the except list and isn't isolated and still has a hop count
1106         # taking into account filtering and so on
1107         foreach $dxchan (@dxchan) {
1108                 my $routeit;
1109                 my ($filter, $hops);
1110
1111                 if ($dxchan->{annfilter}) {
1112                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1113                         next unless $filter;
1114                 }
1115                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1116                         next if $dxchan == $self;
1117                         if ($hops) {
1118                                 $routeit = $line;
1119                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1120                         } else {
1121                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1122                                 next unless $routeit;
1123                         }
1124                         if ($filter) {
1125                                 $dxchan->send($routeit) if $routeit;
1126                         } else {
1127                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1128
1129                         }
1130                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1131                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1132                         my $buf = "$to$target de $_[0]: $text";
1133                         $buf .= "\a\a" if $dxchan->{beep};
1134                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1135                                 $dxchan->send($buf);
1136                         } else {
1137                                 $dxchan->delay($buf);
1138                         }
1139                 }
1140         }
1141 }
1142
1143 sub send_local_config
1144 {
1145         my $self = shift;
1146         my $n;
1147         my @nodes;
1148         my @localnodes;
1149         my @remotenodes;
1150
1151         # send our nodes
1152         if ($self->{isolate}) {
1153                 @localnodes = (DXCluster->get_exact($main::mycall));
1154         } else {
1155                 # create a list of all the nodes that are not connected to this connection
1156                 # and are not themselves isolated, this to make sure that isolated nodes
1157         # don't appear outside of this node
1158                 @nodes = DXNode::get_all();
1159                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1160                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1161                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1162                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1163                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1164                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1165         }
1166
1167         my @s = $me->pc19(@localnodes, @remotenodes);
1168         for (@s) {
1169                 my $routeit = adjust_hops($self, $_);
1170                 $self->send($routeit) if $routeit;
1171         }
1172
1173         # get all the users connected on the above nodes and send them out
1174         foreach $n (@localnodes, @remotenodes) {
1175                 my @users = values %{$n->list};
1176                 my @s = pc16($n, @users);
1177                 for (@s) {
1178                         my $routeit = adjust_hops($self, $_);
1179                         $self->send($routeit) if $routeit;
1180                 }
1181         }
1182 }
1183
1184 #
1185 # route a message down an appropriate interface for a callsign
1186 #
1187 # is called route(to, pcline);
1188 #
1189 sub route
1190 {
1191         my ($self, $call, $line) = @_;
1192         my $cl = DXCluster->get_exact($call);
1193         if ($cl) {       # don't route it back down itself
1194                 if (ref $self && $call eq $self->{call}) {
1195                         dbg('chan', "Trying to route back to source, dropped");
1196                         return;
1197                 }
1198                 my $hops;
1199                 my $dxchan = $cl->{dxchan};
1200                 if ($dxchan) {
1201                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1202                         if ($routeit) {
1203                                 $dxchan->send($routeit) if $dxchan;
1204                         }
1205                 }
1206         }
1207 }
1208
1209 # broadcast a message to all clusters taking into account isolation
1210 # [except those mentioned after buffer]
1211 sub broadcast_ak1a
1212 {
1213         my $s = shift;                          # the line to be rebroadcast
1214         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1215         my @dxchan = DXChannel::get_all_ak1a();
1216         my $dxchan;
1217
1218         # send it if it isn't the except list and isn't isolated and still has a hop count
1219         foreach $dxchan (@dxchan) {
1220                 next if grep $dxchan == $_, @except;
1221                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1222                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1223         }
1224 }
1225
1226 # broadcast a message to all clusters ignoring isolation
1227 # [except those mentioned after buffer]
1228 sub broadcast_all_ak1a
1229 {
1230         my $s = shift;                          # the line to be rebroadcast
1231         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1232         my @dxchan = DXChannel::get_all_ak1a();
1233         my $dxchan;
1234
1235         # send it if it isn't the except list and isn't isolated and still has a hop count
1236         foreach $dxchan (@dxchan) {
1237                 next if grep $dxchan == $_, @except;
1238                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1239                 $dxchan->send($routeit);
1240         }
1241 }
1242
1243 # broadcast to all users
1244 # storing the spot or whatever until it is in a state to receive it
1245 sub broadcast_users
1246 {
1247         my $s = shift;                          # the line to be rebroadcast
1248         my $sort = shift;           # the type of transmission
1249         my $fref = shift;           # a reference to an object to filter on
1250         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1251         my @dxchan = DXChannel::get_all_users();
1252         my $dxchan;
1253         my @out;
1254
1255         foreach $dxchan (@dxchan) {
1256                 next if grep $dxchan == $_, @except;
1257                 push @out, $dxchan;
1258         }
1259         broadcast_list($s, $sort, $fref, @out);
1260 }
1261
1262 # broadcast to a list of users
1263 sub broadcast_list
1264 {
1265         my $s = shift;
1266         my $sort = shift;
1267         my $fref = shift;
1268         my $dxchan;
1269
1270         foreach $dxchan (@_) {
1271                 my $filter = 1;
1272
1273                 if ($sort eq 'dx') {
1274                     next unless $dxchan->{dx};
1275                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1276                         next unless $filter;
1277                 }
1278                 next if $sort eq 'ann' && !$dxchan->{ann};
1279                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1280                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1281                 next if $sort eq 'wx' && !$dxchan->{wx};
1282
1283                 $s =~ s/\a//og unless $dxchan->{beep};
1284
1285                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1286                         $dxchan->send($s);
1287                 } else {
1288                         $dxchan->delay($s);
1289                 }
1290         }
1291 }
1292
1293
1294 #
1295 # obtain the hops from the list for this callsign and pc no
1296 #
1297
1298 sub get_hops
1299 {
1300         my $pcno = shift;
1301         my $hops = $DXProt::hopcount{$pcno};
1302         $hops = $DXProt::def_hopcount if !$hops;
1303         return "H$hops";
1304 }
1305
1306 #
1307 # adjust the hop count on a per node basis using the user loadable
1308 # hop table if available or else decrement an existing one
1309 #
1310
1311 sub adjust_hops
1312 {
1313         my $self = shift;
1314         my $s = shift;
1315         my $call = $self->{call};
1316         my $hops;
1317
1318         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1319                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1320                 confess "$call called adjust_hops with '$s'" unless $pcno;
1321                 my $ref = $nodehops{$call} if %nodehops;
1322                 if ($ref) {
1323                         my $newhops = $ref->{$pcno};
1324                         return "" if defined $newhops && $newhops == 0;
1325                         $newhops = $ref->{default} unless $newhops;
1326                         return "" if defined $newhops && $newhops == 0;
1327                         $newhops = $hops if !$newhops;
1328                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1329                 } else {
1330                         # simply decrement it
1331                         $hops--;
1332                         return "" if !$hops;
1333                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1334                 }
1335         }
1336         return $s;
1337 }
1338
1339 #
1340 # load hop tables
1341 #
1342 sub load_hops
1343 {
1344         my $self = shift;
1345         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1346         do "$main::data/hop_table.pl";
1347         return $@ if $@;
1348         return 0;
1349 }
1350
1351
1352 # add a ping request to the ping queues
1353 sub addping
1354 {
1355         my ($from, $to) = @_;
1356         my $ref = $pings{$to} || [];
1357         my $r = {};
1358         $r->{call} = $from;
1359         $r->{t} = [ gettimeofday ];
1360         route(undef, $to, pc51($to, $main::mycall, 1));
1361         push @$ref, $r;
1362         $pings{$to} = $ref;
1363 }
1364
1365 # add a rcmd request to the rcmd queues
1366 sub addrcmd
1367 {
1368         my ($self, $to, $cmd) = @_;
1369
1370         my $r = {};
1371         $r->{call} = $self->{call};
1372         $r->{t} = $main::systime;
1373         $r->{cmd} = $cmd;
1374         $rcmds{$to} = $r;
1375
1376         my $ref = DXCluster->get_exact($to);
1377     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1378                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1379         } else {
1380                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1381         }
1382 }
1383
1384 sub disconnect
1385 {
1386         my $self = shift;
1387         my $nopc39 = shift;
1388
1389         if ($self->{conn} && !$nopc39) {
1390                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1391         }
1392
1393         $self->SUPER::disconnect;
1394 }
1395 1;
1396 __END__