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 $send_opernam @checklist);
  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 @checklist =
  53 (
  54  [ qw(c c m p bc c) ],                  # pc10
  55  [ qw(f m d t m c c h) ],               # pc11
  56  [ qw(c bc m p c p h) ],                # pc12
  57  [ qw(c h) ],                                   #
  58  [ qw(c h) ],                                   #
  59  [ qw(c m h) ],                                 #
  60  undef ,                                                # pc16 has to be validated manually
  61  [ qw(c c h) ],                                 # pc17
  62  [ qw(m n) ],                                   # pc18
  63  undef ,                                                # pc19 has to be validated manually
  64  undef ,                                                # pc20 no validation
  65  [ qw(c m h) ],                                 # pc21
  66  undef ,                                                # pc22 no validation
  67  [ qw(d t n n n m c c h) ],             # pc23
  68  [ qw(c p h) ],                                 # pc24
  69  [ qw(c c n n) ],                               # pc25
  70  [ qw(f c m d t c c) ],                 # pc26
  71  [ qw(d t n n n m c c) ],               # pc27
  72  [ qw(c c c c d t p m bp n p bp c) ], # pc28
  73  [ qw(c c n m) ],                               # pc29
  74  [ qw(c c n) ],                                 # pc30
  75  [ qw(c c n) ],                                 # pc31
  76  [ qw(c c n) ],                                 # pc32
  77  [ qw(c c n) ],                                 # pc33
  78  [ qw(c c m) ],                                 # pc34
  79  [ qw(c c m) ],                                 # pc35
  80  [ qw(c c m) ],                                 # pc36
  81  [ qw(c c n m) ],                               # pc37
  82  undef,                                                 # pc38 not interested
  83  [ qw(c m) ],                                   # pc39
  84  [ qw(c c m p n) ],                             # pc40
  85  [ qw(c n m h) ],                               # pc41
  86  [ qw(c c n) ],                                 # pc42
  87  undef,                                                 # pc43 don't handle it
  88  [ qw(c c n m m c) ],                   # pc44
  89  [ qw(c c n m) ],                               # pc45
  90  [ qw(c c n) ],                                 # pc46
  91  undef,                                                 # pc47
  92  undef,                                                 # pc48
  93  [ qw(c m h) ],                                 # pc49
  94  [ qw(c n h) ],                                 # pc50
  95  [ qw(c c n) ],                                 # pc51
  96  undef,
  97  undef,
  98  undef,
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,                                                 # pc60
 105  undef,
 106  undef,
 107  undef,
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,                                                 # pc70
 115  undef,
 116  undef,
 117  [ qw(d n n n n n n n m m m c c) ],     # pc73
 118  undef,
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,                                                 # pc80
 125  undef,
 126  undef,
 127  undef,
 128  [ qw(c c c m) ],                               # pc84
 129  [ qw(c c c m) ],                               # pc85
 130 );
 131
 132 # use the entry in the check list to check the field list presented
 133 # return OK if line NOT in check list (for now)
 134 sub check
 135 {
 136         my $n = shift;
 137         $n -= 10;
 138         return 0 if $n < 0 || $n > @checklist;
 139         my $ref = $checklist[$n];
 140         return 0 unless ref $ref;
 141
 142         my $i;
 143         shift;    # not interested in the first field
 144         for ($i = 0; $i < @_; $i++) {
 145                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 146                 next if $blank && $_[$i] eq ' ';
 147                 if ($act eq 'c') {
 148                         return $i+1 unless is_callsign($_[$i]);
 149                 } elsif ($act eq 'm') {
 150                         return $i+1 unless is_pctext($_[$i]);
 151                 } elsif ($act eq 'p') {
 152                         return $i+1 unless is_pcflag($_[$i]);
 153                 } elsif ($act eq 'f') {
 154                         return $i+1 unless is_freq($_[$i]);
 155                 } elsif ($act eq 'n') {
 156                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 157                 } elsif ($act eq 'h') {
 158                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 159                 } elsif ($act eq 'd') {
 160                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 161                 } elsif ($act eq 't') {
 162                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 163                 }
 164         }
 165         return 0;
 166 }
 167
 168 sub init
 169 {
 170         my $user = DXUser->get($main::mycall);
 171         $DXProt::myprot_version += $main::version*100;
 172         $me = DXProt->new($main::mycall, 0, $user);
 173         $me->{here} = 1;
 174         $me->{state} = "indifferent";
 175         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 176         confess $@ if $@;
 177         #  $me->{sort} = 'M';    # M for me
 178
 179         # now prime the spot and wwv  duplicates file with data
 180     my @today = Julian::unixtoj(time);
 181         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
 182                 Spot::dup(@{$_}[0..3]);
 183         }
 184         for (Geomag::readfile(time)) {
 185                 Geomag::dup(@{$_}[1..5]);
 186         }
 187
 188         # load the baddx file
 189         do "$baddxfn" if -e "$baddxfn";
 190         print "$@\n" if $@;
 191 }
 192
 193 #
 194 # obtain a new connection this is derived from dxchannel
 195 #
 196
 197 sub new
 198 {
 199         my $self = DXChannel::alloc(@_);
 200         return $self;
 201 }
 202
 203 # this is how a pc connection starts (for an incoming connection)
 204 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 205 # all the crap that comes between).
 206 sub start
 207 {
 208         my ($self, $line, $sort) = @_;
 209         my $call = $self->{call};
 210         my $user = $self->{user};
 211
 212         # remember type of connection
 213         $self->{consort} = $line;
 214         $self->{outbound} = $sort eq 'O';
 215         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 216         $self->{lang} = $user->lang || 'en';
 217         $self->{isolate} = $user->{isolate};
 218         $self->{consort} = $line;       # save the connection type
 219         $self->{here} = 1;
 220
 221         # get the INPUT filters (these only pertain to Clusters)
 222         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 223         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 224         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 225         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 226
 227         # set unbuffered and no echo
 228         $self->send_now('B',"0");
 229         $self->send_now('E',"0");
 230
 231         # ping neighbour node stuff
 232         my $ping = $user->pingint;
 233         $ping = 5*60 unless defined $ping;
 234         $self->{pingint} = $ping;
 235         $self->{nopings} = $user->nopings || 2;
 236         $self->{pingtime} = [ ];
 237         $self->{pingave} = 0;
 238
 239         # send initialisation string
 240         unless ($self->{outbound}) {
 241                 $self->send(pc38()) if DXNode->get_all();
 242                 $self->send(pc18());
 243                 $self->{lastping} = $main::systime;
 244         } else {
 245                 # remove from outstanding connects queue
 246                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 247                 $self->{lastping} = $main::systime + $self->pingint / 2;
 248         }
 249         $self->state('init');
 250         $self->pc50_t(time);
 251
 252         # send info to all logged in thingies
 253         $self->tell_login('loginn');
 254
 255         Log('DXProt', "$call connected");
 256 }
 257
 258 #
 259 # This is the normal pcxx despatcher
 260 #
 261 sub normal
 262 {
 263         my ($self, $line) = @_;
 264         my @field = split /\^/, $line;
 265         pop @field if $field[-1] eq '~';
 266
 267 #       print join(',', @field), "\n";
 268
 269         # ignore any lines that don't start with PC
 270         return if !$field[0] =~ /^PC/;
 271
 272         # process PC frames
 273         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 274         return unless $pcno;
 275         return if $pcno < 10 || $pcno > 99;
 276
 277         # check for and dump bad protocol messages
 278         my $n = check($pcno, @field);
 279         if ($n) {
 280                 dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 281                 return;
 282         }
 283
 284         # local processing 1
 285         my $pcr;
 286         eval {
 287                 $pcr = Local::pcprot($self, $pcno, @field);
 288         };
 289 #       dbg('local', "Local::pcprot error $@") if $@;
 290         return if $pcr;
 291
 292  SWITCH: {
 293                 if ($pcno == 10) {              # incoming talk
 294
 295                         # is it for me or one of mine?
 296                         my ($to, $via, $call, $dxchan);
 297                         if ($field[5] gt ' ') {
 298                                 $call = $via = $field[2];
 299                                 $to = $field[5];
 300                                 unless (is_callsign($to)) {
 301                                         dbg('chan', "Corrupt talk, rejected");
 302                                         return;
 303                                 }
 304                         } else {
 305                                 $call = $to = $field[2];
 306                         }
 307                         if ($dxchan = DXChannel->get($call)) {
 308                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 309                         } else {
 310                                 $self->route($field[2], $line); # relay it on its way
 311                         }
 312                         return;
 313                 }
 314
 315                 if ($pcno == 11 || $pcno == 26) { # dx spot
 316
 317                         # route 'foreign' pc26s
 318                         if ($pcno == 26) {
 319                                 if ($field[7] ne $main::mycall) {
 320                                         $self->route($field[7], $line);
 321                                         return;
 322                                 }
 323                         }
 324
 325                         # if this is a 'nodx' node then ignore it
 326                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 327                                 dbg('chan', "Bad DXNode, dropped");
 328                                 return;
 329                         }
 330
 331                         # convert the date to a unix date
 332                         my $d = cltounix($field[3], $field[4]);
 333                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 334                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 335                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 336                                 return;
 337                         }
 338
 339                         # is it 'baddx'
 340                         if (grep $field[2] eq $_, @baddx) {
 341                                 dbg('chan', "Bad DX spot, ignored");
 342                                 return;
 343                         }
 344
 345                         # do some de-duping
 346                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 347                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 348                                 dbg('chan', "Duplicate Spot ignored\n");
 349                                 return;
 350                         }
 351
 352                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 353
 354             #
 355                         # @spot at this point contains:-
 356             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 357                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 358                         # you should be able to route on any of these
 359             #
 360
 361                         # fix up qra locators of known users
 362                         my $user = DXUser->get_current($spot[4]);
 363                         if ($user) {
 364                                 my $qra = $user->qra;
 365                                 unless ($qra && DXBearing::is_qra($qra)) {
 366                                         my $lat = $user->lat;
 367                                         my $long = $user->long;
 368                                         if (defined $lat && defined $long) {
 369                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 370                                                 $user->put;
 371                                         }
 372                                 }
 373
 374                                 # send a remote command to a distant cluster if it is visible and there is no
 375                                 # qra locator and we havn't done it for a month.
 376
 377                                 unless ($user->qra) {
 378                                         my $node;
 379                                         my $to = $user->homenode;
 380                                         my $last = $user->lastoper || 0;
 381                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 382                                                 my $cmd = "forward/opernam $spot[4]";
 383                                                 # send the rcmd but we aren't interested in the replies...
 384                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 385                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 386                                                 } else {
 387                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 388                                                 }
 389                                                 if ($to ne $field[7]) {
 390                                                         $to = $field[7];
 391                                                         $node = DXCluster->get_exact($to);
 392                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 393                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 394                                                         } else {
 395                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 396                                                         }
 397                                                 }
 398                                                 $user->lastoper($main::systime);
 399                                                 $user->put;
 400                                         }
 401                                 }
 402                         }
 403
 404                         # local processing
 405                         my $r;
 406                         eval {
 407                                 $r = Local::spot($self, @spot);
 408                         };
 409 #                       dbg('local', "Local::spot1 error $@") if $@;
 410                         return if $r;
 411
 412                         # DON'T be silly and send on PC26s!
 413                         return if $pcno == 26;
 414
 415                         # send out the filtered spots
 416                         send_dx_spot($self, $line, @spot) if @spot;
 417                         return;
 418                 }
 419
 420                 if ($pcno == 12) {              # announces
 421                         # announce duplicate checking
 422                         $field[3] =~ s/^\s+//;  # remove leading blanks
 423                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 424                                 dbg('chan', "Duplicate Announce ignored\n");
 425                                 return;
 426                         }
 427
 428                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 429
 430                                 # global ann filtering on INPUT
 431                                 if ($self->{inannfilter}) {
 432                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 433                                         unless ($filter) {
 434                                                 dbg('chan', "Rejected by filter");
 435                                                 return;
 436                                         }
 437                                 }
 438
 439                                 # send it
 440                                 $self->send_announce($line, @field[1..6]);
 441                         } else {
 442                                 $self->route($field[2], $line);
 443                         }
 444
 445                         return;
 446                 }
 447
 448                 if ($pcno == 13) {
 449                         last SWITCH;
 450                 }
 451                 if ($pcno == 14) {
 452                         last SWITCH;
 453                 }
 454                 if ($pcno == 15) {
 455                         last SWITCH;
 456                 }
 457
 458                 if ($pcno == 16) {              # add a user
 459                         my $node = DXCluster->get_exact($field[1]);
 460                         my $dxchan;
 461                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 462                                 # add it to the node table if it isn't present and it's
 463                                 # connected locally
 464                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 465                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 466
 467                         }
 468                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 469                         return unless $node->isa('DXNode');
 470                         if ($node->dxchan != $self) {
 471                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 472                                 return;
 473                         }
 474                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 475                                 dbg('chan', "LOOP: $field[1] connected locally");
 476                                 return;
 477                         }
 478                         my $i;
 479
 480                         for ($i = 2; $i < $#field; $i++) {
 481                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 482                                 next if !$call || length $call < 3 || length $call > 8;
 483                                 next if !$confmode;
 484                                 $call = uc $call;
 485                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 486
 487                                 $confmode = $confmode eq '*';
 488                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 489
 490                                 # add this station to the user database, if required
 491                                 $call =~ s/-\d+$//o;        # remove ssid for users
 492                                 my $user = DXUser->get_current($call);
 493                                 $user = DXUser->new($call) if !$user;
 494                                 $user->homenode($node->call) if !$user->homenode;
 495                                 $user->node($node->call);
 496                                 $user->lastin($main::systime) unless DXChannel->get($call);
 497                                 $user->put;
 498                         }
 499
 500                         # queue up any messages (look for privates only)
 501                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 502                         last SWITCH;
 503                 }
 504
 505                 if ($pcno == 17) {              # remove a user
 506                         my $node = DXCluster->get_exact($field[2]);
 507                         my $dxchan;
 508                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 509                                 # add it to the node table if it isn't present and it's
 510                                 # connected locally
 511                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 512                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 513                                 return;
 514                         }
 515                         return unless $node;
 516                         return unless $node->isa('DXNode');
 517                         if ($node->dxchan != $self) {
 518                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 519                                 return;
 520                         }
 521                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 522                                 dbg('chan', "LOOP: $field[2] connected locally");
 523                                 return;
 524                         }
 525                         my $ref = DXCluster->get_exact($field[1]);
 526                         $ref->del() if $ref;
 527                         last SWITCH;
 528                 }
 529
 530                 if ($pcno == 18) {              # link request
 531                         $self->state('init');
 532
 533                         # first clear out any nodes on this dxchannel
 534                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 535                         foreach my $node (@gonenodes) {
 536                                 next if $node->dxchan == $DXProt::me;
 537                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 538                                 $node->del();
 539                         }
 540                         $self->send_local_config();
 541                         $self->send(pc20());
 542                         return;             # we don't pass these on
 543                 }
 544
 545                 if ($pcno == 19) {              # incoming cluster list
 546                         my $i;
 547                         my $newline = "PC19^";
 548                         for ($i = 1; $i < $#field-1; $i += 4) {
 549                                 my $here = $field[$i];
 550                                 my $call = uc $field[$i+1];
 551                                 my $confmode = $field[$i+2];
 552                                 my $ver = $field[$i+3];
 553
 554                                 $ver = 5400 if !$ver && $allowzero;
 555
 556                                 # now check the call over
 557                                 my $node = DXCluster->get_exact($call);
 558                                 if ($node) {
 559                                         my $dxchan;
 560                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 561                                                 dbg('chan', "LOOP: $call connected locally");
 562                                         }
 563                                     if ($node->dxchan != $self) {
 564                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 565                                                 next;
 566                                         }
 567                                         dbg('chan', "already have $call");
 568                                         next;
 569                                 }
 570
 571                                 # check for sane parameters
 572                                 next if $ver < 5000; # only works with version 5 software
 573                                 next if length $call < 3; # min 3 letter callsigns
 574
 575                                 # add it to the nodes table and outgoing line
 576                                 $newline .= "$here^$call^$confmode^$ver^";
 577                                 DXNode->new($self, $call, $confmode, $here, $ver);
 578
 579                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 580                                 my $mref = DXMsg::get_busy($call);
 581                                 $mref->stop_msg($call) if $mref;
 582
 583                                 # add this station to the user database, if required (don't remove SSID from nodes)
 584                                 my $user = DXUser->get_current($call);
 585                                 if (!$user) {
 586                                         $user = DXUser->new($call);
 587                                         $user->sort('A');
 588                                         $user->priv(1);                   # I have relented and defaulted nodes
 589                                         $self->{priv} = 1;                # to user RCMDs allowed
 590                                         $user->homenode($call);
 591                                         $user->node($call);
 592                                 }
 593                                 $user->lastin($main::systime) unless DXChannel->get($call);
 594                                 $user->put;
 595                         }
 596
 597                         return if $newline eq "PC19^";
 598
 599                         # add hop count
 600                         $newline .=  get_hops(19) . "^";
 601                         $line = $newline;
 602                         last SWITCH;
 603                 }
 604
 605                 if ($pcno == 20) {              # send local configuration
 606                         $self->send_local_config();
 607                         $self->send(pc22());
 608                         $self->state('normal');
 609                         return;
 610                 }
 611
 612                 if ($pcno == 21) {              # delete a cluster from the list
 613                         my $call = uc $field[1];
 614                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 615                                 my $node = DXCluster->get_exact($call);
 616                                 if ($node) {
 617                                         if ($node->dxchan != $self) {
 618                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 619                                                 return;
 620                                         }
 621                                         my $dxchan;
 622                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 623                                                 dbg('chan', "LOOP: $call connected locally");
 624                                                 return;
 625                                         }
 626                                         $node->del();
 627                                 } else {
 628                                         dbg('chan', "$call not in table, dropped");
 629                                         return;
 630                                 }
 631                         }
 632                         last SWITCH;
 633                 }
 634
 635                 if ($pcno == 22) {
 636                         $self->state('normal');
 637                         return;
 638                 }
 639
 640                 if ($pcno == 23 || $pcno == 27) { # WWV info
 641
 642                         # route 'foreign' pc27s
 643                         if ($pcno == 27) {
 644                                 if ($field[8] ne $main::mycall) {
 645                                         $self->route($field[8], $line);
 646                                         return;
 647                                 }
 648                         }
 649
 650                         # do some de-duping
 651                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 652                         my $sfi = unpad($field[3]);
 653                         my $k = unpad($field[4]);
 654                         my $i = unpad($field[5]);
 655                         my ($r) = $field[6] =~ /R=(\d+)/;
 656                         $r = 0 unless $r;
 657                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 658                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 659                                 return;
 660                         }
 661                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 662                                 dbg('chan', "Dup WWV Spot ignored\n");
 663                                 return;
 664                         }
 665                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 666
 667                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 668
 669                         my $rep;
 670                         eval {
 671                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 672                         };
 673 #                       dbg('local', "Local::wwv2 error $@") if $@;
 674                         return if $rep;
 675
 676                         # DON'T be silly and send on PC27s!
 677                         return if $pcno == 27;
 678
 679                         # broadcast to the eager world
 680                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 681                         return;
 682                 }
 683
 684                 if ($pcno == 24) {              # set here status
 685                         my $call = uc $field[1];
 686                         my $ref = DXCluster->get_exact($call);
 687                         $ref->here($field[2]) if $ref;
 688                         last SWITCH;
 689                 }
 690
 691                 if ($pcno == 25) {      # merge request
 692                         if ($field[1] ne $main::mycall) {
 693                                 $self->route($field[1], $line);
 694                                 return;
 695                         }
 696                         if ($field[2] eq $main::mycall) {
 697                                 dbg('chan', "Trying to merge to myself, ignored");
 698                                 return;
 699                         }
 700
 701                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 702
 703                         # spots
 704                         if ($field[3] > 0) {
 705                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 706                                 my $in;
 707                                 foreach $in (@in) {
 708                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 709                                 }
 710                         }
 711
 712                         # wwv
 713                         if ($field[4] > 0) {
 714                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 715                                 my $in;
 716                                 foreach $in (@in) {
 717                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 718                                 }
 719                         }
 720                         return;
 721                 }
 722
 723                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 724                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 725                                 DXMsg::process($self, $line);
 726                         } else {
 727                                 $self->route($field[1], $line);
 728                         }
 729                         return;
 730                 }
 731
 732                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 733                         if ($field[1] eq $main::mycall) {
 734                                 my $ref = DXUser->get_current($field[2]);
 735                                 my $cref = DXCluster->get($field[2]);
 736                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 737                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 738                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 739                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 740                                                 my $oldpriv = $self->{priv};
 741                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 742                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 743                                                 $self->{priv} = $oldpriv;
 744                                                 for (@in) {
 745                                                         s/\s*$//og;
 746                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 747                                                         Log('rcmd', 'out', $field[2], $_);
 748                                                 }
 749                                                 delete $self->{remotecmd};
 750                                         } else {
 751                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 752                                         }
 753                                 } else {
 754                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 755                                 }
 756                         } else {
 757                                 my $ref = DXUser->get_current($field[1]);
 758                                 if ($ref && $ref->is_clx) {
 759                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 760                                 } else {
 761                                         $self->route($field[1], $line);
 762                                 }
 763                         }
 764                         return;
 765                 }
 766
 767                 if ($pcno == 35) {              # remote command replies
 768                         if ($field[1] eq $main::mycall) {
 769                                 my $s = $rcmds{$field[2]};
 770                                 if ($s) {
 771                                         my $dxchan = DXChannel->get($s->{call});
 772                                         $dxchan->send($field[3]) if $dxchan;
 773                                         delete $rcmds{$field[2]} if !$dxchan;
 774                                 } else {
 775                                         # send unsolicited ones to the sysop
 776                                         my $dxchan = DXChannel->get($main::myalias);
 777                                         $dxchan->send($field[3]) if $dxchan;
 778                                 }
 779                         } else {
 780                                 my $ref = DXUser->get_current($field[1]);
 781                                 if ($ref && $ref->is_clx) {
 782                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 783                                 } else {
 784                                         $self->route($field[1], $line);
 785                                 }
 786                         }
 787                         return;
 788                 }
 789
 790                 # for pc 37 see 44 onwards
 791
 792                 if ($pcno == 38) {              # node connected list from neighbour
 793                         return;
 794                 }
 795
 796                 if ($pcno == 39) {              # incoming disconnect
 797                         $self->disconnect(1);
 798                         return;
 799                 }
 800
 801                 if ($pcno == 41) {              # user info
 802                         # add this station to the user database, if required
 803                         my $user = DXUser->get_current($field[1]);
 804                         if (!$user) {
 805                                 # then try without an SSID
 806                                 $field[1] =~ s/-\d+$//o;
 807                                 $user = DXUser->get_current($field[1]);
 808                         }
 809                         $user = DXUser->new($field[1]) if !$user;
 810
 811                         if ($field[2] == 1) {
 812                                 $user->name($field[3]);
 813                         } elsif ($field[2] == 2) {
 814                                 $user->qth($field[3]);
 815                         } elsif ($field[2] == 3) {
 816                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 817                                 $user->lat($lat);
 818                                 $user->long($long);
 819                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 820                         } elsif ($field[2] == 4) {
 821                                 $user->homenode($field[3]);
 822                         }
 823                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 824                         $user->put;
 825                         last SWITCH;
 826                 }
 827                 if ($pcno == 43) {
 828                         last SWITCH;
 829                 }
 830                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 831                         DXDb::process($self, $line);
 832                         return;
 833                 }
 834
 835                 if ($pcno == 50) {              # keep alive/user list
 836                         my $node = DXCluster->get_exact($field[1]);
 837                         if ($node) {
 838                                 return unless $node->isa('DXNode');
 839                                 return unless $node->dxchan == $self;
 840                                 $node->update_users($field[2]);
 841                         }
 842                         last SWITCH;
 843                 }
 844
 845                 if ($pcno == 51) {              # incoming ping requests/answers
 846
 847                         # is it for us?
 848                         if ($field[1] eq $main::mycall) {
 849                                 my $flag = $field[3];
 850                                 if ($flag == 1) {
 851                                         $self->send(pc51($field[2], $field[1], '0'));
 852                                 } else {
 853                                         # it's a reply, look in the ping list for this one
 854                                         my $ref = $pings{$field[2]};
 855                                         if ($ref) {
 856                                                 my $tochan =  DXChannel->get($field[2]);
 857                                                 while (@$ref) {
 858                                                         my $r = shift @$ref;
 859                                                         my $dxchan = DXChannel->get($r->{call});
 860                                                         next unless $dxchan;
 861                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 862                                                         if ($dxchan->is_user) {
 863                                                                 my $s = sprintf "%.2f", $t;
 864                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 865                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 866                                                         } elsif ($dxchan->is_node) {
 867                                                                 if ($tochan) {
 868                                                                         $tochan->{nopings} = 2; # pump up the timer
 869                                                                         push @{$tochan->{pingtime}}, $t;
 870                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 871                                                                         my $st;
 872                                                                         for (@{$tochan->{pingtime}}) {
 873                                                                                 $st += $_;
 874                                                                         }
 875                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 876                                                                 }
 877                                                         }
 878                                                 }
 879                                         }
 880                                 }
 881                         } else {
 882                                 # route down an appropriate thingy
 883                                 $self->route($field[1], $line);
 884                         }
 885                         return;
 886                 }
 887
 888                 if ($pcno == 73) {  # WCY broadcasts
 889
 890                         # do some de-duping
 891                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 892                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 893                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 894                                 return;
 895                         }
 896                         @field = map { unpad($_) } @field;
 897                         if (WCY::dup($d,@field[3..7])) {
 898                                 dbg('chan', "Dup WCY Spot ignored\n");
 899                                 return;
 900                         }
 901
 902                         my $wcy = WCY::update($d, @field[2..12]);
 903
 904                         my $rep;
 905                         eval {
 906                                 $rep = Local::wwv($self, @field[1..12]);
 907                         };
 908                         # dbg('local', "Local::wcy error $@") if $@;
 909                         return if $rep;
 910
 911                         # broadcast to the eager world
 912                         send_wcy_spot($self, $line, $d, @field[2..12]);
 913                         return;
 914                 }
 915
 916                 if ($pcno == 84) { # remote commands (incoming)
 917                         if ($field[1] eq $main::mycall) {
 918                                 my $ref = DXUser->get_current($field[2]);
 919                                 my $cref = DXCluster->get($field[2]);
 920                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 921                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 922                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 923                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 924                                                 my $oldpriv = $self->{priv};
 925                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 926                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 927                                                 $self->{priv} = $oldpriv;
 928                                                 for (@in) {
 929                                                         s/\s*$//og;
 930                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 931                                                         Log('rcmd', 'out', $field[2], $_);
 932                                                 }
 933                                                 delete $self->{remotecmd};
 934                                         } else {
 935                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 936                                         }
 937                                 } else {
 938                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 939                                 }
 940                         } else {
 941                                 my $ref = DXUser->get_current($field[1]);
 942                                 if ($ref && $ref->is_clx) {
 943                                         $self->route($field[1], $line);
 944                                 } else {
 945                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 946                                 }
 947                         }
 948                         return;
 949                 }
 950
 951                 if ($pcno == 85) {              # remote command replies
 952                         if ($field[1] eq $main::mycall) {
 953                                 my $dxchan = DXChannel->get($field[3]);
 954                                 if ($dxchan) {
 955                                         $dxchan->send($field[4]);
 956                                 } else {
 957                                         my $s = $rcmds{$field[2]};
 958                                         if ($s) {
 959                                                 $dxchan = DXChannel->get($s->{call});
 960                                                 $dxchan->send($field[4]) if $dxchan;
 961                                                 delete $rcmds{$field[2]} if !$dxchan;
 962                                         } else {
 963                                                 # send unsolicited ones to the sysop
 964                                                 my $dxchan = DXChannel->get($main::myalias);
 965                                                 $dxchan->send($field[4]) if $dxchan;
 966                                         }
 967                                 }
 968                         } else {
 969                                 my $ref = DXUser->get_current($field[1]);
 970                                 if ($ref && $ref->is_clx) {
 971                                         $self->route($field[1], $line);
 972                                 } else {
 973                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 974                                 }
 975                         }
 976                         return;
 977                 }
 978         }
 979
 980         # if get here then rebroadcast the thing with its Hop count decremented (if
 981         # there is one). If it has a hop count and it decrements to zero then don't
 982         # rebroadcast it.
 983         #
 984         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 985         #        REBROADCAST!!!!
 986         #
 987
 988         unless ($self->{isolate}) {
 989                 broadcast_ak1a($line, $self); # send it to everyone but me
 990         }
 991 }
 992
 993 #
 994 # This is called from inside the main cluster processing loop and is used
 995 # for despatching commands that are doing some long processing job
 996 #
 997 sub process
 998 {
 999         my $t = time;
1000         my @dxchan = DXChannel->get_all();
1001         my $dxchan;
1002
1003         foreach $dxchan (@dxchan) {
1004                 next unless $dxchan->is_node();
1005                 next if $dxchan == $me;
1006
1007                 # send a pc50 out on this channel
1008                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1009                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1010                         $dxchan->pc50_t($t);
1011                 }
1012
1013                 # send a ping out on this channel
1014                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1015                         if ($dxchan->{nopings} <= 0) {
1016                                 $dxchan->disconnect;
1017                         } else {
1018                                 addping($main::mycall, $dxchan->call);
1019                                 $dxchan->{nopings} -= 1;
1020                                 $dxchan->{lastping} = $t;
1021                         }
1022                 }
1023         }
1024
1025         my $key;
1026         my $val;
1027         my $cutoff;
1028         if ($main::systime - 3600 > $last_hour) {
1029                 Spot::process;
1030                 Geomag::process;
1031                 AnnTalk::process;
1032                 $last_hour = $main::systime;
1033         }
1034 }
1035
1036 #
1037 # finish up a pc context
1038 #
1039 sub finish
1040 {
1041         my $self = shift;
1042         my $call = $self->call;
1043         my $conn = shift;
1044         my $ref = DXCluster->get_exact($call);
1045
1046         # unbusy and stop and outgoing mail
1047         my $mref = DXMsg::get_busy($call);
1048         $mref->stop_msg($call) if $mref;
1049
1050         # broadcast to all other nodes that all the nodes connected to via me are gone
1051         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1052         my $node;
1053
1054         foreach $node (@gonenodes) {
1055                 next if $node->call eq $call;
1056                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1057                 $node->del();
1058         }
1059
1060         # remove outstanding pings
1061         delete $pings{$call};
1062
1063         # now broadcast to all other ak1a nodes that I have gone
1064         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1065
1066         # I was the last node visited
1067     $self->user->node($main::mycall);
1068
1069         # send info to all logged in thingies
1070         $self->tell_login('logoutn');
1071
1072         Log('DXProt', $call . " Disconnected");
1073         $ref->del() if $ref;
1074 }
1075
1076 #
1077 # some active measures
1078 #
1079 sub send_dx_spot
1080 {
1081         my $self = shift;
1082         my $line = shift;
1083         my @dxchan = DXChannel->get_all();
1084         my $dxchan;
1085
1086         # send it if it isn't the except list and isn't isolated and still has a hop count
1087         # taking into account filtering and so on
1088         foreach $dxchan (@dxchan) {
1089                 my $routeit;
1090                 my ($filter, $hops);
1091
1092                 if ($dxchan->{spotfilter}) {
1093                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
1094                         next unless $filter;
1095                 }
1096
1097                 if ($dxchan->is_node) {
1098                         next if $dxchan == $self;
1099                         if ($hops) {
1100                                 $routeit = $line;
1101                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1102                         } else {
1103                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1104                                 next unless $routeit;
1105                         }
1106                         if ($filter) {
1107                                 $dxchan->send($routeit) if $routeit;
1108                         } else {
1109                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1110                         }
1111                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1112                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1113                         $buf .= "\a\a" if $dxchan->{beep};
1114                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1115                                 $dxchan->send($buf);
1116                         } else {
1117                                 $dxchan->delay($buf);
1118                         }
1119                 }
1120         }
1121 }
1122
1123 sub send_wwv_spot
1124 {
1125         my $self = shift;
1126         my $line = shift;
1127         my @dxchan = DXChannel->get_all();
1128         my $dxchan;
1129
1130         # send it if it isn't the except list and isn't isolated and still has a hop count
1131         # taking into account filtering and so on
1132         foreach $dxchan (@dxchan) {
1133                 my $routeit;
1134                 my ($filter, $hops);
1135
1136                 if ($dxchan->{wwvfilter}) {
1137                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1138                          next unless $filter;
1139                 }
1140                 if ($dxchan->is_node) {
1141                         next if $dxchan == $self;
1142                         if ($hops) {
1143                                 $routeit = $line;
1144                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1145                         } else {
1146                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1147                                 next unless $routeit;
1148                         }
1149                         if ($filter) {
1150                                 $dxchan->send($routeit) if $routeit;
1151                         } else {
1152                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1153
1154                         }
1155                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1156                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1157                         $buf .= "\a\a" if $dxchan->{beep};
1158                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1159                                 $dxchan->send($buf);
1160                         } else {
1161                                 $dxchan->delay($buf);
1162                         }
1163                 }
1164         }
1165 }
1166
1167 sub send_wcy_spot
1168 {
1169         my $self = shift;
1170         my $line = shift;
1171         my @dxchan = DXChannel->get_all();
1172         my $dxchan;
1173
1174         # send it if it isn't the except list and isn't isolated and still has a hop count
1175         # taking into account filtering and so on
1176         foreach $dxchan (@dxchan) {
1177                 my $routeit;
1178                 my ($filter, $hops);
1179
1180                 if ($dxchan->{wcyfilter}) {
1181                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1182                          next unless $filter;
1183                 }
1184                 if ($dxchan->is_clx || $dxchan->is_spider) {
1185                         next if $dxchan == $self;
1186                         if ($hops) {
1187                                 $routeit = $line;
1188                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1189                         } else {
1190                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1191                                 next unless $routeit;
1192                         }
1193                         if ($filter) {
1194                                 $dxchan->send($routeit) if $routeit;
1195                         } else {
1196                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1197                         }
1198                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1199                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1200                         $buf .= "\a\a" if $dxchan->{beep};
1201                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1202                                 $dxchan->send($buf);
1203                         } else {
1204                                 $dxchan->delay($buf);
1205                         }
1206                 }
1207         }
1208 }
1209
1210 # send an announce
1211 sub send_announce
1212 {
1213         my $self = shift;
1214         my $line = shift;
1215         my @dxchan = DXChannel->get_all();
1216         my $dxchan;
1217         my $text = unpad($_[2]);
1218         my $target;
1219         my $to = 'To ';
1220
1221         if ($_[3] eq '*') {     # sysops
1222                 $target = "SYSOP";
1223         } elsif ($_[3] gt ' ') { # speciality list handling
1224                 my ($name) = split /\./, $_[3];
1225                 $target = "$name"; # put the rest in later (if bothered)
1226         }
1227
1228         if ($_[5] eq '1') {
1229                 $target = "WX";
1230                 $to = '';
1231         }
1232         $target = "All" if !$target;
1233
1234         Log('ann', $target, $_[0], $text);
1235
1236         # send it if it isn't the except list and isn't isolated and still has a hop count
1237         # taking into account filtering and so on
1238         foreach $dxchan (@dxchan) {
1239                 my $routeit;
1240                 my ($filter, $hops);
1241
1242                 if ($dxchan->{annfilter}) {
1243                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1244                         next unless $filter;
1245                 }
1246                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1247                         next if $dxchan == $self;
1248                         if ($hops) {
1249                                 $routeit = $line;
1250                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1251                         } else {
1252                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1253                                 next unless $routeit;
1254                         }
1255                         if ($filter) {
1256                                 $dxchan->send($routeit) if $routeit;
1257                         } else {
1258                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1259
1260                         }
1261                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1262                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1263                         my $buf = "$to$target de $_[0]: $text";
1264                         $buf .= "\a\a" if $dxchan->{beep};
1265                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1266                                 $dxchan->send($buf);
1267                         } else {
1268                                 $dxchan->delay($buf);
1269                         }
1270                 }
1271         }
1272 }
1273
1274 sub send_local_config
1275 {
1276         my $self = shift;
1277         my $n;
1278         my @nodes;
1279         my @localnodes;
1280         my @remotenodes;
1281
1282         # send our nodes
1283         if ($self->{isolate}) {
1284                 @localnodes = (DXCluster->get_exact($main::mycall));
1285         } else {
1286                 # create a list of all the nodes that are not connected to this connection
1287                 # and are not themselves isolated, this to make sure that isolated nodes
1288         # don't appear outside of this node
1289                 @nodes = DXNode::get_all();
1290                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1291                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1292                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1293                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1294                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1295                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1296         }
1297
1298         my @s = $me->pc19(@localnodes, @remotenodes);
1299         for (@s) {
1300                 my $routeit = adjust_hops($self, $_);
1301                 $self->send($routeit) if $routeit;
1302         }
1303
1304         # get all the users connected on the above nodes and send them out
1305         foreach $n (@localnodes, @remotenodes) {
1306                 my @users = values %{$n->list};
1307                 my @s = pc16($n, @users);
1308                 for (@s) {
1309                         my $routeit = adjust_hops($self, $_);
1310                         $self->send($routeit) if $routeit;
1311                 }
1312         }
1313 }
1314
1315 #
1316 # route a message down an appropriate interface for a callsign
1317 #
1318 # is called route(to, pcline);
1319 #
1320 sub route
1321 {
1322         my ($self, $call, $line) = @_;
1323         my $cl = DXCluster->get_exact($call);
1324         if ($cl) {       # don't route it back down itself
1325                 if (ref $self && $call eq $self->{call}) {
1326                         dbg('chan', "Trying to route back to source, dropped");
1327                         return;
1328                 }
1329                 my $hops;
1330                 my $dxchan = $cl->{dxchan};
1331                 if ($dxchan) {
1332                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1333                         if ($routeit) {
1334                                 $dxchan->send($routeit) if $dxchan;
1335                         }
1336                 }
1337         }
1338 }
1339
1340 # broadcast a message to all clusters taking into account isolation
1341 # [except those mentioned after buffer]
1342 sub broadcast_ak1a
1343 {
1344         my $s = shift;                          # the line to be rebroadcast
1345         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1346         my @dxchan = DXChannel::get_all_ak1a();
1347         my $dxchan;
1348
1349         # send it if it isn't the except list and isn't isolated and still has a hop count
1350         foreach $dxchan (@dxchan) {
1351                 next if grep $dxchan == $_, @except;
1352                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1353                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1354         }
1355 }
1356
1357 # broadcast a message to all clusters ignoring isolation
1358 # [except those mentioned after buffer]
1359 sub broadcast_all_ak1a
1360 {
1361         my $s = shift;                          # the line to be rebroadcast
1362         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1363         my @dxchan = DXChannel::get_all_ak1a();
1364         my $dxchan;
1365
1366         # send it if it isn't the except list and isn't isolated and still has a hop count
1367         foreach $dxchan (@dxchan) {
1368                 next if grep $dxchan == $_, @except;
1369                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1370                 $dxchan->send($routeit);
1371         }
1372 }
1373
1374 # broadcast to all users
1375 # storing the spot or whatever until it is in a state to receive it
1376 sub broadcast_users
1377 {
1378         my $s = shift;                          # the line to be rebroadcast
1379         my $sort = shift;           # the type of transmission
1380         my $fref = shift;           # a reference to an object to filter on
1381         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1382         my @dxchan = DXChannel::get_all_users();
1383         my $dxchan;
1384         my @out;
1385
1386         foreach $dxchan (@dxchan) {
1387                 next if grep $dxchan == $_, @except;
1388                 push @out, $dxchan;
1389         }
1390         broadcast_list($s, $sort, $fref, @out);
1391 }
1392
1393 # broadcast to a list of users
1394 sub broadcast_list
1395 {
1396         my $s = shift;
1397         my $sort = shift;
1398         my $fref = shift;
1399         my $dxchan;
1400
1401         foreach $dxchan (@_) {
1402                 my $filter = 1;
1403
1404                 if ($sort eq 'dx') {
1405                     next unless $dxchan->{dx};
1406                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1407                         next unless $filter;
1408                 }
1409                 next if $sort eq 'ann' && !$dxchan->{ann};
1410                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1411                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1412                 next if $sort eq 'wx' && !$dxchan->{wx};
1413
1414                 $s =~ s/\a//og unless $dxchan->{beep};
1415
1416                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1417                         $dxchan->send($s);
1418                 } else {
1419                         $dxchan->delay($s);
1420                 }
1421         }
1422 }
1423
1424
1425 #
1426 # obtain the hops from the list for this callsign and pc no
1427 #
1428
1429 sub get_hops
1430 {
1431         my $pcno = shift;
1432         my $hops = $DXProt::hopcount{$pcno};
1433         $hops = $DXProt::def_hopcount if !$hops;
1434         return "H$hops";
1435 }
1436
1437 #
1438 # adjust the hop count on a per node basis using the user loadable
1439 # hop table if available or else decrement an existing one
1440 #
1441
1442 sub adjust_hops
1443 {
1444         my $self = shift;
1445         my $s = shift;
1446         my $call = $self->{call};
1447         my $hops;
1448
1449         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1450                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1451                 confess "$call called adjust_hops with '$s'" unless $pcno;
1452                 my $ref = $nodehops{$call} if %nodehops;
1453                 if ($ref) {
1454                         my $newhops = $ref->{$pcno};
1455                         return "" if defined $newhops && $newhops == 0;
1456                         $newhops = $ref->{default} unless $newhops;
1457                         return "" if defined $newhops && $newhops == 0;
1458                         $newhops = $hops if !$newhops;
1459                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1460                 } else {
1461                         # simply decrement it
1462                         $hops--;
1463                         return "" if !$hops;
1464                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1465                 }
1466         }
1467         return $s;
1468 }
1469
1470 #
1471 # load hop tables
1472 #
1473 sub load_hops
1474 {
1475         my $self = shift;
1476         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1477         do "$main::data/hop_table.pl";
1478         return $@ if $@;
1479         return 0;
1480 }
1481
1482
1483 # add a ping request to the ping queues
1484 sub addping
1485 {
1486         my ($from, $to) = @_;
1487         my $ref = $pings{$to} || [];
1488         my $r = {};
1489         $r->{call} = $from;
1490         $r->{t} = [ gettimeofday ];
1491         route(undef, $to, pc51($to, $main::mycall, 1));
1492         push @$ref, $r;
1493         $pings{$to} = $ref;
1494 }
1495
1496 # add a rcmd request to the rcmd queues
1497 sub addrcmd
1498 {
1499         my ($self, $to, $cmd) = @_;
1500
1501         my $r = {};
1502         $r->{call} = $self->{call};
1503         $r->{t} = $main::systime;
1504         $r->{cmd} = $cmd;
1505         $rcmds{$to} = $r;
1506
1507         my $ref = DXCluster->get_exact($to);
1508     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1509                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1510         } else {
1511                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1512         }
1513 }
1514
1515 sub disconnect
1516 {
1517         my $self = shift;
1518         my $nopc39 = shift;
1519
1520         if ($self->{conn} && !$nopc39) {
1521                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1522         }
1523
1524         $self->SUPER::disconnect;
1525 }
1526
1527
1528 #
1529 # send a talk message to this thingy
1530 #
1531 sub talk
1532 {
1533         my ($self, $from, $to, $via, $line) = @_;
1534
1535         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1536         $self->send(DXProt::pc10($from, $to, $via, $line));
1537         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1538 }
1539 1;
1540 __END__