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 use BadWords;
  33
  34 use strict;
  35 use vars qw($me $pc11_max_age $pc23_max_age
  36                         $last_hour %pings %rcmds
  37                         %nodehops @baddx $baddxfn $censorpc
  38                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  39
  40 $me = undef;                                    # the channel id for this cluster
  41 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  42 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  43
  44 $last_hour = time;                              # last time I did an hourly periodic update
  45 %pings = ();                    # outstanding ping requests outbound
  46 %rcmds = ();                    # outstanding rcmd requests outbound
  47 %nodehops = ();                 # node specific hop control
  48 @baddx = ();                    # list of illegal spotted callsigns
  49 $censorpc = 0;                                  # Do a BadWords::check on text fields and reject things
  50
  51 $baddxfn = "$main::data/baddx.pl";
  52
  53 @checklist =
  54 (
  55  [ qw(c c m bp bc c) ],                 # pc10
  56  [ qw(f m d t m c c h) ],               # pc11
  57  [ qw(c bc m bp bm p h) ],              # pc12
  58  [ qw(c h) ],                                   #
  59  [ qw(c h) ],                                   #
  60  [ qw(c m h) ],                                 #
  61  undef ,                                                # pc16 has to be validated manually
  62  [ qw(c c h) ],                                 # pc17
  63  [ qw(m n) ],                                   # pc18
  64  undef ,                                                # pc19 has to be validated manually
  65  undef ,                                                # pc20 no validation
  66  [ qw(c m h) ],                                 # pc21
  67  undef ,                                                # pc22 no validation
  68  [ qw(d n n n n m c c h) ],             # pc23
  69  [ qw(c p h) ],                                 # pc24
  70  [ qw(c c n n) ],                               # pc25
  71  [ qw(f m d t m c c bc) ],              # pc26
  72  [ qw(d n n n n m c c bc) ],    # pc27
  73  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  74  [ qw(c c n m) ],                               # pc29
  75  [ qw(c c n) ],                                 # pc30
  76  [ qw(c c n) ],                                 # pc31
  77  [ qw(c c n) ],                                 # pc32
  78  [ qw(c c n) ],                                 # pc33
  79  [ qw(c c m) ],                                 # pc34
  80  [ qw(c c m) ],                                 # pc35
  81  [ qw(c c m) ],                                 # pc36
  82  [ qw(c c n m) ],                               # pc37
  83  undef,                                                 # pc38 not interested
  84  [ qw(c m) ],                                   # pc39
  85  [ qw(c c m p n) ],                             # pc40
  86  [ qw(c n m h) ],                               # pc41
  87  [ qw(c c n) ],                                 # pc42
  88  undef,                                                 # pc43 don't handle it
  89  [ qw(c c n m m c) ],                   # pc44
  90  [ qw(c c n m) ],                               # pc45
  91  [ qw(c c n) ],                                 # pc46
  92  undef,                                                 # pc47
  93  undef,                                                 # pc48
  94  [ qw(c m h) ],                                 # pc49
  95  [ qw(c n h) ],                                 # pc50
  96  [ qw(c c n) ],                                 # pc51
  97  undef,
  98  undef,
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,
 105  undef,                                                 # pc60
 106  undef,
 107  undef,
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,                                                 # pc70
 116  undef,
 117  undef,
 118  [ qw(d n n n n n n m m m c c h) ],     # pc73
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,                                                 # pc80
 126  undef,
 127  undef,
 128  undef,
 129  [ qw(c c c m) ],                               # pc84
 130  [ qw(c c c m) ],                               # pc85
 131 );
 132
 133 # use the entry in the check list to check the field list presented
 134 # return OK if line NOT in check list (for now)
 135 sub check
 136 {
 137         my $n = shift;
 138         $n -= 10;
 139         return 0 if $n < 0 || $n > @checklist;
 140         my $ref = $checklist[$n];
 141         return 0 unless ref $ref;
 142
 143         my $i;
 144         shift;    # not interested in the first field
 145         for ($i = 0; $i < @$ref; $i++) {
 146                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 147                 return 0 unless $act;
 148                 next if $blank && $_[$i] =~ /^[ \*]$/;
 149                 if ($act eq 'c') {
 150                         return $i+1 unless is_callsign($_[$i]);
 151                 } elsif ($act eq 'm') {
 152                         return $i+1 unless is_pctext($_[$i]);
 153                 } elsif ($act eq 'p') {
 154                         return $i+1 unless is_pcflag($_[$i]);
 155                 } elsif ($act eq 'f') {
 156                         return $i+1 unless is_freq($_[$i]);
 157                 } elsif ($act eq 'n') {
 158                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 159                 } elsif ($act eq 'h') {
 160                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 161                 } elsif ($act eq 'd') {
 162                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 163                 } elsif ($act eq 't') {
 164                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 165                 }
 166         }
 167         return 0;
 168 }
 169
 170 sub init
 171 {
 172         my $user = DXUser->get($main::mycall);
 173         $DXProt::myprot_version += $main::version*100;
 174         $me = DXProt->new($main::mycall, 0, $user);
 175         $me->{here} = 1;
 176         $me->{state} = "indifferent";
 177         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 178         confess $@ if $@;
 179         $me->{sort} = 'S';    # S for spider
 180
 181         # load the baddx file
 182         do "$baddxfn" if -e "$baddxfn";
 183         print "$@\n" if $@;
 184 }
 185
 186 #
 187 # obtain a new connection this is derived from dxchannel
 188 #
 189
 190 sub new
 191 {
 192         my $self = DXChannel::alloc(@_);
 193         return $self;
 194 }
 195
 196 # this is how a pc connection starts (for an incoming connection)
 197 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 198 # all the crap that comes between).
 199 sub start
 200 {
 201         my ($self, $line, $sort) = @_;
 202         my $call = $self->{call};
 203         my $user = $self->{user};
 204
 205         # remember type of connection
 206         $self->{consort} = $line;
 207         $self->{outbound} = $sort eq 'O';
 208         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 209         $self->{lang} = $user->lang || 'en';
 210         $self->{isolate} = $user->{isolate};
 211         $self->{consort} = $line;       # save the connection type
 212         $self->{here} = 1;
 213
 214         # get the output filters
 215         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 216         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 217         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 218         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 219
 220
 221         # get the INPUT filters (these only pertain to Clusters)
 222         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 223         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 224         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 225         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 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         return unless @field;
 266
 267         pop @field if $field[-1] eq '~';
 268
 269 #       print join(',', @field), "\n";
 270
 271         # ignore any lines that don't start with PC
 272         return if !$field[0] =~ /^PC/;
 273
 274         # process PC frames
 275         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 276         return unless $pcno;
 277         return if $pcno < 10 || $pcno > 99;
 278
 279         # check for and dump bad protocol messages
 280         my $n = check($pcno, @field);
 281         if ($n) {
 282                 dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 283                 return;
 284         }
 285
 286         # local processing 1
 287         my $pcr;
 288         eval {
 289                 $pcr = Local::pcprot($self, $pcno, @field);
 290         };
 291 #       dbg('local', "Local::pcprot error $@") if $@;
 292         return if $pcr;
 293
 294  SWITCH: {
 295                 if ($pcno == 10) {              # incoming talk
 296
 297                         # will we allow it at all?
 298                         if ($censorpc) {
 299                                 my @bad;
 300                                 if (@bad = BadWords::check($field[3])) {
 301                                         dbg('chan', "Bad words: @bad, dropped" );
 302                                         return;
 303                                 }
 304                         }
 305
 306                         # is it for me or one of mine?
 307                         my ($to, $via, $call, $dxchan);
 308                         if ($field[5] gt ' ') {
 309                                 $call = $via = $field[2];
 310                                 $to = $field[5];
 311                         } else {
 312                                 $call = $to = $field[2];
 313                         }
 314                         $dxchan = DXChannel->get($call);
 315                         if ($dxchan && $dxchan->is_user) {
 316                                 $field[3] =~ s/\%5E/^/g;
 317                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 318                         } else {
 319                                 $self->route($field[2], $line); # relay it on its way
 320                         }
 321                         return;
 322                 }
 323
 324                 if ($pcno == 11 || $pcno == 26) { # dx spot
 325
 326                         # route 'foreign' pc26s
 327                         if ($pcno == 26) {
 328                                 if ($field[7] ne $main::mycall) {
 329                                         $self->route($field[7], $line);
 330                                         return;
 331                                 }
 332                         }
 333
 334                         # if this is a 'nodx' node then ignore it
 335                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 336                                 dbg('chan', "Bad DXNode, dropped");
 337                                 return;
 338                         }
 339
 340                         # convert the date to a unix date
 341                         my $d = cltounix($field[3], $field[4]);
 342                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 343                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 344                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 345                                 return;
 346                         }
 347
 348                         # is it 'baddx'
 349                         if (grep $field[2] eq $_, @baddx) {
 350                                 dbg('chan', "Bad DX spot, ignored");
 351                                 return;
 352                         }
 353
 354                         # do some de-duping
 355                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 356                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 357                                 dbg('chan', "Duplicate Spot ignored\n");
 358                                 return;
 359                         }
 360                         if ($censorpc) {
 361                                 my @bad;
 362                                 if (@bad = BadWords::check($field[5])) {
 363                                         dbg('chan', "Bad words: @bad, dropped" );
 364                                         return;
 365                                 }
 366                         }
 367
 368                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 369
 370             #
 371                         # @spot at this point contains:-
 372             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 373                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 374                         # you should be able to route on any of these
 375             #
 376
 377                         # fix up qra locators of known users
 378                         my $user = DXUser->get_current($spot[4]);
 379                         if ($user) {
 380                                 my $qra = $user->qra;
 381                                 unless ($qra && DXBearing::is_qra($qra)) {
 382                                         my $lat = $user->lat;
 383                                         my $long = $user->long;
 384                                         if (defined $lat && defined $long) {
 385                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 386                                                 $user->put;
 387                                         }
 388                                 }
 389
 390                                 # send a remote command to a distant cluster if it is visible and there is no
 391                                 # qra locator and we havn't done it for a month.
 392
 393                                 unless ($user->qra) {
 394                                         my $node;
 395                                         my $to = $user->homenode;
 396                                         my $last = $user->lastoper || 0;
 397                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 398                                                 my $cmd = "forward/opernam $spot[4]";
 399                                                 # send the rcmd but we aren't interested in the replies...
 400                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 401                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 402                                                 } else {
 403                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 404                                                 }
 405                                                 if ($to ne $field[7]) {
 406                                                         $to = $field[7];
 407                                                         $node = DXCluster->get_exact($to);
 408                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 409                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 410                                                         } else {
 411                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 412                                                         }
 413                                                 }
 414                                                 $user->lastoper($main::systime);
 415                                                 $user->put;
 416                                         }
 417                                 }
 418                         }
 419
 420                         # local processing
 421                         my $r;
 422                         eval {
 423                                 $r = Local::spot($self, @spot);
 424                         };
 425 #                       dbg('local', "Local::spot1 error $@") if $@;
 426                         return if $r;
 427
 428                         # DON'T be silly and send on PC26s!
 429                         return if $pcno == 26;
 430
 431                         # send out the filtered spots
 432                         send_dx_spot($self, $line, @spot) if @spot;
 433                         return;
 434                 }
 435
 436                 if ($pcno == 12) {              # announces
 437                         # announce duplicate checking
 438                         $field[3] =~ s/^\s+//;  # remove leading blanks
 439                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 440                                 dbg('chan', "Duplicate Announce ignored");
 441                                 return;
 442                         }
 443
 444                         if ($censorpc) {
 445                                 my @bad;
 446                                 if (@bad = BadWords::check($field[3])) {
 447                                         dbg('chan', "Bad words: @bad, dropped" );
 448                                         return;
 449                                 }
 450                         }
 451
 452                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 453
 454                                 # global ann filtering on INPUT
 455                                 if ($self->{inannfilter}) {
 456                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 457                                         my @dxcc = Prefix::extract($field[1]);
 458                                         if (@dxcc > 0) {
 459                                                 $ann_dxcc = $dxcc[1]->dxcc;
 460                                                 $ann_itu = $dxcc[1]->itu;
 461                                                 $ann_cq = $dxcc[1]->cq();
 462                                         }
 463                                         @dxcc = Prefix::extract($field[5]);
 464                                         if (@dxcc > 0) {
 465                                                 $org_dxcc = $dxcc[1]->dxcc;
 466                                                 $org_itu = $dxcc[1]->itu;
 467                                                 $org_cq = $dxcc[1]->cq();
 468                                         }
 469                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 470                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 471                                         unless ($filter) {
 472                                                 dbg('chan', "Rejected by filter");
 473                                                 return;
 474                                         }
 475                                 }
 476
 477                                 # send it
 478                                 $self->send_announce($line, @field[1..6]);
 479                         } else {
 480                                 $self->route($field[2], $line);
 481                         }
 482
 483                         return;
 484                 }
 485
 486                 if ($pcno == 13) {
 487                         last SWITCH;
 488                 }
 489                 if ($pcno == 14) {
 490                         last SWITCH;
 491                 }
 492                 if ($pcno == 15) {
 493                         last SWITCH;
 494                 }
 495
 496                 if ($pcno == 16) {              # add a user
 497                         my $node = DXCluster->get_exact($field[1]);
 498                         my $dxchan;
 499                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 500                                 # add it to the node table if it isn't present and it's
 501                                 # connected locally
 502                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 503                                 dbg('chan', "$field[1] no PC19 yet, autovivified as node");
 504 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 505
 506                         }
 507                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 508                                 dbg('chan', "LOOP: trying to alter config on this node from outside!");
 509                                 return;
 510                         }
 511                         if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
 512                                 dbg('chan', "LOOP: trying to connect sysop from outside!");
 513                                 return;
 514                         }
 515                         unless ($node) {
 516                                 dbg('chan', "Node $field[1] not in config");
 517                                 return;
 518                         }
 519                         unless ($node->isa('DXNode')) {
 520                                 dbg('chan', "$field[1] is not a node");
 521                                 return;
 522                         }
 523                         if ($node->dxchan != $self) {
 524                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 525                                 return;
 526                         }
 527                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 528                                 dbg('chan', "LOOP: $field[1] connected locally");
 529                                 return;
 530                         }
 531                         my $i;
 532
 533                         for ($i = 2; $i < $#field; $i++) {
 534                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 535                                 next unless $call && $confmode && defined $here && is_callsign($call);
 536                                 my $ref = DXCluster->get_exact($call);
 537                                 if ($ref) {
 538                                         if ($ref->isa('DXNode')) {
 539                                                 dbg('chan', "LOOP: $call is a node");
 540                                                 next;
 541                                         }
 542                                         my $rcall = $ref->call;
 543                                         dbg('chan', "LOOP: already have $call on $rcall");
 544                                         next;
 545                                 }
 546
 547                                 $confmode = $confmode eq '*';
 548                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 549
 550                                 # add this station to the user database, if required
 551                                 $call =~ s/-\d+$//o;        # remove ssid for users
 552                                 my $user = DXUser->get_current($call);
 553                                 $user = DXUser->new($call) if !$user;
 554                                 $user->homenode($node->call) if !$user->homenode;
 555                                 $user->node($node->call);
 556                                 $user->lastin($main::systime) unless DXChannel->get($call);
 557                                 $user->put;
 558                         }
 559
 560                         # queue up any messages (look for privates only)
 561                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 562                         last SWITCH;
 563                 }
 564
 565                 if ($pcno == 17) {              # remove a user
 566                         my $node = DXCluster->get_exact($field[2]);
 567                         my $dxchan;
 568                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 569                                 # add it to the node table if it isn't present and it's
 570                                 # connected locally
 571                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 572                                 dbg('chan', "$field[2] no PC19 yet, autovivified as node");
 573 #                               broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 574                         }
 575                         if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
 576                                 dbg('chan', "LOOP: trying to alter config on this node from outside!");
 577                                 return;
 578                         }
 579                         if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
 580                                 dbg('chan', "LOOP: trying to disconnect sysop from outside!");
 581                                 return;
 582                         }
 583                         unless ($node) {
 584                                 dbg('chan', "Node $field[2] not in config");
 585                                 return;
 586                         }
 587                         unless ($node->isa('DXNode')) {
 588                                 dbg('chan', "LOOP: $field[2] is not a node");
 589                                 return;
 590                         }
 591                         if ($node->dxchan != $self) {
 592                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 593                                 return;
 594                         }
 595                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 596                                 dbg('chan', "LOOP: $field[2] connected locally");
 597                                 return;
 598                         }
 599                         my $ref = DXCluster->get_exact($field[1]);
 600                         if ($ref) {
 601                                 $ref->del;
 602                         } else {
 603                                 dbg('chan', "$field[1] not known" );
 604                                 return;
 605                         }
 606                         last SWITCH;
 607                 }
 608
 609                 if ($pcno == 18) {              # link request
 610                         $self->state('init');
 611
 612                         # first clear out any nodes on this dxchannel
 613                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 614                         foreach my $node (@gonenodes) {
 615                                 next if $node->dxchan == $DXProt::me;
 616                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 617                                 $node->del();
 618                         }
 619                         $self->send_local_config();
 620                         $self->send(pc20());
 621                         return;             # we don't pass these on
 622                 }
 623
 624                 if ($pcno == 19) {              # incoming cluster list
 625                         my $i;
 626                         my $newline = "PC19^";
 627                         for ($i = 1; $i < $#field-1; $i += 4) {
 628                                 my $here = $field[$i];
 629                                 my $call = uc $field[$i+1];
 630                                 my $confmode = $field[$i+2];
 631                                 my $ver = $field[$i+3];
 632                                 next unless defined $here && defined $confmode && is_callsign($call);
 633
 634                                 $ver = 5400 if !$ver && $allowzero;
 635
 636                                 # now check the call over
 637                                 my $node = DXCluster->get_exact($call);
 638                                 if ($node) {
 639                                         my $dxchan;
 640                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 641                                                 dbg('chan', "LOOP: $call connected locally");
 642                                         }
 643                                     if ($node->dxchan != $self) {
 644                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 645                                                 next;
 646                                         }
 647                                         dbg('chan', "already have $call");
 648                                         next;
 649                                 }
 650
 651                                 # check for sane parameters
 652                                 next if $ver < 5000; # only works with version 5 software
 653                                 next if length $call < 3; # min 3 letter callsigns
 654
 655                                 # add it to the nodes table and outgoing line
 656                                 $newline .= "$here^$call^$confmode^$ver^";
 657                                 DXNode->new($self, $call, $confmode, $here, $ver);
 658
 659                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 660                                 my $mref = DXMsg::get_busy($call);
 661                                 $mref->stop_msg($call) if $mref;
 662
 663                                 # add this station to the user database, if required (don't remove SSID from nodes)
 664                                 my $user = DXUser->get_current($call);
 665                                 if (!$user) {
 666                                         $user = DXUser->new($call);
 667                                         $user->sort('A');
 668                                         $user->priv(1);                   # I have relented and defaulted nodes
 669                                         $self->{priv} = 1;                # to user RCMDs allowed
 670                                         $user->homenode($call);
 671                                         $user->node($call);
 672                                 }
 673                                 $user->lastin($main::systime) unless DXChannel->get($call);
 674                                 $user->put;
 675                         }
 676
 677                         return if $newline eq "PC19^";
 678
 679                         # add hop count
 680                         $newline .=  get_hops(19) . "^";
 681                         $line = $newline;
 682                         last SWITCH;
 683                 }
 684
 685                 if ($pcno == 20) {              # send local configuration
 686                         $self->send_local_config();
 687                         $self->send(pc22());
 688                         $self->state('normal');
 689                         return;
 690                 }
 691
 692                 if ($pcno == 21) {              # delete a cluster from the list
 693                         my $call = uc $field[1];
 694                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 695                                 my $node = DXCluster->get_exact($call);
 696                                 if ($node) {
 697                                         unless ($node->isa('DXNode')) {
 698                                                 dbg('chan', "$call is not a node");
 699                                                 return;
 700                                         }
 701                                         if ($call eq $self->{call}) {
 702                                                 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
 703                                                 return;
 704                                         }
 705                                         if ($node->dxchan != $self) {
 706                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 707                                                 return;
 708                                         }
 709                                         my $dxchan;
 710                                         if ($dxchan = DXChannel->get($call)) {
 711                                                 dbg('chan', "LOOP: $call connected locally");
 712                                                 return;
 713                                         }
 714                                         $node->del();
 715                                 } else {
 716                                         dbg('chan', "$call not in table, dropped");
 717                                         return;
 718                                 }
 719                         } else {
 720                                 dbg('chan', "I WILL NOT be disconnected!");
 721                                 return;
 722                         }
 723                         last SWITCH;
 724                 }
 725
 726                 if ($pcno == 22) {
 727                         $self->state('normal');
 728                         return;
 729                 }
 730
 731                 if ($pcno == 23 || $pcno == 27) { # WWV info
 732
 733                         # route 'foreign' pc27s
 734                         if ($pcno == 27) {
 735                                 if ($field[8] ne $main::mycall) {
 736                                         $self->route($field[8], $line);
 737                                         return;
 738                                 }
 739                         }
 740
 741                         # do some de-duping
 742                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 743                         my $sfi = unpad($field[3]);
 744                         my $k = unpad($field[4]);
 745                         my $i = unpad($field[5]);
 746                         my ($r) = $field[6] =~ /R=(\d+)/;
 747                         $r = 0 unless $r;
 748                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 749                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 750                                 return;
 751                         }
 752                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 753                                 dbg('chan', "Dup WWV Spot ignored\n");
 754                                 return;
 755                         }
 756                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 757
 758                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 759
 760                         my $rep;
 761                         eval {
 762                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 763                         };
 764 #                       dbg('local', "Local::wwv2 error $@") if $@;
 765                         return if $rep;
 766
 767                         # DON'T be silly and send on PC27s!
 768                         return if $pcno == 27;
 769
 770                         # broadcast to the eager world
 771                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 772                         return;
 773                 }
 774
 775                 if ($pcno == 24) {              # set here status
 776                         my $call = uc $field[1];
 777                         my $ref = DXCluster->get_exact($call);
 778                         $ref->here($field[2]) if $ref;
 779                         last SWITCH;
 780                 }
 781
 782                 if ($pcno == 25) {      # merge request
 783                         if ($field[1] ne $main::mycall) {
 784                                 $self->route($field[1], $line);
 785                                 return;
 786                         }
 787                         if ($field[2] eq $main::mycall) {
 788                                 dbg('chan', "Trying to merge to myself, ignored");
 789                                 return;
 790                         }
 791
 792                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 793
 794                         # spots
 795                         if ($field[3] > 0) {
 796                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 797                                 my $in;
 798                                 foreach $in (@in) {
 799                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 800                                 }
 801                         }
 802
 803                         # wwv
 804                         if ($field[4] > 0) {
 805                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 806                                 my $in;
 807                                 foreach $in (@in) {
 808                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 809                                 }
 810                         }
 811                         return;
 812                 }
 813
 814                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 815                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 816                                 DXMsg::process($self, $line);
 817                         } else {
 818                                 $self->route($field[1], $line) unless $self->is_clx;
 819                         }
 820                         return;
 821                 }
 822
 823                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 824                         if ($field[1] eq $main::mycall) {
 825                                 my $ref = DXUser->get_current($field[2]);
 826                                 my $cref = DXCluster->get($field[2]);
 827                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 828                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 829                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 830                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 831                                                 my $oldpriv = $self->{priv};
 832                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 833                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 834                                                 $self->{priv} = $oldpriv;
 835                                                 for (@in) {
 836                                                         s/\s*$//og;
 837                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 838                                                         Log('rcmd', 'out', $field[2], $_);
 839                                                 }
 840                                                 delete $self->{remotecmd};
 841                                         } else {
 842                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 843                                         }
 844                                 } else {
 845                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 846                                 }
 847                         } else {
 848                                 my $ref = DXUser->get_current($field[1]);
 849                                 if ($ref && $ref->is_clx) {
 850                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 851                                 } else {
 852                                         $self->route($field[1], $line);
 853                                 }
 854                         }
 855                         return;
 856                 }
 857
 858                 if ($pcno == 35) {              # remote command replies
 859                         if ($field[1] eq $main::mycall) {
 860                                 my $s = $rcmds{$field[2]};
 861                                 if ($s) {
 862                                         my $dxchan = DXChannel->get($s->{call});
 863                                         $dxchan->send($field[3]) if $dxchan;
 864                                         delete $rcmds{$field[2]} if !$dxchan;
 865                                 } else {
 866                                         # send unsolicited ones to the sysop
 867                                         my $dxchan = DXChannel->get($main::myalias);
 868                                         $dxchan->send($field[3]) if $dxchan;
 869                                 }
 870                         } else {
 871                                 my $ref = DXUser->get_current($field[1]);
 872                                 if ($ref && $ref->is_clx) {
 873                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 874                                 } else {
 875                                         $self->route($field[1], $line);
 876                                 }
 877                         }
 878                         return;
 879                 }
 880
 881                 # for pc 37 see 44 onwards
 882
 883                 if ($pcno == 38) {              # node connected list from neighbour
 884                         return;
 885                 }
 886
 887                 if ($pcno == 39) {              # incoming disconnect
 888                         if ($field[1] eq $self->{call}) {
 889                                 $self->disconnect(1);
 890                         } else {
 891                                 dbg('chan', "LOOP: came in on wrong channel");
 892                         }
 893                         return;
 894                 }
 895
 896                 if ($pcno == 41) {              # user info
 897                         # add this station to the user database, if required
 898                         my $user = DXUser->get_current($field[1]);
 899                         if (!$user) {
 900                                 # then try without an SSID
 901                                 $field[1] =~ s/-\d+$//o;
 902                                 $user = DXUser->get_current($field[1]);
 903                         }
 904                         $user = DXUser->new($field[1]) if !$user;
 905
 906                         if ($field[2] == 1) {
 907                                 $user->name($field[3]);
 908                         } elsif ($field[2] == 2) {
 909                                 $user->qth($field[3]);
 910                         } elsif ($field[2] == 3) {
 911                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 912                                 $user->lat($lat);
 913                                 $user->long($long);
 914                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 915                         } elsif ($field[2] == 4) {
 916                                 $user->homenode($field[3]);
 917                         }
 918                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 919                         $user->put;
 920                         last SWITCH;
 921                 }
 922                 if ($pcno == 43) {
 923                         last SWITCH;
 924                 }
 925                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 926                         DXDb::process($self, $line);
 927                         return;
 928                 }
 929
 930                 if ($pcno == 50) {              # keep alive/user list
 931                         my $node = DXCluster->get_exact($field[1]);
 932                         if ($node) {
 933                                 return unless $node->isa('DXNode');
 934                                 return unless $node->dxchan == $self;
 935                                 $node->update_users($field[2]);
 936                         }
 937                         last SWITCH;
 938                 }
 939
 940                 if ($pcno == 51) {              # incoming ping requests/answers
 941
 942                         # is it for us?
 943                         if ($field[1] eq $main::mycall) {
 944                                 my $flag = $field[3];
 945                                 if ($flag == 1) {
 946                                         $self->send(pc51($field[2], $field[1], '0'));
 947                                 } else {
 948                                         # it's a reply, look in the ping list for this one
 949                                         my $ref = $pings{$field[2]};
 950                                         if ($ref) {
 951                                                 my $tochan =  DXChannel->get($field[2]);
 952                                                 while (@$ref) {
 953                                                         my $r = shift @$ref;
 954                                                         my $dxchan = DXChannel->get($r->{call});
 955                                                         next unless $dxchan;
 956                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 957                                                         if ($dxchan->is_user) {
 958                                                                 my $s = sprintf "%.2f", $t;
 959                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 960                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 961                                                         } elsif ($dxchan->is_node) {
 962                                                                 if ($tochan) {
 963                                                                         $tochan->{nopings} = 2; # pump up the timer
 964                                                                         push @{$tochan->{pingtime}}, $t;
 965                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 966                                                                         my $st;
 967                                                                         for (@{$tochan->{pingtime}}) {
 968                                                                                 $st += $_;
 969                                                                         }
 970                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 971                                                                 }
 972                                                         }
 973                                                 }
 974                                         }
 975                                 }
 976                         } else {
 977                                 # route down an appropriate thingy
 978                                 $self->route($field[1], $line);
 979                         }
 980                         return;
 981                 }
 982
 983                 if ($pcno == 75) {              # dunno but route it
 984                         if ($field[1] ne $main::mycall) {
 985                                 $self->route($field[1], $line);
 986                         }
 987                         return;
 988                 }
 989
 990                 if ($pcno == 73) {  # WCY broadcasts
 991
 992                         # do some de-duping
 993                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 994                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 995                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 996                                 return;
 997                         }
 998                         @field = map { unpad($_) } @field;
 999                         if (WCY::dup($d,@field[3..7])) {
1000                                 dbg('chan', "Dup WCY Spot ignored\n");
1001                                 return;
1002                         }
1003
1004                         my $wcy = WCY::update($d, @field[2..12]);
1005
1006                         my $rep;
1007                         eval {
1008                                 $rep = Local::wwv($self, @field[1..12]);
1009                         };
1010                         # dbg('local', "Local::wcy error $@") if $@;
1011                         return if $rep;
1012
1013                         # broadcast to the eager world
1014                         send_wcy_spot($self, $line, $d, @field[2..12]);
1015                         return;
1016                 }
1017
1018                 if ($pcno == 84) { # remote commands (incoming)
1019                         if ($field[1] eq $main::mycall) {
1020                                 my $ref = DXUser->get_current($field[2]);
1021                                 my $cref = DXCluster->get($field[2]);
1022                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1023                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
1024                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
1025                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1026                                                 my $oldpriv = $self->{priv};
1027                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
1028                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1029                                                 $self->{priv} = $oldpriv;
1030                                                 for (@in) {
1031                                                         s/\s*$//og;
1032                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1033                                                         Log('rcmd', 'out', $field[2], $_);
1034                                                 }
1035                                                 delete $self->{remotecmd};
1036                                         } else {
1037                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1038                                         }
1039                                 } else {
1040                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1041                                 }
1042                         } else {
1043                                 my $ref = DXUser->get_current($field[1]);
1044                                 if ($ref && $ref->is_clx) {
1045                                         $self->route($field[1], $line);
1046                                 } else {
1047                                         route($field[1], pc34($field[2], $field[1], $field[4]));
1048                                 }
1049                         }
1050                         return;
1051                 }
1052
1053                 if ($pcno == 85) {              # remote command replies
1054                         if ($field[1] eq $main::mycall) {
1055                                 my $dxchan = DXChannel->get($field[3]);
1056                                 if ($dxchan) {
1057                                         $dxchan->send($field[4]);
1058                                 } else {
1059                                         my $s = $rcmds{$field[2]};
1060                                         if ($s) {
1061                                                 $dxchan = DXChannel->get($s->{call});
1062                                                 $dxchan->send($field[4]) if $dxchan;
1063                                                 delete $rcmds{$field[2]} if !$dxchan;
1064                                         } else {
1065                                                 # send unsolicited ones to the sysop
1066                                                 my $dxchan = DXChannel->get($main::myalias);
1067                                                 $dxchan->send($field[4]) if $dxchan;
1068                                         }
1069                                 }
1070                         } else {
1071                                 my $ref = DXUser->get_current($field[1]);
1072                                 if ($ref && $ref->is_clx) {
1073                                         $self->route($field[1], $line);
1074                                 } else {
1075                                         route($field[1], pc35($field[2], $field[1], $field[4]));
1076                                 }
1077                         }
1078                         return;
1079                 }
1080         }
1081
1082         # if get here then rebroadcast the thing with its Hop count decremented (if
1083         # there is one). If it has a hop count and it decrements to zero then don't
1084         # rebroadcast it.
1085         #
1086         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1087         #        REBROADCAST!!!!
1088         #
1089
1090         unless ($self->{isolate}) {
1091                 broadcast_ak1a($line, $self); # send it to everyone but me
1092         }
1093 }
1094
1095 #
1096 # This is called from inside the main cluster processing loop and is used
1097 # for despatching commands that are doing some long processing job
1098 #
1099 sub process
1100 {
1101         my $t = time;
1102         my @dxchan = DXChannel->get_all();
1103         my $dxchan;
1104
1105         foreach $dxchan (@dxchan) {
1106                 next unless $dxchan->is_node();
1107                 next if $dxchan == $me;
1108
1109                 # send a pc50 out on this channel
1110                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1111                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1112                         $dxchan->pc50_t($t);
1113                 }
1114
1115                 # send a ping out on this channel
1116                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1117                         if ($dxchan->{nopings} <= 0) {
1118                                 $dxchan->disconnect;
1119                         } else {
1120                                 addping($main::mycall, $dxchan->call);
1121                                 $dxchan->{nopings} -= 1;
1122                                 $dxchan->{lastping} = $t;
1123                         }
1124                 }
1125         }
1126
1127         my $key;
1128         my $val;
1129         my $cutoff;
1130         if ($main::systime - 3600 > $last_hour) {
1131 #               Spot::process;
1132 #               Geomag::process;
1133 #               AnnTalk::process;
1134                 $last_hour = $main::systime;
1135         }
1136 }
1137
1138 #
1139 # finish up a pc context
1140 #
1141 sub finish
1142 {
1143         my $self = shift;
1144         my $call = $self->call;
1145         my $conn = shift;
1146         my $ref = DXCluster->get_exact($call);
1147
1148         # unbusy and stop and outgoing mail
1149         my $mref = DXMsg::get_busy($call);
1150         $mref->stop_msg($call) if $mref;
1151
1152         # broadcast to all other nodes that all the nodes connected to via me are gone
1153         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1154         my $node;
1155
1156         foreach $node (@gonenodes) {
1157                 next if $node->call eq $call;
1158                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1159                 $node->del();
1160         }
1161
1162         # remove outstanding pings
1163         delete $pings{$call};
1164
1165         # now broadcast to all other ak1a nodes that I have gone
1166         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1167
1168         # I was the last node visited
1169     $self->user->node($main::mycall);
1170
1171         # send info to all logged in thingies
1172         $self->tell_login('logoutn');
1173
1174         Log('DXProt', $call . " Disconnected");
1175         $ref->del() if $ref;
1176 }
1177
1178 #
1179 # some active measures
1180 #
1181 sub send_dx_spot
1182 {
1183         my $self = shift;
1184         my $line = shift;
1185         my @dxchan = DXChannel->get_all();
1186         my $dxchan;
1187
1188         # send it if it isn't the except list and isn't isolated and still has a hop count
1189         # taking into account filtering and so on
1190         foreach $dxchan (@dxchan) {
1191                 my $routeit;
1192                 my ($filter, $hops);
1193
1194                 if ($dxchan->{spotsfilter}) {
1195                     ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1196                         next unless $filter;
1197                 }
1198
1199                 if ($dxchan->is_node) {
1200                         next if $dxchan == $self;
1201                         if ($hops) {
1202                                 $routeit = $line;
1203                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1204                         } else {
1205                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1206                                 next unless $routeit;
1207                         }
1208                         if ($filter) {
1209                                 $dxchan->send($routeit) if $routeit;
1210                         } else {
1211                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1212                         }
1213                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1214                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1215                         $buf .= "\a\a" if $dxchan->{beep};
1216                         $buf =~ s/\%5E/^/g;
1217                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1218                                 $dxchan->send($buf);
1219                         } else {
1220                                 $dxchan->delay($buf);
1221                         }
1222                 }
1223         }
1224 }
1225
1226 sub send_wwv_spot
1227 {
1228         my $self = shift;
1229         my $line = shift;
1230         my @dxchan = DXChannel->get_all();
1231         my $dxchan;
1232
1233         # send it if it isn't the except list and isn't isolated and still has a hop count
1234         # taking into account filtering and so on
1235         foreach $dxchan (@dxchan) {
1236                 my $routeit;
1237                 my ($filter, $hops);
1238
1239                 if ($dxchan->{wwvfilter}) {
1240                          ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call} );
1241                          next unless $filter;
1242                 }
1243                 if ($dxchan->is_node) {
1244                         next if $dxchan == $self;
1245                         if ($hops) {
1246                                 $routeit = $line;
1247                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1248                         } else {
1249                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1250                                 next unless $routeit;
1251                         }
1252                         if ($filter) {
1253                                 $dxchan->send($routeit) if $routeit;
1254                         } else {
1255                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1256
1257                         }
1258                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1259                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1260                         $buf .= "\a\a" if $dxchan->{beep};
1261                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1262                                 $dxchan->send($buf);
1263                         } else {
1264                                 $dxchan->delay($buf);
1265                         }
1266                 }
1267         }
1268 }
1269
1270 sub send_wcy_spot
1271 {
1272         my $self = shift;
1273         my $line = shift;
1274         my @dxchan = DXChannel->get_all();
1275         my $dxchan;
1276
1277         # send it if it isn't the except list and isn't isolated and still has a hop count
1278         # taking into account filtering and so on
1279         foreach $dxchan (@dxchan) {
1280                 my $routeit;
1281                 my ($filter, $hops);
1282
1283                 if ($dxchan->{wcyfilter}) {
1284                          ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call} );
1285                          next unless $filter;
1286                 }
1287                 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1288                         next if $dxchan == $self;
1289                         if ($hops) {
1290                                 $routeit = $line;
1291                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1292                         } else {
1293                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1294                                 next unless $routeit;
1295                         }
1296                         if ($filter) {
1297                                 $dxchan->send($routeit) if $routeit;
1298                         } else {
1299                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1300                         }
1301                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1302                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1303                         $buf .= "\a\a" if $dxchan->{beep};
1304                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1305                                 $dxchan->send($buf);
1306                         } else {
1307                                 $dxchan->delay($buf);
1308                         }
1309                 }
1310         }
1311 }
1312
1313 # send an announce
1314 sub send_announce
1315 {
1316         my $self = shift;
1317         my $line = shift;
1318         my @dxchan = DXChannel->get_all();
1319         my $dxchan;
1320         my $text = unpad($_[2]);
1321         my $target;
1322         my $to = 'To ';
1323
1324         if ($_[3] eq '*') {     # sysops
1325                 $target = "SYSOP";
1326         } elsif ($_[3] gt ' ') { # speciality list handling
1327                 my ($name) = split /\./, $_[3];
1328                 $target = "$name"; # put the rest in later (if bothered)
1329         }
1330
1331         if ($_[5] eq '1') {
1332                 $target = "WX";
1333                 $to = '';
1334         }
1335         $target = "All" if !$target;
1336
1337         Log('ann', $target, $_[0], $text);
1338
1339         # send it if it isn't the except list and isn't isolated and still has a hop count
1340         # taking into account filtering and so on
1341         foreach $dxchan (@dxchan) {
1342                 my $routeit;
1343                 my ($filter, $hops);
1344
1345                 if ($dxchan->{annfilter}) {
1346                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1347                         my @dxcc = Prefix::extract($_[0]);
1348                         if (@dxcc > 0) {
1349                                 $ann_dxcc = $dxcc[1]->dxcc;
1350                                 $ann_itu = $dxcc[1]->itu;
1351                                 $ann_cq = $dxcc[1]->cq;
1352                         }
1353                         @dxcc = Prefix::extract($_[4]);
1354                         if (@dxcc > 0) {
1355                                 $org_dxcc = $dxcc[1]->dxcc;
1356                                 $org_itu = $dxcc[1]->itu;
1357                                 $org_cq = $dxcc[1]->cq;
1358                         }
1359                         ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1360                         next unless $filter;
1361                 }
1362                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1363                         next if $dxchan == $self;
1364                         if ($hops) {
1365                                 $routeit = $line;
1366                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1367                         } else {
1368                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1369                                 next unless $routeit;
1370                         }
1371                         if ($filter) {
1372                                 $dxchan->send($routeit) if $routeit;
1373                         } else {
1374                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1375
1376                         }
1377                 } elsif ($dxchan->is_user) {
1378                         unless ($dxchan->{ann}) {
1379                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1380                         }
1381                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1382                         my $buf = "$to$target de $_[0]: $text";
1383                         $buf =~ s/\%5E/^/g;
1384                         $buf .= "\a\a" if $dxchan->{beep};
1385                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1386                                 $dxchan->send($buf);
1387                         } else {
1388                                 $dxchan->delay($buf);
1389                         }
1390                 }
1391         }
1392 }
1393
1394 sub send_local_config
1395 {
1396         my $self = shift;
1397         my $n;
1398         my @nodes;
1399         my @localnodes;
1400         my @remotenodes;
1401
1402         # send our nodes
1403         if ($self->{isolate}) {
1404                 @localnodes = (DXCluster->get_exact($main::mycall));
1405         } else {
1406                 # create a list of all the nodes that are not connected to this connection
1407                 # and are not themselves isolated, this to make sure that isolated nodes
1408         # don't appear outside of this node
1409                 @nodes = DXNode::get_all();
1410                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1411                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1412                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1413                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1414                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1415                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1416         }
1417
1418         my @s = $me->pc19(@localnodes, @remotenodes);
1419         for (@s) {
1420                 my $routeit = adjust_hops($self, $_);
1421                 $self->send($routeit) if $routeit;
1422         }
1423
1424         # get all the users connected on the above nodes and send them out
1425         foreach $n (@localnodes, @remotenodes) {
1426                 my @users = values %{$n->list};
1427                 my @s = pc16($n, @users);
1428                 for (@s) {
1429                         my $routeit = adjust_hops($self, $_);
1430                         $self->send($routeit) if $routeit;
1431                 }
1432         }
1433 }
1434
1435 #
1436 # route a message down an appropriate interface for a callsign
1437 #
1438 # is called route(to, pcline);
1439 #
1440 sub route
1441 {
1442         my ($self, $call, $line) = @_;
1443
1444         if (ref $self && $call eq $self->{call}) {
1445                 dbg('chan', "Trying to route back to source, dropped");
1446                 return;
1447         }
1448
1449         # always send it down the local interface if available
1450         my $dxchan = DXChannel->get($call);
1451         unless ($dxchan) {
1452                 my $cl = DXCluster->get_exact($call);
1453                 $dxchan = $cl->dxchan if $cl;
1454         }
1455         if ($dxchan) {
1456                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1457                 if ($routeit) {
1458                         $dxchan->send($routeit);
1459                 }
1460         }
1461 }
1462
1463 # broadcast a message to all clusters taking into account isolation
1464 # [except those mentioned after buffer]
1465 sub broadcast_ak1a
1466 {
1467         my $s = shift;                          # the line to be rebroadcast
1468         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1469         my @dxchan = DXChannel::get_all_nodes();
1470         my $dxchan;
1471
1472         # send it if it isn't the except list and isn't isolated and still has a hop count
1473         foreach $dxchan (@dxchan) {
1474                 next if grep $dxchan == $_, @except;
1475                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1476                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1477         }
1478 }
1479
1480 # broadcast a message to all clusters ignoring isolation
1481 # [except those mentioned after buffer]
1482 sub broadcast_all_ak1a
1483 {
1484         my $s = shift;                          # the line to be rebroadcast
1485         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1486         my @dxchan = DXChannel::get_all_nodes();
1487         my $dxchan;
1488
1489         # send it if it isn't the except list and isn't isolated and still has a hop count
1490         foreach $dxchan (@dxchan) {
1491                 next if grep $dxchan == $_, @except;
1492                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1493                 $dxchan->send($routeit);
1494         }
1495 }
1496
1497 # broadcast to all users
1498 # storing the spot or whatever until it is in a state to receive it
1499 sub broadcast_users
1500 {
1501         my $s = shift;                          # the line to be rebroadcast
1502         my $sort = shift;           # the type of transmission
1503         my $fref = shift;           # a reference to an object to filter on
1504         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1505         my @dxchan = DXChannel::get_all_users();
1506         my $dxchan;
1507         my @out;
1508
1509         foreach $dxchan (@dxchan) {
1510                 next if grep $dxchan == $_, @except;
1511                 push @out, $dxchan;
1512         }
1513         broadcast_list($s, $sort, $fref, @out);
1514 }
1515
1516 # broadcast to a list of users
1517 sub broadcast_list
1518 {
1519         my $s = shift;
1520         my $sort = shift;
1521         my $fref = shift;
1522         my $dxchan;
1523
1524         foreach $dxchan (@_) {
1525                 my $filter = 1;
1526
1527                 if ($sort eq 'dx') {
1528                     next unless $dxchan->{dx};
1529                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1530                         next unless $filter;
1531                 }
1532                 next if $sort eq 'ann' && !$dxchan->{ann};
1533                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1534                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1535                 next if $sort eq 'wx' && !$dxchan->{wx};
1536
1537                 $s =~ s/\a//og unless $dxchan->{beep};
1538
1539                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1540                         $dxchan->send($s);
1541                 } else {
1542                         $dxchan->delay($s);
1543                 }
1544         }
1545 }
1546
1547
1548 #
1549 # obtain the hops from the list for this callsign and pc no
1550 #
1551
1552 sub get_hops
1553 {
1554         my $pcno = shift;
1555         my $hops = $DXProt::hopcount{$pcno};
1556         $hops = $DXProt::def_hopcount if !$hops;
1557         return "H$hops";
1558 }
1559
1560 #
1561 # adjust the hop count on a per node basis using the user loadable
1562 # hop table if available or else decrement an existing one
1563 #
1564
1565 sub adjust_hops
1566 {
1567         my $self = shift;
1568         my $s = shift;
1569         my $call = $self->{call};
1570         my $hops;
1571
1572         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1573                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1574                 confess "$call called adjust_hops with '$s'" unless $pcno;
1575                 my $ref = $nodehops{$call} if %nodehops;
1576                 if ($ref) {
1577                         my $newhops = $ref->{$pcno};
1578                         return "" if defined $newhops && $newhops == 0;
1579                         $newhops = $ref->{default} unless $newhops;
1580                         return "" if defined $newhops && $newhops == 0;
1581                         $newhops = $hops if !$newhops;
1582                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1583                 } else {
1584                         # simply decrement it
1585                         $hops--;
1586                         return "" if !$hops;
1587                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1588                 }
1589         }
1590         return $s;
1591 }
1592
1593 #
1594 # load hop tables
1595 #
1596 sub load_hops
1597 {
1598         my $self = shift;
1599         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1600         do "$main::data/hop_table.pl";
1601         return $@ if $@;
1602         return 0;
1603 }
1604
1605
1606 # add a ping request to the ping queues
1607 sub addping
1608 {
1609         my ($from, $to) = @_;
1610         my $ref = $pings{$to} || [];
1611         my $r = {};
1612         $r->{call} = $from;
1613         $r->{t} = [ gettimeofday ];
1614         route(undef, $to, pc51($to, $main::mycall, 1));
1615         push @$ref, $r;
1616         $pings{$to} = $ref;
1617 }
1618
1619 # add a rcmd request to the rcmd queues
1620 sub addrcmd
1621 {
1622         my ($self, $to, $cmd) = @_;
1623
1624         my $r = {};
1625         $r->{call} = $self->{call};
1626         $r->{t} = $main::systime;
1627         $r->{cmd} = $cmd;
1628         $rcmds{$to} = $r;
1629
1630         my $ref = DXCluster->get_exact($to);
1631     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1632                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1633         } else {
1634                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1635         }
1636 }
1637
1638 sub disconnect
1639 {
1640         my $self = shift;
1641         my $nopc39 = shift;
1642
1643         if ($self->{conn} && !$nopc39) {
1644                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1645         }
1646
1647         $self->SUPER::disconnect;
1648 }
1649
1650
1651 #
1652 # send a talk message to this thingy
1653 #
1654 sub talk
1655 {
1656         my ($self, $from, $to, $via, $line) = @_;
1657
1658         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1659         $self->send(DXProt::pc10($from, $to, $via, $line));
1660         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1661 }
1662 1;
1663 __END__